arch/arm/mach-at91/board-sam9rlek.c

   1 /*
   2  *  Copyright (C) 2005 SAN People
   3  *  Copyright (C) 2007 Atmel Corporation
   4  *
   5  * This file is subject to the terms and conditions of the GNU General Public
   6  * License.  See the file COPYING in the main directory of this archive for
   7  * more details.
   8  */
   9
  10 #include <linux/types.h>
  11 #include <linux/gpio.h>
  12 #include <linux/init.h>
  13 #include <linux/mm.h>
  14 #include <linux/module.h>
  15 #include <linux/platform_device.h>
  16 #include <linux/spi/spi.h>
  17 #include <linux/fb.h>
  18 #include <linux/clk.h>
  19 #include <linux/input.h>
  20 #include <linux/gpio_keys.h>
  21
  22 #include <video/atmel_lcdc.h>
  23
  24 #include <asm/setup.h>
  25 #include <asm/mach-types.h>
  26 #include <asm/irq.h>
  27
  28 #include <asm/mach/arch.h>
  29 #include <asm/mach/map.h>
  30 #include <asm/mach/irq.h>
  31
  32 #include <mach/hardware.h>
  33 #include <mach/board.h>
  34 #include <mach/at91sam9_smc.h>
  35 #include <mach/at91_shdwc.h>
  36
  37 #include "sam9_smc.h"
  38 #include "generic.h"
  39
  40
  41 static void __init ek_init_early(void)
  42 {
  43         /* Initialize processor: 12.000 MHz crystal */
  44         at91_initialize(12000000);
  45 }
  46
  47 /*
  48  * USB HS Device port
  49  */
  50 static struct usba_platform_data __initdata ek_usba_udc_data = {
  51         .vbus_pin       = AT91_PIN_PA8,
  52 };
  53
  54
  55 /*
  56  * MCI (SD/MMC)
  57  */
  58 static struct at91_mmc_data __initdata ek_mmc_data = {
  59         .wire4          = 1,
  60         .det_pin        = AT91_PIN_PA15,
  61         .wp_pin         = -EINVAL,
  62         .vcc_pin        = -EINVAL,
  63 };
  64
  65
  66 /*
  67  * NAND flash
  68  */
  69 static struct mtd_partition __initdata ek_nand_partition[] = {
  70         {
  71                 .name   = "Partition 1",
  72                 .offset = 0,
  73                 .size   = SZ_256K,
  74         },
  75         {
  76                 .name   = "Partition 2",
  77                 .offset = MTDPART_OFS_NXTBLK,
  78                 .size   = MTDPART_SIZ_FULL,
  79         },
  80 };
  81
  82 static struct atmel_nand_data __initdata ek_nand_data = {
  83         .ale            = 21,
  84         .cle            = 22,
  85         .det_pin        = -EINVAL,
  86         .rdy_pin        = AT91_PIN_PD17,
  87         .enable_pin     = AT91_PIN_PB6,
  88         .ecc_mode       = NAND_ECC_SOFT,
  89         .on_flash_bbt   = 1,
  90         .parts          = ek_nand_partition,
  91         .num_parts      = ARRAY_SIZE(ek_nand_partition),
  92 };
  93
  94 static struct sam9_smc_config __initdata ek_nand_smc_config = {
  95         .ncs_read_setup         = 0,
  96         .nrd_setup              = 1,
  97         .ncs_write_setup        = 0,
  98         .nwe_setup              = 1,
  99
 100         .ncs_read_pulse         = 3,
 101         .nrd_pulse              = 3,
 102         .ncs_write_pulse        = 3,
 103         .nwe_pulse              = 3,
 104
 105         .read_cycle             = 5,
 106         .write_cycle            = 5,
 107
 108         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 109         .tdf_cycles             = 2,
 110 };
 111
 112 static void __init ek_add_device_nand(void)
 113 {
 114         /* configure chip-select 3 (NAND) */
 115         sam9_smc_configure(0, 3, &ek_nand_smc_config);
 116
 117         at91_add_device_nand(&ek_nand_data);
 118 }
 119
 120
 121 /*
 122  * SPI devices
 123  */
 124 static struct spi_board_info ek_spi_devices[] = {
 125         {       /* DataFlash chip */
 126                 .modalias       = "mtd_dataflash",
 127                 .chip_select    = 0,
 128                 .max_speed_hz   = 15 * 1000 * 1000,
 129                 .bus_num        = 0,
 130         },
 131 };
 132
 133
 134 /*
 135  * LCD Controller
 136  */
 137 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 138 static struct fb_videomode at91_tft_vga_modes[] = {
 139         {
 140                 .name           = "TX09D50VM1CCA @ 60",
 141                 .refresh        = 60,
 142                 .xres           = 240,          .yres           = 320,
 143                 .pixclock       = KHZ2PICOS(4965),
 144
 145                 .left_margin    = 1,            .right_margin   = 33,
 146                 .upper_margin   = 1,            .lower_margin   = 0,
 147                 .hsync_len      = 5,            .vsync_len      = 1,
 148
 149                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 150                 .vmode          = FB_VMODE_NONINTERLACED,
 151         },
 152 };
 153
 154 static struct fb_monspecs at91fb_default_monspecs = {
 155         .manufacturer   = "HIT",
 156         .monitor        = "TX09D50VM1CCA",
 157
 158         .modedb         = at91_tft_vga_modes,
 159         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 160         .hfmin          = 15000,
 161         .hfmax          = 64000,
 162         .vfmin          = 50,
 163         .vfmax          = 150,
 164 };
 165
 166 #define AT91SAM9RL_DEFAULT_LCDCON2      (ATMEL_LCDC_MEMOR_LITTLE \
 167                                         | ATMEL_LCDC_DISTYPE_TFT \
 168                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 169
 170 static void at91_lcdc_power_control(int on)
 171 {
 172         if (on)
