release/src-rt-6.x.4708/linux/linux-2.6.36/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
  48 static 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
  68 static void __init ek_init_irq(void)
  69 {
  70         at91rm9200_init_interrupts(NULL);
  71 }
  72
  73 static struct at91_eth_data __initdata ek_eth_data = {
  74         .phy_irq_pin    = AT91_PIN_PC4,
  75         .is_rmii        = 1,
  76 };
  77
  78 static struct at91_usbh_data __initdata ek_usbh_data = {
  79         .ports          = 2,
  80 };
  81
  82 static struct at91_udc_data __initdata ek_udc_data = {
  83         .vbus_pin       = AT91_PIN_PD4,
  84         .pullup_pin     = AT91_PIN_PD5,
  85 };
  86
  87 static 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
  94 static 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
 109 static 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
 121 static struct physmap_flash_data ek_flash_data = {
 122         .width          = 2,
 123 };
 124
 125 static 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
 131 static 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
 141 static 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
 161 static 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
 192 MACHINE_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,
 201 MACHINE_END