summaryrefslogtreecommitdiff
path: root/arch/ppc/cpu/mpc86xx
diff options
context:
space:
mode:
Diffstat (limited to 'arch/ppc/cpu/mpc86xx')
-rw-r--r--arch/ppc/cpu/mpc86xx/Makefile63
-rw-r--r--arch/ppc/cpu/mpc86xx/cache.S378
-rw-r--r--arch/ppc/cpu/mpc86xx/config.mk27
-rw-r--r--arch/ppc/cpu/mpc86xx/cpu.c233
-rw-r--r--arch/ppc/cpu/mpc86xx/cpu_init.c190
-rw-r--r--arch/ppc/cpu/mpc86xx/ddr-8641.c85
-rw-r--r--arch/ppc/cpu/mpc86xx/fdt.c60
-rw-r--r--arch/ppc/cpu/mpc86xx/interrupts.c115
-rw-r--r--arch/ppc/cpu/mpc86xx/mp.c125
-rw-r--r--arch/ppc/cpu/mpc86xx/release.S167
-rw-r--r--arch/ppc/cpu/mpc86xx/speed.c163
-rw-r--r--arch/ppc/cpu/mpc86xx/start.S957
-rw-r--r--arch/ppc/cpu/mpc86xx/traps.c233
13 files changed, 2796 insertions, 0 deletions
diff --git a/arch/ppc/cpu/mpc86xx/Makefile b/arch/ppc/cpu/mpc86xx/Makefile
new file mode 100644
index 0000000..daca79a
--- /dev/null
+++ b/arch/ppc/cpu/mpc86xx/Makefile
@@ -0,0 +1,63 @@
+#
+# Copyright 2007 Freescale Semiconductor, Inc.
+# (C) Copyright 2002,2003 Motorola Inc.
+# Xianghua Xiao,X.Xiao@motorola.com
+#
+# (C) Copyright 2004 Freescale Semiconductor. (MC86xx Port)
+# Jeff Brown
+# 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).a
+
+START = start.o
+
+SOBJS-y += cache.o
+SOBJS-$(CONFIG_MP) += release.o
+
+COBJS-y += cpu.o
+COBJS-y += cpu_init.o
+# 8610 & 8641 are identical w/regards to DDR
+COBJS-$(CONFIG_MPC8610) += ddr-8641.o
+COBJS-$(CONFIG_MPC8641) += ddr-8641.o
+COBJS-$(CONFIG_OF_LIBFDT) += fdt.o
+COBJS-y += interrupts.o
+COBJS-$(CONFIG_MP) += mp.o
+COBJS-y += speed.o
+COBJS-y += traps.o
+
+SRCS := $(START:.o=.S) $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
+OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))
+START := $(addprefix $(obj),$(START))
+
+all: $(obj).depend $(START) $(LIB)
+
+$(LIB): $(OBJS)
+ $(AR) $(ARFLAGS) $@ $(ASOBJS) $(OBJS)
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/arch/ppc/cpu/mpc86xx/cache.S b/arch/ppc/cpu/mpc86xx/cache.S
new file mode 100644
index 0000000..0bb058b
--- /dev/null
+++ b/arch/ppc/cpu/mpc86xx/cache.S
@@ -0,0 +1,378 @@
+#include <config.h>
+#include <mpc86xx.h>
+#include <version.h>
+
+#include <ppc_asm.tmpl>
+#include <ppc_defs.h>
+
+#include <asm/cache.h>
+#include <asm/mmu.h>
+
+#ifndef CACHE_LINE_SIZE
+# define CACHE_LINE_SIZE L1_CACHE_BYTES
+#endif
+
+#if CACHE_LINE_SIZE == 128
+#define LG_CACHE_LINE_SIZE 7
+#elif CACHE_LINE_SIZE == 32
+#define LG_CACHE_LINE_SIZE 5
+#elif CACHE_LINE_SIZE == 16
+#define LG_CACHE_LINE_SIZE 4
+#elif CACHE_LINE_SIZE == 8
+#define LG_CACHE_LINE_SIZE 3
+#else
+# error "Invalid cache line size!"
+#endif
+
+/*
+ * Most of this code is taken from 74xx_7xx/cache.S
+ * and then cleaned up a bit
+ */
+
+/*
+ * Invalidate L1 instruction cache.
+ */
+_GLOBAL(invalidate_l1_instruction_cache)
+ /* use invalidate-all bit in HID0 */
+ mfspr r3,HID0
+ ori r3,r3,HID0_ICFI
+ mtspr HID0,r3
+ isync
+ blr
+
+/*
+ * Invalidate L1 data cache.
+ */
+_GLOBAL(invalidate_l1_data_cache)
+ mfspr r3,HID0
+ ori r3,r3,HID0_DCFI
+ mtspr HID0,r3
+ isync
+ blr
+
+/*
+ * Flush data cache.
+ */
+_GLOBAL(flush_dcache)
+ lis r3,0
+ lis r5,CACHE_LINE_SIZE
+flush:
+ cmp 0,1,r3,r5
+ bge done
+ lwz r5,0(r3)
+ lis r5,CACHE_LINE_SIZE
+ addi r3,r3,0x4
+ b flush
+done:
+ blr
+/*
+ * Write any modified data cache blocks out to memory
+ * and invalidate the corresponding instruction cache blocks.
+ * This is a no-op on the 601.
+ *
+ * flush_icache_range(unsigned long start, unsigned long stop)
+ */
+_GLOBAL(flush_icache_range)
+ li r5,CACHE_LINE_SIZE-1
+ andc r3,r3,r5
+ subf r4,r3,r4
+ add r4,r4,r5
+ srwi. r4,r4,LG_CACHE_LINE_SIZE
+ beqlr
+ mtctr r4
+ mr r6,r3
+1: dcbst 0,r3
+ addi r3,r3,CACHE_LINE_SIZE
+ bdnz 1b
+ sync /* wait for dcbst's to get to ram */
+ mtctr r4
+2: icbi 0,r6
+ addi r6,r6,CACHE_LINE_SIZE
+ bdnz 2b
+ sync /* additional sync needed on g4 */
+ isync
+ blr
+/*
+ * Write any modified data cache blocks out to memory.
+ * Does not invalidate the corresponding cache lines (especially for
+ * any corresponding instruction cache).
+ *
+ * clean_dcache_range(unsigned long start, unsigned long stop)
+ */
+_GLOBAL(clean_dcache_range)
+ li r5,CACHE_LINE_SIZE-1
+ andc r3,r3,r5 /* align r3 down to cache line */
+ subf r4,r3,r4 /* r4 = offset of stop from start of cache line */
+ add r4,r4,r5 /* r4 += cache_line_size-1 */
+ srwi. r4,r4,LG_CACHE_LINE_SIZE /* r4 = number of cache lines to flush */
+ beqlr /* if r4 == 0 return */
+ mtctr r4 /* ctr = r4 */
+
+ sync
+1: dcbst 0,r3
+ addi r3,r3,CACHE_LINE_SIZE
+ bdnz 1b
+ sync /* wait for dcbst's to get to ram */
+ blr
+
+/*
+ * Write any modified data cache blocks out to memory
+ * and invalidate the corresponding instruction cache blocks.
+ *
+ * flush_dcache_range(unsigned long start, unsigned long stop)
+ */
+_GLOBAL(flush_dcache_range)
+ li r5,CACHE_LINE_SIZE-1
+ andc r3,r3,r5
+ subf r4,r3,r4
+ add r4,r4,r5
+ srwi. r4,r4,LG_CACHE_LINE_SIZE
+ beqlr
+ mtctr r4
+
+ sync
+1: dcbf 0,r3
+ addi r3,r3,CACHE_LINE_SIZE
+ bdnz 1b
+ sync /* wait for dcbf's to get to ram */
+ blr
+
+/*
+ * Like above, but invalidate the D-cache. This is used by the 8xx
+ * to invalidate the cache so the PPC core doesn't get stale data
+ * from the CPM (no cache snooping here :-).
+ *
+ * invalidate_dcache_range(unsigned long start, unsigned long stop)
+ */
+_GLOBAL(invalidate_dcache_range)
+ li r5,CACHE_LINE_SIZE-1
+ andc r3,r3,r5
+ subf r4,r3,r4
+ add r4,r4,r5
+ srwi. r4,r4,LG_CACHE_LINE_SIZE
+ beqlr
+ mtctr r4
+
+ sync
+1: dcbi 0,r3
+ addi r3,r3,CACHE_LINE_SIZE
+ bdnz 1b
+ sync /* wait for dcbi's to get to ram */
+ blr
+
+/*
+ * Flush a particular page from the data cache to RAM.
+ * Note: this is necessary because the instruction cache does *not*
+ * snoop from the data cache.
+ *
+ * void __flush_page_to_ram(void *page)
+ */
+_GLOBAL(__flush_page_to_ram)
+ rlwinm r3,r3,0,0,19 /* Get page base address */
+ li r4,4096/CACHE_LINE_SIZE /* Number of lines in a page */
+ mtctr r4
+ mr r6,r3
+0: dcbst 0,r3 /* Write line to ram */
+ addi r3,r3,CACHE_LINE_SIZE
+ bdnz 0b
+ sync
+ mtctr r4
+1: icbi 0,r6
+ addi r6,r6,CACHE_LINE_SIZE
+ bdnz 1b
+ sync
+ isync
+ blr
+
+/*
+ * Flush a particular page from the instruction cache.
+ * Note: this is necessary because the instruction cache does *not*
+ * snoop from the data cache.
+ *
+ * void __flush_icache_page(void *page)
+ */
+_GLOBAL(__flush_icache_page)
+ li r4,4096/CACHE_LINE_SIZE /* Number of lines in a page */
+ mtctr r4
+1: icbi 0,r3
+ addi r3,r3,CACHE_LINE_SIZE
+ bdnz 1b
+ sync
+ isync
+ blr
+
+/*
+ * Clear a page using the dcbz instruction, which doesn't cause any
+ * memory traffic (except to write out any cache lines which get
+ * displaced). This only works on cacheable memory.
+ */
+_GLOBAL(clear_page)
+ li r0,4096/CACHE_LINE_SIZE
+ mtctr r0
+1: dcbz 0,r3
+ addi r3,r3,CACHE_LINE_SIZE
+ bdnz 1b
+ blr
+
+/*
+ * Enable L1 Instruction cache
+ */
+_GLOBAL(icache_enable)
+ mfspr r3, HID0
+ li r5, HID0_ICFI|HID0_ILOCK
+ andc r3, r3, r5
+ ori r3, r3, HID0_ICE
+ ori r5, r3, HID0_ICFI
+ mtspr HID0, r5
+ mtspr HID0, r3
+ isync
+ blr
+
+/*
+ * Disable L1 Instruction cache
+ */
+_GLOBAL(icache_disable)
+ mflr r4
+ bl invalidate_l1_instruction_cache /* uses r3 */
+ sync
+ mtlr r4
+ mfspr r3, HID0
+ li r5, 0
+ ori r5, r5, HID0_ICE
+ andc r3, r3, r5
+ mtspr HID0, r3
+ isync
+ blr
+
+/*
+ * Is instruction cache enabled?
