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-rw-r--r--arch/arm/cpu/arm1176/cpu.c3
-rw-r--r--arch/arm/cpu/arm1176/start.S65
-rw-r--r--include/configs/smdk6400.h8
3 files changed, 53 insertions, 23 deletions
diff --git a/arch/arm/cpu/arm1176/cpu.c b/arch/arm/cpu/arm1176/cpu.c
index befa0cdcc4..c0fd114e16 100644
--- a/arch/arm/cpu/arm1176/cpu.c
+++ b/arch/arm/cpu/arm1176/cpu.c
@@ -33,9 +33,6 @@
#include <common.h>
#include <command.h>
-#ifdef CONFIG_S3C64XX
-#include <asm/arch/s3c6400.h>
-#endif
#include <asm/system.h>
static void cache_flush (void);
diff --git a/arch/arm/cpu/arm1176/start.S b/arch/arm/cpu/arm1176/start.S
index e2b6c9b08d..a540edbfbf 100644
--- a/arch/arm/cpu/arm1176/start.S
+++ b/arch/arm/cpu/arm1176/start.S
@@ -1,5 +1,5 @@
/*
- * armboot - Startup Code for S3C6400/ARM1176 CPU-core
+ * armboot - Startup Code for ARM1176 CPU-core
*
* Copyright (c) 2007 Samsung Electronics
*
@@ -35,9 +35,6 @@
#ifdef CONFIG_ENABLE_MMU
#include <asm/proc/domain.h>
#endif
-#ifdef CONFIG_S3C64XX
-#include <asm/arch/s3c6400.h>
-#endif
#if !defined(CONFIG_ENABLE_MMU) && !defined(CONFIG_SYS_PHY_UBOOT_BASE)
#define CONFIG_SYS_PHY_UBOOT_BASE CONFIG_SYS_UBOOT_BASE
@@ -172,14 +169,10 @@ cpu_init_crit:
bic r0, r0, #0x00000087 @ clear bits 7, 2:0 (B--- -CAM)
orr r0, r0, #0x00000002 @ set bit 2 (A) Align
orr r0, r0, #0x00001000 @ set bit 12 (I) I-Cache
+
/* Prepare to disable the MMU */
- adr r1, mmu_disable_phys
- /* We presume we're within the first 1024 bytes */
- and r1, r1, #0x3fc
- ldr r2, _TEXT_PHY_BASE
- ldr r3, =0xfff00000
- and r2, r2, r3
- orr r2, r2, r1
+ adr r2, mmu_disable_phys
+ sub r2, r2, #(CONFIG_SYS_PHY_UBOOT_BASE - TEXT_BASE)
b mmu_disable
.align 5
@@ -189,14 +182,30 @@ mmu_disable:
nop
nop
mov pc, r2
+mmu_disable_phys:
+
+#ifdef CONFIG_DISABLE_TCM
+ /*
+ * Disable the TCMs
+ */
+ mrc p15, 0, r0, c0, c0, 2 /* Return TCM details */
+ cmp r0, #0
+ beq skip_tcmdisable
+ mov r1, #0
+ mov r2, #1
+ tst r0, r2
+ mcrne p15, 0, r1, c9, c1, 1 /* Disable Instruction TCM if present*/
+ tst r0, r2, LSL #16
+ mcrne p15, 0, r1, c9, c1, 0 /* Disable Data TCM if present*/
+skip_tcmdisable:
+#endif
#endif
-mmu_disable_phys:
-#ifdef CONFIG_S3C64XX
+#ifdef CONFIG_PERIPORT_REMAP
/* Peri port setup */
- ldr r0, =0x70000000
- orr r0, r0, #0x13
- mcr p15,0,r0,c15,c2,4 @ 256M (0x70000000 - 0x7fffffff)
+ ldr r0, =CONFIG_PERIPORT_BASE
+ orr r0, r0, #CONFIG_PERIPORT_SIZE
+ mcr p15,0,r0,c15,c2,4
#endif
/*
@@ -204,7 +213,25 @@ mmu_disable_phys:
*/
bl lowlevel_init /* go setup pll,mux,memory */
-after_copy:
+#ifndef CONFIG_SKIP_RELOCATE_UBOOT
+relocate: /* relocate U-Boot to RAM */
+ adr r0, _start /* r0 <- current position of code */
+ ldr r1, _TEXT_BASE /* test if we run from flash or RAM */
+ cmp r0, r1 /* don't reloc during debug */
+ beq stack_setup
+
+ ldr r2, _armboot_start
+ ldr r3, _bss_start
+ sub r2, r3, r2 /* r2 <- size of armboot */
+ add r2, r0, r2 /* r2 <- source end address */
+
+copy_loop:
+ ldmia r0!, {r3-r10} /* copy from source address [r0] */
+ stmia r1!, {r3-r10} /* copy to target address [r1] */
+ cmp r0, r2 /* until source end addreee [r2] */
+ ble copy_loop
+#endif /* CONFIG_SKIP_RELOCATE_UBOOT */
+
#ifdef CONFIG_ENABLE_MMU
enable_mmu:
/* enable domain access */
@@ -240,9 +267,9 @@ mmu_enable:
nop
nop
mov pc, r2
+skip_hw_init:
#endif
-skip_hw_init:
/* Set up the stack */
stack_setup:
ldr r0, =CONFIG_SYS_UBOOT_BASE /* base of copy in DRAM */
@@ -310,6 +337,8 @@ phy_last_jump:
mov r0, #0
mov pc, r9
#endif
+
+
/*
*************************************************************************
*
diff --git a/include/configs/smdk6400.h b/include/configs/smdk6400.h
index f04feae219..624fe04b05 100644
--- a/include/configs/smdk6400.h
+++ b/include/configs/smdk6400.h
@@ -40,6 +40,12 @@
#define CONFIG_S3C64XX 1 /* in a SAMSUNG S3C64XX Family */
#define CONFIG_SMDK6400 1 /* on a SAMSUNG SMDK6400 Board */
+#define CONFIG_SKIP_RELOCATE_UBOOT
+
+#define CONFIG_PERIPORT_REMAP
+#define CONFIG_PERIPORT_BASE 0x70000000
+#define CONFIG_PERIPORT_SIZE 0x13
+
#define CONFIG_SYS_SDRAM_BASE 0x50000000
/* input clock of PLL: SMDK6400 has 12MHz input clock */
@@ -61,8 +67,6 @@
#define CONFIG_DISPLAY_CPUINFO
#define CONFIG_DISPLAY_BOARDINFO
-#undef CONFIG_SKIP_RELOCATE_UBOOT
-
/*
* Size of malloc() pool
*/