SAFE public projects git trees. - safe/jmp/linux-2.6/blob - 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 #include <asm/irq.h>
  40
  41 #include <asm/mach/arch.h>
  42 #include <asm/mach/map.h>
  43 #include <asm/mach/irq.h>
  44
  45 #include <mach/board.h>
  46 #include <mach/gpio.h>
  47 #include <mach/at91cap9_matrix.h>
  48 #include <mach/at91sam9_smc.h>
  49
  50 #include "sam9_smc.h"
  51 #include "generic.h"
  52
  53
  54 static void __init cap9adk_map_io(void)
  55 {
  56         /* Initialize processor: 12 MHz crystal */
  57         at91cap9_initialize(12000000);
  58
  59         /* Setup the LEDs: USER1 and USER2 LED for cpu/timer... */
  60         at91_init_leds(AT91_PIN_PA10, AT91_PIN_PA11);
  61         /* ... POWER LED always on */
  62         at91_set_gpio_output(AT91_PIN_PC29, 1);
  63
  64         /* Setup the serial ports and console */
  65         at91_register_uart(0, 0, 0);            /* DBGU = ttyS0 */
  66         at91_set_serial_console(0);
  67 }
  68
  69 static void __init cap9adk_init_irq(void)
  70 {
  71         at91cap9_init_interrupts(NULL);
  72 }
  73
  74
  75 /*
  76  * USB Host port
  77  */
  78 static struct at91_usbh_data __initdata cap9adk_usbh_data = {
  79         .ports          = 2,
  80 };
  81
  82 /*
  83  * USB HS Device port
  84  */
  85 static struct usba_platform_data __initdata cap9adk_usba_udc_data = {
  86         .vbus_pin       = AT91_PIN_PB31,
  87 };
  88
  89 /*
  90  * ADS7846 Touchscreen
  91  */
  92 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
  93 static int ads7843_pendown_state(void)
  94 {
  95         return !at91_get_gpio_value(AT91_PIN_PC4);      /* Touchscreen PENIRQ */
  96 }
  97
  98 static struct ads7846_platform_data ads_info = {
  99         .model                  = 7843,
 100         .x_min                  = 150,
 101         .x_max                  = 3830,
 102         .y_min                  = 190,
 103         .y_max                  = 3830,
 104         .vref_delay_usecs       = 100,
 105         .x_plate_ohms           = 450,
 106         .y_plate_ohms           = 250,
 107         .pressure_max           = 15000,
 108         .debounce_max           = 1,
 109         .debounce_rep           = 0,
 110         .debounce_tol           = (~0),
 111         .get_pendown_state      = ads7843_pendown_state,
 112 };
 113
 114 static void __init cap9adk_add_device_ts(void)
 115 {
 116         at91_set_gpio_input(AT91_PIN_PC4, 1);   /* Touchscreen PENIRQ */
 117         at91_set_gpio_input(AT91_PIN_PC5, 1);   /* Touchscreen BUSY */
 118 }
 119 #else
 120 static void __init cap9adk_add_device_ts(void) {}
 121 #endif
 122
 123
 124 /*
 125  * SPI devices.
 126  */
 127 static struct spi_board_info cap9adk_spi_devices[] = {
 128 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 129         {       /* DataFlash card */
 130                 .modalias       = "mtd_dataflash",
 131                 .chip_select    = 0,
 132                 .max_speed_hz   = 15 * 1000 * 1000,
 133                 .bus_num        = 0,
 134         },
 135 #endif
 136 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 137         {
 138                 .modalias       = "ads7846",
 139                 .chip_select    = 3,            /* can be 2 or 3, depending on J2 jumper */
 140                 .max_speed_hz   = 125000 * 26,  /* (max sample rate @ 3V) * (cmd + data + overhead) */
 141                 .bus_num        = 0,
 142                 .platform_data  = &ads_info,
 143                 .irq            = AT91_PIN_PC4,
 144         },
 145 #endif
 146 };
 147
 148
 149 /*
 150  * MCI (SD/MMC)
 151  */
 152 static struct at91_mmc_data __initdata cap9adk_mmc_data = {
 153         .wire4          = 1,
 154 //      .det_pin        = ... not connected
 155 //      .wp_pin         = ... not connected
 156 //      .vcc_pin        = ... not connected
 157 };
 158
 159
 160 /*
 161  * MACB Ethernet device
 162  */
 163 static struct at91_eth_data __initdata cap9adk_macb_data = {
 164         .is_rmii        = 1,
 165 };
 166
 167
 168 /*
 169  * NAND flash
 170  */
 171 static struct mtd_partition __initdata cap9adk_nand_partitions[] = {
 172         {
 173                 .name   = "NAND partition",
 174                 .offset = 0,
 175                 .size   = MTDPART_SIZ_FULL,
 176         },
 177 };
 178
 179 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 180 {
 181         *num_partitions = ARRAY_SIZE(cap9adk_nand_partitions);
 182         return cap9adk_nand_partitions;
 183 }
 184
 185 static struct atmel_nand_data __initdata cap9adk_nand_data = {
 186         .ale            = 21,
 187         .cle            = 22,
 188 //      .det_pin        = ... not connected
 189 //      .rdy_pin        = ... not connected
 190         .enable_pin     = AT91_PIN_PD15,
 191         .partition_info = nand_partitions,
 192 #if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16)
 193         .bus_width_16   = 1,
 194 #else
 195         .bus_width_16   = 0,
 196 #endif
 197 };
 198
 199 static struct sam9_smc_config __initdata cap9adk_nand_smc_config = {
 200         .ncs_read_setup         = 1,
 201         .nrd_setup              = 2,
 202         .ncs_write_setup        = 1,
 203         .nwe_setup              = 2,
 204
 205         .ncs_read_pulse         = 6,
 206         .nrd_pulse              = 4,
