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/at91sam9_smc.h>
  34
  35
  36 #include "at91_aic.h"
  37 #include "at91_shdwc.h"
  38 #include "board.h"
  39 #include "sam9_smc.h"
  40 #include "generic.h"
  41
  42
  43 static void __init ek_init_early(void)
  44 {
  45         /* Initialize processor: 12.000 MHz crystal */
  46         at91_initialize(12000000);
  47 }
  48
  49 /*
  50  * USB HS Device port
  51  */
  52 static struct usba_platform_data __initdata ek_usba_udc_data = {
  53         .vbus_pin       = AT91_PIN_PA8,
  54 };
  55
  56
  57 /*
  58  * MCI (SD/MMC)
  59  */
  60 static struct mci_platform_data __initdata mci0_data = {
  61         .slot[0] = {
  62                 .bus_width      = 4,
  63                 .detect_pin     = AT91_PIN_PA15,
  64                 .wp_pin         = -EINVAL,
  65         },
  66 };
  67
  68
  69 /*
  70  * NAND flash
  71  */
  72 static struct mtd_partition __initdata ek_nand_partition[] = {
  73         {
  74                 .name   = "Partition 1",
  75                 .offset = 0,
  76                 .size   = SZ_256K,
  77         },
  78         {
  79                 .name   = "Partition 2",
  80                 .offset = MTDPART_OFS_NXTBLK,
  81                 .size   = MTDPART_SIZ_FULL,
  82         },
  83 };
  84
  85 static struct atmel_nand_data __initdata ek_nand_data = {
  86         .ale            = 21,
  87         .cle            = 22,
  88         .det_pin        = -EINVAL,
  89         .rdy_pin        = AT91_PIN_PD17,
  90         .enable_pin     = AT91_PIN_PB6,
  91         .ecc_mode       = NAND_ECC_SOFT,
  92         .on_flash_bbt   = 1,
  93         .parts          = ek_nand_partition,
  94         .num_parts      = ARRAY_SIZE(ek_nand_partition),
  95 };
  96
  97 static struct sam9_smc_config __initdata ek_nand_smc_config = {
  98         .ncs_read_setup         = 0,
  99         .nrd_setup              = 1,
 100         .ncs_write_setup        = 0,
 101         .nwe_setup              = 1,
 102
 103         .ncs_read_pulse         = 3,
 104         .nrd_pulse              = 3,
 105         .ncs_write_pulse        = 3,
 106         .nwe_pulse              = 3,
 107
 108         .read_cycle             = 5,
 109         .write_cycle            = 5,
 110
 111         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 112         .tdf_cycles             = 2,
 113 };
 114
 115 static void __init ek_add_device_nand(void)
 116 {
 117         /* configure chip-select 3 (NAND) */
 118         sam9_smc_configure(0, 3, &ek_nand_smc_config);
 119
 120         at91_add_device_nand(&ek_nand_data);
 121 }
 122
 123
 124 /*
 125  * SPI devices
 126  */
 127 static struct spi_board_info ek_spi_devices[] = {
 128         {       /* DataFlash chip */
 129                 .modalias       = "mtd_dataflash",
 130                 .chip_select    = 0,
 131                 .max_speed_hz   = 15 * 1000 * 1000,
 132                 .bus_num        = 0,
 133         },
 134 };
 135
 136
 137 /*
 138  * LCD Controller
 139  */
 140 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 141 static struct fb_videomode at91_tft_vga_modes[] = {
 142         {
 143                 .name           = "TX09D50VM1CCA @ 60",
 144                 .refresh        = 60,
 145                 .xres           = 240,          .yres           = 320,
 146                 .pixclock       = KHZ2PICOS(4965),
 147
 148                 .left_margin    = 1,            .right_margin   = 33,
 149                 .upper_margin   = 1,            .lower_margin   = 0,
 150                 .hsync_len      = 5,            .vsync_len      = 1,
 151
 152                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 153                 .vmode          = FB_VMODE_NONINTERLACED,
 154         },
 155 };
 156
 157 static struct fb_monspecs at91fb_default_monspecs = {
 158         .manufacturer   = "HIT",
 159         .monitor        = "TX09D50VM1CCA",
 160
 161         .modedb         = at91_tft_vga_modes,
 162         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 163         .hfmin          = 15000,
 164         .hfmax          = 64000,
 165         .vfmin          = 50,
 166         .vfmax          = 150,
 167 };
 168
 169 #define AT91SAM9RL_DEFAULT_LCDCON2      (ATMEL_LCDC_MEMOR_LITTLE \
 170                                         | ATMEL_LCDC_DISTYPE_TFT \
 171                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 172
 173 static void at91_lcdc_power_control(struct atmel_lcdfb_pdata *pdata, int on)
 174 {
 175         if (on)
 176                 at91_set_gpio_value(AT91_PIN_PC1, 0);   /* power up */
 177         else
 178                 at91_set_gpio_value(AT91_PIN_PC1, 1);   /* power down */
 179 }
 180
 181 /* Driver datas */
 182 static struct atmel_lcdfb_pdata __initdata ek_lcdc_data = {
 183         .lcdcon_is_backlight            = true,
 184         .default_bpp                    = 16,
