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-rw-r--r--cpu/mpc83xx/start.S79
1 files changed, 38 insertions, 41 deletions
diff --git a/cpu/mpc83xx/start.S b/cpu/mpc83xx/start.S
index e9f07901b8..fb001a654c 100644
--- a/cpu/mpc83xx/start.S
+++ b/cpu/mpc83xx/start.S
@@ -28,7 +28,7 @@
*/
#include <config.h>
-#include <mpc83xx.h>
+#include <mpc83xx.h>
#include <version.h>
#define CONFIG_83XX 1 /* needed for Linux kernel header files*/
@@ -89,7 +89,7 @@ version_string:
.ascii U_BOOT_VERSION
.ascii " (", __DATE__, " - ", __TIME__, ")"
.ascii " ", CONFIG_IDENT_STRING, "\0"
-
+
.text
#define _HRCW_TABLE_ENTRY(w) \
.fill 8,1,(((w)>>24)&0xff); \
@@ -101,7 +101,6 @@ version_string:
_HRCW_TABLE_ENTRY(CFG_HRCW_HIGH)
-
#ifndef CONFIG_DEFAULT_IMMR
#error CONFIG_DEFAULT_IMMR must be defined
#endif /* CFG_DEFAULT_IMMR */
@@ -143,7 +142,7 @@ _start: /* time t 0 */
. = EXC_OFF_SYS_RESET + 0x10
.globl _start_warm
-_start_warm:
+_start_warm:
li r21, BOOTFLAG_WARM /* Software reboot */
b boot_warm
@@ -156,12 +155,12 @@ boot_warm: /* time t 5 */
lis r3, CFG_IMMRBAR@h
ori r3, r3, CFG_IMMRBAR@l
stw r3, IMMRBAR(r4)
-
+
/* Initialise the E300 processor core */
/*------------------------------------------*/
-
+
bl init_e300_core
-
+
#ifndef CFG_RAMBOOT
/* Inflate flash location so it appears everywhere, calculate */
@@ -218,7 +217,7 @@ _start_of_vectors:
/* External Interrupt exception. */
#ifndef FIXME
STD_EXCEPTION(0x500, ExtInterrupt, external_interrupt)
-#endif
+#endif
/* Alignment exception. */
. = 0x600
@@ -417,9 +416,9 @@ init_e300_core: /* time t 10 */
lis r4, CFG_WATCHDOG_VALUE
ori r4, r4, (SWCRR_SWEN | SWCRR_SWRI | SWCRR_SWPR)
stw r4, SWCRR(r3)
-
+
/* and reset it */
-
+
li r4, 0x556C
sth r4, SWSRR@l(r3)
li r4, 0xAA39
@@ -502,7 +501,7 @@ init_e300_core: /* time t 10 */
/* Done! */
/*------------------------------*/
- blr
+ blr
/* Cache functions.
*
@@ -645,8 +644,8 @@ relocate_code:
mtctr r0
la r8,-4(r4)
la r7,-4(r3)
-
- /* and compare */
+
+ /* and compare */
20: lwzu r20,4(r8)
lwzu r21,4(r7)
xor. r22, r20, r21
@@ -664,21 +663,19 @@ relocate_code:
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:
+4:
bl un_setup_stack_in_data_cache
mr r7, r3
mr r8, r4
bl dcache_disable
mr r3, r7
mr r4, r8
-
+
cmpwi r6,0
add r5,r3,r5
beq 7f /* Always flush prefetch queue in any case */
@@ -889,9 +886,9 @@ map_flash_by_law1:
/* Address Mask in OR0 so ROM appears everywhere */
/*----------------------------------------------------*/
lis r3, (CFG_IMMRBAR)@h /* r3 <= CFG_IMMRBAR */
- lwz r4, OR0@l(r3)
+ lwz r4, OR0@l(r3)
li r5, 0x7fff /* r5 <= 0x00007FFFF */
- and r4, r4, r5
+ and r4, r4, r5
stw r4, OR0@l(r3) /* OR0 <= OR0 & 0x00007FFFF */
