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authorPeter Tyser <ptyser@xes-inc.com>2010-09-14 19:13:53 -0500
committerWolfgang Denk <wd@denx.de>2010-10-12 23:01:32 +0200
commit52ebd9c1e5db30c0392c0c6761c98252918dd624 (patch)
tree1c0a6eb7b95ab268b7249bc38601ed0f13acec7a
parent3792d7436e2bf881b6abdede5a481a62b5dedd55 (diff)
downloadu-boot-linaro-stable-52ebd9c1e5db30c0392c0c6761c98252918dd624.tar.gz
powerpc: Remove warm reset entry point
No boards utilize the warm reset entry point, so remove it. Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
-rw-r--r--arch/powerpc/cpu/74xx_7xx/start.S16
-rw-r--r--arch/powerpc/cpu/mpc512x/start.S3
-rw-r--r--arch/powerpc/cpu/mpc5xx/start.S16
-rw-r--r--arch/powerpc/cpu/mpc5xxx/start.S17
-rw-r--r--arch/powerpc/cpu/mpc8220/start.S17
-rw-r--r--arch/powerpc/cpu/mpc824x/start.S17
-rw-r--r--arch/powerpc/cpu/mpc8260/start.S18
-rw-r--r--arch/powerpc/cpu/mpc83xx/start.S19
-rw-r--r--arch/powerpc/cpu/mpc85xx/start.S2
-rw-r--r--arch/powerpc/cpu/mpc86xx/start.S15
-rw-r--r--arch/powerpc/cpu/mpc8xx/start.S16
-rw-r--r--arch/powerpc/cpu/ppc4xx/start.S6
12 files changed, 25 insertions, 137 deletions
diff --git a/arch/powerpc/cpu/74xx_7xx/start.S b/arch/powerpc/cpu/74xx_7xx/start.S
index a36af5a83..47694aa1f 100644
--- a/arch/powerpc/cpu/74xx_7xx/start.S
+++ b/arch/powerpc/cpu/74xx_7xx/start.S
@@ -94,17 +94,7 @@ version_string:
. = EXC_OFF_SYS_RESET
.globl _start
_start:
- li r21, BOOTFLAG_COLD /* Normal Power-On: Boot from FLASH */
b boot_cold
- sync
-
- . = EXC_OFF_SYS_RESET + 0x10
-
- .globl _start_warm
-_start_warm:
- li r21, BOOTFLAG_WARM /* Software reboot */
- b boot_warm
- sync
/* the boot code is located below the exception table */
@@ -188,7 +178,6 @@ _end_of_vectors:
. = 0x2000
boot_cold:
-boot_warm:
/* disable everything */
li r0, 0
mtspr HID0, r0
@@ -288,14 +277,11 @@ in_flash:
bl cpu_init_f
sync
- mr r3, r21
-
- /* r3: BOOTFLAG */
/* run 1st part of board init code (from Flash) */
bl board_init_f
sync
- /* NOTREACHED */
+ /* NOTREACHED - board_init_f() does not return */
.globl invalidate_bats
invalidate_bats:
diff --git a/arch/powerpc/cpu/mpc512x/start.S b/arch/powerpc/cpu/mpc512x/start.S
index d26b61707..1047c513f 100644
--- a/arch/powerpc/cpu/mpc512x/start.S
+++ b/arch/powerpc/cpu/mpc512x/start.S
@@ -100,7 +100,6 @@ version_string:
.globl _start
/* Start from here after reset/power on */
_start:
- li r21, BOOTFLAG_COLD /* Normal Power-On: Boot from FLASH */
b boot_cold
.globl _start_of_vectors
@@ -260,8 +259,6 @@ in_flash:
/* run low-level CPU init code (in Flash) */
bl cpu_init_f
- /* r3: BOOTFLAG */
- mr r3, r21
/* run 1st part of board init code (in Flash) */
bl board_init_f
diff --git a/arch/powerpc/cpu/mpc5xx/start.S b/arch/powerpc/cpu/mpc5xx/start.S
index 0af879e39..4fd9b63e5 100644
--- a/arch/powerpc/cpu/mpc5xx/start.S
+++ b/arch/powerpc/cpu/mpc5xx/start.S
@@ -91,18 +91,6 @@ _start:
li r4, CONFIG_SYS_ISB /* Set ISB bit */
or r3, r3, r4
