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authorZhong Hongbo <bocui107@gmail.com>2012-07-07 03:24:33 +0000
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2012-07-20 14:24:08 +0200
commit448217d4b2e11b11ae5addd1d1f752ce194d6af0 (patch)
tree0bac7b2fb11a99bf7d8c256a484188b2ca11e66c /arch/arm/cpu
parent3ec81d758c09d6887a77a1b1259d044a2905bc8e (diff)
downloadu-boot-linaro-stable-448217d4b2e11b11ae5addd1d1f752ce194d6af0.tar.gz
arm: Fix to mistake clean the memory space
In currently, when __bss_start is equal to __bss_end__, The bss loop will clear all the things in memory space. But just only when __bss_end__ greater than __bss_start__, we do the clear bss section operation. Signed-off-by: Zhong Hongbo <bocui107@gmail.com> Acked-by: Andreas BieƟmann <andreas.devel@googlemail.com>
Diffstat (limited to 'arch/arm/cpu')
-rw-r--r--arch/arm/cpu/arm1136/start.S8
-rw-r--r--arch/arm/cpu/arm1176/start.S9
-rw-r--r--arch/arm/cpu/arm720t/start.S8
-rw-r--r--arch/arm/cpu/arm920t/start.S8
-rw-r--r--arch/arm/cpu/arm925t/start.S8
-rw-r--r--arch/arm/cpu/arm946es/start.S8
-rw-r--r--arch/arm/cpu/arm_intcm/start.S8
-rw-r--r--arch/arm/cpu/armv7/start.S8
-rw-r--r--arch/arm/cpu/ixp/start.S8
-rw-r--r--arch/arm/cpu/lh7a40x/start.S8
-rw-r--r--arch/arm/cpu/pxa/start.S8
-rw-r--r--arch/arm/cpu/s3c44b0/start.S8
-rw-r--r--arch/arm/cpu/sa1100/start.S8
13 files changed, 65 insertions, 40 deletions
diff --git a/arch/arm/cpu/arm1136/start.S b/arch/arm/cpu/arm1136/start.S
index c0db96cb1..2483c63ef 100644
--- a/arch/arm/cpu/arm1136/start.S
+++ b/arch/arm/cpu/arm1136/start.S
@@ -251,10 +251,12 @@ clear_bss:
add r1, r1, r4
mov r2, #0x00000000 /* clear */
-clbss_l:str r2, [r0] /* clear loop... */
+clbss_l:cmp r0, r1 /* clear loop... */
+ bhs clbss_e /* if reached end of bss, exit */
+ str r2, [r0]
add r0, r0, #4
- cmp r0, r1
- bne clbss_l
+ b clbss_l
+clbss_e:
#endif /* #ifndef CONFIG_SPL_BUILD */
/*
diff --git a/arch/arm/cpu/arm1176/start.S b/arch/arm/cpu/arm1176/start.S
index 848144a85..d61364109 100644
--- a/arch/arm/cpu/arm1176/start.S
+++ b/arch/arm/cpu/arm1176/start.S
@@ -351,11 +351,12 @@ clear_bss:
add r1, r1, r4
mov r2, #0x00000000 /* clear */
-clbss_l:str r2, [r0] /* clear loop... */
+clbss_l:cmp r0, r1 /* clear loop... */
+ bhs clbss_e /* if reached end of bss, exit */
+ str r2, [r0]
add r0, r0, #4
- cmp r0, r1
- bne clbss_l
-
+ b clbss_l
+clbss_e:
#ifndef CONFIG_NAND_SPL
bl coloured_LED_init
bl red_led_on
diff --git a/arch/arm/cpu/arm720t/start.S b/arch/arm/cpu/arm720t/start.S
index 540e3c2f7..3b97e804a 100644
--- a/arch/arm/cpu/arm720t/start.S
+++ b/arch/arm/cpu/arm720t/start.S
