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/cpu.h>
  42
  43 #include "generic.h"
  44
  45 static struct gpio_led cpuat91_leds[] = {
  46         {
  47                 .name                   = "led1",
  48                 .default_trigger        = "heartbeat",
  49                 .active_low             = 1,
  50                 .gpio                   = AT91_PIN_PC0,
  51         },
  52 };
  53
  54 static void __init cpuat91_init_early(void)
  55 {
  56         /* Set cpu type: PQFP */
  57         at91rm9200_set_type(ARCH_REVISON_9200_PQFP);
  58
  59         /* Initialize processor: 18.432 MHz crystal */
  60         at91_initialize(18432000);
  61
  62         /* DBGU on ttyS0. (Rx & Tx only) */
  63         at91_register_uart(0, 0, 0);
  64
  65         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS) */
  66         at91_register_uart(AT91RM9200_ID_US0, 1, ATMEL_UART_CTS |
  67                 ATMEL_UART_RTS);
  68
  69         /* USART1 on ttyS2. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
  70         at91_register_uart(AT91RM9200_ID_US1, 2, ATMEL_UART_CTS |
  71                 ATMEL_UART_RTS | ATMEL_UART_DTR | ATMEL_UART_DSR |
  72                 ATMEL_UART_DCD | ATMEL_UART_RI);
  73
  74         /* USART2 on ttyS3 (Rx, Tx) */
  75         at91_register_uart(AT91RM9200_ID_US2, 3, 0);
  76
  77         /* USART3 on ttyS4 (Rx, Tx, CTS, RTS) */
  78         at91_register_uart(AT91RM9200_ID_US3, 4, ATMEL_UART_CTS |
  79                 ATMEL_UART_RTS);
  80
  81         /* set serial console to ttyS0 (ie, DBGU) */
  82         at91_set_serial_console(0);
  83 }
  84
  85 static struct at91_eth_data __initdata cpuat91_eth_data = {
  86         .is_rmii        = 1,
  87 };
  88
  89 static struct at91_usbh_data __initdata cpuat91_usbh_data = {
  90         .ports          = 1,
  91 };
  92
  93 static struct at91_udc_data __initdata cpuat91_udc_data = {
  94         .vbus_pin       = AT91_PIN_PC15,
  95         .pullup_pin     = AT91_PIN_PC14,
  96 };
  97
  98 static struct at91_mmc_data __initdata cpuat91_mmc_data = {
  99         .det_pin        = AT91_PIN_PC2,
 100         .wire4          = 1,
 101 };
 102
 103 static struct physmap_flash_data cpuat91_flash_data = {
 104         .width          = 2,
 105 };
 106
 107 static struct resource cpuat91_flash_resource = {
 108         .start          = AT91_CHIPSELECT_0,
 109         .end            = AT91_CHIPSELECT_0 + SZ_16M - 1,
 110         .flags          = IORESOURCE_MEM,
 111 };
 112
 113 static struct platform_device cpuat91_norflash = {
 114         .name           = "physmap-flash",
 115         .id             = 0,
 116         .dev    = {
 117                 .platform_data  = &cpuat91_flash_data,
 118         },
 119         .resource       = &cpuat91_flash_resource,
 120         .num_resources  = 1,
 121 };
 122
 123 #ifdef CONFIG_MTD_PLATRAM
 124 struct platdata_mtd_ram at91_sram_pdata = {
 125         .mapname        = "SRAM",
 126         .bankwidth      = 2,
 127 };
 128
 129 static struct resource at91_sram_resource[] = {
 130         [0] = {
 131                 .start = AT91RM9200_SRAM_BASE,
 132                 .end   = AT91RM9200_SRAM_BASE + AT91RM9200_SRAM_SIZE - 1,
 133                 .flags = IORESOURCE_MEM,
 134         },
 135 };
 136
 137 static struct platform_device at91_sram = {
 138         .name           = "mtd-ram",
 139         .id             = 0,
 140         .resource       = at91_sram_resource,
 141         .num_resources  = ARRAY_SIZE(at91_sram_resource),
 142         .dev    = {
 143                 .platform_data = &at91_sram_pdata,
 144         },
 145 };
 146 #endif /* MTD_PLATRAM */
 147
 148 static struct platform_device *platform_devices[] __initdata = {
 149         &cpuat91_norflash,
 150 #ifdef CONFIG_MTD_PLATRAM
 151         &at91_sram,
 152 #endif /* CONFIG_MTD_PLATRAM */
 153 };
 154
 155 static void __init cpuat91_board_init(void)
 156 {
 157         /* Serial */
 158         at91_add_device_serial();
 159         /* LEDs. */
 160         at91_gpio_leds(cpuat91_leds, ARRAY_SIZE(cpuat91_leds));
 161         /* Ethernet */
 162         at91_add_device_eth(&cpuat91_eth_data);
 163         /* USB Host */
 164         at91_add_device_usbh(&cpuat91_usbh_data);
 165         /* USB Device */
 166         at91_add_device_udc(&cpuat91_udc_data);
 167         /* MMC */
 168         at91_add_device_mmc(0, &cpuat91_mmc_data);
 169         /* I2C */
 170         at91_add_device_i2c(NULL, 0);
 171         /* Platform devices */
 172         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 173 }
 174
 175 MACHINE_START(CPUAT91, "Eukrea")
 176         /* Maintainer: Eric Benard - EUKREA Electromatique */
 177         .timer          = &at91rm9200_timer,
 178         .map_io         = at91_map_io,
 179         .init_early     = cpuat91_init_early,
 180         .init_irq       = at91_init_irq_default,
 181         .init_machine   = cpuat91_board_init,
 182 MACHINE_END