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

SVN-Revision: 7916

1 files changed, 142 insertions, 0 deletions

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
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;
+}