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 "at91_shdwc.h"
  39 #include "board.h"
  40 #include "sam9_smc.h"
  41 #include "generic.h"
  42 #include "gpio.h"
  43
  44
  45 static void __init ek_init_early(void)
  46 {
  47         /* Initialize processor: 12.000 MHz crystal */
  48         at91_initialize(12000000);
  49 }
  50
  51 /*
  52  * USB HS Device port
  53  */
  54 static struct usba_platform_data __initdata ek_usba_udc_data = {
  55         .vbus_pin       = AT91_PIN_PA8,
  56 };
  57
  58
  59 /*
  60  * MCI (SD/MMC)
  61  */
  62 static struct mci_platform_data __initdata mci0_data = {
  63         .slot[0] = {
  64                 .bus_width      = 4,
  65                 .detect_pin     = AT91_PIN_PA15,
  66                 .wp_pin         = -EINVAL,
  67         },
  68 };
  69
  70
  71 /*
  72  * NAND flash
  73  */
  74 static struct mtd_partition __initdata ek_nand_partition[] = {
  75         {
  76                 .name   = "Partition 1",
  77                 .offset = 0,
  78                 .size   = SZ_256K,
  79         },
  80         {
  81                 .name   = "Partition 2",
  82                 .offset = MTDPART_OFS_NXTBLK,
  83                 .size   = MTDPART_SIZ_FULL,
  84         },
  85 };
  86
  87 static struct atmel_nand_data __initdata ek_nand_data = {
  88         .ale            = 21,
  89         .cle            = 22,
  90         .det_pin        = -EINVAL,
  91         .rdy_pin        = AT91_PIN_PD17,
  92         .enable_pin     = AT91_PIN_PB6,
  93         .ecc_mode       = NAND_ECC_SOFT,
  94         .on_flash_bbt   = 1,
  95         .parts          = ek_nand_partition,
  96         .num_parts      = ARRAY_SIZE(ek_nand_partition),
  97 };
  98
  99 static struct sam9_smc_config __initdata ek_nand_smc_config = {
 100         .ncs_read_setup         = 0,
 101         .nrd_setup              = 1,
 102         .ncs_write_setup        = 0,
 103         .nwe_setup              = 1,
 104
 105         .ncs_read_pulse         = 3,
 106         .nrd_pulse              = 3,
 107         .ncs_write_pulse        = 3,
 108         .nwe_pulse              = 3,
 109
 110         .read_cycle             = 5,
 111         .write_cycle            = 5,
 112
 113         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 114         .tdf_cycles             = 2,
 115 };
 116
 117 static void __init ek_add_device_nand(void)
 118 {
 119         /* configure chip-select 3 (NAND) */
 120         sam9_smc_configure(0, 3, &ek_nand_smc_config);
 121
 122         at91_add_device_nand(&ek_nand_data);
 123 }
 124
 125
 126 /*
 127  * SPI devices
 128  */
 129 static struct spi_board_info ek_spi_devices[] = {
 130         {       /* DataFlash chip */
 131                 .modalias       = "mtd_dataflash",
 132                 .chip_select    = 0,
 133                 .max_speed_hz   = 15 * 1000 * 1000,
 134                 .bus_num        = 0,
 135         },
 136 };
 137
 138
 139 /*
 140  * LCD Controller
 141  */
 142 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 143 static struct fb_videomode at91_tft_vga_modes[] = {
 144         {
 145                 .name           = "TX09D50VM1CCA @ 60",
 146                 .refresh        = 60,
 147                 .xres           = 240,          .yres           = 320,
 148                 .pixclock       = KHZ2PICOS(4965),
 149
 150                 .left_margin    = 1,            .right_margin   = 33,
 151                 .upper_margin   = 1,            .lower_margin   = 0,
 152                 .hsync_len      = 5,            .vsync_len      = 1,
 153
 154                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 155                 .vmode          = FB_VMODE_NONINTERLACED,
 156         },
 157 };
 158
 159 static struct fb_monspecs at91fb_default_monspecs = {
 160         .manufacturer   = "HIT",
 161         .monitor        = "TX09D50VM1CCA",
 162
 163         .modedb         = at91_tft_vga_modes,
 164         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 165         .hfmin          = 15000,
 166         .hfmax          = 64000,
 167         .vfmin          = 50,
 168         .vfmax          = 150,
 169 };
 170
