c126808243
This also fixes the watchdog logic and abstracts the access to the RDC321x southbridge PCI configuration register space. Based on a patch by Bernhard Loos. SVN-Revision: 19972
282 lines
8.9 KiB
C
282 lines
8.9 KiB
C
/*
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* Generic RDC321x platform devices
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*
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* Copyright (C) 2007-2009 OpenWrt.org
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* Copyright (C) 2007 Florian Fainelli <florian@openwrt.org>
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* Copyright (C) 2008-2009 Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/list.h>
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#include <linux/device.h>
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#include <linux/platform_device.h>
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#include <linux/version.h>
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#include <linux/leds.h>
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#include <linux/gpio_keys.h>
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#include <linux/input.h>
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#include <linux/mtd/map.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/physmap.h>
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#include <linux/root_dev.h>
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#include <asm/rdc321x_gpio.h>
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/* Flash */
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#ifdef CONFIG_MTD_R8610
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#define CONFIG_MTD_RDC3210 1
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#elif defined CONFIG_MTD_RDC3210
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static struct resource rdc_flash_resource[] = {
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[0] = {
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.start = (u32)-CONFIG_MTD_RDC3210_SIZE,
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.end = (u32)-1,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct platform_device rdc_flash_device = {
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.name = "rdc321x-flash",
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.id = -1,
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.num_resources = ARRAY_SIZE(rdc_flash_resource),
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.resource = rdc_flash_resource,
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};
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#else
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static struct mtd_partition rdc_flash_parts[15];
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static struct resource rdc_flash_resource = {
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.end = (u32)-1,
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.flags = IORESOURCE_MEM,
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};
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static struct physmap_flash_data rdc_flash_data = {
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.parts = rdc_flash_parts,
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};
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static struct platform_device rdc_flash_device = {
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.name = "physmap-flash",
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.id = -1,
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.resource = &rdc_flash_resource,
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.num_resources = 1,
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.dev.platform_data = &rdc_flash_data,
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};
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#endif
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/* LEDS */
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static struct gpio_led default_leds[] = {
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{ .name = "rdc321x:dmz", .gpio = 1, .active_low = 1},
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};
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static struct gpio_led_platform_data rdc321x_led_data = {
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.num_leds = ARRAY_SIZE(default_leds),
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.leds = default_leds,
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};
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static struct platform_device rdc321x_leds = {
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.name = "leds-gpio",
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.id = -1,
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.dev = {
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.platform_data = &rdc321x_led_data,
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}
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};
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/* Button */
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static struct gpio_keys_button rdc321x_gpio_btn[] = {
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{
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.gpio = 0,
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.code = BTN_0,
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.desc = "Reset",
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.active_low = 1,
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}
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};
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static struct gpio_keys_platform_data rdc321x_gpio_btn_data = {
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.buttons = rdc321x_gpio_btn,
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.nbuttons = ARRAY_SIZE(rdc321x_gpio_btn),
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};
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static struct platform_device rdc321x_button = {
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.name = "gpio-keys",
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.id = -1,
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.dev = {
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.platform_data = &rdc321x_gpio_btn_data,
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}
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};
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static struct platform_device *rdc321x_devs[] = {
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&rdc_flash_device,
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&rdc321x_leds,
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&rdc321x_button,
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};
