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         /* 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 /*
  70  * USB Host port
  71  */
  72 static struct at91_usbh_data __initdata neocore926_usbh_data = {
  73         .ports          = 2,
  74         .vbus_pin       = { AT91_PIN_PA24, AT91_PIN_PA21 },
  75 };
  76
  77 /*
  78  * USB Device port
  79  */
  80 static struct at91_udc_data __initdata neocore926_udc_data = {
  81         .vbus_pin       = AT91_PIN_PA25,
  82         .pullup_pin     = 0,            /* pull-up driven by UDC */
  83 };
  84
  85
  86 /*
  87  * ADS7846 Touchscreen
  88  */
  89 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
  90 static int ads7843_pendown_state(void)
  91 {
  92         return !at91_get_gpio_value(AT91_PIN_PA15);     /* Touchscreen PENIRQ */
  93 }
  94
  95 static struct ads7846_platform_data ads_info = {
  96         .model                  = 7843,
  97         .x_min                  = 150,
  98         .x_max                  = 3830,
  99         .y_min                  = 190,
 100         .y_max                  = 3830,
 101         .vref_delay_usecs       = 100,
 102         .x_plate_ohms           = 450,
 103         .y_plate_ohms           = 250,
 104         .pressure_max           = 15000,
 105         .debounce_max           = 1,
 106         .debounce_rep           = 0,
 107         .debounce_tol           = (~0),
 108         .get_pendown_state      = ads7843_pendown_state,
 109 };
 110
 111 static void __init neocore926_add_device_ts(void)
 112 {
 113         at91_set_B_periph(AT91_PIN_PA15, 1);    /* External IRQ1, with pullup */
 114         at91_set_gpio_input(AT91_PIN_PC13, 1);  /* Touchscreen BUSY signal */
 115 }
 116 #else
 117 static void __init neocore926_add_device_ts(void) {}
 118 #endif
 119
 120 /*
 121  * SPI devices.
 122  */
 123 static struct spi_board_info neocore926_spi_devices[] = {
 124 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 125         {       /* DataFlash card */
 126                 .modalias       = "mtd_dataflash",
 127                 .chip_select    = 0,
 128                 .max_speed_hz   = 15 * 1000 * 1000,
 129                 .bus_num        = 0,
 130         },
 131 #endif
 132 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 133         {
 134                 .modalias       = "ads7846",
 135                 .chip_select    = 1,
 136                 .max_speed_hz   = 125000 * 16,
 137                 .bus_num        = 0,
 138                 .platform_data  = &ads_info,
 139                 .irq            = AT91SAM9263_ID_IRQ1,
 140         },
 141 #endif
 142 };
 143
 144
 145 /*
 146  * MCI (SD/MMC)
 147  */
 148 static struct at91_mmc_data __initdata neocore926_mmc_data = {
 149         .wire4          = 1,
 150         .det_pin        = AT91_PIN_PE18,
 151         .wp_pin         = AT91_PIN_PE19,
 152 };
 153
 154
 155 /*
 156  * MACB Ethernet device
 157  */
 158 static struct at91_eth_data __initdata neocore926_macb_data = {
 159         .phy_irq_pin    = AT91_PIN_PE31,
 160         .is_rmii        = 1,
 161 };
 162
 163
 164 /*
 165  * NAND flash
 166  */
 167 static struct mtd_partition __initdata neocore926_nand_partition[] = {
 168         {
 169                 .name   = "Linux Kernel",       /* "Partition 1", */
 170                 .offset = 0,
 171                 .size   = SZ_8M,
 172         },
 173         {
 174                 .name   = "Filesystem",         /* "Partition 2", */
 175                 .offset = MTDPART_OFS_NXTBLK,
 176                 .size   = SZ_32M,
 177         },
 178         {
 179                 .name   = "Free",               /* "Partition 3", */
 180                 .offset = MTDPART_OFS_NXTBLK,
 181                 .size   = MTDPART_SIZ_FULL,
 182         },
 183 };
 184
 185 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 186 {
 187         *num_partitions = ARRAY_SIZE(neocore926_nand_partition);
 188         return neocore926_nand_partition;
 189 }
 190
 191 static struct atmel_nand_data __initdata neocore926_nand_data = {
 192         .ale                    = 21,
 193         .cle                    = 22,
 194         .rdy_pin                = AT91_PIN_PB19,
 195         .rdy_pin_active_low     = 1,
 196         .enable_pin             = AT91_PIN_PD15,
 197         .partition_info         = nand_partitions,
 198 };
 199
 200 static struct sam9_smc_config __initdata neocore926_nand_smc_config = {
 201         .ncs_read_setup         = 0,
 202         .nrd_setup              = 1,
 203         .ncs_write_setup        = 0,
 204         .nwe_setup              = 1,
 205
 206         .ncs_read_pulse         = 4,
 207         .nrd_pulse              = 4,
 208         .ncs_write_pulse        = 4,
 209         .nwe_pulse              = 4,
 210
 211         .read_cycle             = 6,
 212         .write_cycle            = 6,
 213
 214         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 215         .tdf_cycles             = 2,
 216 };
 217
 218 static void __init neocore926_add_device_nand(void)
 219 {
 220         /* configure chip-select 3 (NAND) */
 221         sam9_smc_configure(3, &neocore926_nand_smc_config);
 222
 223         at91_add_device_nand(&neocore926_nand_data);
 224 }
 225
 226
 227 /*
 228  * LCD Controller
 229  */
 230 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 231 static struct fb_videomode at91_tft_vga_modes[] = {
 232         {
 233                 .name           = "TX09D50VM1CCA @ 60",
