arch/arm/mach-at91/board-usb-a9260.c

   1 /*
   2  * linux/arch/arm/mach-at91/board-usb-a9260.c
   3  *
   4  *  Copyright (C) 2005 SAN People
   5  *  Copyright (C) 2006 Atmel
   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 #include <linux/clk.h>
  32
  33 #include <asm/arch/hardware.h>
  34 #include <asm/setup.h>
  35 #include <asm/mach-types.h>
  36 #include <asm/irq.h>
  37
  38 #include <asm/mach/arch.h>
  39 #include <asm/mach/map.h>
  40 #include <asm/mach/irq.h>
  41
  42 #include <asm/arch/board.h>
  43 #include <asm/arch/gpio.h>
  44 #include <asm/arch/at91_shdwc.h>
  45
  46 #include "generic.h"
  47
  48
  49 static void __init ek_map_io(void)
  50 {
  51         /* Initialize processor: 12.000 MHz crystal */
  52         at91sam9260_initialize(12000000);
  53
  54         /* DGBU on ttyS0. (Rx & Tx only) */
  55         at91_register_uart(0, 0, 0);
  56
  57         /* set serial console to ttyS0 (ie, DBGU) */
  58         at91_set_serial_console(0);
  59 }
  60
  61 static void __init ek_init_irq(void)
  62 {
  63         at91sam9260_init_interrupts(NULL);
  64 }
  65
  66
  67 /*
  68  * USB Host port
  69  */
  70 static struct at91_usbh_data __initdata ek_usbh_data = {
  71         .ports          = 2,
  72 };
  73
  74 /*
  75  * USB Device port
  76  */
  77 static struct at91_udc_data __initdata ek_udc_data = {
  78         .vbus_pin       = AT91_PIN_PC5,
  79         .pullup_pin     = 0,            /* pull-up driven by UDC */
  80 };
  81
  82 /*
  83  * MACB Ethernet device
  84  */
  85 static struct at91_eth_data __initdata ek_macb_data = {
  86         .phy_irq_pin    = AT91_PIN_PA31,
  87         .is_rmii        = 1,
  88 };
  89
  90 /*
  91  * NAND flash
  92  */
  93 static struct mtd_partition __initdata ek_nand_partition[] = {
  94         {
  95                 .name   = "Uboot & Kernel",
  96                 .offset = 0x00000000,
  97                 .size   = 16 * 1024 * 1024,
  98         },
  99         {
 100                 .name   = "Root FS",
 101                 .offset = 0x01000000,
 102                 .size   = 120 * 1024 * 1024,
 103         },
 104         {
 105                 .name   = "FS",
 106                 .offset = 0x08800000,
 107                 .size   = 120 * 1024 * 1024,
 108         }
 109 };
 110
 111 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 112 {
 113         *num_partitions = ARRAY_SIZE(ek_nand_partition);
 114         return ek_nand_partition;
 115 }
 116
 117 static struct atmel_nand_data __initdata ek_nand_data = {
 118         .ale            = 21,
 119         .cle            = 22,
 120 //      .det_pin        = ... not connected
 121         .rdy_pin        = AT91_PIN_PC13,
 122         .enable_pin     = AT91_PIN_PC14,
 123         .partition_info = nand_partitions,
 124 #if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
 125         .bus_width_16   = 1,
 126 #else
 127         .bus_width_16   = 0,
 128 #endif
 129 };
 130
 131 /*
 132  * GPIO Buttons
 133  */
 134
 135 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 136 static struct gpio_keys_button ek_buttons[] = {
 137         {       /* USER PUSH BUTTON */
 138                 .code           = KEY_ENTER,
 139                 .gpio           = AT91_PIN_PB10,
 140                 .active_low     = 1,
 141                 .desc           = "user_pb",
 142                 .wakeup         = 1,
 143         }
 144 };
 145
 146 static struct gpio_keys_platform_data ek_button_data = {
 147         .buttons        = ek_buttons,
 148         .nbuttons       = ARRAY_SIZE(ek_buttons),
 149 };
 150
 151 static struct platform_device ek_button_device = {
 152         .name           = "gpio-keys",
 153         .id             = -1,
 154         .num_resources  = 0,
 155         .dev            = {
 156                 .platform_data  = &ek_button_data,
 157         }
 158 };
 159
 160 static void __init ek_add_device_buttons(void)
 161 {
 162         at91_set_GPIO_periph(AT91_PIN_PB10, 1); /* user push button, pull up enabled */
 163         at91_set_deglitch(AT91_PIN_PB10, 1);
 164
 165         platform_device_register(&ek_button_device);
 166 }
 167 #else
 168 static void __init ek_add_device_buttons(void) {}
 169 #endif
 170
 171 /*
 172  * LEDs
 173  */
 174 static struct gpio_led ek_leds[] = {
 175         {       /* user_led (green) */
 176                 .name                   = "user_led",
 177                 .gpio                   = AT91_PIN_PB21,
 178                 .active_low             = 0,
 179                 .default_trigger        = "heartbeat",
 180         }
 181 };
 182
 183 static void __init ek_board_init(void)
 184 {
 185         /* Serial */
 186         at91_add_device_serial();
 187         /* USB Host */
 188         at91_add_device_usbh(&ek_usbh_data);
 189         /* USB Device */
 190         at91_add_device_udc(&ek_udc_data);
 191         /* NAND */
 192         at91_add_device_nand(&ek_nand_data);
 193         /* I2C */
 194         at91_add_device_i2c(NULL, 0);
 195         /* Ethernet */
 196         at91_add_device_eth(&ek_macb_data);
 197         /* Push Buttons */
 198         ek_add_device_buttons();
 199         /* LEDs */
 200         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 201         /* shutdown controller, wakeup button (5 msec low) */
 202         at91_sys_write(AT91_SHDW_MR, AT91_SHDW_CPTWK0_(10) | AT91_SHDW_WKMODE0_LOW
 203                                 | AT91_SHDW_RTTWKEN);
 204 }
 205
 206 MACHINE_START(USB_A9260, "CALAO USB_A9260")
 207         /* Maintainer: calao-systems */
 208         .phys_io        = AT91_BASE_SYS,
 209         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 210         .boot_params    = AT91_SDRAM_BASE + 0x100,
 211         .timer          = &at91sam926x_timer,
 212         .map_io         = ek_map_io,
 213         .init_irq       = ek_init_irq,
 214         .init_machine   = ek_board_init,
 215 MACHINE_END