aboutsummaryrefslogtreecommitdiffstats
path: root/arch/ppc64/boot/crt0.S
diff options
context:
space:
mode:
Diffstat (limited to 'arch/ppc64/boot/crt0.S')
-rw-r--r--arch/ppc64/boot/crt0.S29
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/ppc64/boot/crt0.S b/arch/ppc64/boot/crt0.S
index da6618a865c9..5788a453a7a2 100644
--- a/arch/ppc64/boot/crt0.S
+++ b/arch/ppc64/boot/crt0.S
@@ -14,9 +14,38 @@
14 .text 14 .text
15 .globl _start 15 .globl _start
16_start: 16_start:
17 bl reloc_offset
18
19reloc_offset:
20 mflr r0
21 lis r9,reloc_offset@ha
22 addi r9,r9,reloc_offset@l
23 subf. r0,r9,r0
24 beq clear_caches
25
26reloc_got2:
27 lis r9,__got2_start@ha
28 addi r9,r9,__got2_start@l
29 lis r8,__got2_end@ha
30 addi r8,r8,__got2_end@l
31 subf. r8,r9,r8
32 beq clear_caches
33 srwi. r8,r8,2
34 mtctr r8
35 add r9,r0,r9
36reloc_got2_loop:
37 lwz r8,0(r9)
38 add r8,r8,r0
39 stw r8,0(r9)
40 addi r9,r9,4
41 bdnz reloc_got2_loop
42
43clear_caches:
17 lis r9,_start@h 44 lis r9,_start@h
45 add r9,r0,r9
18 lis r8,_etext@ha 46 lis r8,_etext@ha
19 addi r8,r8,_etext@l 47 addi r8,r8,_etext@l
48 add r8,r0,r8
201: dcbf r0,r9 491: dcbf r0,r9
21 icbi r0,r9 50 icbi r0,r9
22 addi r9,r9,0x20 51 addi r9,r9,0x20