arch/arm/mach-at91/board-cap9adk.c

   1 /*
   2  * linux/arch/arm/mach-at91/board-cap9adk.c
   3  *
   4  *  Copyright (C) 2007 Stelian Pop <stelian.pop@leadtechdesign.com>
   5  *  Copyright (C) 2007 Lead Tech Design <www.leadtechdesign.com>
   6  *  Copyright (C) 2005 SAN People
   7  *  Copyright (C) 2007 Atmel Corporation.
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  22  */
  23
  24 #include <linux/types.h>
  25 #include <linux/gpio.h>
  26 #include <linux/init.h>
  27 #include <linux/mm.h>
  28 #include <linux/module.h>
  29 #include <linux/platform_device.h>
  30 #include <linux/spi/spi.h>
  31 #include <linux/spi/ads7846.h>
  32 #include <linux/fb.h>
  33 #include <linux/mtd/physmap.h>
  34
  35 #include <video/atmel_lcdc.h>
  36
  37 #include <mach/hardware.h>
  38 #include <asm/setup.h>
  39 #include <asm/mach-types.h>
  40
  41 #include <asm/mach/arch.h>
  42 #include <asm/mach/map.h>
  43
  44 #include <mach/board.h>
  45 #include <mach/at91cap9_matrix.h>
  46 #include <mach/at91sam9_smc.h>
  47 #include <mach/system_rev.h>
  48
  49 #include "sam9_smc.h"
  50 #include "generic.h"
  51
  52
  53 static void __init cap9adk_init_early(void)
  54 {
  55         /* Initialize processor: 12 MHz crystal */
  56         at91_initialize(12000000);
  57
  58         /* Setup the LEDs: USER1 and USER2 LED for cpu/timer... */
  59         at91_init_leds(AT91_PIN_PA10, AT91_PIN_PA11);
  60         /* ... POWER LED always on */
  61         at91_set_gpio_output(AT91_PIN_PC29, 1);
  62
  63         /* Setup the serial ports and console */
  64         at91_register_uart(0, 0, 0);            /* DBGU = ttyS0 */
  65         at91_set_serial_console(0);
  66 }
  67
  68 /*
  69  * USB Host port
  70  */
  71 static struct at91_usbh_data __initdata cap9adk_usbh_data = {
  72         .ports          = 2,
  73         .vbus_pin       = {-EINVAL, -EINVAL},
  74         .overcurrent_pin= {-EINVAL, -EINVAL},
  75 };
  76
  77 /*
  78  * USB HS Device port
  79  */
  80 static struct usba_platform_data __initdata cap9adk_usba_udc_data = {
  81         .vbus_pin       = AT91_PIN_PB31,
  82 };
  83
  84 /*
  85  * ADS7846 Touchscreen
  86  */
  87 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
  88 static int ads7843_pendown_state(void)
  89 {
  90         return !at91_get_gpio_value(AT91_PIN_PC4);      /* Touchscreen PENIRQ */
  91 }
  92
  93 static struct ads7846_platform_data ads_info = {
  94         .model                  = 7843,
  95         .x_min                  = 150,
  96         .x_max                  = 3830,
  97         .y_min                  = 190,
  98         .y_max                  = 3830,
  99         .vref_delay_usecs       = 100,
 100         .x_plate_ohms           = 450,
 101         .y_plate_ohms           = 250,
 102         .pressure_max           = 15000,
 103         .debounce_max           = 1,
 104         .debounce_rep           = 0,
 105         .debounce_tol           = (~0),
 106         .get_pendown_state      = ads7843_pendown_state,
 107 };
 108
 109 static void __init cap9adk_add_device_ts(void)
 110 {
 111         at91_set_gpio_input(AT91_PIN_PC4, 1);   /* Touchscreen PENIRQ */
 112         at91_set_gpio_input(AT91_PIN_PC5, 1);   /* Touchscreen BUSY */
 113 }
 114 #else
 115 static void __init cap9adk_add_device_ts(void) {}
 116 #endif
 117
 118
 119 /*
 120  * SPI devices.
