mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
72 lines
1.4 KiB
72 lines
1.4 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
|
/* |
|
* PS3 bootwrapper entry. |
|
* |
|
* Copyright (C) 2007 Sony Computer Entertainment Inc. |
|
* Copyright 2007 Sony Corp. |
|
*/ |
|
|
|
#include "ppc_asm.h" |
|
|
|
.machine "ppc64" |
|
|
|
.text |
|
|
|
/* |
|
* __system_reset_overlay - The PS3 first stage entry. |
|
* |
|
* The bootwraper build script copies the 512 bytes at symbol |
|
* __system_reset_overlay to offset 0x100 of the rom image. This symbol |
|
* must occupy 512 or less bytes. |
|
* |
|
* The PS3 has a single processor with two threads. |
|
*/ |
|
|
|
.globl __system_reset_overlay |
|
__system_reset_overlay: |
|
|
|
/* Switch to 32-bit mode. */ |
|
|
|
mfmsr r9 |
|
clrldi r9,r9,1 |
|
mtmsrd r9 |
|
nop |
|
|
|
/* Get thread number in r3 and branch. */ |
|
|
|
mfspr r3, 0x88 |
|
cntlzw. r3, r3 |
|
beq 1f |
|
|
|
/* Secondary goes to __secondary_hold in kernel. */ |
|
|
|
li r4, 0x60 |
|
mtctr r4 |
|
bctr |
|
|
|
1: |
|
/* Primary delays then goes to _zimage_start in wrapper. */ |
|
|
|
or 31, 31, 31 /* db16cyc */ |
|
or 31, 31, 31 /* db16cyc */ |
|
|
|
lis r4, _zimage_start@ha |
|
addi r4, r4, _zimage_start@l |
|
mtctr r4 |
|
bctr |
|
|
|
. = __system_reset_overlay + 512 |
|
|
|
/* |
|
* __system_reset_kernel - Place holder for the kernel reset vector. |
|
* |
|
* The bootwrapper build script copies 512 bytes from offset 0x100 |
|
* of the rom image to the symbol __system_reset_kernel. At runtime |
|
* the bootwrapper program copies the 512 bytes at __system_reset_kernel |
|
* to ram address 0x100. This symbol must occupy 512 bytes. |
|
*/ |
|
|
|
.globl __system_reset_kernel |
|
__system_reset_kernel: |
|
|
|
. = __system_reset_kernel + 512
|
|
|