 171 #define AT91SAM9RL_DEFAULT_LCDCON2      (ATMEL_LCDC_MEMOR_LITTLE \
 172                                         | ATMEL_LCDC_DISTYPE_TFT \
 173                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 174
 175 static void at91_lcdc_power_control(struct atmel_lcdfb_pdata *pdata, int on)
 176 {
 177         if (on)
 178                 at91_set_gpio_value(AT91_PIN_PC1, 0);   /* power up */
 179         else
 180                 at91_set_gpio_value(AT91_PIN_PC1, 1);   /* power down */
 181 }
 182
 183 /* Driver datas */
 184 static struct atmel_lcdfb_pdata __initdata ek_lcdc_data = {
 185         .lcdcon_is_backlight            = true,
 186         .default_bpp                    = 16,
 187         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 188         .default_lcdcon2                = AT91SAM9RL_DEFAULT_LCDCON2,
 189         .default_monspecs               = &at91fb_default_monspecs,
 190         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 191         .guard_time                     = 1,
 192         .lcd_wiring_mode                = ATMEL_LCDC_WIRING_RGB,
 193 };
 194
 195 #else
 196 static struct atmel_lcdfb_pdata __initdata ek_lcdc_data;
 197 #endif
 198
 199
 200 /*
 201  * AC97
 202  * reset_pin is not connected: NRST
 203  */
 204 static struct ac97c_platform_data ek_ac97_data = {
 205         .reset_pin      = -EINVAL,
 206 };
 207
 208
 209 /*
 210  * LEDs
 211  */
 212 static struct gpio_led ek_leds[] = {
 213         {       /* "bottom" led, green, userled1 to be defined */
 214                 .name                   = "ds1",
 215                 .gpio                   = AT91_PIN_PD15,
 216                 .active_low             = 1,
 217                 .default_trigger        = "none",
 218         },
 219         {       /* "bottom" led, green, userled2 to be defined */
 220                 .name                   = "ds2",
 221                 .gpio                   = AT91_PIN_PD16,
 222                 .active_low             = 1,
 223                 .default_trigger        = "none",
 224         },
 225         {       /* "power" led, yellow */
 226                 .name                   = "ds3",
 227                 .gpio                   = AT91_PIN_PD14,
 228                 .default_trigger        = "heartbeat",
 229         }
 230 };
 231
 232
 233 /*
 234  * ADC + Touchscreen
 235  */
 236 static struct at91_adc_data ek_adc_data = {
 237         .channels_used = BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5),
 238         .use_external_triggers = true,
 239         .vref = 3300,
 240         .touchscreen_type = ATMEL_ADC_TOUCHSCREEN_4WIRE,
 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         /* DBGU on ttyS0. (Rx & Tx only) */
 297         at91_register_uart(0, 0, 0);
 298
 299         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS) */
 300         at91_register_uart(AT91SAM9RL_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS);
 301         at91_add_device_serial();
 302         /* USB HS */
 303         at91_add_device_usba(&ek_usba_udc_data);
 304         /* I2C */
 305         at91_add_device_i2c(NULL, 0);
 306         /* NAND */
 307         ek_add_device_nand();
 308         /* SPI */
 309         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 310         /* MMC */
 311         at91_add_device_mci(0, &mci0_data);
 312         /* LCD Controller */
 313         at91_add_device_lcdc(&ek_lcdc_data);
 314         /* AC97 */
 315         at91_add_device_ac97(&ek_ac97_data);
 316         /* Touch Screen Controller + ADC */
 317         at91_add_device_adc(&ek_adc_data);
 318         /* LEDs */
 319         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 320         /* Push Buttons */
 321         ek_add_device_buttons();
 322 }
 323
 324 MACHINE_START(AT91SAM9RLEK, "Atmel AT91SAM9RL-EK")
 325         /* Maintainer: Atmel */
 326         .init_time      = at91sam926x_pit_init,
 327         .map_io         = at91_map_io,
 328         .handle_irq     = at91_aic_handle_irq,
 329         .init_early     = ek_init_early,
 330         .init_irq       = at91_init_irq_default,
 331         .init_machine   = ek_board_init,
 332 MACHINE_END