Merge branch 'master' of git://git.denx.de/u-boot-x86

* 'master' of git://git.denx.de/u-boot-x86:
  x86: Convert board_init_f_r to a processing loop
  x86: Split init functions out of board.c
  x86: Move relocation code out of board.c
  x86: Move setup_pcat_compatibility() out of board.c
  x86: Move do_go_exec() out of board.c
  CHECKPATCH: arch/x86/lib/*
  x86: Tweak IDT and GDT for alignment and readability
  x86: Allow cache before copy to RAM
  x86: Create weak init_cache() and default enable_caches() functions
  x86: Set GD_FLG_RELOC after entering in-RAM copy of U-Boot
  x86: Use fs for global data
  x86: Rework relocation calculations
  x86: Simplify Flash-to-RAM code execution transition
  x86: Rework Global Descriptor Table loading
  x86: Remove GDR related magic numbers
  x86: Speed up copy-to-RAM and clear BSS operations
  x86: Import glibc memcpy implementation

7 files changed, 159 insertions, 12 deletions

diff --git a/arch/x86/include/asm/global_data.h b/arch/x86/include/asm/global_data.h
index 05a2139..908a02c 100644
--- a/arch/x86/include/asm/global_data.h
+++ b/arch/x86/include/asm/global_data.h
@@ -36,6 +36,8 @@
 #ifndef __ASSEMBLY__
 
 typedef	struct global_data {
+	/* NOTE: gd_addr MUST be first member of struct global_data! */
+	unsigned long	gd_addr;	/* Location of Global Data */
 	bd_t		*bd;
 	unsigned long	flags;
 	unsigned long	baudrate;
@@ -51,13 +53,24 @@ typedef	struct global_data {
 	unsigned long	bus_clk;
 	unsigned long	relocaddr;	/* Start address of U-Boot in RAM */
 	unsigned long	start_addr_sp;	/* start_addr_stackpointer */
+	unsigned long	gdt_addr;	/* Location of GDT */
+	unsigned long	new_gd_addr;	/* New location of Global Data */
 	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;
+static inline gd_t *get_fs_gd_ptr(void)
+{
+	gd_t *gd_ptr;
+
+	asm volatile("fs movl 0, %0\n" : "=r" (gd_ptr));
+
+	return gd_ptr;
+}
+
+#define gd	get_fs_gd_ptr()
 
 #endif
 
@@ -73,12 +86,6 @@ extern gd_t *gd;
 #define GD_FLG_DISABLE_CONSOLE	0x00040	/* Disable console (in & out)		*/
 #define GD_FLG_ENV_READY	0x00080	/* Environment imported into hash table	*/
 
