*
* Copyright (c) 2001 Marius Gröger <mag@sysgo.de>
* Copyright (c) 2002 Alex Züpke <azu@sysgo.de>
- * Copyright (c) 2002 Gary Jennejohn <gj@denx.de>
+ * Copyright (c) 2002 Gary Jennejohn <garyj@denx.de>
*
* See file CREDITS for list of people who contributed to this
* project.
* MA 02111-1307 USA
*/
-
+#include <common.h>
#include <config.h>
-#include <version.h>
-#include <status_led.h>
/*
*************************************************************************
.globl _start
-_start: b start_code
+_start: b start_code
ldr pc, _undefined_instruction
ldr pc, _software_interrupt
ldr pc, _prefetch_abort
/*
* set the cpu to SVC32 mode
*/
- mrs r0,cpsr
- bic r0,r0,#0x1f
- orr r0,r0,#0xd3
- msr cpsr,r0
+ mrs r0, cpsr
+ bic r0, r0, #0x1f
+ orr r0, r0, #0xd3
+ msr cpsr, r0
- bl coloured_LED_init
- bl red_LED_on
+ bl coloured_LED_init
+ bl red_LED_on
-#if defined(CONFIG_AT91RM9200DK) || defined(CONFIG_AT91RM9200EK) || defined(CONFIG_AT91RM9200DF)
+#if defined(CONFIG_AT91RM9200DK) || defined(CONFIG_AT91RM9200EK)
/*
* relocate exception table
*/
bne copyex
#endif
-#if defined(CONFIG_S3C2400) || defined(CONFIG_S3C2410)
+#ifdef CONFIG_S3C24X0
/* turn off the watchdog */
# if defined(CONFIG_S3C2400)
-# define pWTCON 0x15300000
-# define INTMSK 0x14400008 /* Interupt-Controller base addresses */
+# define pWTCON 0x15300000
+# define INTMSK 0x14400008 /* Interupt-Controller base addresses */
# define CLKDIVN 0x14800014 /* clock divisor register */
#else
-# define pWTCON 0x53000000
-# define INTMSK 0x4A000008 /* Interupt-Controller base addresses */
+# define pWTCON 0x53000000
+# define INTMSK 0x4A000008 /* Interupt-Controller base addresses */
# define INTSUBMSK 0x4A00001C
# define CLKDIVN 0x4C000014 /* clock divisor register */
# endif
- ldr r0, =pWTCON
- mov r1, #0x0
- str r1, [r0]
+ ldr r0, =pWTCON
+ mov r1, #0x0
+ str r1, [r0]
/*
* mask all IRQs by setting all bits in the INTMR - default
ldr r0, =CLKDIVN
mov r1, #3
str r1, [r0]
-#endif /* CONFIG_S3C2400 || CONFIG_S3C2410 */
+#endif /* CONFIG_S3C24X0 */
/*
* we do sys-critical inits only at reboot,
bl cpu_init_crit
#endif
-#ifndef CONFIG_AT91RM9200
-
#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
+ cmp r0, r1 /* don't reloc during debug */
+ beq stack_setup
ldr r2, _armboot_start
ldr r3, _bss_start
cmp r0, r2 /* until source end addreee [r2] */
ble copy_loop
#endif /* CONFIG_SKIP_RELOCATE_UBOOT */
-#endif
+
/* Set up the stack */
stack_setup:
ldr r0, _TEXT_BASE /* upper 128 KiB: relocated uboot */
- sub r0, r0, #CFG_MALLOC_LEN /* malloc area */
- sub r0, r0, #CFG_GBL_DATA_SIZE /* bdinfo */
+ sub r0, r0, #CONFIG_SYS_MALLOC_LEN /* malloc area */
+ sub r0, r0, #CONFIG_SYS_GBL_DATA_SIZE /* bdinfo */
#ifdef CONFIG_USE_IRQ
sub r0, r0, #(CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ)
#endif
clear_bss:
ldr r0, _bss_start /* find start of bss segment */
ldr r1, _bss_end /* stop here */
- mov r2, #0x00000000 /* clear */
+ mov r2, #0x00000000 /* clear */
clbss_l:str r2, [r0] /* clear loop... */
add r0, r0, #4
* find a lowlevel_init.S in your board directory.
