arch/arm/mach-at91/board-rsi-ews.c

   1 /*
   2  * board-rsi-ews.c
   3  *
   4  *  Copyright (C)
   5  *  2005 SAN People,
   6  *  2008-2011 R-S-I Elektrotechnik GmbH & Co. KG
   7  *
   8  * Licensed under GPLv2 or later.
   9  */
  10
  11 #include <linux/types.h>
  12 #include <linux/init.h>
  13 #include <linux/mm.h>
  14 #include <linux/module.h>
  15 #include <linux/platform_device.h>
  16 #include <linux/spi/spi.h>
  17 #include <linux/mtd/physmap.h>
  18
  19 #include <asm/setup.h>
  20 #include <asm/mach-types.h>
  21 #include <asm/irq.h>
  22
  23 #include <asm/mach/arch.h>
  24 #include <asm/mach/map.h>
  25 #include <asm/mach/irq.h>
  26
  27 #include <mach/hardware.h>
  28 #include <mach/board.h>
  29
  30 #include <linux/gpio.h>
  31
  32 #include "generic.h"
  33
  34 static void __init rsi_ews_init_early(void)
  35 {
  36         /* Initialize processor: 18.432 MHz crystal */
  37         at91_initialize(18432000);
  38
  39         /* Setup the LEDs */
  40         at91_init_leds(AT91_PIN_PB6, AT91_PIN_PB9);
  41
  42         /* DBGU on ttyS0. (Rx & Tx only) */
  43         /* This one is for debugging */
  44         at91_register_uart(0, 0, 0);
  45
  46         /* USART1 on ttyS2. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
  47         /* Dialin/-out modem interface */
  48         at91_register_uart(AT91RM9200_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS
  49                            | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
  50                            | ATMEL_UART_RI);
  51
  52         /* USART3 on ttyS4. (Rx, Tx, RTS) */
  53         /* RS485 communication */
  54         at91_register_uart(AT91RM9200_ID_US3, 4, ATMEL_UART_RTS);
  55
  56         /* set serial console to ttyS0 (ie, DBGU) */
  57         at91_set_serial_console(0);
  58 }
  59
  60 /*
  61  * Ethernet
  62  */
  63 static struct at91_eth_data rsi_ews_eth_data __initdata = {
  64         .phy_irq_pin    = AT91_PIN_PC4,
  65         .is_rmii        = 1,
  66 };
  67
  68 /*
  69  * USB Host
  70  */
  71 static struct at91_usbh_data rsi_ews_usbh_data __initdata = {
  72         .ports          = 1,
  73 };
  74
  75 /*
  76  * SD/MC
  77  */
  78 static struct at91_mmc_data rsi_ews_mmc_data __initdata = {
  79         .slot_b         = 0,
  80         .wire4          = 1,
  81         .det_pin        = AT91_PIN_PB27,
  82         .wp_pin         = AT91_PIN_PB29,
  83 };
  84
  85 /*
  86  * I2C
  87  */
  88 static struct i2c_board_info rsi_ews_i2c_devices[] __initdata = {
  89         {
  90                 I2C_BOARD_INFO("ds1337", 0x68),
  91         },
  92         {
  93                 I2C_BOARD_INFO("24c01", 0x50),
  94         }
  95 };
  96
  97 /*
  98  * LEDs
  99  */
 100 static struct gpio_led rsi_ews_leds[] = {
 101         {
 102                 .name                   = "led0",
 103                 .gpio                   = AT91_PIN_PB6,
 104                 .active_low             = 0,
 105         },
 106         {
 107                 .name                   = "led1",
 108                 .gpio                   = AT91_PIN_PB7,
 109                 .active_low             = 0,
 110         },
 111         {
 112                 .name                   = "led2",
 113                 .gpio                   = AT91_PIN_PB8,
 114                 .active_low             = 0,
 115         },
 116         {
 117                 .name                   = "led3",
 118                 .gpio                   = AT91_PIN_PB9,
 119                 .active_low             = 0,
 120         },
 121 };
 122
 123 /*
 124  * DataFlash
 125  */
 126 static struct spi_board_info rsi_ews_spi_devices[] = {
 127         {       /* DataFlash chip 1*/
 128                 .modalias       = "mtd_dataflash",
