arch/arm/mach-at91/board-sam9g20ek-2slot-mmc.c

   1 /*
   2  *  Copyright (C) 2005 SAN People
   3  *  Copyright (C) 2008 Atmel
   4  *  Copyright (C) 2009 Rob Emanuele
   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/spi/spi.h>
  27 #include <linux/spi/at73c213.h>
  28 #include <linux/clk.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/gpio.h>
  41 #include <mach/at91sam9_smc.h>
  42
  43 #include "sam9_smc.h"
  44 #include "generic.h"
  45
  46
  47 static void __init ek_map_io(void)
  48 {
  49         /* Initialize processor: 18.432 MHz crystal */
  50         at91sam9260_initialize(18432000);
  51
  52         /* DGBU on ttyS0. (Rx & Tx only) */
  53         at91_register_uart(0, 0, 0);
  54
  55         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
  56         at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
  57                            | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
  58                            | ATMEL_UART_RI);
  59
  60         /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
  61         at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
  62
  63         /* set serial console to ttyS0 (ie, DBGU) */
  64         at91_set_serial_console(0);
  65 }
  66
  67 static void __init ek_init_irq(void)
  68 {
  69         at91sam9260_init_interrupts(NULL);
  70 }
  71
  72
  73 /*
  74  * USB Host port
  75  */
  76 static struct at91_usbh_data __initdata ek_usbh_data = {
  77         .ports          = 2,
  78 };
  79
  80 /*
  81  * USB Device port
  82  */
  83 static struct at91_udc_data __initdata ek_udc_data = {
  84         .vbus_pin       = AT91_PIN_PC5,
  85         .pullup_pin     = 0,            /* pull-up driven by UDC */
  86 };
  87
  88
  89 /*
  90  * SPI devices.
  91  */
  92 static struct spi_board_info ek_spi_devices[] = {
  93 #if !(defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_AT91))
  94         {       /* DataFlash chip */
  95                 .modalias       = "mtd_dataflash",
  96                 .chip_select    = 1,
  97                 .max_speed_hz   = 15 * 1000 * 1000,
  98                 .bus_num        = 0,
  99         },
 100 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 101         {       /* DataFlash card */
 102                 .modalias       = "mtd_dataflash",
 103                 .chip_select    = 0,
 104                 .max_speed_hz   = 15 * 1000 * 1000,
 105                 .bus_num        = 0,
 106         },
 107 #endif
 108 #endif
 109 };
 110
 111
 112 /*
 113  * MACB Ethernet device
 114  */
 115 static struct at91_eth_data __initdata ek_macb_data = {
 116         .phy_irq_pin    = AT91_PIN_PB0,
 117         .is_rmii        = 1,
 118 };
 119
 120
 121 /*
 122  * NAND flash
 123  */
 124 static struct mtd_partition __initdata ek_nand_partition[] = {
 125         {
 126                 .name   = "Bootstrap",
 127                 .offset = 0,
 128                 .size   = 4 * SZ_1M,
 129         },
 130         {
 131                 .name   = "Partition 1",
 132                 .offset = MTDPART_OFS_NXTBLK,
 133                 .size   = 60 * SZ_1M,
 134         },
 135         {
 136                 .name   = "Partition 2",
 137                 .offset = MTDPART_OFS_NXTBLK,
 138                 .size   = MTDPART_SIZ_FULL,
 139         },
 140 };
 141
 142 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 143 {
 144         *num_partitions = ARRAY_SIZE(ek_nand_partition);
 145         return ek_nand_partition;
 146 }
 147
 148 /* det_pin is not connected */
 149 static struct atmel_nand_data __initdata ek_nand_data = {
 150         .ale            = 21,
 151         .cle            = 22,
 152         .rdy_pin        = AT91_PIN_PC13,
 153         .enable_pin     = AT91_PIN_PC14,
 154         .partition_info = nand_partitions,
 155 #if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16)
 156         .bus_width_16   = 1,
 157 #else
 158         .bus_width_16   = 0,
 159 #endif
 160 };
 161
 162 static struct sam9_smc_config __initdata ek_nand_smc_config = {
 163         .ncs_read_setup         = 0,
 164         .nrd_setup              = 2,
