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/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/mtd/physmap.h>
  33
  34 #include <video/atmel_lcdc.h>
  35
  36 #include <mach/hardware.h>
  37 #include <asm/setup.h>
  38 #include <asm/mach-types.h>
  39
  40 #include <asm/mach/arch.h>
  41 #include <asm/mach/map.h>
  42
  43 #include <mach/board.h>
  44 #include <mach/gpio.h>
  45 #include <mach/at91cap9_matrix.h>
  46 #include <mach/at91sam9_smc.h>
  47
  48 #include "sam9_smc.h"
  49 #include "generic.h"
  50
  51
  52 static void __init cap9adk_map_io(void)
  53 {
  54         /* Initialize processor: 12 MHz crystal */
  55         at91cap9_initialize(12000000);
  56
  57         /* Setup the LEDs: USER1 and USER2 LED for cpu/timer... */
  58         at91_init_leds(AT91_PIN_PA10, AT91_PIN_PA11);
  59         /* ... POWER LED always on */
  60         at91_set_gpio_output(AT91_PIN_PC29, 1);
  61
  62         /* Setup the serial ports and console */
  63         at91_register_uart(0, 0, 0);            /* DBGU = ttyS0 */
  64         at91_set_serial_console(0);
  65 }
  66
  67 static void __init cap9adk_init_irq(void)
  68 {
  69         at91cap9_init_interrupts(NULL);
  70 }
  71
  72
  73 /*
  74  * USB Host port
  75  */
  76 static struct at91_usbh_data __initdata cap9adk_usbh_data = {
  77         .ports          = 2,
  78 };
  79
  80 /*
  81  * USB HS Device port
  82  */
  83 static struct usba_platform_data __initdata cap9adk_usba_udc_data = {
  84         .vbus_pin       = AT91_PIN_PB31,
  85 };
  86
  87 /*
  88  * ADS7846 Touchscreen
  89  */
  90 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
  91 static int ads7843_pendown_state(void)
  92 {
  93         return !at91_get_gpio_value(AT91_PIN_PC4);      /* Touchscreen PENIRQ */
  94 }
  95
  96 static struct ads7846_platform_data ads_info = {
  97         .model                  = 7843,
  98         .x_min                  = 150,
  99         .x_max                  = 3830,
 100         .y_min                  = 190,
 101         .y_max                  = 3830,
 102         .vref_delay_usecs       = 100,
 103         .x_plate_ohms           = 450,
 104         .y_plate_ohms           = 250,
 105         .pressure_max           = 15000,
 106         .debounce_max           = 1,
 107         .debounce_rep           = 0,
 108         .debounce_tol           = (~0),
 109         .get_pendown_state      = ads7843_pendown_state,
 110 };
 111
 112 static void __init cap9adk_add_device_ts(void)
 113 {
 114         at91_set_gpio_input(AT91_PIN_PC4, 1);   /* Touchscreen PENIRQ */
 115         at91_set_gpio_input(AT91_PIN_PC5, 1);   /* Touchscreen BUSY */
 116 }
 117 #else
 118 static void __init cap9adk_add_device_ts(void) {}
 119 #endif
 120
 121
 122 /*
 123  * SPI devices.
