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/at91_aic.h>
  34 #include <mach/at91sam9_smc.h>
  35 #include <mach/at91_shdwc.h>
  36
  37 #include "board.h"
  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 mci_platform_data __initdata mci0_data = {
  60         .slot[0] = {
  61                 .bus_width      = 4,
  62                 .detect_pin     = AT91_PIN_PA15,
  63                 .wp_pin         = -EINVAL,
  64         },
  65 };
  66
  67
  68 /*
  69  * NAND flash
  70  */
  71 static struct mtd_partition __initdata ek_nand_partition[] = {
  72         {
  73                 .name   = "Partition 1",
  74                 .offset = 0,
  75                 .size   = SZ_256K,
  76         },
  77         {
  78                 .name   = "Partition 2",
  79                 .offset = MTDPART_OFS_NXTBLK,
  80                 .size   = MTDPART_SIZ_FULL,
  81         },
  82 };
  83
  84 static struct atmel_nand_data __initdata ek_nand_data = {
  85         .ale            = 21,
  86         .cle            = 22,
  87         .det_pin        = -EINVAL,
  88         .rdy_pin        = AT91_PIN_PD17,
  89         .enable_pin     = AT91_PIN_PB6,
  90         .ecc_mode       = NAND_ECC_SOFT,
  91         .on_flash_bbt   = 1,
  92         .parts          = ek_nand_partition,
  93         .num_parts      = ARRAY_SIZE(ek_nand_partition),
  94 };
  95
  96 static struct sam9_smc_config __initdata ek_nand_smc_config = {
  97         .ncs_read_setup         = 0,
  98         .nrd_setup              = 1,
  99         .ncs_write_setup        = 0,
 100         .nwe_setup              = 1,
 101
 102         .ncs_read_pulse         = 3,
 103         .nrd_pulse              = 3,
 104         .ncs_write_pulse        = 3,
 105         .nwe_pulse              = 3,
 106
 107         .read_cycle             = 5,
 108         .write_cycle            = 5,
 109
 110         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 111         .tdf_cycles             = 2,
 112 };
 113
 114 static void __init ek_add_device_nand(void)
 115 {
 116         /* configure chip-select 3 (NAND) */
 117         sam9_smc_configure(0, 3, &ek_nand_smc_config);
 118
 119         at91_add_device_nand(&ek_nand_data);
 120 }
 121
 122
 123 /*
 124  * SPI devices
 125  */
 126 static struct spi_board_info ek_spi_devices[] = {
 127         {       /* DataFlash chip */
 128                 .modalias       = "mtd_dataflash",
 129                 .chip_select    = 0,
 130                 .max_speed_hz   = 15 * 1000 * 1000,
 131                 .bus_num        = 0,
 132         },
 133 };
 134
 135
 136 /*
 137  * LCD Controller
 138  */
 139 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 140 static struct fb_videomode at91_tft_vga_modes[] = {
 141         {
 142                 .name           = "TX09D50VM1CCA @ 60",
 143                 .refresh        = 60,
 144                 .xres           = 240,          .yres           = 320,
 145                 .pixclock       = KHZ2PICOS(4965),
 146
 147                 .left_margin    = 1,            .right_margin   = 33,
 148                 .upper_margin   = 1,            .lower_margin   = 0,
 149                 .hsync_len      = 5,            .vsync_len      = 1,
 150
 151                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 152                 .vmode          = FB_VMODE_NONINTERLACED,
 153         },
 154 };
 155
 156 static struct fb_monspecs at91fb_default_monspecs = {
 157         .manufacturer   = "HIT",
 158         .monitor        = "TX09D50VM1CCA",
 159
 160         .modedb         = at91_tft_vga_modes,
 161         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 162         .hfmin          = 15000,
 163         .hfmax          = 64000,
 164         .vfmin          = 50,
 165         .vfmax          = 150,
 166 };
 167
 168 #define AT91SAM9RL_DEFAULT_LCDCON2      (ATMEL_LCDC_MEMOR_LITTLE \
 169                                         | ATMEL_LCDC_DISTYPE_TFT \
 170                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 171
 172 static void at91_lcdc_power_control(int on)
 173 {
 174         if (on)
 175                 at91_set_gpio_value(AT91_PIN_PC1, 0);   /* power up */
 176         else
 177                 at91_set_gpio_value(AT91_PIN_PC1, 1);   /* power down */
 178 }
 179
