arch/arm/mach-at91/board-sam9261ek.c

   1 /*
   2  * linux/arch/arm/mach-at91/board-sam9261ek.c
   3  *
   4  *  Copyright (C) 2005 SAN People
   5  *  Copyright (C) 2006 Atmel
   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/dm9000.h>
  30 #include <linux/fb.h>
  31
  32 #include <video/atmel_lcdc.h>
  33
  34 #include <asm/hardware.h>
  35 #include <asm/setup.h>
  36 #include <asm/mach-types.h>
  37 #include <asm/irq.h>
  38
  39 #include <asm/mach/arch.h>
  40 #include <asm/mach/map.h>
  41 #include <asm/mach/irq.h>
  42
  43 #include <asm/arch/board.h>
  44 #include <asm/arch/gpio.h>
  45 #include <asm/arch/at91sam926x_mc.h>
  46
  47 #include "generic.h"
  48
  49
  50 /*
  51  * Serial port configuration.
  52  *    0 .. 2 = USART0 .. USART2
  53  *    3      = DBGU
  54  */
  55 static struct at91_uart_config __initdata ek_uart_config = {
  56         .console_tty    = 0,                            /* ttyS0 */
  57         .nr_tty         = 1,
  58         .tty_map        = { 3, -1, -1, -1 }             /* ttyS0, ..., ttyS3 */
  59 };
  60
  61 static void __init ek_map_io(void)
  62 {
  63         /* Initialize processor: 18.432 MHz crystal */
  64         at91sam9261_initialize(18432000);
  65
  66         /* Setup the LEDs */
  67         at91_init_leds(AT91_PIN_PA13, AT91_PIN_PA14);
  68
  69         /* Setup the serial ports and console */
  70         at91_init_serial(&ek_uart_config);
  71 }
  72
  73 static void __init ek_init_irq(void)
  74 {
  75         at91sam9261_init_interrupts(NULL);
  76 }
  77
  78
  79 /*
  80  * DM9000 ethernet device
  81  */
  82 #if defined(CONFIG_DM9000)
  83 static struct resource at91sam9261_dm9000_resource[] = {
  84         [0] = {
  85                 .start  = AT91_CHIPSELECT_2,
  86                 .end    = AT91_CHIPSELECT_2 + 3,
  87                 .flags  = IORESOURCE_MEM
  88         },
  89         [1] = {
  90                 .start  = AT91_CHIPSELECT_2 + 0x44,
  91                 .end    = AT91_CHIPSELECT_2 + 0xFF,
  92                 .flags  = IORESOURCE_MEM
  93         },
  94         [2] = {
  95                 .start  = AT91_PIN_PC11,
  96                 .end    = AT91_PIN_PC11,
  97                 .flags  = IORESOURCE_IRQ
  98         }
  99 };
 100
 101 static struct dm9000_plat_data dm9000_platdata = {
 102         .flags          = DM9000_PLATF_16BITONLY,
 103 };
 104
 105 static struct platform_device at91sam9261_dm9000_device = {
 106         .name           = "dm9000",
 107         .id             = 0,
 108         .num_resources  = ARRAY_SIZE(at91sam9261_dm9000_resource),
 109         .resource       = at91sam9261_dm9000_resource,
 110         .dev            = {
 111                 .platform_data  = &dm9000_platdata,
 112         }
 113 };
 114
 115 static void __init ek_add_device_dm9000(void)
 116 {
 117         /*
 118          * Configure Chip-Select 2 on SMC for the DM9000.
 119          * Note: These timings were calculated for MASTER_CLOCK = 100000000
 120          *  according to the DM9000 timings.
