x86: Rename i386 to x86

Signed-off-by: Graeme Russ <graeme.russ@gmail.com>

64 files changed, 8631 insertions, 0 deletions

diff --git a/arch/x86/config.mk b/arch/x86/config.mk
new file mode 100644
index 0000000..e945201
--- /dev/null
+++ b/arch/x86/config.mk
@@ -0,0 +1,42 @@
+#
+# (C) Copyright 2000-2002
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+CONFIG_STANDALONE_LOAD_ADDR ?= 0x40000
+
+PLATFORM_CPPFLAGS += -fno-strict-aliasing
+PLATFORM_CPPFLAGS += -Wstrict-prototypes
+PLATFORM_CPPFLAGS += -mregparm=3
+PLATFORM_CPPFLAGS += -fomit-frame-pointer
+PLATFORM_CPPFLAGS += $(call cc-option, -ffreestanding)
+PLATFORM_CPPFLAGS += $(call cc-option, -fno-toplevel-reorder,  $(call cc-option, -fno-unit-at-a-time))
+PLATFORM_CPPFLAGS += $(call cc-option, -fno-stack-protector)
+PLATFORM_CPPFLAGS += $(call cc-option, -mpreferred-stack-boundary=2)
+PLATFORM_CPPFLAGS += -fno-dwarf2-cfi-asm
+PLATFORM_CPPFLAGS += -DREALMODE_BASE=0x7c0
+
+PLATFORM_RELFLAGS += -ffunction-sections -fvisibility=hidden
+
+PLATFORM_LDFLAGS += --emit-relocs -Bsymbolic -Bsymbolic-functions
+
+LDFLAGS_FINAL += --gc-sections -pie
+LDSCRIPT := $(SRCTREE)/$(CPUDIR)/u-boot.lds
diff --git a/arch/x86/cpu/Makefile b/arch/x86/cpu/Makefile
new file mode 100644
index 0000000..ddde83c
--- /dev/null
+++ b/arch/x86/cpu/Makefile
@@ -0,0 +1,50 @@
+#
+# (C) Copyright 2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# (C) Copyright 2002
+# Daniel Engström, Omicron Ceti AB, daniel@omicron.se.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= $(obj)lib$(CPU).o
+
+START	= start.o start16.o resetvec.o
+COBJS	= interrupts.o cpu.o
+
+SRCS	:= $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
+START	:= $(addprefix $(obj),$(START))
+
+all:	$(obj).depend $(START) $(LIB)
+
+$(LIB):	$(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/arch/x86/cpu/config.mk b/arch/x86/cpu/config.mk
new file mode 100644
index 0000000..d1b528a
--- /dev/null
+++ b/arch/x86/cpu/config.mk
@@ -0,0 +1,32 @@
+#
+# (C) Copyright 2002
+# Daniel Engström, Omicron Ceti AB, daniel@omicron.se.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+CROSS_COMPILE ?= i386-linux-
+
+PLATFORM_CPPFLAGS += -DCONFIG_X86 -D__I386__ -march=i386 -Werror
+
+# DO NOT MODIFY THE FOLLOWING UNLESS YOU REALLY KNOW WHAT YOU ARE DOING!
+LDPPFLAGS += -DRESET_SEG_START=0xffff0000
+LDPPFLAGS += -DRESET_SEG_SIZE=0x10000
+LDPPFLAGS += -DRESET_VEC_LOC=0xfff0
+LDPPFLAGS += -DSTART_16=0xf800
diff --git a/arch/x86/cpu/cpu.c b/arch/x86/cpu/cpu.c
new file mode 100644
index 0000000..0c5d7c3
--- /dev/null
+++ b/arch/x86/cpu/cpu.c
@@ -0,0 +1,157 @@
+/*
+ * (C) Copyright 2008-2011
+ * Graeme Russ, <graeme.russ@gmail.com>
+ *
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
+ *
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Alex Zuepke <azu@sysgo.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <command.h>
+#include <asm/processor.h>
+#include <asm/processor-flags.h>
+#include <asm/interrupt.h>
+
+/*
+ * Constructor for a conventional segment GDT (or LDT) entry
+ * This is a macro so it can be used in initialisers
+ */
+#define GDT_ENTRY(flags, base, limit)			\
+	((((base)  & 0xff000000ULL) << (56-24)) |	\
+	 (((flags) & 0x0000f0ffULL) << 40) |		\
+	 (((limit) & 0x000f0000ULL) << (48-16)) |	\
+	 (((base)  & 0x00ffffffULL) << 16) |		\
+	 (((limit) & 0x0000ffffULL)))
+
+struct gdt_ptr {
+	u16 len;
+	u32 ptr;
+} __attribute__((packed));
+
+static void reload_gdt(void)
+{
+	/*
+	 * There are machines which are known to not boot with the GDT
+	 * being 8-byte unaligned.  Intel recommends 16 byte alignment
+	 */
+	static const u64 boot_gdt[] __attribute__((aligned(16))) = {
+		/* CS: code, read/execute, 4 GB, base 0 */
+		[GDT_ENTRY_32BIT_CS] = GDT_ENTRY(0xc09b, 0, 0xfffff),
+		/* DS: data, read/write, 4 GB, base 0 */
+		[GDT_ENTRY_32BIT_DS] = GDT_ENTRY(0xc093, 0, 0xfffff),
+		/* 16-bit CS: code, read/execute, 64 kB, base 0 */
+		[GDT_ENTRY_16BIT_CS] = GDT_ENTRY(0x109b, 0, 0x0ffff),
+		/* 16-bit DS: data, read/write, 64 kB, base 0 */
+		[GDT_ENTRY_16BIT_DS] = GDT_ENTRY(0x1093, 0, 0x0ffff),
+	};
+	static struct gdt_ptr gdt;
+
+	gdt.len = sizeof(boot_gdt)-1;
+	gdt.ptr = (u32)&boot_gdt;
+
+	asm volatile("lgdtl %0\n" \
+		     "movl $((2+1)*8), %%ecx\n" \
+		     "movl %%ecx, %%ds\n" \
+		     "movl %%ecx, %%es\n" \
+		     "movl %%ecx, %%fs\n" \
+		     "movl %%ecx, %%gs\n" \
+		     "movl %%ecx, %%ss" \
+		     : : "m" (gdt) : "ecx");
+}
+
+int x86_cpu_init_f(void)
+{
+	const u32 em_rst = ~X86_CR0_EM;
+	const u32 mp_ne_set = X86_CR0_MP | X86_CR0_NE;
+
+	/* initialize FPU, reset EM, set MP and NE */
+	asm ("fninit\n" \
+	     "movl %%cr0, %%eax\n" \
+	     "andl %0, %%eax\n" \
+	     "orl  %1, %%eax\n" \
+	     "movl %%eax, %%cr0\n" \
+	     : : "i" (em_rst), "i" (mp_ne_set) : "eax");
+
+	return 0;
+}
+int cpu_init_f(void) __attribute__((weak, alias("x86_cpu_init_f")));
+
+int x86_cpu_init_r(void)
+{
+	const u32 nw_cd_rst = ~(X86_CR0_NW | X86_CR0_CD);
+
+	/* turn on the cache and disable write through */
+	asm("movl	%%cr0, %%eax\n"
+	    "andl	%0, %%eax\n"
+	    "movl	%%eax, %%cr0\n"
+	    "wbinvd\n" : : "i" (nw_cd_rst) : "eax");
+
+	reload_gdt();
+
+	/* Initialize core interrupt and exception functionality of CPU */
+	cpu_init_interrupts ();
+	return 0;
+}
+int cpu_init_r(void) __attribute__((weak, alias("x86_cpu_init_r")));
+
+int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	printf ("resetting ...\n");
+
+	/* wait 50 ms */
+	udelay(50000);
+	disable_interrupts();
+	reset_cpu(0);
+
+	/*NOTREACHED*/
+	return 0;
+}
+
+void  flush_cache (unsigned long dummy1, unsigned long dummy2)
+{
+	asm("wbinvd\n");
+}
+
+void __attribute__ ((regparm(0))) generate_gpf(void);
+
+/* segment 0x70 is an arbitrary segment which does not exist */
+asm(".globl generate_gpf\n"
+    ".hidden generate_gpf\n"
+    ".type generate_gpf, @function\n"
+    "generate_gpf:\n"
+    "ljmp   $0x70, $0x47114711\n");
+
+void __reset_cpu(ulong addr)
+{
+	printf("Resetting using x86 Triple Fault\n");
+	set_vector(13, generate_gpf);  /* general protection fault handler */
+	set_vector(8, generate_gpf);   /* double fault handler */
+	generate_gpf();                /* start the show */
+}
+void reset_cpu(ulong addr) __attribute__((weak, alias("__reset_cpu")));
diff --git a/arch/x86/cpu/interrupts.c b/arch/x86/cpu/interrupts.c
new file mode 100644
index 0000000..62bcadc
--- /dev/null
+++ b/arch/x86/cpu/interrupts.c
@@ -0,0 +1,674 @@
+/*
+ * (C) Copyright 2008-2011
+ * Graeme Russ, <graeme.russ@gmail.com>
+ *
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
+ *
+ * Portions of this file are derived from the Linux kernel source
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/interrupt.h>
+#include <asm/io.h>
+#include <asm/processor-flags.h>
+
+#define DECLARE_INTERRUPT(x) \
+	".globl irq_"#x"\n" \
+	".hidden irq_"#x"\n" \
+	".type irq_"#x", @function\n" \
+	"irq_"#x":\n" \
+	"pushl $"#x"\n" \
+	"jmp irq_common_entry\n"
+
+/*
+ * Volatile isn't enough to prevent the compiler from reordering the
+ * read/write functions for the control registers and messing everything up.
+ * A memory clobber would solve the problem, but would prevent reordering of
+ * all loads stores around it, which can hurt performance. Solution is to
+ * use a variable and mimic reads and writes to it to enforce serialisation
+ */
+static unsigned long __force_order;
+
+static inline unsigned long read_cr0(void)
+{
+	unsigned long val;
+	asm volatile("mov %%cr0,%0\n\t" : "=r" (val), "=m" (__force_order));
+	return val;
+}
+
+static inline unsigned long read_cr2(void)
+{
+	unsigned long val;
+	asm volatile("mov %%cr2,%0\n\t" : "=r" (val), "=m" (__force_order));
+	return val;
+}
+
+static inline unsigned long read_cr3(void)
+{
+	unsigned long val;
+	asm volatile("mov %%cr3,%0\n\t" : "=r" (val), "=m" (__force_order));
+	return val;
+}
+
+static inline unsigned long read_cr4(void)
+{
+	unsigned long val;
+	asm volatile("mov %%cr4,%0\n\t" : "=r" (val), "=m" (__force_order));
+	return val;
+}
+
+static inline unsigned long get_debugreg(int regno)
+{
+	unsigned long val = 0;	/* Damn you, gcc! */
+
+	switch (regno) {
+	case 0:
+		asm("mov %%db0, %0" :"=r" (val));
+		break;
+	case 1:
+		asm("mov %%db1, %0" :"=r" (val));
+		break;
+	case 2:
+		asm("mov %%db2, %0" :"=r" (val));
+		break;
+	case 3:
+		asm("mov %%db3, %0" :"=r" (val));
+		break;
+	case 6:
+		asm("mov %%db6, %0" :"=r" (val));
+		break;
+	case 7:
+		asm("mov %%db7, %0" :"=r" (val));
+		break;
+	default:
+		val = 0;
+	}
+	return val;
+}
+
+void dump_regs(struct irq_regs *regs)
+{
+	unsigned long cr0 = 0L, cr2 = 0L, cr3 = 0L, cr4 = 0L;
+	unsigned long d0, d1, d2, d3, d6, d7;
+	unsigned long sp;
+
+	printf("EIP: %04x:[<%08lx>] EFLAGS: %08lx\n",
+			(u16)regs->xcs, regs->eip, regs->eflags);
+
+	printf("EAX: %08lx EBX: %08lx ECX: %08lx EDX: %08lx\n",
+		regs->eax, regs->ebx, regs->ecx, regs->edx);
+	printf("ESI: %08lx EDI: %08lx EBP: %08lx ESP: %08lx\n",
+		regs->esi, regs->edi, regs->ebp, regs->esp);
+	printf(" DS: %04x ES: %04x FS: %04x GS: %04x SS: %04x\n",
+	       (u16)regs->xds, (u16)regs->xes, (u16)regs->xfs, (u16)regs->xgs, (u16)regs->xss);
+
+	cr0 = read_cr0();
+	cr2 = read_cr2();
+	cr3 = read_cr3();
+	cr4 = read_cr4();
+
+	printf("CR0: %08lx CR2: %08lx CR3: %08lx CR4: %08lx\n",
+			cr0, cr2, cr3, cr4);
+
+	d0 = get_debugreg(0);
+	d1 = get_debugreg(1);
+	d2 = get_debugreg(2);
+	d3 = get_debugreg(3);
+
+	printf("DR0: %08lx DR1: %08lx DR2: %08lx DR3: %08lx\n",
+			d0, d1, d2, d3);
+
+	d6 = get_debugreg(6);
+	d7 = get_debugreg(7);
+	printf("DR6: %08lx DR7: %08lx\n",
+			d6, d7);
+
+	printf("Stack:\n");
+	sp = regs->esp;
+
+	sp += 64;
+
+	while (sp > (regs->esp - 16)) {
+		if (sp == regs->esp)
+			printf("--->");
+		else
+			printf("    ");
+		printf("0x%8.8lx : 0x%8.8lx\n", sp, (ulong)readl(sp));
+		sp -= 4;
+	}
+}
+
+struct idt_entry {
+	u16	base_low;
+	u16	selector;
+	u8	res;
+	u8	access;
+	u16	base_high;
+} __attribute__ ((packed));
+
+struct desc_ptr {
+	unsigned short size;
+	unsigned long address;
+	unsigned short segment;
+} __attribute__((packed));
+
+struct idt_entry idt[256];
+
+struct desc_ptr idt_ptr;
+
+static inline void load_idt(const struct desc_ptr *dtr)
+{
+	asm volatile("cs lidt %0"::"m" (*dtr));
+}
+
+void set_vector(u8 intnum, void *routine)
+{
+	idt[intnum].base_high = (u16)((u32)(routine) >> 16);
+	idt[intnum].base_low = (u16)((u32)(routine) & 0xffff);
+}
+
+void irq_0(void);
+void irq_1(void);
+
+int cpu_init_interrupts(void)
+{
+	int i;
+
+	int irq_entry_size = irq_1 - irq_0;
+	void *irq_entry = (void *)irq_0;
+
+	/* Just in case... */
+	disable_interrupts();
+
+	/* Setup the IDT */
+	for (i=0;i<256;i++) {
+		idt[i].access = 0x8e;
+		idt[i].res = 0;
+		idt[i].selector = 0x10;
+		set_vector(i, irq_entry);
+		irq_entry += irq_entry_size;
+	}
+
+	idt_ptr.size = 256 * 8;
+	idt_ptr.address = (unsigned long) idt;
+	idt_ptr.segment = 0x18;
+
+	load_idt(&idt_ptr);
+
+	/* It is now safe to enable interrupts */
+	enable_interrupts();
+
+	return 0;
+}
+
+void __do_irq(int irq)
+{
+	printf("Unhandled IRQ : %d\n", irq);
+}
+void do_irq(int irq) __attribute__((weak, alias("__do_irq")));
+
+void enable_interrupts(void)
+{
+	asm("sti\n");
+}
+
+int disable_interrupts(void)
+{
+	long flags;
+
+	asm volatile ("pushfl ; popl %0 ; cli\n" : "=g" (flags) : );
+
+	return flags & X86_EFLAGS_IF; /* IE flags is bit 9 */
+}
+
+/* IRQ Low-Level Service Routine */
+void irq_llsr(struct irq_regs *regs)
+{
+	/*
+	 * For detailed description of each exception, refer to:
+	 * Intel® 64 and IA-32 Architectures Software Developer's Manual
+	 * Volume 1: Basic Architecture
+	 * Order Number: 253665-029US, November 2008
+	 * Table 6-1. Exceptions and Interrupts
+	 */
+	switch (regs->irq_id) {
+	case 0x00:
+		printf("Divide Error (Division by zero)\n");
+		dump_regs(regs);
+		while(1);
+		break;
+	case 0x01:
+		printf("Debug Interrupt (Single step)\n");
+		dump_regs(regs);
+		break;
+	case 0x02:
+		printf("NMI Interrupt\n");
+		dump_regs(regs);
+		break;
+	case 0x03:
+		printf("Breakpoint\n");
+		dump_regs(regs);
+		break;
+	case 0x04:
+		printf("Overflow\n");
+		dump_regs(regs);
+		while(1);
+		break;
+	case 0x05:
+		printf("BOUND Range Exceeded\n");
+		dump_regs(regs);
+		while(1);
+		break;
+	case 0x06:
+		printf("Invalid Opcode (UnDefined Opcode)\n");
+		dump_regs(regs);
+		while(1);
+		break;
+	case 0x07:
+		printf("Device Not Available (No Math Coprocessor)\n");
+		dump_regs(regs);
+		while(1);
+		break;
+	case 0x08:
+		printf("Double fault\n");
+		dump_regs(regs);
+		while(1);
+		break;
+	case 0x09:
+		printf("Co-processor segment overrun\n");
+		dump_regs(regs);
+		while(1);
+		break;
+	case 0x0a:
+		printf("Invalid TSS\n");
+		dump_regs(regs);
+		break;
+	case 0x0b:
+		printf("Segment Not Present\n");
+		dump_regs(regs);
+		while(1);
+		break;
+	case 0x0c:
+		printf("Stack Segment Fault\n");
+		dump_regs(regs);
+		while(1);
+		break;
+	case 0x0d:
+		printf("General Protection\n");
+		dump_regs(regs);
+		break;
+	case 0x0e:
+		printf("Page fault\n");
+		dump_regs(regs);
+		while(1);
+		break;
+	case 0x0f:
+		printf("Floating-Point Error (Math Fault)\n");
+		dump_regs(regs);
+		break;
+	case 0x10:
+		printf("Alignment check\n");
+		dump_regs(regs);
+		break;
+	case 0x11:
+		printf("Machine Check\n");
+		dump_regs(regs);
+		break;
+	case 0x12:
+		printf("SIMD Floating-Point Exception\n");
+		dump_regs(regs);
+		break;
+	case 0x13:
+	case 0x14:
+	case 0x15:
+	case 0x16:
+	case 0x17:
+	case 0x18:
+	case 0x19:
+	case 0x1a:
+	case 0x1b:
+	case 0x1c:
+	case 0x1d:
+	case 0x1e:
+	case 0x1f:
+		printf("Reserved Exception\n");
+		dump_regs(regs);
+		break;
+
+	default:
+		/* Hardware or User IRQ */
+		do_irq(regs->irq_id);
+	}
+}
+
+/*
+ * OK - This looks really horrible, but it serves a purpose - It helps create
+ * fully relocatable code.
+ *  - The call to irq_llsr will be a relative jump
+ *  - The IRQ entries will be guaranteed to be in order
+ *  Interrupt entries are now very small (a push and a jump) but they are
+ *  now slower (all registers pushed on stack which provides complete
+ *  crash dumps in the low level handlers
+ *
+ * Interrupt Entry Point:
+ *  - Interrupt has caused eflags, CS and EIP to be pushed
+ *  - Interrupt Vector Handler has pushed orig_eax
+ *  - pt_regs.esp needs to be adjusted by 40 bytes:
+ *      12 bytes pushed by CPU (EFLAGSF, CS, EIP)
+ *      4 bytes pushed by vector handler (irq_id)
+ *      24 bytes pushed before SP (SS, GS, FS, ES, DS, EAX)
+ *      NOTE: Only longs are pushed on/popped off the stack!
+ */
+asm(".globl irq_common_entry\n" \
+	".hidden irq_common_entry\n" \
+	".type irq_common_entry, @function\n" \
+	"irq_common_entry:\n" \
+	"cld\n" \
+	"pushl %ss\n" \
+	"pushl %gs\n" \
+	"pushl %fs\n" \
+	"pushl %es\n" \
+	"pushl %ds\n" \
+	"pushl %eax\n" \
+	"movl  %esp, %eax\n" \
+	"addl  $40, %eax\n" \
+	"pushl %eax\n" \
+	"pushl %ebp\n" \
+	"pushl %edi\n" \
+	"pushl %esi\n" \
+	"pushl %edx\n" \
+	"pushl %ecx\n" \
+	"pushl %ebx\n" \
+	"mov   %esp, %eax\n" \
+	"call irq_llsr\n" \
+	"popl %ebx\n" \
+	"popl %ecx\n" \
+	"popl %edx\n" \
+	"popl %esi\n" \
+	"popl %edi\n" \
+	"popl %ebp\n" \
+	"popl %eax\n" \
+	"popl %eax\n" \
+	"popl %ds\n" \
+	"popl %es\n" \
+	"popl %fs\n" \
+	"popl %gs\n" \
+	"popl %ss\n" \
+	"add  $4, %esp\n" \
+	"iret\n" \
+	DECLARE_INTERRUPT(0) \
+	DECLARE_INTERRUPT(1) \
+	DECLARE_INTERRUPT(2) \
+	DECLARE_INTERRUPT(3) \
+	DECLARE_INTERRUPT(4) \
+	DECLARE_INTERRUPT(5) \
+	DECLARE_INTERRUPT(6) \
+	DECLARE_INTERRUPT(7) \
+	DECLARE_INTERRUPT(8) \
+	DECLARE_INTERRUPT(9) \
+	DECLARE_INTERRUPT(10) \
+	DECLARE_INTERRUPT(11) \
+	DECLARE_INTERRUPT(12) \
+	DECLARE_INTERRUPT(13) \
+	DECLARE_INTERRUPT(14) \
+	DECLARE_INTERRUPT(15) \
+	DECLARE_INTERRUPT(16) \
+	DECLARE_INTERRUPT(17) \
+	DECLARE_INTERRUPT(18) \
+	DECLARE_INTERRUPT(19) \
+	DECLARE_INTERRUPT(20) \
+	DECLARE_INTERRUPT(21) \
+	DECLARE_INTERRUPT(22) \
+	DECLARE_INTERRUPT(23) \
+	DECLARE_INTERRUPT(24) \
+	DECLARE_INTERRUPT(25) \
+	DECLARE_INTERRUPT(26) \
+	DECLARE_INTERRUPT(27) \
+	DECLARE_INTERRUPT(28) \
+	DECLARE_INTERRUPT(29) \
+	DECLARE_INTERRUPT(30) \
+	DECLARE_INTERRUPT(31) \
+	DECLARE_INTERRUPT(32) \
+	DECLARE_INTERRUPT(33) \
+	DECLARE_INTERRUPT(34) \
+	DECLARE_INTERRUPT(35) \
+	DECLARE_INTERRUPT(36) \
+	DECLARE_INTERRUPT(37) \
+	DECLARE_INTERRUPT(38) \
+	DECLARE_INTERRUPT(39) \
+	DECLARE_INTERRUPT(40) \
+	DECLARE_INTERRUPT(41) \
+	DECLARE_INTERRUPT(42) \
+	DECLARE_INTERRUPT(43) \
+	DECLARE_INTERRUPT(44) \
+	DECLARE_INTERRUPT(45) \
+	DECLARE_INTERRUPT(46) \
+	DECLARE_INTERRUPT(47) \
+	DECLARE_INTERRUPT(48) \
+	DECLARE_INTERRUPT(49) \
+	DECLARE_INTERRUPT(50) \
+	DECLARE_INTERRUPT(51) \
+	DECLARE_INTERRUPT(52) \
+	DECLARE_INTERRUPT(53) \
+	DECLARE_INTERRUPT(54) \
+	DECLARE_INTERRUPT(55) \
+	DECLARE_INTERRUPT(56) \
+	DECLARE_INTERRUPT(57) \
+	DECLARE_INTERRUPT(58) \
+	DECLARE_INTERRUPT(59) \
+	DECLARE_INTERRUPT(60) \
+	DECLARE_INTERRUPT(61) \
+	DECLARE_INTERRUPT(62) \
+	DECLARE_INTERRUPT(63) \
+	DECLARE_INTERRUPT(64) \
+	DECLARE_INTERRUPT(65) \
+	DECLARE_INTERRUPT(66) \
+	DECLARE_INTERRUPT(67) \
+	DECLARE_INTERRUPT(68) \
+	DECLARE_INTERRUPT(69) \
+	DECLARE_INTERRUPT(70) \
+	DECLARE_INTERRUPT(71) \
+	DECLARE_INTERRUPT(72) \
+	DECLARE_INTERRUPT(73) \
+	DECLARE_INTERRUPT(74) \
+	DECLARE_INTERRUPT(75) \
+	DECLARE_INTERRUPT(76) \
+	DECLARE_INTERRUPT(77) \
+	DECLARE_INTERRUPT(78) \
+	DECLARE_INTERRUPT(79) \
+	DECLARE_INTERRUPT(80) \
+	DECLARE_INTERRUPT(81) \
+	DECLARE_INTERRUPT(82) \
+	DECLARE_INTERRUPT(83) \
+	DECLARE_INTERRUPT(84) \
+	DECLARE_INTERRUPT(85) \
+	DECLARE_INTERRUPT(86) \
+	DECLARE_INTERRUPT(87) \
+	DECLARE_INTERRUPT(88) \
+	DECLARE_INTERRUPT(89) \
+	DECLARE_INTERRUPT(90) \
+	DECLARE_INTERRUPT(91) \
+	DECLARE_INTERRUPT(92) \
+	DECLARE_INTERRUPT(93) \
+	DECLARE_INTERRUPT(94) \
+	DECLARE_INTERRUPT(95) \
+	DECLARE_INTERRUPT(97) \
+	DECLARE_INTERRUPT(96) \
+	DECLARE_INTERRUPT(98) \
+	DECLARE_INTERRUPT(99) \
+	DECLARE_INTERRUPT(100) \
+	DECLARE_INTERRUPT(101) \
+	DECLARE_INTERRUPT(102) \
+	DECLARE_INTERRUPT(103) \
+	DECLARE_INTERRUPT(104) \
+	DECLARE_INTERRUPT(105) \
+	DECLARE_INTERRUPT(106) \
+	DECLARE_INTERRUPT(107) \
+	DECLARE_INTERRUPT(108) \
+	DECLARE_INTERRUPT(109) \
+	DECLARE_INTERRUPT(110) \
+	DECLARE_INTERRUPT(111) \
+	DECLARE_INTERRUPT(112) \
+	DECLARE_INTERRUPT(113) \
+	DECLARE_INTERRUPT(114) \
+	DECLARE_INTERRUPT(115) \
+	DECLARE_INTERRUPT(116) \
+	DECLARE_INTERRUPT(117) \
+	DECLARE_INTERRUPT(118) \
+	DECLARE_INTERRUPT(119) \
+	DECLARE_INTERRUPT(120) \
+	DECLARE_INTERRUPT(121) \
+	DECLARE_INTERRUPT(122) \
+	DECLARE_INTERRUPT(123) \
+	DECLARE_INTERRUPT(124) \
+	DECLARE_INTERRUPT(125) \
+	DECLARE_INTERRUPT(126) \
+	DECLARE_INTERRUPT(127) \
+	DECLARE_INTERRUPT(128) \
+	DECLARE_INTERRUPT(129) \
+	DECLARE_INTERRUPT(130) \
+	DECLARE_INTERRUPT(131) \
+	DECLARE_INTERRUPT(132) \
+	DECLARE_INTERRUPT(133) \
+	DECLARE_INTERRUPT(134) \
+	DECLARE_INTERRUPT(135) \
+	DECLARE_INTERRUPT(136) \
+	DECLARE_INTERRUPT(137) \
+	DECLARE_INTERRUPT(138) \
+	DECLARE_INTERRUPT(139) \
+	DECLARE_INTERRUPT(140) \
+	DECLARE_INTERRUPT(141) \
+	DECLARE_INTERRUPT(142) \
+	DECLARE_INTERRUPT(143) \
+	DECLARE_INTERRUPT(144) \
+	DECLARE_INTERRUPT(145) \
+	DECLARE_INTERRUPT(146) \
+	DECLARE_INTERRUPT(147) \
+	DECLARE_INTERRUPT(148) \
+	DECLARE_INTERRUPT(149) \
+	DECLARE_INTERRUPT(150) \
+	DECLARE_INTERRUPT(151) \
+	DECLARE_INTERRUPT(152) \
+	DECLARE_INTERRUPT(153) \
+	DECLARE_INTERRUPT(154) \
+	DECLARE_INTERRUPT(155) \
+	DECLARE_INTERRUPT(156) \
+	DECLARE_INTERRUPT(157) \
+	DECLARE_INTERRUPT(158) \
+	DECLARE_INTERRUPT(159) \
+	DECLARE_INTERRUPT(160) \
+	DECLARE_INTERRUPT(161) \
+	DECLARE_INTERRUPT(162) \
+	DECLARE_INTERRUPT(163) \
+	DECLARE_INTERRUPT(164) \
+	DECLARE_INTERRUPT(165) \
+	DECLARE_INTERRUPT(166) \
+	DECLARE_INTERRUPT(167) \
+	DECLARE_INTERRUPT(168) \
+	DECLARE_INTERRUPT(169) \
+	DECLARE_INTERRUPT(170) \
+	DECLARE_INTERRUPT(171) \
+	DECLARE_INTERRUPT(172) \
+	DECLARE_INTERRUPT(173) \
+	DECLARE_INTERRUPT(174) \
+	DECLARE_INTERRUPT(175) \
+	DECLARE_INTERRUPT(176) \
+	DECLARE_INTERRUPT(177) \
+	DECLARE_INTERRUPT(178) \
+	DECLARE_INTERRUPT(179) \
+	DECLARE_INTERRUPT(180) \
+	DECLARE_INTERRUPT(181) \
+	DECLARE_INTERRUPT(182) \
+	DECLARE_INTERRUPT(183) \
+	DECLARE_INTERRUPT(184) \
+	DECLARE_INTERRUPT(185) \
+	DECLARE_INTERRUPT(186) \
+	DECLARE_INTERRUPT(187) \
+	DECLARE_INTERRUPT(188) \
+	DECLARE_INTERRUPT(189) \
+	DECLARE_INTERRUPT(190) \
+	DECLARE_INTERRUPT(191) \
+	DECLARE_INTERRUPT(192) \
+	DECLARE_INTERRUPT(193) \
+	DECLARE_INTERRUPT(194) \
+	DECLARE_INTERRUPT(195) \
+	DECLARE_INTERRUPT(196) \
+	DECLARE_INTERRUPT(197) \
+	DECLARE_INTERRUPT(198) \
+	DECLARE_INTERRUPT(199) \
+	DECLARE_INTERRUPT(200) \
+	DECLARE_INTERRUPT(201) \
+	DECLARE_INTERRUPT(202) \
+	DECLARE_INTERRUPT(203) \
+	DECLARE_INTERRUPT(204) \
+	DECLARE_INTERRUPT(205) \
+	DECLARE_INTERRUPT(206) \
+	DECLARE_INTERRUPT(207) \
+	DECLARE_INTERRUPT(208) \
+	DECLARE_INTERRUPT(209) \
+	DECLARE_INTERRUPT(210) \
+	DECLARE_INTERRUPT(211) \
+	DECLARE_INTERRUPT(212) \
+	DECLARE_INTERRUPT(213) \
+	DECLARE_INTERRUPT(214) \
+	DECLARE_INTERRUPT(215) \
+	DECLARE_INTERRUPT(216) \
+	DECLARE_INTERRUPT(217) \
+	DECLARE_INTERRUPT(218) \
+	DECLARE_INTERRUPT(219) \
+	DECLARE_INTERRUPT(220) \
+	DECLARE_INTERRUPT(221) \
+	DECLARE_INTERRUPT(222) \
+	DECLARE_INTERRUPT(223) \
+	DECLARE_INTERRUPT(224) \
+	DECLARE_INTERRUPT(225) \
+	DECLARE_INTERRUPT(226) \
+	DECLARE_INTERRUPT(227) \
+	DECLARE_INTERRUPT(228) \
+	DECLARE_INTERRUPT(229) \
+	DECLARE_INTERRUPT(230) \
+	DECLARE_INTERRUPT(231) \
+	DECLARE_INTERRUPT(232) \
+	DECLARE_INTERRUPT(233) \
+	DECLARE_INTERRUPT(234) \
+	DECLARE_INTERRUPT(235) \
+	DECLARE_INTERRUPT(236) \
+	DECLARE_INTERRUPT(237) \
+	DECLARE_INTERRUPT(238) \
+	DECLARE_INTERRUPT(239) \
+	DECLARE_INTERRUPT(240) \
+	DECLARE_INTERRUPT(241) \
+	DECLARE_INTERRUPT(242) \
+	DECLARE_INTERRUPT(243) \
+	DECLARE_INTERRUPT(244) \
+	DECLARE_INTERRUPT(245) \
+	DECLARE_INTERRUPT(246) \
+	DECLARE_INTERRUPT(247) \
+	DECLARE_INTERRUPT(248) \
+	DECLARE_INTERRUPT(249) \
+	DECLARE_INTERRUPT(250) \
+	DECLARE_INTERRUPT(251) \
+	DECLARE_INTERRUPT(252) \
+	DECLARE_INTERRUPT(253) \
+	DECLARE_INTERRUPT(254) \
+	DECLARE_INTERRUPT(255));
diff --git a/arch/x86/cpu/resetvec.S b/arch/x86/cpu/resetvec.S
new file mode 100644
index 0000000..c690d25
--- /dev/null
+++ b/arch/x86/cpu/resetvec.S
@@ -0,0 +1,38 @@
+/*
+ *  U-boot - x86 Startup Code
+ *
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/* Reset vector, jumps to start16.S */
+
+.extern start16
+
+.section .resetvec, "ax"
+.code16
+reset_vector:
+	cli
+	cld
+	jmp start16
+
+	.org 0xf
+	nop
diff --git a/arch/x86/cpu/sc520/Makefile b/arch/x86/cpu/sc520/Makefile
new file mode 100644
index 0000000..54260b6
--- /dev/null
+++ b/arch/x86/cpu/sc520/Makefile
@@ -0,0 +1,57 @@
+#
+# (C) Copyright 2008
+# Graeme Russ, graeme.russ@gmail.com.