*/
mov ip, lr
-#if defined(CONFIG_AT91RM9200DK) || defined(CONFIG_AT91RM9200EK) || defined(CONFIG_AT91RM9200DF)
-#else
bl lowlevel_init
-#endif
+
mov lr, ip
mov pc, lr
#endif /* CONFIG_SKIP_LOWLEVEL_INIT */
#define S_R1 4
#define S_R0 0
-#define MODE_SVC 0x13
-#define I_BIT 0x80
+#define MODE_SVC 0x13
+#define I_BIT 0x80
/*
* use bad_save_user_regs for abort/prefetch/undef/swi ...
sub sp, sp, #S_FRAME_SIZE
stmia sp, {r0 - r12} @ Calling r0-r12
ldr r2, _armboot_start
- sub r2, r2, #(CONFIG_STACKSIZE+CFG_MALLOC_LEN)
- sub r2, r2, #(CFG_GBL_DATA_SIZE+8) @ set base 2 words into abort stack
+ sub r2, r2, #(CONFIG_STACKSIZE)
+ sub r2, r2, #(CONFIG_SYS_MALLOC_LEN)
+ /* set base 2 words into abort stack */
+ sub r2, r2, #(CONFIG_SYS_GBL_DATA_SIZE+8)
ldmia r2, {r2 - r3} @ get pc, cpsr
add r0, sp, #S_FRAME_SIZE @ restore sp_SVC
.macro irq_save_user_regs
sub sp, sp, #S_FRAME_SIZE
stmia sp, {r0 - r12} @ Calling r0-r12
- add r7, sp, #S_PC
- stmdb r7, {sp, lr}^ @ Calling SP, LR
- str lr, [r7, #0] @ Save calling PC
- mrs r6, spsr
- str r6, [r7, #4] @ Save CPSR
- str r0, [r7, #8] @ Save OLD_R0
+ add r7, sp, #S_PC
+ stmdb r7, {sp, lr}^ @ Calling SP, LR
+ str lr, [r7, #0] @ Save calling PC
+ mrs r6, spsr
+ str r6, [r7, #4] @ Save CPSR
+ str r0, [r7, #8] @ Save OLD_R0
mov r0, sp
.endm
mov r0, r0
ldr lr, [sp, #S_PC] @ Get PC
add sp, sp, #S_FRAME_SIZE
- subs pc, lr, #4 @ return & move spsr_svc into cpsr
+ /* return & move spsr_svc into cpsr */
+ subs pc, lr, #4
.endm
.macro get_bad_stack
ldr r13, _armboot_start @ setup our mode stack
- sub r13, r13, #(CONFIG_STACKSIZE+CFG_MALLOC_LEN)
- sub r13, r13, #(CFG_GBL_DATA_SIZE+8) @ reserved a couple spots in abort stack
+ sub r13, r13, #(CONFIG_STACKSIZE)
+ sub r13, r13, #(CONFIG_SYS_MALLOC_LEN)
+ /* reserve a couple spots in abort stack */
+ sub r13, r13, #(CONFIG_SYS_GBL_DATA_SIZE+8)
str lr, [r13] @ save caller lr / spsr
mrs lr, spsr
- str lr, [r13, #4]
+ str lr, [r13, #4]
mov r13, #MODE_SVC @ prepare SVC-Mode
@ msr spsr_c, r13
undefined_instruction:
get_bad_stack
bad_save_user_regs
- bl do_undefined_instruction
+ bl do_undefined_instruction
.align 5
software_interrupt:
get_bad_stack
bad_save_user_regs
- bl do_software_interrupt
+ bl do_software_interrupt
.align 5
prefetch_abort:
get_bad_stack
bad_save_user_regs
- bl do_prefetch_abort
+ bl do_prefetch_abort
.align 5
data_abort:
get_bad_stack
bad_save_user_regs
- bl do_data_abort
+ bl do_data_abort
.align 5
not_used:
get_bad_stack
bad_save_user_regs
- bl do_not_used
+ bl do_not_used
#ifdef CONFIG_USE_IRQ
irq:
get_irq_stack
irq_save_user_regs
- bl do_irq
+ bl do_irq
irq_restore_user_regs
.align 5
get_fiq_stack
/* someone ought to write a more effiction fiq_save_user_regs */
irq_save_user_regs
- bl do_fiq
+ bl do_fiq
irq_restore_user_regs
#else
irq:
get_bad_stack
bad_save_user_regs
- bl do_irq
+ bl do_irq
.align 5
fiq:
get_bad_stack
bad_save_user_regs
- bl do_fiq
+ bl do_fiq
#endif
projects / u-boot / blobdiff