@@ -228,10 +228,12 @@ clear_bss:
add r1, r1, r4
mov r2, #0x00000000 /* clear */
-clbss_l:str r2, [r0] /* clear loop... */
+clbss_l:cmp r0, r1 /* clear loop... */
+ bhs clbss_e /* if reached end of bss, exit */
+ str r2, [r0]
add r0, r0, #4
- cmp r0, r1
- bne clbss_l
+ b clbss_l
+clbss_e:
bl coloured_LED_init
bl red_led_on
diff --git a/arch/arm/cpu/arm920t/start.S b/arch/arm/cpu/arm920t/start.S
index 8c5612c31..9b8604e90 100644
--- a/arch/arm/cpu/arm920t/start.S
+++ b/arch/arm/cpu/arm920t/start.S
@@ -271,10 +271,12 @@ clear_bss:
add r1, r1, r4
mov r2, #0x00000000 /* clear */
-clbss_l:str r2, [r0] /* clear loop... */
+clbss_l:cmp r0, r1 /* clear loop... */
+ bhs clbss_e /* if reached end of bss, exit */
+ str r2, [r0]
add r0, r0, #4
- cmp r0, r1
- bne clbss_l
+ b clbss_l
+clbss_e:
bl coloured_LED_init
bl red_led_on
diff --git a/arch/arm/cpu/arm925t/start.S b/arch/arm/cpu/arm925t/start.S
index dbb93ef09..1a5441686 100644
--- a/arch/arm/cpu/arm925t/start.S
+++ b/arch/arm/cpu/arm925t/start.S
@@ -265,10 +265,12 @@ clear_bss:
add r1, r1, r4
mov r2, #0x00000000 /* clear */
-clbss_l:str r2, [r0] /* clear loop... */
+clbss_l:cmp r0, r1 /* clear loop... */
+ bhs clbss_e /* if reached end of bss, exit */
+ str r2, [r0]
add r0, r0, #4
- cmp r0, r1
- bne clbss_l
+ b clbss_l
+clbss_e:
bl coloured_LED_init
bl red_led_on
diff --git a/arch/arm/cpu/arm946es/start.S b/arch/arm/cpu/arm946es/start.S
index 89ba5587e..b4d1d2dd1 100644
--- a/arch/arm/cpu/arm946es/start.S
+++ b/arch/arm/cpu/arm946es/start.S
@@ -236,10 +236,12 @@ clear_bss:
add r1, r1, r4
mov r2, #0x00000000 /* clear */
-clbss_l:str r2, [r0] /* clear loop... */
+clbss_l:cmp r0, r1 /* clear loop... */
+ bhs clbss_e /* if reached end of bss, exit */
+ str r2, [r0]
add r0, r0, #4
- cmp r0, r1
- blo clbss_l
+ b clbss_l
+clbss_e:
#endif
/*
diff --git a/arch/arm/cpu/arm_intcm/start.S b/arch/arm/cpu/arm_intcm/start.S
index 2033b362f..b85e7d442 100644
--- a/arch/arm/cpu/arm_intcm/start.S
+++ b/arch/arm/cpu/arm_intcm/start.S
@@ -232,10 +232,12 @@ clear_bss:
add r1, r1, r4
mov r2, #0x00000000 /* clear */
-clbss_l:str r2, [r0] /* clear loop... */
+clbss_l:cmp r0, r1 /* clear loop... */
+ bhs clbss_e /* if reached end of bss, exit */
+ str r2, [r0]
add r0, r0, #4
- cmp r0, r1
- bne clbss_l
+ b clbss_l
+clbss_e:
bl coloured_LED_init
bl red_led_on
diff --git a/arch/arm/cpu/armv7/start.S b/arch/arm/cpu/armv7/start.S
index 22a3cedcb..aee27fdc4 100644
--- a/arch/arm/cpu/armv7/start.S
+++ b/arch/arm/cpu/armv7/start.S
@@ -259,10 +259,12 @@ clear_bss:
#endif
mov r2, #0x00000000 /* clear */
-clbss_l:str r2, [r0] /* clear loop... */
+clbss_l:cmp r0, r1 /* clear loop... */
