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         /* DBGU on ttyS0. (Rx & Tx only) */
  47         at91_register_uart(0, 0, 0);
  48
  49         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS) */
  50         at91_register_uart(AT91SAM9RL_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS);
  51
  52         /* set serial console to ttyS0 (ie, DBGU) */
  53         at91_set_serial_console(0);
  54 }
  55
  56 /*
  57  * USB HS Device port
  58  */
  59 static struct usba_platform_data __initdata ek_usba_udc_data = {
  60         .vbus_pin       = AT91_PIN_PA8,
  61 };
  62
  63
  64 /*
  65  * MCI (SD/MMC)
  66  */
  67 static struct at91_mmc_data __initdata ek_mmc_data = {
  68         .wire4          = 1,
  69         .det_pin        = AT91_PIN_PA15,
  70         .wp_pin         = -EINVAL,
  71         .vcc_pin        = -EINVAL,
  72 };
  73
  74
  75 /*
  76  * NAND flash
  77  */
  78 static struct mtd_partition __initdata ek_nand_partition[] = {
  79         {
  80                 .name   = "Partition 1",
  81                 .offset = 0,
  82                 .size   = SZ_256K,
  83         },
  84         {
  85                 .name   = "Partition 2",
  86                 .offset = MTDPART_OFS_NXTBLK,
  87                 .size   = MTDPART_SIZ_FULL,
  88         },
  89 };
  90
  91 static struct atmel_nand_data __initdata ek_nand_data = {
  92         .ale            = 21,
  93         .cle            = 22,
  94         .det_pin        = -EINVAL,
  95         .rdy_pin        = AT91_PIN_PD17,
  96         .enable_pin     = AT91_PIN_PB6,
  97         .parts          = ek_nand_partition,
  98         .num_parts      = ARRAY_SIZE(ek_nand_partition),
  99 };
 100
 101 static struct sam9_smc_config __initdata ek_nand_smc_config = {
 102         .ncs_read_setup         = 0,
 103         .nrd_setup              = 1,
 104         .ncs_write_setup        = 0,
 105         .nwe_setup              = 1,
 106
 107         .ncs_read_pulse         = 3,
 108         .nrd_pulse              = 3,
 109         .ncs_write_pulse        = 3,
 110         .nwe_pulse              = 3,
 111
 112         .read_cycle             = 5,
 113         .write_cycle            = 5,
 114
 115         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 116         .tdf_cycles             = 2,
 117 };
 118
 119 static void __init ek_add_device_nand(void)
 120 {
 121         /* configure chip-select 3 (NAND) */
 122         sam9_smc_configure(0, 3, &ek_nand_smc_config);
 123
 124         at91_add_device_nand(&ek_nand_data);
 125 }
 126
 127
 128 /*
 129  * SPI devices
 130  */
 131 static struct spi_board_info ek_spi_devices[] = {
 132         {       /* DataFlash chip */
 133                 .modalias       = "mtd_dataflash",
 134                 .chip_select    = 0,
 135                 .max_speed_hz   = 15 * 1000 * 1000,
 136                 .bus_num        = 0,
 137         },
 138 };
 139
 140
 141 /*
 142  * LCD Controller
 143  */
 144 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 145 static struct fb_videomode at91_tft_vga_modes[] = {
 146         {
 147                 .name           = "TX09D50VM1CCA @ 60",
 148                 .refresh        = 60,
 149                 .xres           = 240,          .yres           = 320,
 150                 .pixclock       = KHZ2PICOS(4965),
 151
 152                 .left_margin    = 1,            .right_margin   = 33,
 153                 .upper_margin   = 1,            .lower_margin   = 0,
 154                 .hsync_len      = 5,            .vsync_len      = 1,
 155
 156                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 157                 .vmode          = FB_VMODE_NONINTERLACED,
 158         },
 159 };
 160
 161 static struct fb_monspecs at91fb_default_monspecs = {
 162         .manufacturer   = "HIT",
 163         .monitor        = "TX09D50VM1CCA",
 164
 165         .modedb         = at91_tft_vga_modes,
 166         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 167         .hfmin          = 15000,
 168         .hfmax          = 64000,
 169         .vfmin          = 50,
 170         .vfmax          = 150,
 171 };
 172
 173 #define AT91SAM9RL_DEFAULT_LCDCON2      (ATMEL_LCDC_MEMOR_LITTLE \
 174                                         | ATMEL_LCDC_DISTYPE_TFT \
 175                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 176
 177 static void at91_lcdc_power_control(int on)
 178 {
 179         if (on)
 180                 at91_set_gpio_value(AT91_PIN_PC1, 0);   /* power up */
 181         else
 182                 at91_set_gpio_value(AT91_PIN_PC1, 1);   /* power down */
 183 }
 184
 185 /* Driver datas */
 186 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 187         .lcdcon_is_backlight            = true,
