release/src-rt-6.x.4708/linux/linux-2.6.36/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/init.h>
  12 #include <linux/mm.h>
  13 #include <linux/module.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/spi/spi.h>
  16 #include <linux/fb.h>
  17 #include <linux/clk.h>
  18 #include <linux/input.h>
  19 #include <linux/gpio_keys.h>
  20
  21 #include <video/atmel_lcdc.h>
  22
  23 #include <asm/setup.h>
  24 #include <asm/mach-types.h>
  25 #include <asm/irq.h>
  26
  27 #include <asm/mach/arch.h>
  28 #include <asm/mach/map.h>
  29 #include <asm/mach/irq.h>
  30
  31 #include <mach/hardware.h>
  32 #include <mach/board.h>
  33 #include <mach/gpio.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_map_io(void)
  42 {
  43         /* Initialize processor: 12.000 MHz crystal */
  44         at91sam9rl_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         /* set serial console to ttyS0 (ie, DBGU) */
  53         at91_set_serial_console(0);
  54 }
  55
  56 static void __init ek_init_irq(void)
  57 {
  58         at91sam9rl_init_interrupts(NULL);
  59 }
  60
  61
  62 /*
  63  * USB HS Device port
  64  */
  65 static struct usba_platform_data __initdata ek_usba_udc_data = {
  66         .vbus_pin       = AT91_PIN_PA8,
  67 };
  68
  69
  70 /*
  71  * MCI (SD/MMC)
  72  */
  73 static struct at91_mmc_data __initdata ek_mmc_data = {
  74         .wire4          = 1,
  75         .det_pin        = AT91_PIN_PA15,
  76 //      .wp_pin         = ... not connected
  77 //      .vcc_pin        = ... not connected
  78 };
  79
  80
  81 /*
  82  * NAND flash
  83  */
  84 static struct mtd_partition __initdata ek_nand_partition[] = {
  85         {
  86                 .name   = "Partition 1",
  87                 .offset = 0,
  88                 .size   = SZ_256K,
  89         },
  90         {
  91                 .name   = "Partition 2",
  92                 .offset = MTDPART_OFS_NXTBLK,
  93                 .size   = MTDPART_SIZ_FULL,
  94         },
  95 };
  96
  97 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
  98 {
  99         *num_partitions = ARRAY_SIZE(ek_nand_partition);
 100         return ek_nand_partition;
 101 }
 102
 103 static struct atmel_nand_data __initdata ek_nand_data = {
 104         .ale            = 21,
 105         .cle            = 22,
 106 //      .det_pin        = ... not connected
 107         .rdy_pin        = AT91_PIN_PD17,
 108         .enable_pin     = AT91_PIN_PB6,
 109         .partition_info = nand_partitions,
 110 };
 111
 112 static struct sam9_smc_config __initdata ek_nand_smc_config = {
 113         .ncs_read_setup         = 0,
 114         .nrd_setup              = 1,
 115         .ncs_write_setup        = 0,
 116         .nwe_setup              = 1,
 117
 118         .ncs_read_pulse         = 3,
 119         .nrd_pulse              = 3,
 120         .ncs_write_pulse        = 3,
 121         .nwe_pulse              = 3,
 122
 123         .read_cycle             = 5,
 124         .write_cycle            = 5,
 125
 126         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 127         .tdf_cycles             = 2,
 128 };
 129
 130 static void __init ek_add_device_nand(void)
 131 {
 132         /* configure chip-select 3 (NAND) */
 133         sam9_smc_configure(3, &ek_nand_smc_config);
 134
 135         at91_add_device_nand(&ek_nand_data);
 136 }
 137
 138
 139 /*
 140  * SPI devices
 141  */
 142 static struct spi_board_info ek_spi_devices[] = {
 143         {       /* DataFlash chip */
 144                 .modalias       = "mtd_dataflash",
 145                 .chip_select    = 0,
 146                 .max_speed_hz   = 15 * 1000 * 1000,
 147                 .bus_num        = 0,
 148         },
 149 };
 150
 151
 152 /*
 153  * LCD Controller
 154  */
 155 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 156 static struct fb_videomode at91_tft_vga_modes[] = {
 157         {
 158                 .name           = "TX09D50VM1CCA @ 60",
 159                 .refresh        = 60,
 160                 .xres           = 240,          .yres           = 320,
 161                 .pixclock       = KHZ2PICOS(4965),
 162
 163                 .left_margin    = 1,            .right_margin   = 33,
 164                 .upper_margin   = 1,            .lower_margin   = 0,
 165                 .hsync_len      = 5,            .vsync_len      = 1,
 166
 167                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 168                 .vmode          = FB_VMODE_NONINTERLACED,
 169         },
 170 };
 171
 172 static struct fb_monspecs at91fb_default_monspecs = {
 173         .manufacturer   = "HIT",
 174         .monitor        = "TX09D50VM1CCA",
 175
 176         .modedb         = at91_tft_vga_modes,
 177         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 178         .hfmin          = 15000,
 179         .hfmax          = 64000,
 180         .vfmin          = 50,
 181         .vfmax          = 150,
 182 };
 183
 184 #define AT91SAM9RL_DEFAULT_LCDCON2      (ATMEL_LCDC_MEMOR_LITTLE \
 185                                         | ATMEL_LCDC_DISTYPE_TFT \
 186                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 187
 188 static void at91_lcdc_power_control(int on)
