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openwrt-xburst/target/linux/rdc/files-2.6.30/arch/x86/mach-rdc321x/platform.c
florian d6a7552aad [rdc] rework board detection
Rework board detection, separate board specific code into its own file. As a
result we also change the way rdc images are generated.
Support for board which required binary tools, like AMIT are dropped. Patch by
Bernhard Loos.

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@20294 3c298f89-4303-0410-b956-a3cf2f4a3e73
2010-03-18 23:35:21 +00:00

121 lines
3.0 KiB
C

/*
* Generic RDC321x platform devices
*
* Copyright (C) 2007-2009 OpenWrt.org
* Copyright (C) 2007 Florian Fainelli <florian@openwrt.org>
* Copyright (C) 2008-2009 Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us>
*
* 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/init.h>
//#include <linux/kernel.h>
//#include <linux/list.h>
//#include <linux/device.h>
#include <linux/platform_device.h>
//#include <linux/version.h>
//#include <linux/input.h>
#include <linux/mtd/map.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/physmap.h>
#include <linux/root_dev.h>
#include <asm/rdc_boards.h>
static struct rdc_platform_data rdcplat_data;
/* LEDS */
static struct platform_device rdc321x_leds = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &rdcplat_data.led_data,
}
};
/* Button */
static struct platform_device rdc321x_buttons = {
.name = "gpio-buttons",
.id = -1,
.dev = {
.platform_data = &rdcplat_data.button_data,
}
};
static __initdata struct platform_device *rdc321x_devs[] = {
&rdc321x_leds,
&rdc321x_buttons,
};
const char *__initdata boards[] = {
"Sitecom",
"AR525W",
"Bifferboard",
"R8610",
0
};
static struct map_info rdc_map_info = {
.name = "rdc_flash",
.size = 0x800000, //8MB
.phys = 0xFF800000, //(u32) -rdc_map_info.size;
.bankwidth = 2
};
static int __init rdc_board_setup(void)
{
struct mtd_partition *partitions;
int count, res;
struct mtd_info *mtdinfo;
simple_map_init(&rdc_map_info);
while (true) {
rdc_map_info.virt = ioremap(rdc_map_info.phys, rdc_map_info.size);
if (rdc_map_info.virt == NULL)
continue;
mtdinfo = do_map_probe("cfi_probe", &rdc_map_info);
if (mtdinfo == NULL)
mtdinfo = do_map_probe("jedec_probe", &rdc_map_info);
if (mtdinfo != NULL)
break;
iounmap(rdc_map_info.virt);
if ((rdc_map_info.size >>= 1) < 0x100000) //1MB
panic("RDC321x: Could not find start of flash!");
rdc_map_info.phys = (u32) -rdc_map_info.size;
}
count = parse_mtd_partitions(mtdinfo, boards, &partitions, (unsigned long) &rdcplat_data);
if (count <= 0) {
panic("RDC321x: can't identify board type");
return -ENOSYS;
}
ROOT_DEV = 0;
res = add_mtd_partitions(mtdinfo, partitions, count);
if (res)
return res;
return platform_add_devices(rdc321x_devs, ARRAY_SIZE(rdc321x_devs));
}
late_initcall(rdc_board_setup);