LXR linux/arch/arm/mach-at91/board-cpuat91.c

   1/*
   2 * linux/arch/arm/mach-at91/board-cpuat91.c
   3 *
   4 *  Copyright (C) 2009 Eric Benard - eric@eukrea.com
   5 *
   6 * This program is free software; you can redistribute it and/or modify
   7 * it under the terms of the GNU General Public License as published by
   8 * the Free Software Foundation; either version 2 of the License, or
   9 * (at your option) any later version.
  10 *
  11 * This program is distributed in the hope that it will be useful,
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 * GNU General Public License for more details.
  15 *
  16 * You should have received a copy of the GNU General Public License
  17 * along with this program; if not, write to the Free Software
  18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19 */
  20
  21#include <linux/types.h>
  22#include <linux/init.h>
  23#include <linux/mm.h>
  24#include <linux/module.h>
  25#include <linux/platform_device.h>
  26#include <linux/mtd/physmap.h>
  27#include <linux/mtd/plat-ram.h>
  28
  29#include <mach/hardware.h>
  30#include <asm/setup.h>
  31#include <asm/mach-types.h>
  32#include <asm/irq.h>
  33
  34#include <asm/mach/arch.h>
  35#include <asm/mach/map.h>
  36#include <asm/mach/irq.h>
  37
  38#include <mach/board.h>
  39#include <mach/gpio.h>
  40#include <mach/at91rm9200_mc.h>
  41
  42#include "generic.h"
  43
  44static struct gpio_led cpuat91_leds[] = {
  45        {
  46                .name                   = "led1",
  47                .default_trigger        = "heartbeat",
  48                .active_low             = 1,
  49                .gpio                   = AT91_PIN_PC0,
  50        },
  51};
  52
  53static void __init cpuat91_map_io(void)
  54{
  55        /* Initialize processor: 18.432 MHz crystal */
  56        at91rm9200_initialize(18432000, AT91RM9200_PQFP);
  57
  58        /* DBGU on ttyS0. (Rx & Tx only) */
  59        at91_register_uart(0, 0, 0);
  60
  61        /* USART0 on ttyS1. (Rx, Tx, CTS, RTS) */
  62        at91_register_uart(AT91RM9200_ID_US0, 1, ATMEL_UART_CTS |
  63                ATMEL_UART_RTS);
  64
  65        /* USART1 on ttyS2. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
  66        at91_register_uart(AT91RM9200_ID_US1, 2, ATMEL_UART_CTS |
  67                ATMEL_UART_RTS | ATMEL_UART_DTR | ATMEL_UART_DSR |
  68                ATMEL_UART_DCD | ATMEL_UART_RI);
  69
  70        /* USART2 on ttyS3 (Rx, Tx) */
  71        at91_register_uart(AT91RM9200_ID_US2, 3, 0);
  72
  73        /* USART3 on ttyS4 (Rx, Tx, CTS, RTS) */
  74        at91_register_uart(AT91RM9200_ID_US3, 4, ATMEL_UART_CTS |
  75                ATMEL_UART_RTS);
  76
  77        /* set serial console to ttyS0 (ie, DBGU) */
  78        at91_set_serial_console(0);
  79}
  80
  81static void __init cpuat91_init_irq(void)
  82{
  83        at91rm9200_init_interrupts(NULL);
  84}
  85
  86static struct at91_eth_data __initdata cpuat91_eth_data = {
  87        .is_rmii        = 1,
  88};
  89
  90static struct at91_usbh_data __initdata cpuat91_usbh_data = {
  91        .ports          = 1,
  92};
  93
  94static struct at91_udc_data __initdata cpuat91_udc_data = {
  95        .vbus_pin       = AT91_PIN_PC15,
  96        .pullup_pin     = AT91_PIN_PC14,
  97};
  98
  99static struct at91_mmc_data __initdata cpuat91_mmc_data = {
 100        .det_pin        = AT91_PIN_PC2,
 101        .wire4          = 1,
 102};
 103
 104static struct physmap_flash_data cpuat91_flash_data = {
 105        .width          = 2,
 106};
 107
 108static struct resource cpuat91_flash_resource = {
 109        .start          = AT91_CHIPSELECT_0,
 110        .end            = AT91_CHIPSELECT_0 + SZ_16M - 1,
 111        .flags          = IORESOURCE_MEM,
 112};
 113
 114static struct platform_device cpuat91_norflash = {
 115        .name           = "physmap-flash",
 116        .id             = 0,
 117        .dev    = {
 118                .platform_data  = &cpuat91_flash_data,
 119        },
 120        .resource       = &cpuat91_flash_resource,
 121        .num_resources  = 1,
 122};
 123
 124#ifdef CONFIG_MTD_PLATRAM
 125struct platdata_mtd_ram at91_sram_pdata = {
 126        .mapname        = "SRAM",
 127        .bankwidth      = 2,
 128};
 129
 130static struct resource at91_sram_resource[] = {
 131        [0] = {
 132                .start = AT91RM9200_SRAM_BASE,
 133                .end   = AT91RM9200_SRAM_BASE + AT91RM9200_SRAM_SIZE - 1,
 134                .flags = IORESOURCE_MEM,
 135        },
 136};
 137
 138static struct platform_device at91_sram = {
 139        .name           = "mtd-ram",
 140        .id             = 0,
 141        .resource       = at91_sram_resource,
 142        .num_resources  = ARRAY_SIZE(at91_sram_resource),
 143        .dev    = {
 144                .platform_data = &at91_sram_pdata,
 145        },
 146};
 147#endif /* MTD_PLATRAM */
 148
 149static struct platform_device *platform_devices[] __initdata = {
 150        &cpuat91_norflash,
 151#ifdef CONFIG_MTD_PLATRAM
 152        &at91_sram,
 153#endif /* CONFIG_MTD_PLATRAM */
 154};
 155
 156static void __init cpuat91_board_init(void)
 157{
 158        /* Serial */
 159        at91_add_device_serial();
 160        /* LEDs. */
 161        at91_gpio_leds(cpuat91_leds, ARRAY_SIZE(cpuat91_leds));
 162        /* Ethernet */
 163        at91_add_device_eth(&cpuat91_eth_data);
 164        /* USB Host */
 165        at91_add_device_usbh(&cpuat91_usbh_data);
 166        /* USB Device */
 167        at91_add_device_udc(&cpuat91_udc_data);
 168        /* MMC */
 169        at91_add_device_mmc(0, &cpuat91_mmc_data);
 170        /* I2C */
 171        at91_add_device_i2c(NULL, 0);
 172        /* Platform devices */
 173        platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 174}
 175
 176MACHINE_START(CPUAT91, "Eukrea")
 177        /* Maintainer: Eric Benard - EUKREA Electromatique */
 178        .boot_params    = AT91_SDRAM_BASE + 0x100,
 179        .timer          = &at91rm9200_timer,
 180        .map_io         = cpuat91_map_io,
 181        .init_irq       = cpuat91_init_irq,
 182        .init_machine   = cpuat91_board_init,
 183MACHINE_END
 184