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

   1 /*
   2  * linux/arch/arm/mach-at91/board-qil-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/gpio.h>
  25 #include <linux/init.h>
  26 #include <linux/mm.h>
  27 #include <linux/module.h>
  28 #include <linux/platform_device.h>
  29 #include <linux/spi/spi.h>
  30 #include <linux/gpio_keys.h>
  31 #include <linux/input.h>
  32 #include <linux/clk.h>
  33
  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 <mach/hardware.h>
  43 #include <mach/at91sam9_smc.h>
  44
  45 #include "at91_aic.h"
  46 #include "at91_shdwc.h"
  47 #include "board.h"
  48 #include "sam9_smc.h"
  49 #include "generic.h"
  50
  51
  52 static void __init ek_init_early(void)
  53 {
  54         /* Initialize processor: 12.000 MHz crystal */
  55         at91_initialize(12000000);
  56 }
  57
  58 /*
  59  * USB Host port
  60  */
  61 static struct at91_usbh_data __initdata ek_usbh_data = {
  62         .ports          = 2,
  63         .vbus_pin       = {-EINVAL, -EINVAL},
  64         .overcurrent_pin= {-EINVAL, -EINVAL},
  65 };
  66
  67 /*
  68  * USB Device port
  69  */
  70 static struct at91_udc_data __initdata ek_udc_data = {
  71         .vbus_pin       = AT91_PIN_PC5,
  72         .pullup_pin     = -EINVAL,              /* pull-up driven by UDC */
  73 };
  74
  75 /*
  76  * SPI devices.
  77  */
  78 static struct spi_board_info ek_spi_devices[] = {
  79 #if defined(CONFIG_RTC_DRV_M41T94)
  80         {       /* M41T94 RTC */
  81                 .modalias       = "m41t94",
  82                 .chip_select    = 0,
  83                 .max_speed_hz   = 1 * 1000 * 1000,
  84                 .bus_num        = 0,
  85         }
  86 #endif
  87 };
  88
  89 /*
  90  * MACB Ethernet device
  91  */
  92 static struct macb_platform_data __initdata ek_macb_data = {
  93         .phy_irq_pin    = AT91_PIN_PA31,
  94         .is_rmii        = 1,
  95 };
  96
  97 /*
  98  * NAND flash
  99  */
 100 static struct mtd_partition __initdata ek_nand_partition[] = {
 101         {
 102                 .name   = "Uboot & Kernel",
 103                 .offset = 0,
 104                 .size   = SZ_16M,
 105         },
 106         {
 107                 .name   = "Root FS",
 108                 .offset = MTDPART_OFS_NXTBLK,
 109                 .size   = 120 * SZ_1M,
 110         },
 111         {
 112                 .name   = "FS",
 113                 .offset = MTDPART_OFS_NXTBLK,
 114                 .size   = 120 * SZ_1M,
 115         },
 116 };
 117
 118 static struct atmel_nand_data __initdata ek_nand_data = {
 119         .ale            = 21,
 120         .cle            = 22,
 121         .det_pin        = -EINVAL,
 122         .rdy_pin        = AT91_PIN_PC13,
 123         .enable_pin     = AT91_PIN_PC14,
 124         .ecc_mode       = NAND_ECC_SOFT,
 125         .on_flash_bbt   = 1,
 126         .parts          = ek_nand_partition,
 127         .num_parts      = ARRAY_SIZE(ek_nand_partition),
 128 };
 129
 130 static struct sam9_smc_config __initdata ek_nand_smc_config = {
 131         .ncs_read_setup         = 0,
 132         .nrd_setup              = 1,
 133         .ncs_write_setup        = 0,
 134         .nwe_setup              = 1,
 135
 136         .ncs_read_pulse         = 3,
 137         .nrd_pulse              = 3,
 138         .ncs_write_pulse        = 3,
 139         .nwe_pulse              = 3,
 140
 141         .read_cycle             = 5,
 142         .write_cycle            = 5,
 143
 144         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 145         .tdf_cycles             = 2,
 146 };
 147
 148 static void __init ek_add_device_nand(void)
 149 {
 150         /* configure chip-select 3 (NAND) */
 151         sam9_smc_configure(0, 3, &ek_nand_smc_config);
 152
 153         at91_add_device_nand(&ek_nand_data);
 154 }
 155
 156 /*
 157  * MCI (SD/MMC)
 158  */
 159 static struct mci_platform_data __initdata ek_mci0_data = {