mtspr 638, r3
- li r21, BOOTFLAG_COLD /* Normal Power-On: Boot from FLASH */
- b boot_cold
-
- . = EXC_OFF_SYS_RESET + 0x20
-
- .globl _start_warm
-_start_warm:
- li r21, BOOTFLAG_WARM /* Software reboot */
- b boot_warm
-
-boot_cold:
-boot_warm:
/* Initialize machine status; enable machine check interrupt */
/*----------------------------------------------------------------------*/
@@ -188,10 +176,10 @@ in_flash:
/* r3: IMMR */
bl cpu_init_f /* run low-level CPU init code (from Flash) */
- mr r3, r21
- /* r3: BOOTFLAG */
bl board_init_f /* run 1st part of board init code (from Flash) */
+ /* NOTREACHED - board_init_f() does not return */
+
.globl _start_of_vectors
_start_of_vectors:
diff --git a/arch/powerpc/cpu/mpc5xxx/start.S b/arch/powerpc/cpu/mpc5xxx/start.S
index 8b9f09b39..1385869e7 100644
--- a/arch/powerpc/cpu/mpc5xxx/start.S
+++ b/arch/powerpc/cpu/mpc5xxx/start.S
@@ -89,19 +89,6 @@ version_string:
. = EXC_OFF_SYS_RESET
.globl _start
_start:
- li r21, BOOTFLAG_COLD /* Normal Power-On */
- nop
- b boot_cold
-
- . = EXC_OFF_SYS_RESET + 0x10
-
- .globl _start_warm
-_start_warm:
- li r21, BOOTFLAG_WARM /* Software reboot */
- b boot_warm
-
-boot_cold:
-boot_warm:
mfmsr r5 /* save msr contents */
/* Move CSBoot and adjust instruction pointer */
@@ -175,10 +162,10 @@ lowboot_reentry:
/* r3: IMMR */
bl cpu_init_f /* run low-level CPU init code (in Flash)*/
- mr r3, r21
- /* r3: BOOTFLAG */
bl board_init_f /* run 1st part of board init code (in Flash)*/
+ /* NOTREACHED - board_init_f() does not return */
+
/*
* Vector Table
*/
diff --git a/arch/powerpc/cpu/mpc8220/start.S b/arch/powerpc/cpu/mpc8220/start.S
index 3d79d8ec0..c156e2574 100644
--- a/arch/powerpc/cpu/mpc8220/start.S
+++ b/arch/powerpc/cpu/mpc8220/start.S
@@ -88,19 +88,6 @@ version_string:
. = EXC_OFF_SYS_RESET
.globl _start
_start:
- li r21, BOOTFLAG_COLD /* Normal Power-On */
- nop
- b boot_cold
-
- . = EXC_OFF_SYS_RESET + 0x10
-
- .globl _start_warm
-_start_warm:
- li r21, BOOTFLAG_WARM /* Software reboot */
- b boot_warm
-
-boot_cold:
-boot_warm:
mfmsr r5 /* save msr contents */
/* replace default MBAR base address from 0x80000000
@@ -144,10 +131,10 @@ boot_warm:
/* r3: IMMR */
bl cpu_init_f /* run low-level CPU init code (in Flash)*/
- mr r3, r21
- /* r3: BOOTFLAG */
bl board_init_f /* run 1st part of board init code (in Flash)*/
+ /* NOTREACHED - board_init_f() does not return */
+
/*
* Vector Table
*/
diff --git a/arch/powerpc/cpu/mpc824x/start.S b/arch/powerpc/cpu/mpc824x/start.S
index f3f595af2..5b126bb9a 100644
--- a/arch/powerpc/cpu/mpc824x/start.S
+++ b/arch/powerpc/cpu/mpc824x/start.S
@@ -97,19 +97,6 @@ version_string:
. = EXC_OFF_SYS_RESET
.globl _start
_start:
- li r21, BOOTFLAG_COLD /* Normal Power-On: Boot from FLASH */
- b boot_cold
-
- . = EXC_OFF_SYS_RESET + 0x10
-
- .globl _start_warm
-_start_warm:
- li r21, BOOTFLAG_WARM /* Software reboot */
- b boot_warm
-
-boot_cold:
-boot_warm:
-