+#
+# (C) Copyright 2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# (C) Copyright 2002
+# Daniel Engström, Omicron Ceti AB, daniel@omicron.se.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	:= $(obj)lib$(SOC).o
+
+COBJS-$(CONFIG_SYS_SC520) += sc520.o
+COBJS-$(CONFIG_PCI) += sc520_pci.o
+COBJS-$(CONFIG_SYS_SC520) += sc520_sdram.o
+COBJS-$(CONFIG_SYS_SC520_SSI) += sc520_ssi.o
+COBJS-$(CONFIG_SYS_SC520_TIMER) += sc520_timer.o
+
+SOBJS-$(CONFIG_SYS_SC520) += sc520_car.o
+
+SRCS	:= $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
+OBJS	:= $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))
+
+all: $(obj).depend $(LIB)
+
+$(LIB):	$(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
\ No newline at end of file
diff --git a/arch/x86/cpu/sc520/sc520.c b/arch/x86/cpu/sc520/sc520.c
new file mode 100644
index 0000000..edc1a5c
--- /dev/null
+++ b/arch/x86/cpu/sc520/sc520.c
@@ -0,0 +1,77 @@
+/*
+ * (C) Copyright 2008-2011
+ * Graeme Russ, <graeme.russ@gmail.com>
+ *
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/processor-flags.h>
+#include <asm/ic/sc520.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+sc520_mmcr_t *sc520_mmcr = (sc520_mmcr_t *)SC520_MMCR_BASE;
+
+int cpu_init_f(void)
+{
+	if (CONFIG_SYS_SC520_HIGH_SPEED) {
+		/* set it to 133 MHz and write back */
+		writeb(0x02, &sc520_mmcr->cpuctl);
+		gd->cpu_clk = 133000000;
+	} else {
+		/* set it to 100 MHz and write back */
+		writeb(0x01, &sc520_mmcr->cpuctl);
+		gd->cpu_clk = 100000000;
+	}
+
+	/* wait at least one millisecond */
+	asm("movl	$0x2000, %%ecx\n"
+	    "0:		pushl %%ecx\n"
+	    "popl	%%ecx\n"
+	    "loop 0b\n": : : "ecx");
+
+	return x86_cpu_init_f();
+}
+
+int cpu_init_r(void)
+{
+	/* Disable the PAR used for CAR */
+	writel(0x0000000, &sc520_mmcr->par[2]);
+
+	/* turn on the SDRAM write buffer */
+	writeb(0x11, &sc520_mmcr->dbctl);
+
+	return x86_cpu_init_r();
+}
+
+#ifdef CONFIG_SYS_SC520_RESET
+void reset_cpu(ulong addr)
+{
+	printf("Resetting using SC520 MMCR\n");
+	/* Write a '1' to the SYS_RST of the RESCFG MMCR */
+	writeb(0x01, &sc520_mmcr->rescfg);
+
+	/* NOTREACHED */
+}
+#endif
diff --git a/arch/x86/cpu/sc520/sc520_car.S b/arch/x86/cpu/sc520/sc520_car.S
new file mode 100644
index 0000000..a33f94f
--- /dev/null
+++ b/arch/x86/cpu/sc520/sc520_car.S
@@ -0,0 +1,93 @@
+/*
+ * (C) Copyright 2010-2011
+ * Graeme Russ, <graeme.russ@gmail.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+#include <asm/processor-flags.h>
+#include <asm/ic/sc520.h>
+
+.section .text
+
+.globl car_init
+car_init:
+	/*
+	 * How to enable Cache-As-RAM for the AMD Elan SC520:
+	 *  1. Turn off the CPU Cache (may not be strictly required)
+	 *  2. Set code execution PAR (usually the BOOTCS region) to be
+	 *     non-cachable
+	 *  3. Create a Cachable PAR Region for an area of memory which is
+	 *       a) NOT where the code is being executed
+	 *       b) NOT SDRAM (Controller not initialised yet)
+	 *       c) WILL response to read requests
+	 *     The easiest way to do this is to create a second BOOTCS
+	 *     PAR mappnig with an address != the PAR in step 2
+	 *  4. Issue a wbinvd to invalidate the CPU cache
+	 *  5. Turn on the CPU Cache
+	 *  6. Read 16kB from the cached PAR region setup in step 3
+	 *  7. Turn off the CPU Cache (but DO NOT issue a wbinvd)
+	 *
+	 * The following code uses PAR2 as the cached PAR (PAR0 and PAR1
+	 * are avoided as these are the only two PARs which can be used
+	 * as PCI BUS Memory regions which the board might require)
+	 *
+	 * The configuration of PAR2 must be set in the board configuration
+	 * file as CONFIG_SYS_SC520_CAR_PAR
+	 */
+
+	/* Configure Cache-As-RAM PAR */
+	movl	$CONFIG_SYS_SC520_CAR_PAR, %eax
+	movl	$SC520_PAR2, %edi
+	movl	%eax, (%edi)
+
+	/* Trash the cache then turn it on */
+	wbinvd
+	movl	%cr0, %eax
+	andl	$~(X86_CR0_NW | X86_CR0_CD), %eax
+	movl	%eax, %cr0
+
+	/*
+	 * The cache is now enabled and empty. Map a region of memory to
+	 * it by reading that region.
+	 */
+	movl	$CONFIG_SYS_CAR_ADDR, %esi
+	movl	$CONFIG_SYS_CAR_SIZE, %ecx
+	shrl	$2, %ecx			/* we are reading longs */
+	cld
+	rep	lodsl
+
+	/* Turn off the cache, but don't trash it */
+	movl	%cr0, %eax
+	orl	$(X86_CR0_NW | X86_CR0_CD), %eax
+	movl	%eax, %cr0
+
+	/* Clear the CAR region */
+	xorl	%eax, %eax
+	movl	$CONFIG_SYS_CAR_ADDR, %edi
+	movl	$CONFIG_SYS_CAR_SIZE, %ecx
+	shrl	$2, %ecx			/* we are writing longs */
+	rep	stosl
+
+	/*
+	 * Done - We should now have CONFIG_SYS_CAR_SIZE bytes of
+	 * Cache-As-RAM
+	 */
+	jmp	car_init_ret
diff --git a/arch/x86/cpu/sc520/sc520_pci.c b/arch/x86/cpu/sc520/sc520_pci.c
new file mode 100644
index 0000000..8cd7ffe
--- /dev/null
+++ b/arch/x86/cpu/sc520/sc520_pci.c
@@ -0,0 +1,140 @@
+/*
+ * (C) Copyright 2008-2011
+ * Graeme Russ, <graeme.russ@gmail.com>
+ *
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <pci.h>
+#include <asm/io.h>
+#include <asm/pci.h>
+#include <asm/ic/pci.h>
+#include <asm/ic/sc520.h>
+
+static struct {
+	u8 priority;
+	u16 level_reg;
+	u8 level_bit;
+} sc520_irq[] = {
+	{ SC520_IRQ0,  0, 0x01 },
+	{ SC520_IRQ1,  0, 0x02 },
+	{ SC520_IRQ2,  1, 0x02 },
+	{ SC520_IRQ3,  0, 0x08 },
+	{ SC520_IRQ4,  0, 0x10 },
+	{ SC520_IRQ5,  0, 0x20 },
+	{ SC520_IRQ6,  0, 0x40 },
+	{ SC520_IRQ7,  0, 0x80 },
+
+	{ SC520_IRQ8,  1, 0x01 },
+	{ SC520_IRQ9,  1, 0x02 },
+	{ SC520_IRQ10, 1, 0x04 },
+	{ SC520_IRQ11, 1, 0x08 },
+	{ SC520_IRQ12, 1, 0x10 },
+	{ SC520_IRQ13, 1, 0x20 },
+	{ SC520_IRQ14, 1, 0x40 },
+	{ SC520_IRQ15, 1, 0x80 }
+};
+
+/* The interrupt used for PCI INTA-INTD  */
+int sc520_pci_ints[15] = {
+	-1, -1, -1, -1, -1, -1, -1, -1,
+		-1, -1, -1, -1, -1, -1, -1
+};
+
+/* utility function to configure a pci interrupt */
+int pci_sc520_set_irq(int pci_pin, int irq)
+{
+	int i;
+	u8 tmpb;
+	u16 tmpw;
+
+	debug("set_irq(): map INT%c to IRQ%d\n", pci_pin + 'A', irq);
+
+	if (irq < 0 || irq > 15) {
+		return -1; /* illegal irq */
+	}
+
+	if (pci_pin < 0 || pci_pin > 15) {
+		return -1; /* illegal pci int pin */
+	}
+
+	/* first disable any non-pci interrupt source that use
+	 * this level */
+
+	/* PCI interrupt mapping (A through D)*/
+	for (i=0; i<=3 ;i++) {
+		if (readb(&sc520_mmcr->pci_int_map[i]) == sc520_irq[irq].priority)
+			writeb(SC520_IRQ_DISABLED, &sc520_mmcr->pci_int_map[i]);
+	}
+
+	/* GP IRQ interrupt mapping */
+	for (i=0; i<=10 ;i++) {
+		if (readb(&sc520_mmcr->gp_int_map[i]) == sc520_irq[irq].priority)
+			writeb(SC520_IRQ_DISABLED, &sc520_mmcr->gp_int_map[i]);
+	}
+
+	/* Set the trigger to level */
+	tmpb = readb(&sc520_mmcr->pic_mode[sc520_irq[irq].level_reg]);
+	tmpb |= sc520_irq[irq].level_bit;
+	writeb(tmpb, &sc520_mmcr->pic_mode[sc520_irq[irq].level_reg]);
+
+
+	if (pci_pin < 4) {
+		/* PCI INTA-INTD */
+		/* route the interrupt */
+		writeb(sc520_irq[irq].priority, &sc520_mmcr->pci_int_map[pci_pin]);
+	} else {
+		/* GPIRQ0-GPIRQ10 used for additional PCI INTS */
+		writeb(sc520_irq[irq].priority, &sc520_mmcr->gp_int_map[pci_pin - 4]);
+
+		/* also set the polarity in this case */
+		tmpw = readw(&sc520_mmcr->intpinpol);
+		tmpw |= (1 << (pci_pin-4));
+		writew(tmpw, &sc520_mmcr->intpinpol);
+	}
+
+	/* register the pin */
+	sc520_pci_ints[pci_pin] = irq;
+
+
+	return 0; /* OK */
+}
+
+void pci_sc520_init(struct pci_controller *hose)
+{
+	hose->first_busno = 0;
+	hose->last_busno = 0xff;
+	hose->region_count = pci_set_regions(hose);
+
+	pci_setup_type1(hose,
+			SC520_REG_ADDR,
+			SC520_REG_DATA);
+
+	pci_register_hose(hose);
+
+	hose->last_busno = pci_hose_scan(hose);
+
+	/* enable target memory acceses on host brige */
+	pci_write_config_word(0, PCI_COMMAND,
+			      PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
+}
diff --git a/arch/x86/cpu/sc520/sc520_sdram.c b/arch/x86/cpu/sc520/sc520_sdram.c
new file mode 100644
index 0000000..f3623f5
--- /dev/null
+++ b/arch/x86/cpu/sc520/sc520_sdram.c
@@ -0,0 +1,532 @@
+/*
+ * (C) Copyright 2010,2011
+ * Graeme Russ, <graeme.russ@gmail.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/processor-flags.h>
+#include <asm/ic/sc520.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+struct sc520_sdram_info {
+	u8 banks;
+	u8 columns;
+	u8 rows;
+	u8 size;
+};
+
+static void sc520_sizemem(void);
+static void sc520_set_dram_timing(void);
+static void sc520_set_dram_refresh_rate(void);
+static void sc520_enable_dram_refresh(void);
+static void sc520_enable_sdram(void);
+#if CONFIG_SYS_SDRAM_ECC_ENABLE
+static void sc520_enable_ecc(void)
+#endif
+
+int dram_init_f(void)
+{
+	sc520_sizemem();
+	sc520_set_dram_timing();
+	sc520_set_dram_refresh_rate();
+	sc520_enable_dram_refresh();
+	sc520_enable_sdram();
+#if CONFIG_SYS_SDRAM_ECC_ENABLE
+	sc520_enable_ecc();
+#endif
+
+	return 0;
+}
+
+static inline void sc520_dummy_write(void)
+{
+	writew(0x0000, CACHELINESZ);
+}
+static inline void sc520_issue_sdram_op_mode_select(u8 command)
+{
+	writeb(command, &sc520_mmcr->drcctl);
+	sc520_dummy_write();
+}
+
+static inline int check_long(u32 test_long)
+{
+	u8 i;
+	u8 tmp_byte = (u8)(test_long & 0x000000ff);
+
+	for (i = 1; i < 4; i++) {
+		if ((u8)((test_long >> (i * 8)) & 0x000000ff) != tmp_byte)
+				return -1;
+	}
+
+	return 0;
+}
+
+static inline int write_and_test(u32 data, u32 address)
+{
+	writel(data, address);
+	if (readl(address) == data)
+		return 0; /* Good */
+	else
+		return -1; /* Bad */
+}
+
+static void sc520_enable_sdram(void)
+{
+	u32 par_config;
+
+	/* Enable Writes, Caching and Code Execution to SDRAM */
+	par_config = readl(&sc520_mmcr->par[3]);
+	par_config &= ~(SC520_PAR_EXEC_DIS |
+			SC520_PAR_CACHE_DIS |
+			SC520_PAR_WRITE_DIS);
+	writel(par_config, &sc520_mmcr->par[3]);
+
+	par_config = readl(&sc520_mmcr->par[4]);
+	par_config &= ~(SC520_PAR_EXEC_DIS |
+			SC520_PAR_CACHE_DIS |
+			SC520_PAR_WRITE_DIS);
+	writel(par_config, &sc520_mmcr->par[4]);
+}
+
+static void sc520_set_dram_timing(void)
+{
+	u8 drctmctl = 0x00;
+
+#if defined CONFIG_SYS_SDRAM_DRCTMCTL
+	/* just have your hardware designer _GIVE_ you what you need here! */
+	drctmctl = CONFIG_SYS_SDRAM_DRCTMCTL;
+#else
+	switch (CONFIG_SYS_SDRAM_RAS_CAS_DELAY) {
+	case 2:
+		break;
+	case 3:
+		drctmctl |= 0x01;
+		break;
+	case 4:
+	default:
+		drctmctl |= 0x02;
+		break;
+	}
+
+	switch (CONFIG_SYS_SDRAM_PRECHARGE_DELAY) {
+	case 2:
+		break;
+	case 3:
+		drctmctl |= 0x04;
+		break;
+	case 4:
+	default:
+		drctmctl |= 0x08;
+		break;
+
+	case 6:
+		drctmctl |= 0x0c;
+		break;
+	}
+
+	switch (CONFIG_SYS_SDRAM_CAS_LATENCY) {
+	case 2:
+		break;
+	case 3:
+	default:
+		drctmctl |= 0x10;
+		break;
+	}
+#endif
+	writeb(drctmctl, &sc520_mmcr->drctmctl);
+
+	/* Issue load mode register command */
+	sc520_issue_sdram_op_mode_select(0x03);
+}
+
+static void sc520_set_dram_refresh_rate(void)
+{
+	u8 drctl;
+
+	drctl = readb(&sc520_mmcr->drcctl);
+	drctl &= 0xcf;
+
+	switch (CONFIG_SYS_SDRAM_REFRESH_RATE) {
+	case 78:
+		break;
+	case 156:
+	default:
+		drctl |= 0x10;
+		break;
+	case 312:
+		drctl |= 0x20;
+		break;
+	case 624:
+		drctl |= 0x30;
+		break;
+	}
+
+	writeb(drctl, &sc520_mmcr->drcctl);
+}
+
+static void sc520_enable_dram_refresh(void)
+{
+	u8 drctl;
+
+	drctl = readb(&sc520_mmcr->drcctl);
+	drctl &= 0x30; /* keep refresh rate */
+	drctl |= 0x08; /* enable refresh, normal mode */
+
+	writeb(drctl, &sc520_mmcr->drcctl);
+}
+
+static void sc520_get_bank_info(int bank, struct sc520_sdram_info *bank_info)
+{
+	u32 col_data;
+	u32 row_data;
+
+	u32 drcbendadr;
+	u16 drccfg;
+
+	u8 banks = 0x00;
+	u8 columns = 0x00;
+	u8 rows = 0x00;
+
+	bank_info->banks = 0x00;
+	bank_info->columns = 0x00;
+	bank_info->rows = 0x00;
+	bank_info->size = 0x00;
+
+	if ((bank < 0) || (bank > 3)) {
+		printf("Bad Bank ID\n");
+		return;
+	}
+
+	/* Save configuration */
+	drcbendadr = readl(&sc520_mmcr->drcbendadr);
+	drccfg = readw(&sc520_mmcr->drccfg);
+
+	/* Setup SDRAM Bank to largest possible size */
+	writew(0x000b << (bank * 4), &sc520_mmcr->drccfg);
+
+	/* Set ending address for this bank */
+	writel(0x000000ff << (bank * 8), &sc520_mmcr->drcbendadr);
+
+	/* write col 11 wrap adr */
+	if (write_and_test(COL11_DATA, COL11_ADR) != 0)
+		goto restore_and_exit;
+
+	/* write col 10 wrap adr */
+	if (write_and_test(COL10_DATA, COL10_ADR) != 0)
+		goto restore_and_exit;
+
+	/* write col 9 wrap adr */
+	if (write_and_test(COL09_DATA, COL09_ADR) != 0)
+		goto restore_and_exit;
+
+	/* write col 8 wrap adr */
+	if (write_and_test(COL08_DATA, COL08_ADR) != 0)
+		goto restore_and_exit;
+
+	col_data = readl(COL11_ADR);
+
+	/* All four bytes in the read long must be the same */
+	if (check_long(col_data) < 0)
+		goto restore_and_exit;
+
+	if ((col_data >= COL08_DATA) && (col_data <= COL11_DATA))
+		columns = (u8)(col_data & 0x000000ff);
+	else
+		goto restore_and_exit;
+
+	/* write row 14 wrap adr */
+	if (write_and_test(ROW14_DATA, ROW14_ADR) != 0)
+		goto restore_and_exit;
+
+	/* write row 13 wrap adr */
+	if (write_and_test(ROW13_DATA, ROW13_ADR) != 0)
+		goto restore_and_exit;
+
+	/* write row 12 wrap adr */
+	if (write_and_test(ROW12_DATA, ROW12_ADR) != 0)
+		goto restore_and_exit;
+
+	/* write row 11 wrap adr */
+	if (write_and_test(ROW11_DATA, ROW11_ADR) != 0)
+		goto restore_and_exit;
+
+	if (write_and_test(ROW10_DATA, ROW10_ADR) != 0)
+		goto restore_and_exit;
+
+	/*
+	 * read data @ row 12 wrap adr to determine number of banks,
+	 * and read data @ row 14 wrap adr to determine number of rows.
+	 * if data @ row 12 wrap adr is not AA, 11 or 12 we have bad RAM.
+	 * if data @ row 12 wrap == AA, we only have 2 banks, NOT 4
+	 * if data @ row 12 wrap == 11 or 12, we have 4 banks,
+	 */
+	row_data = readl(ROW12_ADR);
+
+	/* All four bytes in the read long must be the same */
+	if (check_long(row_data) != 0)
+		goto restore_and_exit;
+
+	switch (row_data) {
+	case ROW10_DATA:
+		banks = 2;
+		break;
+
+	case ROW11_DATA:
+	case ROW12_DATA:
+		banks = 4;
+		break;
+
+	default:
+		goto restore_and_exit;
+	}
+
+	row_data = readl(ROW14_ADR);
+
+	/* All four bytes in the read long must be the same */
+	if (check_long(row_data) != 0)
+		goto restore_and_exit;
+
+	switch (row_data) {
+	case ROW11_DATA:
+	case ROW12_DATA:
+	case ROW13_DATA:
+	case ROW14_DATA:
+		rows = (u8)(row_data & 0x000000ff);
+		break;
+
+	default:
+		goto restore_and_exit;
+	}
+
+	bank_info->banks = banks;
+	bank_info->columns = columns;
+	bank_info->rows = rows;
+
+	if ((bank_info->banks != 0) &&
+	    (bank_info->columns != 0) &&
+	    (bank_info->rows != 0)) {
+		bank_info->size = bank_info->rows;
+		bank_info->size >>= (11 - bank_info->columns);
+		bank_info->size++;
+	}
+
+restore_and_exit:
+	/* Restore configuration */
+	writel(drcbendadr, &sc520_mmcr->drcbendadr);
+	writew(drccfg, &sc520_mmcr->drccfg);
+}
+
+static void sc520_setup_sizemem(void)
+{
+	u8 i;
+
+	/* Disable write buffer */
+	writeb(0x00, &sc520_mmcr->dbctl);
+
+	/* Disable ECC */
+	writeb(0x00, &sc520_mmcr->eccctl);
+
+	/* Set slowest SDRAM timing */
+	writeb(0x1e, &sc520_mmcr->drctmctl);
+
+	/* Issue a NOP to all SDRAM banks */
+	sc520_issue_sdram_op_mode_select(0x01);
+
+	/* Delay for 100 microseconds */
+	udelay(100);
+
+	/* Issue 'All Banks Precharge' command */
+	sc520_issue_sdram_op_mode_select(0x02);
+
+	/* Issue 2 'Auto Refresh Enable' command */
+	sc520_issue_sdram_op_mode_select(0x04);
+	sc520_dummy_write();
+
+	/* Issue 'Load Mode Register' command */
+	sc520_issue_sdram_op_mode_select(0x03);
+
+	/* Issue 8 more 'Auto Refresh Enable' commands */
+	sc520_issue_sdram_op_mode_select(0x04);
+	for (i = 0; i < 7; i++)
+		sc520_dummy_write();
+
+	/* Set control register to 'Normal Mode' */
+	writeb(0x00, &sc520_mmcr->drcctl);
+}
+
+static void sc520_sizemem(void)
+{
+	struct sc520_sdram_info sdram_info[4];
+	u8 bank_config = 0x00;
+	u8 end_addr = 0x00;
+	u16 drccfg = 0x0000;
+	u32 drcbendadr = 0x00000000;
+	u8 i;
+
+	/* Use PARs to disable caching of maximum allowable 256MB SDRAM */
+	writel(SC520_SDRAM1_PAR | SC520_PAR_CACHE_DIS, &sc520_mmcr->par[3]);
+	writel(SC520_SDRAM2_PAR | SC520_PAR_CACHE_DIS, &sc520_mmcr->par[4]);
+
+	sc520_setup_sizemem();
+
+	gd->ram_size = 0;
+
+	/* Size each SDRAM bank */
+	for (i = 0; i <= 3; i++) {
+		sc520_get_bank_info(i, &sdram_info[i]);
+
+		if (sdram_info[i].banks != 0) {
+			/* Update Configuration register */
+			bank_config = sdram_info[i].columns - 8;
+
+			if (sdram_info[i].banks == 4)
+				bank_config |= 0x08;
+
+			drccfg |= bank_config << (i * 4);
+
+			/* Update End Address register */
+			end_addr += sdram_info[i].size;
+			drcbendadr |= (end_addr | 0x80) << (i * 8);
+
+			gd->ram_size += sdram_info[i].size << 22;
+		}
+
+		/* Issue 'All Banks Precharge' command */
+		sc520_issue_sdram_op_mode_select(0x02);
+
+		/* Set control register to 'Normal Mode' */
+		writeb(0x00, &sc520_mmcr->drcctl);
+	}
+
+	writel(drcbendadr, &sc520_mmcr->drcbendadr);
+	writew(drccfg, &sc520_mmcr->drccfg);
+
+	/* Clear PARs preventing caching of SDRAM */
+	writel(0x00000000, &sc520_mmcr->par[3]);
+	writel(0x00000000, &sc520_mmcr->par[4]);
+}
+
+#if CONFIG_SYS_SDRAM_ECC_ENABLE
+static void sc520_enable_ecc(void)
+
+	/* A nominal memory test: just a byte at each address line */
+	movl	%eax, %ecx
+	shrl	$0x1, %ecx
+	movl	$0x1, %edi
+memtest0:
+	movb	$0xa5, (%edi)
+	cmpb	$0xa5, (%edi)
+	jne	out
+	shrl	$0x1, %ecx
+	andl	%ecx, %ecx
+	jz	set_ecc
+	shll	$0x1, %edi
+	jmp	memtest0
+
+set_ecc:
+	/* clear all ram with a memset */
+	movl	%eax, %ecx
+	xorl	%esi, %esi
+	xorl	%edi, %edi
+	xorl	%eax, %eax
+	shrl	$0x2, %ecx
+	cld
+	rep	stosl
+
+	/* enable read, write buffers */
+	movb	$0x11, %al
+	movl	$DBCTL, %edi
+	movb	%al, (%edi)
+
+	/* enable NMI mapping for ECC */
+	movl	$ECCINT, %edi
+	movb	$0x10, %al
+	movb	%al, (%edi)
+
+	/* Turn on ECC */
+	movl	$ECCCTL, %edi
+	movb	$0x05, %al
+	movb	%al,(%edi)
+
+out:
+	jmp	init_ecc_ret
+}
+#endif
+
+int dram_init(void)
+{
+	ulong dram_ctrl;
+	ulong dram_present = 0x00000000;
+
+	/*
+	 * We read-back the configuration of the dram
+	 * controller that the assembly code wrote
+	 */
+	dram_ctrl = readl(&sc520_mmcr->drcbendadr);
+
+	gd->bd->bi_dram[0].start = 0;
+	if (dram_ctrl & 0x80) {
+		/* bank 0 enabled */
+		gd->bd->bi_dram[1].start = (dram_ctrl & 0x7f) << 22;
+		dram_present = gd->bd->bi_dram[1].start;
+		gd->bd->bi_dram[0].size = gd->bd->bi_dram[1].start;
+	} else {
+		gd->bd->bi_dram[0].size = 0;
+		gd->bd->bi_dram[1].start = gd->bd->bi_dram[0].start;
+	}
+
+	if (dram_ctrl & 0x8000) {
+		/* bank 1 enabled */
+		gd->bd->bi_dram[2].start = (dram_ctrl & 0x7f00) << 14;
+		dram_present = gd->bd->bi_dram[2].start;
+		gd->bd->bi_dram[1].size = gd->bd->bi_dram[2].start -
+				gd->bd->bi_dram[1].start;
+	} else {
+		gd->bd->bi_dram[1].size = 0;
+		gd->bd->bi_dram[2].start = gd->bd->bi_dram[1].start;
+	}
+
+	if (dram_ctrl & 0x800000) {
+		/* bank 2 enabled */
+		gd->bd->bi_dram[3].start = (dram_ctrl & 0x7f0000) << 6;
+		dram_present = gd->bd->bi_dram[3].start;
+		gd->bd->bi_dram[2].size = gd->bd->bi_dram[3].start -
+				gd->bd->bi_dram[2].start;
+	} else {
+		gd->bd->bi_dram[2].size = 0;
+		gd->bd->bi_dram[3].start = gd->bd->bi_dram[2].start;
+	}
+
+	if (dram_ctrl & 0x80000000) {
+		/* bank 3 enabled */
+		dram_present  = (dram_ctrl & 0x7f000000) >> 2;
+		gd->bd->bi_dram[3].size = dram_present -
+				gd->bd->bi_dram[3].start;
+	} else {
+		gd->bd->bi_dram[3].size = 0;
+	}
+
+	gd->ram_size = dram_present;
+
+	return 0;
+}
diff --git a/arch/x86/cpu/sc520/sc520_ssi.c b/arch/x86/cpu/sc520/sc520_ssi.c
new file mode 100644
index 0000000..ac58d25
--- /dev/null
+++ b/arch/x86/cpu/sc520/sc520_ssi.c
@@ -0,0 +1,92 @@
+/*
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/ic/ssi.h>
+#include <asm/ic/sc520.h>
+
+int ssi_set_interface(int freq, int lsb_first, int inv_clock, int inv_phase)
+{
+	u8 temp=0;
+
+	if (freq >= 8192) {
+		temp |= CTL_CLK_SEL_4;
+	} else if (freq >= 4096) {
+		temp |= CTL_CLK_SEL_8;
+	} else if (freq >= 2048) {
+		temp |= CTL_CLK_SEL_16;
+	} else if (freq >= 1024) {
+		temp |= CTL_CLK_SEL_32;
+	} else if (freq >= 512) {
+		temp |= CTL_CLK_SEL_64;
+	} else if (freq >= 256) {
+		temp |= CTL_CLK_SEL_128;
+	} else if (freq >= 128) {
+		temp |= CTL_CLK_SEL_256;
+	} else {
+		temp |= CTL_CLK_SEL_512;
+	}
+
+	if (!lsb_first) {
+		temp |= MSBF_ENB;
+	}
+
+	if (inv_clock) {
+		temp |= CLK_INV_ENB;
+	}
+
+	if (inv_phase) {
+		temp |= PHS_INV_ENB;
+	}
+
+	writeb(temp, &sc520_mmcr->ssictl);
+
+	return 0;
+}
+
+u8 ssi_txrx_byte(u8 data)
+{
+	writeb(data, &sc520_mmcr->ssixmit);
+	while (readb(&sc520_mmcr->ssista) & SSISTA_BSY);
+	writeb(SSICMD_CMD_SEL_XMITRCV, &sc520_mmcr->ssicmd);
+	while (readb(&sc520_mmcr->ssista) & SSISTA_BSY);
+
+	return readb(&sc520_mmcr->ssircv);
+}
+
+void ssi_tx_byte(u8 data)
+{
+	writeb(data, &sc520_mmcr->ssixmit);
+	while (readb(&sc520_mmcr->ssista) & SSISTA_BSY);
+	writeb(SSICMD_CMD_SEL_XMIT, &sc520_mmcr->ssicmd);
+}
+
+u8 ssi_rx_byte(void)
+{
+	while (readb(&sc520_mmcr->ssista) & SSISTA_BSY);
+	writeb(SSICMD_CMD_SEL_RCV, &sc520_mmcr->ssicmd);
+	while (readb(&sc520_mmcr->ssista) & SSISTA_BSY);
+
+	return readb(&sc520_mmcr->ssircv);
+}
diff --git a/arch/x86/cpu/sc520/sc520_timer.c b/arch/x86/cpu/sc520/sc520_timer.c
new file mode 100644
index 0000000..1bcfe67
--- /dev/null
+++ b/arch/x86/cpu/sc520/sc520_timer.c
@@ -0,0 +1,90 @@
+/*
+ * (C) Copyright 2008-2011
+ * Graeme Russ, <graeme.russ@gmail.com>
+ *
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/interrupt.h>
+#include <asm/ic/sc520.h>
+
+void sc520_timer_isr(void)
+{
+	/* Ack the GP Timer Interrupt */
+	writeb(0x02, &sc520_mmcr->gptmrsta);
+}
+
+int timer_init(void)
+{
+	/* Register the SC520 specific timer interrupt handler */
+	register_timer_isr (sc520_timer_isr);
+
+	/* Install interrupt handler for GP Timer 1 */
+	irq_install_handler (0, timer_isr, NULL);
+
+	/* Map GP Timer 1 to Master PIC IR0  */
+	writeb(0x01, &sc520_mmcr->gp_tmr_int_map[1]);
+
+	/* Disable GP Timers 1 & 2 - Allow configuration writes */
+	writew(0x4000, &sc520_mmcr->gptmr1ctl);
+	writew(0x4000, &sc520_mmcr->gptmr2ctl);
+
+	/* Reset GP Timers 1 & 2 */
+	writew(0x0000, &sc520_mmcr->gptmr1cnt);
+	writew(0x0000, &sc520_mmcr->gptmr2cnt);
+
+	/* Setup GP Timer 2 as a 100kHz (10us) prescaler */
+	writew(83, &sc520_mmcr->gptmr2maxcmpa);
+	writew(0xc001, &sc520_mmcr->gptmr2ctl);
+
+	/* Setup GP Timer 1 as a 1000 Hz (1ms) interrupt generator */
+	writew(100, &sc520_mmcr->gptmr1maxcmpa);
+	writew(0xe009, &sc520_mmcr->gptmr1ctl);
+
+	unmask_irq (0);
+
+	/* Clear the GP Timer 1 status register to get the show rolling*/
+	writeb(0x02, &sc520_mmcr->gptmrsta);
+
+	return 0;
+}
+
+/* Allow boards to override udelay implementation */
+void __udelay(unsigned long usec)
+	__attribute__((weak, alias("sc520_udelay")));
+
+void sc520_udelay(unsigned long usec)
+{
+	int m = 0;
+	long u;
+	long temp;
+
+	temp = readw(&sc520_mmcr->swtmrmilli);
+	temp = readw(&sc520_mmcr->swtmrmicro);
+
+	do {
+		m += readw(&sc520_mmcr->swtmrmilli);
+		u = readw(&sc520_mmcr->swtmrmicro) + (m * 1000);
+	} while (u < usec);
+}
diff --git a/arch/x86/cpu/start.S b/arch/x86/cpu/start.S
new file mode 100644
index 0000000..7ccc076
--- /dev/null
+++ b/arch/x86/cpu/start.S
@@ -0,0 +1,132 @@
+/*
+ *  U-boot - x86 Startup Code
+ *
+ * (C) Copyright 2008-2011
+ * Graeme Russ, <graeme.russ@gmail.com>
+ *
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+#include <version.h>
+#include <asm/global_data.h>
+#include <asm/processor-flags.h>
+
+.section .text
+.code32
+.globl _start
+.type _start, @function
+.globl _x86boot_start
+_x86boot_start:
+	/*
+	 * This is the fail safe 32-bit bootstrap entry point. The
+	 * following code is not executed from a cold-reset (actually, a
+	 * lot of it is, but from real-mode after cold reset. It is
+	 * repeated here to put the board into a state as close to cold
+	 * reset as necessary)
+	 */
+	cli
+	cld
+
+	/* Turn of cache (this might require a 486-class CPU) */
+	movl	%cr0, %eax
+	orl	$(X86_CR0_NW | X86_CR0_CD), %eax
+	movl	%eax, %cr0
+	wbinvd
+
+	/* Tell 32-bit code it is being entered from an in-RAM copy */
+	movw	$GD_FLG_WARM_BOOT, %bx
+_start:
+	/* This is the 32-bit cold-reset entry point */
+
+	/* Load the segement registes to match the gdt loaded in start16.S */
+	movl	$0x18, %eax
+	movw	%ax, %fs
+	movw	%ax, %ds
+	movw	%ax, %gs
+	movw	%ax, %es
+	movw	%ax, %ss
+
+	/* Clear the interupt vectors */
+	lidt	blank_idt_ptr
+
+	/* Early platform init (setup gpio, etc ) */
+	jmp	early_board_init
+.globl early_board_init_ret
+early_board_init_ret:
+
+	/* Initialise Cache-As-RAM */
+	jmp	car_init
+.globl car_init_ret
+car_init_ret:
+	/*
+	 * We now have CONFIG_SYS_CAR_SIZE bytes of Cache-As-RAM (or SRAM,
+	 * or fully initialised SDRAM - we really don't care which)
+	 * starting at CONFIG_SYS_CAR_ADDR to be used as a temporary stack
+	 */
+	movl	$CONFIG_SYS_INIT_SP_ADDR, %esp
+
+	/* Set parameter to board_init_f() to boot flags */
+	xorl	%eax, %eax
+	movw	%bx, %ax
+
+	/* Enter, U-boot! */
+	call	board_init_f
+
+	/* indicate (lack of) progress */
+	movw	$0x85, %ax
+	jmp	die
+
+.globl relocate_code
+.type relocate_code, @function
+relocate_code:
+	/*
+	 * SDRAM has been initialised, U-Boot code has been copied into
+	 * RAM, BSS has been cleared and relocation adjustments have been
+	 * made. It is now time to jump into the in-RAM copy of U-Boot
+	 *
+	 * %eax = Address of top of stack
+	 * %edx = Address of Global Data
+	 * %ecx = Base address of in-RAM copy of U-Boot
+	 */
+
+	/* Setup stack in RAM */
+	movl	%eax, %esp
+
+	/* Setup call address of in-RAM copy of board_init_r() */
+	movl	$board_init_r, %ebp
+	addl	(GD_RELOC_OFF * 4)(%edx), %ebp
+
+	/* Setup parameters to board_init_r() */
+	movl	%edx, %eax
+	movl	%ecx, %edx
+
+	/* Jump to in-RAM copy of board_init_r() */
+	call	*%ebp
+
+die:	hlt
+	jmp	die
+	hlt
+
+blank_idt_ptr:
+	.word	0		/* limit */
+	.long	0		/* base */
diff --git a/arch/x86/cpu/start16.S b/arch/x86/cpu/start16.S
new file mode 100644
index 0000000..f1b9d0a
--- /dev/null
+++ b/arch/x86/cpu/start16.S
@@ -0,0 +1,113 @@
+/*
+ *  U-boot - x86 Startup Code
+ *
+ * (C) Copyright 2008-2011
+ * Graeme Russ, <graeme.russ@gmail.com>
+ *
+ * (C) Copyright 2002,2003
+ * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <asm/global_data.h>
+#include <asm/processor-flags.h>
+
+#define BOOT_SEG	0xffff0000	/* linear segment of boot code */
+#define a32		.byte 0x67;
+#define o32		.byte 0x66;
+
+.section .start16, "ax"
+.code16
+.globl start16
+start16:
+	/* Set the Cold Boot / Hard Reset flag */
+	movl	$GD_FLG_COLD_BOOT, %ebx
+
+	/*
+	 * First we let the BSP do some early initialization
+	 * this code have to map the flash to its final position
+	 */
+	jmp	board_init16
+.globl board_init16_ret
+board_init16_ret:
+
+	/* Turn of cache (this might require a 486-class CPU) */
+	movl	%cr0, %eax
+	orl	$(X86_CR0_NW & X86_CR0_CD), %eax
+	movl	%eax, %cr0
+	wbinvd
+
+	/* load the temporary Global Descriptor Table */
+o32 cs	lidt	idt_ptr
+o32 cs	lgdt	gdt_ptr
+
+	/* Now, we enter protected mode */
+	movl	%cr0, %eax
+	orl	$X86_CR0_PE, %eax
+	movl	%eax, %cr0
+
+	/* Flush the prefetch queue */
+	jmp	ff
+ff:
+	/* Finally jump to the 32bit initialization code */
+	movw	$code32start, %ax
+	movw	%ax, %bp
+o32 cs	ljmp	*(%bp)
+
+	/* 48-bit far pointer */
+code32start:
+	.long	_start		/* offset */
+	.word	0x10		/* segment */
+
+idt_ptr:
+	.word	0		/* limit */
+	.long	0		/* base */
+
+/*
+ * The following Global Descriptor Table is just enough to get us into
+ * 'Flat Protected Mode' - It will be discarded as soon as the final
+ * GDT is setup in a safe location in RAM
+ */
+gdt_ptr:
+	.word	0x20		/* limit (32 bytes = 4 GDT entries) */
+	.long	BOOT_SEG + gdt	/* base */
+
+	/* The GDT table ...
