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/hardware.h>
  33 #include <asm/setup.h>
  34 #include <asm/mach-types.h>
  35 #include <asm/irq.h>
  36
  37 #include <asm/mach/arch.h>
  38 #include <asm/mach/map.h>
  39 #include <asm/mach/irq.h>
  40
  41 #include <asm/arch/board.h>
  42 #include <asm/arch/gpio.h>
  43 #include <asm/arch/at91rm9200_mc.h>
  44
  45 #include "generic.h"
  46
  47
  48 /*
  49  * Serial port configuration.
  50  *    0 .. 3 = USART0 .. USART3
  51  *    4      = DBGU
  52  */
  53 static struct at91_uart_config __initdata ek_uart_config = {
  54         .console_tty    = 0,                            /* ttyS0 */
  55         .nr_tty         = 2,
  56         .tty_map        = { 4, 1, -1, -1, -1 }          /* ttyS0, ..., ttyS4 */
  57 };
  58
  59 static void __init ek_map_io(void)
  60 {
  61         /* Initialize processor: 18.432 MHz crystal */
  62         at91rm9200_initialize(18432000, AT91RM9200_BGA);
  63
  64         /* Setup the LEDs */
  65         at91_init_leds(AT91_PIN_PB1, AT91_PIN_PB2);
  66
  67         /* Setup the serial ports and console */
  68         at91_init_serial(&ek_uart_config);
  69 }
  70
  71 static void __init ek_init_irq(void)
  72 {
  73         at91rm9200_init_interrupts(NULL);
  74 }
  75
  76 static struct at91_eth_data __initdata ek_eth_data = {
  77         .phy_irq_pin    = AT91_PIN_PC4,
  78         .is_rmii        = 1,
  79 };
  80
  81 static struct at91_usbh_data __initdata ek_usbh_data = {
  82         .ports          = 2,
  83 };
  84
  85 static struct at91_udc_data __initdata ek_udc_data = {
  86         .vbus_pin       = AT91_PIN_PD4,
  87         .pullup_pin     = AT91_PIN_PD5,
  88 };
  89
  90 static struct at91_mmc_data __initdata ek_mmc_data = {
  91         .det_pin        = AT91_PIN_PB27,
  92         .slot_b         = 0,
  93         .wire4          = 1,
  94         .wp_pin         = AT91_PIN_PA17,
  95 };
  96
  97 static struct spi_board_info ek_spi_devices[] = {
  98         {       /* DataFlash chip */
  99                 .modalias       = "mtd_dataflash",
 100                 .chip_select    = 0,
 101                 .max_speed_hz   = 15 * 1000 * 1000,
 102         },
 103 #ifdef CONFIG_MTD_AT91_DATAFLASH_CARD
 104         {       /* DataFlash card */
 105                 .modalias       = "mtd_dataflash",
 106                 .chip_select    = 3,
 107                 .max_speed_hz   = 15 * 1000 * 1000,
 108         },
 109 #endif
 110 };
 111
 112 static struct i2c_board_info __initdata ek_i2c_devices[] = {
 113         {
 114                 I2C_BOARD_INFO("ics1523", 0x26),
 115         },
 116         {
 117                 I2C_BOARD_INFO("dac3550", 0x4d),
 118         }
 119 };
 120
 121 #define EK_FLASH_BASE   AT91_CHIPSELECT_0
 122 #define EK_FLASH_SIZE   0x200000
 123
 124 static struct physmap_flash_data ek_flash_data = {
 125         .width  = 2,
 126 };
 127
 128 static struct resource ek_flash_resource = {
 129         .start          = EK_FLASH_BASE,
 130         .end            = EK_FLASH_BASE + EK_FLASH_SIZE - 1,
 131         .flags          = IORESOURCE_MEM,
 132 };
 133
 134 static struct platform_device ek_flash = {
 135         .name           = "physmap-flash",
 136         .id             = 0,
 137         .dev            = {
 138                                 .platform_data  = &ek_flash_data,
 139                         },
 140         .resource       = &ek_flash_resource,
 141         .num_resources  = 1,
 142 };
 143
 144 static struct gpio_led ek_leds[] = {
 145         {       /* "user led 1", DS2 */
 146                 .name                   = "green",
 147                 .gpio                   = AT91_PIN_PB0,
 148                 .active_low             = 1,
 149                 .default_trigger        = "mmc0",
 150         },
 151         {       /* "user led 2", DS4 */
 152                 .name                   = "yellow",
 153                 .gpio                   = AT91_PIN_PB1,
 154                 .active_low             = 1,
 155                 .default_trigger        = "heartbeat",
 156         },
 157         {       /* "user led 3", DS6 */
 158                 .name                   = "red",
 159                 .gpio                   = AT91_PIN_PB2,
 160                 .active_low             = 1,
 161         }
 162 };
 163
 164 static void __init ek_board_init(void)
 165 {
 166         /* Serial */
 167         at91_add_device_serial();
 168         /* Ethernet */
 169         at91_add_device_eth(&ek_eth_data);
 170         /* USB Host */
 171         at91_add_device_usbh(&ek_usbh_data);
 172         /* USB Device */
 173         at91_add_device_udc(&ek_udc_data);
 174         at91_set_multi_drive(ek_udc_data.pullup_pin, 1);        /* pullup_pin is connected to reset */
 175         /* I2C */
 176         at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
 177         /* SPI */
 178         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 179 #ifdef CONFIG_MTD_AT91_DATAFLASH_CARD
 180         /* DataFlash card */
 181         at91_set_gpio_output(AT91_PIN_PB22, 0);
 182 #else
 183         /* MMC */
 184         at91_set_gpio_output(AT91_PIN_PB22, 1); /* this MMC card slot can optionally use SPI signaling (CS3). */
 185         at91_add_device_mmc(0, &ek_mmc_data);
 186 #endif
 187         /* NOR Flash */
 188         platform_device_register(&ek_flash);
 189         /* LEDs */
 190         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 191         /* VGA */
 192 //      ek_add_device_video();
 193 }
 194
 195 MACHINE_START(AT91RM9200EK, "Atmel AT91RM9200-EK")
 196         /* Maintainer: SAN People/Atmel */
 197         .phys_io        = AT91_BASE_SYS,
 198         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 199         .boot_params    = AT91_SDRAM_BASE + 0x100,
 200         .timer          = &at91rm9200_timer,
 201         .map_io         = ek_map_io,
 202         .init_irq       = ek_init_irq,
 203         .init_machine   = ek_board_init,
 204 MACHINE_END