 160         .slot[0] = {
 161                 .bus_width      = 4,
 162                 .detect_pin     = -EINVAL,
 163                 .wp_pin         = -EINVAL,
 164         },
 165 };
 166
 167 /*
 168  * GPIO Buttons
 169  */
 170 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 171 static struct gpio_keys_button ek_buttons[] = {
 172         {       /* USER PUSH BUTTON */
 173                 .code           = KEY_ENTER,
 174                 .gpio           = AT91_PIN_PB10,
 175                 .active_low     = 1,
 176                 .desc           = "user_pb",
 177                 .wakeup         = 1,
 178         }
 179 };
 180
 181 static struct gpio_keys_platform_data ek_button_data = {
 182         .buttons        = ek_buttons,
 183         .nbuttons       = ARRAY_SIZE(ek_buttons),
 184 };
 185
 186 static struct platform_device ek_button_device = {
 187         .name           = "gpio-keys",
 188         .id             = -1,
 189         .num_resources  = 0,
 190         .dev            = {
 191                 .platform_data  = &ek_button_data,
 192         }
 193 };
 194
 195 static void __init ek_add_device_buttons(void)
 196 {
 197         at91_set_GPIO_periph(AT91_PIN_PB10, 1); /* user push button, pull up enabled */
 198         at91_set_deglitch(AT91_PIN_PB10, 1);
 199
 200         platform_device_register(&ek_button_device);
 201 }
 202 #else
 203 static void __init ek_add_device_buttons(void) {}
 204 #endif
 205
 206 /*
 207  * LEDs
 208  */
 209 static struct gpio_led ek_leds[] = {
 210         {       /* user_led (green) */
 211                 .name                   = "user_led",
 212                 .gpio                   = AT91_PIN_PB21,
 213                 .active_low             = 0,
 214                 .default_trigger        = "heartbeat",
 215         }
 216 };
 217
 218 static void __init ek_board_init(void)
 219 {
 220         /* Serial */
 221         /* DBGU on ttyS0. (Rx & Tx only) */
 222         at91_register_uart(0, 0, 0);
 223
 224         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
 225         at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
 226                            | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
 227                            | ATMEL_UART_RI);
 228
 229         /* USART1 on ttyS2. (Rx, Tx, CTS, RTS) */
 230         at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
 231
 232         /* USART2 on ttyS3. (Rx, Tx, CTS, RTS) */
 233         at91_register_uart(AT91SAM9260_ID_US2, 3, ATMEL_UART_CTS | ATMEL_UART_RTS);
 234         at91_add_device_serial();
 235         /* USB Host */
 236         at91_add_device_usbh(&ek_usbh_data);
 237         /* USB Device */
 238         at91_add_device_udc(&ek_udc_data);
 239         /* SPI */
 240         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 241         /* NAND */
 242         ek_add_device_nand();
 243         /* I2C */
 244         at91_add_device_i2c(NULL, 0);
 245         /* Ethernet */
 246         at91_add_device_eth(&ek_macb_data);
 247         /* MMC */
 248         at91_add_device_mci(0, &ek_mci0_data);
 249         /* Push Buttons */
 250         ek_add_device_buttons();
 251         /* LEDs */
 252         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 253         /* shutdown controller, wakeup button (5 msec low) */
 254         at91_shdwc_write(AT91_SHDW_MR, AT91_SHDW_CPTWK0_(10) | AT91_SHDW_WKMODE0_LOW
 255                                 | AT91_SHDW_RTTWKEN);
 256 }
 257
 258 MACHINE_START(QIL_A9260, "CALAO QIL_A9260")
 259         /* Maintainer: calao-systems */
 260         .init_time      = at91sam926x_pit_init,
 261         .map_io         = at91_map_io,
 262         .handle_irq     = at91_aic_handle_irq,
 263         .init_early     = ek_init_early,
 264         .init_irq       = at91_init_irq_default,
 265         .init_machine   = ek_board_init,
 266 MACHINE_END