 180 /* Driver datas */
 181 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 182         .lcdcon_is_backlight            = true,
 183         .default_bpp                    = 16,
 184         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 185         .default_lcdcon2                = AT91SAM9RL_DEFAULT_LCDCON2,
 186         .default_monspecs               = &at91fb_default_monspecs,
 187         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 188         .guard_time                     = 1,
 189         .lcd_wiring_mode                = ATMEL_LCDC_WIRING_RGB,
 190 };
 191
 192 #else
 193 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 194 #endif
 195
 196
 197 /*
 198  * AC97
 199  * reset_pin is not connected: NRST
 200  */
 201 static struct ac97c_platform_data ek_ac97_data = {
 202         .reset_pin      = -EINVAL,
 203 };
 204
 205
 206 /*
 207  * LEDs
 208  */
 209 static struct gpio_led ek_leds[] = {
 210         {       /* "bottom" led, green, userled1 to be defined */
 211                 .name                   = "ds1",
 212                 .gpio                   = AT91_PIN_PD15,
 213                 .active_low             = 1,
 214                 .default_trigger        = "none",
 215         },
 216         {       /* "bottom" led, green, userled2 to be defined */
 217                 .name                   = "ds2",
 218                 .gpio                   = AT91_PIN_PD16,
 219                 .active_low             = 1,
 220                 .default_trigger        = "none",
 221         },
 222         {       /* "power" led, yellow */
 223                 .name                   = "ds3",
 224                 .gpio                   = AT91_PIN_PD14,
 225                 .default_trigger        = "heartbeat",
 226         }
 227 };
 228
 229
 230 /*
 231  * Touchscreen
 232  */
 233 static struct at91_tsadcc_data ek_tsadcc_data = {
 234         .adc_clock              = 1000000,
 235         .pendet_debounce        = 0x0f,
 236         .ts_sample_hold_time    = 0x03,
 237 };
 238
 239
 240 /*
 241  * GPIO Buttons
 242  */
 243 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 244 static struct gpio_keys_button ek_buttons[] = {
 245         {
 246                 .gpio           = AT91_PIN_PB0,
 247                 .code           = BTN_2,
 248                 .desc           = "Right Click",
 249                 .active_low     = 1,
 250                 .wakeup         = 1,
 251         },
 252         {
 253                 .gpio           = AT91_PIN_PB1,
 254                 .code           = BTN_1,
 255                 .desc           = "Left Click",
 256                 .active_low     = 1,
 257                 .wakeup         = 1,
 258         }
 259 };
 260
 261 static struct gpio_keys_platform_data ek_button_data = {
 262         .buttons        = ek_buttons,
 263         .nbuttons       = ARRAY_SIZE(ek_buttons),
 264 };
 265
 266 static struct platform_device ek_button_device = {
 267         .name           = "gpio-keys",
 268         .id             = -1,
 269         .num_resources  = 0,
 270         .dev            = {
 271                 .platform_data  = &ek_button_data,
 272         }
 273 };
 274
 275 static void __init ek_add_device_buttons(void)
 276 {
 277         at91_set_gpio_input(AT91_PIN_PB1, 1);   /* btn1 */
 278         at91_set_deglitch(AT91_PIN_PB1, 1);
 279         at91_set_gpio_input(AT91_PIN_PB0, 1);   /* btn2 */
 280         at91_set_deglitch(AT91_PIN_PB0, 1);
 281
 282         platform_device_register(&ek_button_device);
 283 }
 284 #else
 285 static void __init ek_add_device_buttons(void) {}
 286 #endif
 287
 288
 289 static void __init ek_board_init(void)
 290 {
 291         /* Serial */
 292         /* DBGU on ttyS0. (Rx & Tx only) */
 293         at91_register_uart(0, 0, 0);
 294
 295         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS) */
 296         at91_register_uart(AT91SAM9RL_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS);
 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_mci(0, &mci0_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         .handle_irq     = at91_aic_handle_irq,
 325         .init_early     = ek_init_early,
 326         .init_irq       = at91_init_irq_default,
 327         .init_machine   = ek_board_init,
 328 MACHINE_END