+ */
+_GLOBAL(icache_status)
+ mfspr r3, HID0
+ andi. r3, r3, HID0_ICE
+ blr
+
+
+_GLOBAL(l1dcache_enable)
+ mfspr r3, HID0
+ li r5, HID0_DCFI|HID0_DLOCK
+ andc r3, r3, r5
+ mtspr HID0, r3 /* no invalidate, unlock */
+ ori r3, r3, HID0_DCE
+ ori r5, r3, HID0_DCFI
+ mtspr HID0, r5 /* enable + invalidate */
+ mtspr HID0, r3 /* enable */
+ sync
+ blr
+
+/*
+ * Enable data cache(s) - L1 and optionally L2
+ * Calls l2cache_enable. LR saved in r5
+ */
+_GLOBAL(dcache_enable)
+ mfspr r3, HID0
+ li r5, HID0_DCFI|HID0_DLOCK
+ andc r3, r3, r5
+ mtspr HID0, r3 /* no invalidate, unlock */
+ ori r3, r3, HID0_DCE
+ ori r5, r3, HID0_DCFI
+ mtspr HID0, r5 /* enable + invalidate */
+ mtspr HID0, r3 /* enable */
+ sync
+#ifdef CONFIG_SYS_L2
+ mflr r5
+ bl l2cache_enable /* uses r3 and r4 */
+ sync
+ mtlr r5
+#endif
+ blr
+
+
+/*
+ * Disable data cache(s) - L1 and optionally L2
+ * Calls flush_dcache and l2cache_disable_no_flush.
+ * LR saved in r4
+ */
+_GLOBAL(dcache_disable)
+ mflr r4 /* save link register */
+ bl flush_dcache /* uses r3 and r5 */
+ sync
+ mfspr r3, HID0
+ li r5, HID0_DCFI|HID0_DLOCK
+ andc r3, r3, r5
+ mtspr HID0, r3 /* no invalidate, unlock */
+ li r5, HID0_DCE|HID0_DCFI
+ andc r3, r3, r5 /* no enable, no invalidate */
+ mtspr HID0, r3
+ sync
+#ifdef CONFIG_SYS_L2
+ bl l2cache_disable_no_flush /* uses r3 */
+#endif
+ mtlr r4 /* restore link register */
+ blr
+
+/*
+ * Is data cache enabled?
+ */
+_GLOBAL(dcache_status)
+ mfspr r3, HID0
+ andi. r3, r3, HID0_DCE
+ blr
+
+/*
+ * Invalidate L2 cache using L2I, assume L2 is enabled
+ */
+_GLOBAL(l2cache_invalidate)
+ mfspr r3, l2cr
+ rlwinm. r3, r3, 0, 0, 0
+ beq 1f
+
+ mfspr r3, l2cr
+ rlwinm r3, r3, 0, 1, 31
+
+#ifdef CONFIG_ALTIVEC
+ dssall
+#endif
+ sync
+ mtspr l2cr, r3
+ sync
+1: mfspr r3, l2cr
+ oris r3, r3, L2CR_L2I@h
+ mtspr l2cr, r3
+
+invl2:
+ mfspr r3, l2cr
+ andis. r3, r3, L2CR_L2I@h
+ bne invl2
+ blr
+
+/*
+ * Enable L2 cache
+ * Calls l2cache_invalidate. LR is saved in r4
+ */
+_GLOBAL(l2cache_enable)
+ mflr r4 /* save link register */
+ bl l2cache_invalidate /* uses r3 */
+ sync
+ lis r3, L2_ENABLE@h
+ ori r3, r3, L2_ENABLE@l
+ mtspr l2cr, r3
+ isync
+ mtlr r4 /* restore link register */
+ blr
+
+/*
+ * Disable L2 cache
+ * Calls flush_dcache. LR is saved in r4
+ */
+_GLOBAL(l2cache_disable)
+ mflr r4 /* save link register */
+ bl flush_dcache /* uses r3 and r5 */
+ sync
+ mtlr r4 /* restore link register */
+l2cache_disable_no_flush: /* provide way to disable L2 w/o flushing */
+ lis r3, L2_INIT@h
+ ori r3, r3, L2_INIT@l
+ mtspr l2cr, r3
+ isync
+ blr
diff --git a/arch/ppc/cpu/mpc86xx/config.mk b/arch/ppc/cpu/mpc86xx/config.mk
new file mode 100644
index 0000000..ca2f837
--- /dev/null
+++ b/arch/ppc/cpu/mpc86xx/config.mk
@@ -0,0 +1,27 @@
+#
+# (C) Copyright 2004 Freescale Semiconductor.
+# Jeff Brown
+#
+# 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
+#
+
+PLATFORM_RELFLAGS += -fPIC -meabi
+
+PLATFORM_CPPFLAGS += -ffixed-r2 -mstring
+PLATFORM_CPPFLAGS += -maltivec -mabi=altivec -msoft-float
diff --git a/arch/ppc/cpu/mpc86xx/cpu.c b/arch/ppc/cpu/mpc86xx/cpu.c
new file mode 100644
index 0000000..1887575
--- /dev/null
+++ b/arch/ppc/cpu/mpc86xx/cpu.c
@@ -0,0 +1,233 @@
+/*
+ * Copyright 2006,2009-2010 Freescale Semiconductor, Inc.
+ * Jeff Brown
+ * Srikanth Srinivasan (srikanth.srinivasan@freescale.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 <watchdog.h>
+#include <command.h>
+#include <asm/cache.h>
+#include <asm/mmu.h>
+#include <mpc86xx.h>
+#include <asm/fsl_law.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * Default board reset function
+ */
+static void
+__board_reset(void)
+{
+ /* Do nothing */
+}
+void board_reset(void) __attribute__((weak, alias("__board_reset")));
+
+
+int
+checkcpu(void)
+{
+ sys_info_t sysinfo;
+ uint pvr, svr;
+ uint ver;
+ uint major, minor;
+ char buf1[32], buf2[32];
+ volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
+ volatile ccsr_gur_t *gur = &immap->im_gur;
+ struct cpu_type *cpu;
+ uint msscr0 = mfspr(MSSCR0);
+
+ svr = get_svr();
+ ver = SVR_SOC_VER(svr);
+ major = SVR_MAJ(svr);
+ minor = SVR_MIN(svr);
+
+ if (cpu_numcores() > 1) {
+#ifndef CONFIG_MP
+ puts("Unicore software on multiprocessor system!!\n"
+ "To enable mutlticore build define CONFIG_MP\n");
+#endif
+ }
+ puts("CPU: ");
+
+ cpu = gd->cpu;
+
+ puts(cpu->name);
+
+ printf(", Version: %d.%d, (0x%08x)\n", major, minor, svr);
+ puts("Core: ");
+
+ pvr = get_pvr();
+ ver = PVR_E600_VER(pvr);
+ major = PVR_E600_MAJ(pvr);
+ minor = PVR_E600_MIN(pvr);
+
+ printf("E600 Core %d", (msscr0 & 0x20) ? 1 : 0 );
+ if (gur->pordevsr & MPC86xx_PORDEVSR_CORE1TE)
+ puts("\n Core1Translation Enabled");
+ debug(" (MSSCR0=%x, PORDEVSR=%x)", msscr0, gur->pordevsr);
+
+ printf(", Version: %d.%d, (0x%08x)\n", major, minor, pvr);
+
+ get_sys_info(&sysinfo);
+
+ puts("Clock Configuration:\n");
+ printf(" CPU:%-4s MHz, ", strmhz(buf1, sysinfo.freqProcessor));
+ printf("MPX:%-4s MHz\n", strmhz(buf1, sysinfo.freqSystemBus));
+ printf(" DDR:%-4s MHz (%s MT/s data rate), ",
+ strmhz(buf1, sysinfo.freqSystemBus / 2),
+ strmhz(buf2, sysinfo.freqSystemBus));
+
+ if (sysinfo.freqLocalBus > LCRR_CLKDIV) {
+ printf("LBC:%-4s MHz\n", strmhz(buf1, sysinfo.freqLocalBus));
+ } else {
+ printf("LBC: unknown (LCRR[CLKDIV] = 0x%02lx)\n",
+ sysinfo.freqLocalBus);
+ }
+
+ puts("L1: D-cache 32 KB enabled\n");
+ puts(" I-cache 32 KB enabled\n");
+
+ puts("L2: ");
+ if (get_l2cr() & 0x80000000) {
+#if defined(CONFIG_MPC8610)
+ puts("256");
+#elif defined(CONFIG_MPC8641)
+ puts("512");
+#endif
+ puts(" KB enabled\n");
+ } else {
+ puts("Disabled\n");
+ }
+
+ return 0;
+}
+
+
+void
+do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
+ volatile ccsr_gur_t *gur = &immap->im_gur;
+
+ /* Attempt board-specific reset */
+ board_reset();
+
+ /* Next try asserting HRESET_REQ */
+ out_be32(&gur->rstcr, MPC86xx_RSTCR_HRST_REQ);
+
+ while (1)
+ ;
+}
+
+
+/*
+ * Get timebase clock frequency
+ */
+unsigned long
+get_tbclk(void)
+{
+ sys_info_t sys_info;
+
+ get_sys_info(&sys_info);
+ return (sys_info.freqSystemBus + 3L) / 4L;
+}
+
+
+#if defined(CONFIG_WATCHDOG)
+void
+watchdog_reset(void)
+{
+#if defined(CONFIG_MPC8610)
+ /*
+ * This actually feed the hard enabled watchdog.
+ */
+ volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
+ volatile ccsr_wdt_t *wdt = &immap->im_wdt;
+ volatile ccsr_gur_t *gur = &immap->im_gur;
+ u32 tmp = gur->pordevsr;
+
+ if (tmp & 0x4000) {
+ wdt->swsrr = 0x556c;
+ wdt->swsrr = 0xaa39;
+ }
+#endif
+}
+#endif /* CONFIG_WATCHDOG */
+
+/*
+ * Print out the state of various machine registers.
+ * Currently prints out LAWs, BR0/OR0, and BATs
+ */
+void mpc86xx_reginfo(void)
+{
+ immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
+ ccsr_lbc_t *lbc = &immap->im_lbc;
+
+ print_bats();
+ print_laws();
+
+ printf ("Local Bus Controller Registers\n"
+ "\tBR0\t0x%08X\tOR0\t0x%08X \n", in_be32(&lbc->br0), in_be32(&lbc->or0));
+ printf("\tBR1\t0x%08X\tOR1\t0x%08X \n", in_be32(&lbc->br1), in_be32(&lbc->or1));
+ printf("\tBR2\t0x%08X\tOR2\t0x%08X \n", in_be32(&lbc->br2), in_be32(&lbc->or2));
+ printf("\tBR3\t0x%08X\tOR3\t0x%08X \n", in_be32(&lbc->br3), in_be32(&lbc->or3));
+ printf("\tBR4\t0x%08X\tOR4\t0x%08X \n", in_be32(&lbc->br4), in_be32(&lbc->or4));
+ printf("\tBR5\t0x%08X\tOR5\t0x%08X \n", in_be32(&lbc->br5), in_be32(&lbc->or5));
+ printf("\tBR6\t0x%08X\tOR6\t0x%08X \n", in_be32(&lbc->br6), in_be32(&lbc->or6));
+ printf("\tBR7\t0x%08X\tOR7\t0x%08X \n", in_be32(&lbc->br7), in_be32(&lbc->or7));
+
+}
+
+/*
+ * Set the DDR BATs to reflect the actual size of DDR.
+ *
+ * dram_size is the actual size of DDR, in bytes
+ *
+ * Note: we assume that CONFIG_MAX_MEM_MAPPED is 2G or smaller as we only
+ * are using a single BAT to cover DDR.
+ *
+ * If this is not true, (e.g. CONFIG_MAX_MEM_MAPPED is 2GB but HID0_XBSEN
+ * is not defined) then we might have a situation where U-Boot will attempt
+ * to relocated itself outside of the region mapped by DBAT0.
+ * This will cause a machine check.
+ *
+ * Currently we are limited to power of two sized DDR since we only use a
+ * single bat. If a non-power of two size is used that is less than
+ * CONFIG_MAX_MEM_MAPPED u-boot will crash.
