69 lines
1.8 KiB
C
69 lines
1.8 KiB
C
/*
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* Compex's MyLoader specific prom routines
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*
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* Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*
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*/
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/string.h>
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#include <asm/bootinfo.h>
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#include <asm/addrspace.h>
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#include <asm/byteorder.h>
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#include <asm/mach-adm5120/adm5120_defs.h>
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#include <prom/myloader.h>
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#include "prom_read.h"
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#define SYS_PARAMS_ADDR KSEG1ADDR(ADM5120_SRAM0_BASE+0x0F000)
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#define BOARD_PARAMS_ADDR KSEG1ADDR(ADM5120_SRAM0_BASE+0x0F800)
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#define PART_TABLE_ADDR KSEG1ADDR(ADM5120_SRAM0_BASE+0x10000)
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static int myloader_found;
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struct myloader_info myloader_info;
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int __init myloader_present(void)
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{
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struct mylo_system_params *sysp;
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struct mylo_board_params *boardp;
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struct mylo_partition_table *parts;
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int i;
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if (myloader_found)
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goto out;
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sysp = (struct mylo_system_params *)(SYS_PARAMS_ADDR);
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boardp = (struct mylo_board_params *)(BOARD_PARAMS_ADDR);
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parts = (struct mylo_partition_table *)(PART_TABLE_ADDR);
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/* Check for some magic numbers */
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if ((le32_to_cpu(sysp->magic) != MYLO_MAGIC_SYS_PARAMS) ||
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(le32_to_cpu(boardp->magic) != MYLO_MAGIC_BOARD_PARAMS) ||
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(le32_to_cpu(parts->magic) != MYLO_MAGIC_PARTITIONS))
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goto out;
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myloader_info.vid = le32_to_cpu(sysp->vid);
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myloader_info.did = le32_to_cpu(sysp->did);
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myloader_info.svid = le32_to_cpu(sysp->svid);
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myloader_info.sdid = le32_to_cpu(sysp->sdid);
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for (i = 0; i < MYLO_ETHADDR_COUNT; i++) {
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int j;
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for (j = 0; j < 6; j++)
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myloader_info.macs[i][j] = boardp->addr[i].mac[j];
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}
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myloader_found = 1;
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out:
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return myloader_found;
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}
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