+	 *
+	 *	 Selector	Type
+	 *	 0x00		NULL
+	 *	 0x08		Unused
+	 *	 0x10		32bit code
+	 *	 0x18		32bit data/stack
+	 */
+
+gdt:
+	.word	0, 0, 0, 0	/* NULL  */
+	.word	0, 0, 0, 0	/* unused */
+
+	.word	0xFFFF		/* 4Gb - (0x100000*0x1000 = 4Gb) */
+	.word	0		/* base address = 0 */
+	.word	0x9B00		/* code read/exec */
+	.word	0x00CF		/* granularity = 4096, 386 (+5th nibble of limit) */
+
+	.word	0xFFFF		/* 4Gb - (0x100000*0x1000 = 4Gb) */
+	.word	0x0		/* base address = 0 */
+	.word	0x9300		/* data read/write */
+	.word	0x00CF		/* granularity = 4096, 386 (+5th nibble of limit) */
diff --git a/arch/x86/cpu/u-boot.lds b/arch/x86/cpu/u-boot.lds
new file mode 100644
index 0000000..5597422
--- /dev/null
+++ b/arch/x86/cpu/u-boot.lds
@@ -0,0 +1,97 @@
+/*
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, daniel@omicron.se.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
+OUTPUT_ARCH(i386)
+ENTRY(_start)
+
+SECTIONS
+{
+	. = CONFIG_SYS_TEXT_BASE;	/* Location of bootcode in flash */
+	__text_start = .;
+	.text  : { *(.text*); }
+
+	. = ALIGN(4);
+	__u_boot_cmd_start = .;
+	.u_boot_cmd : { *(.u_boot_cmd) }
+	. = ALIGN(4);
+	__u_boot_cmd_end = .;
+
+	. = ALIGN(4);
+	.rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) }
+
+	. = ALIGN(4);
+	.data : { *(.data*) }
+
+	. = ALIGN(4);
+	.dynsym : { *(.dynsym*) }
+
+	. = ALIGN(4);
+	.hash : { *(.hash*) }
+
+	. = ALIGN(4);
+	.got : { *(.got*) }
+
+	. = ALIGN(4);
+	__data_end = .;
+
+	. = ALIGN(4);
+	__bss_start = ABSOLUTE(.);
+	.bss (NOLOAD) : { *(.bss) }
+	. = ALIGN(4);
+	__bss_end = ABSOLUTE(.);
+
+	. = ALIGN(4);
+	__rel_dyn_start = .;
+	.rel.dyn : { *(.rel.dyn) }
+	__rel_dyn_end = .;
+
+	/DISCARD/ : { *(.dynstr*) }
+	/DISCARD/ : { *(.dynamic*) }
+	/DISCARD/ : { *(.plt*) }
+	/DISCARD/ : { *(.interp*) }
+	/DISCARD/ : { *(.gnu*) }
+
+	/* 16bit realmode trampoline code */
+	.realmode REALMODE_BASE : AT ( LOADADDR(.rel.dyn) + SIZEOF(.rel.dyn) ) { KEEP(*(.realmode)) }
+
+	__realmode_start = LOADADDR(.realmode);
+	__realmode_size = SIZEOF(.realmode);
+
+	/* 16bit BIOS emulation code (just enough to boot Linux) */
+	.bios 0 : AT ( LOADADDR(.realmode) + SIZEOF(.realmode) ) { KEEP(*(.bios)) }
+
+	__bios_start = LOADADDR(.bios);
+	__bios_size = SIZEOF(.bios);
+
+	/*
+	 * The following expressions place the 16-bit Real-Mode code and
+	 * Reset Vector at the end of the Flash ROM
+	 */
+	. = START_16;
+	.start16 : AT (CONFIG_SYS_TEXT_BASE + (CONFIG_SYS_MONITOR_LEN - RESET_SEG_SIZE + START_16)) { KEEP(*(.start16)); }
+
+	. = RESET_VEC_LOC;
+	.resetvec : AT (CONFIG_SYS_TEXT_BASE + (CONFIG_SYS_MONITOR_LEN - RESET_SEG_SIZE + RESET_VEC_LOC)) { KEEP(*(.resetvec)); }
+}
diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h
new file mode 100644
index 0000000..c7a38f2
--- /dev/null
+++ b/arch/x86/include/asm/bitops.h
@@ -0,0 +1,384 @@
+#ifndef _I386_BITOPS_H
+#define _I386_BITOPS_H
+
+/*
+ * Copyright 1992, Linus Torvalds.
+ */
+
+
+/*
+ * These have to be done with inline assembly: that way the bit-setting
+ * is guaranteed to be atomic. All bit operations return 0 if the bit
+ * was cleared before the operation and != 0 if it was not.
+ *
+ * bit 0 is the LSB of addr; bit 32 is the LSB of (addr+1).
+ */
+
+#ifdef CONFIG_SMP
+#define LOCK_PREFIX "lock ; "
+#else
+#define LOCK_PREFIX ""
+#endif
+
+#define ADDR (*(volatile long *) addr)
+
+/**
+ * set_bit - Atomically set a bit in memory
+ * @nr: the bit to set
+ * @addr: the address to start counting from
+ *
+ * This function is atomic and may not be reordered.  See __set_bit()
+ * if you do not require the atomic guarantees.
+ * Note that @nr may be almost arbitrarily large; this function is not
+ * restricted to acting on a single-word quantity.
+ */
+static __inline__ void set_bit(int nr, volatile void * addr)
+{
+	__asm__ __volatile__( LOCK_PREFIX
+		"btsl %1,%0"
+		:"=m" (ADDR)
+		:"Ir" (nr));
+}
+
+/**
+ * __set_bit - Set a bit in memory
+ * @nr: the bit to set
+ * @addr: the address to start counting from
+ *
+ * Unlike set_bit(), this function is non-atomic and may be reordered.
+ * If it's called on the same region of memory simultaneously, the effect
+ * may be that only one operation succeeds.
+ */
+static __inline__ void __set_bit(int nr, volatile void * addr)
+{
+	__asm__(
+		"btsl %1,%0"
+		:"=m" (ADDR)
+		:"Ir" (nr));
+}
+
+/**
+ * clear_bit - Clears a bit in memory
+ * @nr: Bit to clear
+ * @addr: Address to start counting from
+ *
+ * clear_bit() is atomic and may not be reordered.  However, it does
+ * not contain a memory barrier, so if it is used for locking purposes,
+ * you should call smp_mb__before_clear_bit() and/or smp_mb__after_clear_bit()
+ * in order to ensure changes are visible on other processors.
+ */
+static __inline__ void clear_bit(int nr, volatile void * addr)
+{
+	__asm__ __volatile__( LOCK_PREFIX
+		"btrl %1,%0"
+		:"=m" (ADDR)
+		:"Ir" (nr));
+}
+#define smp_mb__before_clear_bit()	barrier()
+#define smp_mb__after_clear_bit()	barrier()
+
+/**
+ * __change_bit - Toggle a bit in memory
+ * @nr: the bit to set
+ * @addr: the address to start counting from
+ *
+ * Unlike change_bit(), this function is non-atomic and may be reordered.
+ * If it's called on the same region of memory simultaneously, the effect
+ * may be that only one operation succeeds.
+ */
+static __inline__ void __change_bit(int nr, volatile void * addr)
+{
+	__asm__ __volatile__(
+		"btcl %1,%0"
+		:"=m" (ADDR)
+		:"Ir" (nr));
+}
+
+/**
+ * change_bit - Toggle a bit in memory
+ * @nr: Bit to clear
+ * @addr: Address to start counting from
+ *
+ * change_bit() is atomic and may not be reordered.
+ * Note that @nr may be almost arbitrarily large; this function is not
+ * restricted to acting on a single-word quantity.
+ */
+static __inline__ void change_bit(int nr, volatile void * addr)
+{
+	__asm__ __volatile__( LOCK_PREFIX
+		"btcl %1,%0"
+		:"=m" (ADDR)
+		:"Ir" (nr));
+}
+
+/**
+ * test_and_set_bit - Set a bit and return its old value
+ * @nr: Bit to set
+ * @addr: Address to count from
+ *
+ * This operation is atomic and cannot be reordered.
+ * It also implies a memory barrier.
+ */
+static __inline__ int test_and_set_bit(int nr, volatile void * addr)
+{
+	int oldbit;
+
+	__asm__ __volatile__( LOCK_PREFIX
+		"btsl %2,%1\n\tsbbl %0,%0"
+		:"=r" (oldbit),"=m" (ADDR)
+		:"Ir" (nr) : "memory");
+	return oldbit;
+}
+
+/**
+ * __test_and_set_bit - Set a bit and return its old value
+ * @nr: Bit to set
+ * @addr: Address to count from
+ *
+ * This operation is non-atomic and can be reordered.
+ * If two examples of this operation race, one can appear to succeed
+ * but actually fail.  You must protect multiple accesses with a lock.
+ */
+static __inline__ int __test_and_set_bit(int nr, volatile void * addr)
+{
+	int oldbit;
+
+	__asm__(
+		"btsl %2,%1\n\tsbbl %0,%0"
+		:"=r" (oldbit),"=m" (ADDR)
+		:"Ir" (nr));
+	return oldbit;
+}
+
+/**
+ * test_and_clear_bit - Clear a bit and return its old value
+ * @nr: Bit to set
+ * @addr: Address to count from
+ *
+ * This operation is atomic and cannot be reordered.
+ * It also implies a memory barrier.
+ */
+static __inline__ int test_and_clear_bit(int nr, volatile void * addr)
+{
+	int oldbit;
+
+	__asm__ __volatile__( LOCK_PREFIX
+		"btrl %2,%1\n\tsbbl %0,%0"
+		:"=r" (oldbit),"=m" (ADDR)
+		:"Ir" (nr) : "memory");
+	return oldbit;
+}
+
+/**
+ * __test_and_clear_bit - Clear a bit and return its old value
+ * @nr: Bit to set
+ * @addr: Address to count from
+ *
+ * This operation is non-atomic and can be reordered.
+ * If two examples of this operation race, one can appear to succeed
+ * but actually fail.  You must protect multiple accesses with a lock.
+ */
+static __inline__ int __test_and_clear_bit(int nr, volatile void * addr)
+{
+	int oldbit;
+
+	__asm__(
+		"btrl %2,%1\n\tsbbl %0,%0"
+		:"=r" (oldbit),"=m" (ADDR)
+		:"Ir" (nr));
+	return oldbit;
+}
+
+/* WARNING: non atomic and it can be reordered! */
+static __inline__ int __test_and_change_bit(int nr, volatile void * addr)
+{
+	int oldbit;
+
+	__asm__ __volatile__(
+		"btcl %2,%1\n\tsbbl %0,%0"
+		:"=r" (oldbit),"=m" (ADDR)
+		:"Ir" (nr) : "memory");
+	return oldbit;
+}
+
+/**
+ * test_and_change_bit - Change a bit and return its new value
+ * @nr: Bit to set
+ * @addr: Address to count from
+ *
+ * This operation is atomic and cannot be reordered.
+ * It also implies a memory barrier.
+ */
+static __inline__ int test_and_change_bit(int nr, volatile void * addr)
+{
+	int oldbit;
+
+	__asm__ __volatile__( LOCK_PREFIX
+		"btcl %2,%1\n\tsbbl %0,%0"
+		:"=r" (oldbit),"=m" (ADDR)
+		:"Ir" (nr) : "memory");
+	return oldbit;
+}
+
+#if 0 /* Fool kernel-doc since it doesn't do macros yet */
+/**
+ * test_bit - Determine whether a bit is set
+ * @nr: bit number to test
+ * @addr: Address to start counting from
+ */
+static int test_bit(int nr, const volatile void * addr);
+#endif
+
+static __inline__ int constant_test_bit(int nr, const volatile void * addr)
+{
+	return ((1UL << (nr & 31)) & (((const volatile unsigned int *) addr)[nr >> 5])) != 0;
+}
+
+static __inline__ int variable_test_bit(int nr, volatile void * addr)
+{
+	int oldbit;
+
+	__asm__ __volatile__(
+		"btl %2,%1\n\tsbbl %0,%0"
+		:"=r" (oldbit)
+		:"m" (ADDR),"Ir" (nr));
+	return oldbit;
+}
+
+#define test_bit(nr,addr) \
+(__builtin_constant_p(nr) ? \
+ constant_test_bit((nr),(addr)) : \
+ variable_test_bit((nr),(addr)))
+
+/**
+ * find_first_zero_bit - find the first zero bit in a memory region
+ * @addr: The address to start the search at
+ * @size: The maximum size to search
+ *
+ * Returns the bit-number of the first zero bit, not the number of the byte
+ * containing a bit.
+ */
+static __inline__ int find_first_zero_bit(void * addr, unsigned size)
+{
+	int d0, d1, d2;
+	int res;
+
+	if (!size)
+		return 0;
+	/* This looks at memory. Mark it volatile to tell gcc not to move it around */
+	__asm__ __volatile__(
+		"movl $-1,%%eax\n\t"
+		"xorl %%edx,%%edx\n\t"
+		"repe; scasl\n\t"
+		"je 1f\n\t"
+		"xorl -4(%%edi),%%eax\n\t"
+		"subl $4,%%edi\n\t"
+		"bsfl %%eax,%%edx\n"
+		"1:\tsubl %%ebx,%%edi\n\t"
+		"shll $3,%%edi\n\t"
+		"addl %%edi,%%edx"
+		:"=d" (res), "=&c" (d0), "=&D" (d1), "=&a" (d2)
+		:"1" ((size + 31) >> 5), "2" (addr), "b" (addr));
+	return res;
+}
+
+/**
+ * find_next_zero_bit - find the first zero bit in a memory region
+ * @addr: The address to base the search on
+ * @offset: The bitnumber to start searching at
+ * @size: The maximum size to search
+ */
+static __inline__ int find_next_zero_bit (void * addr, int size, int offset)
+{
+	unsigned long * p = ((unsigned long *) addr) + (offset >> 5);
+	int set = 0, bit = offset & 31, res;
+
+	if (bit) {
+		/*
+		 * Look for zero in first byte
+		 */
+		__asm__("bsfl %1,%0\n\t"
+			"jne 1f\n\t"
+			"movl $32, %0\n"
+			"1:"
+			: "=r" (set)
+			: "r" (~(*p >> bit)));
+		if (set < (32 - bit))
+			return set + offset;
+		set = 32 - bit;
+		p++;
+	}
+	/*
+	 * No zero yet, search remaining full bytes for a zero
+	 */
+	res = find_first_zero_bit (p, size - 32 * (p - (unsigned long *) addr));
+	return (offset + set + res);
+}
+
+/**
+ * ffz - find first zero in word.
+ * @word: The word to search
+ *
+ * Undefined if no zero exists, so code should check against ~0UL first.
+ */
+static __inline__ unsigned long ffz(unsigned long word)
+{
+	__asm__("bsfl %1,%0"
+		:"=r" (word)
+		:"r" (~word));
+	return word;
+}
+
+#ifdef __KERNEL__
+
+/**
+ * ffs - find first bit set
+ * @x: the word to search
+ *
+ * This is defined the same way as
+ * the libc and compiler builtin ffs routines, therefore
+ * differs in spirit from the above ffz (man ffs).
+ */
+static __inline__ int ffs(int x)
+{
+	int r;
+
+	__asm__("bsfl %1,%0\n\t"
+		"jnz 1f\n\t"
+		"movl $-1,%0\n"
+		"1:" : "=r" (r) : "g" (x));
+	return r+1;
+}
+#define PLATFORM_FFS
+
+/**
+ * hweightN - returns the hamming weight of a N-bit word
+ * @x: the word to weigh
+ *
+ * The Hamming Weight of a number is the total number of bits set in it.
+ */
+
+#define hweight32(x) generic_hweight32(x)
+#define hweight16(x) generic_hweight16(x)
+#define hweight8(x) generic_hweight8(x)
+
+#endif /* __KERNEL__ */
+
+#ifdef __KERNEL__
+
+#define ext2_set_bit                 __test_and_set_bit
+#define ext2_clear_bit               __test_and_clear_bit
+#define ext2_test_bit                test_bit
+#define ext2_find_first_zero_bit     find_first_zero_bit
+#define ext2_find_next_zero_bit      find_next_zero_bit
+
+/* Bitmap functions for the minix filesystem.  */
+#define minix_test_and_set_bit(nr,addr) __test_and_set_bit(nr,addr)
+#define minix_set_bit(nr,addr) __set_bit(nr,addr)
+#define minix_test_and_clear_bit(nr,addr) __test_and_clear_bit(nr,addr)
+#define minix_test_bit(nr,addr) test_bit(nr,addr)
+#define minix_find_first_zero_bit(addr,size) find_first_zero_bit(addr,size)
+
+#endif /* __KERNEL__ */
+
+#endif /* _I386_BITOPS_H */
diff --git a/arch/x86/include/asm/bootparam.h b/arch/x86/include/asm/bootparam.h
new file mode 100644
index 0000000..1400951
--- /dev/null
+++ b/arch/x86/include/asm/bootparam.h
@@ -0,0 +1,120 @@
+#ifndef _ASM_X86_BOOTPARAM_H
+#define _ASM_X86_BOOTPARAM_H
+
+#include <linux/types.h>
+#include <linux/screen_info.h>
+#include <linux/apm_bios.h>
+#include <linux/edd.h>
+#include <asm/e820.h>
+#include <asm/ist.h>
+#include <asm/video/edid.h>
+
+/* setup data types */
+#define SETUP_NONE			0
+#define SETUP_E820_EXT			1
+
+/* extensible setup data list node */
+struct setup_data {
+	__u64 next;
+	__u32 type;
+	__u32 len;
+	__u8 data[0];
+};
+
+struct setup_header {
+	__u8	setup_sects;
+	__u16	root_flags;
+	__u32	syssize;
+	__u16	ram_size;
+#define RAMDISK_IMAGE_START_MASK	0x07FF
+#define RAMDISK_PROMPT_FLAG		0x8000
+#define RAMDISK_LOAD_FLAG		0x4000
+	__u16	vid_mode;
+	__u16	root_dev;
+	__u16	boot_flag;
+	__u16	jump;
+	__u32	header;
+	__u16	version;
+	__u32	realmode_swtch;
+	__u16	start_sys;
+	__u16	kernel_version;
+	__u8	type_of_loader;
+	__u8	loadflags;
+#define LOADED_HIGH	(1<<0)
+#define QUIET_FLAG	(1<<5)
+#define KEEP_SEGMENTS	(1<<6)
+#define CAN_USE_HEAP	(1<<7)
+	__u16	setup_move_size;
+	__u32	code32_start;
+	__u32	ramdisk_image;
+	__u32	ramdisk_size;
+	__u32	bootsect_kludge;
+	__u16	heap_end_ptr;
+	__u8	ext_loader_ver;
+	__u8	ext_loader_type;
+	__u32	cmd_line_ptr;
+	__u32	initrd_addr_max;
+	__u32	kernel_alignment;
+	__u8	relocatable_kernel;
+	__u8	_pad2[3];
+	__u32	cmdline_size;
+	__u32	hardware_subarch;
+	__u64	hardware_subarch_data;
+	__u32	payload_offset;
+	__u32	payload_length;
+	__u64	setup_data;
+} __attribute__((packed));
+
+struct sys_desc_table {
+	__u16 length;
+	__u8  table[14];
+};
+
+struct efi_info {
+	__u32 efi_loader_signature;
+	__u32 efi_systab;
+	__u32 efi_memdesc_size;
+	__u32 efi_memdesc_version;
+	__u32 efi_memmap;
+	__u32 efi_memmap_size;
+	__u32 efi_systab_hi;
+	__u32 efi_memmap_hi;
+};
+
+/* The so-called "zeropage" */
+struct boot_params {
+	struct screen_info screen_info;			/* 0x000 */
+	struct apm_bios_info apm_bios_info;		/* 0x040 */
+	__u8  _pad2[4];					/* 0x054 */
+	__u64  tboot_addr;				/* 0x058 */
+	struct ist_info ist_info;			/* 0x060 */
+	__u8  _pad3[16];				/* 0x070 */
+	__u8  hd0_info[16];	/* obsolete! */		/* 0x080 */
+	__u8  hd1_info[16];	/* obsolete! */		/* 0x090 */
+	struct sys_desc_table sys_desc_table;		/* 0x0a0 */
+	__u8  _pad4[144];				/* 0x0b0 */
+	struct edid_info edid_info;			/* 0x140 */
+	struct efi_info efi_info;			/* 0x1c0 */
+	__u32 alt_mem_k;				/* 0x1e0 */
+	__u32 scratch;		/* Scratch field! */	/* 0x1e4 */
+	__u8  e820_entries;				/* 0x1e8 */
+	__u8  eddbuf_entries;				/* 0x1e9 */
+	__u8  edd_mbr_sig_buf_entries;			/* 0x1ea */
+	__u8  _pad6[6];					/* 0x1eb */
+	struct setup_header hdr;    /* setup header */	/* 0x1f1 */
+	__u8  _pad7[0x290-0x1f1-sizeof(struct setup_header)];
+	__u32 edd_mbr_sig_buffer[EDD_MBR_SIG_MAX];	/* 0x290 */
+	struct e820entry e820_map[E820MAX];		/* 0x2d0 */
+	__u8  _pad8[48];				/* 0xcd0 */
+	struct edd_info eddbuf[EDDMAXNR];		/* 0xd00 */
+	__u8  _pad9[276];				/* 0xeec */
+} __attribute__((packed));
+
+enum {
+	X86_SUBARCH_PC = 0,
+	X86_SUBARCH_LGUEST,
+	X86_SUBARCH_XEN,
+	X86_SUBARCH_MRST,
+	X86_NR_SUBARCHS,
+};
+#endif /* _ASM_X86_BOOTPARAM_H */
diff --git a/arch/x86/include/asm/byteorder.h b/arch/x86/include/asm/byteorder.h
new file mode 100644
index 0000000..7dfeb8b
--- /dev/null
+++ b/arch/x86/include/asm/byteorder.h
@@ -0,0 +1,43 @@
+#ifndef _I386_BYTEORDER_H
+#define _I386_BYTEORDER_H
+
+#include <asm/types.h>
+
+#ifdef __GNUC__
+
+
+static __inline__ __u32 ___arch__swab32(__u32 x)
+{
+#ifdef CONFIG_X86_BSWAP
+	__asm__("bswap %0" : "=r" (x) : "0" (x));
+#else
+	__asm__("xchgb %b0,%h0\n\t"	/* swap lower bytes	*/
+		"rorl $16,%0\n\t"	/* swap words		*/
+		"xchgb %b0,%h0"		/* swap higher bytes	*/
+		:"=q" (x)
+		: "0" (x));
+#endif
+	return x;
+}
+
+static __inline__ __u16 ___arch__swab16(__u16 x)
+{
+	__asm__("xchgb %b0,%h0"		/* swap bytes		*/ \
+		: "=q" (x) \
+		:  "0" (x)); \
+		return x;
+}
+
+#define __arch__swab32(x) ___arch__swab32(x)
+#define __arch__swab16(x) ___arch__swab16(x)
+
+#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
+#  define __BYTEORDER_HAS_U64__
+#  define __SWAB_64_THRU_32__
+#endif
+
+#endif /* __GNUC__ */
+
+#include <linux/byteorder/little_endian.h>
+
+#endif /* _I386_BYTEORDER_H */
diff --git a/arch/x86/include/asm/config.h b/arch/x86/include/asm/config.h
new file mode 100644
index 0000000..049c44e
--- /dev/null
+++ b/arch/x86/include/asm/config.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright 2009 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+
+#ifndef _ASM_CONFIG_H_
+#define _ASM_CONFIG_H_
+
+#endif
diff --git a/arch/x86/include/asm/e820.h b/arch/x86/include/asm/e820.h
new file mode 100644
index 0000000..d155ce9
--- /dev/null
+++ b/arch/x86/include/asm/e820.h
@@ -0,0 +1,155 @@
+#ifndef _ASM_X86_E820_H
+#define _ASM_X86_E820_H
+#define E820MAP	0x2d0		/* our map */
+#define E820MAX	128		/* number of entries in E820MAP */
+
+/*
+ * Legacy E820 BIOS limits us to 128 (E820MAX) nodes due to the
+ * constrained space in the zeropage.  If we have more nodes than
+ * that, and if we've booted off EFI firmware, then the EFI tables
+ * passed us from the EFI firmware can list more nodes.  Size our
+ * internal memory map tables to have room for these additional
+ * nodes, based on up to three entries per node for which the
+ * kernel was built: MAX_NUMNODES == (1 << CONFIG_NODES_SHIFT),
+ * plus E820MAX, allowing space for the possible duplicate E820
+ * entries that might need room in the same arrays, prior to the
+ * call to sanitize_e820_map() to remove duplicates.  The allowance
+ * of three memory map entries per node is "enough" entries for
+ * the initial hardware platform motivating this mechanism to make
+ * use of additional EFI map entries.  Future platforms may want
+ * to allow more than three entries per node or otherwise refine
+ * this size.
+ */
+
+/*
+ * Odd: 'make headers_check' complains about numa.h if I try
+ * to collapse the next two #ifdef lines to a single line:
+ *	#if defined(__KERNEL__) && defined(CONFIG_EFI)
+ */
+#ifdef __KERNEL__
+#ifdef CONFIG_EFI
+#include <linux/numa.h>
+#define E820_X_MAX (E820MAX + 3 * MAX_NUMNODES)
+#else	/* ! CONFIG_EFI */
+#define E820_X_MAX E820MAX
+#endif
+#else	/* ! __KERNEL__ */
+#define E820_X_MAX E820MAX
+#endif
+
+#define E820NR	0x1e8		/* # entries in E820MAP */
+
+#define E820_RAM	1
+#define E820_RESERVED	2
+#define E820_ACPI	3
+#define E820_NVS	4
+#define E820_UNUSABLE	5
+
+/* reserved RAM used by kernel itself */
+#define E820_RESERVED_KERN        128
+
+#ifndef __ASSEMBLY__
+#include <linux/types.h>
+struct e820entry {
+	__u64 addr;	/* start of memory segment */
+	__u64 size;	/* size of memory segment */
+	__u32 type;	/* type of memory segment */
+} __attribute__((packed));
+
+struct e820map {
+	__u32 nr_map;
+	struct e820entry map[E820_X_MAX];
+};
+
+#define ISA_START_ADDRESS	0xa0000
+#define ISA_END_ADDRESS		0x100000
+
+#define BIOS_BEGIN		0x000a0000
+#define BIOS_END		0x00100000
+
+#ifdef __KERNEL__
+/* see comment in arch/x86/kernel/e820.c */
+extern struct e820map e820;
+extern struct e820map e820_saved;
+
+extern unsigned long pci_mem_start;
+extern int e820_any_mapped(u64 start, u64 end, unsigned type);
+extern int e820_all_mapped(u64 start, u64 end, unsigned type);
+extern void e820_add_region(u64 start, u64 size, int type);
+extern void e820_print_map(char *who);
+extern int
+sanitize_e820_map(struct e820entry *biosmap, int max_nr_map, u32 *pnr_map);
+extern u64 e820_update_range(u64 start, u64 size, unsigned old_type,
+			       unsigned new_type);
+extern u64 e820_remove_range(u64 start, u64 size, unsigned old_type,
+			     int checktype);
+extern void update_e820(void);
+extern void e820_setup_gap(void);
+extern int e820_search_gap(unsigned long *gapstart, unsigned long *gapsize,
+			unsigned long start_addr, unsigned long long end_addr);
+struct setup_data;
+extern void parse_e820_ext(struct setup_data *data, unsigned long pa_data);
+
+#if defined(CONFIG_X86_64) || \
+	(defined(CONFIG_X86_32) && defined(CONFIG_HIBERNATION))
+extern void e820_mark_nosave_regions(unsigned long limit_pfn);
+#else
+static inline void e820_mark_nosave_regions(unsigned long limit_pfn)
+{
+}
+#endif
+
+#ifdef CONFIG_MEMTEST
+extern void early_memtest(unsigned long start, unsigned long end);
+#else
+static inline void early_memtest(unsigned long start, unsigned long end)
+{
+}
+#endif
+
+extern unsigned long end_user_pfn;
+
+extern u64 find_e820_area(u64 start, u64 end, u64 size, u64 align);
+extern u64 find_e820_area_size(u64 start, u64 *sizep, u64 align);
+extern void reserve_early(u64 start, u64 end, char *name);
+extern void reserve_early_overlap_ok(u64 start, u64 end, char *name);
+extern void free_early(u64 start, u64 end);
+extern void early_res_to_bootmem(u64 start, u64 end);
+extern u64 early_reserve_e820(u64 startt, u64 sizet, u64 align);
+
+extern unsigned long e820_end_of_ram_pfn(void);
+extern unsigned long e820_end_of_low_ram_pfn(void);
+extern int e820_find_active_region(const struct e820entry *ei,
+				  unsigned long start_pfn,
+				  unsigned long last_pfn,
+				  unsigned long *ei_startpfn,
+				  unsigned long *ei_endpfn);
+extern void e820_register_active_regions(int nid, unsigned long start_pfn,
+					 unsigned long end_pfn);
+extern u64 e820_hole_size(u64 start, u64 end);
+extern void finish_e820_parsing(void);
+extern void e820_reserve_resources(void);
+extern void e820_reserve_resources_late(void);
+extern void setup_memory_map(void);
+extern char *default_machine_specific_memory_setup(void);
+
+/*
+ * Returns true iff the specified range [s,e) is completely contained inside
+ * the ISA region.
+ */
+/*
+static inline bool is_ISA_range(u64 s, u64 e)
+{
+	return s >= ISA_START_ADDRESS && e <= ISA_END_ADDRESS;
+}
+*/
+#endif /* __KERNEL__ */
+#endif /* __ASSEMBLY__ */
+
+#ifdef __KERNEL__
+/* #include <linux/ioport.h> */
+
+#define HIGH_MEMORY	(1024*1024)
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_X86_E820_H */
diff --git a/arch/x86/include/asm/errno.h b/arch/x86/include/asm/errno.h
new file mode 100644
index 0000000..4c82b50
--- /dev/null
+++ b/arch/x86/include/asm/errno.h
@@ -0,0 +1 @@
+#include <asm-generic/errno.h>
diff --git a/arch/x86/include/asm/global_data.h b/arch/x86/include/asm/global_data.h
new file mode 100644
index 0000000..f8a16d6
--- /dev/null
+++ b/arch/x86/include/asm/global_data.h
@@ -0,0 +1,102 @@
+/*
+ * (C) Copyright 2002-2010
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef	__ASM_GBL_DATA_H
+#define __ASM_GBL_DATA_H
+/*
+ * The following data structure is placed in some memory wich is
+ * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
+ * some locked parts of the data cache) to allow for a minimum set of
+ * global variables during system initialization (until we have set
+ * up the memory controller so that we can use RAM).