+ *
+ */
+void setup_ddr_bat(phys_addr_t dram_size)
+{
+ unsigned long batu, bl;
+
+ bl = TO_BATU_BL(min(dram_size, CONFIG_MAX_MEM_MAPPED));
+
+ if (BATU_SIZE(bl) != dram_size) {
+ u64 sz = (u64)dram_size - BATU_SIZE(bl);
+ print_size(sz, " left unmapped\n");
+ }
+
+ batu = bl | BATU_VS | BATU_VP;
+ write_bat(DBAT0, batu, CONFIG_SYS_DBAT0L);
+ write_bat(IBAT0, batu, CONFIG_SYS_IBAT0L);
+}
diff --git a/arch/ppc/cpu/mpc86xx/cpu_init.c b/arch/ppc/cpu/mpc86xx/cpu_init.c
new file mode 100644
index 0000000..b4f047d
--- /dev/null
+++ b/arch/ppc/cpu/mpc86xx/cpu_init.c
@@ -0,0 +1,190 @@
+/*
+ * Copyright 2004,2009 Freescale Semiconductor, Inc.
+ * Jeff Brown
+ * Srikanth Srinivasan (srikanth.srinivasan@freescale.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
+ */
+
+/*
+ * cpu_init.c - low level cpu init
+ */
+
+#include <config.h>
+#include <common.h>
+#include <mpc86xx.h>
+#include <asm/mmu.h>
+#include <asm/fsl_law.h>
+#include <asm/mp.h>
+
+void setup_bats(void);
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * Breathe some life into the CPU...
+ *
+ * Set up the memory map
+ * initialize a bunch of registers
+ */
+
+void cpu_init_f(void)
+{
+ volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
+ volatile ccsr_lbc_t *memctl = &immap->im_lbc;
+
+ /* Pointer is writable since we allocated a register for it */
+ gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
+
+ /* Clear initial global data */
+ memset ((void *) gd, 0, sizeof (gd_t));
+
+#ifdef CONFIG_FSL_LAW
+ init_laws();
+#endif
+
+ setup_bats();
+
+ /* Map banks 0 and 1 to the FLASH banks 0 and 1 at preliminary
+ * addresses - these have to be modified later when FLASH size
+ * has been determined
+ */
+
+#if defined(CONFIG_SYS_OR0_REMAP)
+ memctl->or0 = CONFIG_SYS_OR0_REMAP;
+#endif
+#if defined(CONFIG_SYS_OR1_REMAP)
+ memctl->or1 = CONFIG_SYS_OR1_REMAP;
+#endif
+
+ /* now restrict to preliminary range */
+#if defined(CONFIG_SYS_BR0_PRELIM) && defined(CONFIG_SYS_OR0_PRELIM)
+ memctl->br0 = CONFIG_SYS_BR0_PRELIM;
+ memctl->or0 = CONFIG_SYS_OR0_PRELIM;
+#endif
+
+#if defined(CONFIG_SYS_BR1_PRELIM) && defined(CONFIG_SYS_OR1_PRELIM)
+ memctl->or1 = CONFIG_SYS_OR1_PRELIM;
+ memctl->br1 = CONFIG_SYS_BR1_PRELIM;
+#endif
+
+#if defined(CONFIG_SYS_BR2_PRELIM) && defined(CONFIG_SYS_OR2_PRELIM)
+ memctl->or2 = CONFIG_SYS_OR2_PRELIM;
+ memctl->br2 = CONFIG_SYS_BR2_PRELIM;
+#endif
+
+#if defined(CONFIG_SYS_BR3_PRELIM) && defined(CONFIG_SYS_OR3_PRELIM)
+ memctl->or3 = CONFIG_SYS_OR3_PRELIM;
+ memctl->br3 = CONFIG_SYS_BR3_PRELIM;
+#endif
+
+#if defined(CONFIG_SYS_BR4_PRELIM) && defined(CONFIG_SYS_OR4_PRELIM)
+ memctl->or4 = CONFIG_SYS_OR4_PRELIM;
+ memctl->br4 = CONFIG_SYS_BR4_PRELIM;
+#endif
+
+#if defined(CONFIG_SYS_BR5_PRELIM) && defined(CONFIG_SYS_OR5_PRELIM)
+ memctl->or5 = CONFIG_SYS_OR5_PRELIM;
+ memctl->br5 = CONFIG_SYS_BR5_PRELIM;
+#endif
+
+#if defined(CONFIG_SYS_BR6_PRELIM) && defined(CONFIG_SYS_OR6_PRELIM)
+ memctl->or6 = CONFIG_SYS_OR6_PRELIM;
+ memctl->br6 = CONFIG_SYS_BR6_PRELIM;
+#endif
+
+#if defined(CONFIG_SYS_BR7_PRELIM) && defined(CONFIG_SYS_OR7_PRELIM)
+ memctl->or7 = CONFIG_SYS_OR7_PRELIM;
+ memctl->br7 = CONFIG_SYS_BR7_PRELIM;
+#endif
+#if defined(CONFIG_FSL_DMA)
+ dma_init();
+#endif
+
+ /* enable the timebase bit in HID0 */
+ set_hid0(get_hid0() | 0x4000000);
+
+ /* enable EMCP, SYNCBE | ABE bits in HID1 */
+ set_hid1(get_hid1() | 0x80000C00);
+}
+
+/*
+ * initialize higher level parts of CPU like timers
+ */
+int cpu_init_r(void)
+{
+#if defined(CONFIG_MP)
+ setup_mp();
+#endif
+ return 0;
+}
+
+/* Set up BAT registers */
+void setup_bats(void)
+{
+#if defined(CONFIG_SYS_DBAT0U) && defined(CONFIG_SYS_DBAT0L)
+ write_bat(DBAT0, CONFIG_SYS_DBAT0U, CONFIG_SYS_DBAT0L);
+#endif
+#if defined(CONFIG_SYS_IBAT0U) && defined(CONFIG_SYS_IBAT0L)
+ write_bat(IBAT0, CONFIG_SYS_IBAT0U, CONFIG_SYS_IBAT0L);
+#endif
+ write_bat(DBAT1, CONFIG_SYS_DBAT1U, CONFIG_SYS_DBAT1L);
+ write_bat(IBAT1, CONFIG_SYS_IBAT1U, CONFIG_SYS_IBAT1L);
+ write_bat(DBAT2, CONFIG_SYS_DBAT2U, CONFIG_SYS_DBAT2L);
+ write_bat(IBAT2, CONFIG_SYS_IBAT2U, CONFIG_SYS_IBAT2L);
+ write_bat(DBAT3, CONFIG_SYS_DBAT3U, CONFIG_SYS_DBAT3L);
+ write_bat(IBAT3, CONFIG_SYS_IBAT3U, CONFIG_SYS_IBAT3L);
+ write_bat(DBAT4, CONFIG_SYS_DBAT4U, CONFIG_SYS_DBAT4L);
+ write_bat(IBAT4, CONFIG_SYS_IBAT4U, CONFIG_SYS_IBAT4L);
+ write_bat(DBAT5, CONFIG_SYS_DBAT5U, CONFIG_SYS_DBAT5L);
+ write_bat(IBAT5, CONFIG_SYS_IBAT5U, CONFIG_SYS_IBAT5L);
+ write_bat(DBAT6, CONFIG_SYS_DBAT6U, CONFIG_SYS_DBAT6L);
+ write_bat(IBAT6, CONFIG_SYS_IBAT6U, CONFIG_SYS_IBAT6L);
+ write_bat(DBAT7, CONFIG_SYS_DBAT7U, CONFIG_SYS_DBAT7L);
+ write_bat(IBAT7, CONFIG_SYS_IBAT7U, CONFIG_SYS_IBAT7L);
+
+ return;
+}
+
+#ifdef CONFIG_ADDR_MAP
+/* Initialize address mapping array */
+void init_addr_map(void)
+{
+ int i;
+ ppc_bat_t bat = DBAT0;
+ phys_size_t size;
+ unsigned long upper, lower;
+
+ for (i = 0; i < CONFIG_SYS_NUM_ADDR_MAP; i++, bat++) {
+ if (read_bat(bat, &upper, &lower) != -1) {
+ if (!BATU_VALID(upper))
+ size = 0;
+ else
+ size = BATU_SIZE(upper);
+ addrmap_set_entry(BATU_VADDR(upper), BATL_PADDR(lower),
+ size, i);
+ }
+#ifdef CONFIG_HIGH_BATS
+ /* High bats are not contiguous with low BAT numbers */
+ if (bat == DBAT3)
+ bat = DBAT4 - 1;
+#endif
+ }
+}
+#endif
diff --git a/arch/ppc/cpu/mpc86xx/ddr-8641.c b/arch/ppc/cpu/mpc86xx/ddr-8641.c
new file mode 100644
index 0000000..b8f2c93
--- /dev/null
+++ b/arch/ppc/cpu/mpc86xx/ddr-8641.c
@@ -0,0 +1,85 @@
+/*
+ * Copyright 2008 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
+ * Version 2 as published by the Free Software Foundation.
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/fsl_ddr_sdram.h>
+
+#if (CONFIG_CHIP_SELECTS_PER_CTRL > 4)
+#error Invalid setting for CONFIG_CHIP_SELECTS_PER_CTRL
+#endif
+
+void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs,
+ unsigned int ctrl_num)
+{
+ unsigned int i;
+ volatile ccsr_ddr_t *ddr;
+
+ switch (ctrl_num) {
+ case 0:
+ ddr = (void *)CONFIG_SYS_MPC86xx_DDR_ADDR;
+ break;
+ case 1:
+ ddr = (void *)CONFIG_SYS_MPC86xx_DDR2_ADDR;
+ break;
+ default:
+ printf("%s unexpected ctrl_num = %u\n", __FUNCTION__, ctrl_num);
+ return;
+ }
+
+ for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) {
+ if (i == 0) {
+ out_be32(&ddr->cs0_bnds, regs->cs[i].bnds);
+ out_be32(&ddr->cs0_config, regs->cs[i].config);
+
+ } else if (i == 1) {
+ out_be32(&ddr->cs1_bnds, regs->cs[i].bnds);
+ out_be32(&ddr->cs1_config, regs->cs[i].config);
+
+ } else if (i == 2) {
+ out_be32(&ddr->cs2_bnds, regs->cs[i].bnds);
+ out_be32(&ddr->cs2_config, regs->cs[i].config);
+
+ } else if (i == 3) {
+ out_be32(&ddr->cs3_bnds, regs->cs[i].bnds);
+ out_be32(&ddr->cs3_config, regs->cs[i].config);
+ }
+ }
+
+ out_be32(&ddr->timing_cfg_3, regs->timing_cfg_3);
+ out_be32(&ddr->timing_cfg_0, regs->timing_cfg_0);
+ out_be32(&ddr->timing_cfg_1, regs->timing_cfg_1);
+ out_be32(&ddr->timing_cfg_2, regs->timing_cfg_2);
+ out_be32(&ddr->sdram_cfg_2, regs->ddr_sdram_cfg_2);
+ out_be32(&ddr->sdram_mode, regs->ddr_sdram_mode);
+ out_be32(&ddr->sdram_mode_2, regs->ddr_sdram_mode_2);
+ out_be32(&ddr->sdram_mode_cntl, regs->ddr_sdram_md_cntl);
+ out_be32(&ddr->sdram_interval, regs->ddr_sdram_interval);
+ out_be32(&ddr->sdram_data_init, regs->ddr_data_init);
+ out_be32(&ddr->sdram_clk_cntl, regs->ddr_sdram_clk_cntl);
+ out_be32(&ddr->init_addr, regs->ddr_init_addr);
+ out_be32(&ddr->init_ext_addr, regs->ddr_init_ext_addr);
+
+ debug("before go\n");
+
+ /*
+ * 200 painful micro-seconds must elapse between
+ * the DDR clock setup and the DDR config enable.