/* Initialize machine status; enable machine check interrupt */
/*----------------------------------------------------------------------*/
li r3, MSR_KERNEL /* Set FP, ME, RI flags */
@@ -198,10 +185,10 @@ in_flash:
/* r3: IMMR */
bl cpu_init_f /* run low-level CPU init code (from Flash) */
- mr r3, r21
- /* r3: BOOTFLAG */
bl board_init_f /* run 1st part of board init code (from Flash) */
+ /* NOTREACHED - board_init_f() does not return */
+
.globl _start_of_vectors
_start_of_vectors:
diff --git a/arch/powerpc/cpu/mpc8260/start.S b/arch/powerpc/cpu/mpc8260/start.S
index a43504276..9485afa9c 100644
--- a/arch/powerpc/cpu/mpc8260/start.S
+++ b/arch/powerpc/cpu/mpc8260/start.S
@@ -161,18 +161,6 @@ _hrcw_table:
.globl _start
_start:
- li r21, BOOTFLAG_COLD /* Normal Power-On: Boot from FLASH*/
- nop
- b boot_cold
-
- . = EXC_OFF_SYS_RESET + 0x10
-
- .globl _start_warm
-_start_warm:
- li r21, BOOTFLAG_WARM /* Software reboot */
- b boot_warm
-
-boot_cold:
#if defined(CONFIG_MPC8260ADS) && defined(CONFIG_SYS_DEFAULT_IMMR)
lis r3, CONFIG_SYS_DEFAULT_IMMR@h
nop
@@ -185,7 +173,7 @@ boot_cold:
stw r4, 0(r3)
nop
#endif /* CONFIG_MPC8260ADS && CONFIG_SYS_DEFAULT_IMMR */
-boot_warm:
+
mfmsr r5 /* save msr contents */
#if defined(CONFIG_COGENT)
@@ -254,10 +242,10 @@ in_flash:
bl init_debug /* set up debugging stuff */
#endif
- mr r3, r21
- /* r3: BOOTFLAG */
bl board_init_f /* run 1st part of board init code (in Flash)*/
+ /* NOTREACHED - board_init_f() does not return */
+
/*
* Vector Table
*/
diff --git a/arch/powerpc/cpu/mpc83xx/start.S b/arch/powerpc/cpu/mpc83xx/start.S
index c7d85a878..bdce91581 100644
--- a/arch/powerpc/cpu/mpc83xx/start.S
+++ b/arch/powerpc/cpu/mpc83xx/start.S
@@ -183,22 +183,9 @@ ppcDWload:
.globl _start
_start: /* time t 0 */
- li r21, BOOTFLAG_COLD /* Normal Power-On: Boot from FLASH*/
- nop
- b boot_cold
-
- . = EXC_OFF_SYS_RESET + 0x10
-
- .globl _start_warm
-_start_warm:
- li r21, BOOTFLAG_WARM /* Software reboot */
- b boot_warm
-
-
-boot_cold: /* time t 3 */
lis r4, CONFIG_DEFAULT_IMMR@h
nop
-boot_warm: /* time t 5 */
+
mfmsr r5 /* save msr contents */
/* 83xx manuals prescribe a specific sequence for updating IMMRBAR. */
@@ -302,11 +289,11 @@ in_flash:
/* run low-level CPU init code (in Flash)*/
bl cpu_init_f
- /* r3: BOOTFLAG */
- mr r3, r21
/* run 1st part of board init code (in Flash)*/
bl board_init_f
+ /* NOTREACHED - board_init_f() does not return */
+
#ifndef CONFIG_NAND_SPL
/*
* Vector Table
diff --git a/arch/powerpc/cpu/mpc85xx/start.S b/arch/powerpc/cpu/mpc85xx/start.S
index 3278b109f..91096ad58 100644
--- a/arch/powerpc/cpu/mpc85xx/start.S
+++ b/arch/powerpc/cpu/mpc85xx/start.S
@@ -432,6 +432,8 @@ _start_cont:
bl board_init_f
isync
+ /* NOTREACHED - board_init_f() does not return */
+
#ifndef CONFIG_NAND_SPL
. = EXC_OFF_SYS_RESET
.globl _start_of_vectors
diff --git a/arch/powerpc/cpu/mpc86xx/start.S b/arch/powerpc/cpu/mpc86xx/start.S
index ed1e4ca66..596053f88 100644
