/arch/arm/mach-at91/board-ek.c

  1/*
  2 * linux/arch/arm/mach-at91/board-ek.c
  3 *
  4 *  Copyright (C) 2005 SAN People
  5 *
  6 *  Epson S1D framebuffer glue code is:
  7 *     Copyright (C) 2005 Thibaut VARENE <varenet@parisc-linux.org>
  8 *
  9 * This program is free software; you can redistribute it and/or modify
 10 * it under the terms of the GNU General Public License as published by
 11 * the Free Software Foundation; either version 2 of the License, or
 12 * (at your option) any later version.
 13 *
 14 * This program is distributed in the hope that it will be useful,
 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 17 * GNU General Public License for more details.
 18 *
 19 * You should have received a copy of the GNU General Public License
 20 * along with this program; if not, write to the Free Software
 21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 22 */
 23
 24#include <linux/types.h>
 25#include <linux/init.h>
 26#include <linux/mm.h>
 27#include <linux/module.h>
 28#include <linux/platform_device.h>
 29#include <linux/spi/spi.h>
 30#include <linux/mtd/physmap.h>
 31
 32#include <asm/setup.h>
 33#include <asm/mach-types.h>
 34#include <asm/irq.h>
 35
 36#include <asm/mach/arch.h>
 37#include <asm/mach/map.h>
 38#include <asm/mach/irq.h>
 39
 40#include <mach/hardware.h>
 41#include <mach/board.h>
 42#include <mach/gpio.h>
 43#include <mach/at91rm9200_mc.h>
 44
 45#include "generic.h"
 46
 47
 48static void __init ek_map_io(void)
 49{
 50	/* Initialize processor: 18.432 MHz crystal */
 51	at91rm9200_initialize(18432000, AT91RM9200_BGA);
 52
 53	/* Setup the LEDs */
 54	at91_init_leds(AT91_PIN_PB1, AT91_PIN_PB2);
 55
 56	/* DBGU on ttyS0. (Rx & Tx only) */
 57	at91_register_uart(0, 0, 0);
 58
 59	/* USART1 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
 60	at91_register_uart(AT91RM9200_ID_US1, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
 61			   | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
 62			   | ATMEL_UART_RI);
 63
 64	/* set serial console to ttyS0 (ie, DBGU) */
 65	at91_set_serial_console(0);
 66}
 67
 68static void __init ek_init_irq(void)
 69{
 70	at91rm9200_init_interrupts(NULL);
 71}
 72
 73static struct at91_eth_data __initdata ek_eth_data = {
 74	.phy_irq_pin	= AT91_PIN_PC4,
 75	.is_rmii	= 1,
 76};
 77
 78static struct at91_usbh_data __initdata ek_usbh_data = {
 79	.ports		= 2,
 80};
 81
 82static struct at91_udc_data __initdata ek_udc_data = {
 83	.vbus_pin	= AT91_PIN_PD4,
 84	.pullup_pin	= AT91_PIN_PD5,
 85};
 86
 87static struct at91_mmc_data __initdata ek_mmc_data = {
 88	.det_pin	= AT91_PIN_PB27,
 89	.slot_b		= 0,
 90	.wire4		= 1,
 91	.wp_pin		= AT91_PIN_PA17,
 92};
 93
 94static struct spi_board_info ek_spi_devices[] = {
 95	{	/* DataFlash chip */
 96		.modalias	= "mtd_dataflash",
 97		.chip_select	= 0,
 98		.max_speed_hz	= 15 * 1000 * 1000,
 99	},
100#ifdef CONFIG_MTD_AT91_DATAFLASH_CARD
101	{	/* DataFlash card */
102		.modalias	= "mtd_dataflash",
103		.chip_select	= 3,
104		.max_speed_hz	= 15 * 1000 * 1000,
105	},
106#endif
107};
108
109static struct i2c_board_info __initdata ek_i2c_devices[] = {
110	{
111		I2C_BOARD_INFO("ics1523", 0x26),
112	},
113	{
114		I2C_BOARD_INFO("dac3550", 0x4d),
115	}
116};
117
118#define EK_FLASH_BASE	AT91_CHIPSELECT_0
119#define EK_FLASH_SIZE	SZ_2M
120
121static struct physmap_flash_data ek_flash_data = {
122	.width		= 2,
123};
124
125static struct resource ek_flash_resource = {
126	.start		= EK_FLASH_BASE,
127	.end		= EK_FLASH_BASE + EK_FLASH_SIZE - 1,
128	.flags		= IORESOURCE_MEM,
129};
130
131static struct platform_device ek_flash = {
132	.name		= "physmap-flash",
133	.id		= 0,
134	.dev		= {
135				.platform_data	= &ek_flash_data,
136			},
137	.resource	= &ek_flash_resource,
138	.num_resources	= 1,
139};
140
141static struct gpio_led ek_leds[] = {
142	{	/* "user led 1", DS2 */
143		.name			= "green",
144		.gpio			= AT91_PIN_PB0,
145		.active_low		= 1,
146		.default_trigger	= "mmc0",
147	},
148	{	/* "user led 2", DS4 */
149		.name			= "yellow",
150		.gpio			= AT91_PIN_PB1,
151		.active_low		= 1,
152		.default_trigger	= "heartbeat",
153	},
154	{	/* "user led 3", DS6 */
155		.name			= "red",
156		.gpio			= AT91_PIN_PB2,
157		.active_low		= 1,
158	}
159};
160
161static void __init ek_board_init(void)
162{
163	/* Serial */
164	at91_add_device_serial();
165	/* Ethernet */
166	at91_add_device_eth(&ek_eth_data);
167	/* USB Host */
168	at91_add_device_usbh(&ek_usbh_data);
169	/* USB Device */
170	at91_add_device_udc(&ek_udc_data);
171	at91_set_multi_drive(ek_udc_data.pullup_pin, 1);	/* pullup_pin is connected to reset */
172	/* I2C */
173	at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
174	/* SPI */
175	at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
176#ifdef CONFIG_MTD_AT91_DATAFLASH_CARD
177	/* DataFlash card */
178	at91_set_gpio_output(AT91_PIN_PB22, 0);
179#else
180	/* MMC */
181	at91_set_gpio_output(AT91_PIN_PB22, 1);	/* this MMC card slot can optionally use SPI signaling (CS3). */
182	at91_add_device_mmc(0, &ek_mmc_data);
183#endif
184	/* NOR Flash */
185	platform_device_register(&ek_flash);
186	/* LEDs */
187	at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
188	/* VGA */
189//	ek_add_device_video();
190}
191
192MACHINE_START(AT91RM9200EK, "Atmel AT91RM9200-EK")
193	/* Maintainer: SAN People/Atmel */
194	.phys_io	= AT91_BASE_SYS,
195	.io_pg_offst	= (AT91_VA_BASE_SYS >> 18) & 0xfffc,
196	.boot_params	= AT91_SDRAM_BASE + 0x100,
197	.timer		= &at91rm9200_timer,
198	.map_io		= ek_map_io,
199	.init_irq	= ek_init_irq,
200	.init_machine	= ek_board_init,
201MACHINE_END