release/src-rt-6.x.4708/linux/linux-2.6.36/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/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/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 <mach/hardware.h>
  42 #include <mach/board.h>
  43 #include <mach/gpio.h>
  44 #include <mach/at91sam9_smc.h>
  45 #include <mach/at91_shdwc.h>
  46
  47 #include "sam9_smc.h"
  48 #include "generic.h"
  49
  50
  51 static void __init ek_map_io(void)
  52 {
  53         /* Initialize processor: 12.000 MHz crystal */
  54         at91sam9260_initialize(12000000);
  55
  56         /* DBGU on ttyS0. (Rx & Tx only) */
  57         at91_register_uart(0, 0, 0);
  58
  59         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
  60         at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
  61                            | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
  62                            | ATMEL_UART_RI);
  63
  64         /* USART1 on ttyS2. (Rx, Tx, CTS, RTS) */
  65         at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
  66
  67         /* USART2 on ttyS3. (Rx, Tx, CTS, RTS) */
  68         at91_register_uart(AT91SAM9260_ID_US2, 3, ATMEL_UART_CTS | ATMEL_UART_RTS);
  69
  70         /* set serial console to ttyS1 (ie, USART0) */
  71         at91_set_serial_console(1);
  72
  73 }
  74
  75 static void __init ek_init_irq(void)
  76 {
  77         at91sam9260_init_interrupts(NULL);
  78 }
  79
  80
  81 /*
  82  * USB Host port
  83  */
  84 static struct at91_usbh_data __initdata ek_usbh_data = {
  85         .ports          = 2,
  86 };
  87
  88 /*
  89  * USB Device port
  90  */
  91 static struct at91_udc_data __initdata ek_udc_data = {
  92         .vbus_pin       = AT91_PIN_PC5,
  93         .pullup_pin     = 0,            /* pull-up driven by UDC */
  94 };
  95
  96 /*
  97  * SPI devices.
  98  */
  99 static struct spi_board_info ek_spi_devices[] = {
 100 #if defined(CONFIG_RTC_DRV_M41T94)
 101         {       /* M41T94 RTC */
 102                 .modalias       = "m41t94",
 103                 .chip_select    = 0,
 104                 .max_speed_hz   = 1 * 1000 * 1000,
 105                 .bus_num        = 0,
 106         }
 107 #endif
 108 };
 109
 110 /*
 111  * MACB Ethernet device
 112  */
 113 static struct at91_eth_data __initdata ek_macb_data = {
 114         .phy_irq_pin    = AT91_PIN_PA31,
 115         .is_rmii        = 1,
 116 };
 117
 118 /*
 119  * NAND flash
 120  */
 121 static struct mtd_partition __initdata ek_nand_partition[] = {
 122         {
 123                 .name   = "Uboot & Kernel",
 124                 .offset = 0,
 125                 .size   = SZ_16M,
 126         },
 127         {
 128                 .name   = "Root FS",
 129                 .offset = MTDPART_OFS_NXTBLK,
 130                 .size   = 120 * SZ_1M,
 131         },
 132         {
 133                 .name   = "FS",
 134                 .offset = MTDPART_OFS_NXTBLK,
 135                 .size   = 120 * SZ_1M,
 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 static struct atmel_nand_data __initdata ek_nand_data = {
 146         .ale            = 21,
 147         .cle            = 22,
 148 //      .det_pin        = ... not connected
 149         .rdy_pin        = AT91_PIN_PC13,
 150         .enable_pin     = AT91_PIN_PC14,
 151         .partition_info = nand_partitions,
 152 };
 153
 154 static struct sam9_smc_config __initdata ek_nand_smc_config = {
 155         .ncs_read_setup         = 0,
 156         .nrd_setup              = 1,
 157         .ncs_write_setup        = 0,
 158         .nwe_setup              = 1,
 159
 160         .ncs_read_pulse         = 3,
 161         .nrd_pulse              = 3,
 162         .ncs_write_pulse        = 3,
 163         .nwe_pulse              = 3,
 164
 165         .read_cycle             = 5,
