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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/types.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/string.h>
#include <asm/bootinfo.h>
#include <asm/addrspace.h>
#include <asm/byteorder.h>
#include <asm/mach-adm5120/adm5120_defs.h>
#include <prom/myloader.h>
#include "prom_read.h"
#define SYS_PARAMS_ADDR KSEG1ADDR(ADM5120_SRAM0_BASE+0x0F000)
#define BOARD_PARAMS_ADDR KSEG1ADDR(ADM5120_SRAM0_BASE+0x0F800)
#define PART_TABLE_ADDR KSEG1ADDR(ADM5120_SRAM0_BASE+0x10000)
static int myloader_found;
struct myloader_info myloader_info;
int __init myloader_present(void)
{
struct mylo_system_params *sysp;
struct mylo_board_params *boardp;
struct mylo_partition_table *parts;
int i;
if (myloader_found)
goto out;
sysp = (struct mylo_system_params *)(SYS_PARAMS_ADDR);
boardp = (struct mylo_board_params *)(BOARD_PARAMS_ADDR);
parts = (struct mylo_partition_table *)(PART_TABLE_ADDR);
/* Check for some magic numbers */
if ((le32_to_cpu(sysp->magic) != MYLO_MAGIC_SYS_PARAMS) ||
(le32_to_cpu(boardp->magic) != MYLO_MAGIC_BOARD_PARAMS) ||
(le32_to_cpu(parts->magic) != MYLO_MAGIC_PARTITIONS))
goto out;
myloader_info.vid = le32_to_cpu(sysp->vid);
myloader_info.did = le32_to_cpu(sysp->did);
myloader_info.svid = le32_to_cpu(sysp->svid);
myloader_info.sdid = le32_to_cpu(sysp->sdid);
for (i = 0; i < MYLO_ETHADDR_COUNT; i++) {
int j;
for (j = 0; j < 6; j++)
myloader_info.macs[i][j] = boardp->addr[i].mac[j];
}
myloader_found = 1;
out:
return myloader_found;
}
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