*
* Copyright (c) 2004 Texas Instruments <r-woodruff2@ti.com>
*
- * Copyright (c) 2001 Marius Gröger <mag@sysgo.de>
- * Copyright (c) 2002 Alex Z
üpke <azu@sysgo.de>
+ * Copyright (c) 2001 Marius Gröger <mag@sysgo.de>
+ * Copyright (c) 2002 Alex Z
üpke <azu@sysgo.de>
* Copyright (c) 2002 Gary Jennejohn <garyj@denx.de>
* Copyright (c) 2003 Richard Woodruff <r-woodruff2@ti.com>
* Copyright (c) 2003 Kshitij <kshitij@ti.com>
#include <version.h>
.globl _start
_start: b reset
-#ifdef CONFIG_PRELOADER
+#ifdef CONFIG_SPL_BUILD
ldr pc, _hang
ldr pc, _hang
ldr pc, _hang
_irq: .word irq
_fiq: .word fiq
_pad: .word 0x12345678 /* now 16*4=64 */
-#endif /* CONFIG_PRELOADER */
+#endif /* CONFIG_SPL_BUILD */
.global _end_vect
_end_vect:
.globl _TEXT_BASE
_TEXT_BASE:
+#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_TEXT_BASE)
+ .word CONFIG_SPL_TEXT_BASE
+#else
.word CONFIG_SYS_TEXT_BASE
+#endif
/*
* These are defined in the board-specific linker script.
_bss_start_ofs:
.word __bss_start - _start
+.global _image_copy_end_ofs
+_image_copy_end_ofs:
+ .word __image_copy_end - _start
+
.globl _bss_end_ofs
_bss_end_ofs:
+ .word __bss_end - _start
+
+.globl _end_ofs
+_end_ofs:
.word _end - _start
#ifdef CONFIG_USE_IRQ
bl cpu_init_crit
#endif
-/* Set stackpointer in internal RAM to call board_init_f */
-call_board_init_f:
- ldr sp, =(CONFIG_SYS_INIT_SP_ADDR)
- bic sp, sp, #7 /* 8-byte alignment for ABI compliance */
- ldr r0,=0x00000000
-
-#ifdef CONFIG_NAND_SPL
- bl nand_boot
-#else
-#ifdef CONFIG_ONENAND_IPL
- bl start_oneboot
-#else
- bl board_init_f
-#endif /* CONFIG_ONENAND_IPL */
-#endif /* CONFIG_NAND_SPL */
+ bl _main
/*------------------------------------------------------------------------------*/
/*
* void relocate_code (addr_sp, gd, addr_moni)
*
- * This "function" does not return, instead it continues in RAM
- * after relocating the monitor code.
- *
+ * This function relocates the monitor code.
*/
.globl relocate_code
relocate_code:
mov r5, r1 /* save addr of gd */
mov r6, r2 /* save addr of destination */
- /* Set up the stack */
-stack_setup:
- mov sp, r4
-
adr r0, _start
cmp r0, r6
- beq clear_bss /* skip relocation */
+ moveq r9, #0 /* no relocation. relocation offset(r9) = 0 */
+ beq relocate_done /* skip relocation */
mov r1, r6 /* r1 <- scratch for copy_loop */
- ldr r2, _TEXT_BASE
- ldr r3, _bss_start_ofs
+ ldr r3, _image_copy_end_ofs
add r2, r0, r3 /* r2 <- source end address */
copy_loop:
cmp r0, r2 /* until source end address [r2] */
blo copy_loop
-#ifndef CONFIG_PRELOADER
+#ifndef CONFIG_SPL_BUILD
/*
* fix .rel.dyn relocations
*/
add r2, r2, #8 /* each rel.dyn entry is 8 bytes */
cmp r2, r3
blo fixloop
+ bx lr
+
#endif
-clear_bss:
-#ifndef CONFIG_PRELOADER
- ldr r0, _bss_start_ofs
- ldr r1, _bss_end_ofs
- ldr r3, _TEXT_BASE /* Text base */
- mov r4, r6 /* reloc addr */
- add r0, r0, r4
- add r1, r1, r4
- mov r2, #0x00000000 /* clear */
-
-clbss_l:str r2, [r0] /* clear loop... */
- add r0, r0, #4
- cmp r0, r1
- bne clbss_l
-#endif /* #ifndef CONFIG_PRELOADER */
+relocate_done:
-/*
- * We are done. Do not return, instead branch to second part of board
- * initialization, now running from RAM.
- */
-#ifdef CONFIG_NAND_SPL
- ldr r0, _nand_boot_ofs
- adr r1, _start
- add pc, r0, r1
-_nand_boot_ofs
- : .word nand_boot - _start
-#else
-jump_2_ram:
- ldr r0, _board_init_r_ofs
- adr r1, _start
- add lr, r0, r1
- add lr, lr, r9
- /* setup parameters for board_init_r */
- mov r0, r5 /* gd_t */
- mov r1, r6 /* dest_addr */
- /* jump to it ... */
- mov pc, lr
-
-_board_init_r_ofs:
- .word board_init_r - _start
-#endif
+ bx lr
+
+#ifndef CONFIG_SPL_BUILD
_rel_dyn_start_ofs:
.word __rel_dyn_start - _start
_dynsym_start_ofs:
.word __dynsym_start - _start
+#endif
+
+ .globl c_runtime_cpu_setup
+c_runtime_cpu_setup:
+
+ bx lr
+
/*
*************************************************************************
*
mov pc, lr /* back to my caller */
#endif /* CONFIG_SKIP_LOWLEVEL_INIT */
-#ifndef CONFIG_PRELOADER
+#ifndef CONFIG_SPL_BUILD
/*
*************************************************************************
*
.macro get_fiq_stack @ setup FIQ stack
ldr sp, FIQ_STACK_START
.endm
-#endif /* CONFIG_PRELOADER */
+#endif /* CONFIG_SPL_BUILD */
/*
* exception handlers
*/
-#ifdef CONFIG_PRELOADER
+#ifdef CONFIG_SPL_BUILD
.align 5
do_hang:
ldr sp, _TEXT_BASE /* use 32 words about stack */
bl hang /* hang and never return */
-#else /* !CONFIG_PRELOADER */
+#else /* !CONFIG_SPL_BUILD */
.align 5
undefined_instruction:
get_bad_stack
.align 5
.global arm1136_cache_flush
arm1136_cache_flush:
-#if !defined(CONFIG_SYS_NO_ICACHE)
+#if !defined(CONFIG_SYS_ICACHE_OFF)
mcr p15, 0, r1, c7, c5, 0 @ invalidate I cache
#endif
-#if !defined(CONFIG_SYS_NO_DCACHE)
+#if !defined(CONFIG_SYS_DCACHE_OFF)
mcr p15, 0, r1, c7, c14, 0 @ invalidate D cache
#endif
mov pc, lr @ back to caller
-#endif /* CONFIG_PRELOADER */
+#endif /* CONFIG_SPL_BUILD */
projects / karo-tx-uboot.git / blobdiff