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/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/board.h>
  40 #include <mach/at91rm9200_mc.h>
  41 #include <mach/at91_ramc.h>
  42 #include <mach/cpu.h>
  43
  44 #include "generic.h"
  45
  46 static struct gpio_led cpuat91_leds[] = {
  47         {
  48                 .name                   = "led1",
  49                 .default_trigger        = "heartbeat",
  50                 .active_low             = 1,
  51                 .gpio                   = AT91_PIN_PC0,
  52         },
  53 };
  54
  55 static void __init cpuat91_init_early(void)
  56 {
  57         /* Set cpu type: PQFP */
  58         at91rm9200_set_type(ARCH_REVISON_9200_PQFP);
  59
  60         /* Initialize processor: 18.432 MHz crystal */
  61         at91_initialize(18432000);
  62 }
  63
  64 static struct macb_platform_data __initdata cpuat91_eth_data = {
  65         .phy_irq_pin    = -EINVAL,
  66         .is_rmii        = 1,
  67 };
  68
  69 static struct at91_usbh_data __initdata cpuat91_usbh_data = {
  70         .ports          = 1,
  71         .vbus_pin       = {-EINVAL, -EINVAL},
  72         .overcurrent_pin= {-EINVAL, -EINVAL},
  73 };
  74
  75 static struct at91_udc_data __initdata cpuat91_udc_data = {
  76         .vbus_pin       = AT91_PIN_PC15,
  77         .pullup_pin     = AT91_PIN_PC14,
  78 };
  79
  80 static struct at91_mmc_data __initdata cpuat91_mmc_data = {
  81         .det_pin        = AT91_PIN_PC2,
  82         .wire4          = 1,
  83         .wp_pin         = -EINVAL,
  84         .vcc_pin        = -EINVAL,
  85 };
  86
  87 static struct physmap_flash_data cpuat91_flash_data = {
  88         .width          = 2,
  89 };
  90
  91 static struct resource cpuat91_flash_resource = {
  92         .start          = AT91_CHIPSELECT_0,
  93         .end            = AT91_CHIPSELECT_0 + SZ_16M - 1,
  94         .flags          = IORESOURCE_MEM,
  95 };
  96
  97 static struct platform_device cpuat91_norflash = {
  98         .name           = "physmap-flash",
  99         .id             = 0,
 100         .dev    = {
 101                 .platform_data  = &cpuat91_flash_data,
 102         },
 103         .resource       = &cpuat91_flash_resource,
 104         .num_resources  = 1,
 105 };
 106
 107 #ifdef CONFIG_MTD_PLATRAM
 108 struct platdata_mtd_ram at91_sram_pdata = {
 109         .mapname        = "SRAM",
 110         .bankwidth      = 2,
 111 };
 112
 113 static struct resource at91_sram_resource[] = {
 114         [0] = {
 115                 .start = AT91RM9200_SRAM_BASE,
 116                 .end   = AT91RM9200_SRAM_BASE + AT91RM9200_SRAM_SIZE - 1,
 117                 .flags = IORESOURCE_MEM,
 118         },
 119 };
 120
 121 static struct platform_device at91_sram = {
 122         .name           = "mtd-ram",
 123         .id             = 0,
 124         .resource       = at91_sram_resource,
 125         .num_resources  = ARRAY_SIZE(at91_sram_resource),
 126         .dev    = {
 127                 .platform_data = &at91_sram_pdata,
 128         },
 129 };
 130 #endif /* MTD_PLATRAM */
 131
 132 static struct platform_device *platform_devices[] __initdata = {
 133         &cpuat91_norflash,
 134 #ifdef CONFIG_MTD_PLATRAM
 135         &at91_sram,
 136 #endif /* CONFIG_MTD_PLATRAM */
 137 };
 138
 139 static void __init cpuat91_board_init(void)
 140 {
 141         /* Serial */
 142         /* DBGU on ttyS0. (Rx & Tx only) */
 143         at91_register_uart(0, 0, 0);
 144
 145         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS) */
 146         at91_register_uart(AT91RM9200_ID_US0, 1, ATMEL_UART_CTS |
 147                 ATMEL_UART_RTS);
 148
 149         /* USART1 on ttyS2. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
 150         at91_register_uart(AT91RM9200_ID_US1, 2, ATMEL_UART_CTS |
 151                 ATMEL_UART_RTS | ATMEL_UART_DTR | ATMEL_UART_DSR |
 152                 ATMEL_UART_DCD | ATMEL_UART_RI);
 153
 154         /* USART2 on ttyS3 (Rx, Tx) */
 155         at91_register_uart(AT91RM9200_ID_US2, 3, 0);
 156
 157         /* USART3 on ttyS4 (Rx, Tx, CTS, RTS) */
 158         at91_register_uart(AT91RM9200_ID_US3, 4, ATMEL_UART_CTS |
 159                 ATMEL_UART_RTS);
 160         at91_add_device_serial();
 161         /* LEDs. */
 162         at91_gpio_leds(cpuat91_leds, ARRAY_SIZE(cpuat91_leds));
 163         /* Ethernet */
 164         at91_add_device_eth(&cpuat91_eth_data);
 165         /* USB Host */
 166         at91_add_device_usbh(&cpuat91_usbh_data);
 167         /* USB Device */
 168         at91_add_device_udc(&cpuat91_udc_data);
 169         /* MMC */
 170         at91_add_device_mmc(0, &cpuat91_mmc_data);
 171         /* I2C */
 172         at91_add_device_i2c(NULL, 0);
 173         /* Platform devices */
 174         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 175 }
 176
 177 MACHINE_START(CPUAT91, "Eukrea")
 178         /* Maintainer: Eric Benard - EUKREA Electromatique */
 179         .timer          = &at91rm9200_timer,
 180         .map_io         = at91_map_io,
 181         .init_early     = cpuat91_init_early,
 182         .init_irq       = at91_init_irq_default,
 183         .init_machine   = cpuat91_board_init,
 184 MACHINE_END