+ */
+ udelay(200);
+ asm volatile("sync;isync");
+
+ out_be32(&ddr->sdram_cfg, regs->ddr_sdram_cfg);
+
+ /*
+ * Poll DDR_SDRAM_CFG_2[D_INIT] bit until auto-data init is done
+ */
+ while (in_be32(&ddr->sdram_cfg_2) & 0x10) {
+ udelay(10000); /* throttle polling rate */
+ }
+}
diff --git a/arch/ppc/cpu/mpc86xx/fdt.c b/arch/ppc/cpu/mpc86xx/fdt.c
new file mode 100644
index 0000000..51f3f4c
--- /dev/null
+++ b/arch/ppc/cpu/mpc86xx/fdt.c
@@ -0,0 +1,60 @@
+/*
+ * Copyright 2008 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
+ * Version 2 as published by the Free Software Foundation.
+ */
+
+#include <common.h>
+#include <libfdt.h>
+#include <fdt_support.h>
+#include <asm/mp.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+extern void ft_fixup_num_cores(void *blob);
+
+void ft_cpu_setup(void *blob, bd_t *bd)
+{
+#ifdef CONFIG_MP
+ int off;
+ u32 bootpg = determine_mp_bootpg();
+#endif
+
+ do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
+ "timebase-frequency", bd->bi_busfreq / 4, 1);
+ do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
+ "bus-frequency", bd->bi_busfreq, 1);
+ do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
+ "clock-frequency", bd->bi_intfreq, 1);
+ do_fixup_by_prop_u32(blob, "device_type", "soc", 4,
+ "bus-frequency", bd->bi_busfreq, 1);
+
+#if defined(CONFIG_MPC8641)
+ do_fixup_by_compat_u32(blob, "fsl,mpc8641-localbus",
+ "bus-frequency", gd->lbc_clk, 1);
+#endif
+ do_fixup_by_compat_u32(blob, "fsl,elbc",
+ "bus-frequency", gd->lbc_clk, 1);
+
+ fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize);
+
+#if defined(CONFIG_HAS_ETH0) || defined(CONFIG_HAS_ETH1) \
+ || defined(CONFIG_HAS_ETH2) || defined(CONFIG_HAS_ETH3)
+ fdt_fixup_ethernet(blob);
+#endif
+
+#ifdef CONFIG_SYS_NS16550
+ do_fixup_by_compat_u32(blob, "ns16550",
+ "clock-frequency", CONFIG_SYS_NS16550_CLK, 1);
+#endif
+
+#ifdef CONFIG_MP
+ /* Reserve the boot page so OSes dont use it */
+ off = fdt_add_mem_rsv(blob, bootpg, (u64)4096);
+ if (off < 0)
+ printf("%s: %s\n", __FUNCTION__, fdt_strerror(off));
+#endif
+ ft_fixup_num_cores(blob);
+}
diff --git a/arch/ppc/cpu/mpc86xx/interrupts.c b/arch/ppc/cpu/mpc86xx/interrupts.c
new file mode 100644
index 0000000..c78fc72
--- /dev/null
+++ b/arch/ppc/cpu/mpc86xx/interrupts.c
@@ -0,0 +1,115 @@
+/*
+ * (C) Copyright 2000-2002
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2002 (440 port)
+ * Scott McNutt, Artesyn Communication Producs, smcnutt@artsyncp.com
+ *
+ * (C) Copyright 2003 Motorola Inc. (MPC85xx port)
+ * Xianghua Xiao (X.Xiao@motorola.com)
+ *
+ * (C) Copyright 2004, 2007 Freescale Semiconductor. (MPC86xx Port)
+ * Jeff Brown
+ * Srikanth Srinivasan (srikanth.srinivasan@freescale.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 <mpc86xx.h>
+#include <command.h>
+#include <asm/processor.h>
+
+int interrupt_init_cpu(unsigned long *decrementer_count)
+{
+ volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
+ volatile ccsr_pic_t *pic = &immr->im_pic;
+
+ pic->gcr = MPC86xx_PICGCR_RST;
+ while (pic->gcr & MPC86xx_PICGCR_RST)
+ ;
+ pic->gcr = MPC86xx_PICGCR_MODE;
+
+ *decrementer_count = get_tbclk() / CONFIG_SYS_HZ;
+ debug("interrupt init: tbclk() = %d MHz, decrementer_count = %ld\n",
+ (get_tbclk() / 1000000),
+ *decrementer_count);
+
+#ifdef CONFIG_INTERRUPTS
+
+ pic->iivpr1 = 0x810001; /* 50220 enable mcm interrupts */
+ debug("iivpr1@%x = %x\n", &pic->iivpr1, pic->iivpr1);
+
+ pic->iivpr2 = 0x810002; /* 50240 enable ddr interrupts */
+ debug("iivpr2@%x = %x\n", &pic->iivpr2, pic->iivpr2);
+
+ pic->iivpr3 = 0x810003; /* 50260 enable lbc interrupts */
+ debug("iivpr3@%x = %x\n", &pic->iivpr3, pic->iivpr3);
+
+#if defined(CONFIG_PCI1) || defined(CONFIG_PCIE1)
+ pic->iivpr8 = 0x810008; /* enable pcie1 interrupts */
+ debug("iivpr8@%x = %x\n", &pic->iivpr8, pic->iivpr8);
+#endif
+#if defined(CONFIG_PCI2) || defined(CONFIG_PCIE2)
+ pic->iivpr9 = 0x810009; /* enable pcie2 interrupts */
+ debug("iivpr9@%x = %x\n", &pic->iivpr9, pic->iivpr9);
+#endif
+
+ pic->ctpr = 0; /* 40080 clear current task priority register */
+#endif
+
+ return 0;
+}
+
+/*
+ * timer_interrupt - gets called when the decrementer overflows,
+ * with interrupts disabled.
+ * Trivial implementation - no need to be really accurate.
+ */
+void timer_interrupt_cpu(struct pt_regs *regs)
+{
+ /* nothing to do here */
+}
+
+/*
+ * Install and free a interrupt handler. Not implemented yet.
+ */
+void irq_install_handler(int vec, interrupt_handler_t *handler, void *arg)
+{
+}
+
+void irq_free_handler(int vec)
+{
+}
+
+/*
+ * irqinfo - print information about PCI devices,not implemented.
+ */
+int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ return 0;
+}
+
+/*
+ * Handle external interrupts
+ */
+void external_interrupt(struct pt_regs *regs)
+{
+ puts("external_interrupt (oops!)\n");
+}
diff --git a/arch/ppc/cpu/mpc86xx/mp.c b/arch/ppc/cpu/mpc86xx/mp.c
new file mode 100644
index 0000000..b4a0faa
--- /dev/null
+++ b/arch/ppc/cpu/mpc86xx/mp.c
@@ -0,0 +1,125 @@
+/*
+ * Copyright 2008-2010 Freescale Semiconductor, Inc.
+ *
+ * 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/processor.h>
+#include <asm/mmu.h>
+#include <ioports.h>
+#include <lmb.h>
+#include <asm/io.h>
+#include <asm/mp.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int cpu_reset(int nr)
+{
+ /* dummy function so common/cmd_mp.c will build
+ * should be implemented in the future, when cpu_release()
+ * is supported. Be aware there may be a similiar bug
+ * as exists on MPC85xx w/its PIC having a timing window
+ * associated to resetting the core */
+ return 1;
+}
+
+int cpu_status(int nr)
+{
+ /* dummy function so common/cmd_mp.c will build */
+ return 0;
+}
+
+int cpu_disable(int nr)
+{
+ volatile immap_t *immap = (immap_t *) CONFIG_SYS_CCSRBAR;
+ volatile ccsr_gur_t *gur = &immap->im_gur;
+
+ switch (nr) {
+ case 0:
+ setbits_be32(&gur->devdisr, MPC86xx_DEVDISR_CPU0);
+ break;
+ case 1:
+ setbits_be32(&gur->devdisr, MPC86xx_DEVDISR_CPU1);
+ break;
+ default:
+ printf("Invalid cpu number for disable %d\n", nr);
+ return 1;
+ }
+
+ return 0;
+}
+
+int cpu_release(int nr, int argc, char *argv[])
+{
+ /* dummy function so common/cmd_mp.c will build
+ * should be implemented in the future */
+ return 1;
+}
+
+u32 determine_mp_bootpg(void)
+{
+ /* if we have 4G or more of memory, put the boot page at 4Gb-1M */
+ if ((u64)gd->ram_size > 0xfffff000)
+ return (0xfff00000);
+
+ return (gd->ram_size - (1024 * 1024));
+}
+
+void cpu_mp_lmb_reserve(struct lmb *lmb)
+{
+ u32 bootpg = determine_mp_bootpg();
+
+ /* tell u-boot we stole a page */
+ lmb_reserve(lmb, bootpg, 4096);
+}
+
+/*
+ * Copy the code for other cpus to execute into an
+ * aligned location accessible via BPTR
+ */
+void setup_mp(void)
+{
+ extern ulong __secondary_start_page;
+ ulong fixup = (ulong)&__secondary_start_page;
+ u32 bootpg = determine_mp_bootpg();
+ u32 bootpg_va;
+
+ if (bootpg >= CONFIG_SYS_MAX_DDR_BAT_SIZE) {
+ /* We're not covered by the DDR mapping, set up BAT */
+ write_bat(DBAT7, CONFIG_SYS_SCRATCH_VA | BATU_BL_128K |
+ BATU_VS | BATU_VP,
+ bootpg | BATL_PP_RW | BATL_MEMCOHERENCE);
+ bootpg_va = CONFIG_SYS_SCRATCH_VA;
+ } else {
+ bootpg_va = bootpg;
+ }
+
+ memcpy((void *)bootpg_va, (void *)fixup, 4096);
+ flush_cache(bootpg_va, 4096);
+
+ /* remove the temporary BAT mapping */
+ if (bootpg >= CONFIG_SYS_MAX_DDR_BAT_SIZE)
+ write_bat(DBAT7, 0, 0);
+
+ /* If the physical location of bootpg is not at fff00000, set BPTR */
+ if (bootpg != 0xfff00000)
+ out_be32((uint *)(CONFIG_SYS_CCSRBAR + 0x20), 0x80000000 |
+ (bootpg >> 12));
+}
diff --git a/arch/ppc/cpu/mpc86xx/release.S b/arch/ppc/cpu/mpc86xx/release.S
new file mode 100644
index 0000000..67a6f2b
--- /dev/null
+++ b/arch/ppc/cpu/mpc86xx/release.S
@@ -0,0 +1,167 @@
+/*
+ * Copyright 2004, 2007, 2008 Freescale Semiconductor.
+ * Srikanth Srinivasan <srikanth.srinivaan@freescale.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 <mpc86xx.h>
+#include <version.h>
+
+#include <ppc_asm.tmpl>
+#include <ppc_defs.h>
+
+#include <asm/cache.h>
+#include <asm/mmu.h>
+
+/* If this is a multi-cpu system then we need to handle the
+ * 2nd cpu. The assumption is that the 2nd cpu is being
+ * held in boot holdoff mode until the 1st cpu unlocks it
+ * from Linux. We'll do some basic cpu init and then pass
+ * it to the Linux Reset Vector.
+ * Sri: Much of this initialization is not required. Linux
+ * rewrites the bats, and the sprs and also enables the L1 cache.
+ *
+ * Core 0 must copy this to a 1M aligned region and set BPTR
+ * to point to it.
