[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 / myloader.c

diff --git a/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom/myloader.c b/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom/myloader.c
new file mode 100644 (file)
index 0000000..972de4e
--- /dev/null
+++ b/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom/myloader.c
@@ -0,0 +1,75 @@
+/*
+ *  $Id$
+ *
+ *  Compex's MyLoader 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 <asm/byteorder.h>
+
+#include <adm5120_defs.h>
+#include <prom/myloader.h>
+#include "prom_read.h"
+
+#define SYS_PARAMS_ADDR                KSEG1ADDR(ADM5120_SRAM0_BASE+0x0F000)
+#define BOARD_PARAMS_ADDR      KSEG1ADDR(ADM5120_SRAM0_BASE+0x0F800)
+#define PART_TABLE_ADDR                KSEG1ADDR(ADM5120_SRAM0_BASE+0x10000)
+
+static int myloader_found = 0;
+
+struct myloader_info myloader_info;
+
+int __init myloader_present(void)
+{
+       struct mylo_system_params *sysp;
+       struct mylo_board_params *boardp;
+       struct mylo_partition_table *parts;
+
+       if (myloader_found)
+               goto out;
+
+       sysp = (struct mylo_system_params *)(SYS_PARAMS_ADDR);
+       boardp = (struct mylo_board_params *)(BOARD_PARAMS_ADDR);
+       parts = (struct mylo_partition_table *)(PART_TABLE_ADDR);
+
+       /* Check for some magic numbers */
+       if ((le32_to_cpu(sysp->magic) != MYLO_MAGIC_SYS_PARAMS) ||
+          (le32_to_cpu(boardp->magic) != MYLO_MAGIC_BOARD_PARAMS) ||
+          (le32_to_cpu(parts->magic) != MYLO_MAGIC_PARTITIONS))
+               goto out;
+
+       myloader_info.vid = le32_to_cpu(sysp->vid);
+       myloader_info.did = le32_to_cpu(sysp->did);
+       myloader_info.svid = le32_to_cpu(sysp->svid);
+       myloader_info.sdid = le32_to_cpu(sysp->sdid);
+
+       myloader_found = 1;
+
+out:
+       return myloader_found;
+}