linux/arch/arm/mach-at91/board-cpuat91.c
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   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/gpio.h>
  23#include <linux/init.h>
  24#include <linux/mm.h>
  25#include <linux/module.h>
  26#include <linux/platform_device.h>
  27#include <linux/mtd/physmap.h>
  28#include <linux/mtd/plat-ram.h>
  29
  30#include <mach/hardware.h>
  31#include <asm/setup.h>
  32#include <asm/mach-types.h>
  33#include <asm/irq.h>
  34
  35#include <asm/mach/arch.h>
  36#include <asm/mach/map.h>
  37#include <asm/mach/irq.h>
  38
  39#include <mach/at91rm9200_mc.h>
  40#include <mach/at91_ramc.h>
  41#include <mach/cpu.h>
  42
  43#include "at91_aic.h"
  44#include "board.h"
  45#include "generic.h"
  46
  47static struct gpio_led cpuat91_leds[] = {
  48        {
  49                .name                   = "led1",
  50                .default_trigger        = "heartbeat",
  51                .active_low             = 1,
  52                .gpio                   = AT91_PIN_PC0,
  53        },
  54};
  55
  56static void __init cpuat91_init_early(void)
  57{
  58        /* Set cpu type: PQFP */
  59        at91rm9200_set_type(ARCH_REVISON_9200_PQFP);
  60
  61        /* Initialize processor: 18.432 MHz crystal */
  62        at91_initialize(18432000);
  63}
  64
  65static struct macb_platform_data __initdata cpuat91_eth_data = {
  66        .phy_irq_pin    = -EINVAL,
  67        .is_rmii        = 1,
  68};
  69
  70static struct at91_usbh_data __initdata cpuat91_usbh_data = {
  71        .ports          = 1,
  72        .vbus_pin       = {-EINVAL, -EINVAL},
  73        .overcurrent_pin= {-EINVAL, -EINVAL},
  74};
  75
  76static struct at91_udc_data __initdata cpuat91_udc_data = {
  77        .vbus_pin       = AT91_PIN_PC15,
  78        .pullup_pin     = AT91_PIN_PC14,
  79};
  80
  81static struct mci_platform_data __initdata cpuat91_mci0_data = {
  82        .slot[0] = {
  83                .bus_width      = 4,
  84                .detect_pin     = AT91_PIN_PC2,
  85                .wp_pin         = -EINVAL,
  86        },
  87};
  88
  89static struct physmap_flash_data cpuat91_flash_data = {
  90        .width          = 2,
  91};
  92
  93static struct resource cpuat91_flash_resource = {
  94        .start          = AT91_CHIPSELECT_0,
  95        .end            = AT91_CHIPSELECT_0 + SZ_16M - 1,
  96        .flags          = IORESOURCE_MEM,
  97};
  98
  99static struct platform_device cpuat91_norflash = {
 100        .name           = "physmap-flash",
 101        .id             = 0,
 102        .dev    = {
 103                .platform_data  = &cpuat91_flash_data,
 104        },
 105        .resource       = &cpuat91_flash_resource,
 106        .num_resources  = 1,
 107};
 108
 109#ifdef CONFIG_MTD_PLATRAM
 110struct platdata_mtd_ram at91_sram_pdata = {
 111        .mapname        = "SRAM",
 112        .bankwidth      = 2,
 113};
 114
 115static struct resource at91_sram_resource[] = {
 116        [0] = {
 117                .start = AT91RM9200_SRAM_BASE,
 118                .end   = AT91RM9200_SRAM_BASE + AT91RM9200_SRAM_SIZE - 1,
 119                .flags = IORESOURCE_MEM,
 120        },
 121};
 122
 123static struct platform_device at91_sram = {
 124        .name           = "mtd-ram",
 125        .id             = 0,
 126        .resource       = at91_sram_resource,
 127        .num_resources  = ARRAY_SIZE(at91_sram_resource),
 128        .dev    = {
 129                .platform_data = &at91_sram_pdata,
 130        },
 131};
 132#endif /* MTD_PLATRAM */
 133
 134static struct platform_device *platform_devices[] __initdata = {
 135        &cpuat91_norflash,
 136#ifdef CONFIG_MTD_PLATRAM
 137        &at91_sram,
 138#endif /* CONFIG_MTD_PLATRAM */
 139};
 140
 141static void __init cpuat91_board_init(void)
 142{
 143        /* Serial */
 144        /* DBGU on ttyS0. (Rx & Tx only) */
 145        at91_register_uart(0, 0, 0);
 146
 147        /* USART0 on ttyS1. (Rx, Tx, CTS, RTS) */
 148        at91_register_uart(AT91RM9200_ID_US0, 1, ATMEL_UART_CTS |
 149                ATMEL_UART_RTS);
 150
 151        /* USART1 on ttyS2. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
 152        at91_register_uart(AT91RM9200_ID_US1, 2, ATMEL_UART_CTS |
 153                ATMEL_UART_RTS | ATMEL_UART_DTR | ATMEL_UART_DSR |
 154                ATMEL_UART_DCD | ATMEL_UART_RI);
 155
 156        /* USART2 on ttyS3 (Rx, Tx) */
 157        at91_register_uart(AT91RM9200_ID_US2, 3, 0);
 158
 159        /* USART3 on ttyS4 (Rx, Tx, CTS, RTS) */
 160        at91_register_uart(AT91RM9200_ID_US3, 4, ATMEL_UART_CTS |
 161                ATMEL_UART_RTS);
 162        at91_add_device_serial();
 163        /* LEDs. */
 164        at91_gpio_leds(cpuat91_leds, ARRAY_SIZE(cpuat91_leds));
 165        /* Ethernet */
 166        at91_add_device_eth(&cpuat91_eth_data);
 167        /* USB Host */
 168        at91_add_device_usbh(&cpuat91_usbh_data);
 169        /* USB Device */
 170        at91_add_device_udc(&cpuat91_udc_data);
 171        /* MMC */
 172        at91_add_device_mci(0, &cpuat91_mci0_data);
 173        /* I2C */
 174        at91_add_device_i2c(NULL, 0);
 175        /* Platform devices */
 176        platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 177}
 178
 179MACHINE_START(CPUAT91, "Eukrea")
 180        /* Maintainer: Eric Benard - EUKREA Electromatique */
 181        .init_time      = at91rm9200_timer_init,
 182        .map_io         = at91_map_io,
 183        .handle_irq     = at91_aic_handle_irq,
 184        .init_early     = cpuat91_init_early,
 185        .init_irq       = at91_init_irq_default,
 186        .init_machine   = cpuat91_board_init,
 187MACHINE_END
 188