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 #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         at91rm9200_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 void __init cpuat91_init_irq(void)
  86 {
  87         at91rm9200_init_interrupts(NULL);
  88 }
  89
  90 static struct at91_eth_data __initdata cpuat91_eth_data = {
  91         .is_rmii        = 1,
  92 };
  93
  94 static struct at91_usbh_data __initdata cpuat91_usbh_data = {
  95         .ports          = 1,
  96 };
  97
  98 static struct at91_udc_data __initdata cpuat91_udc_data = {
  99         .vbus_pin       = AT91_PIN_PC15,
 100         .pullup_pin     = AT91_PIN_PC14,
 101 };
 102
 103 static struct at91_mmc_data __initdata cpuat91_mmc_data = {
 104         .det_pin        = AT91_PIN_PC2,
 105         .wire4          = 1,
 106 };
 107
 108 static struct physmap_flash_data cpuat91_flash_data = {
 109         .width          = 2,
 110 };
 111
 112 static struct resource cpuat91_flash_resource = {
 113         .start          = AT91_CHIPSELECT_0,
 114         .end            = AT91_CHIPSELECT_0 + SZ_16M - 1,
 115         .flags          = IORESOURCE_MEM,
 116 };
 117
 118 static struct platform_device cpuat91_norflash = {
 119         .name           = "physmap-flash",
 120         .id             = 0,
 121         .dev    = {
 122                 .platform_data  = &cpuat91_flash_data,
 123         },
 124         .resource       = &cpuat91_flash_resource,
 125         .num_resources  = 1,
 126 };
 127
 128 #ifdef CONFIG_MTD_PLATRAM
 129 struct platdata_mtd_ram at91_sram_pdata = {
 130         .mapname        = "SRAM",
 131         .bankwidth      = 2,
 132 };
 133
 134 static struct resource at91_sram_resource[] = {
 135         [0] = {
 136                 .start = AT91RM9200_SRAM_BASE,
 137                 .end   = AT91RM9200_SRAM_BASE + AT91RM9200_SRAM_SIZE - 1,
 138                 .flags = IORESOURCE_MEM,
 139         },
 140 };
 141
 142 static struct platform_device at91_sram = {
 143         .name           = "mtd-ram",
 144         .id             = 0,
 145         .resource       = at91_sram_resource,
 146         .num_resources  = ARRAY_SIZE(at91_sram_resource),
 147         .dev    = {
 148                 .platform_data = &at91_sram_pdata,
 149         },
 150 };
 151 #endif /* MTD_PLATRAM */
 152
 153 static struct platform_device *platform_devices[] __initdata = {
 154         &cpuat91_norflash,
 155 #ifdef CONFIG_MTD_PLATRAM
 156         &at91_sram,
 157 #endif /* CONFIG_MTD_PLATRAM */
 158 };
 159
 160 static void __init cpuat91_board_init(void)
 161 {
 162         /* Serial */
 163         at91_add_device_serial();
 164         /* LEDs. */
 165         at91_gpio_leds(cpuat91_leds, ARRAY_SIZE(cpuat91_leds));
 166         /* Ethernet */
 167         at91_add_device_eth(&cpuat91_eth_data);
 168         /* USB Host */
 169         at91_add_device_usbh(&cpuat91_usbh_data);
 170         /* USB Device */
 171         at91_add_device_udc(&cpuat91_udc_data);
 172         /* MMC */
 173         at91_add_device_mmc(0, &cpuat91_mmc_data);
 174         /* I2C */
 175         at91_add_device_i2c(NULL, 0);
 176         /* Platform devices */
 177         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 178 }
 179
 180 MACHINE_START(CPUAT91, "Eukrea")
 181         /* Maintainer: Eric Benard - EUKREA Electromatique */
 182         .timer          = &at91rm9200_timer,
 183         .map_io         = at91rm9200_map_io,
 184         .init_early     = cpuat91_init_early,
 185         .init_irq       = cpuat91_init_irq,
 186         .init_machine   = cpuat91_board_init,
 187 MACHINE_END