1/* 2 * Compex's MyLoader specific prom routines 3 * 4 * Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org> 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License version 2 as published 8 * by the Free Software Foundation. 9 * 10 */ 11 12#include <linux/kernel.h> 13#include <linux/init.h> 14#include <linux/types.h> 15#include <linux/string.h> 16 17#include <asm/addrspace.h> 18#include <asm/fw/myloader/myloader.h> 19 20#define SYS_PARAMS_ADDR KSEG1ADDR(0x80000800) 21#define BOARD_PARAMS_ADDR KSEG1ADDR(0x80000A00) 22#define PART_TABLE_ADDR KSEG1ADDR(0x80000C00) 23#define BOOT_PARAMS_ADDR KSEG1ADDR(0x80000E00) 24 25static struct myloader_info myloader_info __initdata; 26static int myloader_found __initdata; 27 28struct myloader_info * __init myloader_get_info(void) 29{ 30 struct mylo_system_params *sysp; 31 struct mylo_board_params *boardp; 32 struct mylo_partition_table *parts; 33 34 if (myloader_found) 35 return &myloader_info; 36 37 sysp = (struct mylo_system_params *)(SYS_PARAMS_ADDR); 38 boardp = (struct mylo_board_params *)(BOARD_PARAMS_ADDR); 39 parts = (struct mylo_partition_table *)(PART_TABLE_ADDR); 40 41 printk(KERN_DEBUG "MyLoader: sysp=%08x, boardp=%08x, parts=%08x\n", 42 sysp->magic, boardp->magic, parts->magic); 43 44 /* Check for some magic numbers */ 45 if (sysp->magic != MYLO_MAGIC_SYS_PARAMS || 46 boardp->magic != MYLO_MAGIC_BOARD_PARAMS || 47 le32_to_cpu(parts->magic) != MYLO_MAGIC_PARTITIONS) 48 return NULL; 49 50 printk(KERN_DEBUG "MyLoader: id=%04x:%04x, sub_id=%04x:%04x\n", 51 sysp->vid, sysp->did, sysp->svid, sysp->sdid); 52 53 myloader_info.vid = sysp->vid; 54 myloader_info.did = sysp->did; 55 myloader_info.svid = sysp->svid; 56 myloader_info.sdid = sysp->sdid; 57 58 memcpy(myloader_info.macs, boardp->addr, sizeof(myloader_info.macs)); 59 60 myloader_found = 1; 61 62 return &myloader_info; 63} 64