 189 {
 190         if (on)
 191                 at91_set_gpio_value(AT91_PIN_PC1, 0);   /* power up */
 192         else
 193                 at91_set_gpio_value(AT91_PIN_PC1, 1);   /* power down */
 194 }
 195
 196 /* Driver datas */
 197 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 198         .lcdcon_is_backlight            = true,
 199         .default_bpp                    = 16,
 200         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 201         .default_lcdcon2                = AT91SAM9RL_DEFAULT_LCDCON2,
 202         .default_monspecs               = &at91fb_default_monspecs,
 203         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 204         .guard_time                     = 1,
 205         .lcd_wiring_mode                = ATMEL_LCDC_WIRING_RGB,
 206 };
 207
 208 #else
 209 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 210 #endif
 211
 212
 213 /*
 214  * AC97
 215  * reset_pin is not connected: NRST
 216  */
 217 static struct ac97c_platform_data ek_ac97_data = {
 218 };
 219
 220
 221 /*
 222  * LEDs
 223  */
 224 static struct gpio_led ek_leds[] = {
 225         {       /* "bottom" led, green, userled1 to be defined */
 226                 .name                   = "ds1",
 227                 .gpio                   = AT91_PIN_PD15,
 228                 .active_low             = 1,
 229                 .default_trigger        = "none",
 230         },
 231         {       /* "bottom" led, green, userled2 to be defined */
 232                 .name                   = "ds2",
 233                 .gpio                   = AT91_PIN_PD16,
 234                 .active_low             = 1,
 235                 .default_trigger        = "none",
 236         },
 237         {       /* "power" led, yellow */
 238                 .name                   = "ds3",
 239                 .gpio                   = AT91_PIN_PD14,
 240                 .default_trigger        = "heartbeat",
 241         }
 242 };
 243
 244
 245 /*
 246  * Touchscreen
 247  */
 248 static struct at91_tsadcc_data ek_tsadcc_data = {
 249         .adc_clock              = 1000000,
 250         .pendet_debounce        = 0x0f,
 251         .ts_sample_hold_time    = 0x03,
 252 };
 253
 254
 255 /*
 256  * GPIO Buttons
 257  */
 258 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 259 static struct gpio_keys_button ek_buttons[] = {
 260         {
 261                 .gpio           = AT91_PIN_PB0,
 262                 .code           = BTN_2,
 263                 .desc           = "Right Click",
 264                 .active_low     = 1,
 265                 .wakeup         = 1,
 266         },
 267         {
 268                 .gpio           = AT91_PIN_PB1,
 269                 .code           = BTN_1,
 270                 .desc           = "Left Click",
 271                 .active_low     = 1,
 272                 .wakeup         = 1,
 273         }
 274 };
 275
 276 static struct gpio_keys_platform_data ek_button_data = {
 277         .buttons        = ek_buttons,
 278         .nbuttons       = ARRAY_SIZE(ek_buttons),
 279 };
 280
 281 static struct platform_device ek_button_device = {
 282         .name           = "gpio-keys",
 283         .id             = -1,
 284         .num_resources  = 0,
 285         .dev            = {
 286                 .platform_data  = &ek_button_data,
 287         }
 288 };
 289
 290 static void __init ek_add_device_buttons(void)
 291 {
 292         at91_set_gpio_input(AT91_PIN_PB1, 1);   /* btn1 */
 293         at91_set_deglitch(AT91_PIN_PB1, 1);
 294         at91_set_gpio_input(AT91_PIN_PB0, 1);   /* btn2 */
 295         at91_set_deglitch(AT91_PIN_PB0, 1);
 296
 297         platform_device_register(&ek_button_device);
 298 }
 299 #else
 300 static void __init ek_add_device_buttons(void) {}
 301 #endif
 302
 303
 304 static void __init ek_board_init(void)
 305 {
 306         /* Serial */
 307         at91_add_device_serial();
 308         /* USB HS */
 309         at91_add_device_usba(&ek_usba_udc_data);
 310         /* I2C */
 311         at91_add_device_i2c(NULL, 0);
 312         /* NAND */
 313         ek_add_device_nand();
 314         /* SPI */
 315         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 316         /* MMC */
 317         at91_add_device_mmc(0, &ek_mmc_data);
 318         /* LCD Controller */
 319         at91_add_device_lcdc(&ek_lcdc_data);
 320         /* AC97 */
 321         at91_add_device_ac97(&ek_ac97_data);
 322         /* Touch Screen Controller */
 323         at91_add_device_tsadcc(&ek_tsadcc_data);
 324         /* LEDs */
 325         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 326         /* Push Buttons */
 327         ek_add_device_buttons();
 328 }
 329
 330 MACHINE_START(AT91SAM9RLEK, "Atmel AT91SAM9RL-EK")
 331         /* Maintainer: Atmel */
 332         .phys_io        = AT91_BASE_SYS,
 333         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 334         .boot_params    = AT91_SDRAM_BASE + 0x100,
 335         .timer          = &at91sam926x_timer,
 336         .map_io         = ek_map_io,
 337         .init_irq       = ek_init_irq,
 338         .init_machine   = ek_board_init,
 339 MACHINE_END