[adm5120] refactor kernel code (part 1), mark it as broken now

[openwrt/svn-archive/archive.git] / target / linux / adm5120-2.6 / files / arch / mips / adm5120 / prom / routerboot.c

diff --git a/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom/routerboot.c b/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom/routerboot.c
new file mode 100644 (file)
index 0000000..ad28353
--- /dev/null
+++ b/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom/routerboot.c
@@ -0,0 +1,142 @@
+/*
+ *  $Id$
+ *
+ *  Mikrotik's RouterBOOT specific prom routines
+ *
+ *  Copyright (C) 2007 OpenWrt.org
+ *  Copyright (C) 2007 Gabor Juhos <juhosg@freemail.hu>
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the
+ *  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA  02110-1301, USA.
+ */
+
+#include <linux/types.h>
+#include <linux/autoconf.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/string.h>
+
+#include <asm/bootinfo.h>
+#include <asm/addrspace.h>
+
+#include <adm5120_defs.h>
+#include <prom/routerboot.h>
+#include "prom_read.h"
+
+static struct rb_hard_settings rb_hs;
+static int rb_found = 0;
+
+static int __init routerboot_load_hs(u8 *buf, u16 buflen)
+{
+       u16 id,len;
+       u8 *mac;
+       int i,j;
+
+       memset(&rb_hs, 0, sizeof(rb_hs));
+
+       if (buflen < 4)
+               return -1;
+
+       if (prom_read_le32(buf) != RB_MAGIC_HARD)
+               return -1;
+
+       /* skip magic value */
+       buf += 4;
+       buflen -= 4;
+
+       while (buflen > 2) {
+               id = prom_read_le16(buf);
+               buf += 2;
+               buflen -= 2;
+               if (id == RB_ID_TERMINATOR || buflen < 2)
+                       break;
+
+               len = prom_read_le16(buf);
+               buf += 2;
+               buflen -= 2;
+
+               if (buflen < len)
+                       break;
+
+               switch (id) {
+               case RB_ID_BIOS_VERSION:
+                       rb_hs.bios_ver = (char *)buf;
+                       break;
+               case RB_ID_BOARD_NAME:
+                       rb_hs.name = (char *)buf;
+                       break;
+               case RB_ID_MEMORY_SIZE:
+                       rb_hs.mem_size = prom_read_le32(buf);
+                       break;
+               case RB_ID_MAC_ADDRESS_COUNT:
+                       rb_hs.mac_count = prom_read_le32(buf);
+                       break;
+               case RB_ID_MAC_ADDRESS_PACK:
+                       rb_hs.mac_count = len/RB_MAC_SIZE;
+                       if (rb_hs.mac_count > RB_MAX_MAC_COUNT)
+                               rb_hs.mac_count = RB_MAX_MAC_COUNT;
+                       mac = buf;
+                       for (i=0; i < rb_hs.mac_count; i++) {
+                               for (j=0; j < RB_MAC_SIZE; j++)
+                                       rb_hs.macs[i][j] = mac[j];
+                               mac += RB_MAC_SIZE;
+                       }
+                       break;
+               }
+
+               buf += len;
+               buflen -= len;
+
+       }
+
+       return 0;
+}
+
+#define RB_BS_OFFS     0x14
+#define RB_OFFS_MAX    (128*1024)
+
+int __init routerboot_present(void)
+{
+       struct rb_bios_settings *bs;
+       u8 *base;
+       u32 off,len;
+
+       if (rb_found)
+               goto out;
+
+       base = (u8 *)KSEG1ADDR(ADM5120_SRAM0_BASE);
+       bs = (struct rb_bios_settings *)(base + RB_BS_OFFS);
+
+       off = prom_read_le32(&bs->hs_offs);
+       len = prom_read_le32(&bs->hs_size);
+       if (off > RB_OFFS_MAX)
+               goto out;
+
+       if (routerboot_load_hs(base+off, len) != 0)
+               goto out;
+
+       rb_found = 1;
+
+out:
+       return rb_found;
+}
+
+char *routerboot_get_boardname(void)
+{
+       if (rb_found == 0)
+               return NULL;
+
+       return rb_hs.name;
+}