+ *
+ * Keep it *SMALL* and remember to set GENERATED_GBL_DATA_SIZE > sizeof(gd_t)
+ */
+
+#ifndef __ASSEMBLY__
+
+typedef	struct global_data {
+	bd_t		*bd;
+	unsigned long	flags;
+	unsigned long	baudrate;
+	unsigned long	have_console;	/* serial_init() was called */
+	unsigned long	reloc_off;	/* Relocation Offset */
+	unsigned long	load_off;	/* Load Offset */
+	unsigned long	env_addr;	/* Address  of Environment struct */
+	unsigned long	env_valid;	/* Checksum of Environment valid? */
+	unsigned long	cpu_clk;	/* CPU clock in Hz!		*/
+	unsigned long	bus_clk;
+	unsigned long	relocaddr;	/* Start address of U-Boot in RAM */
+	unsigned long	start_addr_sp;	/* start_addr_stackpointer */
+	phys_size_t	ram_size;	/* RAM size */
+	unsigned long	reset_status;	/* reset status register at boot */
+	void		**jt;		/* jump table */
+	char		env_buf[32];	/* buffer for getenv() before reloc. */
+} gd_t;
+
+extern gd_t *gd;
+
+#endif
+
+/* Word Offsets into Global Data - MUST match struct gd_t */
+#define GD_BD		0
+#define GD_FLAGS	1
+#define GD_BAUDRATE	2
+#define GD_HAVE_CONSOLE	3
+#define GD_RELOC_OFF	4
+#define GD_LOAD_OFF	5
+#define GD_ENV_ADDR	6
+#define GD_ENV_VALID	7
+#define GD_CPU_CLK	8
+#define GD_BUS_CLK	9
+#define GD_RELOC_ADDR	10
+#define GD_START_ADDR_SP	11
+#define GD_RAM_SIZE	12
+#define GD_RESET_STATUS	13
+#define GD_JT		14
+
+#define GD_SIZE		15
+
+/*
+ * Global Data Flags
+ */
+#define	GD_FLG_RELOC		0x00001	/* Code was relocated to RAM		*/
+#define	GD_FLG_DEVINIT		0x00002	/* Devices have been initialized	*/
+#define	GD_FLG_SILENT		0x00004	/* Silent mode				*/
+#define	GD_FLG_POSTFAIL		0x00008	/* Critical POST test failed		*/
+#define	GD_FLG_POSTSTOP		0x00010	/* POST seqeunce aborted		*/
+#define	GD_FLG_LOGINIT		0x00020	/* Log Buffer has been initialized	*/
+#define GD_FLG_DISABLE_CONSOLE	0x00040	/* Disable console (in & out)		*/
+#define GD_FLG_ENV_READY	0x00080	/* Environment imported into hash table	*/
+#define GD_FLG_COLD_BOOT	0x00100	/* Cold Boot */
+#define GD_FLG_WARM_BOOT	0x00200	/* Warm Boot */
+
+#if 0
+#define DECLARE_GLOBAL_DATA_PTR
+#else
+#define XTRN_DECLARE_GLOBAL_DATA_PTR    extern
+#define DECLARE_GLOBAL_DATA_PTR     XTRN_DECLARE_GLOBAL_DATA_PTR \
+gd_t *gd
+#endif
+
+#endif /* __ASM_GBL_DATA_H */
diff --git a/arch/x86/include/asm/i8254.h b/arch/x86/include/asm/i8254.h
new file mode 100644
index 0000000..aafdfb8
--- /dev/null
+++ b/arch/x86/include/asm/i8254.h
@@ -0,0 +1,55 @@
+/*
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, daniel@omicron.se.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+
+/* i8254.h Intel 8254 PIT registers */
+
+
+#ifndef _ASMI386_I8254_H_
+#define _ASMI386_I8954_H_       1
+
+
+#define PIT_T0		0x00		/* PIT channel 0 count/status */
+#define PIT_T1		0x01		/* PIT channel 1 count/status */
+#define PIT_T2		0x02		/* PIT channel 2 count/status */
+#define PIT_COMMAND	0x03		/* PIT mode control, latch and read back */
+
+/* PIT Command Register Bit Definitions */
+
+#define PIT_CMD_CTR0	0x00		/* Select PIT counter 0 */
+#define PIT_CMD_CTR1	0x40		/* Select PIT counter 1 */
+#define PIT_CMD_CTR2	0x80		/* Select PIT counter 2 */
+
+#define PIT_CMD_LATCH	0x00		/* Counter Latch Command */
+#define PIT_CMD_LOW	0x10		/* Access counter bits 7-0 */
+#define PIT_CMD_HIGH	0x20		/* Access counter bits 15-8 */
+#define PIT_CMD_BOTH	0x30		/* Access counter bits 15-0 in two accesses */
+
+#define PIT_CMD_MODE0	0x00		/* Select mode 0 */
+#define PIT_CMD_MODE1	0x02		/* Select mode 1 */
+#define PIT_CMD_MODE2	0x04		/* Select mode 2 */
+#define PIT_CMD_MODE3	0x06		/* Select mode 3 */
+#define PIT_CMD_MODE4	0x08		/* Select mode 4 */
+#define PIT_CMD_MODE5	0x0A		/* Select mode 5 */
+
+#endif
diff --git a/arch/x86/include/asm/i8259.h b/arch/x86/include/asm/i8259.h
new file mode 100644
index 0000000..774d7a3
--- /dev/null
+++ b/arch/x86/include/asm/i8259.h
@@ -0,0 +1,88 @@
+/*
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, daniel@omicron.se.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/* i8259.h i8259 PIC Registers */
+
+#ifndef _ASMI386_I8259_H_
+#define _ASMI386_I8959_H_       1
+
+
+/* PIC I/O mapped registers */
+
+#define IRR		0x0	/* Interrupt Request Register */
+#define ISR		0x0	/* In-Service Register */
+#define ICW1		0x0	/* Initialization Control Word 1 */
+#define OCW2		0x0	/* Operation Control Word 2 */
+#define OCW3		0x0	/* Operation Control Word 3 */
+#define ICW2		0x1	/* Initialization Control Word 2 */
+#define ICW3		0x1	/* Initialization Control Word 3 */
+#define ICW4		0x1	/* Initialization Control Word 4 */
+#define IMR		0x1	/* Interrupt Mask Register */
+
+/* bits for IRR, IMR, ISR and ICW3 */
+#define	IR7		0x80	/* IR7 */
+#define	IR6		0x40	/* IR6 */
+#define	IR5		0x20	/* IR5 */
+#define	IR4		0x10	/* IR4 */
+#define	IR3		0x08	/* IR3 */
+#define	IR2		0x04	/* IR2 */
+#define	IR1		0x02	/* IR1 */
+#define	IR0		0x01	/* IR0 */
+
+/* bits for SEOI */
+#define	SEOI_IR7	0x07	/* IR7 */
+#define	SEOI_IR6	0x06	/* IR6 */
+#define	SEOI_IR5	0x05	/* IR5 */
+#define	SEOI_IR4	0x04	/* IR4 */
+#define	SEOI_IR3	0x03	/* IR3 */
+#define	SEOI_IR2	0x02	/* IR2 */
+#define	SEOI_IR1	0x01	/* IR1 */
+#define	SEOI_IR0	0x00	/* IR0 */
+
+/* OCW2 bits */
+#define OCW2_RCLR	0x00	/* Rotate/clear */
+#define OCW2_NEOI	0x20	/* Non specific EOI */
+#define OCW2_NOP	0x40	/* NOP */
+#define OCW2_SEOI	0x60	/* Specific EOI */
+#define OCW2_RSET	0x80	/* Rotate/set */
+#define OCW2_REOI	0xA0	/* Rotate on non specific EOI */
+#define OCW2_PSET	0xC0	/* Priority Set Command */
+#define OCW2_RSEOI	0xE0	/* Rotate on specific EOI */
+
+/* ICW1 bits */
+#define ICW1_SEL	0x10	/* Select ICW1 */
+#define ICW1_LTIM	0x08	/* Level-Triggered Interrupt Mode */
+#define ICW1_ADI	0x04	/* Address Interval */
+#define ICW1_SNGL	0x02	/* Single PIC */
+#define ICW1_EICW4	0x01	/* Expect initilization ICW4 */
+
+/* ICW2 is the starting vector number */
+
+/* ICW2 is bit-mask of present slaves for a master device,
+ * or the slave ID for a slave device */
+
+/* ICW4 bits */
+#define	ICW4_AEOI	0x02	/* Automatic EOI Mode */
+#define ICW4_PM		0x01	/* Microprocessor Mode */
+
+#endif
diff --git a/arch/x86/include/asm/ibmpc.h b/arch/x86/include/asm/ibmpc.h
new file mode 100644
index 0000000..e35cbd8
--- /dev/null
+++ b/arch/x86/include/asm/ibmpc.h
@@ -0,0 +1,47 @@
+/*
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, daniel@omicron.se
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __ASM_IBMPC_H_
+#define __ASM_IBMPC_H_ 1
+
+/* misc ports in an ibm compatible pc */
+
+#define MASTER_PIC      0x20
+#define PIT_BASE	0x40
+#define KBDDATA         0x60
+#define SYSCTLB         0x62
+#define KBDCMD          0x64
+#define SYSCTLA         0x92
+#define SLAVE_PIC       0xa0
+
+#if 1
+#define UART0_BASE     0x3f8
+#define UART1_BASE     0x2f8
+#else
+/* FixMe: uarts swapped */
+#define UART0_BASE     0x2f8
+#define UART1_BASE     0x3f8
+#endif
+
+
+#endif
diff --git a/arch/x86/include/asm/ic/pci.h b/arch/x86/include/asm/ic/pci.h
new file mode 100644
index 0000000..2e4376b
--- /dev/null
+++ b/arch/x86/include/asm/ic/pci.h
@@ -0,0 +1,79 @@
+/*
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB <daniel@omicron.se>.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _ASM_IC_SC520_PCI_H_
+#define _ASM_IC_SC520_PCI_H_ 1
+
+/* bus mapping constants (used for PCI core initialization) */																																																 /* bus mapping constants */
+#define SC520_REG_ADDR		0x00000cf8
+#define SC520_REG_DATA		0x00000cfc
+
+#define SC520_ISA_MEM_PHYS	0x00000000
+#define SC520_ISA_MEM_BUS	0x00000000
+#define SC520_ISA_MEM_SIZE	0x01000000
+
+#define SC520_ISA_IO_PHYS	0x00000000
+#define SC520_ISA_IO_BUS	0x00000000
+#define SC520_ISA_IO_SIZE	0x00001000
+
+/* PCI I/O space from 0x1000 to 0xdfff
+ * (make 0xe000-0xfdff available for stuff like PCCard boot) */
+#define SC520_PCI_IO_PHYS	0x00001000
+#define SC520_PCI_IO_BUS	0x00001000
+#define SC520_PCI_IO_SIZE	0x0000d000
+
+/* system memory from 0x00000000 to 0x0fffffff */
+#define	SC520_PCI_MEMORY_PHYS	0x00000000
+#define	SC520_PCI_MEMORY_BUS	0x00000000
+#define SC520_PCI_MEMORY_SIZE	0x10000000
+
+/* PCI bus memory from 0x10000000 to 0x26ffffff
+ * (make 0x27000000 - 0x27ffffff available for stuff like PCCard boot) */
+#define SC520_PCI_MEM_PHYS	0x10000000
+#define SC520_PCI_MEM_BUS	0x10000000
+#define SC520_PCI_MEM_SIZE	0x17000000
+
+/* pin number used for PCI interrupt mappings */
+#define SC520_PCI_INTA 0
+#define SC520_PCI_INTB 1
+#define SC520_PCI_INTC 2
+#define SC520_PCI_INTD 3
+#define SC520_PCI_GPIRQ0 4
+#define SC520_PCI_GPIRQ1 5
+#define SC520_PCI_GPIRQ2 6
+#define SC520_PCI_GPIRQ3 7
+#define SC520_PCI_GPIRQ4 8
+#define SC520_PCI_GPIRQ5 9
+#define SC520_PCI_GPIRQ6 10
+#define SC520_PCI_GPIRQ7 11
+#define SC520_PCI_GPIRQ8 12
+#define SC520_PCI_GPIRQ9 13
+#define SC520_PCI_GPIRQ10 14
+
+extern int sc520_pci_ints[];
+
+void pci_sc520_init(struct pci_controller *hose);
+int pci_set_regions(struct pci_controller *hose);
+int pci_sc520_set_irq(int pci_pin, int irq);
+
+#endif
diff --git a/arch/x86/include/asm/ic/sc520.h b/arch/x86/include/asm/ic/sc520.h
new file mode 100644
index 0000000..956c1c2
--- /dev/null
+++ b/arch/x86/include/asm/ic/sc520.h
@@ -0,0 +1,398 @@
+/*
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB <daniel@omicron.se>.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _ASM_IC_SC520_H_
+#define _ASM_IC_SC520_H_ 1
+
+#ifndef __ASSEMBLY__
+
+void init_sc520(void);
+unsigned long init_sc520_dram(void);
+void sc520_udelay(unsigned long usec);
+
+/* Memory mapped configuration registers */
+typedef struct sc520_mmcr {
+	u16 revid;	/* ElanSC520 microcontroller revision id */
+	u8  cpuctl;	/* am5x86 CPU control  */
+
+	u8  pad_0x003[0x0d];
+
+	u8  drcctl;		/* SDRAM control */
+	u8  pad_0x011[0x01];
+	u8  drctmctl;		/* SDRAM timing control */
+	u8  pad_0x013[0x01];
+	u16 drccfg;		/* SDRAM bank configuration*/
+	u8  pad_0x016[0x02];
+	u32 drcbendadr;		/* SDRAM bank 0-3 ending address*/
+	u8  pad_0x01c[0x04];
+	u8  eccctl;		/* ECC control */
+	u8  eccsta;		/* ECC status */
+	u8  eccckbpos;		/* ECC check bit position */
+	u8  ecccktest;		/* ECC Check Code Test */
+	u32 eccsbadd;		/* ECC single-bit error address */
+	u32 eccmbadd;		/* ECC multi-bit error address */
+
+	u8  pad_0x02c[0x14];
+
+	u8  dbctl;		/* SDRAM buffer control */
+
+	u8  pad_0x041[0x0f];
+
+	u16 bootcsctl;		/* /BOOTCS control */
+	u8  pad_0x052[0x02];
+	u16 romcs1ctl;		/* /ROMCS1 control */
+	u16 romcs2ctl;		/* /ROMCS2 control */
+
+	u8  pad_0x058[0x08];
+
+	u16 hbctl;		/* host bridge control */
+	u16 hbtgtirqctl;	/* host bridge target interrupt control */
+	u16 hbtgtirqsta;	/* host bridge target interrupt status */
+	u16 hbmstirqctl;	/* host bridge target interrupt control */
+	u16 hbmstirqsta;	/* host bridge master interrupt status */
+	u8  pad_0x06a[0x02];
+	u32 mstintadd;		/* host bridge master interrupt address */
+
+	u8  sysarbctl;		/* system arbiter control */
+	u8  pciarbsta;		/* PCI bus arbiter status */
+	u16 sysarbmenb;		/* system arbiter master enable */
+	u32 arbprictl;		/* arbiter priority control */
+
+	u8  pad_0x078[0x08];
+
+	u8  adddecctl;		/* address decode control */
+	u8  pad_0x081[0x01];
+	u16 wpvsta;		/* write-protect violation status */
+	u8  pad_0x084[0x04];
+	u32 par[16];		/* programmable address regions */
+
+	u8  pad_0x0c8[0x0b38];
+
+	u8  gpecho;		/* GP echo mode */
+	u8  gpcsdw;		/* GP chip select data width */
+	u16 gpcsqual;		/* GP chip select qualification */
+	u8  pad_0xc04[0x4];
+	u8  gpcsrt;		/* GP chip select recovery time */
+	u8  gpcspw;		/* GP chip select pulse width */
+	u8  gpcsoff;		/* GP chip select offset */
+	u8  gprdw;		/* GP read pulse width */
+	u8  gprdoff;		/* GP read offset */
+	u8  gpwrw;		/* GP write pulse width */
+	u8  gpwroff;		/* GP write offset */
+	u8  gpalew;		/* GP ale pulse width */
+	u8  gpaleoff;		/* GP ale offset */
+
+	u8  pad_0xc11[0x0f];
+
+	u16 piopfs15_0;		/* PIO15-PIO0 pin function select */
+	u16 piopfs31_16;	/* PIO31-PIO16 pin function select */
+	u8  cspfs;		/* chip select pin function select */
+	u8  pad_0xc25[0x01];
+	u8  clksel;		/* clock select */
+	u8  pad_0xc27[0x01];
+	u16 dsctl;		/* drive strength control */
+	u16 piodir15_0;		/* PIO15-PIO0 direction */
+	u16 piodir31_16;	/* PIO31-PIO16 direction */
+	u8  pad_0xc2e[0x02];
+	u16 piodata15_0	;	/* PIO15-PIO0 data */
+	u16 piodata31_16;	/* PIO31-PIO16 data */
+	u16 pioset15_0;		/* PIO15-PIO0 set */
+	u16 pioset31_16;	/* PIO31-PIO16 set */
+	u16 pioclr15_0;		/* PIO15-PIO0 clear */
+	u16 pioclr31_16;	/* PIO31-PIO16 clear */
+
+	u8  pad_0xc3c[0x24];
+
+	u16 swtmrmilli;		/* software timer millisecond count */
+	u16 swtmrmicro;		/* software timer microsecond count */
+	u8  swtmrcfg;		/* software timer configuration */
+
+	u8  pad_0xc65[0x0b];
+
+	u8  gptmrsta;		/* GP timers status register */
+	u8  pad_0xc71;
+	u16 gptmr0ctl;		/* GP timer 0 mode/control */
+	u16 gptmr0cnt;		/* GP timer 0 count */
+	u16 gptmr0maxcmpa;	/* GP timer 0 maxcount compare A */
+	u16 gptmr0maxcmpb;	/* GP timer 0 maxcount compare B */
+	u16 gptmr1ctl;		/* GP timer 1 mode/control */
+	u16 gptmr1cnt;		/* GP timer 1 count */
+	u16 gptmr1maxcmpa;	/* GP timer 1 maxcount compare A */
+	u16 gptmr1maxcmpb;	/* GP timer 1 maxcount compare B*/
+	u16 gptmr2ctl;		/* GP timer 2 mode/control */
+	u16 gptmr2cnt;		/* GP timer 2 count */
+	u8  pad_0xc86[0x08];
+	u16 gptmr2maxcmpa;	/* GP timer 2 maxcount compare A */
+
+	u8  pad_0xc90[0x20];
+
+	u16 wdtmrctl;		/* watchdog timer control */
+	u16 wdtmrcntl;		/* watchdog timer count low */
+	u16 wdtmrcnth;		/* watchdog timer count high */
+
+	u8  pad_0xcb6[0x0a];
+
+	u8  uart1ctl;		/* UART 1 general control */
+	u8  uart1sta;		/* UART 1 general status */
+	u8  uart1fcrshad;	/* UART 1 FIFO control shadow */
+	u8  pad_0xcc3[0x01];
+	u8  uart2ctl;		/* UART 2 general control */
+	u8  uart2sta;		/* UART 2 general status */
+	u8  uart2fcrshad;	/* UART 2 FIFO control shadow */
+
+	u8  pad_0xcc7[0x09];
+
+	u8  ssictl;		/* SSI control */
+	u8  ssixmit;		/* SSI transmit */
+	u8  ssicmd;		/* SSI command */
+	u8  ssista;		/* SSI status */
+	u8  ssircv;		/* SSI receive */
+
+	u8  pad_0xcd5[0x2b];
+
+	u8  picicr;		/* interrupt control */
+	u8  pad_0xd01[0x01];
+	u8  pic_mode[3];	/* PIC interrupt mode */
+	u8  pad_0xd05[0x03];
+	u16 swint16_1;		/* software interrupt 16-1 control */
+	u8  swint22_17;		/* software interrupt 22-17/NMI control */
+	u8  pad_0xd0b[0x05];
+	u16 intpinpol;		/* interrupt pin polarity */
+	u8  pad_0xd12[0x02];
+	u16 pcihostmap;		/* PCI host bridge interrupt mapping */
+	u8  pad_0xd16[0x02];
+	u16 eccmap;		/* ECC interrupt mapping */
+	u8  gp_tmr_int_map[3];	/* GP timer interrupt mapping */
+	u8  pad_0xd1d[0x03];
+	u8  pit_int_map[3];	/* PIT interrupt mapping */
+	u8  pad_0xd23[0x05];
+	u8  uart_int_map[2];	/* UART interrupt mapping */
+	u8  pad_0xd2a[0x06];
+	u8  pci_int_map[4];	/* PCI interrupt mapping (A through D)*/
+	u8  pad_0xd34[0x0c];
+	u8  dmabcintmap;	/* DMA buffer chaining interrupt mapping */
+	u8  ssimap;		/* SSI interrupt mapping register */
+	u8  wdtmap;		/* watchdog timer interrupt mapping */
+	u8  rtcmap;		/* RTC interrupt mapping register */
+	u8  wpvmap;		/* write-protect interrupt mapping */
+	u8  icemap;		/* AMDebug JTAG Rx/Tx interrupt mapping */
+	u8  ferrmap;		/* floating point error interrupt mapping */
+	u8  pad_0xd47[0x09];
+	u8  gp_int_map[11];	/* GP IRQ interrupt mapping */
+
+	u8  pad_0xd5b[0x15];
+
+	u8  sysinfo;		/* system board information */
+	u8  pad_0xd71[0x01];
+	u8  rescfg;		/* reset configuration */
+	u8  pad_0xd73[0x01];
+	u8  ressta;		/* reset status */
+
+	u8  pad_0xd75[0x0b];
+
+	u8  gpdmactl;		/* GP-DMA Control */
+	u8  gpdmammio;		/* GP-DMA memory-mapped I/O */
+	u16 gpdmaextchmapa;	/* GP-DMA resource channel map a */
+	u16 gpdmaextchmapb;	/* GP-DMA resource channel map b */
+	u8  gp_dma_ext_pg_0;	/* GP-DMA channel extended page 0 */
+	u8  gp_dma_ext_pg_1;	/* GP-DMA channel extended page 0 */
+	u8  gp_dma_ext_pg_2;	/* GP-DMA channel extended page 0 */
+	u8  gp_dma_ext_pg_3;	/* GP-DMA channel extended page 0 */
+	u8  gp_dma_ext_pg_5;	/* GP-DMA channel extended page 0 */
+	u8  gp_dma_ext_pg_6;	/* GP-DMA channel extended page 0 */
+	u8  gp_dma_ext_pg_7;	/* GP-DMA channel extended page 0 */
+	u8  pad_0xd8d[0x03];
+	u8  gpdmaexttc3;	/* GP-DMA channel 3 extender transfer count */
+	u8  gpdmaexttc5;	/* GP-DMA channel 5 extender transfer count */
+	u8  gpdmaexttc6;	/* GP-DMA channel 6 extender transfer count */
+	u8  gpdmaexttc7;	/* GP-DMA channel 7 extender transfer count */
+	u8  pad_0xd94[0x4];
+	u8  gpdmabcctl;		/* buffer chaining control */
+	u8  gpdmabcsta;		/* buffer chaining status */
+	u8  gpdmabsintenb;	/* buffer chaining interrupt enable */
+	u8  gpdmabcval;		/* buffer chaining valid */
+	u8  pad_0xd9c[0x04];
+	u16 gpdmanxtaddl3;	/* GP-DMA channel 3 next address low */
+	u16 gpdmanxtaddh3;	/* GP-DMA channel 3 next address high */
+	u16 gpdmanxtaddl5;	/* GP-DMA channel 5 next address low */
+	u16 gpdmanxtaddh5;	/* GP-DMA channel 5 next address high */
+	u16 gpdmanxtaddl6;	/* GP-DMA channel 6 next address low */
+	u16 gpdmanxtaddh6;	/* GP-DMA channel 6 next address high */
+	u16 gpdmanxtaddl7;	/* GP-DMA channel 7 next address low */
+	u16 gpdmanxtaddh7;	/* GP-DMA channel 7 next address high */
+	u16 gpdmanxttcl3;	/* GP-DMA channel 3 next transfer count low */
+	u16 gpdmanxttch3;	/* GP-DMA channel 3 next transfer count high */
+	u16 gpdmanxttcl5;	/* GP-DMA channel 5 next transfer count low */
+	u16 gpdmanxttch5;	/* GP-DMA channel 5 next transfer count high */
+	u16 gpdmanxttcl6;	/* GP-DMA channel 6 next transfer count low */
+	u16 gpdmanxttch6;	/* GP-DMA channel 6 next transfer count high */
+	u16 gpdmanxttcl7;	/* GP-DMA channel 7 next transfer count low */
+	u16 gpdmanxttch7;	/* GP-DMA channel 7 next transfer count high */
+
+	u8  pad_0xdc0[0x0240];
+} sc520_mmcr_t;
+
+extern sc520_mmcr_t *sc520_mmcr;
+
+#endif
+
+/* Memory Mapped Control Registers (MMCR) Base Address */
+#define SC520_MMCR_BASE		0xfffef000
+
+/* MMCR Addresses (required for assembler code) */
+#define SC520_DRCCTL		(SC520_MMCR_BASE + 0x010)
+#define SC520_DRCTMCTL		(SC520_MMCR_BASE + 0x012)
+#define SC520_DRCCFG		(SC520_MMCR_BASE + 0x014)
+#define SC520_DRCBENDADR	(SC520_MMCR_BASE + 0x018)
+#define SC520_ECCCTL		(SC520_MMCR_BASE + 0x020)
+#define SC520_DBCTL		(SC520_MMCR_BASE + 0x040)
+#define SC520_ECCINT		(SC520_MMCR_BASE + 0xd18)
+
+#define SC520_PAR0		(SC520_MMCR_BASE + 0x088)
+#define SC520_PAR1		(SC520_PAR0 + (0x04 * 1))
+#define SC520_PAR2		(SC520_PAR0 + (0x04 * 2))
+#define SC520_PAR3		(SC520_PAR0 + (0x04 * 3))
+#define SC520_PAR4		(SC520_PAR0 + (0x04 * 4))
+#define SC520_PAR5		(SC520_PAR0 + (0x04 * 5))
+#define SC520_PAR6		(SC520_PAR0 + (0x04 * 6))
+#define SC520_PAR7		(SC520_PAR0 + (0x04 * 7))
+#define SC520_PAR8		(SC520_PAR0 + (0x04 * 8))
+#define SC520_PAR9		(SC520_PAR0 + (0x04 * 9))
+#define SC520_PAR10		(SC520_PAR0 + (0x04 * 10))
+#define SC520_PAR11		(SC520_PAR0 + (0x04 * 11))
+#define SC520_PAR12		(SC520_PAR0 + (0x04 * 12))
+#define SC520_PAR13		(SC520_PAR0 + (0x04 * 13))
+#define SC520_PAR14		(SC520_PAR0 + (0x04 * 14))
+#define SC520_PAR15		(SC520_PAR0 + (0x04 * 15))
+
+/*
+ * PARs for maximum allowable 256MB of SDRAM @ 0x00000000
+ * Two PARs are required due to maximum PAR size of 128MB
+ * These are used in the SDRAM sizing code to disable caching
+ *
+ * 111 0 0 0 1 11111111111 00000000000000 }- 0xe3ffc000
+ * 111 0 0 0 1 11111111111 00100000000000 }- 0xe3ffc800
+ * \ / | | | | \----+----/ \-----+------/
+ *  |  | | | |      |            +---------- Start at 0x00000000
+ *  |  | | | |      |                                 0x08000000
+ *  |  | | | |      +----------------------- 128MB Region Size
+ *  |  | | | |                               ((2047 + 1) * 64kB)
+ *  |  | | | +------------------------------ 64kB Page Size
+ *  |  | | +-------------------------------- Writes Enabled
+ *  |  | +---------------------------------- Caching Enabled
+ *  |  +------------------------------------ Execution Enabled
+ *  +--------------------------------------- SDRAM
+ */
+#define SC520_SDRAM1_PAR	0xe3ffc000
+#define SC520_SDRAM2_PAR	0xe3ffc800
+
+#define SC520_PAR_WRITE_DIS	0x04000000
+#define SC520_PAR_CACHE_DIS	0x08000000
+#define SC520_PAR_EXEC_DIS	0x10000000
+
+/*
+ * Programmable Address Regions to cover 256MB SDRAM (Maximum supported)
+ * required for DRAM sizing code
+ */
+
+/* MMCR Register bits (not all of them :) ) */
+
+/* SSI Stuff */
+#define CTL_CLK_SEL_4		0x00	/* Nominal Bit Rate = 8 MHz    */
+#define CTL_CLK_SEL_8		0x10	/* Nominal Bit Rate = 4 MHz    */
+#define CTL_CLK_SEL_16		0x20	/* Nominal Bit Rate = 2 MHz    */
+#define CTL_CLK_SEL_32		0x30	/* Nominal Bit Rate = 1 MHz    */
+#define CTL_CLK_SEL_64		0x40	/* Nominal Bit Rate = 512 KHz  */
+#define CTL_CLK_SEL_128		0x50	/* Nominal Bit Rate = 256 KHz  */
+#define CTL_CLK_SEL_256		0x60	/* Nominal Bit Rate = 128 KHz  */
+#define CTL_CLK_SEL_512		0x70	/* Nominal Bit Rate = 64 KHz   */
+
+#define TC_INT_ENB		0x08	/* Transaction Complete Interrupt Enable */
+#define PHS_INV_ENB		0x04	/* SSI Inverted Phase Mode Enable */
+#define CLK_INV_ENB		0x02	/* SSI Inverted Clock Mode Enable */
+#define MSBF_ENB		0x01	/* SSI Most Significant Bit First Mode Enable */
+
+#define SSICMD_CMD_SEL_XMITRCV	0x03	/* Simultaneous Transmit / Receive Transaction */
+#define SSICMD_CMD_SEL_RCV	0x02	/* Receive Transaction */
+#define SSICMD_CMD_SEL_XMIT	0x01	/* Transmit Transaction */
+#define SSISTA_BSY		0x02	/* SSI Busy */
+#define SSISTA_TC_INT		0x01	/* SSI Transaction Complete Interrupt */
+
+/* BITS for SC520_ADDDECCTL: */
+#define WPV_INT_ENB		0x80	/* Write-Protect Violation Interrupt Enable */
+#define IO_HOLE_DEST_PCI	0x10	/* I/O Hole Access Destination */
+#define RTC_DIS			0x04	/* RTC Disable */
+#define UART2_DIS		0x02	/* UART2 Disable */
+#define UART1_DIS		0x01	/* UART1 Disable */
+
+/*
+ * Defines used for SDRAM Sizing (number of columns and rows)
+ * Refer to section 10.6.4 - SDRAM Sizing Algorithm in the
+ * Elan SC520 Microcontroller User's Manual (Order #22004B)
+ */
+#define CACHELINESZ		0x00000010
+
+#define COL11_ADR		0x0e001e00
+#define COL10_ADR		0x0e000e00
+#define COL09_ADR		0x0e000600
+#define COL08_ADR		0x0e000200
+#define COL11_DATA		0x0b0b0b0b
+#define COL10_DATA		0x0a0a0a0a
+#define COL09_DATA		0x09090909
+#define COL08_DATA		0x08080808
+
+#define ROW14_ADR		0x0f000000
+#define ROW13_ADR		0x07000000
+#define ROW12_ADR		0x03000000
+#define ROW11_ADR		0x01000000
+#define ROW10_ADR		0x00000000
+#define ROW14_DATA		0x3f3f3f3f
+#define ROW13_DATA		0x1f1f1f1f
+#define ROW12_DATA		0x0f0f0f0f
+#define ROW11_DATA		0x07070707
+#define ROW10_DATA		0xaaaaaaaa
+
+/* 0x28000000 - 0x3fffffff is used by the flash banks */
+
+/* 0x40000000 - 0xffffffff is not adressable by the SC520 */
+
+/* priority numbers used for interrupt channel mappings */
+#define SC520_IRQ_DISABLED 0
+#define SC520_IRQ0  1
+#define SC520_IRQ1  2
+#define SC520_IRQ2  4  /* same as IRQ9 */
+#define SC520_IRQ3  11
+#define SC520_IRQ4  12
+#define SC520_IRQ5  13
+#define SC520_IRQ6  21
+#define SC520_IRQ7  22
+#define SC520_IRQ8  3
+#define SC520_IRQ9  4
+#define SC520_IRQ10 5
+#define SC520_IRQ11 6
+#define SC520_IRQ12 7
+#define SC520_IRQ13 8
+#define SC520_IRQ14 9
+#define SC520_IRQ15 10
+
+#endif
diff --git a/arch/x86/include/asm/ic/ssi.h b/arch/x86/include/asm/ic/ssi.h
new file mode 100644
index 0000000..bd48eab
--- /dev/null
+++ b/arch/x86/include/asm/ic/ssi.h
@@ -0,0 +1,34 @@
+/*
+ * (C) Copyright 2008
+ * Graeme Russ <graeme.russ@gmail.com>.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _ASM_IC_SSI_H_
+#define _ASM_IC_SSI_H_ 1
+
+int ssi_set_interface(int, int, int, int);
+void ssi_chip_select(int);
+u8 ssi_txrx_byte(u8);
+void ssi_tx_byte(u8);
+u8 ssi_rx_byte(void);
+
+
+#endif
diff --git a/arch/x86/include/asm/interrupt.h b/arch/x86/include/asm/interrupt.h
new file mode 100644
index 0000000..be52fe4
--- /dev/null
+++ b/arch/x86/include/asm/interrupt.h
@@ -0,0 +1,46 @@
+/*
+ * (C) Copyright 2009
+ * Graeme Russ, graeme.russ@gmail.com
+ *
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, daniel@omicron.se
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __ASM_INTERRUPT_H_
+#define __ASM_INTERRUPT_H_ 1
+
+#include <asm/types.h>
+
+/* arch/x86/cpu/interrupts.c */
+void set_vector(u8 intnum, void *routine);
+
+/* arch/x86/lib/interupts.c */
+void disable_irq(int irq);
+void enable_irq(int irq);
+
+/* Architecture specific functions */
+void mask_irq(int irq);
+void unmask_irq(int irq);
+void specific_eoi(int irq);
+
+extern char exception_stack[];
+
+#endif
diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
new file mode 100644
index 0000000..9b757d4
--- /dev/null
+++ b/arch/x86/include/asm/io.h
@@ -0,0 +1,237 @@
+#ifndef _ASM_IO_H
+#define _ASM_IO_H
+
+/*
+ * This file contains the definitions for the x86 IO instructions
+ * inb/inw/inl/outb/outw/outl and the "string versions" of the same
+ * (insb/insw/insl/outsb/outsw/outsl). You can also use "pausing"
+ * versions of the single-IO instructions (inb_p/inw_p/..).
+ *
+ * This file is not meant to be obfuscating: it's just complicated
+ * to (a) handle it all in a way that makes gcc able to optimize it
+ * as well as possible and (b) trying to avoid writing the same thing
+ * over and over again with slight variations and possibly making a
+ * mistake somewhere.
+ */
+
+/*
+ * Thanks to James van Artsdalen for a better timing-fix than
+ * the two short jumps: using outb's to a nonexistent port seems
+ * to guarantee better timings even on fast machines.
+ *
+ * On the other hand, I'd like to be sure of a non-existent port:
+ * I feel a bit unsafe about using 0x80 (should be safe, though)
+ *
+ *		Linus
+ */
+
+ /*
+  *  Bit simplified and optimized by Jan Hubicka
+  *  Support of BIGMEM added by Gerhard Wichert, Siemens AG, July 1999.
+  *
+  *  isa_memset_io, isa_memcpy_fromio, isa_memcpy_toio added,
+  *  isa_read[wl] and isa_write[wl] fixed
+  *  - Arnaldo Carvalho de Melo <acme@conectiva.com.br>
+  */
+
+#define IO_SPACE_LIMIT 0xffff
+
+
+#ifdef __KERNEL__
+
+
+/*
+ * readX/writeX() are used to access memory mapped devices. On some
+ * architectures the memory mapped IO stuff needs to be accessed
+ * differently. On the x86 architecture, we just read/write the
+ * memory location directly.
