diff options
| author | Greg Watson <jarrah@users.sourceforge.net> | 2003-07-14 18:03:07 +0000 |
|---|---|---|
| committer | Greg Watson <jarrah@users.sourceforge.net> | 2003-07-14 18:03:07 +0000 |
| commit | 8052f4d5da886cf2a66d6ad999eaaa6050b3e032 (patch) | |
| tree | 532cad8d0fad32df4089b15c54494c8eb0f8d331 /src/arch/ppc/init | |
| parent | 109959d6b125ec404bd83413548ec58e659d693b (diff) | |
new init format
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@961 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/arch/ppc/init')
| -rw-r--r-- | src/arch/ppc/init/Config.lb | 2 | ||||
| -rw-r--r-- | src/arch/ppc/init/crt0.S.lb | 66 |
2 files changed, 68 insertions, 0 deletions
diff --git a/src/arch/ppc/init/Config.lb b/src/arch/ppc/init/Config.lb new file mode 100644 index 0000000000..fcda384bb6 --- /dev/null +++ b/src/arch/ppc/init/Config.lb @@ -0,0 +1,2 @@ +init crt0.S.lb +#initobject stuff.o diff --git a/src/arch/ppc/init/crt0.S.lb b/src/arch/ppc/init/crt0.S.lb new file mode 100644 index 0000000000..2f26f0ea34 --- /dev/null +++ b/src/arch/ppc/init/crt0.S.lb @@ -0,0 +1,66 @@ +/* $Id$ */ +/* Copyright 2000 AG Electronics Ltd. */ +/* This code is distributed without warranty under the GPL v2 (see COPYING) */ + +#define ASM +#include "ppcreg.h" +#include <ppc_asm.tmpl> + +.section ".rom.data", "a", @progbits +.section ".rom.text", "ax", @progbits + +.globl _start +.type _start, @function +.globl __bss_end +.globl __start_address_check + + /* + * Locate at hreset vector + */ + .space (0x100) + +_start: + b system_reset + + /* + * Space for exception table + */ + .space (0x3000) + +system_reset: + +%%EARLY_INIT%% + +start_payload: + /* + * Relocate payload (text & data) to ram + */ + lis r3, _liseg@ha + addi r3, r3, _liseg@l + lis r4, _iseg@ha + addi r4, r4, _iseg@l + + /* + * Skip if they're the same + */ + cmp 0, 0, r3, r4 + beq 1f + + lis r7, _eliseg@ha + addi r7, r7, _eliseg@l + +2: + lwzx r5, 0, r3 + stwx r5, 0, r4 + addi r3, r3, 4 + addi r4, r4, 4 + cmp 0, 0, r3, r7 + ble 2b + +1: + /* + * Start payload + */ + b _iseg + +%%NORTHBRIDGE_INIT%% |