 166         .write_cycle            = 5,
 167
 168         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 169         .tdf_cycles             = 2,
 170 };
 171
 172 static void __init ek_add_device_nand(void)
 173 {
 174         /* configure chip-select 3 (NAND) */
 175         sam9_smc_configure(3, &ek_nand_smc_config);
 176
 177         at91_add_device_nand(&ek_nand_data);
 178 }
 179
 180 /*
 181  * MCI (SD/MMC)
 182  */
 183 static struct at91_mmc_data __initdata ek_mmc_data = {
 184         .slot_b         = 0,
 185         .wire4          = 1,
 186 //      .det_pin        = ... not connected
 187 //      .wp_pin         = ... not connected
 188 //      .vcc_pin        = ... not connected
 189 };
 190
 191 /*
 192  * GPIO Buttons
 193  */
 194 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 195 static struct gpio_keys_button ek_buttons[] = {
 196         {       /* USER PUSH BUTTON */
 197                 .code           = KEY_ENTER,
 198                 .gpio           = AT91_PIN_PB10,
 199                 .active_low     = 1,
 200                 .desc           = "user_pb",
 201                 .wakeup         = 1,
 202         }
 203 };
 204
 205 static struct gpio_keys_platform_data ek_button_data = {
 206         .buttons        = ek_buttons,
 207         .nbuttons       = ARRAY_SIZE(ek_buttons),
 208 };
 209
 210 static struct platform_device ek_button_device = {
 211         .name           = "gpio-keys",
 212         .id             = -1,
 213         .num_resources  = 0,
 214         .dev            = {
 215                 .platform_data  = &ek_button_data,
 216         }
 217 };
 218
 219 static void __init ek_add_device_buttons(void)
 220 {
 221         at91_set_GPIO_periph(AT91_PIN_PB10, 1); /* user push button, pull up enabled */
 222         at91_set_deglitch(AT91_PIN_PB10, 1);
 223
 224         platform_device_register(&ek_button_device);
 225 }
 226 #else
 227 static void __init ek_add_device_buttons(void) {}
 228 #endif
 229
 230 /*
 231  * LEDs
 232  */
 233 static struct gpio_led ek_leds[] = {
 234         {       /* user_led (green) */
 235                 .name                   = "user_led",
 236                 .gpio                   = AT91_PIN_PB21,
 237                 .active_low             = 0,
 238                 .default_trigger        = "heartbeat",
 239         }
 240 };
 241
 242 static void __init ek_board_init(void)
 243 {
 244         /* Serial */
 245         at91_add_device_serial();
 246         /* USB Host */
 247         at91_add_device_usbh(&ek_usbh_data);
 248         /* USB Device */
 249         at91_add_device_udc(&ek_udc_data);
 250         /* SPI */
 251         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 252         /* NAND */
 253         ek_add_device_nand();
 254         /* I2C */
 255         at91_add_device_i2c(NULL, 0);
 256         /* Ethernet */
 257         at91_add_device_eth(&ek_macb_data);
 258         /* MMC */
 259         at91_add_device_mmc(0, &ek_mmc_data);
 260         /* Push Buttons */
 261         ek_add_device_buttons();
 262         /* LEDs */
 263         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 264         /* shutdown controller, wakeup button (5 msec low) */
 265         at91_sys_write(AT91_SHDW_MR, AT91_SHDW_CPTWK0_(10) | AT91_SHDW_WKMODE0_LOW
 266                                 | AT91_SHDW_RTTWKEN);
 267 }
 268
 269 MACHINE_START(QIL_A9260, "CALAO QIL_A9260")
 270         /* Maintainer: calao-systems */
 271         .phys_io        = AT91_BASE_SYS,
 272         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 273         .boot_params    = AT91_SDRAM_BASE + 0x100,
 274         .timer          = &at91sam926x_timer,
 275         .map_io         = ek_map_io,
 276         .init_irq       = ek_init_irq,
 277         .init_machine   = ek_board_init,
 278 MACHINE_END