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static int probe_flash_start(struct map_info *the_map)
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{
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struct mtd_info *res;
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the_map->virt = ioremap(the_map->phys, the_map->size);
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if (the_map->virt == NULL)
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return 1;
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for (the_map->bankwidth = 32; the_map->bankwidth; the_map->bankwidth
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>>= 1) {
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res = do_map_probe("cfi_probe", the_map);
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if (res == NULL)
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res = do_map_probe("jedec_probe", the_map);
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if (res != NULL)
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break;
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}
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iounmap(the_map->virt);
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if (res != NULL)
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the_map->phys = (u32)-(s32)(the_map->size = res->size);
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return res == NULL;
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}
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static int __init rdc_board_setup(void)
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{
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#ifndef CONFIG_MTD_RDC3210
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struct map_info rdc_map_info;
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u32 the_header[8];
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ROOT_DEV = 0;
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rdc_map_info.name = rdc_flash_device.name;
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rdc_map_info.size = 0x800000; //8MB
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rdc_map_info.phys = (u32) -rdc_map_info.size;
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rdc_map_info.bankwidth = 2;
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rdc_map_info.set_vpp = NULL;
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simple_map_init(&rdc_map_info);
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while (probe_flash_start(&rdc_map_info)) {
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if (rdc_map_info.size /= 2 < 0x100000) //1MB
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panic("Could not find start of flash!");
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rdc_map_info.phys = (u32) -rdc_map_info.size;
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}
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rdc_flash_resource.start = rdc_map_info.phys;
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rdc_flash_data.width = rdc_map_info.bankwidth;
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rdc_map_info.virt = ioremap_nocache(rdc_map_info.phys, 0x10);
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if (rdc_map_info.virt == NULL)
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panic("Could not ioremap to read device magic!");
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the_header[0] = ((u32 *)rdc_map_info.virt)[0];
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the_header[1] = ((u32 *)rdc_map_info.virt)[1];
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the_header[2] = ((u32 *)rdc_map_info.virt)[2];
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the_header[3] = ((u32 *)rdc_map_info.virt)[3];
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iounmap(rdc_map_info.virt);
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rdc_map_info.virt = ioremap_nocache(rdc_map_info.phys + 0x8000, 0x10);
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if (rdc_map_info.virt == NULL)
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panic("Could not ioremap to read device magic!");
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the_header[4] = ((u32 *)rdc_map_info.virt)[0];
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the_header[5] = ((u32 *)rdc_map_info.virt)[1];
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the_header[6] = ((u32 *)rdc_map_info.virt)[2];
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the_header[7] = ((u32 *)rdc_map_info.virt)[3];
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iounmap(rdc_map_info.virt);
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if (!memcmp(the_header, "GMTK", 4)) { /* Gemtek */
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/* TODO */
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} else if (!memcmp(the_header + 4, "CSYS", 4)) { /* Sitecom */
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rdc_flash_parts[0].name = "system";
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rdc_flash_parts[0].offset = 0;
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rdc_flash_parts[0].size = rdc_map_info.size - 0x10000;
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rdc_flash_parts[1].name = "config";
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rdc_flash_parts[1].offset = 0;
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rdc_flash_parts[1].size = 0x8000;
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rdc_flash_parts[2].name = "magic";
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rdc_flash_parts[2].offset = 0x8000;
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rdc_flash_parts[2].size = 0x14;
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rdc_flash_parts[3].name = "kernel";
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rdc_flash_parts[3].offset = 0x8014;
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rdc_flash_parts[3].size = the_header[5];
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rdc_flash_parts[4].name = "rootfs";
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rdc_flash_parts[4].offset = 0x8014 + the_header[5];
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rdc_flash_parts[4].size = rdc_flash_parts[0].size - rdc_flash_parts[4].offset;
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rdc_flash_parts[5].name = "bootloader";
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rdc_flash_parts[5].offset = rdc_flash_parts[0].size;
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rdc_flash_parts[5].size = 0x10000;
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rdc_flash_data.nr_parts = 6;
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} else if (!memcmp(((u8 *)the_header) + 14, "Li", 2)) { /* AMIT */