+ */
+
+#define readb(addr) (*(volatile unsigned char *) (addr))
+#define readw(addr) (*(volatile unsigned short *) (addr))
+#define readl(addr) (*(volatile unsigned int *) (addr))
+#define __raw_readb readb
+#define __raw_readw readw
+#define __raw_readl readl
+
+#define writeb(b,addr) (*(volatile unsigned char *) (addr) = (b))
+#define writew(b,addr) (*(volatile unsigned short *) (addr) = (b))
+#define writel(b,addr) (*(volatile unsigned int *) (addr) = (b))
+#define __raw_writeb writeb
+#define __raw_writew writew
+#define __raw_writel writel
+
+#define memset_io(a,b,c)	memset((a),(b),(c))
+#define memcpy_fromio(a,b,c)	memcpy((a),(b),(c))
+#define memcpy_toio(a,b,c)	memcpy((a),(b),(c))
+
+/*
+ * ISA space is 'always mapped' on a typical x86 system, no need to
+ * explicitly ioremap() it. The fact that the ISA IO space is mapped
+ * to PAGE_OFFSET is pure coincidence - it does not mean ISA values
+ * are physical addresses. The following constant pointer can be
+ * used as the IO-area pointer (it can be iounmapped as well, so the
+ * analogy with PCI is quite large):
+ */
+#define isa_readb(a) readb((a))
+#define isa_readw(a) readw((a))
+#define isa_readl(a) readl((a))
+#define isa_writeb(b,a) writeb(b,(a))
+#define isa_writew(w,a) writew(w,(a))
+#define isa_writel(l,a) writel(l,(a))
+#define isa_memset_io(a,b,c)		memset_io((a),(b),(c))
+#define isa_memcpy_fromio(a,b,c)	memcpy_fromio((a),(b),(c))
+#define isa_memcpy_toio(a,b,c)		memcpy_toio((a),(b),(c))
+
+
+static inline int check_signature(unsigned long io_addr,
+	const unsigned char *signature, int length)
+{
+	int retval = 0;
+	do {
+		if (readb(io_addr) != *signature)
+			goto out;
+		io_addr++;
+		signature++;
+		length--;
+	} while (length);
+	retval = 1;
+out:
+	return retval;
+}
+
+/**
+ *	isa_check_signature		-	find BIOS signatures
+ *	@io_addr: mmio address to check
+ *	@signature:  signature block
+ *	@length: length of signature
+ *
+ *	Perform a signature comparison with the ISA mmio address io_addr.
+ *	Returns 1 on a match.
+ *
+ *	This function is deprecated. New drivers should use ioremap and
+ *	check_signature.
+ */
+
+
+static inline int isa_check_signature(unsigned long io_addr,
+	const unsigned char *signature, int length)
+{
+	int retval = 0;
+	do {
+		if (isa_readb(io_addr) != *signature)
+			goto out;
+		io_addr++;
+		signature++;
+		length--;
+	} while (length);
+	retval = 1;
+out:
+	return retval;
+}
+
+#endif /* __KERNEL__ */
+
+#ifdef SLOW_IO_BY_JUMPING
+#define __SLOW_DOWN_IO "\njmp 1f\n1:\tjmp 1f\n1:"
+#else
+#define __SLOW_DOWN_IO "\noutb %%al,$0x80"
+#endif
+
+#ifdef REALLY_SLOW_IO
+#define __FULL_SLOW_DOWN_IO __SLOW_DOWN_IO __SLOW_DOWN_IO __SLOW_DOWN_IO __SLOW_DOWN_IO
+#else
+#define __FULL_SLOW_DOWN_IO __SLOW_DOWN_IO
+#endif
+
+
+/*
+ * Talk about misusing macros..
+ */
+#define __OUT1(s,x) \
+static inline void out##s(unsigned x value, unsigned short port) {
+
+#define __OUT2(s,s1,s2) \
+__asm__ __volatile__ ("out" #s " %" s1 "0,%" s2 "1"
+
+
+#define __OUT(s,s1,x) \
+__OUT1(s,x) __OUT2(s,s1,"w") : : "a" (value), "Nd" (port)); } \
+__OUT1(s##_p,x) __OUT2(s,s1,"w") __FULL_SLOW_DOWN_IO : : "a" (value), "Nd" (port));}
+
+#define __IN1(s) \
+static inline RETURN_TYPE in##s(unsigned short port) { RETURN_TYPE _v;
+
+#define __IN2(s,s1,s2) \
+__asm__ __volatile__ ("in" #s " %" s2 "1,%" s1 "0"
+
+#define __IN(s,s1,i...) \
+__IN1(s) __IN2(s,s1,"w") : "=a" (_v) : "Nd" (port) ,##i ); return _v; } \
+__IN1(s##_p) __IN2(s,s1,"w") __FULL_SLOW_DOWN_IO : "=a" (_v) : "Nd" (port) ,##i ); return _v; }
+
+#define __INS(s) \
+static inline void ins##s(unsigned short port, void * addr, unsigned long count) \
+{ __asm__ __volatile__ ("rep ; ins" #s \
+: "=D" (addr), "=c" (count) : "d" (port),"0" (addr),"1" (count)); }
+
+#define __OUTS(s) \
+static inline void outs##s(unsigned short port, const void * addr, unsigned long count) \
+{ __asm__ __volatile__ ("rep ; outs" #s \
+: "=S" (addr), "=c" (count) : "d" (port),"0" (addr),"1" (count)); }
+
+#define RETURN_TYPE unsigned char
+__IN(b,"")
+#undef RETURN_TYPE
+#define RETURN_TYPE unsigned short
+__IN(w,"")
+#undef RETURN_TYPE
+#define RETURN_TYPE unsigned int
+__IN(l,"")
+#undef RETURN_TYPE
+
+__OUT(b,"b",char)
+__OUT(w,"w",short)
+__OUT(l,,int)
+
+__INS(b)
+__INS(w)
+__INS(l)
+
+__OUTS(b)
+__OUTS(w)
+__OUTS(l)
+
+static inline void sync(void)
+{
+}
+
+/*
+ * Given a physical address and a length, return a virtual address
+ * that can be used to access the memory range with the caching
+ * properties specified by "flags".
+ */
+#define MAP_NOCACHE	(0)
+#define MAP_WRCOMBINE	(0)
+#define MAP_WRBACK	(0)
+#define MAP_WRTHROUGH	(0)
+
+static inline void *
+map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags)
+{
+	return (void *)paddr;
+}
+
+/*
+ * Take down a mapping set up by map_physmem().
+ */
+static inline void unmap_physmem(void *vaddr, unsigned long flags)
+{
+
+}
+
+static inline phys_addr_t virt_to_phys(void * vaddr)
+{
+	return (phys_addr_t)(vaddr);
+}
+
+#endif
diff --git a/arch/x86/include/asm/ioctl.h b/arch/x86/include/asm/ioctl.h
new file mode 100644
index 0000000..b279fe0
--- /dev/null
+++ b/arch/x86/include/asm/ioctl.h
@@ -0,0 +1 @@
+#include <asm-generic/ioctl.h>
diff --git a/arch/x86/include/asm/ist.h b/arch/x86/include/asm/ist.h
new file mode 100644
index 0000000..7e5dff1
--- /dev/null
+++ b/arch/x86/include/asm/ist.h
@@ -0,0 +1,34 @@
+#ifndef _ASM_X86_IST_H
+#define _ASM_X86_IST_H
+
+/*
+ * Include file for the interface to IST BIOS
+ * Copyright 2002 Andy Grover <andrew.grover@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+
+#include <linux/types.h>
+
+struct ist_info {
+	__u32 signature;
+	__u32 command;
+	__u32 event;
+	__u32 perf_level;
+};
+
+#ifdef __KERNEL__
+
+extern struct ist_info ist_info;
+
+#endif	/* __KERNEL__ */
+#endif /* _ASM_X86_IST_H */
diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h
new file mode 100644
index 0000000..050a2bb
--- /dev/null
+++ b/arch/x86/include/asm/pci.h
@@ -0,0 +1,34 @@
+
+
+/*
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, daniel@omicron.se
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _PCI_I386_H_
+#define _PCI_I386_H_	1
+
+void pci_setup_type1(struct pci_controller* hose, u32 cfg_addr, u32 cfg_data);
+int pci_enable_legacy_video_ports(struct pci_controller* hose);
+int pci_shadow_rom(pci_dev_t dev, unsigned char *dest);
+void pci_remove_rom_window(struct pci_controller* hose, u32 addr);
+u32 pci_get_rom_window(struct pci_controller* hose, int size);
+#endif
diff --git a/arch/x86/include/asm/posix_types.h b/arch/x86/include/asm/posix_types.h
new file mode 100644
index 0000000..5529f32
--- /dev/null
+++ b/arch/x86/include/asm/posix_types.h
@@ -0,0 +1,80 @@
+#ifndef __ARCH_I386_POSIX_TYPES_H
+#define __ARCH_I386_POSIX_TYPES_H
+
+/*
+ * This file is generally used by user-level software, so you need to
+ * be a little careful about namespace pollution etc.  Also, we cannot
+ * assume GCC is being used.
+ */
+
+typedef unsigned short	__kernel_dev_t;
+typedef unsigned long	__kernel_ino_t;
+typedef unsigned short	__kernel_mode_t;
+typedef unsigned short	__kernel_nlink_t;
+typedef long		__kernel_off_t;
+typedef int		__kernel_pid_t;
+typedef unsigned short	__kernel_ipc_pid_t;
+typedef unsigned short	__kernel_uid_t;
+typedef unsigned short	__kernel_gid_t;
+typedef unsigned int	__kernel_size_t;
+typedef int		__kernel_ssize_t;
+typedef int		__kernel_ptrdiff_t;
+typedef long		__kernel_time_t;
+typedef long		__kernel_suseconds_t;
+typedef long		__kernel_clock_t;
+typedef int		__kernel_daddr_t;
+typedef char *		__kernel_caddr_t;
+typedef unsigned short	__kernel_uid16_t;
+typedef unsigned short	__kernel_gid16_t;
+typedef unsigned int	__kernel_uid32_t;
+typedef unsigned int	__kernel_gid32_t;
+
+typedef unsigned short	__kernel_old_uid_t;
+typedef unsigned short	__kernel_old_gid_t;
+
+#ifdef __GNUC__
+typedef long long	__kernel_loff_t;
+#endif
+
+typedef struct {
+#if defined(__KERNEL__) || defined(__USE_ALL)
+	int	val[2];
+#else /* !defined(__KERNEL__) && !defined(__USE_ALL) */
+	int	__val[2];
+#endif /* !defined(__KERNEL__) && !defined(__USE_ALL) */
+} __kernel_fsid_t;
+
+#if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2)
+
+#undef	__FD_SET
+#define __FD_SET(fd,fdsetp) \
+		__asm__ __volatile__("btsl %1,%0": \
+			"=m" (*(__kernel_fd_set *) (fdsetp)):"r" ((int) (fd)))
+
+#undef	__FD_CLR
+#define __FD_CLR(fd,fdsetp) \
+		__asm__ __volatile__("btrl %1,%0": \
+			"=m" (*(__kernel_fd_set *) (fdsetp)):"r" ((int) (fd)))
+
+#undef	__FD_ISSET
+#define __FD_ISSET(fd,fdsetp) (__extension__ ({ \
+		unsigned char __result; \
+		__asm__ __volatile__("btl %1,%2 ; setb %0" \
+			:"=q" (__result) :"r" ((int) (fd)), \
+			"m" (*(__kernel_fd_set *) (fdsetp))); \
+		__result; }))
+
+#undef	__FD_ZERO
+#define __FD_ZERO(fdsetp) \
+do { \
+	int __d0, __d1; \
+	__asm__ __volatile__("cld ; rep ; stosl" \
+			:"=m" (*(__kernel_fd_set *) (fdsetp)), \
+			  "=&c" (__d0), "=&D" (__d1) \
+			:"a" (0), "1" (__FDSET_LONGS), \
+			"2" ((__kernel_fd_set *) (fdsetp)) : "memory"); \
+} while (0)
+
+#endif /* defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) */
+
+#endif
diff --git a/arch/x86/include/asm/processor-flags.h b/arch/x86/include/asm/processor-flags.h
new file mode 100644
index 0000000..7a3e836
--- /dev/null
+++ b/arch/x86/include/asm/processor-flags.h
@@ -0,0 +1,100 @@
+#ifndef _ASM_X86_PROCESSOR_FLAGS_H
+#define _ASM_X86_PROCESSOR_FLAGS_H
+/* Various flags defined: can be included from assembler. */
+
+/*
+ * EFLAGS bits
+ */
+#define X86_EFLAGS_CF	0x00000001 /* Carry Flag */
+#define X86_EFLAGS_PF	0x00000004 /* Parity Flag */
+#define X86_EFLAGS_AF	0x00000010 /* Auxillary carry Flag */
+#define X86_EFLAGS_ZF	0x00000040 /* Zero Flag */
+#define X86_EFLAGS_SF	0x00000080 /* Sign Flag */
+#define X86_EFLAGS_TF	0x00000100 /* Trap Flag */
+#define X86_EFLAGS_IF	0x00000200 /* Interrupt Flag */
+#define X86_EFLAGS_DF	0x00000400 /* Direction Flag */
+#define X86_EFLAGS_OF	0x00000800 /* Overflow Flag */
+#define X86_EFLAGS_IOPL	0x00003000 /* IOPL mask */
+#define X86_EFLAGS_NT	0x00004000 /* Nested Task */
+#define X86_EFLAGS_RF	0x00010000 /* Resume Flag */
+#define X86_EFLAGS_VM	0x00020000 /* Virtual Mode */
+#define X86_EFLAGS_AC	0x00040000 /* Alignment Check */
+#define X86_EFLAGS_VIF	0x00080000 /* Virtual Interrupt Flag */
+#define X86_EFLAGS_VIP	0x00100000 /* Virtual Interrupt Pending */
+#define X86_EFLAGS_ID	0x00200000 /* CPUID detection flag */
+
+/*
+ * Basic CPU control in CR0
+ */
+#define X86_CR0_PE	0x00000001 /* Protection Enable */
+#define X86_CR0_MP	0x00000002 /* Monitor Coprocessor */
+#define X86_CR0_EM	0x00000004 /* Emulation */
+#define X86_CR0_TS	0x00000008 /* Task Switched */
+#define X86_CR0_ET	0x00000010 /* Extension Type */
+#define X86_CR0_NE	0x00000020 /* Numeric Error */
+#define X86_CR0_WP	0x00010000 /* Write Protect */
+#define X86_CR0_AM	0x00040000 /* Alignment Mask */
+#define X86_CR0_NW	0x20000000 /* Not Write-through */
+#define X86_CR0_CD	0x40000000 /* Cache Disable */
+#define X86_CR0_PG	0x80000000 /* Paging */
+
+/*
+ * Paging options in CR3
+ */
+#define X86_CR3_PWT	0x00000008 /* Page Write Through */
+#define X86_CR3_PCD	0x00000010 /* Page Cache Disable */
+
+/*
+ * Intel CPU features in CR4
+ */
+#define X86_CR4_VME	0x00000001 /* enable vm86 extensions */
+#define X86_CR4_PVI	0x00000002 /* virtual interrupts flag enable */
+#define X86_CR4_TSD	0x00000004 /* disable time stamp at ipl 3 */
+#define X86_CR4_DE	0x00000008 /* enable debugging extensions */
+#define X86_CR4_PSE	0x00000010 /* enable page size extensions */
+#define X86_CR4_PAE	0x00000020 /* enable physical address extensions */
+#define X86_CR4_MCE	0x00000040 /* Machine check enable */
+#define X86_CR4_PGE	0x00000080 /* enable global pages */
+#define X86_CR4_PCE	0x00000100 /* enable performance counters at ipl 3 */
+#define X86_CR4_OSFXSR	0x00000200 /* enable fast FPU save and restore */
+#define X86_CR4_OSXMMEXCPT 0x00000400 /* enable unmasked SSE exceptions */
+#define X86_CR4_VMXE	0x00002000 /* enable VMX virtualization */
+#define X86_CR4_OSXSAVE 0x00040000 /* enable xsave and xrestore */
+
+/*
+ * x86-64 Task Priority Register, CR8
+ */
+#define X86_CR8_TPR	0x0000000F /* task priority register */
+
+/*
+ * AMD and Transmeta use MSRs for configuration; see <asm/msr-index.h>
+ */
+
+/*
+ *      NSC/Cyrix CPU configuration register indexes
+ */
+#define CX86_PCR0	0x20
+#define CX86_GCR	0xb8
+#define CX86_CCR0	0xc0
+#define CX86_CCR1	0xc1
+#define CX86_CCR2	0xc2
+#define CX86_CCR3	0xc3
+#define CX86_CCR4	0xe8
+#define CX86_CCR5	0xe9
+#define CX86_CCR6	0xea
+#define CX86_CCR7	0xeb
+#define CX86_PCR1	0xf0
+#define CX86_DIR0	0xfe
+#define CX86_DIR1	0xff
+#define CX86_ARR_BASE	0xc4
+#define CX86_RCR_BASE	0xdc
+
+#ifdef __KERNEL__
+#ifdef CONFIG_VM86
+#define X86_VM_MASK	X86_EFLAGS_VM
+#else
+#define X86_VM_MASK	0 /* No VM86 support */
+#endif
+#endif
+
+#endif /* _ASM_X86_PROCESSOR_FLAGS_H */
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
new file mode 100644
index 0000000..22a1298
--- /dev/null
+++ b/arch/x86/include/asm/processor.h
@@ -0,0 +1,32 @@
+/*
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, daniel@omicron.se
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __ASM_PROCESSOR_H_
+#define __ASM_PROCESSOR_H_ 1
+
+#define GDT_ENTRY_32BIT_CS	2
+#define GDT_ENTRY_32BIT_DS	(GDT_ENTRY_32BIT_CS + 1)
+#define GDT_ENTRY_16BIT_CS	(GDT_ENTRY_32BIT_DS + 1)
+#define GDT_ENTRY_16BIT_DS	(GDT_ENTRY_16BIT_CS + 1)
+
+#endif
diff --git a/arch/x86/include/asm/ptrace.h b/arch/x86/include/asm/ptrace.h
new file mode 100644
index 0000000..a727dbf
--- /dev/null
+++ b/arch/x86/include/asm/ptrace.h
@@ -0,0 +1,90 @@
+#ifndef _I386_PTRACE_H
+#define _I386_PTRACE_H
+
+#include <asm/types.h>
+
+#define EBX 0
+#define ECX 1
+#define EDX 2
+#define ESI 3
+#define EDI 4
+#define EBP 5
+#define EAX 6
+#define DS 7
+#define ES 8
+#define FS 9
+#define GS 10
+#define ORIG_EAX 11
+#define EIP 12
+#define CS  13
+#define EFL 14
+#define UESP 15
+#define SS   16
+#define FRAME_SIZE 17
+
+/* this struct defines the way the registers are stored on the
+   stack during a system call. */
+
+struct pt_regs {
+	long ebx;
+	long ecx;
+	long edx;
+	long esi;
+	long edi;
+	long ebp;
+	long eax;
+	int  xds;
+	int  xes;
+	int  xfs;
+	int  xgs;
+	long orig_eax;
+	long eip;
+	int  xcs;
+	long eflags;
+	long esp;
+	int  xss;
+}  __attribute__ ((packed));
+
+struct irq_regs {
+	/* Pushed by irq_common_entry */
+	long ebx;
+	long ecx;
+	long edx;
+	long esi;
+	long edi;
+	long ebp;
+	long esp;
+	long eax;
+	long xds;
+	long xes;
+	long xfs;
+	long xgs;
+	long xss;
+	/* Pushed by vector handler (irq_<num>) */
+	long irq_id;
+	/* Pushed by cpu in response to interrupt */
+	long eip;
+	long xcs;
+	long eflags;
+}  __attribute__ ((packed));
+
+/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
+#define PTRACE_GETREGS            12
+#define PTRACE_SETREGS            13
+#define PTRACE_GETFPREGS          14
+#define PTRACE_SETFPREGS          15
+#define PTRACE_GETFPXREGS         18
+#define PTRACE_SETFPXREGS         19
+
+#define PTRACE_SETOPTIONS         21
+
+/* options set using PTRACE_SETOPTIONS */
+#define PTRACE_O_TRACESYSGOOD     0x00000001
+
+#ifdef __KERNEL__
+#define user_mode(regs) ((VM_MASK & (regs)->eflags) || (3 & (regs)->xcs))
+#define instruction_pointer(regs) ((regs)->eip)
+extern void show_regs(struct pt_regs *);
+#endif
+
+#endif
diff --git a/arch/x86/include/asm/realmode.h b/arch/x86/include/asm/realmode.h
new file mode 100644
index 0000000..9177e4e
--- /dev/null
+++ b/arch/x86/include/asm/realmode.h
@@ -0,0 +1,32 @@
+/*
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, daniel@omicron.se
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __ASM_REALMODE_H_
+#define __ASM_REALMODE_H_
+#include <asm/ptrace.h>
+
+int bios_setup(void);
+int enter_realmode(u16 seg, u16 off, struct pt_regs *in, struct pt_regs *out);
+int enter_realmode_int(u8 lvl, struct pt_regs *in, struct pt_regs *out);
+
+#endif
diff --git a/arch/x86/include/asm/string.h b/arch/x86/include/asm/string.h
new file mode 100644
index 0000000..3643a79
--- /dev/null
+++ b/arch/x86/include/asm/string.h
@@ -0,0 +1,32 @@
+#ifndef __ASM_I386_STRING_H
+#define __ASM_I386_STRING_H
+
+/*
+ * We don't do inline string functions, since the
+ * optimised inline asm versions are not small.
+ */
+#undef __HAVE_ARCH_STRNCPY
+extern char *strncpy(char *__dest, __const__ char *__src, __kernel_size_t __n);
+
+#undef __HAVE_ARCH_STRRCHR
+extern char * strrchr(const char * s, int c);
+
+#undef __HAVE_ARCH_STRCHR
+extern char * strchr(const char * s, int c);
+
+#undef __HAVE_ARCH_MEMCPY
+extern void * memcpy(void *, const void *, __kernel_size_t);
+
+#undef __HAVE_ARCH_MEMMOVE
+extern void * memmove(void *, const void *, __kernel_size_t);
+
+#undef __HAVE_ARCH_MEMCHR
+extern void * memchr(const void *, int, __kernel_size_t);
+
+#undef __HAVE_ARCH_MEMSET
+extern void * memset(void *, int, __kernel_size_t);
+
+#undef __HAVE_ARCH_MEMZERO
+extern void memzero(void *ptr, __kernel_size_t n);
+
+#endif
diff --git a/arch/x86/include/asm/types.h b/arch/x86/include/asm/types.h
new file mode 100644
index 0000000..9a40e38
--- /dev/null
+++ b/arch/x86/include/asm/types.h
@@ -0,0 +1,53 @@
+#ifndef __ASM_I386_TYPES_H
+#define __ASM_I386_TYPES_H
+
+typedef unsigned short umode_t;
+
+/*
+ * __xx is ok: it doesn't pollute the POSIX namespace. Use these in the
+ * header files exported to user space
+ */
+
+typedef __signed__ char __s8;
+typedef unsigned char __u8;
+
+typedef __signed__ short __s16;
+typedef unsigned short __u16;
+
+typedef __signed__ int __s32;
+typedef unsigned int __u32;
+
+#if defined(__GNUC__)
+__extension__ typedef __signed__ long long __s64;
+__extension__ typedef unsigned long long __u64;
+#endif
+
+/*
+ * These aren't exported outside the kernel to avoid name space clashes
+ */
+#ifdef __KERNEL__
+
+typedef signed char s8;
+typedef unsigned char u8;
+
+typedef signed short s16;
+typedef unsigned short u16;
+
+typedef signed int s32;
+typedef unsigned int u32;
+
+typedef signed long long s64;
+typedef unsigned long long u64;
+
+#define BITS_PER_LONG 32
+
+/* Dma addresses are 32-bits wide.  */
+
+typedef u32 dma_addr_t;
+
+typedef unsigned long phys_addr_t;
+typedef unsigned long phys_size_t;
+
+#endif /* __KERNEL__ */
+
+#endif
diff --git a/arch/x86/include/asm/u-boot-x86.h b/arch/x86/include/asm/u-boot-x86.h
new file mode 100644
index 0000000..944e1a2
--- /dev/null
+++ b/arch/x86/include/asm/u-boot-x86.h
@@ -0,0 +1,59 @@
+/*
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, daniel@omicron.se.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _U_BOOT_I386_H_
+#define _U_BOOT_I386_H_	1
+
+/* cpu/.../cpu.c */
+int x86_cpu_init_r(void);
+int cpu_init_r(void);
+int x86_cpu_init_f(void);
+int cpu_init_f(void);
+
+/* cpu/.../timer.c */
+void timer_isr(void *);
+typedef void (timer_fnc_t) (void);
+int register_timer_isr (timer_fnc_t *isr_func);
+
+/* Architecture specific - can be in arch/x86/cpu/, arch/x86/lib/, or $(BOARD)/ */
+int timer_init(void);
+int dram_init_f(void);
+
+/* cpu/.../interrupts.c */
+int cpu_init_interrupts(void);
+
+/* board/.../... */
+int board_init(void);
+int dram_init(void);
+
+void setup_pcat_compatibility(void);
+
+void isa_unmap_rom(u32 addr);
+u32 isa_map_rom(u32 bus_addr, int size);
+
+/* arch/x86/lib/... */
+int video_bios_init(void);
+int video_init(void);
+
+
+#endif	/* _U_BOOT_I386_H_ */
diff --git a/arch/x86/include/asm/u-boot.h b/arch/x86/include/asm/u-boot.h
new file mode 100644
index 0000000..a43b3aa
--- /dev/null
+++ b/arch/x86/include/asm/u-boot.h
@@ -0,0 +1,61 @@
+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Alex Zuepke <azu@sysgo.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ ********************************************************************
+ * NOTE: This header file defines an interface to U-Boot. Including
+ * this (unmodified) header file in another file is considered normal
+ * use of U-Boot, and does *not* fall under the heading of "derived
+ * work".
+ ********************************************************************
+ */
+
+#ifndef _U_BOOT_H_
+#define _U_BOOT_H_	1
+
+typedef struct bd_info {
+	unsigned long	bi_memstart;	/* start of DRAM memory */
+	phys_size_t	bi_memsize;	/* size	 of DRAM memory in bytes */
+	unsigned long	bi_flashstart;	/* start of FLASH memory */
+	unsigned long	bi_flashsize;	/* size	 of FLASH memory */
+	unsigned long	bi_flashoffset; /* reserved area for startup monitor */
+	unsigned long	bi_sramstart;	/* start of SRAM memory */
+	unsigned long	bi_sramsize;	/* size	 of SRAM memory */
+	unsigned long	bi_bootflags;	/* boot / reboot flag (for LynxOS) */
+	unsigned long	bi_ip_addr;	/* IP Address */
+	unsigned short	bi_ethspeed;	/* Ethernet speed in Mbps */
+	unsigned long	bi_intfreq;	/* Internal Freq, in MHz */
+	unsigned long	bi_busfreq;	/* Bus Freq, in MHz */
+	unsigned int	bi_baudrate;	/* Console Baudrate */
+	unsigned long   bi_boot_params;	/* where this board expects params */
+	struct				/* RAM configuration */
+	{
+		ulong start;
+		ulong size;
+	}bi_dram[CONFIG_NR_DRAM_BANKS];
+} bd_t;
+
+#endif	/* _U_BOOT_H_ */
diff --git a/arch/x86/include/asm/unaligned.h b/arch/x86/include/asm/unaligned.h
new file mode 100644
index 0000000..6cecbbb
--- /dev/null
+++ b/arch/x86/include/asm/unaligned.h
@@ -0,0 +1 @@
+#include <asm-generic/unaligned.h>
diff --git a/arch/x86/include/asm/video/edid.h b/arch/x86/include/asm/video/edid.h
new file mode 100644
index 0000000..928c342
--- /dev/null
+++ b/arch/x86/include/asm/video/edid.h
@@ -0,0 +1,16 @@
+#ifndef __linux_video_edid_h__
+#define __linux_video_edid_h__
+
+#if !defined(__KERNEL__) || defined(CONFIG_X86)
+
+struct edid_info {
+	unsigned char dummy[128];
+};
+
+#ifdef __KERNEL__
+extern struct edid_info edid_info;
+#endif /* __KERNEL__ */
+
+#endif
+
+#endif /* __linux_video_edid_h__ */
diff --git a/arch/x86/include/asm/zimage.h b/arch/x86/include/asm/zimage.h
new file mode 100644
index 0000000..b6266e4
--- /dev/null
+++ b/arch/x86/include/asm/zimage.h
@@ -0,0 +1,74 @@
+/*
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, daniel@omicron.se
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _ASM_ZIMAGE_H_
+#define _ASM_ZIMAGE_H_
+
+/* linux i386 zImage/bzImage header. Offsets relative to
+ * the start of the image */
+
+#define CMD_LINE_MAGIC_OFF  0x020 /* Magic 0xa33f if the offset below is valid */
+#define CMD_LINE_OFFSET_OFF 0x022 /* Offset to comandline */
+#define SETUP_SECTS_OFF     0x1F1 /* The size of the setup in sectors */
+#define ROOT_FLAGS_OFF      0x1F2 /* If set, the root is mounted readonly */
+#define VID_MODE_OFF        0x1FA /* Video mode control */
+#define ROOT_DEV_OFF        0x1FC /* Default root device number */
+#define BOOT_FLAG_OFF       0x1FE /* 0xAA55 magic number */
+#define HEADER_OFF          0x202 /* Magic signature "HdrS" */
+#define VERSION_OFF         0x206 /* Boot protocol version supported */
+#define REALMODE_SWTCH_OFF  0x208 /* Boot loader hook (see below) */
+#define START_SYS_OFF       0x20C /* Points to kernel version string */
+#define TYPE_OF_LOADER_OFF  0x210 /* Boot loader identifier */
+#define LOADFLAGS_OFF       0x211 /* Boot protocol option flags */
+#define SETUP_MOVE_SIZE_OFF 0x212 /* Move to high memory size (used with hooks) */
+#define CODE32_START_OFF    0x214 /* Boot loader hook (see below) */
+#define RAMDISK_IMAGE_OFF   0x218 /* initrd load address (set by boot loader) */
+#define RAMDISK_SIZE_OFF    0x21C /* initrd size (set by boot loader) */
+#define HEAP_END_PTR_OFF    0x224 /* Free memory after setup end */
+#define CMD_LINE_PTR_OFF    0x228 /* 32-bit pointer to the kernel command line */
+
+
+#define HEAP_FLAG           0x80
+#define BIG_KERNEL_FLAG     0x01
+
+/* magic numbers */
+#define KERNEL_MAGIC        0xaa55
+#define KERNEL_V2_MAGIC     0x53726448
+#define COMMAND_LINE_MAGIC  0xA33F
+
+/* limits */
+#define BZIMAGE_MAX_SIZE   15*1024*1024     /* 15MB */
+#define ZIMAGE_MAX_SIZE    512*1024         /* 512k */
+#define SETUP_MAX_SIZE     32768
+
+#define SETUP_START_OFFSET 0x200
+#define BZIMAGE_LOAD_ADDR  0x100000
+#define ZIMAGE_LOAD_ADDR   0x10000
+
+void *load_zimage(char *image, unsigned long kernel_size,
+		  unsigned long initrd_addr, unsigned long initrd_size,
+		  int auto_boot);
+
+void boot_zimage(void *setup_base);
+
+#endif
diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile
new file mode 100644
index 0000000..71e94f7
--- /dev/null
+++ b/arch/x86/lib/Makefile
@@ -0,0 +1,59 @@
+#
+# (C) Copyright 2002-2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= $(obj)lib$(ARCH).o
+
+SOBJS-y	+= bios.o
+SOBJS-y	+= bios_pci.o
+SOBJS-y	+= realmode_switch.o
+
+COBJS-y	+= bios_setup.o
+COBJS-y	+= board.o
+COBJS-y	+= bootm.o
+COBJS-y	+= interrupts.o
+COBJS-$(CONFIG_SYS_PCAT_INTERRUPTS) += pcat_interrupts.o
+COBJS-$(CONFIG_SYS_GENERIC_TIMER) += pcat_timer.o
+COBJS-$(CONFIG_PCI) += pci.o
+COBJS-$(CONFIG_PCI) += pci_type1.o
+COBJS-y	+= realmode.o
+COBJS-y	+= timer.o
+COBJS-y	+= video_bios.o
+COBJS-y	+= video.o
+COBJS-y	+= zimage.o
+
+SRCS	:= $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
+OBJS	:= $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))
+
+$(LIB):	$(obj).depend $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/arch/x86/lib/bios.S b/arch/x86/lib/bios.S
new file mode 100644
index 0000000..660a244
--- /dev/null
+++ b/arch/x86/lib/bios.S
@@ -0,0 +1,531 @@
+/*
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * Based on msbios.c from rolo 1.6:
+ *----------------------------------------------------------------------
+ * (C) Copyright 2000
+ * Sysgo Real-Time Solutions GmbH
+ * Klein-Winternheim, Germany
+ *----------------------------------------------------------------------
+ */
+
+#include "bios.h"
+
+/*
+ * During it's initialization phase, before switching to protected
+ * mode, the Linux Kernel makes a few BIOS calls. This won't work
+ * if the board does not have a BIOS.
+ *
+ * This is a very minimalisic BIOS that supplies just enough
+ * functionality to keep the Linux Kernel happy. It is NOT
+ * a general purpose replacement for a real BIOS !!