 173                 at91_set_gpio_value(AT91_PIN_PC1, 0);   /* power up */
 174         else
 175                 at91_set_gpio_value(AT91_PIN_PC1, 1);   /* power down */
 176 }
 177
 178 /* Driver datas */
 179 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 180         .lcdcon_is_backlight            = true,
 181         .default_bpp                    = 16,
 182         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 183         .default_lcdcon2                = AT91SAM9RL_DEFAULT_LCDCON2,
 184         .default_monspecs               = &at91fb_default_monspecs,
 185         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 186         .guard_time                     = 1,
 187         .lcd_wiring_mode                = ATMEL_LCDC_WIRING_RGB,
 188 };
 189
 190 #else
 191 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 192 #endif
 193
 194
 195 /*
 196  * AC97
 197  * reset_pin is not connected: NRST
 198  */
 199 static struct ac97c_platform_data ek_ac97_data = {
 200         .reset_pin      = -EINVAL,
 201 };
 202
 203
 204 /*
 205  * LEDs
 206  */
 207 static struct gpio_led ek_leds[] = {
 208         {       /* "bottom" led, green, userled1 to be defined */
 209                 .name                   = "ds1",
 210                 .gpio                   = AT91_PIN_PD15,
 211                 .active_low             = 1,
 212                 .default_trigger        = "none",
 213         },
 214         {       /* "bottom" led, green, userled2 to be defined */
 215                 .name                   = "ds2",
 216                 .gpio                   = AT91_PIN_PD16,
 217                 .active_low             = 1,
 218                 .default_trigger        = "none",
 219         },
 220         {       /* "power" led, yellow */
 221                 .name                   = "ds3",
 222                 .gpio                   = AT91_PIN_PD14,
 223                 .default_trigger        = "heartbeat",
 224         }
 225 };
 226
 227
 228 /*
 229  * Touchscreen
 230  */
 231 static struct at91_tsadcc_data ek_tsadcc_data = {
 232         .adc_clock              = 1000000,
 233         .pendet_debounce        = 0x0f,
 234         .ts_sample_hold_time    = 0x03,
 235 };
 236
 237
 238 /*
 239  * GPIO Buttons
 240  */
 241 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 242 static struct gpio_keys_button ek_buttons[] = {
 243         {
 244                 .gpio           = AT91_PIN_PB0,
 245                 .code           = BTN_2,
 246                 .desc           = "Right Click",
 247                 .active_low     = 1,
 248                 .wakeup         = 1,
 249         },
 250         {
 251                 .gpio           = AT91_PIN_PB1,
 252                 .code           = BTN_1,
 253                 .desc           = "Left Click",
 254                 .active_low     = 1,
 255                 .wakeup         = 1,
 256         }
 257 };
 258
 259 static struct gpio_keys_platform_data ek_button_data = {
 260         .buttons        = ek_buttons,
 261         .nbuttons       = ARRAY_SIZE(ek_buttons),
 262 };
 263
 264 static struct platform_device ek_button_device = {
 265         .name           = "gpio-keys",
 266         .id             = -1,
 267         .num_resources  = 0,
 268         .dev            = {
 269                 .platform_data  = &ek_button_data,
 270         }
 271 };
 272
 273 static void __init ek_add_device_buttons(void)
 274 {
 275         at91_set_gpio_input(AT91_PIN_PB1, 1);   /* btn1 */
 276         at91_set_deglitch(AT91_PIN_PB1, 1);
 277         at91_set_gpio_input(AT91_PIN_PB0, 1);   /* btn2 */
 278         at91_set_deglitch(AT91_PIN_PB0, 1);
 279
 280         platform_device_register(&ek_button_device);
 281 }
 282 #else
 283 static void __init ek_add_device_buttons(void) {}
 284 #endif
 285
 286
 287 static void __init ek_board_init(void)
 288 {
 289         /* Serial */
 290         /* DBGU on ttyS0. (Rx & Tx only) */
 291         at91_register_uart(0, 0, 0);
 292
 293         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS) */
 294         at91_register_uart(AT91SAM9RL_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS);
 295         at91_add_device_serial();
 296         /* USB HS */
 297         at91_add_device_usba(&ek_usba_udc_data);
 298         /* I2C */
 299         at91_add_device_i2c(NULL, 0);
 300         /* NAND */
 301         ek_add_device_nand();
 302         /* SPI */
 303         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 304         /* MMC */
 305         at91_add_device_mmc(0, &ek_mmc_data);
 306         /* LCD Controller */
 307         at91_add_device_lcdc(&ek_lcdc_data);
 308         /* AC97 */
 309         at91_add_device_ac97(&ek_ac97_data);
 310         /* Touch Screen Controller */
 311         at91_add_device_tsadcc(&ek_tsadcc_data);
 312         /* LEDs */
 313         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 314         /* Push Buttons */
 315         ek_add_device_buttons();
 316 }
 317
 318 MACHINE_START(AT91SAM9RLEK, "Atmel AT91SAM9RL-EK")
 319         /* Maintainer: Atmel */
 320         .timer          = &at91sam926x_timer,
 321         .map_io         = at91_map_io,
 322         .init_early     = ek_init_early,
 323         .init_irq       = at91_init_irq_default,
 324         .init_machine   = ek_board_init,
 325 MACHINE_END