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/gpio.h>
  25 #include <linux/init.h>
  26 #include <linux/mm.h>
  27 #include <linux/module.h>
  28 #include <linux/platform_device.h>
  29 #include <linux/spi/spi.h>
  30 #include <linux/spi/ads7846.h>
  31 #include <linux/fb.h>
  32 #include <linux/gpio_keys.h>
  33 #include <linux/input.h>
  34
  35 #include <video/atmel_lcdc.h>
  36
  37 #include <asm/setup.h>
  38 #include <asm/mach-types.h>
  39 #include <asm/irq.h>
  40 #include <asm/sizes.h>
  41
  42 #include <asm/mach/arch.h>
  43 #include <asm/mach/map.h>
  44 #include <asm/mach/irq.h>
  45
  46 #include <mach/hardware.h>
  47 #include <mach/board.h>
  48 #include <mach/at91_aic.h>
  49 #include <mach/at91sam9_smc.h>
  50
  51 #include "sam9_smc.h"
  52 #include "generic.h"
  53
  54
  55 static void __init neocore926_init_early(void)
  56 {
  57         /* Initialize processor: 20 MHz crystal */
  58         at91_initialize(20000000);
  59 }
  60
  61 /*
  62  * USB Host port
  63  */
  64 static struct at91_usbh_data __initdata neocore926_usbh_data = {
  65         .ports          = 2,
  66         .vbus_pin       = { AT91_PIN_PA24, AT91_PIN_PA21 },
  67         .overcurrent_pin= {-EINVAL, -EINVAL},
  68 };
  69
  70 /*
  71  * USB Device port
  72  */
  73 static struct at91_udc_data __initdata neocore926_udc_data = {
  74         .vbus_pin       = AT91_PIN_PA25,
  75         .pullup_pin     = -EINVAL,              /* pull-up driven by UDC */
  76 };
  77
  78
  79 /*
  80  * ADS7846 Touchscreen
  81  */
  82 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
  83 static int ads7843_pendown_state(void)
  84 {
  85         return !at91_get_gpio_value(AT91_PIN_PA15);     /* Touchscreen PENIRQ */
  86 }
  87
  88 static struct ads7846_platform_data ads_info = {
  89         .model                  = 7843,
  90         .x_min                  = 150,
  91         .x_max                  = 3830,
  92         .y_min                  = 190,
  93         .y_max                  = 3830,
  94         .vref_delay_usecs       = 100,
  95         .x_plate_ohms           = 450,
  96         .y_plate_ohms           = 250,
  97         .pressure_max           = 15000,
  98         .debounce_max           = 1,
  99         .debounce_rep           = 0,
 100         .debounce_tol           = (~0),
 101         .get_pendown_state      = ads7843_pendown_state,
 102 };
 103
 104 static void __init neocore926_add_device_ts(void)
 105 {
 106         at91_set_B_periph(AT91_PIN_PA15, 1);    /* External IRQ1, with pullup */
 107         at91_set_gpio_input(AT91_PIN_PC13, 1);  /* Touchscreen BUSY signal */
 108 }
 109 #else
 110 static void __init neocore926_add_device_ts(void) {}
 111 #endif
 112
 113 /*
 114  * SPI devices.
