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