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 macb_platform_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         .vbus_pin       = {-EINVAL, -EINVAL},
  74         .overcurrent_pin= {-EINVAL, -EINVAL},
  75 };
  76
  77 /*
  78  * SD/MC
  79  */
  80 static struct at91_mmc_data rsi_ews_mmc_data __initdata = {
  81         .slot_b         = 0,
  82         .wire4          = 1,
  83         .det_pin        = AT91_PIN_PB27,
  84         .wp_pin         = AT91_PIN_PB29,
  85 };
  86
  87 /*
  88  * I2C
  89  */
  90 static struct i2c_board_info rsi_ews_i2c_devices[] __initdata = {
  91         {
  92                 I2C_BOARD_INFO("ds1337", 0x68),
  93         },
  94         {
  95                 I2C_BOARD_INFO("24c01", 0x50),
  96         }
  97 };
  98
  99 /*
 100  * LEDs
 101  */
 102 static struct gpio_led rsi_ews_leds[] = {
 103         {
 104                 .name                   = "led0",
 105                 .gpio                   = AT91_PIN_PB6,
 106                 .active_low             = 0,
 107         },
 108         {
 109                 .name                   = "led1",
 110                 .gpio                   = AT91_PIN_PB7,
 111                 .active_low             = 0,
 112         },
 113         {
 114                 .name                   = "led2",
 115                 .gpio                   = AT91_PIN_PB8,
 116                 .active_low             = 0,
 117         },
 118         {
 119                 .name                   = "led3",
 120                 .gpio                   = AT91_PIN_PB9,
 121                 .active_low             = 0,
 122         },
 123 };
 124
 125 /*
 126  * DataFlash
 127  */
 128 static struct spi_board_info rsi_ews_spi_devices[] = {
 129         {       /* DataFlash chip 1*/
 130                 .modalias       = "mtd_dataflash",
 131                 .chip_select    = 0,
 132                 .max_speed_hz   = 5 * 1000 * 1000,
 133         },
 134         {       /* DataFlash chip 2*/
 135                 .modalias       = "mtd_dataflash",
 136                 .chip_select    = 1,
 137                 .max_speed_hz   = 5 * 1000 * 1000,
 138         },
 139 };
 140
 141 /*
 142  * NOR flash
 143  */
 144 static struct mtd_partition rsiews_nor_partitions[] = {
 145         {
 146                 .name           = "boot",
 147                 .offset         = 0,
 148                 .size           = 3 * SZ_128K,
 149                 .mask_flags     = MTD_WRITEABLE
 150         },
 151         {
 152                 .name           = "kernel",
 153                 .offset         = MTDPART_OFS_NXTBLK,
 154                 .size           = SZ_2M - (3 * SZ_128K)
 155         },
 156         {
 157                 .name           = "root",
 158                 .offset         = MTDPART_OFS_NXTBLK,
 159                 .size           = SZ_8M
 160         },
 161         {
 162                 .name           = "kernelupd",
 163                 .offset         = MTDPART_OFS_NXTBLK,
 164                 .size           = 3 * SZ_512K,
 165                 .mask_flags     = MTD_WRITEABLE
 166         },
 167         {
 168                 .name           = "rootupd",
 169                 .offset         = MTDPART_OFS_NXTBLK,
 170                 .size           = 9 * SZ_512K,
 171                 .mask_flags     = MTD_WRITEABLE
 172         },
 173 };
 174
 175 static struct physmap_flash_data rsiews_nor_data = {
 176         .width          = 2,
 177         .parts          = rsiews_nor_partitions,
 178         .nr_parts       = ARRAY_SIZE(rsiews_nor_partitions),
 179 };
 180
 181 #define NOR_BASE        AT91_CHIPSELECT_0
 182 #define NOR_SIZE        SZ_16M
 183
 184 static struct resource nor_flash_resources[] = {
 185         {
 186                 .start  = NOR_BASE,
 187                 .end    = NOR_BASE + NOR_SIZE - 1,
 188                 .flags  = IORESOURCE_MEM,
 189         }
 190 };
 191
 192 static struct platform_device rsiews_nor_flash = {
 193         .name           = "physmap-flash",
 194         .id             = 0,
 195         .dev            = {
 196                                 .platform_data  = &rsiews_nor_data,
 197         },
 198         .resource       = nor_flash_resources,
 199         .num_resources  = ARRAY_SIZE(nor_flash_resources),
 200 };
 201
 202 /*
 203  * Init Func
 204  */
 205 static void __init rsi_ews_board_init(void)
 206 {
 207         /* Serial */
 208         at91_add_device_serial();
 209         at91_set_gpio_output(AT91_PIN_PA21, 0);
 210         /* Ethernet */
 211         at91_add_device_eth(&rsi_ews_eth_data);
 212         /* USB Host */
 213         at91_add_device_usbh(&rsi_ews_usbh_data);
 214         /* I2C */
 215         at91_add_device_i2c(rsi_ews_i2c_devices,
 216                         ARRAY_SIZE(rsi_ews_i2c_devices));
 217         /* SPI */
 218         at91_add_device_spi(rsi_ews_spi_devices,
 219                         ARRAY_SIZE(rsi_ews_spi_devices));
 220         /* MMC */
 221         at91_add_device_mmc(0, &rsi_ews_mmc_data);
 222         /* NOR Flash */
 223         platform_device_register(&rsiews_nor_flash);
 224         /* LEDs */
 225         at91_gpio_leds(rsi_ews_leds, ARRAY_SIZE(rsi_ews_leds));
 226 }
 227
 228 MACHINE_START(RSI_EWS, "RSI EWS")
 229         /* Maintainer: Josef Holzmayr <holzmayr@rsi-elektrotechnik.de> */
 230         .timer          = &at91rm9200_timer,
 231         .map_io         = at91_map_io,
 232         .init_early     = rsi_ews_init_early,
 233         .init_irq       = at91_init_irq_default,
 234         .init_machine   = rsi_ews_board_init,
 235 MACHINE_END