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 #include <linux/platform_data/at91_adc.h>
  22
  23 #include <video/atmel_lcdc.h>
  24
  25 #include <asm/setup.h>
  26 #include <asm/mach-types.h>
  27 #include <asm/irq.h>
  28
  29 #include <asm/mach/arch.h>
  30 #include <asm/mach/map.h>
  31 #include <asm/mach/irq.h>
  32
  33 #include <mach/hardware.h>
  34 #include <mach/at91sam9_smc.h>
  35
  36
  37 #include "at91_aic.h"
  38 #include "board.h"
  39 #include "sam9_smc.h"
  40 #include "generic.h"
  41 #include "gpio.h"
  42
  43
  44 static void __init ek_init_early(void)
  45 {
  46         /* Initialize processor: 12.000 MHz crystal */
  47         at91_initialize(12000000);
  48 }
  49
  50 /*
  51  * USB HS Device port
  52  */
  53 static struct usba_platform_data __initdata ek_usba_udc_data = {
  54         .vbus_pin       = AT91_PIN_PA8,
  55 };
  56
  57
  58 /*
  59  * MCI (SD/MMC)
  60  */
  61 static struct mci_platform_data __initdata mci0_data = {
  62         .slot[0] = {
  63                 .bus_width      = 4,
  64                 .detect_pin     = AT91_PIN_PA15,
  65                 .wp_pin         = -EINVAL,
  66         },
  67 };
  68
  69
  70 /*
  71  * NAND flash
  72  */
  73 static struct mtd_partition __initdata ek_nand_partition[] = {
  74         {
  75                 .name   = "Partition 1",
  76                 .offset = 0,
  77                 .size   = SZ_256K,
  78         },
  79         {
  80                 .name   = "Partition 2",
  81                 .offset = MTDPART_OFS_NXTBLK,
  82                 .size   = MTDPART_SIZ_FULL,
  83         },
  84 };
  85
  86 static struct atmel_nand_data __initdata ek_nand_data = {
  87         .ale            = 21,
  88         .cle            = 22,
  89         .det_pin        = -EINVAL,
  90         .rdy_pin        = AT91_PIN_PD17,
  91         .enable_pin     = AT91_PIN_PB6,
  92         .ecc_mode       = NAND_ECC_SOFT,
  93         .on_flash_bbt   = 1,
  94         .parts          = ek_nand_partition,
  95         .num_parts      = ARRAY_SIZE(ek_nand_partition),
  96 };
  97
  98 static struct sam9_smc_config __initdata ek_nand_smc_config = {
  99         .ncs_read_setup         = 0,
 100         .nrd_setup              = 1,
 101         .ncs_write_setup        = 0,
 102         .nwe_setup              = 1,
 103
 104         .ncs_read_pulse         = 3,
 105         .nrd_pulse              = 3,
 106         .ncs_write_pulse        = 3,
 107         .nwe_pulse              = 3,
 108
 109         .read_cycle             = 5,
 110         .write_cycle            = 5,
 111
 112         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 113         .tdf_cycles             = 2,
 114 };
 115
 116 static void __init ek_add_device_nand(void)
 117 {
 118         /* configure chip-select 3 (NAND) */
 119         sam9_smc_configure(0, 3, &ek_nand_smc_config);
 120
 121         at91_add_device_nand(&ek_nand_data);
 122 }
 123
 124
 125 /*
 126  * SPI devices
 127  */
 128 static struct spi_board_info ek_spi_devices[] = {
 129         {       /* DataFlash chip */
 130                 .modalias       = "mtd_dataflash",
 131                 .chip_select    = 0,
 132                 .max_speed_hz   = 15 * 1000 * 1000,
 133                 .bus_num        = 0,
 134         },
 135 };
 136
 137
 138 /*
 139  * LCD Controller
 140  */
 141 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 142 static struct fb_videomode at91_tft_vga_modes[] = {
 143         {
 144                 .name           = "TX09D50VM1CCA @ 60",
 145                 .refresh        = 60,
 146                 .xres           = 240,          .yres           = 320,
 147                 .pixclock       = KHZ2PICOS(4965),
 148
 149                 .left_margin    = 1,            .right_margin   = 33,
 150                 .upper_margin   = 1,            .lower_margin   = 0,
 151                 .hsync_len      = 5,            .vsync_len      = 1,
 152
 153                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 154                 .vmode          = FB_VMODE_NONINTERLACED,
 155         },
 156 };
 157
 158 static struct fb_monspecs at91fb_default_monspecs = {
 159         .manufacturer   = "HIT",
 160         .monitor        = "TX09D50VM1CCA",
 161
 162         .modedb         = at91_tft_vga_modes,
 163         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 164         .hfmin          = 15000,
 165         .hfmax          = 64000,
 166         .vfmin          = 50,
 167         .vfmax          = 150,
 168 };
 169
 170 #define AT91SAM9RL_DEFAULT_LCDCON2      (ATMEL_LCDC_MEMOR_LITTLE \
 171                                         | ATMEL_LCDC_DISTYPE_TFT \
 172                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 173
 174 static void at91_lcdc_power_control(struct atmel_lcdfb_pdata *pdata, int on)
 175 {
 176         if (on)
 177                 at91_set_gpio_value(AT91_PIN_PC1, 0);   /* power up */
 178         else
 179                 at91_set_gpio_value(AT91_PIN_PC1, 1);   /* power down */
 180 }
 181
 182 /* Driver datas */
 183 static struct atmel_lcdfb_pdata __initdata ek_lcdc_data = {
 184         .lcdcon_is_backlight            = true,
