linux/arch/arm/mach-at91/board-usb-a9263.c
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   1/*
   2 * linux/arch/arm/mach-at91/board-usb-a9263.c
   3 *
   4 *  Copyright (C) 2005 SAN People
   5 *  Copyright (C) 2007 Atmel Corporation.
   6 *  Copyright (C) 2007 Calao-systems
   7 *
   8 * This program is free software; you can redistribute it and/or modify
   9 * it under the terms of the GNU General Public License as published by
  10 * the Free Software Foundation; either version 2 of the License, or
  11 * (at your option) any later version.
  12 *
  13 * This program is distributed in the hope that it will be useful,
  14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 * GNU General Public License for more details.
  17 *
  18 * You should have received a copy of the GNU General Public License
  19 * along with this program; if not, write to the Free Software
  20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21 */
  22
  23#include <linux/types.h>
  24#include <linux/init.h>
  25#include <linux/mm.h>
  26#include <linux/module.h>
  27#include <linux/platform_device.h>
  28#include <linux/spi/spi.h>
  29#include <linux/gpio_keys.h>
  30#include <linux/input.h>
  31
  32#include <asm/setup.h>
  33#include <asm/mach-types.h>
  34#include <asm/irq.h>
  35
  36#include <asm/mach/arch.h>
  37#include <asm/mach/map.h>
  38#include <asm/mach/irq.h>
  39
  40#include <mach/hardware.h>
  41#include <mach/board.h>
  42#include <mach/gpio.h>
  43#include <mach/at91sam9_smc.h>
  44#include <mach/at91_shdwc.h>
  45
  46#include "sam9_smc.h"
  47#include "generic.h"
  48
  49
  50static void __init ek_map_io(void)
  51{
  52        /* Initialize processor: 12.00 MHz crystal */
  53        at91sam9263_initialize(12000000);
  54
  55        /* DBGU on ttyS0. (Rx & Tx only) */
  56        at91_register_uart(0, 0, 0);
  57
  58        /* set serial console to ttyS0 (ie, DBGU) */
  59        at91_set_serial_console(0);
  60}
  61
  62static void __init ek_init_irq(void)
  63{
  64        at91sam9263_init_interrupts(NULL);
  65}
  66
  67
  68/*
  69 * USB Host port
  70 */
  71static struct at91_usbh_data __initdata ek_usbh_data = {
  72        .ports          = 2,
  73};
  74
  75/*
  76 * USB Device port
  77 */
  78static struct at91_udc_data __initdata ek_udc_data = {
  79        .vbus_pin       = AT91_PIN_PB11,
  80        .pullup_pin     = 0,            /* pull-up driven by UDC */
  81};
  82
  83/*
  84 * SPI devices.
  85 */
  86static struct spi_board_info ek_spi_devices[] = {
  87#if !defined(CONFIG_MMC_AT91)
  88        {       /* DataFlash chip */
  89                .modalias       = "mtd_dataflash",
  90                .chip_select    = 0,
  91                .max_speed_hz   = 15 * 1000 * 1000,
  92                .bus_num        = 0,
  93        }
  94#endif
  95};
  96
  97/*
  98 * MACB Ethernet device
  99 */
 100static struct at91_eth_data __initdata ek_macb_data = {
 101        .phy_irq_pin    = AT91_PIN_PE31,
 102        .is_rmii        = 1,
 103};
 104
 105/*
 106 * NAND flash
 107 */
 108static struct mtd_partition __initdata ek_nand_partition[] = {
 109        {
 110                .name   = "Linux Kernel",
 111                .offset = 0,
 112                .size   = SZ_16M,
 113        },
 114        {
 115                .name   = "Root FS",
 116                .offset = MTDPART_OFS_NXTBLK,
 117                .size   = 120 * SZ_1M,
 118        },
 119        {
 120                .name   = "FS",
 121                .offset = MTDPART_OFS_NXTBLK,
 122                .size   = 120 * SZ_1M,
 123        }
 124};
 125
 126static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 127{
 128        *num_partitions = ARRAY_SIZE(ek_nand_partition);
 129        return ek_nand_partition;
 130}
 131
 132static struct atmel_nand_data __initdata ek_nand_data = {
 133        .ale            = 21,
 134        .cle            = 22,
 135//      .det_pin        = ... not connected