+ */
+
+.section .bios, "ax"
+.code16
+.org 0
+	/* a call to f000:0 should warmboot */
+	jmp	realmode_reset
+
+.globl rm_int00
+.hidden rm_int00
+.type rm_int00, @function
+rm_int00:
+	pushw	$0
+	jmp	any_interrupt16
+.globl rm_int01
+.hidden rm_int01
+.type rm_int01, @function
+rm_int01:
+	pushw	$1
+	jmp	any_interrupt16
+.globl rm_int02
+.hidden rm_int02
+.type rm_int02, @function
+rm_int02:
+	pushw	$2
+	jmp	any_interrupt16
+.globl rm_int03
+.hidden rm_int03
+.type rm_int03, @function
+rm_int03:
+	pushw	$3
+	jmp	any_interrupt16
+.globl rm_int04
+.hidden rm_int04
+.type rm_int04, @function
+rm_int04:
+	pushw	$4
+	jmp	any_interrupt16
+.globl rm_int05
+.hidden rm_int05
+.type rm_int05, @function
+rm_int05:
+	pushw	$5
+	jmp	any_interrupt16
+.globl rm_int06
+.hidden rm_int06
+.type rm_int06, @function
+rm_int06:
+	pushw	$6
+	jmp	any_interrupt16
+.globl rm_int07
+.hidden rm_int07
+.type rm_int07, @function
+rm_int07:
+	pushw	$7
+	jmp	any_interrupt16
+.globl rm_int08
+.hidden rm_int08
+.type rm_int08, @function
+rm_int08:
+	pushw	$8
+	jmp	any_interrupt16
+.globl rm_int09
+.hidden rm_int09
+.type rm_int09, @function
+rm_int09:
+	pushw	$9
+	jmp	any_interrupt16
+.globl rm_int0a
+.hidden rm_int0a
+.type rm_int0a, @function
+rm_int0a:
+	pushw	$10
+	jmp	any_interrupt16
+.globl rm_int0b
+.hidden rm_int0b
+.type rm_int0b, @function
+rm_int0b:
+	pushw	$11
+	jmp	any_interrupt16
+.globl rm_int0c
+.hidden rm_int0c
+.type rm_int0c, @function
+rm_int0c:
+	pushw	$12
+	jmp	any_interrupt16
+.globl rm_int0d
+.hidden rm_int0d
+.type rm_int0d, @function
+rm_int0d:
+	pushw	$13
+	jmp	any_interrupt16
+.globl rm_int0e
+.hidden rm_int0e
+.type rm_int0e, @function
+rm_int0e:
+	pushw	$14
+	jmp	any_interrupt16
+.globl rm_int0f
+.hidden rm_int0f
+.type rm_int0f, @function
+rm_int0f:
+	pushw	$15
+	jmp	any_interrupt16
+.globl rm_int10
+.hidden rm_int10
+.type rm_int10, @function
+rm_int10:
+	pushw	$16
+	jmp	any_interrupt16
+.globl rm_int11
+.hidden rm_int11
+.type rm_int11, @function
+rm_int11:
+	pushw	$17
+	jmp	any_interrupt16
+.globl rm_int12
+.hidden rm_int12
+.type rm_int12, @function
+rm_int12:
+	pushw	$18
+	jmp	any_interrupt16
+.globl rm_int13
+.hidden rm_int13
+.type rm_int13, @function
+rm_int13:
+	pushw	$19
+	jmp	any_interrupt16
+.globl rm_int14
+.hidden rm_int14
+.type rm_int14, @function
+rm_int14:
+	pushw	$20
+	jmp	any_interrupt16
+.globl rm_int15
+.hidden rm_int15
+.type rm_int15, @function
+rm_int15:
+	pushw	$21
+	jmp	any_interrupt16
+.globl rm_int16
+.hidden rm_int16
+.type rm_int16, @function
+rm_int16:
+	pushw	$22
+	jmp	any_interrupt16
+.globl rm_int17
+.hidden rm_int17
+.type rm_int17, @function
+rm_int17:
+	pushw	$23
+	jmp	any_interrupt16
+.globl rm_int18
+.hidden rm_int18
+.type rm_int18, @function
+rm_int18:
+	pushw	$24
+	jmp	any_interrupt16
+.globl rm_int19
+.hidden rm_int19
+.type rm_int19, @function
+rm_int19:
+	pushw	$25
+	jmp	any_interrupt16
+.globl rm_int1a
+.hidden rm_int1a
+.type rm_int1a, @function
+rm_int1a:
+	pushw	$26
+	jmp	any_interrupt16
+.globl rm_int1b
+.hidden rm_int1b
+.type rm_int1b, @function
+rm_int1b:
+	pushw	$27
+	jmp	any_interrupt16
+.globl rm_int1c
+.hidden rm_int1c
+.type rm_int1c, @function
+rm_int1c:
+	pushw	$28
+	jmp	any_interrupt16
+.globl rm_int1d
+.hidden rm_int1d
+.type rm_int1d, @function
+rm_int1d:
+	pushw	$29
+	jmp	any_interrupt16
+.globl rm_int1e
+.hidden rm_int1e
+.type rm_int1e, @function
+rm_int1e:
+	pushw	$30
+	jmp	any_interrupt16
+.globl rm_int1f
+.hidden rm_int1f
+.type rm_int1f, @function
+rm_int1f:
+	pushw	$31
+	jmp	any_interrupt16
+.globl rm_def_int
+.hidden rm_def_int
+.type rm_def_int, @function
+rm_def_int:
+	iret
+
+
+	/*
+	 * All interrupt jumptable entries jump to here
+	 * after pushing the interrupt vector number onto the
+	 * stack.
+	 */
+any_interrupt16:
+	MAKE_BIOS_STACK
+
+gs	movw	OFFS_VECTOR(%bp), %ax
+	cmpw	$0x10, %ax
+	je	Lint_10h
+	cmpw	$0x11, %ax
+	je	Lint_11h
+	cmpw	$0x12, %ax
+	je	Lint_12h
+	cmpw	$0x13, %ax
+	je	Lint_13h
+	cmpw	$0x15, %ax
+	je	Lint_15h
+	cmpw	$0x16, %ax
+	je	Lint_16h
+	cmpw	$0x1a, %ax
+	je	Lint_1ah
+	movw	$0xffff, %ax
+	jmp	Lout
+Lint_10h:					/* VGA BIOS services */
+	call	bios_10h
+	jmp	Lout
+Lint_11h:
+	call	bios_11h
+	jmp	Lout
+Lint_12h:
+	call	bios_12h
+	jmp	Lout
+Lint_13h:					/* BIOS disk services */
+	call	bios_13h
+	jmp	Lout
+Lint_15h:					/* Misc. BIOS services */
+	call	bios_15h
+	jmp	Lout
+Lint_16h:					/* keyboard services */
+	call	bios_16h
+	jmp	Lout
+Lint_1ah:					/* PCI bios */
+	call	bios_1ah
+	jmp	Lout
+Lout:
+	cmpw	$0, %ax
+	je	Lhandeled
+
+	/* Insert code for unhandeled INTs here.
+	 *
+	 * ROLO prints a message to the console
+	 * (we could do that but then we're in 16bit mode
+	 * so we'll have to get back into 32bit mode
+	 * to use the console I/O routines (if we do this
+	 * we shuls make int 0x10 and int 0x16 work as well))
+	 */
+Lhandeled:
+	RESTORE_CALLERS_STACK
+	addw	$2,%sp				/* dump vector number */
+	iret					/* return from interrupt */
+
+
+/*
+ ************************************************************
+ * BIOS	interrupt 10h -- VGA services
+ ************************************************************
+ */
+bios_10h:
+gs	movw	OFFS_AX(%bp), %ax
+	shrw	$8, %ax
+	cmpw	$0x3, %ax
+	je	Lcur_pos
+	cmpw	$0xf, %ax
+	je	Lvid_state
+	cmpw	$0x12, %ax
+	je	Lvid_cfg
+	movw	$0xffff, %ax
+	ret
+Lcur_pos:					/* Read Cursor Position and Size */
+gs	movw	$0, OFFS_CX(%bp)
+gs	movw	$0, OFFS_DX(%bp)
+	xorw	%ax, %ax
+	ret
+Lvid_state:					/* Get Video State */
+gs	movw	$(80 << 8|0x03), OFFS_AX(%bp)	/* 80 columns, 80x25, 16 colors */
+gs	movw	$0, OFFS_BX(%bp)
+	xorw	%ax, %ax
+	ret
+Lvid_cfg:	/* Video Subsystem Configuration (EGA/VGA) */
+gs	movw	$0x10, OFFS_BX(%bp)		/* indicate CGA/MDA/HGA */
+	xorw	%ax, %ax
+	ret
+
+
+/*
+ ************************************************************
+ * BIOS interrupt 11h -- Equipment determination
+ ************************************************************
+ */
+
+bios_11h:
+cs	movw	bios_equipment, %ax
+gs	movw	%ax, OFFS_AX(%bp)
+	xorw	%ax, %ax
+	ret
+
+
+/*
+ ************************************************************
+ * BIOS	interrupt 12h -- Get Memory Size
+ ************************************************************
+ */
+bios_12h:
+cs	movw	ram_in_64kb_chunks, %ax
+	cmpw	$0xa, %ax
+	ja	b12_more_than_640k
+	shlw	$6, %ax
+	jmp	b12_return
+b12_more_than_640k:
+	movw	$0x280, %ax
+b12_return:
+gs	movw	%ax, OFFS_AX(%bp)		/* return number of kilobytes in ax */
+
+gs	movw	OFFS_FLAGS(%bp), %ax
+	andw	$0xfffe, %ax			/* clear carry -- function succeeded */
+gs	movw	%ax, OFFS_FLAGS(%bp)
+
+	xorw	%ax, %ax
+	ret
+
+
+/*
+ ************************************************************
+ * BIOS interrupt 13h -- Disk services
+ ************************************************************
+ */
+bios_13h:
+gs	movw	OFFS_AX(%bp), %ax
+	shrw	$8, %ax
+	cmpw	$0x15, %ax
+	je	Lfunc_15h
+	movw	$0xffff, %ax
+	ret
+Lfunc_15h:
+gs	movw	OFFS_AX(%bp), %ax
+	andw	$0xff, %ax			/* return AH=0->drive not present */
+gs	movw	%ax, OFFS_AX(%bp)
+	xorw	%ax, %ax
+	ret
+
+
+/*
+ ***********************************************************
+ * BIOS interrupt 15h -- Miscellaneous services
+ ***********************************************************
+ */
+bios_15h:
+gs	movw	OFFS_AX(%bp), %ax
+	shrw	$8, %ax
+	cmpw	$0xc0, %ax
+	je	Lfunc_c0h
+	cmpw	$0xe8, %ax
+	je	Lfunc_e8h
+	cmpw	$0x88, %ax
+	je	Lfunc_88h
+	movw	$0xffff, %ax
+	ret
+
+Lfunc_c0h:					/* Return System Configuration Parameters (PS2 only) */
+gs	movw	OFFS_FLAGS(%bp), %ax
+	orw	$1, %ax				/* return carry -- function not supported */
+gs	movw	%ax, OFFS_FLAGS(%bp)
+	xorw	%ax, %ax
+	ret
+
+Lfunc_e8h:
+gs	movw	OFFS_AX(%bp), %ax
+	andw	$0xff, %ax
+	cmpw	$1, %ax
+	je	Lfunc_e801h
+gs	movw	OFFS_FLAGS(%bp), %ax
+	orw	$1, %ax				/* return carry -- function not supported */
+gs	movw	%ax, OFFS_FLAGS(%bp)
+	xorw	%ax, %ax
+	ret
+
+Lfunc_e801h:					/* Get memory size for >64M Configurations */
+cs	movw	ram_in_64kb_chunks, %ax
+	cmpw	$0x100, %ax
+	ja	e801_more_than_16mb
+	shlw	$6, %ax				/* multiply by 64 */
+	subw	$0x400, %ax			/* 1st meg does not count */
+
+gs	movw	%ax, OFFS_AX(%bp)		/* return memory size between 1M and 16M in 1kb chunks in AX and CX */
+gs	movw	%ax, OFFS_CX(%bp)
+gs	movw	$0, OFFS_BX(%bp)		/* set BX and DX to 0*/
+gs	movw	$0, OFFS_DX(%bp)
+gs	movw	OFFS_FLAGS(%bp), %ax
+	andw	$0xfffe, %ax			/* clear carry -- function succeeded */
+gs	movw	%ax, OFFS_FLAGS(%bp)
+	xorw	%ax, %ax
+	ret
+
+e801_more_than_16mb:
+	subw	$0x100, %ax			/* subtract 16MB */
+
+gs	movw	$0x3c00, OFFS_AX(%bp)		/* return 0x3c00 (16MB-1MB) in AX and CX */
+gs	movw	$0x3c00, OFFS_CX(%bp)
+gs	movw	%ax, OFFS_BX(%bp)		/* set BX and DX to number of 64kb chunks above 16MB */
+gs	movw	%ax, OFFS_DX(%bp)
+
+gs	movw	OFFS_FLAGS(%bp), %ax
+	andw	$0xfffe, %ax			/* clear carry -- function succeeded */
+gs	movw	%ax, OFFS_FLAGS(%bp)
+	xorw	%ax, %ax
+	ret
+
+Lfunc_88h:
+cs	movw	ram_in_64kb_chunks, %ax
+	cmpw	$0x100, %ax
+	jna	b88_not_more_than16
+	movw	$0x100, %ax
+b88_not_more_than16:
+	shlw	$6, %ax
+	subw	$0x400, %ax			/* 1st meg does not count */
+
+gs	movw	%ax, OFFS_AX(%bp)		/* return number of kilobytes between 16MB and 16MB in ax */
+
+gs	movw	OFFS_FLAGS(%bp), %ax
+	andw	$0xfffe, %ax			/* clear carry -- function succeeded */
+gs	movw	%ax, OFFS_FLAGS(%bp)
+
+	xorw	%ax, %ax
+	ret
+
+
+/*
+ ************************************************************
+ * BIOS interrupt 16h -- keyboard services
+ ************************************************************
+ */
+bios_16h:
+gs	movw	OFFS_AX(%bp), %ax
+	shrw	$8, %ax
+	cmpw	$0x03, %ax
+	je	Lfunc_03h
+	movw	$0xffff, %ax
+	ret
+Lfunc_03h:
+	xorw	%ax, %ax			/* do nothing -- function not supported */
+	ret
+
+/*
+ ************************************************************
+ * BIOS interrupt 1ah -- PCI bios
+ ************************************************************
+ */
+bios_1ah:
+gs	movw	OFFS_AX(%bp), %ax
+	cmpb	$0xb1, %ah
+	je	Lfunc_b1h
+	movw	$0xffff, %ax
+	ret
+Lfunc_b1h:
+	call	realmode_pci_bios
+	xorw	%ax, %ax			/* do nothing -- function not supported */
+	ret
+
+
+.globl ram_in_64kb_chunks
+.hidden ram_in_64kb_chunks
+.type ram_in_64kb_chunks, @function
+ram_in_64kb_chunks:
+	.word	0
+
+.globl bios_equipment
+.hidden bios_equipment
+.type bios_equipment, @function
+bios_equipment:
+	.word	0
diff --git a/arch/x86/lib/bios.h b/arch/x86/lib/bios.h
new file mode 100644
index 0000000..3c8d61a
--- /dev/null
+++ b/arch/x86/lib/bios.h
@@ -0,0 +1,92 @@
+/*
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _BIOS_H_
+#define _BIOS_H_
+
+#define OFFS_ES      0     /* 16bit */
+#define OFFS_GS      2     /* 16bit */
+#define OFFS_DS      4     /* 16bit */
+#define OFFS_EDI     6     /* 32bit */
+#define OFFS_DI      6     /* low 16 bits of EDI */
+#define OFFS_ESI     10    /* 32bit */
+#define OFFS_SI      10    /* low 16 bits of ESI */
+#define OFFS_EBP     14    /* 32bit */
+#define OFFS_BP      14    /* low 16 bits of EBP */
+#define OFFS_ESP     18    /* 32bit */
+#define OFFS_SP      18    /* low 16 bits of ESP */
+#define OFFS_EBX     22    /* 32bit */
+#define OFFS_BX      22    /* low 16 bits of EBX */
+#define OFFS_BL      22    /* low  8 bits of BX */
+#define OFFS_BH      23    /* high 8 bits of BX */
+#define OFFS_EDX     26    /* 32bit */
+#define OFFS_DX      26    /* low 16 bits of EBX */
+#define OFFS_DL      26    /* low  8 bits of BX */
+#define OFFS_DH      27    /* high 8 bits of BX */
+#define OFFS_ECX     30    /* 32bit */
+#define OFFS_CX      30    /* low 16 bits of EBX */
+#define OFFS_CL      30    /* low  8 bits of BX */
+#define OFFS_CH      31    /* high 8 bits of BX */
+#define OFFS_EAX     34    /* 32bit */
+#define OFFS_AX      34    /* low 16 bits of EBX */
+#define OFFS_AL      34    /* low  8 bits of BX */
+#define OFFS_AH      35    /* high 8 bits of BX */
+#define OFFS_VECTOR  38    /* 16bit */
+#define OFFS_IP      40    /* 16bit */
+#define OFFS_CS      42    /* 16bit */
+#define OFFS_FLAGS   44    /* 16bit */
+
+#define SEGMENT      0x40
+#define STACK	     0x800	/* stack at 0x40:0x800 -> 0x800 */
+
+/* save general registers */
+/* save some segments     */
+/* save callers stack segment .. */
+/* ... in gs */
+	/* setup my segments */
+	/* setup BIOS stackpointer */
+
+#define MAKE_BIOS_STACK \
+	pushal; \
+	pushw	%ds; \
+	pushw	%gs; \
+	pushw	%es; \
+	pushw	%ss; \
+	popw	%gs; \
+	movw	$SEGMENT, %ax; \
+	movw	%ax, %ds; \
+	movw	%ax, %es; \
+	movw	%ax, %ss; \
+	movw	%sp, %bp; \
+	movw	$STACK, %sp
+
+#define RESTORE_CALLERS_STACK \
+	pushw	%gs;		/* restore callers stack segment */ \
+	popw	%ss; \
+	movw	%bp, %sp;	/* restore stackpointer */ \
+	popw	%es;		/* restore segment selectors */ \
+	popw	%gs; \
+	popw	%ds; \
+	popal			/* restore GP registers */
+
+#endif
diff --git a/arch/x86/lib/bios_pci.S b/arch/x86/lib/bios_pci.S
new file mode 100644
index 0000000..9e412e5
--- /dev/null
+++ b/arch/x86/lib/bios_pci.S
@@ -0,0 +1,413 @@
+/*
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, daniel@omicron.se
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * x86 realmode assembly implementation of a PCI BIOS
+ * for platforms that use one PCI hose and configuration
+ * access type 1. (The common case for low-end PC's)
+ */
+
+#include "bios.h"
+
+#define PCI_BIOS_DEBUG
+
+.section .bios, "ax"
+.code16
+.globl realmode_pci_bios_call_entry
+.hidden realmode_pci_bios_call_entry
+.type realmode_pci_bios_call_entry, @function
+realmode_pci_bios_call_entry:
+	MAKE_BIOS_STACK
+	call realmode_pci_bios
+	RESTORE_CALLERS_STACK
+	ret
+
+
+.globl realmode_pci_bios
+realmode_pci_bios:
+gs	movw	OFFS_AX(%bp), %ax
+	cmpb	$1, %al
+	je	pci_bios_present
+	cmpb	$2, %al
+	je	pci_bios_find_device
+	cmpb	$3, %al
+	je	pci_bios_find_class
+	cmpb	$6, %al
+	je	pci_bios_generate_special_cycle
+	cmpb	$8, %al
+	je	pci_bios_read_cfg_byte
+	cmpb	$9, %al
+	je	pci_bios_read_cfg_word
+	cmpb	$10, %al
+	je	pci_bios_read_cfg_dword
+	cmpb	$11, %al
+	je	pci_bios_write_cfg_byte
+	cmpb	$12, %al
+	je	pci_bios_write_cfg_word
+	cmpb	$13, %al
+	je	pci_bios_write_cfg_dword
+	cmpb	$14, %al
+	je	pci_bios_get_irq_routing
+	cmpb	$15, %al
+	je	pci_bios_set_irq
+	jmp	unknown_function
+
+/*****************************************************************************/
+
+pci_bios_present:
+#ifdef PCI_BIOS_DEBUG
+cs	incl	num_pci_bios_present
+#endif
+	movl	$0x20494350, %eax
+gs	movl	%eax, OFFS_EDX(%bp)
+	movb	$0x01, %al
+gs	movb	%al, OFFS_AL(%bp)	/* We support cfg type 1 */
+	movw	$0x0210, %ax            /* version 2.10 */
+gs	movw	%ax, OFFS_BX(%bp)
+cs	movb	pci_last_bus, %al       /* last bus number */
+gs	movb	%al, OFFS_CL(%bp)
+	jmp	clear_carry
+
+/*****************************************************************************/
+
+/* device 0-31, function 0-7 */
+pci_bios_find_device:
+#ifdef PCI_BIOS_DEBUG
+cs	incl	num_pci_bios_find_device
+#endif
+gs	movw	OFFS_CX(%bp), %di
+	shll	$16, %edi
+gs	movw	OFFS_DX(%bp), %di       /* edi now holds device in upper 16
+					 * bits and vendor in lower 16 bits */
+gs	movw	OFFS_SI(%bp), %si
+	xorw	%bx, %bx                /* start at bus 0 dev 0 function 0 */
+pfd_loop:
+	xorw	%ax, %ax		/* dword 0 is vendor/device */
+	call	__pci_bios_select_register
+	movw	$0xcfc, %dx
+	inl	%dx, %eax
+	cmpl	%edi, %eax		/* our device ? */
+	je	pfd_found_one
+pfd_next_dev:
+	/* check for multi function devices */
+	movw	%bx, %ax
+	andw	$3, %ax
+	jnz	pfd_function_not_zero
+	movw	$0x000c, %ax
+	call	__pci_bios_select_register
+	movw	$0xcfe, %dx
+	inb	%dx, %al
+	andb	$0x80, %al
+	jz	pfd_not_multi_function
+pfd_function_not_zero:
+	incw	%bx			/* next function, overflows in to
+					 * device number, then bus number */
+	jmp	pfd_check_bus
+
+pfd_not_multi_function:
+	andw	$0xfff8, %bx            /* remove function bits */
+	addw	$0x0008, %bx            /* next device, overflows in to bus number */
+pfd_check_bus:
+cs	movb	pci_last_bus, %ah
+	cmpb	%ah, %bh
+	ja	pfd_not_found
+	jmp	pfd_loop
+pfd_found_one:
+	decw	%si
+	js	pfd_done
+	jmp	pfd_next_dev
+
+pfd_done:
+gs	movw	%bx, OFFS_BX(%bp)
+	jmp	clear_carry
+
+pfd_not_found:
+	movb	$0x86, %ah              /* device not found */
+	jmp	set_carry
+
+/*****************************************************************************/
+
+pci_bios_find_class:
+#ifdef PCI_BIOS_DEBUG
+cs	incl	num_pci_bios_find_class
+#endif
+gs	movl	OFFS_ECX(%bp), %edi
+	andl	$0x00ffffff, %edi       /* edi now holds class-code in lower 24 bits */
+gs	movw	OFFS_SI(%bp), %si
+	xorw	%bx, %bx                /* start at bus 0 dev 0 function 0 */
+pfc_loop:
+	movw	$8, %ax			/* dword 8 is class-code high 24bits */
+	call	__pci_bios_select_register
+	movw	$0xcfc, %dx
+	inl	%dx, %eax
+	shrl	$8, %eax
+	andl	$0x00ffffff, %eax
+	cmpl	%edi, %eax		/* our device ? */
+	je	pfc_found_one
+pfc_next_dev:
+	/* check for multi function devices */
+	andw	$3, %bx
+	jnz	pfc_function_not_zero
+	movw	$0x000c, %ax
+	call	__pci_bios_select_register
+	movw	$0xcfe, %dx
+	inb	%dx, %al
+	andb	$0x80, %al
+	jz	pfc_not_multi_function
+pfc_function_not_zero:
+	incw	%bx			/* next function, overflows in to
+					 * device number, then bus number */
+	jmp	pfc_check_bus
+
+pfc_not_multi_function:
+	andw	$0xfff8, %bx            /* remove function bits */
+	addw	$0x0008, %bx            /* next device, overflows in to bus number */
+pfc_check_bus:
+cs	movb	pci_last_bus, %ah
+	cmpb	%ah, %bh
+	ja	pfc_not_found
+	jmp	pfc_loop
+pfc_found_one:
+	decw	%si
+	js	pfc_done
+	jmp	pfc_next_dev
+
+pfc_done:
+gs	movw	%bx, OFFS_BX(%bp)
+	jmp	clear_carry
+
+pfc_not_found:
+	movb	$0x86, %ah              /* device not found */
+	jmp	set_carry
+
+/*****************************************************************************/
+
+pci_bios_generate_special_cycle:
+#ifdef PCI_BIOS_DEBUG
+cs	incl	num_pci_bios_generate_special_cycle
+#endif
+	movb	$0x81, %ah              /* function not supported */
+	jmp	set_carry
+
+/*****************************************************************************/
+
+pci_bios_read_cfg_byte:
+#ifdef PCI_BIOS_DEBUG
+cs	incl	num_pci_bios_read_cfg_byte
+#endif
+	call	pci_bios_select_register
+gs	movw	OFFS_DI(%bp), %dx
+	andw	$3, %dx
+	addw	$0xcfc, %dx
+	inb	%dx, %al
+gs	movb	%al, OFFS_CL(%bp)
+	jmp	clear_carry
+
+/*****************************************************************************/
+
+pci_bios_read_cfg_word:
+#ifdef PCI_BIOS_DEBUG
+cs	incl	num_pci_bios_read_cfg_word
+#endif
+	call	pci_bios_select_register
+gs	movw	OFFS_DI(%bp), %dx
+	andw	$2, %dx
+	addw	$0xcfc, %dx
+	inw	%dx, %ax
+gs	movw	%ax, OFFS_CX(%bp)
+	jmp	clear_carry
+
+
+/*****************************************************************************/
+
+pci_bios_read_cfg_dword:
+#ifdef PCI_BIOS_DEBUG
+cs	incl	num_pci_bios_read_cfg_dword
+#endif
+	call	pci_bios_select_register
+	movw	$0xcfc, %dx
+	inl	%dx, %eax
+gs	movl	%eax, OFFS_ECX(%bp)
+	jmp	clear_carry
+
+/*****************************************************************************/
+
+pci_bios_write_cfg_byte:
+#ifdef PCI_BIOS_DEBUG
+cs	incl	num_pci_bios_write_cfg_byte
+#endif
+	call	pci_bios_select_register
+gs	movw	OFFS_DI(%bp), %dx
+gs	movb	OFFS_CL(%bp), %al
+	andw	$3, %dx
+	addw	$0xcfc, %dx
+	outb	%al, %dx
+	jmp	clear_carry
+
+/*****************************************************************************/
+
+pci_bios_write_cfg_word:
+#ifdef PCI_BIOS_DEBUG
+cs	incl	num_pci_bios_write_cfg_word
+#endif
+	call	pci_bios_select_register
+gs	movw	OFFS_DI(%bp), %dx
+gs	movw	OFFS_CX(%bp), %ax
+	andw	$2, %dx
+	addw	$0xcfc, %dx
+	outw	%ax, %dx
+	jmp	clear_carry
+
+/*****************************************************************************/
+
+pci_bios_write_cfg_dword:
+#ifdef PCI_BIOS_DEBUG
+cs	incl	num_pci_bios_write_cfg_dword
+#endif
+	call	pci_bios_select_register
+gs	movl	OFFS_ECX(%bp), %eax
+	movw	$0xcfc, %dx
+	outl	%eax, %dx
+	jmp	clear_carry
+
+/*****************************************************************************/
+
+pci_bios_get_irq_routing:
+#ifdef PCI_BIOS_DEBUG
+cs	incl	num_pci_bios_get_irq_routing
+#endif
+	movb	$0x81, %ah              /* function not supported */
+	jmp	set_carry
+
+/*****************************************************************************/
+
+pci_bios_set_irq:
+#ifdef PCI_BIOS_DEBUG
+cs	incl	num_pci_bios_set_irq
+#endif
+	movb	$0x81, %ah              /* function not supported */
+	jmp	set_carry
+
+/*****************************************************************************/
+
+unknown_function:
+#ifdef PCI_BIOS_DEBUG
+cs	incl	num_pci_bios_unknown_function
+#endif
+	movb	$0x81, %ah              /* function not supported */
+	jmp	set_carry
+
+/*****************************************************************************/
+
+pci_bios_select_register:
+gs	movw	OFFS_BX(%bp), %bx
+gs	movw	OFFS_DI(%bp), %ax
+/* destroys eax, dx */
+__pci_bios_select_register:               /* BX holds device id, AX holds register index */
+	pushl	%ebx
+	andl	$0xfc, %eax
+	andl	$0xffff, %ebx
+	shll	$8, %ebx
+	orl	%ebx, %eax
+	orl	$0x80000000, %eax
+	movw	$0xcf8, %dx
+	outl	%eax, %dx
+	popl	%ebx
+	ret
+
+
+clear_carry:
+gs	movw	OFFS_FLAGS(%bp), %ax
+	andw	$0xfffe, %ax			/* clear carry -- function succeeded */
+gs	movw	%ax, OFFS_FLAGS(%bp)
+	xorw	%ax, %ax
+gs	movb	%ah, OFFS_AH(%bp)
+	ret
+
+set_carry:
+gs	movb	%ah, OFFS_AH(%bp)
+gs	movw	OFFS_FLAGS(%bp), %ax
+	orw	$1, %ax				/* return carry -- function not supported */
+gs	movw	%ax, OFFS_FLAGS(%bp)
+	movw	$-1, %ax
+	ret
+
+/*****************************************************************************/
+
+.globl pci_last_bus
+pci_last_bus:
+	.byte	0
+
+#ifdef PCI_BIOS_DEBUG
+.globl num_pci_bios_present
+num_pci_bios_present:
+	.long	0
+
+.globl num_pci_bios_find_device
+num_pci_bios_find_device:
+	.long	0
+
+.globl num_pci_bios_find_class
+num_pci_bios_find_class:
+	.long	0
+
+.globl num_pci_bios_generate_special_cycle
+num_pci_bios_generate_special_cycle:
+	.long 0
+
+.globl num_pci_bios_read_cfg_byte
+num_pci_bios_read_cfg_byte:
+	.long	0
+
+.globl num_pci_bios_read_cfg_word
+num_pci_bios_read_cfg_word:
+	.long	0
+
+.globl num_pci_bios_read_cfg_dword
+num_pci_bios_read_cfg_dword:
+	.long	0
+
+.globl num_pci_bios_write_cfg_byte
+num_pci_bios_write_cfg_byte:
+	.long	0
+
+.globl num_pci_bios_write_cfg_word
+num_pci_bios_write_cfg_word:
+	.long	0
+
+.globl num_pci_bios_write_cfg_dword
+num_pci_bios_write_cfg_dword:
+	.long	0
+
+.globl num_pci_bios_get_irq_routing
+num_pci_bios_get_irq_routing:
+	.long	0
+
+.globl num_pci_bios_set_irq
+num_pci_bios_set_irq:
+	.long	0
+
+.globl num_pci_bios_unknown_function
+num_pci_bios_unknown_function:
+	.long	0
+#endif
diff --git a/arch/x86/lib/bios_setup.c b/arch/x86/lib/bios_setup.c
new file mode 100644
index 0000000..6949b35
--- /dev/null
+++ b/arch/x86/lib/bios_setup.c
@@ -0,0 +1,241 @@
+/*
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * Partly based on msbios.c from rolo 1.6:
+ *----------------------------------------------------------------------
+ * (C) Copyright 2000
+ * Sysgo Real-Time Solutions GmbH
+ * Klein-Winternheim, Germany
+ *----------------------------------------------------------------------
+ */
+
+#include <common.h>
+#include <pci.h>
+#include <asm/realmode.h>
+#include <asm/io.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define NUMVECTS	256
+
+#define BIOS_DATA        ((char*)0x400)
+#define BIOS_DATA_SIZE   256
+#define BIOS_BASE        ((char*)0xf0000)
+#define BIOS_CS          0xf000
+
+extern ulong __bios_start;
+extern ulong __bios_size;
+
+/* these are defined in a 16bit segment and needs
+ * to be accessed with the RELOC_16_xxxx() macros below
+ */
+extern u16 ram_in_64kb_chunks;
+extern u16 bios_equipment;
+extern u8  pci_last_bus;
+
+extern void *rm_int00;
+extern void *rm_int01;
+extern void *rm_int02;
+extern void *rm_int03;
+extern void *rm_int04;
+extern void *rm_int05;
+extern void *rm_int06;
+extern void *rm_int07;
+extern void *rm_int08;
+extern void *rm_int09;
+extern void *rm_int0a;
+extern void *rm_int0b;
+extern void *rm_int0c;
+extern void *rm_int0d;
+extern void *rm_int0e;
+extern void *rm_int0f;
+extern void *rm_int10;
+extern void *rm_int11;
+extern void *rm_int12;
+extern void *rm_int13;
+extern void *rm_int14;
+extern void *rm_int15;
+extern void *rm_int16;
+extern void *rm_int17;
+extern void *rm_int18;
+extern void *rm_int19;
+extern void *rm_int1a;
+extern void *rm_int1b;
+extern void *rm_int1c;
+extern void *rm_int1d;
+extern void *rm_int1e;
+extern void *rm_int1f;
+extern void *rm_def_int;
+
+extern void *realmode_reset;
+extern void *realmode_pci_bios_call_entry;
+
+static int set_jmp_vector(int entry_point, void *target)
+{
+	if (entry_point & ~0xffff) {
+		return -1;
+	}
+
+	if (((u32)target-0xf0000) & ~0xffff) {
+		return -1;
+	}
+	printf("set_jmp_vector: 0xf000:%04x -> %p\n",
+	       entry_point, target);
+
+	/* jmp opcode */
+	writeb(0xea, 0xf0000 + entry_point);
+
+	/* offset */
+	writew(((u32)target-0xf0000), 0xf0000 + entry_point + 1);
+
+	/* segment */
+	writew(0xf000, 0xf0000 + entry_point + 3);
+
+	return 0;
+}
+
+
+/*
+ ************************************************************
+ * Install an interrupt vector
+ ************************************************************
+ */
+
+static void setvector(int vector, u16 segment, void *handler)
+{
+	u16 *ptr = (u16*)(vector*4);
+	ptr[0] = ((u32)handler - (segment << 4))&0xffff;
+	ptr[1] = segment;
+
+#if 0
+	printf("setvector: int%02x -> %04x:%04x\n",
+	       vector, ptr[1], ptr[0]);
+#endif
+}
+
+#define RELOC_16_LONG(seg, off) *(u32*)(seg << 4 | (u32)&off)
+#define RELOC_16_WORD(seg, off) *(u16*)(seg << 4 | (u32)&off)
+#define RELOC_16_BYTE(seg, off) *(u8*)(seg << 4 | (u32)&off)
+
+int bios_setup(void)
+{
+	ulong bios_start = (ulong)&__bios_start + gd->reloc_off;
+	ulong bios_size = (ulong)&__bios_size;
+
+	static int done=0;
+	int vector;
+#ifdef CONFIG_PCI
+	struct pci_controller *pri_hose;
+#endif
+	if (done) {
+		return 0;
+	}
+	done = 1;
+
+	if (bios_size > 65536) {
+		printf("BIOS too large (%ld bytes, max is 65536)\n",
+		       bios_size);
+		return -1;
+	}
+
+	memcpy(BIOS_BASE, (void*)bios_start, bios_size);
+
+	/* clear bda */
+	memset(BIOS_DATA, 0, BIOS_DATA_SIZE);
+
+	/* enter some values to the bda */
+	writew(0x3f8, BIOS_DATA);   /* com1 addr */
+	writew(0x2f8, BIOS_DATA+2); /* com2 addr */
+	writew(0x3e8, BIOS_DATA+4); /* com3 addr */
+	writew(0x2e8, BIOS_DATA+6); /* com4 addr */
+	writew(0x278, BIOS_DATA+8); /* lpt1 addr */
+	/*
+	 * The kernel wants to read the base memory size
+	 * from 40:13. Put a zero there to avoid an error message
+	 */
+	writew(0, BIOS_DATA+0x13);  /* base memory size */
+
+
+	/* setup realmode interrupt vectors */
+	for (vector = 0; vector < NUMVECTS; vector++) {
+		setvector(vector, BIOS_CS, &rm_def_int);
+	}
+
+	setvector(0x00, BIOS_CS, &rm_int00);
+	setvector(0x01, BIOS_CS, &rm_int01);
+	setvector(0x02, BIOS_CS, &rm_int02);
+	setvector(0x03, BIOS_CS, &rm_int03);
+	setvector(0x04, BIOS_CS, &rm_int04);
+	setvector(0x05, BIOS_CS, &rm_int05);
+	setvector(0x06, BIOS_CS, &rm_int06);
+	setvector(0x07, BIOS_CS, &rm_int07);
+	setvector(0x08, BIOS_CS, &rm_int08);
+	setvector(0x09, BIOS_CS, &rm_int09);
+	setvector(0x0a, BIOS_CS, &rm_int0a);
+	setvector(0x0b, BIOS_CS, &rm_int0b);
+	setvector(0x0c, BIOS_CS, &rm_int0c);
+	setvector(0x0d, BIOS_CS, &rm_int0d);
+	setvector(0x0e, BIOS_CS, &rm_int0e);
+	setvector(0x0f, BIOS_CS, &rm_int0f);
+	setvector(0x10, BIOS_CS, &rm_int10);
+	setvector(0x11, BIOS_CS, &rm_int11);
+	setvector(0x12, BIOS_CS, &rm_int12);
+	setvector(0x13, BIOS_CS, &rm_int13);
+	setvector(0x14, BIOS_CS, &rm_int14);
+	setvector(0x15, BIOS_CS, &rm_int15);
+	setvector(0x16, BIOS_CS, &rm_int16);
+	setvector(0x17, BIOS_CS, &rm_int17);
+	setvector(0x18, BIOS_CS, &rm_int18);
+	setvector(0x19, BIOS_CS, &rm_int19);
+	setvector(0x1a, BIOS_CS, &rm_int1a);
+	setvector(0x1b, BIOS_CS, &rm_int1b);
+	setvector(0x1c, BIOS_CS, &rm_int1c);
+	setvector(0x1d, BIOS_CS, &rm_int1d);
+	setvector(0x1e, BIOS_CS, &rm_int1e);
+	setvector(0x1f, BIOS_CS, &rm_int1f);
+
+	set_jmp_vector(0xfff0, &realmode_reset);
+	set_jmp_vector(0xfe6e, &realmode_pci_bios_call_entry);
+
+	/* fill in data area */
+	RELOC_16_WORD(0xf000, ram_in_64kb_chunks) = gd->ram_size >> 16;
+	RELOC_16_WORD(0xf000, bios_equipment) = 0; /* FixMe */
+
+	/* If we assume only one PCI hose, this PCI hose
+	 * will own PCI bus #0, and the last PCI bus of
+	 * that PCI hose will be the last PCI bus in the
+	 * system.
