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