 121          */
 122         at91_sys_write(AT91_SMC_SETUP(2), AT91_SMC_NWESETUP_(2) | AT91_SMC_NCS_WRSETUP_(0) | AT91_SMC_NRDSETUP_(2) | AT91_SMC_NCS_RDSETUP_(0));
 123         at91_sys_write(AT91_SMC_PULSE(2), AT91_SMC_NWEPULSE_(4) | AT91_SMC_NCS_WRPULSE_(8) | AT91_SMC_NRDPULSE_(4) | AT91_SMC_NCS_RDPULSE_(8));
 124         at91_sys_write(AT91_SMC_CYCLE(2), AT91_SMC_NWECYCLE_(16) | AT91_SMC_NRDCYCLE_(16));
 125         at91_sys_write(AT91_SMC_MODE(2), AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16 | AT91_SMC_TDF_(1));
 126
 127         /* Configure Reset signal as output */
 128         at91_set_gpio_output(AT91_PIN_PC10, 0);
 129
 130         /* Configure Interrupt pin as input, no pull-up */
 131         at91_set_gpio_input(AT91_PIN_PC11, 0);
 132
 133         platform_device_register(&at91sam9261_dm9000_device);
 134 }
 135 #else
 136 static void __init ek_add_device_dm9000(void) {}
 137 #endif /* CONFIG_DM9000 */
 138
 139
 140 /*
 141  * USB Host Port
 142  */
 143 static struct at91_usbh_data __initdata ek_usbh_data = {
 144         .ports          = 2,
 145 };
 146
 147
 148 /*
 149  * USB Device Port
 150  */
 151 static struct at91_udc_data __initdata ek_udc_data = {
 152         .vbus_pin       = AT91_PIN_PB29,
 153         .pullup_pin     = 0,            /* pull-up driven by UDC */
 154 };
 155
 156
 157 /*
 158  * MCI (SD/MMC)
 159  */
 160 static struct at91_mmc_data __initdata ek_mmc_data = {
 161         .wire4          = 1,
 162 //      .det_pin        = ... not connected
 163 //      .wp_pin         = ... not connected
 164 //      .vcc_pin        = ... not connected
 165 };
 166
 167
 168 /*
 169  * NAND flash
 170  */
 171 static struct mtd_partition __initdata ek_nand_partition[] = {
 172         {
 173                 .name   = "Partition 1",
 174                 .offset = 0,
 175                 .size   = 256 * 1024,
 176         },
 177         {
 178                 .name   = "Partition 2",
 179                 .offset = 256 * 1024 ,
 180                 .size   = MTDPART_SIZ_FULL,
 181         },
 182 };
 183
 184 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 185 {
 186         *num_partitions = ARRAY_SIZE(ek_nand_partition);
 187         return ek_nand_partition;
 188 }
 189
 190 static struct at91_nand_data __initdata ek_nand_data = {
 191         .ale            = 22,
 192         .cle            = 21,
 193 //      .det_pin        = ... not connected
 194         .rdy_pin        = AT91_PIN_PC15,
 195         .enable_pin     = AT91_PIN_PC14,
 196         .partition_info = nand_partitions,
 197 #if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
 198         .bus_width_16   = 1,
 199 #else
 200         .bus_width_16   = 0,
 201 #endif
 202 };
 203
 204 /*
 205  * ADS7846 Touchscreen
 206  */
 207 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 208
 209 static int ads7843_pendown_state(void)
 210 {
 211         return !at91_get_gpio_value(AT91_PIN_PC2);      /* Touchscreen PENIRQ */
 212 }
 213
 214 static struct ads7846_platform_data ads_info = {
 215         .model                  = 7843,
 216         .x_min                  = 150,
 217         .x_max                  = 3830,
 218         .y_min                  = 190,
 219         .y_max                  = 3830,
 220         .vref_delay_usecs       = 100,
 221         .x_plate_ohms           = 450,
 222         .y_plate_ohms           = 250,
 223         .pressure_max           = 15000,
 224         .debounce_max           = 1,
 225         .debounce_rep           = 0,
 226         .debounce_tol           = (~0),
 227         .get_pendown_state      = ads7843_pendown_state,
 228 };
 229
 230 static void __init ek_add_device_ts(void)
 231 {
 232         at91_set_B_periph(AT91_PIN_PC2, 1);     /* External IRQ0, with pullup */
 233         at91_set_gpio_input(AT91_PIN_PA11, 1);  /* Touchscreen BUSY signal */
 234 }
 235 #else
 236 static void __init ek_add_device_ts(void) {}
 237 #endif
 238
 239 /*
 240  * SPI devices
 241  */
 242 static struct spi_board_info ek_spi_devices[] = {
 243         {       /* DataFlash chip */
 244                 .modalias       = "mtd_dataflash",
 245                 .chip_select    = 0,
 246                 .max_speed_hz   = 15 * 1000 * 1000,
 247                 .bus_num        = 0,
 248         },
 249 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 250         {
 251                 .modalias       = "ads7846",
 252                 .chip_select    = 2,
 253                 .max_speed_hz   = 125000 * 26,  /* (max sample rate @ 3V) * (cmd + data + overhead) */