 121  */
 122 static struct spi_board_info cap9adk_spi_devices[] = {
 123 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 124         {       /* DataFlash card */
 125                 .modalias       = "mtd_dataflash",
 126                 .chip_select    = 0,
 127                 .max_speed_hz   = 15 * 1000 * 1000,
 128                 .bus_num        = 0,
 129         },
 130 #endif
 131 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 132         {
 133                 .modalias       = "ads7846",
 134                 .chip_select    = 3,            /* can be 2 or 3, depending on J2 jumper */
 135                 .max_speed_hz   = 125000 * 26,  /* (max sample rate @ 3V) * (cmd + data + overhead) */
 136                 .bus_num        = 0,
 137                 .platform_data  = &ads_info,
 138                 .irq            = AT91_PIN_PC4,
 139         },
 140 #endif
 141 };
 142
 143
 144 /*
 145  * MCI (SD/MMC)
 146  */
 147 static struct at91_mmc_data __initdata cap9adk_mmc_data = {
 148         .wire4          = 1,
 149         .det_pin        = -EINVAL,
 150         .wp_pin         = -EINVAL,
 151         .vcc_pin        = -EINVAL,
 152 };
 153
 154
 155 /*
 156  * MACB Ethernet device
 157  */
 158 static struct macb_platform_data __initdata cap9adk_macb_data = {
 159         .phy_irq_pin    = -EINVAL,
 160         .is_rmii        = 1,
 161 };
 162
 163
 164 /*
 165  * NAND flash
 166  */
 167 static struct mtd_partition __initdata cap9adk_nand_partitions[] = {
 168         {
 169                 .name   = "NAND partition",
 170                 .offset = 0,
 171                 .size   = MTDPART_SIZ_FULL,
 172         },
 173 };
 174
 175 static struct atmel_nand_data __initdata cap9adk_nand_data = {
 176         .ale            = 21,
 177         .cle            = 22,
 178         .det_pin        = -EINVAL,
 179         .rdy_pin        = -EINVAL,
 180         .enable_pin     = AT91_PIN_PD15,
 181         .parts          = cap9adk_nand_partitions,
 182         .num_parts      = ARRAY_SIZE(cap9adk_nand_partitions),
 183 };
 184
 185 static struct sam9_smc_config __initdata cap9adk_nand_smc_config = {
 186         .ncs_read_setup         = 1,
 187         .nrd_setup              = 2,
 188         .ncs_write_setup        = 1,
 189         .nwe_setup              = 2,
 190
 191         .ncs_read_pulse         = 6,
 192         .nrd_pulse              = 4,
 193         .ncs_write_pulse        = 6,
 194         .nwe_pulse              = 4,
 195
 196         .read_cycle             = 8,
 197         .write_cycle            = 8,
 198
 199         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
 200         .tdf_cycles             = 1,
 201 };
 202
 203 static void __init cap9adk_add_device_nand(void)
 204 {
 205         unsigned long csa;
 206
 207         csa = at91_sys_read(AT91_MATRIX_EBICSA);
 208         at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_VDDIOMSEL_3_3V);
 209
 210         cap9adk_nand_data.bus_width_16 = board_have_nand_16bit();
 211         /* setup bus-width (8 or 16) */
 212         if (cap9adk_nand_data.bus_width_16)
 213                 cap9adk_nand_smc_config.mode |= AT91_SMC_DBW_16;
 214         else
 215                 cap9adk_nand_smc_config.mode |= AT91_SMC_DBW_8;
 216
 217         /* configure chip-select 3 (NAND) */
 218         sam9_smc_configure(0, 3, &cap9adk_nand_smc_config);
 219
 220         at91_add_device_nand(&cap9adk_nand_data);
 221 }
 222
 223
 224 /*
 225  * NOR flash
 226  */
 227 static struct mtd_partition cap9adk_nor_partitions[] = {
 228         {
 229                 .name           = "NOR partition",
 230                 .offset         = 0,
 231                 .size           = MTDPART_SIZ_FULL,
 232         },
 233 };
 234
 235 static struct physmap_flash_data cap9adk_nor_data = {
 236         .width          = 2,
 237         .parts          = cap9adk_nor_partitions,
 238         .nr_parts       = ARRAY_SIZE(cap9adk_nor_partitions),
 239 };
 240
 241 #define NOR_BASE        AT91_CHIPSELECT_0
 242 #define NOR_SIZE        SZ_8M
 243
 244 static struct resource nor_flash_resources[] = {
 245         {
 246                 .start  = NOR_BASE,
 247                 .end    = NOR_BASE + NOR_SIZE - 1,
 248                 .flags  = IORESOURCE_MEM,
 249         }
 250 };
 251
 252 static struct platform_device cap9adk_nor_flash = {
 253         .name           = "physmap-flash",
 254         .id             = 0,
 255         .dev            = {
 256                                 .platform_data  = &cap9adk_nor_data,
 257         },
 258         .resource       = nor_flash_resources,
 259         .num_resources  = ARRAY_SIZE(nor_flash_resources),
 260 };
 261
 262 static struct sam9_smc_config __initdata cap9adk_nor_smc_config = {
 263         .ncs_read_setup         = 2,
