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
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version 2
12 * of the License, or (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the
21 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
22 * Boston, MA 02110-1301, USA.
25 #include <linux/types.h>
26 #include <linux/autoconf.h>
27 #include <linux/kernel.h>
28 #include <linux/init.h>
29 #include <linux/string.h>
30 #include <linux/module.h>
32 #include <asm/bootinfo.h>
33 #include <asm/addrspace.h>
35 #include <adm5120_defs.h>
36 #include <prom/routerboot.h>
37 #include "prom_read.h"
39 struct rb_hard_settings rb_hs;
42 static int __init routerboot_load_hs(u8 *buf, u16 buflen)
46 memset(&rb_hs, 0, sizeof(rb_hs));
51 if (prom_read_le32(buf) != RB_MAGIC_HARD)
54 /* skip magic value */
59 id = prom_read_le16(buf);
62 if (id == RB_ID_TERMINATOR || buflen < 2)
65 len = prom_read_le16(buf);
73 case RB_ID_BIOS_VERSION:
74 rb_hs.bios_ver = (char *)buf;
76 case RB_ID_BOARD_NAME:
77 rb_hs.name = (char *)buf;
79 case RB_ID_MEMORY_SIZE:
80 rb_hs.mem_size = prom_read_le32(buf);
82 case RB_ID_MAC_ADDRESS_COUNT:
83 rb_hs.mac_count = prom_read_le32(buf);
85 case RB_ID_MAC_ADDRESS_PACK:
86 if ((len / RB_MAC_SIZE) > 0)
99 #define RB_BS_OFFS 0x14
100 #define RB_OFFS_MAX (128*1024)
102 int __init routerboot_present(void)
104 struct rb_bios_settings *bs;
111 base = (u8 *)KSEG1ADDR(ADM5120_SRAM0_BASE);
112 bs = (struct rb_bios_settings *)(base + RB_BS_OFFS);
114 off = prom_read_le32(&bs->hs_offs);
115 len = prom_read_le32(&bs->hs_size);
116 if (off > RB_OFFS_MAX)
119 if (routerboot_load_hs(base+off, len) != 0)
128 char *routerboot_get_boardname(void)