 185         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 186         .default_lcdcon2                = AT91SAM9RL_DEFAULT_LCDCON2,
 187         .default_monspecs               = &at91fb_default_monspecs,
 188         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 189         .guard_time                     = 1,
 190         .lcd_wiring_mode                = ATMEL_LCDC_WIRING_RGB,
 191 };
 192
 193 #else
 194 static struct atmel_lcdfb_pdata __initdata ek_lcdc_data;
 195 #endif
 196
 197
 198 /*
 199  * AC97
 200  * reset_pin is not connected: NRST
 201  */
 202 static struct ac97c_platform_data ek_ac97_data = {
 203         .reset_pin      = -EINVAL,
 204 };
 205
 206
 207 /*
 208  * LEDs
 209  */
 210 static struct gpio_led ek_leds[] = {
 211         {       /* "bottom" led, green, userled1 to be defined */
 212                 .name                   = "ds1",
 213                 .gpio                   = AT91_PIN_PD15,
 214                 .active_low             = 1,
 215                 .default_trigger        = "none",
 216         },
 217         {       /* "bottom" led, green, userled2 to be defined */
 218                 .name                   = "ds2",
 219                 .gpio                   = AT91_PIN_PD16,
 220                 .active_low             = 1,
 221                 .default_trigger        = "none",
 222         },
 223         {       /* "power" led, yellow */
 224                 .name                   = "ds3",
 225                 .gpio                   = AT91_PIN_PD14,
 226                 .default_trigger        = "heartbeat",
 227         }
 228 };
 229
 230
 231 /*
 232  * Touchscreen
 233  */
 234 static struct at91_tsadcc_data ek_tsadcc_data = {
 235         .adc_clock              = 1000000,
 236         .pendet_debounce        = 0x0f,
 237         .ts_sample_hold_time    = 0x03,
 238 };
 239
 240
 241 /*
 242  * GPIO Buttons
 243  */
 244 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 245 static struct gpio_keys_button ek_buttons[] = {
 246         {
 247                 .gpio           = AT91_PIN_PB0,
 248                 .code           = BTN_2,
 249                 .desc           = "Right Click",
 250                 .active_low     = 1,
 251                 .wakeup         = 1,
 252         },
 253         {
 254                 .gpio           = AT91_PIN_PB1,
 255                 .code           = BTN_1,
 256                 .desc           = "Left Click",
 257                 .active_low     = 1,
 258                 .wakeup         = 1,
 259         }
 260 };
 261
 262 static struct gpio_keys_platform_data ek_button_data = {
 263         .buttons        = ek_buttons,
 264         .nbuttons       = ARRAY_SIZE(ek_buttons),
 265 };
 266
 267 static struct platform_device ek_button_device = {
 268         .name           = "gpio-keys",
 269         .id             = -1,
 270         .num_resources  = 0,
 271         .dev            = {
 272                 .platform_data  = &ek_button_data,
 273         }
 274 };
 275
 276 static void __init ek_add_device_buttons(void)
 277 {
 278         at91_set_gpio_input(AT91_PIN_PB1, 1);   /* btn1 */
 279         at91_set_deglitch(AT91_PIN_PB1, 1);
 280         at91_set_gpio_input(AT91_PIN_PB0, 1);   /* btn2 */
 281         at91_set_deglitch(AT91_PIN_PB0, 1);
 282
 283         platform_device_register(&ek_button_device);
 284 }
 285 #else
 286 static void __init ek_add_device_buttons(void) {}
 287 #endif
 288
 289
 290 static void __init ek_board_init(void)
 291 {
 292         /* Serial */
 293         /* DBGU on ttyS0. (Rx & Tx only) */
 294         at91_register_uart(0, 0, 0);
 295
 296         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS) */
 297         at91_register_uart(AT91SAM9RL_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS);
 298         at91_add_device_serial();
 299         /* USB HS */
 300         at91_add_device_usba(&ek_usba_udc_data);
 301         /* I2C */
 302         at91_add_device_i2c(NULL, 0);
 303         /* NAND */
 304         ek_add_device_nand();
 305         /* SPI */
 306         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 307         /* MMC */
 308         at91_add_device_mci(0, &mci0_data);
 309         /* LCD Controller */
 310         at91_add_device_lcdc(&ek_lcdc_data);
 311         /* AC97 */
 312         at91_add_device_ac97(&ek_ac97_data);
 313         /* Touch Screen Controller */
 314         at91_add_device_tsadcc(&ek_tsadcc_data);
 315         /* LEDs */
 316         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 317         /* Push Buttons */
 318         ek_add_device_buttons();
 319 }
 320
 321 MACHINE_START(AT91SAM9RLEK, "Atmel AT91SAM9RL-EK")
 322         /* Maintainer: Atmel */
 323         .init_time      = at91sam926x_pit_init,
 324         .map_io         = at91_map_io,
 325         .handle_irq     = at91_aic_handle_irq,
 326         .init_early     = ek_init_early,
 327         .init_irq       = at91_init_irq_default,
 328         .init_machine   = ek_board_init,
 329 MACHINE_END