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-rw-r--r--qemu/roms/openbios/arch/ppc/mol/main.c370
1 files changed, 0 insertions, 370 deletions
diff --git a/qemu/roms/openbios/arch/ppc/mol/main.c b/qemu/roms/openbios/arch/ppc/mol/main.c
deleted file mode 100644
index f6ed934d0..000000000
--- a/qemu/roms/openbios/arch/ppc/mol/main.c
+++ /dev/null
@@ -1,370 +0,0 @@
-/*
- * Creation Date: <2002/10/02 22:24:24 samuel>
- * Time-stamp: <2004/03/27 01:57:55 samuel>
- *
- * <main.c>
- *
- *
- *
- * Copyright (C) 2002, 2003, 2004 Samuel Rydh (samuel@ibrium.se)
- *
- * 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
- *
- */
-
-
-#include "config.h"
-#include "libopenbios/bindings.h"
-#include "libopenbios/elfload.h"
-#include "arch/common/nvram.h"
-#include "libc/diskio.h"
-#include "libc/vsprintf.h"
-#include "mol/mol.h"
-#include "libopenbios/ofmem.h"
-#include "osi_calls.h"
-#include "ablk_sh.h"
-#include "boothelper_sh.h"
-
-
-static void patch_newworld_rom( char *start, size_t size );
-static void newworld_timer_hack( char *start, size_t size );
-
-static void
-transfer_control_to_elf( unsigned long entry )
-{
- extern void call_elf( unsigned long entry );
- printk("Starting ELF boot loader\n");
- call_elf( entry );
-
- fatal_error("call_elf returned unexpectedly\n");
-}
-
-static int
-load_elf_rom( unsigned long *entry, int fd )
-{
- int i, lszz_offs, elf_offs;
- char buf[128], *addr;
- Elf_ehdr ehdr;
- Elf_phdr *phdr;
- size_t s;
-
- printk("Loading '%s' from '%s'\n", get_file_path(fd),
- get_volume_name(fd) );
-
- /* the ELF-image (usually) starts at offset 0x4000 */
- if( (elf_offs=find_elf(fd)) < 0 ) {
- printk("----> %s is not an ELF image\n", buf );
- exit(1);
- }
- if( !(phdr=elf_readhdrs(fd, elf_offs, &ehdr)) )
- fatal_error("elf_readhdrs failed\n");
-
- *entry = ehdr.e_entry;
-
- /* load segments. Compressed ROM-image assumed to be located immediately
- * after the last segment */
- lszz_offs = elf_offs;
- for( i=0; i<ehdr.e_phnum; i++ ) {
- /* p_memsz, p_flags */
- s = MIN( phdr[i].p_filesz, phdr[i].p_memsz );
- seek_io( fd, elf_offs + phdr[i].p_offset );
-
- /* printk("filesz: %08lX memsz: %08lX p_offset: %08lX p_vaddr %08lX\n",
- phdr[i].p_filesz, phdr[i].p_memsz, phdr[i].p_offset,
- phdr[i].p_vaddr ); */
-
- if( phdr[i].p_vaddr != phdr[i].p_paddr )
- printk("WARNING: ELF segment virtual addr != physical addr\n");
- lszz_offs = MAX( lszz_offs, elf_offs + phdr[i].p_offset + phdr[i].p_filesz );
- if( !s )
- continue;
- if( ofmem_claim( phdr[i].p_vaddr, phdr[i].p_memsz, 0 ) == -1 )
- fatal_error("Claim failed!\n");
-
- addr = (char*)phdr[i].p_vaddr;
- if( read_io(fd, addr, s) != s )
- fatal_error("read failed\n");
-
- /* patch CODE segment */
- if( *entry >= phdr[i].p_vaddr && *entry < phdr[i].p_vaddr + s ) {
- patch_newworld_rom( (char*)phdr[i].p_vaddr, s );
- newworld_timer_hack( (char*)phdr[i].p_vaddr, s );
- }
- flush_icache_range( addr, addr+s );
-
- /* printk("ELF ROM-section loaded at %08lX (size %08lX)\n",
- (unsigned long)phdr[i].p_vaddr, (unsigned long)phdr[i].p_memsz );*/
- }
- free( phdr );
- return lszz_offs;
-}
-
-
-/************************************************************************/
-/* newworld ROM loading */
-/************************************************************************/
-
-#define ROM_BASE 0x1100000 /* where we decide to put things */
-
-/* fix bug present in the 2.4 and the 3.0 Apple ROM */
-static void
-patch_newworld_rom( char *start, size_t size )
-{
- int s;
- unsigned long mark[] = { 0x7c7d1b78, /* mr r29,r3 */
- 0x7c9c2378, /* mr r28,r4 */
- 0x7cc33378, /* mr r3,r6 */
- 0x7c864214, /* add r4,r6,r8 <------ BUG -- */
- 0x80b10000, /* lwz r5,0(r17) */
- 0x38a500e8 }; /* addi r5,r5,232 */
-
- /* Correcting add r4,r6,r8 ----> addi r4,r6,8 */
- for( s=0; s<size-sizeof(mark); s+=4 )
- if( memcmp( start+s, mark, sizeof(mark)) == 0 ) {
- printk("FIXING ROM BUG @ %X!\n", s+12);
- ((unsigned long*)(start+s))[3] = 0x38860008; /* addi r4,r6,8 */
- }
-}
-
-/* This hack is only needed on machines with a timebase slower than 12.5 MHz
- * (50 MHz bus frequency). Typically only old, accelerated machines fall
- * into this category. The cause of the problem is an overflow in Apple's
- * calibration routine.
