arch/arm/mach-at91/board-usb-a9263.c

   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/arch/hardware.h>
  33 #include <asm/setup.h>
  34 #include <asm/mach-types.h>
  35 #include <asm/irq.h>
  36
  37 #include <asm/mach/arch.h>
  38 #include <asm/mach/map.h>
  39 #include <asm/mach/irq.h>
  40
  41 #include <asm/arch/board.h>
  42 #include <asm/arch/gpio.h>
  43 #include <asm/arch/at91_shdwc.h>
  44
  45 #include "generic.h"
  46
  47
  48 static void __init ek_map_io(void)
  49 {
  50         /* Initialize processor: 12.00 MHz crystal */
  51         at91sam9263_initialize(12000000);
  52
  53         /* DGBU on ttyS0. (Rx & Tx only) */
  54         at91_register_uart(0, 0, 0);
  55
  56         /* set serial console to ttyS0 (ie, DBGU) */
  57         at91_set_serial_console(0);
  58 }
  59
  60 static void __init ek_init_irq(void)
  61 {
  62         at91sam9263_init_interrupts(NULL);
  63 }
  64
  65
  66 /*
  67  * USB Host port
  68  */
  69 static struct at91_usbh_data __initdata ek_usbh_data = {
  70         .ports          = 2,
  71 };
  72
  73 /*
  74  * USB Device port
  75  */
  76 static struct at91_udc_data __initdata ek_udc_data = {
  77         .vbus_pin       = AT91_PIN_PB11,
  78         .pullup_pin     = 0,            /* pull-up driven by UDC */
  79 };
  80
  81 /*
  82  * SPI devices.
  83  */
  84 static struct spi_board_info ek_spi_devices[] = {
  85 #if !defined(CONFIG_MMC_AT91)
  86         {       /* DataFlash chip */
  87                 .modalias       = "mtd_dataflash",
  88                 .chip_select    = 0,
  89                 .max_speed_hz   = 15 * 1000 * 1000,
  90                 .bus_num        = 0,
  91         }
  92 #endif
  93 };
  94
  95 /*
  96  * MACB Ethernet device
  97  */
  98 static struct at91_eth_data __initdata ek_macb_data = {
  99         .phy_irq_pin    = AT91_PIN_PE31,
 100         .is_rmii        = 1,
 101 };
 102
 103 /*
 104  * NAND flash
 105  */
 106 static struct mtd_partition __initdata ek_nand_partition[] = {
 107         {
 108                 .name   = "Linux Kernel",
 109                 .offset = 0x00000000,
 110                 .size   = 16 * 1024 * 1024,
 111         },
 112         {
 113                 .name   = "Root FS",
 114                 .offset = 0x01000000,
 115                 .size   = 120 * 1024 * 1024,
 116         },
 117         {
 118                 .name   = "FS",
 119                 .offset = 0x08800000,
 120                 .size   = 120 * 1024 * 1024,
 121         }
 122 };
 123
 124 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 125 {
 126         *num_partitions = ARRAY_SIZE(ek_nand_partition);
 127         return ek_nand_partition;
 128 }
 129
 130 static struct atmel_nand_data __initdata ek_nand_data = {
 131         .ale            = 21,
 132         .cle            = 22,
 133 //      .det_pin        = ... not connected
 134         .rdy_pin        = AT91_PIN_PA22,
 135         .enable_pin     = AT91_PIN_PD15,
 136         .partition_info = nand_partitions,
 137 #if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
 138         .bus_width_16   = 1,
 139 #else
 140         .bus_width_16   = 0,
 141 #endif
 142 };
 143
 144 /*
 145  * GPIO Buttons
 146  */
 147 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 148 static struct gpio_keys_button ek_buttons[] = {
 149         {       /* USER PUSH BUTTON */
 150                 .code           = KEY_ENTER,
 151                 .gpio           = AT91_PIN_PB10,
 152                 .active_low     = 1,
 153                 .desc           = "user_pb",
 154                 .wakeup         = 1,
 155         }
 156 };
 157
 158 static struct gpio_keys_platform_data ek_button_data = {
 159         .buttons        = ek_buttons,
 160         .nbuttons       = ARRAY_SIZE(ek_buttons),
 161 };
 162
 163 static struct platform_device ek_button_device = {
 164         .name           = "gpio-keys",
 165         .id             = -1,
 166         .num_resources  = 0,
 167         .dev            = {
 168                 .platform_data  = &ek_button_data,
 169         }
 170 };
 171
 172 static void __init ek_add_device_buttons(void)
 173 {
 174         at91_set_GPIO_periph(AT91_PIN_PB10, 1); /* user push button, pull up enabled */
 175         at91_set_deglitch(AT91_PIN_PB10, 1);
 176
 177         platform_device_register(&ek_button_device);
 178 }
 179 #else
 180 static void __init ek_add_device_buttons(void) {}
 181 #endif
 182
 183 /*
 184  * LEDs
 185  */
 186 static struct gpio_led ek_leds[] = {
 187         {       /* user_led (green) */
 188                 .name                   = "user_led",
 189                 .gpio                   = AT91_PIN_PB21,
 190                 .active_low             = 1,
 191                 .default_trigger        = "heartbeat",
 192         }
 193 };
 194
 195
 196 static void __init ek_board_init(void)
 197 {
 198         /* Serial */
 199         at91_add_device_serial();
 200         /* USB Host */
 201         at91_add_device_usbh(&ek_usbh_data);
 202         /* USB Device */
 203         at91_add_device_udc(&ek_udc_data);
 204         /* SPI */
 205         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 206         /* Ethernet */
 207         at91_add_device_eth(&ek_macb_data);
 208         /* NAND */
 209         at91_add_device_nand(&ek_nand_data);
 210         /* I2C */
 211         at91_add_device_i2c(NULL, 0);
 212         /* Push Buttons */
 213         ek_add_device_buttons();
 214         /* LEDs */
 215         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 216         /* shutdown controller, wakeup button (5 msec low) */
 217         at91_sys_write(AT91_SHDW_MR, AT91_SHDW_CPTWK0_(10) | AT91_SHDW_WKMODE0_LOW
 218                                 | AT91_SHDW_RTTWKEN);
 219 }
 220
 221 MACHINE_START(USB_A9263, "CALAO USB_A9263")
 222         /* Maintainer: calao-systems */
 223         .phys_io        = AT91_BASE_SYS,
 224         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 225         .boot_params    = AT91_SDRAM_BASE + 0x100,
 226         .timer          = &at91sam926x_timer,
 227         .map_io         = ek_map_io,
 228         .init_irq       = ek_init_irq,
 229         .init_machine   = ek_board_init,
 230 MACHINE_END