arch/arm/mach-at91/board-sam9g20ek.c

   1 /*
   2  *  Copyright (C) 2005 SAN People
   3  *  Copyright (C) 2008 Atmel
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18  */
  19
  20 #include <linux/types.h>
  21 #include <linux/init.h>
  22 #include <linux/mm.h>
  23 #include <linux/module.h>
  24 #include <linux/platform_device.h>
  25 #include <linux/spi/spi.h>
  26 #include <linux/spi/at73c213.h>
  27 #include <linux/clk.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
  41 #include "generic.h"
  42
  43
  44 static void __init ek_map_io(void)
  45 {
  46         /* Initialize processor: 18.432 MHz crystal */
  47         at91sam9260_initialize(18432000);
  48
  49         /* DGBU on ttyS0. (Rx & Tx only) */
  50         at91_register_uart(0, 0, 0);
  51
  52         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
  53         at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
  54                            | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
  55                            | ATMEL_UART_RI);
  56
  57         /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
  58         at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
  59
  60         /* set serial console to ttyS0 (ie, DBGU) */
  61         at91_set_serial_console(0);
  62 }
  63
  64 static void __init ek_init_irq(void)
  65 {
  66         at91sam9260_init_interrupts(NULL);
  67 }
  68
  69
  70 /*
  71  * USB Host port
  72  */
  73 static struct at91_usbh_data __initdata ek_usbh_data = {
  74         .ports          = 2,
  75 };
  76
  77 /*
  78  * USB Device port
  79  */
  80 static struct at91_udc_data __initdata ek_udc_data = {
  81         .vbus_pin       = AT91_PIN_PC5,
  82         .pullup_pin     = 0,            /* pull-up driven by UDC */
  83 };
  84
  85
  86 /*
  87  * SPI devices.
  88  */
  89 static struct spi_board_info ek_spi_devices[] = {
  90 #if !defined(CONFIG_MMC_AT91)
  91         {       /* DataFlash chip */
  92                 .modalias       = "mtd_dataflash",
  93                 .chip_select    = 1,
  94                 .max_speed_hz   = 15 * 1000 * 1000,
  95                 .bus_num        = 0,
  96         },
  97 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
  98         {       /* DataFlash card */
  99                 .modalias       = "mtd_dataflash",
 100                 .chip_select    = 0,
 101                 .max_speed_hz   = 15 * 1000 * 1000,
 102                 .bus_num        = 0,
 103         },
 104 #endif
 105 #endif
 106 };
 107
 108
 109 /*
 110  * MACB Ethernet device
 111  */
 112 static struct at91_eth_data __initdata ek_macb_data = {
 113         .phy_irq_pin    = AT91_PIN_PA7,
 114         .is_rmii        = 1,
 115 };
 116
 117
 118 /*
 119  * NAND flash
 120  */
 121 static struct mtd_partition __initdata ek_nand_partition[] = {
 122         {
 123                 .name   = "Bootstrap",
 124                 .offset = 0,
 125                 .size   = 4 * 1024 * 1024,
 126         },
 127         {
 128                 .name   = "Partition 1",
 129                 .offset = 4 * 1024 * 1024,
 130                 .size   = 60 * 1024 * 1024,
 131         },
 132         {
 133                 .name   = "Partition 2",
 134                 .offset = 64 * 1024 * 1024,
 135                 .size   = MTDPART_SIZ_FULL,
 136         },
 137 };
 138
 139 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 140 {
 141         *num_partitions = ARRAY_SIZE(ek_nand_partition);
 142         return ek_nand_partition;
 143 }
 144
 145 /* det_pin is not connected */
 146 static struct atmel_nand_data __initdata ek_nand_data = {
 147         .ale            = 21,
 148         .cle            = 22,
 149         .rdy_pin        = AT91_PIN_PC13,
 150         .enable_pin     = AT91_PIN_PC14,
 151         .partition_info = nand_partitions,
 152 #if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16)
 153         .bus_width_16   = 1,
 154 #else
 155         .bus_width_16   = 0,
 156 #endif
 157 };
 158
 159
 160 /*
 161  * MCI (SD/MMC)
 162  * det_pin, wp_pin and vcc_pin are not connected
 163  */
 164 static struct at91_mmc_data __initdata ek_mmc_data = {
 165         .slot_b         = 1,
 166         .wire4          = 1,
 167 };
 168
 169
 170 /*
 171  * LEDs
 172  */
 173 static struct gpio_led ek_leds[] = {
 174         {       /* "bottom" led, green, userled1 to be defined */
 175                 .name                   = "ds5",
 176                 .gpio                   = AT91_PIN_PA6,
 177                 .active_low             = 1,
 178                 .default_trigger        = "none",
 179         },
 180         {       /* "power" led, yellow */
 181                 .name                   = "ds1",
 182                 .gpio                   = AT91_PIN_PA9,
 183                 .default_trigger        = "heartbeat",
 184         }
 185 };
 186
 187 static void __init ek_board_init(void)
 188 {
 189         /* Serial */
 190         at91_add_device_serial();
 191         /* USB Host */
 192         at91_add_device_usbh(&ek_usbh_data);
 193         /* USB Device */
 194         at91_add_device_udc(&ek_udc_data);
 195         /* SPI */
 196         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 197         /* NAND */
 198         at91_add_device_nand(&ek_nand_data);
 199         /* Ethernet */
 200         at91_add_device_eth(&ek_macb_data);
 201         /* MMC */
 202         at91_add_device_mmc(0, &ek_mmc_data);
 203         /* I2C */
 204         at91_add_device_i2c(NULL, 0);
 205         /* LEDs */
 206         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 207 }
 208
 209 MACHINE_START(AT91SAM9G20EK, "Atmel AT91SAM9G20-EK")
 210         /* Maintainer: Atmel */
 211         .phys_io        = AT91_BASE_SYS,
 212         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 213         .boot_params    = AT91_SDRAM_BASE + 0x100,
 214         .timer          = &at91sam926x_timer,
 215         .map_io         = ek_map_io,
 216         .init_irq       = ek_init_irq,
 217         .init_machine   = ek_board_init,
 218 MACHINE_END