 254                 .bus_num        = 0,
 255                 .platform_data  = &ads_info,
 256                 .irq            = AT91SAM9261_ID_IRQ0,
 257         },
 258 #endif
 259 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 260         {       /* DataFlash card - jumper (J12) configurable to CS3 or CS0 */
 261                 .modalias       = "mtd_dataflash",
 262                 .chip_select    = 3,
 263                 .max_speed_hz   = 15 * 1000 * 1000,
 264                 .bus_num        = 0,
 265         },
 266 #elif defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
 267         {       /* AT73C213 DAC */
 268                 .modalias       = "at73c213",
 269                 .chip_select    = 3,
 270                 .max_speed_hz   = 10 * 1000 * 1000,
 271                 .bus_num        = 0,
 272         },
 273 #endif
 274 };
 275
 276
 277 /*
 278  * LCD Controller
 279  */
 280 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 281 static struct fb_videomode at91_tft_vga_modes[] = {
 282         {
 283                 .name           = "TX09D50VM1CCA @ 60",
 284                 .refresh        = 60,
 285                 .xres           = 240,          .yres           = 320,
 286                 .pixclock       = KHZ2PICOS(4965),
 287
 288                 .left_margin    = 1,            .right_margin   = 33,
 289                 .upper_margin   = 1,            .lower_margin   = 0,
 290                 .hsync_len      = 5,            .vsync_len      = 1,
 291
 292                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 293                 .vmode          = FB_VMODE_NONINTERLACED,
 294         },
 295 };
 296
 297 static struct fb_monspecs at91fb_default_monspecs = {
 298         .manufacturer   = "HIT",
 299         .monitor        = "TX09D50VM1CCA",
 300
 301         .modedb         = at91_tft_vga_modes,
 302         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 303         .hfmin          = 15000,
 304         .hfmax          = 64000,
 305         .vfmin          = 50,
 306         .vfmax          = 150,
 307 };
 308
 309 #define AT91SAM9261_DEFAULT_LCDCON2     (ATMEL_LCDC_MEMOR_LITTLE \
 310                                         | ATMEL_LCDC_DISTYPE_TFT    \
 311                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 312
 313 static void at91_lcdc_power_control(int on)
 314 {
 315         if (on)
 316                 at91_set_gpio_value(AT91_PIN_PA12, 0);  /* power up */
 317         else
 318                 at91_set_gpio_value(AT91_PIN_PA12, 1);  /* power down */
 319 }
 320
 321 /* Driver datas */
 322 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 323         .default_bpp                    = 16,
 324         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 325         .default_lcdcon2                = AT91SAM9261_DEFAULT_LCDCON2,
 326         .default_monspecs               = &at91fb_default_monspecs,
 327         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 328         .guard_time                     = 1,
 329 };
 330
 331 #else
 332 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 333 #endif
 334
 335
 336 static void __init ek_board_init(void)
 337 {
 338         /* Serial */
 339         at91_add_device_serial();
 340         /* USB Host */
 341         at91_add_device_usbh(&ek_usbh_data);
 342         /* USB Device */
 343         at91_add_device_udc(&ek_udc_data);
 344         /* I2C */
 345         at91_add_device_i2c();
 346         /* NAND */
 347         at91_add_device_nand(&ek_nand_data);
 348         /* DM9000 ethernet */
 349         ek_add_device_dm9000();
 350
 351         /* spi0 and mmc/sd share the same PIO pins */
 352 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
 353         /* SPI */
 354         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 355         /* Touchscreen */
 356         ek_add_device_ts();
 357 #else
 358         /* MMC */
 359         at91_add_device_mmc(0, &ek_mmc_data);
 360 #endif
 361         /* LCD Controller */
 362         at91_add_device_lcdc(&ek_lcdc_data);
 363 }
 364
 365 MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK")
 366         /* Maintainer: Atmel */
 367         .phys_io        = AT91_BASE_SYS,
 368         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 369         .boot_params    = AT91_SDRAM_BASE + 0x100,
 370         .timer          = &at91sam926x_timer,
 371         .map_io         = ek_map_io,
 372         .init_irq       = ek_init_irq,
 373         .init_machine   = ek_board_init,
 374 MACHINE_END