--- a/arch/powerpc/cpu/mpc86xx/start.S
+++ b/arch/powerpc/cpu/mpc86xx/start.S
@@ -83,17 +83,7 @@ version_string:
. = EXC_OFF_SYS_RESET
.globl _start
_start:
- li r21, BOOTFLAG_COLD /* Normal Power-On: Boot from FLASH */
b boot_cold
- sync
-
- . = EXC_OFF_SYS_RESET + 0x10
-
- .globl _start_warm
-_start_warm:
- li r21, BOOTFLAG_WARM /* Software reboot */
- b boot_warm
- sync
/* the boot code is located below the exception table */
@@ -166,7 +156,6 @@ _end_of_vectors:
. = 0x2000
boot_cold:
-boot_warm:
/*
* NOTE: Only Cpu 0 will ever come here. Other cores go to an
* address specified by the BPTR
@@ -303,14 +292,12 @@ diag_done:
#endif
/* bl l2cache_enable */
- mr r3, r21
- /* r3: BOOTFLAG */
/* run 1st part of board init code (from Flash) */
bl board_init_f
sync
- /* NOTREACHED */
+ /* NOTREACHED - board_init_f() does not return */
.globl invalidate_bats
invalidate_bats:
diff --git a/arch/powerpc/cpu/mpc8xx/start.S b/arch/powerpc/cpu/mpc8xx/start.S
index 7cf602fd4..d6100ec14 100644
--- a/arch/powerpc/cpu/mpc8xx/start.S
+++ b/arch/powerpc/cpu/mpc8xx/start.S
@@ -96,18 +96,6 @@ version_string:
_start:
lis r3, CONFIG_SYS_IMMR@h /* position IMMR */
mtspr 638, r3
- li r21, BOOTFLAG_COLD /* Normal Power-On: Boot from FLASH */
- b boot_cold
-
- . = EXC_OFF_SYS_RESET + 0x10
-
- .globl _start_warm
-_start_warm:
- li r21, BOOTFLAG_WARM /* Software reboot */
- b boot_warm
-
-boot_cold:
-boot_warm:
/* Initialize machine status; enable machine check interrupt */
/*----------------------------------------------------------------------*/
@@ -202,10 +190,10 @@ in_flash:
/* r3: IMMR */
bl cpu_init_f /* run low-level CPU init code (from Flash) */
- mr r3, r21
- /* r3: BOOTFLAG */
bl board_init_f /* run 1st part of board init code (from Flash) */
+ /* NOTREACHED - board_init_f() does not return */
+
.globl _start_of_vectors
_start_of_vectors:
diff --git a/arch/powerpc/cpu/ppc4xx/start.S b/arch/powerpc/cpu/ppc4xx/start.S
index c2d52bfb9..03bde4d40 100644
--- a/arch/powerpc/cpu/ppc4xx/start.S
+++ b/arch/powerpc/cpu/ppc4xx/start.S
@@ -261,6 +261,7 @@
GET_GOT
bl cpu_init_f /* run low-level CPU init code (from Flash) */
bl board_init_f
+ /* NOTREACHED - board_init_f() does not return */
#endif
#if defined(CONFIG_SYS_RAMBOOT)
@@ -803,6 +804,7 @@ _start:
bl cpu_init_f /* run low-level CPU init code (from Flash) */
bl board_init_f
+ /* NOTREACHED - board_init_f() does not return */
#endif
#endif /* CONFIG_440 */
@@ -911,6 +913,7 @@ _start:
GET_GOT /* initialize GOT access */
bl board_init_f /* run first part of init code (from Flash) */
+ /* NOTREACHED - board_init_f() does not return */
#endif /* CONFIG_IOP480 */
@@ -1180,8 +1183,9 @@ _start:
bl cpu_init_f /* run low-level CPU init code (from Flash) */
- /* NEVER RETURNS! */
bl board_init_f /* run first part of init code (from Flash) */
+ /* NOTREACHED - board_init_f() does not return */
+
#endif /* CONFIG_NAND_SPL */
#endif /* CONFIG_405GP || CONFIG_405CR || CONFIG_405 || CONFIG_405EP */