 115  */
 116 static struct spi_board_info neocore926_spi_devices[] = {
 117 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 118         {       /* DataFlash card */
 119                 .modalias       = "mtd_dataflash",
 120                 .chip_select    = 0,
 121                 .max_speed_hz   = 15 * 1000 * 1000,
 122                 .bus_num        = 0,
 123         },
 124 #endif
 125 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 126         {
 127                 .modalias       = "ads7846",
 128                 .chip_select    = 1,
 129                 .max_speed_hz   = 125000 * 16,
 130                 .bus_num        = 0,
 131                 .platform_data  = &ads_info,
 132                 .irq            = AT91SAM9263_ID_IRQ1,
 133         },
 134 #endif
 135 };
 136
 137
 138 /*
 139  * MCI (SD/MMC)
 140  */
 141 static struct at91_mmc_data __initdata neocore926_mmc_data = {
 142         .wire4          = 1,
 143         .det_pin        = AT91_PIN_PE18,
 144         .wp_pin         = AT91_PIN_PE19,
 145         .vcc_pin        = -EINVAL,
 146 };
 147
 148
 149 /*
 150  * MACB Ethernet device
 151  */
 152 static struct macb_platform_data __initdata neocore926_macb_data = {
 153         .phy_irq_pin    = AT91_PIN_PE31,
 154         .is_rmii        = 1,
 155 };
 156
 157
 158 /*
 159  * NAND flash
 160  */
 161 static struct mtd_partition __initdata neocore926_nand_partition[] = {
 162         {
 163                 .name   = "Linux Kernel",       /* "Partition 1", */
 164                 .offset = 0,
 165                 .size   = SZ_8M,
 166         },
 167         {
 168                 .name   = "Filesystem",         /* "Partition 2", */
 169                 .offset = MTDPART_OFS_NXTBLK,
 170                 .size   = SZ_32M,
 171         },
 172         {
 173                 .name   = "Free",               /* "Partition 3", */
 174                 .offset = MTDPART_OFS_NXTBLK,
 175                 .size   = MTDPART_SIZ_FULL,
 176         },
 177 };
 178
 179 static struct atmel_nand_data __initdata neocore926_nand_data = {
 180         .ale                    = 21,
 181         .cle                    = 22,
 182         .rdy_pin                = AT91_PIN_PB19,
 183         .rdy_pin_active_low     = 1,
 184         .enable_pin             = AT91_PIN_PD15,
 185         .ecc_mode               = NAND_ECC_SOFT,
 186         .parts                  = neocore926_nand_partition,
 187         .num_parts              = ARRAY_SIZE(neocore926_nand_partition),
 188         .det_pin                = -EINVAL,
 189 };
 190
 191 static struct sam9_smc_config __initdata neocore926_nand_smc_config = {
 192         .ncs_read_setup         = 0,
 193         .nrd_setup              = 1,
 194         .ncs_write_setup        = 0,
 195         .nwe_setup              = 1,
 196
 197         .ncs_read_pulse         = 4,
 198         .nrd_pulse              = 4,
 199         .ncs_write_pulse        = 4,
 200         .nwe_pulse              = 4,
 201
 202         .read_cycle             = 6,
 203         .write_cycle            = 6,
 204
 205         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 206         .tdf_cycles             = 2,
 207 };
 208
 209 static void __init neocore926_add_device_nand(void)
 210 {
 211         /* configure chip-select 3 (NAND) */
 212         sam9_smc_configure(0, 3, &neocore926_nand_smc_config);
 213
 214         at91_add_device_nand(&neocore926_nand_data);
 215 }
 216
 217
 218 /*
 219  * LCD Controller
 220  */
 221 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 222 static struct fb_videomode at91_tft_vga_modes[] = {
 223         {
 224                 .name           = "TX09D50VM1CCA @ 60",
 225                 .refresh        = 60,
 226                 .xres           = 240,          .yres           = 320,
 227                 .pixclock       = KHZ2PICOS(5000),
 228
 229                 .left_margin    = 1,            .right_margin   = 33,
 230                 .upper_margin   = 1,            .lower_margin   = 0,
 231                 .hsync_len      = 5,            .vsync_len      = 1,
 232
 233                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 234                 .vmode          = FB_VMODE_NONINTERLACED,
 235         },
 236 };
 237
 238 static struct fb_monspecs at91fb_default_monspecs = {
 239         .manufacturer   = "HIT",
 240         .monitor        = "TX09D70VM1CCA",
 241
 242         .modedb         = at91_tft_vga_modes,
 243         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 244         .hfmin          = 15000,
 245         .hfmax          = 64000,
 246         .vfmin          = 50,
 247         .vfmax          = 150,
 248 };
 249
 250 #define AT91SAM9263_DEFAULT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