 136        .rdy_pin        = AT91_PIN_PA22,
 137        .enable_pin     = AT91_PIN_PD15,
 138        .partition_info = nand_partitions,
 139};
 140
 141static struct sam9_smc_config __initdata ek_nand_smc_config = {
 142        .ncs_read_setup         = 0,
 143        .nrd_setup              = 1,
 144        .ncs_write_setup        = 0,
 145        .nwe_setup              = 1,
 146
 147        .ncs_read_pulse         = 3,
 148        .nrd_pulse              = 3,
 149        .ncs_write_pulse        = 3,
 150        .nwe_pulse              = 3,
 151
 152        .read_cycle             = 5,
 153        .write_cycle            = 5,
 154
 155        .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 156        .tdf_cycles             = 2,
 157};
 158
 159static void __init ek_add_device_nand(void)
 160{
 161        /* configure chip-select 3 (NAND) */
 162        sam9_smc_configure(3, &ek_nand_smc_config);
 163
 164        at91_add_device_nand(&ek_nand_data);
 165}
 166
 167
 168/*
 169 * GPIO Buttons
 170 */
 171#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 172static struct gpio_keys_button ek_buttons[] = {
 173        {       /* USER PUSH BUTTON */
 174                .code           = KEY_ENTER,
 175                .gpio           = AT91_PIN_PB10,
 176                .active_low     = 1,
 177                .desc           = "user_pb",
 178                .wakeup         = 1,
 179        }
 180};
 181
 182static struct gpio_keys_platform_data ek_button_data = {
 183        .buttons        = ek_buttons,
 184        .nbuttons       = ARRAY_SIZE(ek_buttons),
 185};
 186
 187static struct platform_device ek_button_device = {
 188        .name           = "gpio-keys",
 189        .id             = -1,
 190        .num_resources  = 0,
 191        .dev            = {
 192                .platform_data  = &ek_button_data,
 193        }
 194};
 195
 196static void __init ek_add_device_buttons(void)
 197{
 198        at91_set_GPIO_periph(AT91_PIN_PB10, 1); /* user push button, pull up enabled */
 199        at91_set_deglitch(AT91_PIN_PB10, 1);
 200
 201        platform_device_register(&ek_button_device);
 202}
 203#else
 204static void __init ek_add_device_buttons(void) {}
 205#endif
 206
 207/*
 208 * LEDs
 209 */
 210static struct gpio_led ek_leds[] = {
 211        {       /* user_led (green) */
 212                .name                   = "user_led",
 213                .gpio                   = AT91_PIN_PB21,
 214                .active_low             = 1,
 215                .default_trigger        = "heartbeat",
 216        }
 217};
 218
 219
 220static void __init ek_board_init(void)
 221{
 222        /* Serial */
 223        at91_add_device_serial();
 224        /* USB Host */
 225        at91_add_device_usbh(&ek_usbh_data);
 226        /* USB Device */
 227        at91_add_device_udc(&ek_udc_data);
 228        /* SPI */
 229        at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 230        /* Ethernet */
 231        at91_add_device_eth(&ek_macb_data);
 232        /* NAND */
 233        ek_add_device_nand();
 234        /* I2C */
 235        at91_add_device_i2c(NULL, 0);
 236        /* Push Buttons */
 237        ek_add_device_buttons();
 238        /* LEDs */
 239        at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 240        /* shutdown controller, wakeup button (5 msec low) */
 241        at91_sys_write(AT91_SHDW_MR, AT91_SHDW_CPTWK0_(10) | AT91_SHDW_WKMODE0_LOW
 242                                | AT91_SHDW_RTTWKEN);
 243}
 244
 245MACHINE_START(USB_A9263, "CALAO USB_A9263")
 246        /* Maintainer: calao-systems */
 247        .phys_io        = AT91_BASE_SYS,
 248        .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 249        .boot_params    = AT91_SDRAM_BASE + 0x100,
 250        .timer          = &at91sam926x_timer,
 251        .map_io         = ek_map_io,
 252        .init_irq       = ek_init_irq,
 253        .init_machine   = ek_board_init,
 254MACHINE_END
 255