+	 * (This, ofcause break on multi hose systems,
+	 *  but our PCI BIOS only support one hose anyway)
+	 */
+#ifdef CONFIG_PCI
+	pri_hose = pci_bus_to_hose(0);
+	if (NULL != pri_hose) {
+		/* fill in last pci bus number for use by the realmode
+		 * PCI BIOS */
+		RELOC_16_BYTE(0xf000, pci_last_bus) = pri_hose->last_busno;
+	}
+#endif
+	return 0;
+}
diff --git a/arch/x86/lib/board.c b/arch/x86/lib/board.c
new file mode 100644
index 0000000..df54222
--- /dev/null
+++ b/arch/x86/lib/board.c
@@ -0,0 +1,480 @@
+/*
+ * (C) Copyright 2008-2011
+ * Graeme Russ, <graeme.russ@gmail.com>
+ *
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
+ *
+ * (C) Copyright 2002
+ * Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
+ *
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <watchdog.h>
+#include <command.h>
+#include <stdio_dev.h>
+#include <timestamp.h>
+#include <version.h>
+#include <malloc.h>
+#include <net.h>
+#include <ide.h>
+#include <serial.h>
+#include <asm/u-boot-x86.h>
+#include <elf.h>
+
+#ifdef CONFIG_BITBANGMII
+#include <miiphy.h>
+#endif
+
+/*
+ * Pointer to initial global data area
+ *
+ * Here we initialize it.
+ */
+#undef	XTRN_DECLARE_GLOBAL_DATA_PTR
+#define XTRN_DECLARE_GLOBAL_DATA_PTR	/* empty = allocate here */
+DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CONFIG_SYS_INIT_GD_ADDR);
+
+
+/* Exports from the Linker Script */
+extern ulong __text_start;
+extern ulong __data_end;
+extern ulong __rel_dyn_start;
+extern ulong __rel_dyn_end;
+extern ulong __bss_start;
+extern ulong __bss_end;
+
+const char version_string[] =
+	U_BOOT_VERSION" (" U_BOOT_DATE " - " U_BOOT_TIME ")";
+
+/************************************************************************
+ * Init Utilities							*
+ ************************************************************************
+ * Some of this code should be moved into the core functions,
+ * or dropped completely,
+ * but let's get it working (again) first...
+ */
+static int init_baudrate (void)
+{
+	char tmp[64];	/* long enough for environment variables */
+	int i = getenv_f("baudrate", tmp, 64);
+
+	gd->baudrate = (i != 0)
+			? (int) simple_strtoul (tmp, NULL, 10)
+			: CONFIG_BAUDRATE;
+
+	return (0);
+}
+
+static int display_banner (void)
+{
+
+	printf ("\n\n%s\n\n", version_string);
+/*
+	printf ("U-Boot code: %08lX -> %08lX  data: %08lX -> %08lX\n"
+		"        BSS: %08lX -> %08lX stack: %08lX -> %08lX\n",
+		i386boot_start, i386boot_romdata_start-1,
+		i386boot_romdata_dest, i386boot_romdata_dest+i386boot_romdata_size-1,
+		i386boot_bss_start, i386boot_bss_start+i386boot_bss_size-1,
+		i386boot_bss_start+i386boot_bss_size,
+		i386boot_bss_start+i386boot_bss_size+CONFIG_SYS_STACK_SIZE-1);
+
+*/
+
+	return (0);
+}
+
+static int display_dram_config (void)
+{
+	int i;
+
+	puts ("DRAM Configuration:\n");
+
+	for (i=0; i<CONFIG_NR_DRAM_BANKS; i++) {
+		printf ("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
+		print_size (gd->bd->bi_dram[i].size, "\n");
+	}
+
+	return (0);
+}
+
+static void display_flash_config (ulong size)
+{
+	puts ("Flash: ");
+	print_size (size, "\n");
+}
+
+/*
+ * Breath some life into the board...
+ *
+ * Initialize an SMC for serial comms, and carry out some hardware
+ * tests.
+ *
+ * The first part of initialization is running from Flash memory;
+ * its main purpose is to initialize the RAM so that we
+ * can relocate the monitor code to RAM.
+ */
+
+/*
+ * All attempts to come up with a "common" initialization sequence
+ * that works for all boards and architectures failed: some of the
+ * requirements are just _too_ different. To get rid of the resulting
+ * mess of board dependend #ifdef'ed code we now make the whole
+ * initialization sequence configurable to the user.
+ *
+ * The requirements for any new initalization function is simple: it
+ * receives a pointer to the "global data" structure as it's only
+ * argument, and returns an integer return code, where 0 means
+ * "continue" and != 0 means "fatal error, hang the system".
+ */
+typedef int (init_fnc_t) (void);
+
+static int calculate_relocation_address(void);
+static int copy_uboot_to_ram(void);
+static int clear_bss(void);
+static int do_elf_reloc_fixups(void);
+
+init_fnc_t *init_sequence_f[] = {
+	cpu_init_f,
+	board_early_init_f,
+	env_init,
+	init_baudrate,
+	serial_init,
+	console_init_f,
+	dram_init_f,
+	calculate_relocation_address,
+	copy_uboot_to_ram,
+	clear_bss,
+	do_elf_reloc_fixups,
+
+	NULL,
+};
+
+init_fnc_t *init_sequence_r[] = {
+	cpu_init_r,		/* basic cpu dependent setup */
+	board_early_init_r,	/* basic board dependent setup */
+	dram_init,		/* configure available RAM banks */
+	interrupt_init,		/* set up exceptions */
+	timer_init,
+	display_banner,
+	display_dram_config,
+
+	NULL,
+};
+
+gd_t *gd;
+
+static int calculate_relocation_address(void)
+{
+	void *text_start = &__text_start;
+	void *bss_end = &__bss_end;
+	void *dest_addr;
+	ulong rel_offset;
+
+	/* Calculate destination RAM Address and relocation offset */
+	dest_addr = (void *)gd->ram_size;
+	dest_addr -= CONFIG_SYS_STACK_SIZE;
+	dest_addr -= (bss_end - text_start);
+	rel_offset = dest_addr - text_start;
+
+	gd->start_addr_sp = gd->ram_size;
+	gd->relocaddr = (ulong)dest_addr;
+	gd->reloc_off = rel_offset;
+
+	return 0;
+}
+
+static int copy_uboot_to_ram(void)
+{
+	ulong *dst_addr = (ulong *)gd->relocaddr;
+	ulong *src_addr = (ulong *)&__text_start;
+	ulong *end_addr = (ulong *)&__data_end;
+
+	while (src_addr < end_addr)
+		*dst_addr++ = *src_addr++;
+
+	return 0;
+}
+
+static int clear_bss(void)
+{
+	void *bss_start = &__bss_start;
+	void *bss_end = &__bss_end;
+
+	ulong *dst_addr = (ulong *)(bss_start + gd->reloc_off);
+	ulong *end_addr = (ulong *)(bss_end + gd->reloc_off);;
+
+	while (dst_addr < end_addr)
+		*dst_addr++ = 0x00000000;
+
+	return 0;
+}
+
+static int do_elf_reloc_fixups(void)
+{
+	Elf32_Rel *re_src = (Elf32_Rel *)(&__rel_dyn_start);
+	Elf32_Rel *re_end = (Elf32_Rel *)(&__rel_dyn_end);
+
+	do {
+		if (re_src->r_offset >= CONFIG_SYS_TEXT_BASE)
+			if (*(Elf32_Addr *)(re_src->r_offset + gd->reloc_off) >= CONFIG_SYS_TEXT_BASE)
+				*(Elf32_Addr *)(re_src->r_offset + gd->reloc_off) += gd->reloc_off;
+	} while (re_src++ < re_end);
+
+	return 0;
+}
+
+/* Load U-Boot into RAM, initialize BSS, perform relocation adjustments */
+void board_init_f(ulong boot_flags)
+{
+	init_fnc_t **init_fnc_ptr;
+
+	gd->flags = boot_flags;
+
+	for (init_fnc_ptr = init_sequence_f; *init_fnc_ptr; ++init_fnc_ptr) {
+		if ((*init_fnc_ptr)() != 0)
+			hang();
+	}
+
+	gd->flags |= GD_FLG_RELOC;
+
+	/* Enter the relocated U-Boot! */
+	relocate_code(gd->start_addr_sp, gd, gd->relocaddr);
+
+	/* NOTREACHED - relocate_code() does not return */
+	while(1);
+}
+
+void board_init_r(gd_t *id, ulong dest_addr)
+{
+	char *s;
+	ulong size;
+	static bd_t bd_data;
+	static gd_t gd_data;
+	init_fnc_t **init_fnc_ptr;
+
+	show_boot_progress(0x21);
+
+	/* Global data pointer is now writable */
+	gd = &gd_data;
+	memcpy(gd, id, sizeof(gd_t));
+
+	/* compiler optimization barrier needed for GCC >= 3.4 */
+	__asm__ __volatile__("": : :"memory");
+
+	gd->bd = &bd_data;
+	memset (gd->bd, 0, sizeof (bd_t));
+	show_boot_progress(0x22);
+
+	gd->baudrate =  CONFIG_BAUDRATE;
+
+	mem_malloc_init((((ulong)dest_addr - CONFIG_SYS_MALLOC_LEN)+3)&~3,
+			CONFIG_SYS_MALLOC_LEN);
+
+	for (init_fnc_ptr = init_sequence_r; *init_fnc_ptr; ++init_fnc_ptr) {
+		if ((*init_fnc_ptr)() != 0)
+			hang ();
+	}
+	show_boot_progress(0x23);
+
+#ifdef CONFIG_SERIAL_MULTI
+	serial_initialize();
+#endif
+	/* configure available FLASH banks */
+	size = flash_init();
+	display_flash_config(size);
+	show_boot_progress(0x24);
+
+	show_boot_progress(0x25);
+
+	/* initialize environment */
+	env_relocate ();
+	show_boot_progress(0x26);
+
+
+#ifdef CONFIG_CMD_NET
+	/* IP Address */
+	bd_data.bi_ip_addr = getenv_IPaddr ("ipaddr");
+#endif
+
+#if defined(CONFIG_PCI)
+	/*
+	 * Do pci configuration
+	 */
+	pci_init();
+#endif
+
+	show_boot_progress(0x27);
+
+
+	stdio_init ();
+
+	jumptable_init ();
+
+	/* Initialize the console (after the relocation and devices init) */
+	console_init_r();
+
+#ifdef CONFIG_MISC_INIT_R
+	/* miscellaneous platform dependent initialisations */
+	misc_init_r();
+#endif
+
+#if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_CMD_IDE)
+	WATCHDOG_RESET();
+	puts ("PCMCIA:");
+	pcmcia_init();
+#endif
+
+#if defined(CONFIG_CMD_KGDB)
+	WATCHDOG_RESET();
+	puts("KGDB:  ");
+	kgdb_init();
+#endif
+
+	/* enable exceptions */
+	enable_interrupts();
+	show_boot_progress(0x28);
+
+#ifdef CONFIG_STATUS_LED
+	status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING);
+#endif
+
+	udelay(20);
+
+	set_timer (0);
+
+	/* Initialize from environment */
+	if ((s = getenv ("loadaddr")) != NULL) {
+		load_addr = simple_strtoul (s, NULL, 16);
+	}
+#if defined(CONFIG_CMD_NET)
+	if ((s = getenv ("bootfile")) != NULL) {
+		copy_filename (BootFile, s, sizeof (BootFile));
+	}
+#endif
+
+	WATCHDOG_RESET();
+
+#if defined(CONFIG_CMD_IDE)
+	WATCHDOG_RESET();
+	puts("IDE:   ");
+	ide_init();
+#endif
+
+#if defined(CONFIG_CMD_SCSI)
+	WATCHDOG_RESET();
+	puts("SCSI:  ");
+	scsi_init();
+#endif
+
+#if defined(CONFIG_CMD_DOC)
+	WATCHDOG_RESET();
+	puts("DOC:   ");
+	doc_init();
+#endif
+
+#ifdef CONFIG_BITBANGMII
+	bb_miiphy_init();
+#endif
+#if defined(CONFIG_CMD_NET)
+#if defined(CONFIG_NET_MULTI)
+	WATCHDOG_RESET();
+	puts("Net:   ");
+#endif
+	eth_initialize(gd->bd);
+#endif
+
+#if ( defined(CONFIG_CMD_NET)) && (0)
+	WATCHDOG_RESET();
+# ifdef DEBUG
+	puts ("Reset Ethernet PHY\n");
+# endif
+	reset_phy();
+#endif
+
+#ifdef CONFIG_LAST_STAGE_INIT
+	WATCHDOG_RESET();
+	/*
+	 * Some parts can be only initialized if all others (like
+	 * Interrupts) are up and running (i.e. the PC-style ISA
+	 * keyboard).
+	 */
+	last_stage_init();
+#endif
+
+
+#ifdef CONFIG_POST
+	post_run (NULL, POST_RAM | post_bootmode_get(0));
+#endif
+
+
+	show_boot_progress(0x29);
+
+	/* main_loop() can return to retry autoboot, if so just run it again. */
+	for (;;) {
+		main_loop();
+	}
+
+	/* NOTREACHED - no way out of command loop except booting */
+}
+
+void hang (void)
+{
+	puts ("### ERROR ### Please RESET the board ###\n");
+	for (;;);
+}
+
+unsigned long do_go_exec (ulong (*entry)(int, char * const []), int argc, char * const argv[])
+{
+	unsigned long ret = 0;
+	char **argv_tmp;
+
+	/*
+	 * x86 does not use a dedicated register to pass the pointer to
+	 * the global_data, so it is instead passed as argv[-1]. By using
+	 * argv[-1], the called 'Application' can use the contents of
+	 * argv natively. However, to safely use argv[-1] a new copy of
+	 * argv is needed with the extra element
+	 */
+	argv_tmp = malloc(sizeof(char *) * (argc + 1));
+
+	if (argv_tmp) {
+		argv_tmp[0] = (char *)gd;
+
+		memcpy(&argv_tmp[1], argv, (size_t)(sizeof(char *) * argc));
+
+		ret = (entry) (argc, &argv_tmp[1]);
+		free(argv_tmp);
+	}
+
+	return ret;
+}
+
+void setup_pcat_compatibility(void)
+	__attribute__((weak, alias("__setup_pcat_compatibility")));
+
+void __setup_pcat_compatibility(void)
+{
+}
diff --git a/arch/x86/lib/bootm.c b/arch/x86/lib/bootm.c
new file mode 100644
index 0000000..a21a21f
--- /dev/null
+++ b/arch/x86/lib/bootm.c
@@ -0,0 +1,97 @@
+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * Copyright (C) 2001  Erik Mouw (J.A.K.Mouw@its.tudelft.nl)
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <command.h>
+#include <image.h>
+#include <u-boot/zlib.h>
+#include <asm/byteorder.h>
+#include <asm/zimage.h>
+
+/*cmd_boot.c*/
+int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
+{
+	void		*base_ptr;
+	ulong		os_data, os_len;
+	image_header_t	*hdr;
+
+#if defined(CONFIG_FIT)
+	const void	*data;
+	size_t		len;
+#endif
+
+	if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
+		return 1;
+
+	if (images->legacy_hdr_valid) {
+		hdr = images->legacy_hdr_os;
+		if (image_check_type (hdr, IH_TYPE_MULTI)) {
+			/* if multi-part image, we need to get first subimage */
+			image_multi_getimg (hdr, 0, &os_data, &os_len);
+		} else {
+			/* otherwise get image data */
+			os_data = image_get_data (hdr);
+			os_len = image_get_data_size (hdr);
+		}
+#if defined(CONFIG_FIT)
+	} else if (images->fit_uname_os) {
+		ret = fit_image_get_data (images->fit_hdr_os,
+					images->fit_noffset_os, &data, &len);
+		if (ret) {
+			puts ("Can't get image data/size!\n");
+			goto error;
+		}
+		os_data = (ulong)data;
+		os_len = (ulong)len;
+#endif
+	} else {
+		puts ("Could not find kernel image!\n");
+		goto error;
+	}
+
+	base_ptr = load_zimage ((void*)os_data, os_len,
+			images->rd_start, images->rd_end - images->rd_start, 0);
+
+	if (NULL == base_ptr) {
+		printf ("## Kernel loading failed ...\n");
+		goto error;
+
+	}
+
+#ifdef DEBUG
+	printf ("## Transferring control to Linux (at address %08x) ...\n",
+		(u32)base_ptr);
+#endif
+
+	/* we assume that the kernel is in place */
+	printf("\nStarting kernel ...\n\n");
+
+	boot_zimage(base_ptr);
+	/* does not return */
+
+error:
+	return 1;
+}
diff --git a/arch/x86/lib/interrupts.c b/arch/x86/lib/interrupts.c
new file mode 100644
index 0000000..a2c598f
--- /dev/null
+++ b/arch/x86/lib/interrupts.c
@@ -0,0 +1,161 @@
+/*
+ * (C) Copyright 2009
+ * Graeme Russ, <graeme.russ@gmail.com>
+ *
+ * (C) Copyright 2007
+ * Daniel Hellstrom, Gaisler Research, <daniel@gaisler.com>
+ *
+ * (C) Copyright 2006
+ * Detlev Zundel, DENX Software Engineering, <dzu@denx.de>
+ *
+ * (C) Copyright -2003
+ * Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
+ *
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
+ *
+ * (C) Copyright 2001
+ * Josh Huber, Mission Critical Linux, Inc, <huber@mclx.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * This file contains the high-level API for the interrupt sub-system
+ * of the x86 port of U-Boot. Most of the functionality has been
+ * shamelessly stolen from the leon2 / leon3 ports of U-Boot.
+ * Daniel Hellstrom, Detlev Zundel, Wolfgang Denk and Josh Huber are
+ * credited for the corresponding work on those ports. The original
+ * interrupt handling routines for the x86 port were written by
+ * Daniel Engström
+ */
+
+#include <common.h>
+#include <asm/interrupt.h>
+
+struct irq_action {
+	interrupt_handler_t *handler;
+	void *arg;
+	unsigned int count;
+};
+
+static struct irq_action irq_handlers[CONFIG_SYS_NUM_IRQS] = { {0} };
+static int spurious_irq_cnt = 0;
+static int spurious_irq = 0;
+
+void irq_install_handler(int irq, interrupt_handler_t *handler, void *arg)
+{
+	int status;
+
+	if (irq < 0 || irq >= CONFIG_SYS_NUM_IRQS) {
+		printf("irq_install_handler: bad irq number %d\n", irq);
+		return;
+	}
+
+	if (irq_handlers[irq].handler != NULL)
+		printf("irq_install_handler: 0x%08lx replacing 0x%08lx\n",
+		       (ulong) handler,
+		       (ulong) irq_handlers[irq].handler);
+
+	status = disable_interrupts ();
+
+	irq_handlers[irq].handler = handler;
+	irq_handlers[irq].arg = arg;
+	irq_handlers[irq].count = 0;
+
+	unmask_irq(irq);
+
+	if (status)
+		enable_interrupts();
+
+	return;
+}
+
+void irq_free_handler(int irq)
+{
+	int status;
+
+	if (irq < 0 || irq >= CONFIG_SYS_NUM_IRQS) {
+		printf("irq_free_handler: bad irq number %d\n", irq);
+		return;
+	}
+
+	status = disable_interrupts ();
+
+	mask_irq(irq);
+
+	irq_handlers[irq].handler = NULL;
+	irq_handlers[irq].arg = NULL;
+
+	if (status)
+		enable_interrupts();
+
+	return;
+}
+
+void do_irq(int hw_irq)
+{
+	int irq = hw_irq - 0x20;
+
+	if (irq < 0 || irq >= CONFIG_SYS_NUM_IRQS) {
+		printf("do_irq: bad irq number %d\n", irq);
+		return;
+	}
+
+	if (irq_handlers[irq].handler) {
+		mask_irq(irq);
+
+		irq_handlers[irq].handler(irq_handlers[irq].arg);
+		irq_handlers[irq].count++;
+
+		unmask_irq(irq);
+		specific_eoi(irq);
+
+	} else {
+		if ((irq & 7) != 7) {
+			spurious_irq_cnt++;
+			spurious_irq = irq;
+		}
+	}
+}
+
+#if defined(CONFIG_CMD_IRQ)
+int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	int irq;
+
+	printf("Spurious IRQ: %u, last unknown IRQ: %d\n",
+	       spurious_irq_cnt, spurious_irq);
+
+	printf ("Interrupt-Information:\n");
+	printf ("Nr  Routine   Arg       Count\n");
+
+	for (irq = 0; irq <= CONFIG_SYS_NUM_IRQS; irq++) {
+		if (irq_handlers[irq].handler != NULL) {
+			printf ("%02d  %08lx  %08lx  %d\n",
+					irq,
+					(ulong)irq_handlers[irq].handler,
+					(ulong)irq_handlers[irq].arg,
+					irq_handlers[irq].count);
+		}
+	}
+
+	return 0;
+}
+#endif
diff --git a/arch/x86/lib/pcat_interrupts.c b/arch/x86/lib/pcat_interrupts.c
new file mode 100644
index 0000000..364c435
--- /dev/null
+++ b/arch/x86/lib/pcat_interrupts.c
@@ -0,0 +1,132 @@
+/*
+ * (C) Copyright 2009
+ * Graeme Russ, <graeme.russ@gmail.com>
+ *
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * This file provides the interrupt handling functionality for systems
+ * based on the standard PC/AT architecture using two cascaded i8259
+ * Programmable Interrupt Controllers.
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/i8259.h>
+#include <asm/ibmpc.h>
+#include <asm/interrupt.h>
+
+#if CONFIG_SYS_NUM_IRQS != 16
+#error "CONFIG_SYS_NUM_IRQS must equal 16 if CONFIG_SYS_NUM_IRQS is defined"
+#endif
+
+int interrupt_init(void)
+{
+	u8 i;
+
+	disable_interrupts();
+
+	/* Mask all interrupts */
+	outb(0xff, MASTER_PIC + IMR);
+	outb(0xff, SLAVE_PIC + IMR);
+
+	/* Master PIC */
+	/* Place master PIC interrupts at INT20 */
+	/* ICW3, One slave PIC is present */
+	outb(ICW1_SEL|ICW1_EICW4, MASTER_PIC + ICW1);
+	outb(0x20, MASTER_PIC + ICW2);
+	outb(IR2, MASTER_PIC + ICW3);
+	outb(ICW4_PM, MASTER_PIC + ICW4);
+
+	for (i = 0; i < 8; i++)
+		outb(OCW2_SEOI | i, MASTER_PIC + OCW2);
+
+	/* Slave PIC */
+	/* Place slave PIC interrupts at INT28 */
+	/* Slave ID */
+	outb(ICW1_SEL|ICW1_EICW4, SLAVE_PIC + ICW1);
+	outb(0x28, SLAVE_PIC + ICW2);
+	outb(0x02, SLAVE_PIC + ICW3);
+	outb(ICW4_PM, SLAVE_PIC + ICW4);
+
+	for (i = 0; i < 8; i++)
+		outb(OCW2_SEOI | i, SLAVE_PIC + OCW2);
+
+	/*
+	 * Enable cascaded interrupts by unmasking the cascade IRQ pin of
+	 * the master PIC
+	 */
+	unmask_irq (2);
+
+	enable_interrupts();
+
+	return 0;
+}
+
+void mask_irq(int irq)
+{
+	int imr_port;
+
+	if (irq >= CONFIG_SYS_NUM_IRQS)
+		return;
+
+	if (irq > 7)
+		imr_port = SLAVE_PIC + IMR;
+	else
+		imr_port = MASTER_PIC + IMR;
+
+	outb(inb(imr_port) | (1 << (irq & 7)), imr_port);
+}
+
+void unmask_irq(int irq)
+{
+	int imr_port;
+
+	if (irq >= CONFIG_SYS_NUM_IRQS)
+		return;
+
+	if (irq > 7)
+		imr_port = SLAVE_PIC + IMR;
+	else
+		imr_port = MASTER_PIC + IMR;
+
+	outb(inb(imr_port) & ~(1 << (irq & 7)), imr_port);
+}
+
+void specific_eoi(int irq)
+{
+	if (irq >= CONFIG_SYS_NUM_IRQS)
+		return;
+
+	if (irq > 7) {
+		/*
+		 *  IRQ is on the slave - Issue a corresponding EOI to the
+		 *  slave PIC and an EOI for IRQ2 (the cascade interrupt)
+		 *  on the master PIC
+		 */
+		outb(OCW2_SEOI | (irq & 7), SLAVE_PIC + OCW2);
+		irq = SEOI_IR2;
+	}
+
+	outb(OCW2_SEOI | irq, MASTER_PIC + OCW2);
+}
diff --git a/arch/x86/lib/pcat_timer.c b/arch/x86/lib/pcat_timer.c
new file mode 100644
index 0000000..1911c6c
--- /dev/null
+++ b/arch/x86/lib/pcat_timer.c
@@ -0,0 +1,107 @@
+/*
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/i8254.h>
+#include <asm/ibmpc.h>
+#include <asm/interrupt.h>
+
+#define TIMER0_VALUE 0x04aa /* 1kHz 1.9318MHz / 1000 */
+#define TIMER2_VALUE 0x0a8e /* 440Hz */
+
+static int timer_init_done = 0;
+
+int timer_init(void)
+{
+	/* initialize timer 0 and 2
+	 *
+	 * Timer 0 is used to increment system_tick 1000 times/sec
+	 * Timer 1 was used for DRAM refresh in early PC's
+	 * Timer 2 is used to drive the speaker
+	 * (to stasrt a beep: write 3 to port 0x61,
+	 * to stop it again: write 0)
+	 */
+	outb (PIT_CMD_CTR0 | PIT_CMD_BOTH | PIT_CMD_MODE2,
+	      PIT_BASE + PIT_COMMAND);
+	outb (TIMER0_VALUE & 0xff, PIT_BASE + PIT_T0);
+	outb (TIMER0_VALUE >> 8, PIT_BASE + PIT_T0);
+
+	outb (PIT_CMD_CTR2 | PIT_CMD_BOTH | PIT_CMD_MODE3,
+	      PIT_BASE + PIT_COMMAND);
+	outb (TIMER2_VALUE & 0xff, PIT_BASE + PIT_T2);
+	outb (TIMER2_VALUE >> 8, PIT_BASE + PIT_T2);
+
+	irq_install_handler (0, timer_isr, NULL);
+	unmask_irq (0);
+
+	timer_init_done = 1;
+
+	return 0;
+}
+
+static u16 read_pit(void)
+{
+	u8 low;
+
+	outb (PIT_CMD_LATCH, PIT_BASE + PIT_COMMAND);
+	low = inb (PIT_BASE + PIT_T0);
+
+	return ((inb (PIT_BASE + PIT_T0) << 8) | low);
+}
+
+/* this is not very exact */
+void __udelay (unsigned long usec)
+{
+	int counter;
+	int wraps;
+
+	if (timer_init_done)
+	{
+		counter = read_pit ();
+		wraps = usec / 1000;
+		usec = usec % 1000;
+
+		usec *= 1194;
+		usec /= 1000;
+		usec += counter;
+
+		while (usec > 1194) {
+			usec -= 1194;
+			wraps++;
+		}
+
+		while (1) {
+			int new_count = read_pit ();
+
+			if (((new_count < usec) && !wraps) || wraps < 0)
+				break;
+
+			if (new_count > counter)
+				wraps--;
+
+			counter = new_count;
+		}
+	}
+
+}
diff --git a/arch/x86/lib/pci.c b/arch/x86/lib/pci.c
new file mode 100644
index 0000000..e791e88
--- /dev/null
+++ b/arch/x86/lib/pci.c
@@ -0,0 +1,150 @@
+/*
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <pci.h>
+#include <asm/io.h>
+#include <asm/pci.h>
+
+#undef PCI_ROM_SCAN_VERBOSE
+
+int pci_shadow_rom(pci_dev_t dev, unsigned char *dest)
+{
+	struct pci_controller *hose;
+	int res = -1;
+	int i;
+
+	u32 rom_addr;
+	u32 addr_reg;
+	u32 size;
+
+	u16 vendor;
+	u16 device;
+	u32 class_code;
+
+	hose = pci_bus_to_hose(PCI_BUS(dev));
+#if 0
+	printf("pci_shadow_rom() asked to shadow device %x to %x\n",
+	       dev, (u32)dest);
+#endif
+	pci_read_config_word(dev, PCI_VENDOR_ID, &vendor);
+	pci_read_config_word(dev, PCI_DEVICE_ID, &device);
+	pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_code);
+
+	class_code &= 0xffffff00;
+	class_code >>= 8;
+
+	debug("PCI Header Vendor %04x device %04x class %06x\n",
+	       vendor, device, class_code);
+
+	/* Enable the rom addess decoder */
+	pci_write_config_dword(dev, PCI_ROM_ADDRESS, (u32)PCI_ROM_ADDRESS_MASK);
+	pci_read_config_dword(dev, PCI_ROM_ADDRESS, &addr_reg);
+
+	if (!addr_reg) {
+		/* register unimplemented */
+		printf("pci_chadow_rom: device do not seem to have a rom\n");
+		return -1;
+	}
+
+	size = (~(addr_reg&PCI_ROM_ADDRESS_MASK))+1;
+
+	debug("ROM is %d bytes\n", size);
+
+	rom_addr = pci_get_rom_window(hose, size);
+
+	debug("ROM mapped at %x\n", rom_addr);
+
+	pci_write_config_dword(dev, PCI_ROM_ADDRESS,
+			       pci_phys_to_mem(dev, rom_addr)
+			       |PCI_ROM_ADDRESS_ENABLE);
+
+
+	for (i=rom_addr;i<rom_addr+size; i+=512) {
+
+
+		if (readw(i) == 0xaa55) {
+			u32 pci_data;
+#ifdef PCI_ROM_SCAN_VERBOSE
+			printf("ROM signature found\n");
+#endif
+			pci_data = readw(0x18+i);
+			pci_data += i;
+
+			if (0==memcmp((void*)pci_data, "PCIR", 4)) {
+#ifdef PCI_ROM_SCAN_VERBOSE
+				printf("Fount PCI rom image at offset %d\n", i-rom_addr);
+				printf("Vendor %04x device %04x class %06x\n",
+				       readw(pci_data+4), readw(pci_data+6),
+				       readl(pci_data+0x0d)&0xffffff);
+				printf("%s\n",
+				       (readw(pci_data+0x15) &0x80)?
+				       "Last image":"More images follow");
+				switch	(readb(pci_data+0x14)) {
+				case 0:
+					printf("X86 code\n");
+					break;
+				case 1:
+					printf("Openfirmware code\n");
+					break;
+				case 2:
+					printf("PARISC code\n");
+					break;
+				}
+				printf("Image size %d\n", readw(pci_data+0x10) * 512);
+#endif
+				/* FixMe: I think we should compare the class code
+				 * bytes as well but I have no reference on the
+				 * exact order of these bytes in the PCI ROM header */
+				if (readw(pci_data+4) == vendor &&
+				    readw(pci_data+6) == device &&
+				    /* (readl(pci_data+0x0d)&0xffffff) == class_code && */
+				    readb(pci_data+0x14) == 0 /* x86 code image */ ) {
+#ifdef PCI_ROM_SCAN_VERBOSE
+					printf("Suitable ROM image found, copying\n");
+#endif
+					memmove(dest, (void*)rom_addr, readw(pci_data+0x10) * 512);
+					res = 0;
+					break;
+
+				}
+				if (readw(pci_data+0x15) &0x80) {
+					break;
+				}
+			}
+		}
+
+	}
+
+#ifdef PCI_ROM_SCAN_VERBOSE
+	if (res) {
+		printf("No suitable image found\n");
+	}
+#endif
+	/* disable PAR register and PCI device ROM address devocer */
+	pci_remove_rom_window(hose, rom_addr);
+
+	pci_write_config_dword(dev, PCI_ROM_ADDRESS, 0);
+
+	return res;
+}
diff --git a/arch/x86/lib/pci_type1.c b/arch/x86/lib/pci_type1.c
new file mode 100644
index 0000000..8ce5b33
--- /dev/null
+++ b/arch/x86/lib/pci_type1.c
@@ -0,0 +1,66 @@
+/*
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * Support for type PCI configuration cycles.