+ */
+ .align 12
+.globl __secondary_start_page
+__secondary_start_page:
+ .space 0x100 /* space over to reset vector loc */
+ mfspr r0, MSSCR0
+ andi. r0, r0, 0x0020
+ rlwinm r0,r0,27,31,31
+ mtspr PIR, r0
+
+ /* Invalidate BATs */
+ li r0, 0
+ mtspr IBAT0U, r0
+ mtspr IBAT1U, r0
+ mtspr IBAT2U, r0
+ mtspr IBAT3U, r0
+ mtspr IBAT4U, r0
+ mtspr IBAT5U, r0
+ mtspr IBAT6U, r0
+ mtspr IBAT7U, r0
+ isync
+ mtspr DBAT0U, r0
+ mtspr DBAT1U, r0
+ mtspr DBAT2U, r0
+ mtspr DBAT3U, r0
+ mtspr DBAT4U, r0
+ mtspr DBAT5U, r0
+ mtspr DBAT6U, r0
+ mtspr DBAT7U, r0
+ isync
+ sync
+
+ /* enable extended addressing */
+ mfspr r0, HID0
+ lis r0, (HID0_HIGH_BAT_EN | HID0_XBSEN | HID0_XAEN)@h
+ ori r0, r0, (HID0_HIGH_BAT_EN | HID0_XBSEN | HID0_XAEN)@l
+ mtspr HID0, r0
+ sync
+ isync
+
+#ifdef CONFIG_SYS_L2
+ /* init the L2 cache */
+ addis r3, r0, L2_INIT@h
+ ori r3, r3, L2_INIT@l
+ sync
+ mtspr l2cr, r3
+#ifdef CONFIG_ALTIVEC
+ dssall
+#endif
+ /* invalidate the L2 cache */
+ mfspr r3, l2cr
+ rlwinm. r3, r3, 0, 0, 0
+ beq 1f
+
+ mfspr r3, l2cr
+ rlwinm r3, r3, 0, 1, 31
+
+#ifdef CONFIG_ALTIVEC
+ dssall
+#endif
+ sync
+ mtspr l2cr, r3
+ sync
+1: mfspr r3, l2cr
+ oris r3, r3, L2CR_L2I@h
+ mtspr l2cr, r3
+
+invl2:
+ mfspr r3, l2cr
+ andis. r3, r3, L2CR_L2I@h
+ bne invl2
+ sync
+#endif
+
+ /* enable and invalidate the data cache */
+ mfspr r3, HID0
+ li r5, HID0_DCFI|HID0_DLOCK
+ andc r3, r3, r5
+ mtspr HID0, r3 /* no invalidate, unlock */
+ ori r3, r3, HID0_DCE
+ ori r5, r3, HID0_DCFI
+ mtspr HID0, r5 /* enable + invalidate */
+ mtspr HID0, r3 /* enable */
+ sync
+#ifdef CONFIG_SYS_L2
+ sync
+ lis r3, L2_ENABLE@h
+ ori r3, r3, L2_ENABLE@l
+ mtspr l2cr, r3
+ isync
+ sync
+#endif
+
+ /* enable and invalidate the instruction cache*/
+ mfspr r3, HID0
+ li r5, HID0_ICFI|HID0_ILOCK
+ andc r3, r3, r5
+ ori r3, r3, HID0_ICE
+ ori r5, r3, HID0_ICFI
+ mtspr HID0, r5
+ mtspr HID0, r3
+ isync
+ sync
+
+ /* TBEN in HID0 */
+ mfspr r4, HID0
+ oris r4, r4, 0x0400
+ mtspr HID0, r4
+ sync
+ isync
+
+ /* MCP|SYNCBE|ABE in HID1 */
+ mfspr r4, HID1
+ oris r4, r4, 0x8000
+ ori r4, r4, 0x0C00
+ mtspr HID1, r4
+ sync
+ isync
+
+ lis r3, CONFIG_LINUX_RESET_VEC@h
+ ori r3, r3, CONFIG_LINUX_RESET_VEC@l
+ mtlr r3
+ blr
+
+ /* Never Returns, Running in Linux Now */
diff --git a/arch/ppc/cpu/mpc86xx/speed.c b/arch/ppc/cpu/mpc86xx/speed.c
new file mode 100644
index 0000000..64a3479
--- /dev/null
+++ b/arch/ppc/cpu/mpc86xx/speed.c
@@ -0,0 +1,163 @@
+/*
+ * Copyright 2004 Freescale Semiconductor.
+ * Jeff Brown
+ * Srikanth Srinivasan (srikanth.srinivasan@freescale.com)
+ *
+ * (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
+ */
+
+#include <common.h>
+#include <mpc86xx.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* used in some defintiions of CONFIG_SYS_CLK_FREQ */
+extern unsigned long get_board_sys_clk(unsigned long dummy);
+
+void get_sys_info(sys_info_t *sysInfo)
+{
+ volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
+ volatile ccsr_gur_t *gur = &immap->im_gur;
+ uint plat_ratio, e600_ratio;
+ uint lcrr_div;
+
+ plat_ratio = (gur->porpllsr) & 0x0000003e;
+ plat_ratio >>= 1;
+
+ switch (plat_ratio) {
+ case 0x0:
+ sysInfo->freqSystemBus = 16 * CONFIG_SYS_CLK_FREQ;
+ break;
+ case 0x02:
+ case 0x03:
+ case 0x04:
+ case 0x05:
+ case 0x06:
+ case 0x08:
+ case 0x09:
+ case 0x0a:
+ case 0x0c:
+ case 0x10:
+ sysInfo->freqSystemBus = plat_ratio * CONFIG_SYS_CLK_FREQ;
+ break;
+ default:
+ sysInfo->freqSystemBus = 0;
+ break;
+ }
+
+ e600_ratio = (gur->porpllsr) & 0x003f0000;
+ e600_ratio >>= 16;
+
+ switch (e600_ratio) {
+ case 0x10:
+ sysInfo->freqProcessor = 2 * sysInfo->freqSystemBus;
+ break;
+ case 0x19:
+ sysInfo->freqProcessor = 5 * sysInfo->freqSystemBus / 2;
+ break;
+ case 0x20:
+ sysInfo->freqProcessor = 3 * sysInfo->freqSystemBus;
+ break;
+ case 0x39:
+ sysInfo->freqProcessor = 7 * sysInfo->freqSystemBus / 2;
+ break;
+ case 0x28:
+ sysInfo->freqProcessor = 4 * sysInfo->freqSystemBus;
+ break;
+ case 0x1d:
+ sysInfo->freqProcessor = 9 * sysInfo->freqSystemBus / 2;
+ break;
+ default:
+ sysInfo->freqProcessor = e600_ratio + sysInfo->freqSystemBus;
+ break;
+ }
+
+#if defined(CONFIG_SYS_LBC_LCRR)
+ /* We will program LCRR to this value later */
+ lcrr_div = CONFIG_SYS_LBC_LCRR & LCRR_CLKDIV;
+#else
+ {
+ volatile ccsr_lbc_t *lbc = &immap->im_lbc;
+ lcrr_div = in_be32(&lbc->lcrr) & LCRR_CLKDIV;
+ }
+#endif
+ if (lcrr_div == 2 || lcrr_div == 4 || lcrr_div == 8) {
+ sysInfo->freqLocalBus = sysInfo->freqSystemBus / (lcrr_div * 2);
+ } else {
+ /* In case anyone cares what the unknown value is */
+ sysInfo->freqLocalBus = lcrr_div;
+ }
+}
+
+
+/*
+ * Measure CPU clock speed (core clock GCLK1, GCLK2)
+ * (Approx. GCLK frequency in Hz)
+ */
+
+int get_clocks(void)
+{
+ sys_info_t sys_info;
+
+ get_sys_info(&sys_info);
+ gd->cpu_clk = sys_info.freqProcessor;
+ gd->bus_clk = sys_info.freqSystemBus;
+ gd->lbc_clk = sys_info.freqLocalBus;
+
+ /*
+ * The base clock for I2C depends on the actual SOC. Unfortunately,
+ * there is no pattern that can be used to determine the frequency, so
+ * the only choice is to look up the actual SOC number and use the value
+ * for that SOC. This information is taken from application note
+ * AN2919.
+ */
+#ifdef CONFIG_MPC8610
+ gd->i2c1_clk = sys_info.freqSystemBus;
+#else
+ gd->i2c1_clk = sys_info.freqSystemBus / 2;
+#endif
+ gd->i2c2_clk = gd->i2c1_clk;
+
+ if (gd->cpu_clk != 0)
+ return 0;
+ else
+ return 1;
+}
+
+
+/*
+ * get_bus_freq
+ * Return system bus freq in Hz
+ */
+
+ulong get_bus_freq(ulong dummy)
+{
+ ulong val;
+ sys_info_t sys_info;
+
+ get_sys_info(&sys_info);
+ val = sys_info.freqSystemBus;
+
+ return val;
+}
diff --git a/arch/ppc/cpu/mpc86xx/start.S b/arch/ppc/cpu/mpc86xx/start.S
new file mode 100644
index 0000000..ed1e4ca
--- /dev/null
+++ b/arch/ppc/cpu/mpc86xx/start.S
@@ -0,0 +1,957 @@
+/*
+ * Copyright 2004, 2007 Freescale Semiconductor.
+ * Srikanth Srinivasan <srikanth.srinivaan@freescale.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
+ */
+
+/* U-Boot - Startup Code for 86xx PowerPC based Embedded Boards
+ *
+ *
+ * The processor starts at 0xfff00100 and the code is executed
+ * from flash. The code is organized to be at an other address
+ * in memory, but as long we don't jump around before relocating.
+ * board_init lies at a quite high address and when the cpu has
+ * jumped there, everything is ok.
+ */
+#include <config.h>
+#include <mpc86xx.h>
+#include <timestamp.h>
+#include <version.h>
+
+#include <ppc_asm.tmpl>
+#include <ppc_defs.h>
+
+#include <asm/cache.h>
+#include <asm/mmu.h>
+
+#ifndef CONFIG_IDENT_STRING
+#define CONFIG_IDENT_STRING ""
+#endif
+
+/*
+ * Need MSR_DR | MSR_IR enabled to access I/O (printf) in exceptions
+ */
+
+/*
+ * Set up GOT: Global Offset Table
+ *
+ * Use r12 to access the GOT
+ */
+ START_GOT
+ GOT_ENTRY(_GOT2_TABLE_)
+ GOT_ENTRY(_FIXUP_TABLE_)
+
+ GOT_ENTRY(_start)
+ GOT_ENTRY(_start_of_vectors)
+ GOT_ENTRY(_end_of_vectors)
+ GOT_ENTRY(transfer_to_handler)
+
+ GOT_ENTRY(__init_end)
+ GOT_ENTRY(_end)
+ GOT_ENTRY(__bss_start)
+ END_GOT
+
+/*
+ * r3 - 1st arg to board_init(): IMMP pointer
+ * r4 - 2nd arg to board_init(): boot flag
+ */
+ .text
+ .long 0x27051956 /* U-Boot Magic Number */
+ .globl version_string
+version_string:
+ .ascii U_BOOT_VERSION
+ .ascii " (", U_BOOT_DATE, " - ", U_BOOT_TIME, ")"
+ .ascii CONFIG_IDENT_STRING, "\0"
+
+ . = EXC_OFF_SYS_RESET
+ .globl _start
+_start:
+ li r21, BOOTFLAG_COLD /* Normal Power-On: Boot from FLASH */
+ b boot_cold
+ sync
+
+ . = EXC_OFF_SYS_RESET + 0x10
+
+ .globl _start_warm
+_start_warm:
+ li r21, BOOTFLAG_WARM /* Software reboot */
+ b boot_warm
+ sync
+
+ /* the boot code is located below the exception table */
+
+ .globl _start_of_vectors
+_start_of_vectors:
+
+/* Machine check */
+ STD_EXCEPTION(0x200, MachineCheck, MachineCheckException)
+
+/* Data Storage exception. */
+ STD_EXCEPTION(0x300, DataStorage, UnknownException)
+
+/* Instruction Storage exception. */
+ STD_EXCEPTION(0x400, InstStorage, UnknownException)
+
+/* External Interrupt exception. */
+ STD_EXCEPTION(0x500, ExtInterrupt, external_interrupt)
+
+/* Alignment exception. */
+ . = 0x600
+Alignment:
+ EXCEPTION_PROLOG(SRR0, SRR1)
+ mfspr r4,DAR
+ stw r4,_DAR(r21)
+ mfspr r5,DSISR
+ stw r5,_DSISR(r21)
+ addi r3,r1,STACK_FRAME_OVERHEAD
+ EXC_XFER_TEMPLATE(Alignment, AlignmentException, MSR_KERNEL, COPY_EE)
+
+/* Program check exception */
+ . = 0x700
+ProgramCheck:
+ EXCEPTION_PROLOG(SRR0, SRR1)
+ addi r3,r1,STACK_FRAME_OVERHEAD
+ EXC_XFER_TEMPLATE(ProgramCheck, ProgramCheckException,
+ MSR_KERNEL, COPY_EE)
+
+ STD_EXCEPTION(0x800, FPUnavailable, UnknownException)
+
+ /* I guess we could implement decrementer, and may have
+ * to someday for timekeeping.
