130 lines
3.2 KiB
C
130 lines
3.2 KiB
C
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/*
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* Copyright (C) 2009 Renesas Solutions Corp.
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*
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* Kuninori Morimoto <morimoto.kuninori@renesas.com>
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*/
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#include <linux/init.h>
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#include <linux/device.h>
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#include <linux/platform_device.h>
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#include <linux/mtd/physmap.h>
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#include <linux/gpio.h>
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#include <linux/interrupt.h>
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#include <asm/io.h>
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#include <asm/heartbeat.h>
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#include <cpu/sh7724.h>
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/*
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* Area Address Interface size BusWidth
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* 0 0x0000_0000 ~ 0x03FF_FFFF FROM 64MB 16bit
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* 1 0x0400_0000 ~ 0x07FF_FFFF Internal I/O 64MB 16/32bit
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* 2 0x0800_0000 ~ 0x0BFF_FFFF DRAM 2 64MB 32bit
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* 3 0x0C00_0000 ~ 0x0FFF_FFFF DRAM 3 64MB 32bit
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* 4 0x1000_0000 ~ 0x13FF_FFFF DRAM 4 64MB 32bit
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* 5 0x1400_0000 ~ 0x17FF_FFFF DRAM 5 64MB 32bit
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* 6 0x1800_0000 ~ 0x1BFF_FFFF MFI 64MB 16bit
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*/
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/* Heartbeat */
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static unsigned char led_pos[] = { 0, 1, 2, 3 };
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static struct heartbeat_data heartbeat_data = {
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.regsize = 8,
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.nr_bits = 4,
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.bit_pos = led_pos,
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};
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static struct resource heartbeat_resources[] = {
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[0] = {
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.start = 0xA405012C, /* PTG */
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.end = 0xA405012E - 1,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct platform_device heartbeat_device = {
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.name = "heartbeat",
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.id = -1,
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.dev = {
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.platform_data = &heartbeat_data,
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},
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.num_resources = ARRAY_SIZE(heartbeat_resources),
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.resource = heartbeat_resources,
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};
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/* MTD */
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static struct mtd_partition nor_flash_partitions[] = {
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{
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.name = "uboot",
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.offset = 0,
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.size = (256 * 1024),
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.mask_flags = MTD_CAP_ROM,
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}, {
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.name = "kernel",
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.offset = MTDPART_OFS_APPEND,
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.size = (2 * 1024 * 1024),
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}, {
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.name = "free-area",
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.offset = MTDPART_OFS_APPEND,
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.size = MTDPART_SIZ_FULL,
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},
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};
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static struct physmap_flash_data nor_flash_data = {
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.width = 2,
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.parts = nor_flash_partitions,
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.nr_parts = ARRAY_SIZE(nor_flash_partitions),
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};
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static struct resource nor_flash_resources[] = {
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[0] = {
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.name = "NOR Flash",
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.start = 0x00000000,
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.end = 0x03ffffff,
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.flags = IORESOURCE_MEM,
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}
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};
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static struct platform_device nor_flash_device = {
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.name = "physmap-flash",
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.resource = nor_flash_resources,
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.num_resources = ARRAY_SIZE(nor_flash_resources),
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.dev = {
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.platform_data = &nor_flash_data,
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},
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};
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static struct platform_device *ecovec_devices[] __initdata = {
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&heartbeat_device,
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&nor_flash_device,
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};
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static int __init devices_setup(void)
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{
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/* enable SCIFA0 */
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gpio_request(GPIO_FN_SCIF0_TXD, NULL);
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gpio_request(GPIO_FN_SCIF0_RXD, NULL);
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gpio_request(GPIO_FN_SCIF0_SCK, NULL);
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/* enable debug LED */
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gpio_request(GPIO_PTG0, NULL);
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gpio_request(GPIO_PTG1, NULL);
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gpio_request(GPIO_PTG2, NULL);
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gpio_request(GPIO_PTG3, NULL);
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gpio_direction_output(GPIO_PTT0, 0);
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gpio_direction_output(GPIO_PTT1, 0);
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gpio_direction_output(GPIO_PTT2, 0);
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gpio_direction_output(GPIO_PTT3, 0);
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return platform_add_devices(ecovec_devices,
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ARRAY_SIZE(ecovec_devices));
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}
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device_initcall(devices_setup);
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static struct sh_machine_vector mv_ecovec __initmv = {
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.mv_name = "R0P7724 (EcoVec)",
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};
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