arch/arm/mach-at91/board-sam9263ek.c

   1 /*
   2  * linux/arch/arm/mach-at91/board-sam9263ek.c
   3  *
   4  *  Copyright (C) 2005 SAN People
   5  *  Copyright (C) 2007 Atmel Corporation.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #include <linux/types.h>
  23 #include <linux/init.h>
  24 #include <linux/mm.h>
  25 #include <linux/module.h>
  26 #include <linux/platform_device.h>
  27 #include <linux/spi/spi.h>
  28 #include <linux/spi/ads7846.h>
  29 #include <linux/fb.h>
  30
  31 #include <video/atmel_lcdc.h>
  32
  33 #include <asm/hardware.h>
  34 #include <asm/setup.h>
  35 #include <asm/mach-types.h>
  36 #include <asm/irq.h>
  37
  38 #include <asm/mach/arch.h>
  39 #include <asm/mach/map.h>
  40 #include <asm/mach/irq.h>
  41
  42 #include <asm/arch/board.h>
  43 #include <asm/arch/gpio.h>
  44 #include <asm/arch/at91sam926x_mc.h>
  45
  46 #include "generic.h"
  47
  48
  49 /*
  50  * Serial port configuration.
  51  *    0 .. 2 = USART0 .. USART2
  52  *    3      = DBGU
  53  */
  54 static struct at91_uart_config __initdata ek_uart_config = {
  55         .console_tty    = 0,                            /* ttyS0 */
  56         .nr_tty         = 2,
  57         .tty_map        = { 3, 0, -1, -1, }             /* ttyS0, ..., ttyS3 */
  58 };
  59
  60 static void __init ek_map_io(void)
  61 {
  62         /* Initialize processor: 16.367 MHz crystal */
  63         at91sam9263_initialize(16367660);
  64
  65         /* Setup the serial ports and console */
  66         at91_init_serial(&ek_uart_config);
  67 }
  68
  69 static void __init ek_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 ek_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 ek_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 ek_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_PA31, 1);  /* Touchscreen BUSY signal */
 121 }
 122 #else
 123 static void __init ek_add_device_ts(void) {}
 124 #endif
 125
 126 /*
 127  * SPI devices.
 128  */
 129 static struct spi_board_info ek_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    = 3,
 142                 .max_speed_hz   = 125000 * 26,  /* (max sample rate @ 3V) * (cmd + data + overhead) */
 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 ek_mmc_data = {
 155         .wire4          = 1,
 156         .det_pin        = AT91_PIN_PE18,
 157         .wp_pin         = AT91_PIN_PE19,
 158 //      .vcc_pin        = ... not connected
 159 };
 160
 161
 162 /*
 163  * MACB Ethernet device
 164  */
 165 static struct at91_eth_data __initdata ek_macb_data = {
 166         .phy_irq_pin    = AT91_PIN_PE31,
 167         .is_rmii        = 1,
 168 };
 169
 170
 171 /*
 172  * NAND flash
 173  */
 174 static struct mtd_partition __initdata ek_nand_partition[] = {
 175         {
 176                 .name   = "Partition 1",
 177                 .offset = 0,
 178                 .size   = 64 * 1024 * 1024,
 179         },
 180         {
 181                 .name   = "Partition 2",
 182                 .offset = 64 * 1024 * 1024,
 183                 .size   = MTDPART_SIZ_FULL,
 184         },
 185 };
 186
 187 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 188 {
 189         *num_partitions = ARRAY_SIZE(ek_nand_partition);
 190         return ek_nand_partition;
 191 }
 192
 193 static struct at91_nand_data __initdata ek_nand_data = {
 194         .ale            = 21,
 195         .cle            = 22,
 196 //      .det_pin        = ... not connected
 197         .rdy_pin        = AT91_PIN_PA22,
 198         .enable_pin     = AT91_PIN_PD15,
 199         .partition_info = nand_partitions,
 200 #if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
 201         .bus_width_16   = 1,
 202 #else
 203         .bus_width_16   = 0,
 204 #endif
 205 };
 206
 207
 208 /*
 209  * LCD Controller
 210  */
 211 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 212 static struct fb_videomode at91_tft_vga_modes[] = {
 213         {
 214                 .name           = "TX09D50VM1CCA @ 60",
 215                 .refresh        = 60,
 216                 .xres           = 240,          .yres           = 320,
 217                 .pixclock       = KHZ2PICOS(4965),
 218
 219                 .left_margin    = 1,            .right_margin   = 33,
 220                 .upper_margin   = 1,            .lower_margin   = 0,
