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/at91_aic.h>
  35 #include <mach/at91sam9_smc.h>
  36 #include <mach/at91_shdwc.h>
  37
  38 #include "sam9_smc.h"
  39 #include "generic.h"
  40
  41
  42 static void __init ek_init_early(void)
  43 {
  44         /* Initialize processor: 12.000 MHz crystal */
  45         at91_initialize(12000000);
  46 }
  47
  48 /*
  49  * USB HS Device port
  50  */
  51 static struct usba_platform_data __initdata ek_usba_udc_data = {
  52         .vbus_pin       = AT91_PIN_PA8,
  53 };
  54
  55
  56 /*
  57  * MCI (SD/MMC)
  58  */
  59 static struct at91_mmc_data __initdata ek_mmc_data = {
  60         .wire4          = 1,
  61         .det_pin        = AT91_PIN_PA15,
  62         .wp_pin         = -EINVAL,
  63         .vcc_pin        = -EINVAL,
  64 };
  65
  66
  67 /*
  68  * NAND flash
  69  */
  70 static struct mtd_partition __initdata ek_nand_partition[] = {
  71         {
  72                 .name   = "Partition 1",
  73                 .offset = 0,
  74                 .size   = SZ_256K,
  75         },
  76         {
  77                 .name   = "Partition 2",
  78                 .offset = MTDPART_OFS_NXTBLK,
  79                 .size   = MTDPART_SIZ_FULL,
  80         },
  81 };
  82
  83 static struct atmel_nand_data __initdata ek_nand_data = {
  84         .ale            = 21,
  85         .cle            = 22,
  86         .det_pin        = -EINVAL,
  87         .rdy_pin        = AT91_PIN_PD17,
  88         .enable_pin     = AT91_PIN_PB6,
  89         .ecc_mode       = NAND_ECC_SOFT,
  90         .on_flash_bbt   = 1,
  91         .parts          = ek_nand_partition,
  92         .num_parts      = ARRAY_SIZE(ek_nand_partition),
  93 };
  94
  95 static struct sam9_smc_config __initdata ek_nand_smc_config = {
  96         .ncs_read_setup         = 0,
  97         .nrd_setup              = 1,
  98         .ncs_write_setup        = 0,
  99         .nwe_setup              = 1,
 100
 101         .ncs_read_pulse         = 3,
 102         .nrd_pulse              = 3,
 103         .ncs_write_pulse        = 3,
 104         .nwe_pulse              = 3,
 105
 106         .read_cycle             = 5,
 107         .write_cycle            = 5,
 108
 109         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 110         .tdf_cycles             = 2,
 111 };
 112
 113 static void __init ek_add_device_nand(void)
 114 {
 115         /* configure chip-select 3 (NAND) */
 116         sam9_smc_configure(0, 3, &ek_nand_smc_config);
 117
 118         at91_add_device_nand(&ek_nand_data);
 119 }
 120
 121
 122 /*
 123  * SPI devices
 124  */
 125 static struct spi_board_info ek_spi_devices[] = {
 126         {       /* DataFlash chip */
 127                 .modalias       = "mtd_dataflash",
 128                 .chip_select    = 0,
 129                 .max_speed_hz   = 15 * 1000 * 1000,
 130                 .bus_num        = 0,
 131         },
 132 };
 133
 134
 135 /*
 136  * LCD Controller
 137  */
 138 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 139 static struct fb_videomode at91_tft_vga_modes[] = {
 140         {
 141                 .name           = "TX09D50VM1CCA @ 60",
 142                 .refresh        = 60,
 143                 .xres           = 240,          .yres           = 320,
 144                 .pixclock       = KHZ2PICOS(4965),
 145
 146                 .left_margin    = 1,            .right_margin   = 33,
 147                 .upper_margin   = 1,            .lower_margin   = 0,
 148                 .hsync_len      = 5,            .vsync_len      = 1,
 149
 150                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 151                 .vmode          = FB_VMODE_NONINTERLACED,
 152         },
 153 };
 154
 155 static struct fb_monspecs at91fb_default_monspecs = {
 156         .manufacturer   = "HIT",
 157         .monitor        = "TX09D50VM1CCA",
 158
 159         .modedb         = at91_tft_vga_modes,
 160         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 161         .hfmin          = 15000,
 162         .hfmax          = 64000,
 163         .vfmin          = 50,
 164         .vfmax          = 150,
 165 };
 166
 167 #define AT91SAM9RL_DEFAULT_LCDCON2      (ATMEL_LCDC_MEMOR_LITTLE \
 168                                         | ATMEL_LCDC_DISTYPE_TFT \
 169                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 170
 171 static void at91_lcdc_power_control(int on)
 172 {
 173         if (on)
 174                 at91_set_gpio_value(AT91_PIN_PC1, 0);   /* power up */
 175         else
 176                 at91_set_gpio_value(AT91_PIN_PC1, 1);   /* power down */
 177 }
 178
 179 /* Driver datas */
 180 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 181         .lcdcon_is_backlight            = true,
 182         .default_bpp                    = 16,
 183         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 184         .default_lcdcon2                = AT91SAM9RL_DEFAULT_LCDCON2,