-#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/init_helpers.h b/arch/x86/include/asm/init_helpers.h
new file mode 100644
index 0000000..192f18e
--- /dev/null
+++ b/arch/x86/include/asm/init_helpers.h
@@ -0,0 +1,44 @@
+/*
+ * (C) Copyright 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
+ */
+
+#ifndef _INIT_HELPERS_H_
+#define _INIT_HELPERS_H_
+
+int display_banner(void);
+int display_dram_config(void);
+int init_baudrate_f(void);
+int calculate_relocation_address(void);
+
+int copy_gd_to_ram_f_r(void);
+int init_cache_f_r(void);
+
+int set_reloc_flag_r(void);
+int mem_malloc_init_r(void);
+int init_bd_struct_r(void);
+int flash_init_r(void);
+int init_ip_address_r(void);
+int status_led_set_r(void);
+int set_bootfile_r(void);
+int set_load_addr_r(void);
+
+#endif	/* !_INIT_HELPERS_H_ */
diff --git a/arch/x86/include/asm/init_wrappers.h b/arch/x86/include/asm/init_wrappers.h
new file mode 100644
index 0000000..899ffb1
--- /dev/null
+++ b/arch/x86/include/asm/init_wrappers.h
@@ -0,0 +1,42 @@
+/*
+ * (C) Copyright 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
+ */
+
+#ifndef _INIT_WRAPPERS_H_
+#define _INIT_WRAPPERS_H_
+
+int serial_initialize_r(void);
+int env_relocate_r(void);
+int pci_init_r(void);
+int jumptable_init_r(void);
+int pcmcia_init_r(void);
+int kgdb_init_r(void);
+int enable_interrupts_r(void);
+int eth_initialize_r(void);
+int reset_phy_r(void);
+int ide_init_r(void);
+int scsi_init_r(void);
+int doc_init_r(void);
+int bb_miiphy_init_r(void);
+int post_run_r(void);
+
+#endif	/* !_INIT_WRAPPERS_H_ */
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 1e5dccd..6eb5180 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -24,9 +24,25 @@
 #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)
+#define X86_GDT_ENTRY_SIZE	8
+
+#ifndef __ASSEMBLY__
+
+enum {
+	X86_GDT_ENTRY_NULL = 0,
+	X86_GDT_ENTRY_UNUSED,
+	X86_GDT_ENTRY_32BIT_CS,
+	X86_GDT_ENTRY_32BIT_DS,
+	X86_GDT_ENTRY_32BIT_FS,
+	X86_GDT_ENTRY_16BIT_CS,
+	X86_GDT_ENTRY_16BIT_DS,
+	X86_GDT_NUM_ENTRIES
+};
+#else
+/* NOTE: If the above enum is modified, this define must be checked */
+#define X86_GDT_ENTRY_32BIT_DS	3
+#endif
+
+#define X86_GDT_SIZE		(X86_GDT_NUM_ENTRIES * X86_GDT_ENTRY_SIZE)
 
 #endif
diff --git a/arch/x86/include/asm/relocate.h b/arch/x86/include/asm/relocate.h
new file mode 100644
index 0000000..33129ef
--- /dev/null
+++ b/arch/x86/include/asm/relocate.h
@@ -0,0 +1,33 @@
+/*
+ * (C) Copyright 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
+ */
+
+#ifndef _RELOCATE_H_
+#define _RELOCATE_H_
+
+#include <common.h>
+
+int copy_uboot_to_ram(void);
+int clear_bss(void);
+int do_elf_reloc_fixups(void);
+
+#endif	/* !_RELOCATE_H_ */
diff --git a/arch/x86/include/asm/string.h b/arch/x86/include/asm/string.h
index 3aa6c11..0ad612f 100644
--- a/arch/x86/include/asm/string.h
+++ b/arch/x86/include/asm/string.h
@@ -14,7 +14,7 @@ extern char * strrchr(const char * s, int c);
 #undef __HAVE_ARCH_STRCHR
 extern char * strchr(const char * s, int c);
 
-#undef __HAVE_ARCH_MEMCPY
+#define __HAVE_ARCH_MEMCPY
 extern void * memcpy(void *, const void *, __kernel_size_t);
 
 #undef __HAVE_ARCH_MEMMOVE
diff --git a/arch/x86/include/asm/u-boot-x86.h b/arch/x86/include/asm/u-boot-x86.h
index 755f88a..878a1ee 100644
--- a/arch/x86/include/asm/u-boot-x86.h
+++ b/arch/x86/include/asm/u-boot-x86.h
@@ -37,6 +37,9 @@ int x86_cpu_init_r(void);
 int cpu_init_r(void);
 int x86_cpu_init_f(void);
 int cpu_init_f(void);
+void init_gd(gd_t *id, u64 *gdt_addr);
+void setup_gdt(gd_t *id, u64 *gdt_addr);
+int init_cache(void);
 
 /* cpu/.../timer.c */
 void timer_isr(void *);
@@ -61,5 +64,7 @@ u32 isa_map_rom(u32 bus_addr, int size);
 int video_bios_init(void);
 int video_init(void);
 
+void	board_init_f_r_trampoline(ulong) __attribute__ ((noreturn));
+void	board_init_f_r(void) __attribute__ ((noreturn));
 
 #endif	/* _U_BOOT_I386_H_ */