CPWAIT r0
/* invalidate I & Data TLB */
- mcr p15, 0, r0, c8, c7, 0
+ mcr p15, 0, r0, c8, c7, 0
CPWAIT r0
/* drain write and fill buffers */
CPWAIT r0
/* set EXP CS0 to the optimum timing */
- ldr r1, =CFG_EXP_CS0
+ ldr r1, =CONFIG_SYS_EXP_CS0
ldr r2, =IXP425_EXP_CS0
str r1, [r2]
/* make sure flash is visible at 0 */
#if 0
- ldr r2, =IXP425_EXP_CFG0
+ ldr r2, =IXP425_EXP_CFG0
ldr r1, [r2]
orr r1, r1, #0x80000000
str r1, [r2]
#endif
- mov r1, #CFG_SDR_CONFIG
+ mov r1, #CONFIG_SYS_SDR_CONFIG
ldr r2, =IXP425_SDR_CONFIG
str r1, [r2]
/* disable refresh cycles */
- mov r1, #0
+ mov r1, #0
ldr r3, =IXP425_SDR_REFRESH
str r1, [r3]
/* send nop command */
- mov r1, #3
+ mov r1, #3
ldr r4, =IXP425_SDR_IR
str r1, [r4]
DELAY_FOR 0x4000, r0
/* set SDRAM internal refresh val */
- ldr r1, =CFG_SDRAM_REFRESH_CNT
+ ldr r1, =CONFIG_SYS_SDRAM_REFRESH_CNT
str r1, [r3]
DELAY_FOR 0x4000, r0
bne 111b
/* set mode register in sdram */
- mov r1, #CFG_SDR_MODE_CONFIG
+ mov r1, #CONFIG_SYS_SDR_MODE_CONFIG
str r1, [r4]
DELAY_FOR 0x4000, r0
/* copy */
mov r0, #0
mov r4, r0
- add r2, r0, #0x40000
+ add r2, r0, #CONFIG_SYS_MONITOR_LEN
mov r1, #0x10000000
mov r5, r1
CPWAIT r0
/* invalidate I & Data TLB */
- mcr p15, 0, r0, c8, c7, 0
+ mcr p15, 0, r0, c8, c7, 0
CPWAIT r0
/* drain write and fill buffers */
CPWAIT r0
/* move flash to 0x50000000 */
- ldr r2, =IXP425_EXP_CFG0
+ ldr r2, =IXP425_EXP_CFG0
ldr r1, [r2]
bic r1, r1, #0x80000000
str r1, [r2]
nop
/* invalidate I & Data TLB */
- mcr p15, 0, r0, c8, c7, 0
+ mcr p15, 0, r0, c8, c7, 0
CPWAIT r0
/* enable I cache */
orr r0,r0,#0x13
msr cpsr,r0
+#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 */
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 */
/* 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
add r8, sp, #S_PC
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+CONFIG_SYS_MALLOC_LEN)
+ sub r2, r2, #(CONFIG_SYS_GBL_DATA_SIZE+8) @ set base 2 words into abort stack
ldmia r2, {r2 - r4} /* get pc, cpsr, old_r0 */
add r0, sp, #S_FRAME_SIZE /* restore sp_SVC */
.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+CONFIG_SYS_MALLOC_LEN)
+ sub r13, r13, #(CONFIG_SYS_GBL_DATA_SIZE+8) @ reserved a couple spots in abort stack
str lr, [r13] @ save caller lr / spsr
mrs lr, spsr
.globl reset_cpu
reset_cpu:
- ldr r1, =0x482e
+ ldr r1, =0x482e
ldr r2, =IXP425_OSWK
str r1, [r2]
- ldr r1, =0x0fff
+ ldr r1, =0x0fff
ldr r2, =IXP425_OSWT
str r1, [r2]
- ldr r1, =0x5
+ ldr r1, =0x5
ldr r2, =IXP425_OSWE
str r1, [r2]
b reset_endless
reset_endless:
b reset_endless
+
+#ifdef CONFIG_USE_IRQ
+
+.LC0: .word loops_per_jiffy
+
+/*
+ * 0 <= r0 <= 2000
+ */
+.globl __udelay
+__udelay:
+ mov r2, #0x6800
+ orr r2, r2, #0x00db
+ mul r0, r2, r0
+ ldr r2, .LC0
+ ldr r2, [r2] @ max = 0x0fffffff
+ mov r0, r0, lsr #11 @ max = 0x00003fff
+ mov r2, r2, lsr #11 @ max = 0x0003ffff
+ mul r0, r2, r0 @ max = 2^32-1
+ movs r0, r0, lsr #6
+
+delay_loop:
+ subs r0, r0, #1
+ bne delay_loop
+ mov pc, lr
+
+#endif /* CONFIG_USE_IRQ */