summaryrefslogtreecommitdiff
path: root/arch/arm/kernel/head-common.S
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/kernel/head-common.S')
-rw-r--r--arch/arm/kernel/head-common.S6
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/arm/kernel/head-common.S b/arch/arm/kernel/head-common.S
index 93ad576b2d74..b9505aa267c0 100644
--- a/arch/arm/kernel/head-common.S
+++ b/arch/arm/kernel/head-common.S
@@ -13,6 +13,7 @@
#define ATAG_CORE 0x54410001
#define ATAG_CORE_SIZE ((2*4 + 3*4) >> 2)
+#define ATAG_CORE_SIZE_EMPTY ((2*4) >> 2)
.align 2
.type __switch_data, %object
@@ -96,7 +97,7 @@ __error_a:
bl printhex8
adr r0, str_a2
bl printascii
- adr r3, 3f
+ adr r3, 4f
ldmia r3, {r4, r5, r6} @ get machine desc list
sub r4, r3, r4 @ get offset between virt&phys
add r5, r5, r4 @ convert virt addresses to
@@ -251,7 +252,8 @@ __vet_atags:
bne 1f
ldr r5, [r2, #0] @ is first tag ATAG_CORE?
- subs r5, r5, #ATAG_CORE_SIZE
+ cmp r5, #ATAG_CORE_SIZE
+ cmpne r5, #ATAG_CORE_SIZE_EMPTY
bne 1f
ldr r5, [r2, #4]
ldr r6, =ATAG_CORE