/* * PS3 bootwrapper entry. * * Copyright (C) 2007 Sony Computer Entertainment Inc. * Copyright 2007 Sony Corp. * * 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; version 2 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #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 |