- */
-static void
-newworld_timer_hack( char *start, size_t size )
-{
- int s;
- unsigned long mark[] = { 0x7d0000a6, 0x5507045e, 0x7ce00124, 0x4c00012c,
- 0x38e00000, 0x3c80000f, 0x6084ffff, 0x98830c00,
- 0x7c0006ac, 0x98830a00, 0x7c0006ac, 0x7c9603a6,
- 0x4c00012c, 0x7cb602a6, 0x2c050000, 0x4181fff8,
- 0x7c0004ac, 0x88830a00, 0x7c0006ac, 0x88a30800,
- 0x7c0006ac, 0x88c30a00, 0x7c0006ac, 0x7c043040,
- 0x40a2ffe4, 0x5085442e, 0x7ca500d0, 0x54a5043e,
- 0x7c053840, 0x7ca72b78, 0x4082ff9c, 0x7ca32b78,
- 0x7d000124, 0x4c00012c, 0x4e800020
- };
-
- /* return #via ticks corresponding to 0xfffff DEC ticks (VIA frequency == 47/60 MHz) */
- for( s=0; s < size-sizeof(mark); s+=4 ) {
- if( !memcmp( start+s, mark, sizeof(mark)) ) {
- extern char timer_calib_start[], timer_calib_end[];
- extern unsigned long nw_dec_calibration;
- int hz = OSI_UsecsToMticks(1000);
- nw_dec_calibration = OSI_MticksToUsecs(0xfffff*47)/60;
- memcpy( start + s, timer_calib_start, timer_calib_end - timer_calib_start );
-
- printk("Timer calibration fix: %d.%02d MHz [%ld]\n",
- hz/1000, (hz/10)%100, nw_dec_calibration );
- break;
- }
- }
-}
-
-static unsigned long
-load_newworld_rom( int fd )
-{
- int lszz_offs, lszz_size;
- unsigned long entry, data[2];
- phandle_t ph;
-
- lszz_offs = load_elf_rom( &entry, fd );
- seek_io( fd, -1 );
- lszz_size = tell(fd) - lszz_offs;
- seek_io( fd, lszz_offs );
-
- /* printk("Compressed ROM image: offset %08X, size %08X loaded at %08x\n",
- lszz_offs, lszz_size, ROM_BASE ); */
-
- if( ofmem_claim(ROM_BASE, lszz_size, 0) == -1 )
- fatal_error("Claim failure (lszz)!\n");
-
- read_io( fd, (char*)ROM_BASE, lszz_size );
-
- /* Fix the /rom/macos/AAPL,toolbox-image,lzss property (phys, size) */
-#if 0
- if( (ph=prom_create_node("/rom/macos/")) == -1 )
- fatal_error("Failed creating /rom/macos/");
-#else
- ph = find_dev("/rom/macos");
-#endif
- data[0] = ROM_BASE;
- data[1] = lszz_size;
- set_property( ph, "AAPL,toolbox-image,lzss", (char*)data, sizeof(data) );
-
- /* The 7.8 rom (MacOS 9.2) uses AAPL,toolbox-parcels instead of
- * AAPL,toolbox-image,lzss. It probably doesn't hurt to have it
- * always present (we don't have an easy way to determine ROM version...)
