release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-at91/board-neocore926.c

   1 /*
   2  * linux/arch/arm/mach-at91/board-neocore926.c
   3  *
   4  *  Copyright (C) 2005 SAN People
   5  *  Copyright (C) 2007 Atmel Corporation
   6  *  Copyright (C) 2008 ADENEO.
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  */
  22
  23 #include <linux/types.h>
  24 #include <linux/init.h>
  25 #include <linux/mm.h>
  26 #include <linux/module.h>
  27 #include <linux/platform_device.h>
  28 #include <linux/spi/spi.h>
  29 #include <linux/spi/ads7846.h>
  30 #include <linux/fb.h>
  31 #include <linux/gpio_keys.h>
  32 #include <linux/input.h>
  33
  34 #include <video/atmel_lcdc.h>
  35
  36 #include <asm/setup.h>
  37 #include <asm/mach-types.h>
  38 #include <asm/irq.h>
  39 #include <asm/sizes.h>
  40
  41 #include <asm/mach/arch.h>
  42 #include <asm/mach/map.h>
  43 #include <asm/mach/irq.h>
  44
  45 #include <mach/hardware.h>
  46 #include <mach/board.h>
  47 #include <mach/gpio.h>
  48 #include <mach/at91sam9_smc.h>
  49
  50 #include "sam9_smc.h"
  51 #include "generic.h"
  52
  53
  54 static void __init neocore926_map_io(void)
  55 {
  56         /* Initialize processor: 20 MHz crystal */
  57         at91sam9263_initialize(20000000);
  58
  59         /* DBGU on ttyS0. (Rx & Tx only) */
  60         at91_register_uart(0, 0, 0);
  61
  62         /* USART0 on ttyS1. (Rx, Tx, RTS, CTS) */
  63         at91_register_uart(AT91SAM9263_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS);
  64
  65         /* set serial console to ttyS0 (ie, DBGU) */
  66         at91_set_serial_console(0);
  67 }
  68
  69 static void __init neocore926_init_irq(void)
  70 {
  71         at91sam9263_init_interrupts(NULL);
  72 }
  73
  74
  75 /*
  76  * USB Host port
  77  */
  78 static struct at91_usbh_data __initdata neocore926_usbh_data = {
  79         .ports          = 2,
  80         .vbus_pin       = { AT91_PIN_PA24, AT91_PIN_PA21 },
  81 };
  82
  83 /*
  84  * USB Device port
  85  */
  86 static struct at91_udc_data __initdata neocore926_udc_data = {
  87         .vbus_pin       = AT91_PIN_PA25,
  88         .pullup_pin     = 0,            /* pull-up driven by UDC */
  89 };
  90
  91
  92 /*
  93  * ADS7846 Touchscreen
  94  */
  95 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
  96 static int ads7843_pendown_state(void)
  97 {
  98         return !at91_get_gpio_value(AT91_PIN_PA15);     /* Touchscreen PENIRQ */
  99 }
 100
 101 static struct ads7846_platform_data ads_info = {
 102         .model                  = 7843,
 103         .x_min                  = 150,
 104         .x_max                  = 3830,
 105         .y_min                  = 190,
 106         .y_max                  = 3830,
 107         .vref_delay_usecs       = 100,
 108         .x_plate_ohms           = 450,
 109         .y_plate_ohms           = 250,
 110         .pressure_max           = 15000,
 111         .debounce_max           = 1,
 112         .debounce_rep           = 0,
 113         .debounce_tol           = (~0),
 114         .get_pendown_state      = ads7843_pendown_state,
 115 };
 116
 117 static void __init neocore926_add_device_ts(void)
 118 {
 119         at91_set_B_periph(AT91_PIN_PA15, 1);    /* External IRQ1, with pullup */
 120         at91_set_gpio_input(AT91_PIN_PC13, 1);  /* Touchscreen BUSY signal */
 121 }
 122 #else
 123 static void __init neocore926_add_device_ts(void) {}
 124 #endif
 125
 126 /*
 127  * SPI devices.