+ */
+ STD_EXCEPTION(0x900, Decrementer, timer_interrupt)
+ STD_EXCEPTION(0xa00, Trap_0a, UnknownException)
+ STD_EXCEPTION(0xb00, Trap_0b, UnknownException)
+ STD_EXCEPTION(0xc00, SystemCall, UnknownException)
+ STD_EXCEPTION(0xd00, SingleStep, UnknownException)
+ STD_EXCEPTION(0xe00, Trap_0e, UnknownException)
+ STD_EXCEPTION(0xf00, Trap_0f, UnknownException)
+ STD_EXCEPTION(0x1000, SoftEmu, SoftEmuException)
+ STD_EXCEPTION(0x1100, InstructionTLBMiss, UnknownException)
+ STD_EXCEPTION(0x1200, DataTLBMiss, UnknownException)
+ STD_EXCEPTION(0x1300, InstructionTLBError, UnknownException)
+ STD_EXCEPTION(0x1400, DataTLBError, UnknownException)
+ STD_EXCEPTION(0x1500, Reserved5, UnknownException)
+ STD_EXCEPTION(0x1600, Reserved6, UnknownException)
+ STD_EXCEPTION(0x1700, Reserved7, UnknownException)
+ STD_EXCEPTION(0x1800, Reserved8, UnknownException)
+ STD_EXCEPTION(0x1900, Reserved9, UnknownException)
+ STD_EXCEPTION(0x1a00, ReservedA, UnknownException)
+ STD_EXCEPTION(0x1b00, ReservedB, UnknownException)
+ STD_EXCEPTION(0x1c00, DataBreakpoint, UnknownException)
+ STD_EXCEPTION(0x1d00, InstructionBreakpoint, UnknownException)
+ STD_EXCEPTION(0x1e00, PeripheralBreakpoint, UnknownException)
+ STD_EXCEPTION(0x1f00, DevPortBreakpoint, UnknownException)
+
+ .globl _end_of_vectors
+_end_of_vectors:
+
+ . = 0x2000
+
+boot_cold:
+boot_warm:
+ /*
+ * NOTE: Only Cpu 0 will ever come here. Other cores go to an
+ * address specified by the BPTR
+ */
+1:
+#ifdef CONFIG_SYS_RAMBOOT
+ /* disable everything */
+ li r0, 0
+ mtspr HID0, r0
+ sync
+ mtmsr 0
+#endif
+
+ /* Invalidate BATs */
+ bl invalidate_bats
+ sync
+ /* Invalidate all of TLB before MMU turn on */
+ bl clear_tlbs
+ sync
+
+#ifdef CONFIG_SYS_L2
+ /* init the L2 cache */
+ lis r3, L2_INIT@h
+ ori r3, r3, L2_INIT@l
+ mtspr l2cr, r3
+ /* invalidate the L2 cache */
+ bl l2cache_invalidate
+ sync
+#endif
+
+ /*
+ * Calculate absolute address in FLASH and jump there
+ *------------------------------------------------------*/
+ lis r3, CONFIG_SYS_MONITOR_BASE_EARLY@h
+ ori r3, r3, CONFIG_SYS_MONITOR_BASE_EARLY@l
+ addi r3, r3, in_flash - _start + EXC_OFF_SYS_RESET
+ mtlr r3
+ blr
+
+in_flash:
+ /* let the C-code set up the rest */
+ /* */
+ /* Be careful to keep code relocatable ! */
+ /*------------------------------------------------------*/
+ /* perform low-level init */
+
+ /* enable extended addressing */
+ bl enable_ext_addr
+
+ /* setup the bats */
+ bl early_bats
+
+ /*
+ * Cache must be enabled here for stack-in-cache trick.
+ * This means we need to enable the BATS.
+ * Cache should be turned on after BATs, since by default
+ * everything is write-through.
+ */
+
+ /* enable address translation */
+ mfmsr r5
+ ori r5, r5, (MSR_IR | MSR_DR)
+ lis r3,addr_trans_enabled@h
+ ori r3, r3, addr_trans_enabled@l
+ mtspr SPRN_SRR0,r3
+ mtspr SPRN_SRR1,r5
+ rfi
+
+addr_trans_enabled:
+ /* enable and invalidate the data cache */
+/* bl l1dcache_enable */
+ bl dcache_enable
+ sync
+
+#if 1
+ bl icache_enable
+#endif
+
+#ifdef CONFIG_SYS_INIT_RAM_LOCK
+ bl lock_ram_in_cache
+ sync
+#endif
+
+#if (CONFIG_SYS_CCSRBAR_DEFAULT != CONFIG_SYS_CCSRBAR)
+ bl setup_ccsrbar
+#endif
+
+ /* set up the stack pointer in our newly created
+ * cache-ram (r1) */
+ lis r1, (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET)@h
+ ori r1, r1, (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET)@l
+
+ li r0, 0 /* Make room for stack frame header and */
+ stwu r0, -4(r1) /* clear final stack frame so that */
+ stwu r0, -4(r1) /* stack backtraces terminate cleanly */
+
+ GET_GOT /* initialize GOT access */
+
+ /* run low-level CPU init code (from Flash) */
+ bl cpu_init_f
+ sync
+
+#ifdef RUN_DIAG
+
+ /* Load PX_AUX register address in r4 */
+ lis r4, PIXIS_BASE@h
+ ori r4, r4, 0x6
+ /* Load contents of PX_AUX in r3 bits 24 to 31*/
+ lbz r3, 0(r4)
+
+ /* Mask and obtain the bit in r3 */
+ rlwinm. r3, r3, 0, 24, 24
+ /* If not zero, jump and continue with u-boot */
+ bne diag_done
+
+ /* Load back contents of PX_AUX in r3 bits 24 to 31 */
+ lbz r3, 0(r4)
+ /* Set the MSB of the register value */
+ ori r3, r3, 0x80
+ /* Write value in r3 back to PX_AUX */
+ stb r3, 0(r4)
+
+ /* Get the address to jump to in r3*/
+ lis r3, CONFIG_SYS_DIAG_ADDR@h
+ ori r3, r3, CONFIG_SYS_DIAG_ADDR@l
+
+ /* Load the LR with the branch address */
+ mtlr r3
+
+ /* Branch to diagnostic */
+ blr
+
+diag_done:
+#endif
+
+/* bl l2cache_enable */
+ mr r3, r21
+
+ /* r3: BOOTFLAG */
+ /* run 1st part of board init code (from Flash) */
+ bl board_init_f
+ sync
+
+ /* NOTREACHED */
+
+ .globl invalidate_bats
+invalidate_bats:
+
+ li r0, 0
+ /* invalidate BATs */
+ mtspr IBAT0U, r0
+ mtspr IBAT1U, r0
+ mtspr IBAT2U, r0
+ mtspr IBAT3U, r0
+ mtspr IBAT4U, r0
+ mtspr IBAT5U, r0
+ mtspr IBAT6U, r0
+ mtspr IBAT7U, r0
+
+ isync
+ mtspr DBAT0U, r0
+ mtspr DBAT1U, r0
+ mtspr DBAT2U, r0
+ mtspr DBAT3U, r0
+ mtspr DBAT4U, r0
+ mtspr DBAT5U, r0
+ mtspr DBAT6U, r0
+ mtspr DBAT7U, r0
+
+ isync
+ sync
+ blr
+
+/*
+ * early_bats:
+ *
+ * Set up bats needed early on - this is usually the BAT for the
+ * stack-in-cache, the Flash, and CCSR space
+ */
+ .globl early_bats
+early_bats:
+ /* IBAT 3 */
+ lis r4, CONFIG_SYS_IBAT3L@h
+ ori r4, r4, CONFIG_SYS_IBAT3L@l
+ lis r3, CONFIG_SYS_IBAT3U@h
+ ori r3, r3, CONFIG_SYS_IBAT3U@l
+ mtspr IBAT3L, r4
+ mtspr IBAT3U, r3
+ isync
+
+ /* DBAT 3 */
+ lis r4, CONFIG_SYS_DBAT3L@h
+ ori r4, r4, CONFIG_SYS_DBAT3L@l
+ lis r3, CONFIG_SYS_DBAT3U@h
+ ori r3, r3, CONFIG_SYS_DBAT3U@l
+ mtspr DBAT3L, r4
+ mtspr DBAT3U, r3
+ isync
+
+ /* IBAT 5 */
+ lis r4, CONFIG_SYS_IBAT5L@h
+ ori r4, r4, CONFIG_SYS_IBAT5L@l
+ lis r3, CONFIG_SYS_IBAT5U@h
+ ori r3, r3, CONFIG_SYS_IBAT5U@l
+ mtspr IBAT5L, r4
+ mtspr IBAT5U, r3
+ isync
+
+ /* DBAT 5 */
+ lis r4, CONFIG_SYS_DBAT5L@h
+ ori r4, r4, CONFIG_SYS_DBAT5L@l
+ lis r3, CONFIG_SYS_DBAT5U@h
+ ori r3, r3, CONFIG_SYS_DBAT5U@l
+ mtspr DBAT5L, r4
+ mtspr DBAT5U, r3
+ isync
+
+ /* IBAT 6 */
+ lis r4, CONFIG_SYS_IBAT6L_EARLY@h
+ ori r4, r4, CONFIG_SYS_IBAT6L_EARLY@l
+ lis r3, CONFIG_SYS_IBAT6U_EARLY@h
+ ori r3, r3, CONFIG_SYS_IBAT6U_EARLY@l
+ mtspr IBAT6L, r4
+ mtspr IBAT6U, r3
+ isync
+
+ /* DBAT 6 */
+ lis r4, CONFIG_SYS_DBAT6L_EARLY@h
+ ori r4, r4, CONFIG_SYS_DBAT6L_EARLY@l
+ lis r3, CONFIG_SYS_DBAT6U_EARLY@h
+ ori r3, r3, CONFIG_SYS_DBAT6U_EARLY@l
+ mtspr DBAT6L, r4
+ mtspr DBAT6U, r3
+ isync
+
+#if(CONFIG_SYS_CCSRBAR_DEFAULT != CONFIG_SYS_CCSRBAR)
+ /* IBAT 7 */
+ lis r4, CONFIG_SYS_CCSR_DEFAULT_IBATL@h
+ ori r4, r4, CONFIG_SYS_CCSR_DEFAULT_IBATL@l
+ lis r3, CONFIG_SYS_CCSR_DEFAULT_IBATU@h
+ ori r3, r3, CONFIG_SYS_CCSR_DEFAULT_IBATU@l
+ mtspr IBAT7L, r4
+ mtspr IBAT7U, r3
+ isync
+
+ /* DBAT 7 */
+ lis r4, CONFIG_SYS_CCSR_DEFAULT_DBATL@h
+ ori r4, r4, CONFIG_SYS_CCSR_DEFAULT_DBATL@l
+ lis r3, CONFIG_SYS_CCSR_DEFAULT_DBATU@h
+ ori r3, r3, CONFIG_SYS_CCSR_DEFAULT_DBATU@l
+ mtspr DBAT7L, r4
+ mtspr DBAT7U, r3
+ isync
+#endif
+ blr
+
+ .globl clear_tlbs
+clear_tlbs:
+ addis r3, 0, 0x0000
+ addis r5, 0, 0x4
+ isync
+tlblp:
+ tlbie r3
+ sync
+ addi r3, r3, 0x1000
+ cmp 0, 0, r3, r5
+ blt tlblp
+ blr
+
+ .globl disable_addr_trans
+disable_addr_trans:
+ /* disable address translation */
+ mflr r4
+ mfmsr r3
+ andi. r0, r3, (MSR_IR | MSR_DR)
+ beqlr
+ andc r3, r3, r0
+ mtspr SRR0, r4
+ mtspr SRR1, r3
+ rfi
+
+/*
+ * This code finishes saving the registers to the exception frame
+ * and jumps to the appropriate handler for the exception.
