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