/* As MPC8349E User's Manual presented, when RCW[BMS] is set to 0,
@@ -926,9 +923,9 @@ remap_flash_by_law0:
/* Initialize the BR0 with the boot ROM starting address. */
lwz r4, BR0(r3)
li r5, 0x7FFF
- and r4, r4, r5
+ and r4, r4, r5
lis r5, (CFG_FLASH_BASE & 0xFFFF8000)@h
- ori r5, r5, (CFG_FLASH_BASE & 0xFFFF8000)@l
+ ori r5, r5, (CFG_FLASH_BASE & 0xFFFF8000)@l
or r5, r5, r4
stw r5, BR0(r3) /* r5 <= (CFG_FLASH_BASE & 0xFFFF8000) | (BR0 & 0x00007FFF) */
@@ -950,9 +947,9 @@ remap_flash_by_law0:
stw r4, LBLAWAR1(r3) /* Off LBIU LAW1 */
blr
-setup_stack_in_data_cache_on_r1:
+setup_stack_in_data_cache_on_r1:
lis r3, (CFG_IMMRBAR)@h
-
+
/* setup D-BAT for the D-Cache (with out real memory backup) */
lis r4, (CFG_INIT_RAM_ADDR & 0xFFFE0000)@h
@@ -961,13 +958,13 @@ setup_stack_in_data_cache_on_r1:
mtspr DBAT0L, r4
isync
-#if 0
+#if 0
/* Enable MMU */
mfmsr r4
ori r4, r4, (MSR_DR | MSR_IR)@l
mtmsr r4
-#endif
-
+#endif
+
/* Enable and invalidate data cache. */
mfspr r4, HID0
mr r5, r4
@@ -977,19 +974,19 @@ setup_stack_in_data_cache_on_r1:
mtspr HID0, r4
mtspr HID0, r5
sync
-
+
/* Allocate Initial RAM in data cache.*/
li r0, 0
lis r4, (CFG_INIT_RAM_ADDR)@h
ori r4, r4, (CFG_INIT_RAM_ADDR)@l
- li r5, 128*8 /* 128*8*32=32Kb */
+ li r5, 128*8 /* 128*8*32=32Kb */
mtctr r5
1:
dcbz r0, r4
addi r4, r4, 32
bdnz 1b
isync
-
+
/* Lock all the D-cache, basically leaving the reset of the program without dcache */
mfspr r4, HID0
ori r4, r4, (HID0_DLOCK)@l
@@ -1010,14 +1007,14 @@ un_setup_stack_in_data_cache:
blr
mr r14, r4
mr r15, r5
-
+
lis r4, (CFG_INIT_RAM_ADDR & 0xFFFE0000)@h
mtspr DBAT0U, r4
ori r4, r4, 0x0002
mtspr DBAT0L, r4
isync
-
+
/* un lock all the D-cache */
mfspr r4, HID0
lis r5, (~(HID0_DLOCK))@h
@@ -1030,20 +1027,20 @@ un_setup_stack_in_data_cache:
li r0, 0
lis r4, (CFG_INIT_RAM_ADDR)@h
ori r4, r4, (CFG_INIT_RAM_ADDR)@l
- li r5, 128*8 /* 128*8*32=32Kb */
+ li r5, 128*8 /* 128*8*32=32Kb */
mtctr r5
1:
dcbz r0, r4
addi r4, r4, 32
bdnz 1b
isync
-
+
mflr r16
bl dcache_disable
mtlr r16
-
+
blr
-
+
#if 0
#define GREEN_LIGHT 0x2B0D4046
#define RED_LIGHT 0x250D4046
@@ -1054,7 +1051,7 @@ un_setup_stack_in_data_cache:
*/
.globl liblight
-liblight:
+liblight:
lis r3, CFG_IMMRBAR@h
ori r3, r3, CFG_IMMRBAR@l
li r4, 0x3002
@@ -1063,7 +1060,7 @@ liblight:
mtspr HID0, r4
mtspr HID2, r4
lis r4, 0xF8000000@h
- ori r4, r4, 0xF8000000@l
+ ori r4, r4, 0xF8000000@l
stw r4, LBLAWBAR1(r3)
lis r4, 0x8000000E@h
ori r4, r4, 0x8000000E@l
@@ -1083,14 +1080,14 @@ liblight:
ori r6, r6, RED_LIGHT@l
lis r7, LIB_CNT@h
ori r7, r7, LIB_CNT@l
-
+
1:
stw r5, 0(r4)
- mtctr r7
+ mtctr r7
2: bdnz 2b
stw r6, 0(r4)
- mtctr r7
+ mtctr r7
3: bdnz 3b
b 1b
-
+
#endif