 264         .nrd_setup              = 4,
 265         .ncs_write_setup        = 2,
 266         .nwe_setup              = 4,
 267
 268         .ncs_read_pulse         = 10,
 269         .nrd_pulse              = 8,
 270         .ncs_write_pulse        = 10,
 271         .nwe_pulse              = 8,
 272
 273         .read_cycle             = 16,
 274         .write_cycle            = 16,
 275
 276         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16,
 277         .tdf_cycles             = 1,
 278 };
 279
 280 static __init void cap9adk_add_device_nor(void)
 281 {
 282         unsigned long csa;
 283
 284         csa = at91_sys_read(AT91_MATRIX_EBICSA);
 285         at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_VDDIOMSEL_3_3V);
 286
 287         /* configure chip-select 0 (NOR) */
 288         sam9_smc_configure(0, 0, &cap9adk_nor_smc_config);
 289
 290         platform_device_register(&cap9adk_nor_flash);
 291 }
 292
 293
 294 /*
 295  * LCD Controller
 296  */
 297 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 298 static struct fb_videomode at91_tft_vga_modes[] = {
 299         {
 300                 .name           = "TX09D50VM1CCA @ 60",
 301                 .refresh        = 60,
 302                 .xres           = 240,          .yres           = 320,
 303                 .pixclock       = KHZ2PICOS(4965),
 304
 305                 .left_margin    = 1,            .right_margin   = 33,
 306                 .upper_margin   = 1,            .lower_margin   = 0,
 307                 .hsync_len      = 5,            .vsync_len      = 1,
 308
 309                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 310                 .vmode          = FB_VMODE_NONINTERLACED,
 311         },
 312 };
 313
 314 static struct fb_monspecs at91fb_default_monspecs = {
 315         .manufacturer   = "HIT",
 316         .monitor        = "TX09D70VM1CCA",
 317
 318         .modedb         = at91_tft_vga_modes,
 319         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 320         .hfmin          = 15000,
 321         .hfmax          = 64000,
 322         .vfmin          = 50,
 323         .vfmax          = 150,
 324 };
 325
 326 #define AT91CAP9_DEFAULT_LCDCON2        (ATMEL_LCDC_MEMOR_LITTLE \
 327                                         | ATMEL_LCDC_DISTYPE_TFT    \
 328                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 329
 330 static void at91_lcdc_power_control(int on)
 331 {
 332         if (on)
 333                 at91_set_gpio_value(AT91_PIN_PC0, 0);   /* power up */
 334         else
 335                 at91_set_gpio_value(AT91_PIN_PC0, 1);   /* power down */
 336 }
 337
 338 /* Driver datas */
 339 static struct atmel_lcdfb_info __initdata cap9adk_lcdc_data = {
 340         .default_bpp                    = 16,
 341         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 342         .default_lcdcon2                = AT91CAP9_DEFAULT_LCDCON2,
 343         .default_monspecs               = &at91fb_default_monspecs,
 344         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 345         .guard_time                     = 1,
 346 };
 347
 348 #else
 349 static struct atmel_lcdfb_info __initdata cap9adk_lcdc_data;
 350 #endif
 351
 352
 353 /*
 354  * AC97
 355  */
 356 static struct ac97c_platform_data cap9adk_ac97_data = {
 357         .reset_pin      = -EINVAL,
 358 };
 359
 360
 361 static void __init cap9adk_board_init(void)
 362 {
 363         /* Serial */
 364         at91_add_device_serial();
 365         /* USB Host */
 366         at91_add_device_usbh(&cap9adk_usbh_data);
 367         /* USB HS */
 368         at91_add_device_usba(&cap9adk_usba_udc_data);
 369         /* SPI */
 370         at91_add_device_spi(cap9adk_spi_devices, ARRAY_SIZE(cap9adk_spi_devices));
 371         /* Touchscreen */
 372         cap9adk_add_device_ts();
 373         /* MMC */
 374         at91_add_device_mmc(1, &cap9adk_mmc_data);
 375         /* Ethernet */
 376         at91_add_device_eth(&cap9adk_macb_data);
 377         /* NAND */
 378         cap9adk_add_device_nand();
 379         /* NOR Flash */
 380         cap9adk_add_device_nor();
 381         /* I2C */
 382         at91_add_device_i2c(NULL, 0);
 383         /* LCD Controller */
 384         at91_add_device_lcdc(&cap9adk_lcdc_data);
 385         /* AC97 */
 386         at91_add_device_ac97(&cap9adk_ac97_data);
 387 }
 388
 389 MACHINE_START(AT91CAP9ADK, "Atmel AT91CAP9A-DK")
 390         /* Maintainer: Stelian Pop <stelian.pop@leadtechdesign.com> */
 391         .timer          = &at91sam926x_timer,
 392         .map_io         = at91_map_io,
 393         .init_early     = cap9adk_init_early,
 394         .init_irq       = at91_init_irq_default,
 395         .init_machine   = cap9adk_board_init,
 396 MACHINE_END