 185         .default_monspecs               = &at91fb_default_monspecs,
 186         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 187         .guard_time                     = 1,
 188         .lcd_wiring_mode                = ATMEL_LCDC_WIRING_RGB,
 189 };
 190
 191 #else
 192 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 193 #endif
 194
 195
 196 /*
 197  * AC97
 198  * reset_pin is not connected: NRST
 199  */
 200 static struct ac97c_platform_data ek_ac97_data = {
 201         .reset_pin      = -EINVAL,
 202 };
 203
 204
 205 /*
 206  * LEDs
 207  */
 208 static struct gpio_led ek_leds[] = {
 209         {       /* "bottom" led, green, userled1 to be defined */
 210                 .name                   = "ds1",
 211                 .gpio                   = AT91_PIN_PD15,
 212                 .active_low             = 1,
 213                 .default_trigger        = "none",
 214         },
 215         {       /* "bottom" led, green, userled2 to be defined */
 216                 .name                   = "ds2",
 217                 .gpio                   = AT91_PIN_PD16,
 218                 .active_low             = 1,
 219                 .default_trigger        = "none",
 220         },
 221         {       /* "power" led, yellow */
 222                 .name                   = "ds3",
 223                 .gpio                   = AT91_PIN_PD14,
 224                 .default_trigger        = "heartbeat",
 225         }
 226 };
 227
 228
 229 /*
 230  * Touchscreen
 231  */
 232 static struct at91_tsadcc_data ek_tsadcc_data = {
 233         .adc_clock              = 1000000,
 234         .pendet_debounce        = 0x0f,
 235         .ts_sample_hold_time    = 0x03,
 236 };
 237
 238
 239 /*
 240  * GPIO Buttons
 241  */
 242 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 243 static struct gpio_keys_button ek_buttons[] = {
 244         {
 245                 .gpio           = AT91_PIN_PB0,
 246                 .code           = BTN_2,
 247                 .desc           = "Right Click",
 248                 .active_low     = 1,
 249                 .wakeup         = 1,
 250         },
 251         {
 252                 .gpio           = AT91_PIN_PB1,
 253                 .code           = BTN_1,
 254                 .desc           = "Left Click",
 255                 .active_low     = 1,
 256                 .wakeup         = 1,
 257         }
 258 };
 259
 260 static struct gpio_keys_platform_data ek_button_data = {
 261         .buttons        = ek_buttons,
 262         .nbuttons       = ARRAY_SIZE(ek_buttons),
 263 };
 264
 265 static struct platform_device ek_button_device = {
 266         .name           = "gpio-keys",
 267         .id             = -1,
 268         .num_resources  = 0,
 269         .dev            = {
 270                 .platform_data  = &ek_button_data,
 271         }
 272 };
 273
 274 static void __init ek_add_device_buttons(void)
 275 {
 276         at91_set_gpio_input(AT91_PIN_PB1, 1);   /* btn1 */
 277         at91_set_deglitch(AT91_PIN_PB1, 1);
 278         at91_set_gpio_input(AT91_PIN_PB0, 1);   /* btn2 */
 279         at91_set_deglitch(AT91_PIN_PB0, 1);
 280
 281         platform_device_register(&ek_button_device);
 282 }
 283 #else
 284 static void __init ek_add_device_buttons(void) {}
 285 #endif
 286
 287
 288 static void __init ek_board_init(void)
 289 {
 290         /* Serial */
 291         /* DBGU on ttyS0. (Rx & Tx only) */
 292         at91_register_uart(0, 0, 0);
 293
 294         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS) */
 295         at91_register_uart(AT91SAM9RL_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS);
 296         at91_add_device_serial();
 297         /* USB HS */
 298         at91_add_device_usba(&ek_usba_udc_data);
 299         /* I2C */
 300         at91_add_device_i2c(NULL, 0);
 301         /* NAND */
 302         ek_add_device_nand();
 303         /* SPI */
 304         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 305         /* MMC */
 306         at91_add_device_mmc(0, &ek_mmc_data);
 307         /* LCD Controller */
 308         at91_add_device_lcdc(&ek_lcdc_data);
 309         /* AC97 */
 310         at91_add_device_ac97(&ek_ac97_data);
 311         /* Touch Screen Controller */
 312         at91_add_device_tsadcc(&ek_tsadcc_data);
 313         /* LEDs */
 314         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 315         /* Push Buttons */
 316         ek_add_device_buttons();
 317 }
 318
 319 MACHINE_START(AT91SAM9RLEK, "Atmel AT91SAM9RL-EK")
 320         /* Maintainer: Atmel */
 321         .timer          = &at91sam926x_timer,
 322         .map_io         = at91_map_io,
 323         .handle_irq     = at91_aic_handle_irq,
 324         .init_early     = ek_init_early,
 325         .init_irq       = at91_init_irq_default,
 326         .init_machine   = ek_board_init,
 327 MACHINE_END