 128  */
 129 static struct spi_board_info neocore926_spi_devices[] = {
 130 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 131         {       /* DataFlash card */
 132                 .modalias       = "mtd_dataflash",
 133                 .chip_select    = 0,
 134                 .max_speed_hz   = 15 * 1000 * 1000,
 135                 .bus_num        = 0,
 136         },
 137 #endif
 138 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 139         {
 140                 .modalias       = "ads7846",
 141                 .chip_select    = 1,
 142                 .max_speed_hz   = 125000 * 16,
 143                 .bus_num        = 0,
 144                 .platform_data  = &ads_info,
 145                 .irq            = AT91SAM9263_ID_IRQ1,
 146         },
 147 #endif
 148 };
 149
 150
 151 /*
 152  * MCI (SD/MMC)
 153  */
 154 static struct at91_mmc_data __initdata neocore926_mmc_data = {
 155         .wire4          = 1,
 156         .det_pin        = AT91_PIN_PE18,
 157         .wp_pin         = AT91_PIN_PE19,
 158 };
 159
 160
 161 /*
 162  * MACB Ethernet device
 163  */
 164 static struct at91_eth_data __initdata neocore926_macb_data = {
 165         .phy_irq_pin    = AT91_PIN_PE31,
 166         .is_rmii        = 1,
 167 };
 168
 169
 170 /*
 171  * NAND flash
 172  */
 173 static struct mtd_partition __initdata neocore926_nand_partition[] = {
 174         {
 175                 .name   = "Linux Kernel",       /* "Partition 1", */
 176                 .offset = 0,
 177                 .size   = SZ_8M,
 178         },
 179         {
 180                 .name   = "Filesystem",         /* "Partition 2", */
 181                 .offset = MTDPART_OFS_NXTBLK,
 182                 .size   = SZ_32M,
 183         },
 184         {
 185                 .name   = "Free",               /* "Partition 3", */
 186                 .offset = MTDPART_OFS_NXTBLK,
 187                 .size   = MTDPART_SIZ_FULL,
 188         },
 189 };
 190
 191 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 192 {
 193         *num_partitions = ARRAY_SIZE(neocore926_nand_partition);
 194         return neocore926_nand_partition;
 195 }
 196
 197 static struct atmel_nand_data __initdata neocore926_nand_data = {
 198         .ale                    = 21,
 199         .cle                    = 22,
 200         .rdy_pin                = AT91_PIN_PB19,
 201         .rdy_pin_active_low     = 1,
 202         .enable_pin             = AT91_PIN_PD15,
 203         .partition_info         = nand_partitions,
 204 };
 205
 206 static struct sam9_smc_config __initdata neocore926_nand_smc_config = {
 207         .ncs_read_setup         = 0,
 208         .nrd_setup              = 1,
 209         .ncs_write_setup        = 0,
 210         .nwe_setup              = 1,
 211
 212         .ncs_read_pulse         = 4,
 213         .nrd_pulse              = 4,
 214         .ncs_write_pulse        = 4,
 215         .nwe_pulse              = 4,
 216
 217         .read_cycle             = 6,
 218         .write_cycle            = 6,
 219
 220         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 221         .tdf_cycles             = 2,
 222 };
 223
 224 static void __init neocore926_add_device_nand(void)
 225 {
 226         /* configure chip-select 3 (NAND) */
 227         sam9_smc_configure(3, &neocore926_nand_smc_config);
 228
 229         at91_add_device_nand(&neocore926_nand_data);
 230 }
 231
 232
 233 /*
 234  * LCD Controller
 235  */
 236 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 237 static struct fb_videomode at91_tft_vga_modes[] = {
 238         {
 239                 .name           = "TX09D50VM1CCA @ 60",
 240                 .refresh        = 60,
 241                 .xres           = 240,          .yres           = 320,
 242                 .pixclock       = KHZ2PICOS(5000),
 243
 244                 .left_margin    = 1,            .right_margin   = 33,
 245                 .upper_margin   = 1,            .lower_margin   = 0,
 246                 .hsync_len      = 5,            .vsync_len      = 1,
 247
 248                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 249                 .vmode          = FB_VMODE_NONINTERLACED,
 250         },
 251 };
 252
 253 static struct fb_monspecs at91fb_default_monspecs = {
 254         .manufacturer   = "HIT",
 255         .monitor        = "TX09D70VM1CCA",
 256
 257         .modedb         = at91_tft_vga_modes,
 258         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 259         .hfmin          = 15000,
 260         .hfmax          = 64000,
 261         .vfmin          = 50,
 262         .vfmax          = 150,
 263 };