 221                 .hsync_len      = 5,            .vsync_len      = 1,
 222
 223                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 224                 .vmode          = FB_VMODE_NONINTERLACED,
 225         },
 226 };
 227
 228 static struct fb_monspecs at91fb_default_monspecs = {
 229         .manufacturer   = "HIT",
 230         .monitor        = "TX09D70VM1CCA",
 231
 232         .modedb         = at91_tft_vga_modes,
 233         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 234         .hfmin          = 15000,
 235         .hfmax          = 64000,
 236         .vfmin          = 50,
 237         .vfmax          = 150,
 238 };
 239
 240 #define AT91SAM9263_DEFAULT_LCDCON2     (ATMEL_LCDC_MEMOR_LITTLE \
 241                                         | ATMEL_LCDC_DISTYPE_TFT    \
 242                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 243
 244 static void at91_lcdc_power_control(int on)
 245 {
 246         if (on)
 247                 at91_set_gpio_value(AT91_PIN_PD12, 0);  /* power up */
 248         else
 249                 at91_set_gpio_value(AT91_PIN_PD12, 1);  /* power down */
 250 }
 251
 252 /* Driver datas */
 253 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 254         .default_bpp                    = 16,
 255         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 256         .default_lcdcon2                = AT91SAM9263_DEFAULT_LCDCON2,
 257         .default_monspecs               = &at91fb_default_monspecs,
 258         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 259         .guard_time                     = 1,
 260 };
 261
 262 #else
 263 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 264 #endif
 265
 266
 267 /*
 268  * AC97
 269  */
 270 static struct atmel_ac97_data ek_ac97_data = {
 271         .reset_pin      = AT91_PIN_PA13,
 272 };
 273
 274
 275 /*
 276  * LEDs ... these could all be PWM-driven, for variable brightness
 277  */
 278 static struct gpio_led ek_leds[] = {
 279         {       /* "left" led, green, userled1, pwm1 */
 280                 .name                   = "ds1",
 281                 .gpio                   = AT91_PIN_PB8,
 282                 .active_low             = 1,
 283                 .default_trigger        = "mmc0",
 284         },
 285         {       /* "right" led, green, userled2, pwm2 */
 286                 .name                   = "ds2",
 287                 .gpio                   = AT91_PIN_PC29,
 288                 .active_low             = 1,
 289                 .default_trigger        = "nand-disk",
 290         },
 291         {       /* "power" led, yellow, pwm0 */
 292                 .name                   = "ds3",
 293                 .gpio                   = AT91_PIN_PB7,
 294                 .default_trigger        = "heartbeat",
 295         },
 296 };
 297
 298
 299 static void __init ek_board_init(void)
 300 {
 301         /* Serial */
 302         at91_add_device_serial();
 303         /* USB Host */
 304         at91_add_device_usbh(&ek_usbh_data);
 305         /* USB Device */
 306         at91_add_device_udc(&ek_udc_data);
 307         /* SPI */
 308         at91_set_gpio_output(AT91_PIN_PE20, 1);         /* select spi0 clock */
 309         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 310         /* Touchscreen */
 311         ek_add_device_ts();
 312         /* MMC */
 313         at91_add_device_mmc(1, &ek_mmc_data);
 314         /* Ethernet */
 315         at91_add_device_eth(&ek_macb_data);
 316         /* NAND */
 317         at91_add_device_nand(&ek_nand_data);
 318         /* I2C */
 319         at91_add_device_i2c(NULL, 0);
 320         /* LCD Controller */
 321         at91_add_device_lcdc(&ek_lcdc_data);
 322         /* AC97 */
 323         at91_add_device_ac97(&ek_ac97_data);
 324         /* LEDs */
 325         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 326 }
 327
 328 MACHINE_START(AT91SAM9263EK, "Atmel AT91SAM9263-EK")
 329         /* Maintainer: Atmel */
 330         .phys_io        = AT91_BASE_SYS,
 331         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 332         .boot_params    = AT91_SDRAM_BASE + 0x100,
 333         .timer          = &at91sam926x_timer,
 334         .map_io         = ek_map_io,
 335         .init_irq       = ek_init_irq,
 336         .init_machine   = ek_board_init,
 337 MACHINE_END