 251                                         | ATMEL_LCDC_DISTYPE_TFT \
 252                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 253
 254 static void at91_lcdc_power_control(int on)
 255 {
 256         at91_set_gpio_value(AT91_PIN_PA30, on);
 257 }
 258
 259 /* Driver datas */
 260 static struct atmel_lcdfb_info __initdata neocore926_lcdc_data = {
 261         .lcdcon_is_backlight            = true,
 262         .default_bpp                    = 16,
 263         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 264         .default_lcdcon2                = AT91SAM9263_DEFAULT_LCDCON2,
 265         .default_monspecs               = &at91fb_default_monspecs,
 266         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 267         .guard_time                     = 1,
 268         .lcd_wiring_mode                = ATMEL_LCDC_WIRING_RGB555,
 269 };
 270
 271 #else
 272 static struct atmel_lcdfb_info __initdata neocore926_lcdc_data;
 273 #endif
 274
 275
 276 /*
 277  * GPIO Buttons
 278  */
 279 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 280 static struct gpio_keys_button neocore926_buttons[] = {
 281         {       /* BP1, "leftclic" */
 282                 .code           = BTN_LEFT,
 283                 .gpio           = AT91_PIN_PC5,
 284                 .active_low     = 1,
 285                 .desc           = "left_click",
 286                 .wakeup         = 1,
 287         },
 288         {       /* BP2, "rightclic" */
 289                 .code           = BTN_RIGHT,
 290                 .gpio           = AT91_PIN_PC4,
 291                 .active_low     = 1,
 292                 .desc           = "right_click",
 293                 .wakeup         = 1,
 294         },
 295 };
 296
 297 static struct gpio_keys_platform_data neocore926_button_data = {
 298         .buttons        = neocore926_buttons,
 299         .nbuttons       = ARRAY_SIZE(neocore926_buttons),
 300 };
 301
 302 static struct platform_device neocore926_button_device = {
 303         .name           = "gpio-keys",
 304         .id             = -1,
 305         .num_resources  = 0,
 306         .dev            = {
 307                 .platform_data  = &neocore926_button_data,
 308         }
 309 };
 310
 311 static void __init neocore926_add_device_buttons(void)
 312 {
 313         at91_set_GPIO_periph(AT91_PIN_PC5, 0);  /* left button */
 314         at91_set_deglitch(AT91_PIN_PC5, 1);
 315         at91_set_GPIO_periph(AT91_PIN_PC4, 0);  /* right button */
 316         at91_set_deglitch(AT91_PIN_PC4, 1);
 317
 318         platform_device_register(&neocore926_button_device);
 319 }
 320 #else
 321 static void __init neocore926_add_device_buttons(void) {}
 322 #endif
 323
 324
 325 /*
 326  * AC97
 327  */
 328 static struct ac97c_platform_data neocore926_ac97_data = {
 329         .reset_pin      = AT91_PIN_PA13,
 330 };
 331
 332
 333 static void __init neocore926_board_init(void)
 334 {
 335         /* Serial */
 336         /* DBGU on ttyS0. (Rx & Tx only) */
 337         at91_register_uart(0, 0, 0);
 338
 339         /* USART0 on ttyS1. (Rx, Tx, RTS, CTS) */
 340         at91_register_uart(AT91SAM9263_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS);
 341         at91_add_device_serial();
 342
 343         /* USB Host */
 344         at91_add_device_usbh(&neocore926_usbh_data);
 345
 346         /* USB Device */
 347         at91_add_device_udc(&neocore926_udc_data);
 348
 349         /* SPI */
 350         at91_set_gpio_output(AT91_PIN_PE20, 1);         /* select spi0 clock */
 351         at91_add_device_spi(neocore926_spi_devices, ARRAY_SIZE(neocore926_spi_devices));
 352
 353         /* Touchscreen */
 354         neocore926_add_device_ts();
 355
 356         /* MMC */
 357         at91_add_device_mmc(1, &neocore926_mmc_data);
 358
 359         /* Ethernet */
 360         at91_add_device_eth(&neocore926_macb_data);
 361
 362         /* NAND */
 363         neocore926_add_device_nand();
 364
 365         /* I2C */
 366         at91_add_device_i2c(NULL, 0);
 367
 368         /* LCD Controller */
 369         at91_add_device_lcdc(&neocore926_lcdc_data);
 370
 371         /* Push Buttons */
 372         neocore926_add_device_buttons();
 373
 374         /* AC97 */
 375         at91_add_device_ac97(&neocore926_ac97_data);
 376 }
 377
 378 MACHINE_START(NEOCORE926, "ADENEO NEOCORE 926")
 379         /* Maintainer: ADENEO */
 380         .timer          = &at91sam926x_timer,
 381         .map_io         = at91_map_io,
 382         .handle_irq     = at91_aic_handle_irq,
 383         .init_early     = neocore926_init_early,
 384         .init_irq       = at91_init_irq_default,
 385         .init_machine   = neocore926_board_init,
 386 MACHINE_END