+ bhs clbss_e /* if reached end of bss, exit */
+ str r2, [r0]
add r0, r0, #4
- cmp r0, r1
- bne clbss_l
+ b clbss_l
+clbss_e:
/*
* We are done. Do not return, instead branch to second part of board
diff --git a/arch/arm/cpu/ixp/start.S b/arch/arm/cpu/ixp/start.S
index cb32121a0..59c359a35 100644
--- a/arch/arm/cpu/ixp/start.S
+++ b/arch/arm/cpu/ixp/start.S
@@ -334,10 +334,12 @@ clear_bss:
add r1, r1, r4
mov r2, #0x00000000 /* clear */
-clbss_l:str r2, [r0] /* clear loop... */
+clbss_l:cmp r0, r1 /* clear loop... */
+ bhs clbss_e /* if reached end of bss, exit */
+ str r2, [r0]
add r0, r0, #4
- cmp r0, r1
- bne clbss_l
+ b clbss_l
+clbss_e:
bl coloured_LED_init
bl red_led_on
diff --git a/arch/arm/cpu/lh7a40x/start.S b/arch/arm/cpu/lh7a40x/start.S
index 62de8b8fc..bd68cd47c 100644
--- a/arch/arm/cpu/lh7a40x/start.S
+++ b/arch/arm/cpu/lh7a40x/start.S
@@ -245,10 +245,12 @@ clear_bss:
add r1, r1, r4
mov r2, #0x00000000 /* clear */
-clbss_l:str r2, [r0] /* clear loop... */
+clbss_l:cmp r0, r1 /* clear loop... */
+ bhs clbss_e /* if reached end of bss, exit */
+ str r2, [r0]
add r0, r0, #4
- cmp r0, r1
- bne clbss_l
+ b clbss_l
+clbss_e:
#endif
/*
diff --git a/arch/arm/cpu/pxa/start.S b/arch/arm/cpu/pxa/start.S
index ba0de8f1d..33c73f67b 100644
--- a/arch/arm/cpu/pxa/start.S
+++ b/arch/arm/cpu/pxa/start.S
@@ -258,10 +258,12 @@ clear_bss:
add r1, r1, r4
mov r2, #0x00000000 /* clear */
-clbss_l:str r2, [r0] /* clear loop... */
+clbss_l:cmp r0, r1 /* clear loop... */
+ bhs clbss_e /* if reached end of bss, exit */
+ str r2, [r0]
add r0, r0, #4
- cmp r0, r1
- bne clbss_l
+ b clbss_l
+clbss_e:
#endif /* #ifndef CONFIG_SPL_BUILD */
/*
diff --git a/arch/arm/cpu/s3c44b0/start.S b/arch/arm/cpu/s3c44b0/start.S
index a29d5b496..8daf26c4f 100644
--- a/arch/arm/cpu/s3c44b0/start.S
+++ b/arch/arm/cpu/s3c44b0/start.S
@@ -217,10 +217,12 @@ clear_bss:
add r1, r1, r4
mov r2, #0x00000000 /* clear */
-clbss_l:str r2, [r0] /* clear loop... */
+clbss_l:cmp r0, r1 /* clear loop... */
+ bhs clbss_e /* if reached end of bss, exit */
+ str r2, [r0]
add r0, r0, #4
- cmp r0, r1
- bne clbss_l
+ b clbss_l
+clbss_e:
bl coloured_LED_init
bl red_led_on
diff --git a/arch/arm/cpu/sa1100/start.S b/arch/arm/cpu/sa1100/start.S
index 92546d8ba..bcea2a8de 100644
--- a/arch/arm/cpu/sa1100/start.S
+++ b/arch/arm/cpu/sa1100/start.S
@@ -221,10 +221,12 @@ clear_bss:
add r1, r1, r4
mov r2, #0x00000000 /* clear */
-clbss_l:str r2, [r0] /* clear loop... */
+clbss_l:cmp r0, r1 /* clear loop... */
+ bhs clbss_e /* if reached end of bss, exit */
+ str r2, [r0]
add r0, r0, #4
- cmp r0, r1
- bne clbss_l
+ b clbss_l
+clbss_e:
#endif
/*