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Diffstat (limited to 'arch/ppc64/boot/crt0.S')
| -rw-r--r-- | arch/ppc64/boot/crt0.S | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/arch/ppc64/boot/crt0.S b/arch/ppc64/boot/crt0.S deleted file mode 100644 index 3861e7f9cf1..00000000000 --- a/arch/ppc64/boot/crt0.S +++ /dev/null @@ -1,48 +0,0 @@ -/* - * Copyright (C) Paul Mackerras 1997. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * - * NOTE: this code runs in 32 bit mode and is packaged as ELF32. - */ - -#include "ppc_asm.h" - - .text - .globl _start -_start: - lis r9,_start@h - lis r8,_etext@ha - addi r8,r8,_etext@l -1: dcbf r0,r9 - icbi r0,r9 - addi r9,r9,0x20 - cmplwi 0,r9,8 - blt 1b - sync - isync - - ## Clear out the BSS as per ANSI C requirements - - lis r7,_end@ha - addi r7,r7,_end@l # r7 = &_end - lis r8,__bss_start@ha # - addi r8,r8,__bss_start@l # r8 = &_bss_start - - ## Determine how large an area, in number of words, to clear - - subf r7,r8,r7 # r7 = &_end - &_bss_start + 1 - addi r7,r7,3 # r7 += 3 - srwi. r7,r7,2 # r7 = size in words. - beq 3f # If the size is zero, don't bother - addi r8,r8,-4 # r8 -= 4 - mtctr r7 # SPRN_CTR = number of words to clear - li r0,0 # r0 = 0 -2: stwu r0,4(r8) # Clear out a word - bdnz 2b # Keep clearing until done -3: - b start - |