 188         .default_bpp                    = 16,
 189         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 190         .default_lcdcon2                = AT91SAM9RL_DEFAULT_LCDCON2,
 191         .default_monspecs               = &at91fb_default_monspecs,
 192         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 193         .guard_time                     = 1,
 194         .lcd_wiring_mode                = ATMEL_LCDC_WIRING_RGB,
 195 };
 196
 197 #else
 198 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 199 #endif
 200
 201
 202 /*
 203  * AC97
 204  * reset_pin is not connected: NRST
 205  */
 206 static struct ac97c_platform_data ek_ac97_data = {
 207         .reset_pin      = -EINVAL,
 208 };
 209
 210
 211 /*
 212  * LEDs
 213  */
 214 static struct gpio_led ek_leds[] = {
 215         {       /* "bottom" led, green, userled1 to be defined */
 216                 .name                   = "ds1",
 217                 .gpio                   = AT91_PIN_PD15,
 218                 .active_low             = 1,
 219                 .default_trigger        = "none",
 220         },
 221         {       /* "bottom" led, green, userled2 to be defined */
 222                 .name                   = "ds2",
 223                 .gpio                   = AT91_PIN_PD16,
 224                 .active_low             = 1,
 225                 .default_trigger        = "none",
 226         },
 227         {       /* "power" led, yellow */
 228                 .name                   = "ds3",
 229                 .gpio                   = AT91_PIN_PD14,
 230                 .default_trigger        = "heartbeat",
 231         }
 232 };
 233
 234
 235 /*
 236  * Touchscreen
 237  */
 238 static struct at91_tsadcc_data ek_tsadcc_data = {
 239         .adc_clock              = 1000000,
 240         .pendet_debounce        = 0x0f,
 241         .ts_sample_hold_time    = 0x03,
 242 };
 243
 244
 245 /*
 246  * GPIO Buttons
 247  */
 248 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 249 static struct gpio_keys_button ek_buttons[] = {
 250         {
 251                 .gpio           = AT91_PIN_PB0,
 252                 .code           = BTN_2,
 253                 .desc           = "Right Click",
 254                 .active_low     = 1,
 255                 .wakeup         = 1,
 256         },
 257         {
 258                 .gpio           = AT91_PIN_PB1,
 259                 .code           = BTN_1,
 260                 .desc           = "Left Click",
 261                 .active_low     = 1,
 262                 .wakeup         = 1,
 263         }
 264 };
 265
 266 static struct gpio_keys_platform_data ek_button_data = {
 267         .buttons        = ek_buttons,
 268         .nbuttons       = ARRAY_SIZE(ek_buttons),
 269 };
 270
 271 static struct platform_device ek_button_device = {
 272         .name           = "gpio-keys",
 273         .id             = -1,
 274         .num_resources  = 0,
 275         .dev            = {
 276                 .platform_data  = &ek_button_data,
 277         }
 278 };
 279
 280 static void __init ek_add_device_buttons(void)
 281 {
 282         at91_set_gpio_input(AT91_PIN_PB1, 1);   /* btn1 */
 283         at91_set_deglitch(AT91_PIN_PB1, 1);
 284         at91_set_gpio_input(AT91_PIN_PB0, 1);   /* btn2 */
 285         at91_set_deglitch(AT91_PIN_PB0, 1);
 286
 287         platform_device_register(&ek_button_device);
 288 }
 289 #else
 290 static void __init ek_add_device_buttons(void) {}
 291 #endif
 292
 293
 294 static void __init ek_board_init(void)
 295 {
 296         /* Serial */
 297         at91_add_device_serial();
 298         /* USB HS */
 299         at91_add_device_usba(&ek_usba_udc_data);
 300         /* I2C */
 301         at91_add_device_i2c(NULL, 0);
 302         /* NAND */
 303         ek_add_device_nand();
 304         /* SPI */
 305         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 306         /* MMC */
 307         at91_add_device_mmc(0, &ek_mmc_data);
 308         /* LCD Controller */
 309         at91_add_device_lcdc(&ek_lcdc_data);
 310         /* AC97 */
 311         at91_add_device_ac97(&ek_ac97_data);
 312         /* Touch Screen Controller */
 313         at91_add_device_tsadcc(&ek_tsadcc_data);
 314         /* LEDs */
 315         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 316         /* Push Buttons */
 317         ek_add_device_buttons();
 318 }
 319
 320 MACHINE_START(AT91SAM9RLEK, "Atmel AT91SAM9RL-EK")
 321         /* Maintainer: Atmel */
 322         .timer          = &at91sam926x_timer,
 323         .map_io         = at91_map_io,
 324         .init_early     = ek_init_early,
 325         .init_irq       = at91_init_irq_default,
 326         .init_machine   = ek_board_init,
 327 MACHINE_END