 124  */
 125 static struct spi_board_info cap9adk_spi_devices[] = {
 126 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 127         {       /* DataFlash card */
 128                 .modalias       = "mtd_dataflash",
 129                 .chip_select    = 0,
 130                 .max_speed_hz   = 15 * 1000 * 1000,
 131                 .bus_num        = 0,
 132         },
 133 #endif
 134 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 135         {
 136                 .modalias       = "ads7846",
 137                 .chip_select    = 3,            /* can be 2 or 3, depending on J2 jumper */
 138                 .max_speed_hz   = 125000 * 26,  /* (max sample rate @ 3V) * (cmd + data + overhead) */
 139                 .bus_num        = 0,
 140                 .platform_data  = &ads_info,
 141                 .irq            = AT91_PIN_PC4,
 142         },
 143 #endif
 144 };
 145
 146
 147 /*
 148  * MCI (SD/MMC)
 149  */
 150 static struct at91_mmc_data __initdata cap9adk_mmc_data = {
 151         .wire4          = 1,
 152 //      .det_pin        = ... not connected
 153 //      .wp_pin         = ... not connected
 154 //      .vcc_pin        = ... not connected
 155 };
 156
 157
 158 /*
 159  * MACB Ethernet device
 160  */
 161 static struct at91_eth_data __initdata cap9adk_macb_data = {
 162         .is_rmii        = 1,
 163 };
 164
 165
 166 /*
 167  * NAND flash
 168  */
 169 static struct mtd_partition __initdata cap9adk_nand_partitions[] = {
 170         {
 171                 .name   = "NAND partition",
 172                 .offset = 0,
 173                 .size   = MTDPART_SIZ_FULL,
 174         },
 175 };
 176
 177 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 178 {
 179         *num_partitions = ARRAY_SIZE(cap9adk_nand_partitions);
 180         return cap9adk_nand_partitions;
 181 }
 182
 183 static struct atmel_nand_data __initdata cap9adk_nand_data = {
 184         .ale            = 21,
 185         .cle            = 22,
 186 //      .det_pin        = ... not connected
 187 //      .rdy_pin        = ... not connected
 188         .enable_pin     = AT91_PIN_PD15,
 189         .partition_info = nand_partitions,
 190 #if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16)
 191         .bus_width_16   = 1,
 192 #else
 193         .bus_width_16   = 0,
 194 #endif
 195 };
 196
 197 static struct sam9_smc_config __initdata cap9adk_nand_smc_config = {
 198         .ncs_read_setup         = 1,
 199         .nrd_setup              = 2,
 200         .ncs_write_setup        = 1,
 201         .nwe_setup              = 2,
 202
 203         .ncs_read_pulse         = 6,
 204         .nrd_pulse              = 4,
 205         .ncs_write_pulse        = 6,
 206         .nwe_pulse              = 4,
 207
 208         .read_cycle             = 8,
 209         .write_cycle            = 8,
 210
 211         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
 212         .tdf_cycles             = 1,
 213 };
 214
 215 static void __init cap9adk_add_device_nand(void)
 216 {
 217         unsigned long csa;
 218
 219         csa = at91_sys_read(AT91_MATRIX_EBICSA);
 220         at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_VDDIOMSEL_3_3V);
 221
 222         /* setup bus-width (8 or 16) */
 223         if (cap9adk_nand_data.bus_width_16)
 224                 cap9adk_nand_smc_config.mode |= AT91_SMC_DBW_16;
 225         else
 226                 cap9adk_nand_smc_config.mode |= AT91_SMC_DBW_8;
 227
 228         /* configure chip-select 3 (NAND) */
 229         sam9_smc_configure(3, &cap9adk_nand_smc_config);
 230
 231         at91_add_device_nand(&cap9adk_nand_data);
 232 }
 233
 234
 235 /*
 236  * NOR flash
 237  */
 238 static struct mtd_partition cap9adk_nor_partitions[] = {
 239         {
 240                 .name           = "NOR partition",
 241                 .offset         = 0,
 242                 .size           = MTDPART_SIZ_FULL,
 243         },
 244 };
 245
 246 static struct physmap_flash_data cap9adk_nor_data = {
 247         .width          = 2,
 248         .parts          = cap9adk_nor_partitions,
 249         .nr_parts       = ARRAY_SIZE(cap9adk_nor_partitions),
 250 };
 251
 252 #define NOR_BASE        AT91_CHIPSELECT_0
 253 #define NOR_SIZE        SZ_8M
 254
 255 static struct resource nor_flash_resources[] = {
 256         {
 257                 .start  = NOR_BASE,
 258                 .end    = NOR_BASE + NOR_SIZE - 1,
 259                 .flags  = IORESOURCE_MEM,
 260         }
 261 };
 262
 263 static struct platform_device cap9adk_nor_flash = {
 264         .name           = "physmap-flash",
 265         .id             = 0,
 266         .dev            = {
 267                                 .platform_data  = &cap9adk_nor_data,
 268         },
 269         .resource       = nor_flash_resources,
 270         .num_resources  = ARRAY_SIZE(nor_flash_resources),
 271 };
 272