 234                 .refresh        = 60,
 235                 .xres           = 240,          .yres           = 320,
 236                 .pixclock       = KHZ2PICOS(5000),
 237
 238                 .left_margin    = 1,            .right_margin   = 33,
 239                 .upper_margin   = 1,            .lower_margin   = 0,
 240                 .hsync_len      = 5,            .vsync_len      = 1,
 241
 242                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 243                 .vmode          = FB_VMODE_NONINTERLACED,
 244         },
 245 };
 246
 247 static struct fb_monspecs at91fb_default_monspecs = {
 248         .manufacturer   = "HIT",
 249         .monitor        = "TX09D70VM1CCA",
 250
 251         .modedb         = at91_tft_vga_modes,
 252         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 253         .hfmin          = 15000,
 254         .hfmax          = 64000,
 255         .vfmin          = 50,
 256         .vfmax          = 150,
 257 };
 258
 259 #define AT91SAM9263_DEFAULT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
 260                                         | ATMEL_LCDC_DISTYPE_TFT \
 261                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 262
 263 static void at91_lcdc_power_control(int on)
 264 {
 265         at91_set_gpio_value(AT91_PIN_PA30, on);
 266 }
 267
 268 /* Driver datas */
 269 static struct atmel_lcdfb_info __initdata neocore926_lcdc_data = {
 270         .lcdcon_is_backlight            = true,
 271         .default_bpp                    = 16,
 272         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 273         .default_lcdcon2                = AT91SAM9263_DEFAULT_LCDCON2,
 274         .default_monspecs               = &at91fb_default_monspecs,
 275         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 276         .guard_time                     = 1,
 277         .lcd_wiring_mode                = ATMEL_LCDC_WIRING_RGB555,
 278 };
 279
 280 #else
 281 static struct atmel_lcdfb_info __initdata neocore926_lcdc_data;
 282 #endif
 283
 284
 285 /*
 286  * GPIO Buttons
 287  */
 288 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 289 static struct gpio_keys_button neocore926_buttons[] = {
 290         {       /* BP1, "leftclic" */
 291                 .code           = BTN_LEFT,
 292                 .gpio           = AT91_PIN_PC5,
 293                 .active_low     = 1,
 294                 .desc           = "left_click",
 295                 .wakeup         = 1,
 296         },
 297         {       /* BP2, "rightclic" */
 298                 .code           = BTN_RIGHT,
 299                 .gpio           = AT91_PIN_PC4,
 300                 .active_low     = 1,
 301                 .desc           = "right_click",
 302                 .wakeup         = 1,
 303         },
 304 };
 305
 306 static struct gpio_keys_platform_data neocore926_button_data = {
 307         .buttons        = neocore926_buttons,
 308         .nbuttons       = ARRAY_SIZE(neocore926_buttons),
 309 };
 310
 311 static struct platform_device neocore926_button_device = {
 312         .name           = "gpio-keys",
 313         .id             = -1,
 314         .num_resources  = 0,
 315         .dev            = {
 316                 .platform_data  = &neocore926_button_data,
 317         }
 318 };
 319
 320 static void __init neocore926_add_device_buttons(void)
 321 {
 322         at91_set_GPIO_periph(AT91_PIN_PC5, 0);  /* left button */
 323         at91_set_deglitch(AT91_PIN_PC5, 1);
 324         at91_set_GPIO_periph(AT91_PIN_PC4, 0);  /* right button */
 325         at91_set_deglitch(AT91_PIN_PC4, 1);
 326
 327         platform_device_register(&neocore926_button_device);
 328 }
 329 #else
 330 static void __init neocore926_add_device_buttons(void) {}
 331 #endif
 332
 333
 334 /*
 335  * AC97
 336  */
 337 static struct ac97c_platform_data neocore926_ac97_data = {
 338         .reset_pin      = AT91_PIN_PA13,
 339 };
 340
 341
 342 static void __init neocore926_board_init(void)
 343 {
 344         /* Serial */
 345         at91_add_device_serial();
 346
 347         /* USB Host */
 348         at91_add_device_usbh(&neocore926_usbh_data);
 349
 350         /* USB Device */
 351         at91_add_device_udc(&neocore926_udc_data);
 352
 353         /* SPI */
 354         at91_set_gpio_output(AT91_PIN_PE20, 1);         /* select spi0 clock */
 355         at91_add_device_spi(neocore926_spi_devices, ARRAY_SIZE(neocore926_spi_devices));
 356
 357         /* Touchscreen */
 358         neocore926_add_device_ts();
 359
 360         /* MMC */
 361         at91_add_device_mmc(1, &neocore926_mmc_data);
 362
 363         /* Ethernet */
 364         at91_add_device_eth(&neocore926_macb_data);
 365
 366         /* NAND */
 367         neocore926_add_device_nand();
 368
 369         /* I2C */
 370         at91_add_device_i2c(NULL, 0);
 371
 372         /* LCD Controller */
 373         at91_add_device_lcdc(&neocore926_lcdc_data);
 374
 375         /* Push Buttons */
 376         neocore926_add_device_buttons();
 377
 378         /* AC97 */
 379         at91_add_device_ac97(&neocore926_ac97_data);
 380 }
 381
 382 MACHINE_START(NEOCORE926, "ADENEO NEOCORE 926")
 383         /* Maintainer: ADENEO */
 384         .timer          = &at91sam926x_timer,
 385         .map_io         = at91_map_io,
 386         .init_early     = neocore926_init_early,
 387         .init_irq       = at91_init_irq_default,
 388         .init_machine   = neocore926_board_init,
 389 MACHINE_END