- */
- set_property( ph, "AAPL,toolbox-parcels", (char*)data, sizeof(data) );
- return entry;
-}
-
-static int
-search_nwrom( int fd, int fast )
-{
- char *s, buf[128];
- int found = 0;
-
- if( fast ) {
- int ind;
- found = !reopen( fd, "\\\\:tbxi" );
- for( ind=0; !found && (s=BootHGetStrResInd("macos_rompath", buf, sizeof(buf), ind++, 0)) ; )
- found = !reopen( fd, s );
- for( ind=0; !found && (s=BootHGetStrResInd("macos_rompath_", buf, sizeof(buf), ind++, 0)) ; )
- found = !reopen( fd, s );
- } else {
- printk("Searching %s for a 'Mac OS ROM' file\n", get_volume_name(fd) );
- if( !(found=reopen_nwrom(fd)) ) {
- printk(" \n**** HINT ***************************************************\n");
- printk("* The booting can be speeded up by adding the line\n");
- printk("* macos_rompath: '%s'\n", get_file_path(fd) );
- printk("* to the /etc/mol/molrc.macos (recommended).\n");
- printk("*************************************************************\n \n");
- }
- }
- return found;
-}
-
-static void
-encode_bootpath( const char *spec, const char *args )
-{
- phandle_t chosen_ph = find_dev("/chosen");
- set_property( chosen_ph, "bootpath", spec, strlen(spec)+1 );
- set_property( chosen_ph, "bootargs", args, strlen(args)+1 );
-}
-
-static char *
-newworld_load( const char *node_path, const char *spec, int do_search )
-{
- char *p, *entry, buf[80];
- int fd, len;
-
- if( (fd=open_io(spec)) == -1 )
- return NULL;
-
- if( !search_nwrom(fd, do_search) ) {
- close_io(fd);
- return NULL;
- }
- printk("Boot Disk: %s [%s]\n", spec, get_fstype(fd) );
-
- entry = (char*)load_newworld_rom( fd );
-
-#if 1
- PUSH_ih( get_ih_from_fd(fd) );
- fword("get-instance-path");
- len = POP();
- p = (char*)POP();
- buf[0] = 0;
- if( len < sizeof(buf) ) {
- memcpy( buf, p, len );
- buf[len] =0;
- }
- strcat( buf, "/x@:" );
- printk("boot_path: %s\n", buf );
- encode_bootpath( buf, "" );
-#endif
- close_io( fd );
- return entry;
-}
-
-static void
-newworld_startup( void )
-{
- int i, j, bootunit, type, fd;
- ablk_disk_info_t info;
- char *entry = NULL;
- char spec[80];
- phandle_t ph;
-
- char path[]="/pci/pci-bridge/mol-blk";
- if( !(ph=find_dev(path)) )
- fatal_error("MOLBlockDriver node not found\n");
-
- /* user-specified newworld ROMs take precedence */
- if( (fd=open_io("pseudo:,nwrom")) >= 0 ) {
- entry = (char*)load_newworld_rom( fd );
- close_io( fd );
- }
-
- /* determine boot volume */
- for( bootunit=-1, type=0; bootunit==-1 && type<3 ; type++ ) {
- for( i=0; !OSI_ABlkDiskInfo(0, i, &info) ; i++ ) {
- if( type<=1 && !(info.flags & ABLK_BOOT_HINT) )
- continue;
- if( type>1 && (info.flags & ABLK_BOOT_HINT) )
- continue;
-
- for( j=0; !entry && j<32; j++ ) {
- snprintf( spec, sizeof(spec), "%s/disk@%x:%d",
- path, i, j );
- entry = newworld_load( path, spec, (!type || type==2) );
- }
- if( entry ) {
- bootunit = i;
- break;
- }
- }
- }
-
- if( entry ) {
- OSI_ABlkBlessDisk( 0 /*channel*/, bootunit );
-
- update_nvram();
- transfer_control_to_elf( (unsigned long)entry );
- /* won't come here */
- return;
- }
-
- printk("\n--- No bootable disk was found! -----------------------------\n");
- printk("If this is an oldworld machine, try booting from the MacOS\n");
- printk("install CD and install MacOS from within MOL.\n");
- printk("-------------------------------------------------------------\n");
- exit(1);
-}
-
-
-/************************************************************************/
-/* yaboot booting */
-/************************************************************************/
-
-static void
-yaboot_startup( void )
-{
- const char *paths[] = { "pseudo:,ofclient", "pseudo:,yaboot", NULL };
- unsigned long entry;
- int i, fd;
-
- for( i=0; paths[i]; i++ ) {
- if( (fd=open_io(paths[i])) == -1 )
- continue;
- (void) load_elf_rom( &entry, fd );
- close_io( fd );
- encode_bootpath( paths[i], "" );
-
- update_nvram();
- transfer_control_to_elf( entry );
- /* won't come here */
- }
- printk("*** Boot failure! No secondary bootloader specified ***\n");
- exit(1);
-}
-
-
-/************************************************************************/
-/* entry */
-/************************************************************************/
-
-void
-boot( void )
-{
- fword("update-chosen");
- if( find_dev("/mol-platform") )
- yaboot_startup();
- else
- newworld_startup();
-}