4 * Mikrotik's RouterBOOT specific prom routines
6 * Copyright (C) 2007 OpenWrt.org
7 * Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org>
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License version 2 as published
11 * by the Free Software Foundation.
15 #include <linux/types.h>
16 #include <linux/autoconf.h>
17 #include <linux/kernel.h>
18 #include <linux/init.h>
19 #include <linux/string.h>
20 #include <linux/module.h>
22 #include <asm/bootinfo.h>
23 #include <asm/addrspace.h>
25 #include <adm5120_defs.h>
26 #include <prom/routerboot.h>
27 #include "prom_read.h"
29 struct rb_hard_settings rb_hs;
32 static int __init routerboot_load_hs(u8 *buf, u16 buflen)
36 memset(&rb_hs, 0, sizeof(rb_hs));
41 if (prom_read_le32(buf) != RB_MAGIC_HARD)
44 /* skip magic value */
49 id = prom_read_le16(buf);
52 if (id == RB_ID_TERMINATOR || buflen < 2)
55 len = prom_read_le16(buf);
63 case RB_ID_BIOS_VERSION:
64 rb_hs.bios_ver = (char *)buf;
66 case RB_ID_BOARD_NAME:
67 rb_hs.name = (char *)buf;
69 case RB_ID_MEMORY_SIZE:
70 rb_hs.mem_size = prom_read_le32(buf);
72 case RB_ID_MAC_ADDRESS_COUNT:
73 rb_hs.mac_count = prom_read_le32(buf);
75 case RB_ID_MAC_ADDRESS_PACK:
76 if ((len / RB_MAC_SIZE) > 0)
89 #define RB_BS_OFFS 0x14
90 #define RB_OFFS_MAX (128*1024)
92 int __init routerboot_present(void)
94 struct rb_bios_settings *bs;
101 base = (u8 *)KSEG1ADDR(ADM5120_SRAM0_BASE);
102 bs = (struct rb_bios_settings *)(base + RB_BS_OFFS);
104 off = prom_read_le32(&bs->hs_offs);
105 len = prom_read_le32(&bs->hs_size);
106 if (off > RB_OFFS_MAX)
109 if (routerboot_load_hs(base+off, len) != 0)
118 char *routerboot_get_boardname(void)