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openwrt-xburst/target/linux/generic/files/arch/mips/fw/myloader/myloader.c

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/*
* Compex's MyLoader specific prom routines
*
* Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/string.h>
#include <asm/addrspace.h>
#include <asm/fw/myloader/myloader.h>
#define SYS_PARAMS_ADDR KSEG1ADDR(0x80000800)
#define BOARD_PARAMS_ADDR KSEG1ADDR(0x80000A00)
#define PART_TABLE_ADDR KSEG1ADDR(0x80000C00)
#define BOOT_PARAMS_ADDR KSEG1ADDR(0x80000E00)
static struct myloader_info myloader_info __initdata;
static int myloader_found __initdata;
struct myloader_info * __init myloader_get_info(void)
{
struct mylo_system_params *sysp;
struct mylo_board_params *boardp;
struct mylo_partition_table *parts;
if (myloader_found)
return &myloader_info;
sysp = (struct mylo_system_params *)(SYS_PARAMS_ADDR);
boardp = (struct mylo_board_params *)(BOARD_PARAMS_ADDR);
parts = (struct mylo_partition_table *)(PART_TABLE_ADDR);
printk(KERN_DEBUG "MyLoader: sysp=%08x, boardp=%08x, parts=%08x\n",
sysp->magic, boardp->magic, parts->magic);
/* Check for some magic numbers */
if (sysp->magic != MYLO_MAGIC_SYS_PARAMS ||
boardp->magic != MYLO_MAGIC_BOARD_PARAMS ||
le32_to_cpu(parts->magic) != MYLO_MAGIC_PARTITIONS)
return NULL;
printk(KERN_DEBUG "MyLoader: id=%04x:%04x, sub_id=%04x:%04x\n",
sysp->vid, sysp->did, sysp->svid, sysp->sdid);
myloader_info.vid = sysp->vid;
myloader_info.did = sysp->did;
myloader_info.svid = sysp->svid;
myloader_info.sdid = sysp->sdid;
memcpy(myloader_info.macs, boardp->addr, sizeof(myloader_info.macs));
myloader_found = 1;
return &myloader_info;
}