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/*
* 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/elf_load.h"
#include "arch/common/nvram.h"
#include "packages/nvram.h"
#include "libc/diskio.h"
#include "libc/vsprintf.h"
#include "kernel.h"
#include "drivers/drivers.h"
#include "libopenbios/ofmem.h"
#define NO_QEMU_PROTOS
#include "arch/common/fw_cfg.h"
//#define DEBUG_QEMU
#ifdef DEBUG_QEMU
#define SUBSYS_DPRINTF(subsys, fmt, args...) \
do { printk("%s - %s: " fmt, subsys, __func__ , ##args); } while (0)
#else
#define SUBSYS_DPRINTF(subsys, fmt, args...) \
do { } while (0)
#endif
#define CHRP_DPRINTF(fmt, args...) SUBSYS_DPRINTF("CHRP", fmt, ##args)
#define ELF_DPRINTF(fmt, args...) SUBSYS_DPRINTF("ELF", fmt, ##args)
#define NEWWORLD_DPRINTF(fmt, args...) SUBSYS_DPRINTF("NEWWORLD", fmt, ##args)
static void check_preloaded_kernel(void)
{
unsigned long kernel_image, kernel_size;
unsigned long initrd_image, initrd_size;
const char * kernel_cmdline;
kernel_size = fw_cfg_read_i32(FW_CFG_KERNEL_SIZE);
if (kernel_size) {
kernel_image = fw_cfg_read_i32(FW_CFG_KERNEL_ADDR);
kernel_cmdline = (const char *)(uintptr_t) fw_cfg_read_i32(FW_CFG_KERNEL_CMDLINE);
initrd_image = fw_cfg_read_i32(FW_CFG_INITRD_ADDR);
initrd_size = fw_cfg_read_i32(FW_CFG_INITRD_SIZE);
printk("[ppc] Kernel already loaded (0x%8.8lx + 0x%8.8lx) "
"(initrd 0x%8.8lx + 0x%8.8lx)\n",
kernel_image, kernel_size, initrd_image, initrd_size);
if (kernel_cmdline) {
phandle_t ph;
printk("[ppc] Kernel command line: %s\n", kernel_cmdline);
ph = find_dev("/chosen");
set_property(ph, "bootargs", strdup(kernel_cmdline), strlen(kernel_cmdline) + 1);
}
call_elf(initrd_image, initrd_size, kernel_image);
}
}
/************************************************************************/
/* entry */
/************************************************************************/
void
boot( void )
{
uint16_t boot_device = fw_cfg_read_i16(FW_CFG_BOOT_DEVICE);
fword("update-chosen");
if (boot_device == 'm') {
check_preloaded_kernel();
}
if (is_apple()) {
update_nvram();
}
}
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