+ * based on pci_indirect.c
+ */
+#include <common.h>
+#include <asm/io.h>
+#include <pci.h>
+
+#define cfg_read(val, addr, op)	*val = op((int)(addr))
+#define cfg_write(val, addr, op)	op((val), (int)(addr))
+
+#define TYPE1_PCI_OP(rw, size, type, op, mask)				\
+static int								\
+type1_##rw##_config_##size(struct pci_controller *hose,			\
+			      pci_dev_t dev, int offset, type val)	\
+{									\
+	outl(dev | (offset & 0xfc) | 0x80000000, (int)hose->cfg_addr);	\
+	cfg_##rw(val, hose->cfg_data + (offset & mask), op);		\
+	return 0;							\
+}
+
+
+TYPE1_PCI_OP(read, byte, u8 *, inb, 3)
+TYPE1_PCI_OP(read, word, u16 *, inw, 2)
+TYPE1_PCI_OP(read, dword, u32 *, inl, 0)
+
+TYPE1_PCI_OP(write, byte, u8, outb, 3)
+TYPE1_PCI_OP(write, word, u16, outw, 2)
+TYPE1_PCI_OP(write, dword, u32, outl, 0)
+
+void pci_setup_type1(struct pci_controller* hose, u32 cfg_addr, u32 cfg_data)
+{
+	pci_set_ops(hose,
+		    type1_read_config_byte,
+		    type1_read_config_word,
+		    type1_read_config_dword,
+		    type1_write_config_byte,
+		    type1_write_config_word,
+		    type1_write_config_dword);
+
+	hose->cfg_addr = (unsigned int *) cfg_addr;
+	hose->cfg_data = (unsigned char *) cfg_data;
+}
diff --git a/arch/x86/lib/realmode.c b/arch/x86/lib/realmode.c
new file mode 100644
index 0000000..5be827c
--- /dev/null
+++ b/arch/x86/lib/realmode.c
@@ -0,0 +1,96 @@
+/*
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/ptrace.h>
+#include <asm/realmode.h>
+
+#define REALMODE_MAILBOX ((char*)0xe00)
+
+extern ulong __realmode_start;
+extern ulong __realmode_size;
+extern char realmode_enter;
+
+int realmode_setup(void)
+{
+	ulong realmode_start = (ulong)&__realmode_start + gd->reloc_off;
+	ulong realmode_size = (ulong)&__realmode_size;
+
+	/* copy the realmode switch code */
+	if (realmode_size > (REALMODE_MAILBOX - (char *)REALMODE_BASE)) {
+		printf("realmode switch too large (%ld bytes, max is %d)\n",
+		       realmode_size,
+		       (REALMODE_MAILBOX - (char *)REALMODE_BASE));
+		return -1;
+	}
+
+	memcpy((char *)REALMODE_BASE, (void *)realmode_start, realmode_size);
+	asm("wbinvd\n");
+
+	return 0;
+}
+
+int enter_realmode(u16 seg, u16 off, struct pt_regs *in, struct pt_regs *out)
+{
+
+	/* setup out thin bios emulation */
+	if (bios_setup())
+		return -1;
+
+	if (realmode_setup())
+		return -1;
+
+	in->eip = off;
+	in->xcs = seg;
+	if (3>(in->esp & 0xffff)) {
+		printf("Warning: entering realmode with sp < 4 will fail\n");
+	}
+
+	memcpy(REALMODE_MAILBOX, in, sizeof(struct pt_regs));
+	asm("wbinvd\n");
+
+	__asm__ volatile (
+		 "lcall $0x20,%0\n"  : :  "i" (&realmode_enter) );
+
+	asm("wbinvd\n");
+	memcpy(out, REALMODE_MAILBOX, sizeof(struct pt_regs));
+
+	return out->eax;
+}
+
+
+/* This code is supposed to access a realmode interrupt
+ * it does currently not work for me */
+int enter_realmode_int(u8 lvl, struct pt_regs *in, struct pt_regs *out)
+{
+	/* place two instructions at 0x700 */
+	writeb(0xcd, 0x700);  /* int $lvl */
+	writeb(lvl, 0x701);
+	writeb(0xcb, 0x702);  /* lret */
+	asm("wbinvd\n");
+
+	enter_realmode(0x00, 0x700, in, out);
+
+	return out->eflags&1;
+}
diff --git a/arch/x86/lib/realmode_switch.S b/arch/x86/lib/realmode_switch.S
new file mode 100644
index 0000000..fce4ecc
--- /dev/null
+++ b/arch/x86/lib/realmode_switch.S
@@ -0,0 +1,221 @@
+/*
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, daniel@omicron.se
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/* 32bit -> 16bit -> 32bit mode switch code */
+
+/*
+ * Stack frame at 0xe00
+ *	e00 ebx;
+ *	e04 ecx;
+ *	e08 edx;
+ *	e0c esi;
+ *	e10 edi;
+ *	e14 ebp;
+ *	e18 eax;
+ *	e1c ds;
+ *	e20 es;
+ *	e24 fs;
+ *	e28 gs;
+ *	e2c orig_eax;
+ *	e30 eip;
+ *	e34 cs;
+ *	e38 eflags;
+ *	e3c esp;
+ *	e40 ss;
+ */
+
+#define a32		.byte 0x67;		/* address size prefix 32 */
+#define o32		.byte 0x66;		/* operand size prefix 32 */
+
+.section .realmode, "ax"
+.code16
+						/* 16bit protected mode code here */
+.globl realmode_enter
+realmode_enter:
+o32	pusha
+o32	pushf
+	cli
+	sidt	saved_idt
+	sgdt	saved_gdt
+	movl	%esp, %eax
+	movl	%eax, saved_protected_mode_esp
+
+	movl	$0x10, %eax
+	movl	%eax, %esp
+	movw	$0x28, %ax
+	movw	%ax, %ds
+	movw	%ax, %es
+	movw	%ax, %fs
+	movw	%ax, %gs
+
+	lidt	realmode_idt_ptr
+	movl	%cr0, %eax			/* Go back into real mode by */
+	andl	$0x7ffffffe, %eax		/* clearing PE to 0 */
+	movl	%eax, %cr0
+	ljmp	$0x0,$do_realmode		/* switch to real mode */
+
+do_realmode:					/* realmode code from here */
+	movw	%cs,%ax
+	movw	%ax,%ds
+	movw	%ax,%es
+	movw	%ax,%fs
+	movw	%ax,%gs
+
+						/* create a temporary stack */
+
+	movw	$0xc0, %ax
+	movw	%ax, %ss
+	movw	$0x200, %ax
+	movw	%ax, %sp
+
+	popl	%ebx
+	popl	%ecx
+	popl	%edx
+	popl	%esi
+	popl	%edi
+	popl	%ebp
+	popl	%eax
+	movl	%eax, temp_eax
+	popl	%eax
+	movw	%ax, %ds
+	popl	%eax
+	movw	%ax, %es
+	popl	%eax
+	movw	%ax, %fs
+	popl	%eax
+	movw	%ax, %gs
+	popl	%eax				/* orig_eax */
+	popl	%eax
+cs	movw	%ax, temp_ip
+	popl	%eax
+cs	movw	%ax, temp_cs
+o32	popf
+	popl	%eax
+	popw	%ss
+	movl	%eax, %esp
+cs	movl	temp_eax, %eax
+	wbinvd					/* self-modifying code,
+						 * better flush the cache */
+
+	.byte	0x9a				/* lcall */
+temp_ip:
+	.word	0				/* new ip */
+temp_cs:
+	.word	0				/* new cs */
+realmode_ret:
+						/* save eax, esp and ss */
+cs	movl	%eax, saved_eax
+	movl	%esp, %eax
+cs	movl	%eax, saved_esp
+	movw	%ss, %ax
+cs	movw	%ax, saved_ss
+
+	/* restore the stack, note that we set sp to 0x244;
+	 * pt_regs is 0x44 bytes long and we push the structure
+	 * backwards on to the stack, bottom first */
+
+	movw	$0xc0, %ax
+	movw	%ax, %ss
+	movw	$0x244, %ax
+	movw	%ax, %sp
+
+	xorl	%eax,%eax
+cs	movw	saved_ss, %ax
+	pushl	%eax
+cs	movl	saved_esp, %eax
+	pushl	%eax
+o32	pushf
+	xorl	%eax,%eax
+cs	movw	temp_cs, %ax
+	pushl	%eax
+cs	movw	temp_ip, %ax
+	pushl	%eax
+	pushl	$0
+	movw	%gs, %ax
+	pushl	%eax
+	movw	%fs, %ax
+	pushl	%eax
+	movw	%es, %ax
+	pushl	%eax
+	movw	%ds, %ax
+	pushl	%eax
+	movl	saved_eax, %eax
+	pushl	%eax
+	pushl	%ebp
+	pushl	%edi
+	pushl	%esi
+	pushl	%edx
+	pushl	%ecx
+	pushl	%ebx
+
+o32 cs	lidt	saved_idt
+o32 cs	lgdt	saved_gdt			/* Set GDTR */
+
+	movl	%cr0, %eax			/* Go back into protected mode */
+	orl	$1,%eax	/* reset PE to 1 */
+	movl	%eax, %cr0
+	jmp	next_line			/* flush prefetch queue */
+next_line:
+	movw	$return_ptr, %ax
+	movw	%ax,%bp
+o32 cs	ljmp	*(%bp)
+
+.code32
+protected_mode:
+	movl	$0x18,%eax			/* reload GDT[3] */
+	movw	%ax,%fs				/* reset FS */
+	movw	%ax,%ds				/* reset DS */
+	movw	%ax,%gs				/* reset GS */
+	movw	%ax,%es				/* reset ES */
+	movw	%ax,%ss				/* reset SS */
+	movl	saved_protected_mode_esp, %eax
+	movl	%eax, %esp
+	popf
+	popa
+	ret
+
+temp_eax:
+	.long	0
+
+saved_ss:
+	.word	0
+saved_esp:
+	.long	0
+saved_eax:
+	.long	0
+
+realmode_idt_ptr:
+	.word	0x400
+	.word	0x0, 0x0
+
+saved_gdt:
+	.word	0, 0, 0, 0
+saved_idt:
+	.word	0, 0, 0, 0
+
+saved_protected_mode_esp:
+	.long	0
+
+return_ptr:
+	.long	protected_mode
+	.word	0x10
diff --git a/arch/x86/lib/timer.c b/arch/x86/lib/timer.c
new file mode 100644
index 0000000..8fc68cd
--- /dev/null
+++ b/arch/x86/lib/timer.c
@@ -0,0 +1,110 @@
+/*
+ * (C) Copyright 2008,2009
+ * Graeme Russ, <graeme.russ@gmail.com>
+ *
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <malloc.h>
+#include <asm/io.h>
+#include <asm/i8254.h>
+#include <asm/ibmpc.h>
+
+struct timer_isr_function {
+	struct timer_isr_function *next;
+	timer_fnc_t *isr_func;
+};
+
+static struct timer_isr_function *first_timer_isr = NULL;
+static volatile unsigned long system_ticks = 0;
+
+/*
+ * register_timer_isr() allows multiple architecture and board specific
+ * functions to be called every millisecond. Keep the execution time of
+ * each function as low as possible
+ */
+int register_timer_isr (timer_fnc_t *isr_func)
+{
+	struct timer_isr_function *new_func;
+	struct timer_isr_function *temp;
+	int flag;
+
+	new_func = malloc(sizeof(struct timer_isr_function));
+
+	if (new_func == NULL)
+		return 1;
+
+	new_func->isr_func = isr_func;
+	new_func->next = NULL;
+
+	/*
+	 *  Don't allow timer interrupts while the
+	 *  linked list is being modified
+	 */
+	flag = disable_interrupts ();
+
+	if (first_timer_isr == NULL) {
+		first_timer_isr = new_func;
+	} else {
+		temp = first_timer_isr;
+		while (temp->next != NULL)
+			temp = temp->next;
+		temp->next = new_func;
+	}
+
+	if (flag)
+		enable_interrupts ();
+
+	return 0;
+}
+
+/*
+ * timer_isr() MUST be the registered interrupt handler for
+ */
+void timer_isr(void *unused)
+{
+	struct timer_isr_function *temp = first_timer_isr;
+
+	system_ticks++;
+
+	/* Execute each registered function */
+	while (temp != NULL) {
+		temp->isr_func ();
+		temp = temp->next;
+	}
+}
+
+void reset_timer (void)
+{
+	system_ticks = 0;
+}
+
+ulong get_timer (ulong base)
+{
+	return (system_ticks - base);
+}
+
+void set_timer (ulong t)
+{
+	system_ticks = t;
+}
diff --git a/arch/x86/lib/video.c b/arch/x86/lib/video.c
new file mode 100644
index 0000000..b29075c
--- /dev/null
+++ b/arch/x86/lib/video.c
@@ -0,0 +1,229 @@
+/*
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <pci.h>
+#include <stdio_dev.h>
+#include <i8042.h>
+#include <asm/ptrace.h>
+#include <asm/realmode.h>
+#include <asm/io.h>
+#include <asm/pci.h>
+
+/* basic textmode I/O from linux kernel */
+static char *vidmem = (char *)0xb8000;
+static int vidport;
+static int lines, cols;
+static int orig_x, orig_y;
+
+static void beep(int dur)
+{
+	int i;
+
+	outb_p(3, 0x61);
+	for (i = 0; i < 10*dur; i++)
+		udelay(1000);
+
+	outb_p(0, 0x61);
+}
+
+static void scroll(void)
+{
+	int i;
+
+	memcpy(vidmem, vidmem + cols * 2, (lines - 1) * cols * 2);
+	for (i = (lines - 1) * cols * 2; i < lines * cols * 2; i += 2)
+		vidmem[i] = ' ';
+}
+
+static void __video_putc(const char c, int *x, int *y)
+{
+	if (c == '\n') {
+		(*x) = 0;
+		if (++(*y) >= lines) {
+			scroll();
+			(*y)--;
+		}
+	} else if (c == '\b') {
+		if ((*x) != 0) {
+			--(*x);
+			vidmem[((*x) + cols * (*y)) * 2] = ' ';
+		}
+	} else if (c == '\r') {
+		(*x) = 0;
+
+	} else if (c == '\a') {
+		beep(3);
+
+	} else if (c == '\t') {
+		__video_putc(' ', x, y);
+		__video_putc(' ', x, y);
+		__video_putc(' ', x, y);
+		__video_putc(' ', x, y);
+		__video_putc(' ', x, y);
+		__video_putc(' ', x, y);
+		__video_putc(' ', x, y);
+		__video_putc(' ', x, y);
+	} else if (c == '\v') {
+		switch ((*x) % 8) {
+		case 0:
+			__video_putc(' ', x, y);
+		case 7:
+			__video_putc(' ', x, y);
+		case 6:
+			__video_putc(' ', x, y);
+		case 5:
+			__video_putc(' ', x, y);
+		case 4:
+			__video_putc(' ', x, y);
+		case 3:
+			__video_putc(' ', x, y);
+		case 2:
+			__video_putc(' ', x, y);
+		case 1:
+			__video_putc(' ', x, y);
+		}
+	} else if (c == '\f') {
+		int i;
+		for (i = 0; i < lines * cols * 2; i += 2)
+			vidmem[i] = 0;
+		(*x) = 0;
+		(*y) = 0;
+	} else {
+		vidmem[((*x) + cols * (*y)) * 2] = c;
+		if (++(*x) >= cols) {
+			(*x) = 0;
+			if (++(*y) >= lines) {
+				scroll();
+				(*y)--;
+			}
+		}
+	}
+}
+
+static void video_putc(const char c)
+{
+	int x,y,pos;
+
+	x = orig_x;
+	y = orig_y;
+
+	__video_putc(c, &x, &y);
+
+	orig_x = x;
+	orig_y = y;
+
+	pos = (x + cols * y) * 2;	/* Update cursor position */
+	outb_p(14, vidport);
+	outb_p(0xff & (pos >> 9), vidport+1);
+	outb_p(15, vidport);
+	outb_p(0xff & (pos >> 1), vidport+1);
+}
+
+static void video_puts(const char *s)
+{
+	int x,y,pos;
+	char c;
+
+	x = orig_x;
+	y = orig_y;
+
+	while ((c = *s++) != '\0')
+		__video_putc(c, &x, &y);
+
+	orig_x = x;
+	orig_y = y;
+
+	pos = (x + cols * y) * 2;	/* Update cursor position */
+	outb_p(14, vidport);
+	outb_p(0xff & (pos >> 9), vidport+1);
+	outb_p(15, vidport);
+	outb_p(0xff & (pos >> 1), vidport+1);
+}
+
+int video_init(void)
+{
+	u16 pos;
+
+	static struct stdio_dev vga_dev;
+	static struct stdio_dev kbd_dev;
+
+	vidmem = (char *) 0xb8000;
+	vidport = 0x3d4;
+
+	lines = 25;
+	cols = 80;
+
+	outb_p(14, vidport);
+	pos = inb_p(vidport+1);
+	pos <<= 8;
+	outb_p(15, vidport);
+	pos |= inb_p(vidport+1);
+
+	orig_x = pos%cols;
+	orig_y = pos/cols;
+
+#if 0
+	printf("pos %x %d %d\n", pos, orig_x, orig_y);
+#endif
+	if (orig_y > lines)
+		orig_x = orig_y =0;
+
+	memset(&vga_dev, 0, sizeof(vga_dev));
+	strcpy(vga_dev.name, "vga");
+	vga_dev.ext   = 0;
+	vga_dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_SYSTEM;
+	vga_dev.putc  = video_putc;        /* 'putc' function */
+	vga_dev.puts  = video_puts;        /* 'puts' function */
+	vga_dev.tstc  = NULL;              /* 'tstc' function */
+	vga_dev.getc  = NULL;              /* 'getc' function */
+
+	if (stdio_register(&vga_dev) == 0)
+		return 1;
+
+	if (i8042_kbd_init())
+		return 1;
+
+	memset(&kbd_dev, 0, sizeof(kbd_dev));
+	strcpy(kbd_dev.name, "kbd");
+	kbd_dev.ext   = 0;
+	kbd_dev.flags = DEV_FLAGS_INPUT | DEV_FLAGS_SYSTEM;
+	kbd_dev.putc  = NULL;        /* 'putc' function */
+	kbd_dev.puts  = NULL;        /* 'puts' function */
+	kbd_dev.tstc  = i8042_tstc;  /* 'tstc' function */
+	kbd_dev.getc  = i8042_getc;  /* 'getc' function */
+
+	if (stdio_register(&kbd_dev) == 0)
+		return 1;
+
+	return 0;
+}
+
+
+int drv_video_init(void)
+{
+	if (video_bios_init())
+		return 1;
+
+	return video_init();
+}
diff --git a/arch/x86/lib/video_bios.c b/arch/x86/lib/video_bios.c
new file mode 100644
index 0000000..6bc4335
--- /dev/null
+++ b/arch/x86/lib/video_bios.c
@@ -0,0 +1,222 @@
+/*
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <pci.h>
+#include <malloc.h>
+#include <asm/ptrace.h>
+#include <asm/realmode.h>
+#include <asm/io.h>
+#include <asm/pci.h>
+
+#undef PCI_BIOS_DEBUG
+#undef VGA_BIOS_DEBUG
+
+#ifdef	VGA_BIOS_DEBUG
+#define	PRINTF(fmt,args...)	printf (fmt ,##args)
+#else
+#define PRINTF(fmt,args...)
+#endif
+
+#ifdef CONFIG_PCI
+
+#ifdef PCI_BIOS_DEBUG
+#define RELOC_16(seg, off) *(u32*)(seg << 4 | (u32)&off)
+extern u32 num_pci_bios_present;
+extern u32 num_pci_bios_find_device;
+extern u32 num_pci_bios_find_class;
+extern u32 num_pci_bios_generate_special_cycle;
+extern u32 num_pci_bios_read_cfg_byte;
+extern u32 num_pci_bios_read_cfg_word;
+extern u32 num_pci_bios_read_cfg_dword;
+extern u32 num_pci_bios_write_cfg_byte;
+extern u32 num_pci_bios_write_cfg_word;
+extern u32 num_pci_bios_write_cfg_dword;
+extern u32 num_pci_bios_get_irq_routing;
+extern u32 num_pci_bios_set_irq;
+extern u32 num_pci_bios_unknown_function;
+
+void print_bios_bios_stat(void)
+{
+	printf("16 bit functions:\n");
+	printf("pci_bios_present:                %d\n", RELOC_16(0xf000, num_pci_bios_present));
+	printf("pci_bios_find_device:            %d\n", RELOC_16(0xf000, num_pci_bios_find_device));
+	printf("pci_bios_find_class:             %d\n", RELOC_16(0xf000, num_pci_bios_find_class));
+	printf("pci_bios_generate_special_cycle: %d\n", RELOC_16(0xf000, num_pci_bios_generate_special_cycle));
+	printf("pci_bios_read_cfg_byte:          %d\n", RELOC_16(0xf000, num_pci_bios_read_cfg_byte));
+	printf("pci_bios_read_cfg_word:          %d\n", RELOC_16(0xf000, num_pci_bios_read_cfg_word));
+	printf("pci_bios_read_cfg_dword:         %d\n", RELOC_16(0xf000, num_pci_bios_read_cfg_dword));
+	printf("pci_bios_write_cfg_byte:         %d\n", RELOC_16(0xf000, num_pci_bios_write_cfg_byte));
+	printf("pci_bios_write_cfg_word:         %d\n", RELOC_16(0xf000, num_pci_bios_write_cfg_word));
+	printf("pci_bios_write_cfg_dword:        %d\n", RELOC_16(0xf000, num_pci_bios_write_cfg_dword));
+	printf("pci_bios_get_irq_routing:        %d\n", RELOC_16(0xf000, num_pci_bios_get_irq_routing));
+	printf("pci_bios_set_irq:                %d\n", RELOC_16(0xf000, num_pci_bios_set_irq));
+	printf("pci_bios_unknown_function:       %d\n", RELOC_16(0xf000, num_pci_bios_unknown_function));
+
+}
+#endif
+
+#ifdef CONFIG_VIDEO
+
+#define PCI_CLASS_VIDEO             3
+#define PCI_CLASS_VIDEO_STD         0
+#define PCI_CLASS_VIDEO_PROG_IF_VGA 0
+
+static struct pci_device_id supported[] = {
+	{PCI_VIDEO_VENDOR_ID, PCI_VIDEO_DEVICE_ID},
+	{}
+};
+
+static u32 probe_pci_video(void)
+{
+	pci_dev_t devbusfn;
+
+	if ((devbusfn = pci_find_devices(supported, 0) != -1)) {
+		u32 old;
+		u32 addr;
+
+		/* PCI video device detected */
+		printf("Found PCI VGA device at %02x.%02x.%x\n",
+		       PCI_BUS(devbusfn), PCI_DEV(devbusfn), PCI_FUNC(devbusfn));
+
+		/* Enable I/O decoding as well, PCI viudeo boards
+		 * support I/O accesses, but they provide no
+		 * bar register for this since the ports are fixed.
+		 */
+		pci_write_config_word(devbusfn, PCI_COMMAND, PCI_COMMAND_MEMORY | PCI_COMMAND_IO | PCI_COMMAND_MASTER);
+
+		/* Test the ROM decoder, do the device support a rom? */
+		pci_read_config_dword(devbusfn, PCI_ROM_ADDRESS, &old);
+		pci_write_config_dword(devbusfn, PCI_ROM_ADDRESS, (u32)PCI_ROM_ADDRESS_MASK);
+		pci_read_config_dword(devbusfn, PCI_ROM_ADDRESS, &addr);
+		pci_write_config_dword(devbusfn, PCI_ROM_ADDRESS, old);
+
+		if (!addr) {
+			printf("PCI VGA have no ROM?\n");
+			return 0;
+		}
+
+		/* device have a rom */
+		if (pci_shadow_rom(devbusfn, (void*)0xc0000)) {
+			printf("Shadowing of PCI VGA BIOS failed\n");
+			return 0;
+		}
+
+		/* Now enable lagacy VGA port access */
+		if (pci_enable_legacy_video_ports(pci_bus_to_hose(PCI_BUS(devbusfn)))) {
+			printf("PCI VGA enable failed\n");
+			return 0;
+		}
+
+
+		/* return the pci device info, that we'll need later */
+		return PCI_BUS(devbusfn) << 8 |
+			PCI_DEV(devbusfn) << 3 | (PCI_FUNC(devbusfn)&7);
+	}
+
+	return 0;
+}
+
+static int probe_isa_video(void)
+{
+	u32 ptr;
+	char *buf;
+
+	if (0 == (ptr = isa_map_rom(0xc0000, 0x8000))) {
+		return -1;
+	}
+	if (NULL == (buf=malloc(0x8000))) {
+		isa_unmap_rom(ptr);
+		return -1;
+	}
+	if (readw(ptr) != 0xaa55) {
+		free(buf);
+		isa_unmap_rom(ptr);
+		return -1;
+	}
+
+	/* shadow the rom */
+	memcpy(buf, (void*)ptr, 0x8000);
+	isa_unmap_rom(ptr);
+	memcpy((void*)0xc0000, buf, 0x8000);
+
+	free(buf);
+
+	return 0;
+}
+
+int video_bios_init(void)
+{
+	struct pt_regs regs;
+
+	/* clear the video bios area in case we warmbooted */
+	memset((void*)0xc0000, 0, 0x8000);
+	memset(&regs, 0, sizeof(struct pt_regs));
+
+	if (probe_isa_video()) {
+		/* No ISA board found, try the PCI bus */
+		regs.eax = probe_pci_video();
+	}
+
+	/* Did we succeed in mapping any video bios */
+	if (readw(0xc0000) == 0xaa55) {
+	        int size;
+		int i;
+		u8 sum;
+
+		PRINTF("Found video bios signature\n");
+		size = 512*readb(0xc0002);
+		PRINTF("size %d\n", size);
+		sum=0;
+		for (i=0;i<size;i++) {
+			sum += readb(0xc0000 + i);
+		}
+		PRINTF("Checksum is %sOK\n",sum?"NOT ":"");
+		if (sum) {
+			return 1;
+		}
+
+		/* some video bioses (ATI Mach64) seem to think that
+		 * the original int 10 handler is always at
+		 * 0xf000:0xf065 , place an iret instruction there
+		 */
+		writeb(0xcf, 0xff065);
+
+		regs.esp = 0x8000;
+		regs.xss = 0x2000;
+		enter_realmode(0xc000, 3, &regs, &regs);
+		PRINTF("INT 0x10 vector after:  %04x:%04x\n",
+		       readw(0x42), readw(0x40));
+		PRINTF("BIOS returned %scarry\n", regs.eflags & 1?"":"NOT ");
+#ifdef PCI_BIOS_DEBUG
+		print_bios_bios_stat();
+#endif
+		return (regs.eflags & 1);
+
+	}
+
+	return 1;
+
+}
+#endif
+#endif
diff --git a/arch/x86/lib/zimage.c b/arch/x86/lib/zimage.c
new file mode 100644
index 0000000..cc4b40e
--- /dev/null
+++ b/arch/x86/lib/zimage.c
@@ -0,0 +1,296 @@
+/*
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * Linux x86 zImage and bzImage loading
+ *
+ * based on the procdure described in
+ * linux/Documentation/i386/boot.txt
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/ptrace.h>
+#include <asm/zimage.h>
+#include <asm/realmode.h>
+#include <asm/byteorder.h>
+#include <asm/bootparam.h>
+#include <asm/ic/sc520.h>
+
+/*
+ * Memory lay-out:
+ *
+ * relative to setup_base (which is 0x90000 currently)
+ *
+ *	0x0000-0x7FFF	Real mode kernel
+ *	0x8000-0x8FFF	Stack and heap
+ *	0x9000-0x90FF	Kernel command line
+ */
+#define DEFAULT_SETUP_BASE  0x90000
+#define COMMAND_LINE_OFFSET 0x9000
+#define HEAP_END_OFFSET     0x8e00
+
+#define COMMAND_LINE_SIZE   2048
+
+static void build_command_line(char *command_line, int auto_boot)
+{
+	char *env_command_line;
+
+	command_line[0] = '\0';
+
+	env_command_line =  getenv("bootargs");
+
+	/* set console= argument if we use a serial console */
+	if (NULL == strstr(env_command_line, "console=")) {
+		if (0==strcmp(getenv("stdout"), "serial")) {
+
+			/* We seem to use serial console */
+			sprintf(command_line, "console=ttyS0,%s ",
+				 getenv("baudrate"));
+		}
+	}
+
+	if (auto_boot) {
+		strcat(command_line, "auto ");
+	}
+
+	if (NULL != env_command_line) {
+		strcat(command_line, env_command_line);
+	}
+
+
+	printf("Kernel command line: \"%s\"\n", command_line);
+}
+
+void *load_zimage(char *image, unsigned long kernel_size,
+		  unsigned long initrd_addr, unsigned long initrd_size,
+		  int auto_boot)
+{
+	void *setup_base;
+	int setup_size;
+	int bootproto;
+	int big_image;
+	void *load_address;
+
+	struct setup_header *hdr = (struct setup_header *)(image + SETUP_SECTS_OFF);
+
+	setup_base = (void*)DEFAULT_SETUP_BASE;	/* base address for real-mode segment */
+
+	if (KERNEL_MAGIC != hdr->boot_flag) {
+		printf("Error: Invalid Boot Flag (found 0x%04x, expected 0x%04x)\n",
+				hdr->boot_flag, KERNEL_MAGIC);
+		return 0;
+	} else {
+		printf("Valid Boot Flag\n");
+	}
+
+	/* determine boot protocol version */
+	if (KERNEL_V2_MAGIC == hdr->header) {
+		printf("Magic signature found\n");
+
+		bootproto = hdr->version;
+	} else {
+		/* Very old kernel */
+		printf("Magic signature not found\n");
+		bootproto = 0x0100;
+	}
+
+	/* determine size of setup */
+	if (0 == hdr->setup_sects) {
+		printf("Setup Sectors = 0 (defaulting to 4)\n");
+		setup_size = 5 * 512;
+	} else {
+		setup_size = (hdr->setup_sects + 1) * 512;
+	}
+
+	printf("Setup Size = 0x%8.8lx\n", (ulong)setup_size);
+
+	if (setup_size > SETUP_MAX_SIZE) {
+		printf("Error: Setup is too large (%d bytes)\n", setup_size);
+	}
+
+	/* Determine image type */
+	big_image = (bootproto >= 0x0200) && (hdr->loadflags & BIG_KERNEL_FLAG);
+
+	/* Determine load address */
+	load_address = (void*)(big_image ? BZIMAGE_LOAD_ADDR : ZIMAGE_LOAD_ADDR);
+
+	/* load setup */
+	printf("Moving Real-Mode Code to 0x%8.8lx (%d bytes)\n", (ulong)setup_base, setup_size);
+	memmove(setup_base, image, setup_size);
+
+	printf("Using boot protocol version %x.%02x\n",
+	       (bootproto & 0xff00) >> 8, bootproto & 0xff);
+
+	if (bootproto == 0x0100) {
+
+		*(u16*)(setup_base + CMD_LINE_MAGIC_OFF) = COMMAND_LINE_MAGIC;
+		*(u16*)(setup_base + CMD_LINE_OFFSET_OFF) = COMMAND_LINE_OFFSET;
+
+		/* A very old kernel MUST have its real-mode code
+		 * loaded at 0x90000 */
+
+		if ((u32)setup_base != 0x90000) {
+			/* Copy the real-mode kernel */
+			memmove((void*)0x90000, setup_base, setup_size);
+			/* Copy the command line */
+			memmove((void*)0x99000, setup_base+COMMAND_LINE_OFFSET,
+			       COMMAND_LINE_SIZE);
+
+			setup_base = (void*)0x90000;		 /* Relocated */
+		}
+
+		/* It is recommended to clear memory up to the 32K mark */
+		memset((void*)0x90000 + setup_size, 0, SETUP_MAX_SIZE-setup_size);
+	}
+
+	/* We are now setting up the real-mode version of the header */
+	hdr = (struct setup_header *)(setup_base + SETUP_SECTS_OFF);
+
+	if (bootproto >= 0x0200) {
+		hdr->type_of_loader = 8;
+
+		if (hdr->setup_sects >= 15)
+			printf("Linux kernel version %s\n", (char *)
+					(setup_base + (hdr->kernel_version + 0x200)));
+		else
+			printf("Setup Sectors < 15 - Cannot print kernel version.\n");
+
+		if (initrd_addr) {
+			printf("Initial RAM disk at linear address 0x%08lx, size %ld bytes\n",
+			       initrd_addr, initrd_size);
+
+			hdr->ramdisk_image = initrd_addr;
+			hdr->ramdisk_size = initrd_size;
+		}
+	}
+
+	if (bootproto >= 0x0201) {
+		hdr->heap_end_ptr = HEAP_END_OFFSET;
+		hdr->loadflags |= HEAP_FLAG;
+	}
+
+	if (bootproto >= 0x0202) {
+		hdr->cmd_line_ptr = (u32)setup_base + COMMAND_LINE_OFFSET;
+	} else if (bootproto >= 0x0200) {
+
+		*(u16*)(setup_base + CMD_LINE_MAGIC_OFF) = COMMAND_LINE_MAGIC;
+		*(u16*)(setup_base + CMD_LINE_OFFSET_OFF) = COMMAND_LINE_OFFSET;
+
+		hdr->setup_move_size = 0x9100;
+	}
+
+	if (bootproto >= 0x0204)
+		kernel_size = hdr->syssize * 16;
+	else
+		kernel_size -= setup_size;
+
+
+	if (big_image) {
+		if ((kernel_size) > BZIMAGE_MAX_SIZE) {
+			printf("Error: bzImage kernel too big! (size: %ld, max: %d)\n",
+			       kernel_size, BZIMAGE_MAX_SIZE);
+			return 0;
+		}
+
+	} else if ((kernel_size) > ZIMAGE_MAX_SIZE) {
+		printf("Error: zImage kernel too big! (size: %ld, max: %d)\n",
+		       kernel_size, ZIMAGE_MAX_SIZE);
+		return 0;
+	}
+
+	/* build command line at COMMAND_LINE_OFFSET */
+	build_command_line(setup_base + COMMAND_LINE_OFFSET, auto_boot);
+
+	printf("Loading %czImage at address 0x%08x (%ld bytes)\n", big_image ? 'b' : ' ',
+	       (u32)load_address, kernel_size);
+
+
+	memmove(load_address, image + setup_size, kernel_size);
+
+	/* ready for booting */
+	return setup_base;
+}
+
+void boot_zimage(void *setup_base)
+{
+	struct pt_regs regs;
+
+	memset(&regs, 0, sizeof(struct pt_regs));
+	regs.xds = (u32)setup_base >> 4;
+	regs.xes = regs.xds;
+	regs.xss = regs.xds;
+	regs.esp = 0x9000;
+	regs.eflags = 0;
+	enter_realmode(((u32)setup_base+SETUP_START_OFFSET)>>4, 0, &regs, &regs);
+}
+
+int do_zboot (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	void *base_ptr;
+	void *bzImage_addr = NULL;
+	char *s;
+	ulong bzImage_size = 0;
+
+	disable_interrupts();
+
+	/* Setup board for maximum PC/AT Compatibility */
+	setup_pcat_compatibility();
+
+	if (argc >= 2)
+		/* argv[1] holds the address of the bzImage */
+		s = argv[1];
+	else
+		s = getenv("fileaddr");
+
+	if (s)
+		bzImage_addr = (void *)simple_strtoul(s, NULL, 16);
+
+	if (argc >= 3)
+		/* argv[2] holds the size of the bzImage */
+		bzImage_size = simple_strtoul(argv[2], NULL, 16);
+
+	/* Lets look for*/
+	base_ptr = load_zimage (bzImage_addr, bzImage_size, 0, 0, 0);
+
+	if (NULL == base_ptr) {
+		printf ("## Kernel loading failed ...\n");
+	} else {
+		printf ("## Transferring control to Linux (at address %08x) ...\n",
+			(u32)base_ptr);
+
+		/* we assume that the kernel is in place */
+		printf("\nStarting kernel ...\n\n");
+
+		boot_zimage(base_ptr);
+		/* does not return */
+	}
+
+	return -1;
+}
+
+U_BOOT_CMD(
+	zboot, 2, 0,	do_zboot,
+	"Boot bzImage",
+	""
+);