+ * Register r21 is pointer into trap frame, r1 has new stack pointer.
+ */
+ .globl transfer_to_handler
+transfer_to_handler:
+ stw r22,_NIP(r21)
+ lis r22,MSR_POW@h
+ andc r23,r23,r22
+ stw r23,_MSR(r21)
+ SAVE_GPR(7, r21)
+ SAVE_4GPRS(8, r21)
+ SAVE_8GPRS(12, r21)
+ SAVE_8GPRS(24, r21)
+ mflr r23
+ andi. r24,r23,0x3f00 /* get vector offset */
+ stw r24,TRAP(r21)
+ li r22,0
+ stw r22,RESULT(r21)
+ mtspr SPRG2,r22 /* r1 is now kernel sp */
+ lwz r24,0(r23) /* virtual address of handler */
+ lwz r23,4(r23) /* where to go when done */
+ mtspr SRR0,r24
+ mtspr SRR1,r20
+ mtlr r23
+ SYNC
+ rfi /* jump to handler, enable MMU */
+
+int_return:
+ mfmsr r28 /* Disable interrupts */
+ li r4,0
+ ori r4,r4,MSR_EE
+ andc r28,r28,r4
+ SYNC /* Some chip revs need this... */
+ mtmsr r28
+ SYNC
+ lwz r2,_CTR(r1)
+ lwz r0,_LINK(r1)
+ mtctr r2
+ mtlr r0
+ lwz r2,_XER(r1)
+ lwz r0,_CCR(r1)
+ mtspr XER,r2
+ mtcrf 0xFF,r0
+ REST_10GPRS(3, r1)
+ REST_10GPRS(13, r1)
+ REST_8GPRS(23, r1)
+ REST_GPR(31, r1)
+ lwz r2,_NIP(r1) /* Restore environment */
+ lwz r0,_MSR(r1)
+ mtspr SRR0,r2
+ mtspr SRR1,r0
+ lwz r0,GPR0(r1)
+ lwz r2,GPR2(r1)
+ lwz r1,GPR1(r1)
+ SYNC
+ rfi
+
+ .globl dc_read
+dc_read:
+ blr
+
+ .globl get_pvr
+get_pvr:
+ mfspr r3, PVR
+ blr
+
+ .globl get_svr
+get_svr:
+ mfspr r3, SVR
+ blr
+
+
+/*
+ * Function: in8
+ * Description: Input 8 bits
+ */
+ .globl in8
+in8:
+ lbz r3,0x0000(r3)
+ blr
+
+/*
+ * Function: out8
+ * Description: Output 8 bits
+ */
+ .globl out8
+out8:
+ stb r4,0x0000(r3)
+ blr
+
+/*
+ * Function: out16
+ * Description: Output 16 bits
+ */
+ .globl out16
+out16:
+ sth r4,0x0000(r3)
+ blr
+
+/*
+ * Function: out16r
+ * Description: Byte reverse and output 16 bits
+ */
+ .globl out16r
+out16r:
+ sthbrx r4,r0,r3
+ blr
+
+/*
+ * Function: out32
+ * Description: Output 32 bits
+ */
+ .globl out32
+out32:
+ stw r4,0x0000(r3)
+ blr
+
+/*
+ * Function: out32r
+ * Description: Byte reverse and output 32 bits
+ */
+ .globl out32r
+out32r:
+ stwbrx r4,r0,r3
+ blr
+
+/*
+ * Function: in16
+ * Description: Input 16 bits
+ */
+ .globl in16
+in16:
+ lhz r3,0x0000(r3)
+ blr
+
+/*
+ * Function: in16r
+ * Description: Input 16 bits and byte reverse
+ */
+ .globl in16r
+in16r:
+ lhbrx r3,r0,r3
+ blr
+
+/*
+ * Function: in32
+ * Description: Input 32 bits
+ */
+ .globl in32
+in32:
+ lwz 3,0x0000(3)
+ blr
+
+/*
+ * Function: in32r
+ * Description: Input 32 bits and byte reverse
+ */
+ .globl in32r
+in32r:
+ lwbrx r3,r0,r3
+ blr
+
+/*
+ * void relocate_code (addr_sp, gd, addr_moni)
+ *
+ * This "function" does not return, instead it continues in RAM
+ * after relocating the monitor code.
+ *
+ * r3 = dest
+ * r4 = src
+ * r5 = length in bytes
+ * r6 = cachelinesize
+ */
+ .globl relocate_code
+relocate_code:
+
+ mr r1, r3 /* Set new stack pointer */
+ mr r9, r4 /* Save copy of Global Data pointer */
+ mr r10, r5 /* Save copy of Destination Address */
+
+ GET_GOT
+ mr r3, r5 /* Destination Address */
+ lis r4, CONFIG_SYS_MONITOR_BASE@h /* Source Address */
+ ori r4, r4, CONFIG_SYS_MONITOR_BASE@l
+ lwz r5, GOT(__init_end)
+ sub r5, r5, r4
+ li r6, CONFIG_SYS_CACHELINE_SIZE /* Cache Line Size */
+
+ /*
+ * Fix GOT pointer:
+ *
+ * New GOT-PTR = (old GOT-PTR - CONFIG_SYS_MONITOR_BASE) + Destination Address
+ *
+ * Offset:
+ */
+ sub r15, r10, r4
+
+ /* First our own GOT */
+ add r12, r12, r15
+ /* then the one used by the C code */
+ add r30, r30, r15
+
+ /*
+ * Now relocate code
+ */
+ cmplw cr1,r3,r4
+ addi r0,r5,3
+ srwi. r0,r0,2
+ beq cr1,4f /* In place copy is not necessary */
+ beq 7f /* Protect against 0 count */
+ mtctr r0
+ bge cr1,2f
+
+ la r8,-4(r4)
+ la r7,-4(r3)
+1: lwzu r0,4(r8)
+ stwu r0,4(r7)
+ bdnz 1b
+ b 4f
+
+2: slwi r0,r0,2
+ add r8,r4,r0
+ add r7,r3,r0
+3: lwzu r0,-4(r8)
+ stwu r0,-4(r7)
+ bdnz 3b
+/*
+ * Now flush the cache: note that we must start from a cache aligned
+ * address. Otherwise we might miss one cache line.
+ */
+4: cmpwi r6,0
+ add r5,r3,r5
+ beq 7f /* Always flush prefetch queue in any case */
+ subi r0,r6,1
+ andc r3,r3,r0
+ mr r4,r3
+5: dcbst 0,r4
+ add r4,r4,r6
+ cmplw r4,r5
+ blt 5b
+ sync /* Wait for all dcbst to complete on bus */
+ mr r4,r3
+6: icbi 0,r4
+ add r4,r4,r6
+ cmplw r4,r5
+ blt 6b
+7: sync /* Wait for all icbi to complete on bus */
+ isync
+
+/*
+ * We are done. Do not return, instead branch to second part of board
+ * initialization, now running from RAM.
+ */
+ addi r0, r10, in_ram - _start + EXC_OFF_SYS_RESET
+ mtlr r0
+ blr
+
+in_ram:
+ /*
+ * Relocation Function, r12 point to got2+0x8000
+ *
+ * Adjust got2 pointers, no need to check for 0, this code
+ * already puts a few entries in the table.
+ */
+ li r0,__got2_entries@sectoff@l
+ la r3,GOT(_GOT2_TABLE_)
+ lwz r11,GOT(_GOT2_TABLE_)
+ mtctr r0
+ sub r11,r3,r11
+ addi r3,r3,-4
+1: lwzu r0,4(r3)
+ cmpwi r0,0
+ beq- 2f
+ add r0,r0,r11
+ stw r0,0(r3)
+2: bdnz 1b
+
+ /*
+ * Now adjust the fixups and the pointers to the fixups
+ * in case we need to move ourselves again.
+ */
+ li r0,__fixup_entries@sectoff@l
+ lwz r3,GOT(_FIXUP_TABLE_)
+ cmpwi r0,0
+ mtctr r0
+ addi r3,r3,-4
+ beq 4f
+3: lwzu r4,4(r3)
+ lwzux r0,r4,r11
+ add r0,r0,r11
+ stw r10,0(r3)
+ stw r0,0(r4)
+ bdnz 3b
+4:
+/* clear_bss: */
+ /*
+ * Now clear BSS segment
+ */
+ lwz r3,GOT(__bss_start)
+ lwz r4,GOT(_end)
+
+ cmplw 0, r3, r4
+ beq 6f
+
+ li r0, 0
+5:
+ stw r0, 0(r3)
+ addi r3, r3, 4
+ cmplw 0, r3, r4
+ bne 5b
+6:
+ mr r3, r9 /* Init Date pointer */
+ mr r4, r10 /* Destination Address */
+ bl board_init_r
+
+ /* not reached - end relocate_code */
+/*-----------------------------------------------------------------------*/
+
+ /*
+ * Copy exception vector code to low memory
+ *
+ * r3: dest_addr
+ * r7: source address, r8: end address, r9: target address
+ */
+ .globl trap_init
+trap_init:
+ mflr r4 /* save link register */
+ GET_GOT
+ lwz r7, GOT(_start)
+ lwz r8, GOT(_end_of_vectors)
+
+ li r9, 0x100 /* reset vector always at 0x100 */
+
+ cmplw 0, r7, r8
+ bgelr /* return if r7>=r8 - just in case */
+1:
+ lwz r0, 0(r7)
+ stw r0, 0(r9)
+ addi r7, r7, 4
+ addi r9, r9, 4
+ cmplw 0, r7, r8
+ bne 1b
+
+ /*
+ * relocate `hdlr' and `int_return' entries
+ */
+ li r7, .L_MachineCheck - _start + EXC_OFF_SYS_RESET
+ li r8, Alignment - _start + EXC_OFF_SYS_RESET
+2:
+ bl trap_reloc
+ addi r7, r7, 0x100 /* next exception vector */
+ cmplw 0, r7, r8
+ blt 2b
+
+ li r7, .L_Alignment - _start + EXC_OFF_SYS_RESET
+ bl trap_reloc
+
+ li r7, .L_ProgramCheck - _start + EXC_OFF_SYS_RESET
+ bl trap_reloc
+
+ li r7, .L_FPUnavailable - _start + EXC_OFF_SYS_RESET
+ li r8, SystemCall - _start + EXC_OFF_SYS_RESET
+3:
+ bl trap_reloc
+ addi r7, r7, 0x100 /* next exception vector */
+ cmplw 0, r7, r8
+ blt 3b
+
+ li r7, .L_SingleStep - _start + EXC_OFF_SYS_RESET
+ li r8, _end_of_vectors - _start + EXC_OFF_SYS_RESET
+4:
+ bl trap_reloc
+ addi r7, r7, 0x100 /* next exception vector */
+ cmplw 0, r7, r8
+ blt 4b
+
+ /* enable execptions from RAM vectors */
+ mfmsr r7
+ li r8,MSR_IP
+ andc r7,r7,r8
+ ori r7,r7,MSR_ME /* Enable Machine Check */
+ mtmsr r7
+
+ mtlr r4 /* restore link register */
+ blr
+
+.globl enable_ext_addr
+enable_ext_addr:
+ mfspr r0, HID0
+ lis r0, (HID0_HIGH_BAT_EN | HID0_XBSEN | HID0_XAEN)@h
+ ori r0, r0, (HID0_HIGH_BAT_EN | HID0_XBSEN | HID0_XAEN)@l
+ mtspr HID0, r0
+ sync
+ isync
+ blr
+
+#if (CONFIG_SYS_CCSRBAR_DEFAULT != CONFIG_SYS_CCSRBAR)
+.globl setup_ccsrbar
+setup_ccsrbar:
+ /* Special sequence needed to update CCSRBAR itself */
+ lis r4, CONFIG_SYS_CCSRBAR_DEFAULT@h
+ ori r4, r4, CONFIG_SYS_CCSRBAR_DEFAULT@l
+
+ lis r5, CONFIG_SYS_CCSRBAR_PHYS_LOW@h
+ ori r5, r5, CONFIG_SYS_CCSRBAR_PHYS_LOW@l
+ srwi r5,r5,12
+ li r6, CONFIG_SYS_CCSRBAR_PHYS_HIGH@l
+ rlwimi r5,r6,20,8,11
+ stw r5, 0(r4) /* Store physical value of CCSR */
+ isync
+
+ lis r5, TEXT_BASE@h
+ ori r5,r5,TEXT_BASE@l
+ lwz r5, 0(r5)
+ isync
+
+ /* Use VA of CCSR to do read */
+ lis r3, CONFIG_SYS_CCSRBAR@h
+ lwz r5, CONFIG_SYS_CCSRBAR@l(r3)
+ isync
+
+ blr
+#endif
+
+#ifdef CONFIG_SYS_INIT_RAM_LOCK
+lock_ram_in_cache:
+ /* Allocate Initial RAM in data cache.