 273 static struct sam9_smc_config __initdata cap9adk_nor_smc_config = {
 274         .ncs_read_setup         = 2,
 275         .nrd_setup              = 4,
 276         .ncs_write_setup        = 2,
 277         .nwe_setup              = 4,
 278
 279         .ncs_read_pulse         = 10,
 280         .nrd_pulse              = 8,
 281         .ncs_write_pulse        = 10,
 282         .nwe_pulse              = 8,
 283
 284         .read_cycle             = 16,
 285         .write_cycle            = 16,
 286
 287         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16,
 288         .tdf_cycles             = 1,
 289 };
 290
 291 static __init void cap9adk_add_device_nor(void)
 292 {
 293         unsigned long csa;
 294
 295         csa = at91_sys_read(AT91_MATRIX_EBICSA);
 296         at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_VDDIOMSEL_3_3V);
 297
 298         /* configure chip-select 0 (NOR) */
 299         sam9_smc_configure(0, &cap9adk_nor_smc_config);
 300
 301         platform_device_register(&cap9adk_nor_flash);
 302 }
 303
 304
 305 /*
 306  * LCD Controller
 307  */
 308 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 309 static struct fb_videomode at91_tft_vga_modes[] = {
 310         {
 311                 .name           = "TX09D50VM1CCA @ 60",
 312                 .refresh        = 60,
 313                 .xres           = 240,          .yres           = 320,
 314                 .pixclock       = KHZ2PICOS(4965),
 315
 316                 .left_margin    = 1,            .right_margin   = 33,
 317                 .upper_margin   = 1,            .lower_margin   = 0,
 318                 .hsync_len      = 5,            .vsync_len      = 1,
 319
 320                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 321                 .vmode          = FB_VMODE_NONINTERLACED,
 322         },
 323 };
 324
 325 static struct fb_monspecs at91fb_default_monspecs = {
 326         .manufacturer   = "HIT",
 327         .monitor        = "TX09D70VM1CCA",
 328
 329         .modedb         = at91_tft_vga_modes,
 330         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 331         .hfmin          = 15000,
 332         .hfmax          = 64000,
 333         .vfmin          = 50,
 334         .vfmax          = 150,
 335 };
 336
 337 #define AT91CAP9_DEFAULT_LCDCON2        (ATMEL_LCDC_MEMOR_LITTLE \
 338                                         | ATMEL_LCDC_DISTYPE_TFT    \
 339                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 340
 341 static void at91_lcdc_power_control(int on)
 342 {
 343         if (on)
 344                 at91_set_gpio_value(AT91_PIN_PC0, 0);   /* power up */
 345         else
 346                 at91_set_gpio_value(AT91_PIN_PC0, 1);   /* power down */
 347 }
 348
 349 /* Driver datas */
 350 static struct atmel_lcdfb_info __initdata cap9adk_lcdc_data = {
 351         .default_bpp                    = 16,
 352         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 353         .default_lcdcon2                = AT91CAP9_DEFAULT_LCDCON2,
 354         .default_monspecs               = &at91fb_default_monspecs,
 355         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 356         .guard_time                     = 1,
 357 };
 358
 359 #else
 360 static struct atmel_lcdfb_info __initdata cap9adk_lcdc_data;
 361 #endif
 362
 363
 364 /*
 365  * AC97
 366  */
 367 static struct ac97c_platform_data cap9adk_ac97_data = {
 368 //      .reset_pin      = ... not connected
 369 };
 370
 371
 372 static void __init cap9adk_board_init(void)
 373 {
 374         /* Serial */
 375         at91_add_device_serial();
 376         /* USB Host */
 377         at91_add_device_usbh(&cap9adk_usbh_data);
 378         /* USB HS */
 379         at91_add_device_usba(&cap9adk_usba_udc_data);
 380         /* SPI */
 381         at91_add_device_spi(cap9adk_spi_devices, ARRAY_SIZE(cap9adk_spi_devices));
 382         /* Touchscreen */
 383         cap9adk_add_device_ts();
 384         /* MMC */
 385         at91_add_device_mmc(1, &cap9adk_mmc_data);
 386         /* Ethernet */
 387         at91_add_device_eth(&cap9adk_macb_data);
 388         /* NAND */
 389         cap9adk_add_device_nand();
 390         /* NOR Flash */
 391         cap9adk_add_device_nor();
 392         /* I2C */
 393         at91_add_device_i2c(NULL, 0);
 394         /* LCD Controller */
 395         at91_add_device_lcdc(&cap9adk_lcdc_data);
 396         /* AC97 */
 397         at91_add_device_ac97(&cap9adk_ac97_data);
 398 }
 399
 400 MACHINE_START(AT91CAP9ADK, "Atmel AT91CAP9A-DK")
 401         /* Maintainer: Stelian Pop <stelian.pop@leadtechdesign.com> */
 402         .boot_params    = AT91_SDRAM_BASE + 0x100,
 403         .timer          = &at91sam926x_timer,
 404         .map_io         = cap9adk_map_io,
 405         .init_irq       = cap9adk_init_irq,
 406         .init_machine   = cap9adk_board_init,
 407 MACHINE_END