 185         .default_bpp                    = 16,
 186         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 187         .default_lcdcon2                = AT91SAM9RL_DEFAULT_LCDCON2,
 188         .default_monspecs               = &at91fb_default_monspecs,
 189         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 190         .guard_time                     = 1,
 191         .lcd_wiring_mode                = ATMEL_LCDC_WIRING_RGB,
 192 };
 193
 194 #else
 195 static struct atmel_lcdfb_pdata __initdata ek_lcdc_data;
 196 #endif
 197
 198
 199 /*
 200  * AC97
 201  * reset_pin is not connected: NRST
 202  */
 203 static struct ac97c_platform_data ek_ac97_data = {
 204         .reset_pin      = -EINVAL,
 205 };
 206
 207
 208 /*
 209  * LEDs
 210  */
 211 static struct gpio_led ek_leds[] = {
 212         {       /* "bottom" led, green, userled1 to be defined */
 213                 .name                   = "ds1",
 214                 .gpio                   = AT91_PIN_PD15,
 215                 .active_low             = 1,
 216                 .default_trigger        = "none",
 217         },
 218         {       /* "bottom" led, green, userled2 to be defined */
 219                 .name                   = "ds2",
 220                 .gpio                   = AT91_PIN_PD16,
 221                 .active_low             = 1,
 222                 .default_trigger        = "none",
 223         },
 224         {       /* "power" led, yellow */
 225                 .name                   = "ds3",
 226                 .gpio                   = AT91_PIN_PD14,
 227                 .default_trigger        = "heartbeat",
 228         }
 229 };
 230
 231
 232 /*
 233  * ADC + Touchscreen
 234  */
 235 static struct at91_adc_data ek_adc_data = {
 236         .channels_used = BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5),
 237         .use_external_triggers = true,
 238         .vref = 3300,
 239         .touchscreen_type = ATMEL_ADC_TOUCHSCREEN_4WIRE,
 240 };
 241
 242
 243 /*
 244  * GPIO Buttons
 245  */
 246 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 247 static struct gpio_keys_button ek_buttons[] = {
 248         {
 249                 .gpio           = AT91_PIN_PB0,
 250                 .code           = BTN_2,
 251                 .desc           = "Right Click",
 252                 .active_low     = 1,
 253                 .wakeup         = 1,
 254         },
 255         {
 256                 .gpio           = AT91_PIN_PB1,
 257                 .code           = BTN_1,
 258                 .desc           = "Left Click",
 259                 .active_low     = 1,
 260                 .wakeup         = 1,
 261         }
 262 };
 263
 264 static struct gpio_keys_platform_data ek_button_data = {
 265         .buttons        = ek_buttons,
 266         .nbuttons       = ARRAY_SIZE(ek_buttons),
 267 };
 268
 269 static struct platform_device ek_button_device = {
 270         .name           = "gpio-keys",
 271         .id             = -1,
 272         .num_resources  = 0,
 273         .dev            = {
 274                 .platform_data  = &ek_button_data,
 275         }
 276 };
 277
 278 static void __init ek_add_device_buttons(void)
 279 {
 280         at91_set_gpio_input(AT91_PIN_PB1, 1);   /* btn1 */
 281         at91_set_deglitch(AT91_PIN_PB1, 1);
 282         at91_set_gpio_input(AT91_PIN_PB0, 1);   /* btn2 */
 283         at91_set_deglitch(AT91_PIN_PB0, 1);
 284
 285         platform_device_register(&ek_button_device);
 286 }
 287 #else
 288 static void __init ek_add_device_buttons(void) {}
 289 #endif
 290
 291
 292 static void __init ek_board_init(void)
 293 {
 294         at91_register_devices();
 295
 296         /* Serial */
 297         /* DBGU on ttyS0. (Rx & Tx only) */
 298         at91_register_uart(0, 0, 0);
 299
 300         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS) */
 301         at91_register_uart(AT91SAM9RL_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS);
 302         at91_add_device_serial();
 303         /* USB HS */
 304         at91_add_device_usba(&ek_usba_udc_data);
 305         /* I2C */
 306         at91_add_device_i2c(NULL, 0);
 307         /* NAND */
 308         ek_add_device_nand();
 309         /* SPI */
 310         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 311         /* MMC */
 312         at91_add_device_mci(0, &mci0_data);
 313         /* LCD Controller */
 314         at91_add_device_lcdc(&ek_lcdc_data);
 315         /* AC97 */
 316         at91_add_device_ac97(&ek_ac97_data);
 317         /* Touch Screen Controller + ADC */
 318         at91_add_device_adc(&ek_adc_data);
 319         /* LEDs */
 320         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 321         /* Push Buttons */
 322         ek_add_device_buttons();
 323 }
 324
 325 MACHINE_START(AT91SAM9RLEK, "Atmel AT91SAM9RL-EK")
 326         /* Maintainer: Atmel */
 327         .init_time      = at91_init_time,
 328         .map_io         = at91_map_io,
 329         .handle_irq     = at91_aic_handle_irq,
 330         .init_early     = ek_init_early,
 331         .init_irq       = at91_init_irq_default,
 332         .init_machine   = ek_board_init,
 333 MACHINE_END