+ */
+ lis r3, (CONFIG_SYS_INIT_RAM_ADDR & ~31)@h
+ ori r3, r3, (CONFIG_SYS_INIT_RAM_ADDR & ~31)@l
+ li r4, ((CONFIG_SYS_INIT_RAM_END & ~31) + \
+ (CONFIG_SYS_INIT_RAM_ADDR & 31) + 31) / 32
+ mtctr r4
+1:
+ dcbz r0, r3
+ addi r3, r3, 32
+ bdnz 1b
+#if 1
+/* Lock the data cache */
+ mfspr r0, HID0
+ ori r0, r0, 0x1000
+ sync
+ mtspr HID0, r0
+ sync
+ blr
+#endif
+#if 0
+ /* Lock the first way of the data cache */
+ mfspr r0, LDSTCR
+ ori r0, r0, 0x0080
+#if defined(CONFIG_ALTIVEC)
+ dssall
+#endif
+ sync
+ mtspr LDSTCR, r0
+ sync
+ isync
+ blr
+#endif
+
+.globl unlock_ram_in_cache
+unlock_ram_in_cache:
+ /* invalidate the INIT_RAM section */
+ lis r3, (CONFIG_SYS_INIT_RAM_ADDR & ~31)@h
+ ori r3, r3, (CONFIG_SYS_INIT_RAM_ADDR & ~31)@l
+ li r4, ((CONFIG_SYS_INIT_RAM_END & ~31) + \
+ (CONFIG_SYS_INIT_RAM_ADDR & 31) + 31) / 32
+ mtctr r4
+1: icbi r0, r3
+ addi r3, r3, 32
+ bdnz 1b
+ sync /* Wait for all icbi to complete on bus */
+ isync
+#if 1
+/* Unlock the data cache and invalidate it */
+ mfspr r0, HID0
+ li r3,0x1000
+ andc r0,r0,r3
+ li r3,0x0400
+ or r0,r0,r3
+ sync
+ mtspr HID0, r0
+ sync
+ blr
+#endif
+#if 0
+ /* Unlock the first way of the data cache */
+ mfspr r0, LDSTCR
+ li r3,0x0080
+ andc r0,r0,r3
+#ifdef CONFIG_ALTIVEC
+ dssall
+#endif
+ sync
+ mtspr LDSTCR, r0
+ sync
+ isync
+ li r3,0x0400
+ or r0,r0,r3
+ sync
+ mtspr HID0, r0
+ sync
+ blr
+#endif
+#endif
diff --git a/arch/ppc/cpu/mpc86xx/traps.c b/arch/ppc/cpu/mpc86xx/traps.c
new file mode 100644
index 0000000..406403e
--- /dev/null
+++ b/arch/ppc/cpu/mpc86xx/traps.c
@@ -0,0 +1,233 @@
+/*
+ * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
+ *
+ * Modified by Cort Dougan (cort@cs.nmt.edu)
+ * and Paul Mackerras (paulus@cs.anu.edu.au)
+ *
+ * (C) Copyright 2000
+ * 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
+ */
+
+/*
+ * This file handles the architecture-dependent parts of hardware exceptions
+ */
+
+#include <common.h>
+#include <command.h>
+#include <kgdb.h>
+#include <asm/processor.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* Returns 0 if exception not found and fixup otherwise. */
+extern unsigned long search_exception_table(unsigned long);
+
+/*
+ * End of addressable memory. This may be less than the actual
+ * amount of memory on the system if we're unable to keep all
+ * the memory mapped in.
+ */
+extern ulong get_effective_memsize(void);
+#define END_OF_MEM (gd->bd->bi_memstart + get_effective_memsize())
+
+/*
+ * Trap & Exception support
+ */
+
+void
+print_backtrace(unsigned long *sp)
+{
+ int cnt = 0;
+ unsigned long i;
+
+ printf("Call backtrace: ");
+ while (sp) {
+ if ((uint) sp > END_OF_MEM)
+ break;
+
+ i = sp[1];
+ if (cnt++ % 7 == 0)
+ printf("\n");
+ printf("%08lX ", i);
+ if (cnt > 32)
+ break;
+ sp = (unsigned long *)*sp;
+ }
+ printf("\n");
+}
+
+void
+show_regs(struct pt_regs *regs)
+{
+ int i;
+
+ printf("NIP: %08lX XER: %08lX LR: %08lX REGS:"
+ " %p TRAP: %04lx DAR: %08lX\n",
+ regs->nip, regs->xer, regs->link, regs, regs->trap, regs->dar);
+ printf("MSR: %08lx EE: %01x PR: %01x FP:"
+ " %01x ME: %01x IR/DR: %01x%01x\n",
+ regs->msr, regs->msr & MSR_EE ? 1 : 0,
+ regs->msr & MSR_PR ? 1 : 0, regs->msr & MSR_FP ? 1 : 0,
+ regs->msr & MSR_ME ? 1 : 0, regs->msr & MSR_IR ? 1 : 0,
+ regs->msr & MSR_DR ? 1 : 0);
+
+ printf("\n");
+ for (i = 0; i < 32; i++) {
+ if ((i % 8) == 0) {
+ printf("GPR%02d: ", i);
+ }
+
+ printf("%08lX ", regs->gpr[i]);
+ if ((i % 8) == 7) {
+ printf("\n");
+ }
+ }
+}
+
+
+void
+_exception(int signr, struct pt_regs *regs)
+{
+ show_regs(regs);
+ print_backtrace((unsigned long *)regs->gpr[1]);
+ panic("Exception in kernel pc %lx signal %d", regs->nip, signr);
+}
+
+void
+MachineCheckException(struct pt_regs *regs)
+{
+ unsigned long fixup;
+
+ /* Probing PCI using config cycles cause this exception
+ * when a device is not present. Catch it and return to
+ * the PCI exception handler.
+ */
+ if ((fixup = search_exception_table(regs->nip)) != 0) {
+ regs->nip = fixup;
+ return;
+ }
+
+#if defined(CONFIG_CMD_KGDB)
+ if (debugger_exception_handler && (*debugger_exception_handler) (regs))
+ return;
+#endif
+
+ printf("Machine check in kernel mode.\n");
+ printf("Caused by (from msr): ");
+ printf("regs %p ", regs);
+ switch ( regs->msr & 0x001F0000) {
+ case (0x80000000>>11):
+ printf("MSS error. MSSSR0: %08x\n", mfspr(SPRN_MSSSR0));
+ break;
+ case (0x80000000>>12):
+ printf("Machine check signal - probably due to mm fault\n"
+ "with mmu off\n");
+ break;
+ case (0x80000000 >> 13):
+ printf("Transfer error ack signal\n");
+ break;
+ case (0x80000000 >> 14):
+ printf("Data parity signal\n");
+ break;
+ case (0x80000000 >> 15):
+ printf("Address parity signal\n");
+ break;
+ default:
+ printf("Unknown values in msr\n");
+ }
+ show_regs(regs);
+ print_backtrace((unsigned long *)regs->gpr[1]);
+ panic("machine check");
+}
+
+void
+AlignmentException(struct pt_regs *regs)
+{
+#if defined(CONFIG_CMD_KGDB)
+ if (debugger_exception_handler && (*debugger_exception_handler) (regs))
+ return;
+#endif
+ show_regs(regs);
+ print_backtrace((unsigned long *)regs->gpr[1]);
+ panic("Alignment Exception");
+}
+
+void
+ProgramCheckException(struct pt_regs *regs)
+{
+ unsigned char *p = regs ? (unsigned char *)(regs->nip) : NULL;
+ int i, j;
+
+#if defined(CONFIG_CMD_KGDB)
+ if (debugger_exception_handler && (*debugger_exception_handler) (regs))
+ return;
+#endif
+ show_regs(regs);
+
+ p = (unsigned char *)((unsigned long)p & 0xFFFFFFE0);
+ p -= 32;
+ for (i = 0; i < 256; i += 16) {
+ printf("%08x: ", (unsigned int)p + i);
+ for (j = 0; j < 16; j++) {
+ printf("%02x ", p[i + j]);
+ }
+ printf("\n");
+ }
+
+ print_backtrace((unsigned long *)regs->gpr[1]);
+ panic("Program Check Exception");
+}
+
+void
+SoftEmuException(struct pt_regs *regs)
+{
+#if defined(CONFIG_CMD_KGDB)
+ if (debugger_exception_handler && (*debugger_exception_handler) (regs))
+ return;
+#endif
+ show_regs(regs);
+ print_backtrace((unsigned long *)regs->gpr[1]);
+ panic("Software Emulation Exception");
+}
+
+void
+UnknownException(struct pt_regs *regs)
+{
+#if defined(CONFIG_CMD_KGDB)
+ if (debugger_exception_handler && (*debugger_exception_handler) (regs))
+ return;
+#endif
+ printf("UnknownException regs@%lx\n", (ulong)regs);
+ printf("Bad trap at PC: %lx, SR: %lx, vector=%lx\n",
+ regs->nip, regs->msr, regs->trap);
+ _exception(0, regs);
+}
+
+/*
+ * Probe an address by reading.
+ * If not present, return -1,
+ * otherwise return 0.
+ */
+int
+addr_probe(uint *addr)
+{
+ return 0;
+}
generated by cgit v1.1 at 2024-12-20 09:08:17 +0000