 165         .ncs_write_setup        = 0,
 166         .nwe_setup              = 2,
 167
 168         .ncs_read_pulse         = 4,
 169         .nrd_pulse              = 4,
 170         .ncs_write_pulse        = 4,
 171         .nwe_pulse              = 4,
 172
 173         .read_cycle             = 7,
 174         .write_cycle            = 7,
 175
 176         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
 177         .tdf_cycles             = 3,
 178 };
 179
 180 static void __init ek_add_device_nand(void)
 181 {
 182         /* setup bus-width (8 or 16) */
 183         if (ek_nand_data.bus_width_16)
 184                 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
 185         else
 186                 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
 187
 188         /* configure chip-select 3 (NAND) */
 189         sam9_smc_configure(3, &ek_nand_smc_config);
 190
 191         at91_add_device_nand(&ek_nand_data);
 192 }
 193
 194
 195 /*
 196  * MCI (SD/MMC)
 197  * wp_pin is not connected
 198  */
 199 #if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
 200 static struct mci_platform_data __initdata ek_mmc_data = {
 201         .slot[0] = {
 202                 .bus_width      = 4,
 203                 .detect_pin     = AT91_PIN_PC2,
 204                 .wp_pin         = -ENODEV,
 205         },
 206         .slot[1] = {
 207                 .bus_width      = 4,
 208                 .detect_pin     = AT91_PIN_PC9,
 209                 .wp_pin         = -ENODEV,
 210         },
 211
 212 };
 213 #else
 214 static struct at91_mmc_data __initdata ek_mmc_data = {
 215         .slot_b         = 1,    /* Only one slot so use slot B */
 216         .wire4          = 1,
 217         .det_pin        = AT91_PIN_PC9,
 218 };
 219 #endif
 220
 221 /*
 222  * LEDs
 223  */
 224 static struct gpio_led ek_leds[] = {
 225         {       /* "bottom" led, green, userled1 to be defined */
 226                 .name                   = "ds5",
 227                 .gpio                   = AT91_PIN_PB8,
 228                 .active_low             = 1,
 229                 .default_trigger        = "none",
 230         },
 231         {       /* "power" led, yellow */
 232                 .name                   = "ds1",
 233                 .gpio                   = AT91_PIN_PB9,
 234                 .default_trigger        = "heartbeat",
 235         }
 236 };
 237
 238 static struct i2c_board_info __initdata ek_i2c_devices[] = {
 239         {
 240                 I2C_BOARD_INFO("24c512", 0x50),
 241         },
 242 };
 243
 244
 245 static void __init ek_board_init(void)
 246 {
 247         /* Serial */
 248         at91_add_device_serial();
 249         /* USB Host */
 250         at91_add_device_usbh(&ek_usbh_data);
 251         /* USB Device */
 252         at91_add_device_udc(&ek_udc_data);
 253         /* SPI */
 254         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 255         /* NAND */
 256         ek_add_device_nand();
 257         /* Ethernet */
 258         at91_add_device_eth(&ek_macb_data);
 259         /* MMC */
 260 #if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
 261         at91_add_device_mci(0, &ek_mmc_data);
 262 #else
 263         at91_add_device_mmc(0, &ek_mmc_data);
 264 #endif
 265         /* I2C */
 266         at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
 267         /* LEDs */
 268         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 269         /* PCK0 provides MCLK to the WM8731 */
 270         at91_set_B_periph(AT91_PIN_PC1, 0);
 271         /* SSC (for WM8731) */
 272         at91_add_device_ssc(AT91SAM9260_ID_SSC, ATMEL_SSC_TX);
 273 }
 274
 275 MACHINE_START(AT91SAM9G20EK_2MMC, "Atmel AT91SAM9G20-EK 2 MMC Slot Mod")
 276         /* Maintainer: Rob Emanuele */
 277         .phys_io        = AT91_BASE_SYS,
 278         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 279         .boot_params    = AT91_SDRAM_BASE + 0x100,
 280         .timer          = &at91sam926x_timer,
 281         .map_io         = ek_map_io,
 282         .init_irq       = ek_init_irq,
 283         .init_machine   = ek_board_init,
 284 MACHINE_END