 264
 265 #define AT91SAM9263_DEFAULT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
 266                                         | ATMEL_LCDC_DISTYPE_TFT \
 267                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 268
 269 static void at91_lcdc_power_control(int on)
 270 {
 271         at91_set_gpio_value(AT91_PIN_PA30, on);
 272 }
 273
 274 /* Driver datas */
 275 static struct atmel_lcdfb_info __initdata neocore926_lcdc_data = {
 276         .lcdcon_is_backlight            = true,
 277         .default_bpp                    = 16,
 278         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 279         .default_lcdcon2                = AT91SAM9263_DEFAULT_LCDCON2,
 280         .default_monspecs               = &at91fb_default_monspecs,
 281         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 282         .guard_time                     = 1,
 283         .lcd_wiring_mode                = ATMEL_LCDC_WIRING_RGB555,
 284 };
 285
 286 #else
 287 static struct atmel_lcdfb_info __initdata neocore926_lcdc_data;
 288 #endif
 289
 290
 291 /*
 292  * GPIO Buttons
 293  */
 294 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 295 static struct gpio_keys_button neocore926_buttons[] = {
 296         {       /* BP1, "leftclic" */
 297                 .code           = BTN_LEFT,
 298                 .gpio           = AT91_PIN_PC5,
 299                 .active_low     = 1,
 300                 .desc           = "left_click",
 301                 .wakeup         = 1,
 302         },
 303         {       /* BP2, "rightclic" */
 304                 .code           = BTN_RIGHT,
 305                 .gpio           = AT91_PIN_PC4,
 306                 .active_low     = 1,
 307                 .desc           = "right_click",
 308                 .wakeup         = 1,
 309         },
 310 };
 311
 312 static struct gpio_keys_platform_data neocore926_button_data = {
 313         .buttons        = neocore926_buttons,
 314         .nbuttons       = ARRAY_SIZE(neocore926_buttons),
 315 };
 316
 317 static struct platform_device neocore926_button_device = {
 318         .name           = "gpio-keys",
 319         .id             = -1,
 320         .num_resources  = 0,
 321         .dev            = {
 322                 .platform_data  = &neocore926_button_data,
 323         }
 324 };
 325
 326 static void __init neocore926_add_device_buttons(void)
 327 {
 328         at91_set_GPIO_periph(AT91_PIN_PC5, 0);  /* left button */
 329         at91_set_deglitch(AT91_PIN_PC5, 1);
 330         at91_set_GPIO_periph(AT91_PIN_PC4, 0);  /* right button */
 331         at91_set_deglitch(AT91_PIN_PC4, 1);
 332
 333         platform_device_register(&neocore926_button_device);
 334 }
 335 #else
 336 static void __init neocore926_add_device_buttons(void) {}
 337 #endif
 338
 339
 340 /*
 341  * AC97
 342  */
 343 static struct ac97c_platform_data neocore926_ac97_data = {
 344         .reset_pin      = AT91_PIN_PA13,
 345 };
 346
 347
 348 static void __init neocore926_board_init(void)
 349 {
 350         /* Serial */
 351         at91_add_device_serial();
 352
 353         /* USB Host */
 354         at91_add_device_usbh(&neocore926_usbh_data);
 355
 356         /* USB Device */
 357         at91_add_device_udc(&neocore926_udc_data);
 358
 359         /* SPI */
 360         at91_set_gpio_output(AT91_PIN_PE20, 1);         /* select spi0 clock */
 361         at91_add_device_spi(neocore926_spi_devices, ARRAY_SIZE(neocore926_spi_devices));
 362
 363         /* Touchscreen */
 364         neocore926_add_device_ts();
 365
 366         /* MMC */
 367         at91_add_device_mmc(1, &neocore926_mmc_data);
 368
 369         /* Ethernet */
 370         at91_add_device_eth(&neocore926_macb_data);
 371
 372         /* NAND */
 373         neocore926_add_device_nand();
 374
 375         /* I2C */
 376         at91_add_device_i2c(NULL, 0);
 377
 378         /* LCD Controller */
 379         at91_add_device_lcdc(&neocore926_lcdc_data);
 380
 381         /* Push Buttons */
 382         neocore926_add_device_buttons();
 383
 384         /* AC97 */
 385         at91_add_device_ac97(&neocore926_ac97_data);
 386 }
 387
 388 MACHINE_START(NEOCORE926, "ADENEO NEOCORE 926")
 389         /* Maintainer: ADENEO */
 390         .phys_io        = AT91_BASE_SYS,
 391         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 392         .boot_params    = AT91_SDRAM_BASE + 0x100,
 393         .timer          = &at91sam926x_timer,
 394         .map_io         = neocore926_map_io,
 395         .init_irq       = neocore926_init_irq,
 396         .init_machine   = neocore926_board_init,
 397 MACHINE_END