 129                 .chip_select    = 0,
 130                 .max_speed_hz   = 5 * 1000 * 1000,
 131         },
 132         {       /* DataFlash chip 2*/
 133                 .modalias       = "mtd_dataflash",
 134                 .chip_select    = 1,
 135                 .max_speed_hz   = 5 * 1000 * 1000,
 136         },
 137 };
 138
 139 /*
 140  * NOR flash
 141  */
 142 static struct mtd_partition rsiews_nor_partitions[] = {
 143         {
 144                 .name           = "boot",
 145                 .offset         = 0,
 146                 .size           = 3 * SZ_128K,
 147                 .mask_flags     = MTD_WRITEABLE
 148         },
 149         {
 150                 .name           = "kernel",
 151                 .offset         = MTDPART_OFS_NXTBLK,
 152                 .size           = SZ_2M - (3 * SZ_128K)
 153         },
 154         {
 155                 .name           = "root",
 156                 .offset         = MTDPART_OFS_NXTBLK,
 157                 .size           = SZ_8M
 158         },
 159         {
 160                 .name           = "kernelupd",
 161                 .offset         = MTDPART_OFS_NXTBLK,
 162                 .size           = 3 * SZ_512K,
 163                 .mask_flags     = MTD_WRITEABLE
 164         },
 165         {
 166                 .name           = "rootupd",
 167                 .offset         = MTDPART_OFS_NXTBLK,
 168                 .size           = 9 * SZ_512K,
 169                 .mask_flags     = MTD_WRITEABLE
 170         },
 171 };
 172
 173 static struct physmap_flash_data rsiews_nor_data = {
 174         .width          = 2,
 175         .parts          = rsiews_nor_partitions,
 176         .nr_parts       = ARRAY_SIZE(rsiews_nor_partitions),
 177 };
 178
 179 #define NOR_BASE        AT91_CHIPSELECT_0
 180 #define NOR_SIZE        SZ_16M
 181
 182 static struct resource nor_flash_resources[] = {
 183         {
 184                 .start  = NOR_BASE,
 185                 .end    = NOR_BASE + NOR_SIZE - 1,
 186                 .flags  = IORESOURCE_MEM,
 187         }
 188 };
 189
 190 static struct platform_device rsiews_nor_flash = {
 191         .name           = "physmap-flash",
 192         .id             = 0,
 193         .dev            = {
 194                                 .platform_data  = &rsiews_nor_data,
 195         },
 196         .resource       = nor_flash_resources,
 197         .num_resources  = ARRAY_SIZE(nor_flash_resources),
 198 };
 199
 200 /*
 201  * Init Func
 202  */
 203 static void __init rsi_ews_board_init(void)
 204 {
 205         /* Serial */
 206         at91_add_device_serial();
 207         at91_set_gpio_output(AT91_PIN_PA21, 0);
 208         /* Ethernet */
 209         at91_add_device_eth(&rsi_ews_eth_data);
 210         /* USB Host */
 211         at91_add_device_usbh(&rsi_ews_usbh_data);
 212         /* I2C */
 213         at91_add_device_i2c(rsi_ews_i2c_devices,
 214                         ARRAY_SIZE(rsi_ews_i2c_devices));
 215         /* SPI */
 216         at91_add_device_spi(rsi_ews_spi_devices,
 217                         ARRAY_SIZE(rsi_ews_spi_devices));
 218         /* MMC */
 219         at91_add_device_mmc(0, &rsi_ews_mmc_data);
 220         /* NOR Flash */
 221         platform_device_register(&rsiews_nor_flash);
 222         /* LEDs */
 223         at91_gpio_leds(rsi_ews_leds, ARRAY_SIZE(rsi_ews_leds));
 224 }
 225
 226 MACHINE_START(RSI_EWS, "RSI EWS")
 227         /* Maintainer: Josef Holzmayr <holzmayr@rsi-elektrotechnik.de> */
 228         .timer          = &at91rm9200_timer,
 229         .map_io         = at91_map_io,
 230         .init_early     = rsi_ews_init_early,
 231         .init_irq       = at91_init_irq_default,
 232         .init_machine   = rsi_ews_board_init,
 233 MACHINE_END