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rdc_flash_parts[0].name = "kernel_parthdr";
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rdc_flash_parts[0].offset = 0;
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rdc_flash_parts[0].size = 0x10;
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rdc_flash_parts[1].name = "kernel";
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rdc_flash_parts[1].offset = 0x10;
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rdc_flash_parts[1].size = 0xffff0;
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rdc_flash_parts[2].name = "rootfs_parthdr";
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rdc_flash_parts[2].offset = 0x100000;
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rdc_flash_parts[2].size = 0x10;
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rdc_flash_parts[3].name = "rootfs";
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rdc_flash_parts[3].offset = 0x100010;
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rdc_flash_parts[3].size = rdc_map_info.size - 0x160010;
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rdc_flash_parts[4].name = "config_parthdr";
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rdc_flash_parts[4].offset = rdc_map_info.size - 0x60000;
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rdc_flash_parts[4].size = 0x10;
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rdc_flash_parts[5].name = "config";
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rdc_flash_parts[5].offset = rdc_map_info.size - 0x5fff0;
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rdc_flash_parts[5].size = 0xfff0;
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rdc_flash_parts[6].name = "recoveryfs_parthdr";
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rdc_flash_parts[6].offset = rdc_map_info.size - 0x50000;
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rdc_flash_parts[6].size = 0x10;
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rdc_flash_parts[7].name = "recoveryfs";
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rdc_flash_parts[7].offset = rdc_map_info.size - 0x4fff0;
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rdc_flash_parts[7].size = 0x3fff0;
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rdc_flash_parts[8].name = "recovery_parthdr";
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rdc_flash_parts[8].offset = rdc_map_info.size - 0x10000;
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rdc_flash_parts[8].size = 0x10;
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rdc_flash_parts[9].name = "recovery";
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rdc_flash_parts[9].offset = rdc_map_info.size - 0xfff0;
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rdc_flash_parts[9].size = 0x7ff0;
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rdc_flash_parts[10].name = "productinfo_parthdr";
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rdc_flash_parts[10].offset = rdc_map_info.size - 0x8000;
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rdc_flash_parts[10].size = 0x10;
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rdc_flash_parts[11].name = "productinfo";
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rdc_flash_parts[11].offset = rdc_map_info.size - 0x7ff0;
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rdc_flash_parts[11].size = 0x1ff0;
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rdc_flash_parts[12].name = "bootloader_parthdr";
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rdc_flash_parts[12].offset = rdc_map_info.size - 0x6000;
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rdc_flash_parts[12].size = 0x10;
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rdc_flash_parts[13].name = "bootloader";
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rdc_flash_parts[13].offset = rdc_map_info.size - 0x5ff0;
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rdc_flash_parts[13].size = 0x5ff0;
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rdc_flash_parts[14].name = "everything";
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rdc_flash_parts[14].offset = 0;
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rdc_flash_parts[14].size = rdc_map_info.size;
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rdc_flash_data.nr_parts = 15;
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} else { /* ZyXEL */
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rdc_flash_parts[0].name = "kernel";
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rdc_flash_parts[0].offset = 0;
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rdc_flash_parts[0].size = 0x100000;
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rdc_flash_parts[1].name = "rootfs";
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rdc_flash_parts[1].offset = 0x100000;
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rdc_flash_parts[1].size = rdc_map_info.size - 0x140000;
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rdc_flash_parts[2].name = "linux";
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rdc_flash_parts[2].offset = 0;
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rdc_flash_parts[2].size = rdc_map_info.size - 0x40000;
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rdc_flash_parts[3].name = "config";
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rdc_flash_parts[3].offset = rdc_map_info.size - 0x40000;
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rdc_flash_parts[3].size = 0x10000;
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rdc_flash_parts[4].name = "productinfo";
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rdc_flash_parts[4].offset = rdc_map_info.size - 0x30000;
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rdc_flash_parts[4].size = 0x10000;
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rdc_flash_parts[5].name = "bootloader";
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rdc_flash_parts[5].offset = rdc_map_info.size - 0x20000;
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rdc_flash_parts[5].size = 0x20000;
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rdc_flash_data.nr_parts = 6;
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}
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#endif
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return platform_add_devices(rdc321x_devs, ARRAY_SIZE(rdc321x_devs));
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}
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#ifdef CONFIG_MTD_RDC3210
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arch_initcall(rdc_board_setup);
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#else
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late_initcall(rdc_board_setup);
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#endif
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