 207         .ncs_write_pulse        = 6,
 208         .nwe_pulse              = 4,
 209
 210         .read_cycle             = 8,
 211         .write_cycle            = 8,
 212
 213         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
 214         .tdf_cycles             = 1,
 215 };
 216
 217 static void __init cap9adk_add_device_nand(void)
 218 {
 219         unsigned long csa;
 220
 221         csa = at91_sys_read(AT91_MATRIX_EBICSA);
 222         at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_VDDIOMSEL_3_3V);
 223
 224         /* setup bus-width (8 or 16) */
 225         if (cap9adk_nand_data.bus_width_16)
 226                 cap9adk_nand_smc_config.mode |= AT91_SMC_DBW_16;
 227         else
 228                 cap9adk_nand_smc_config.mode |= AT91_SMC_DBW_8;
 229
 230         /* configure chip-select 3 (NAND) */
 231         sam9_smc_configure(3, &cap9adk_nand_smc_config);
 232
 233         at91_add_device_nand(&cap9adk_nand_data);
 234 }
 235
 236
 237 /*
 238  * NOR flash
 239  */
 240 static struct mtd_partition cap9adk_nor_partitions[] = {
 241         {
 242                 .name           = "NOR partition",
 243                 .offset         = 0,
 244                 .size           = MTDPART_SIZ_FULL,
 245         },
 246 };
 247
 248 static struct physmap_flash_data cap9adk_nor_data = {
 249         .width          = 2,
 250         .parts          = cap9adk_nor_partitions,
 251         .nr_parts       = ARRAY_SIZE(cap9adk_nor_partitions),
 252 };
 253
 254 #define NOR_BASE        AT91_CHIPSELECT_0
 255 #define NOR_SIZE        SZ_8M
 256
 257 static struct resource nor_flash_resources[] = {
 258         {
 259                 .start  = NOR_BASE,
 260                 .end    = NOR_BASE + NOR_SIZE - 1,
 261                 .flags  = IORESOURCE_MEM,
 262         }
 263 };
 264
 265 static struct platform_device cap9adk_nor_flash = {
 266         .name           = "physmap-flash",
 267         .id             = 0,
 268         .dev            = {
 269                                 .platform_data  = &cap9adk_nor_data,
 270         },
 271         .resource       = nor_flash_resources,
 272         .num_resources  = ARRAY_SIZE(nor_flash_resources),
 273 };
 274
 275 static struct sam9_smc_config __initdata cap9adk_nor_smc_config = {
 276         .ncs_read_setup         = 2,
 277         .nrd_setup              = 4,
 278         .ncs_write_setup        = 2,
 279         .nwe_setup              = 4,
 280
 281         .ncs_read_pulse         = 10,
 282         .nrd_pulse              = 8,
 283         .ncs_write_pulse        = 10,
 284         .nwe_pulse              = 8,
 285
 286         .read_cycle             = 16,
 287         .write_cycle            = 16,
 288
 289         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16,
 290         .tdf_cycles             = 1,
 291 };
 292
 293 static __init void cap9adk_add_device_nor(void)
 294 {
 295         unsigned long csa;
 296
 297         csa = at91_sys_read(AT91_MATRIX_EBICSA);
 298         at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_VDDIOMSEL_3_3V);
 299
 300         /* configure chip-select 0 (NOR) */
 301         sam9_smc_configure(0, &cap9adk_nor_smc_config);
 302
 303         platform_device_register(&cap9adk_nor_flash);
 304 }
 305
 306
 307 /*
 308  * LCD Controller
 309  */
 310 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 311 static struct fb_videomode at91_tft_vga_modes[] = {
 312         {
 313                 .name           = "TX09D50VM1CCA @ 60",
 314                 .refresh        = 60,
 315                 .xres           = 240,          .yres           = 320,
 316                 .pixclock       = KHZ2PICOS(4965),
 317
 318                 .left_margin    = 1,            .right_margin   = 33,
 319                 .upper_margin   = 1,            .lower_margin   = 0,
 320                 .hsync_len      = 5,            .vsync_len      = 1,
 321
 322                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 323                 .vmode          = FB_VMODE_NONINTERLACED,
 324         },
 325 };
 326
 327 static struct fb_monspecs at91fb_default_monspecs = {
 328         .manufacturer   = "HIT",
 329         .monitor        = "TX09D70VM1CCA",
 330
 331         .modedb         = at91_tft_vga_modes,
 332         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 333         .hfmin          = 15000,
 334         .hfmax          = 64000,
 335         .vfmin          = 50,
 336         .vfmax          = 150,
 337 };
 338
 339 #define AT91CAP9_DEFAULT_LCDCON2        (ATMEL_LCDC_MEMOR_LITTLE \
 340                                         | ATMEL_LCDC_DISTYPE_TFT    \
 341                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 342
 343 static void at91_lcdc_power_control(int on)
 344 {
 345         if (on)
 346                 at91_set_gpio_value(AT91_PIN_PC0, 0);   /* power up */
 347         else
 348                 at91_set_gpio_value(AT91_PIN_PC0, 1);   /* power down */
 349 }
 350
 351 /* Driver datas */
 352 static struct atmel_lcdfb_info __initdata cap9adk_lcdc_data = {
 353         .default_bpp                    = 16,
 354         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 355         .default_lcdcon2                = AT91CAP9_DEFAULT_LCDCON2,
 356         .default_monspecs               = &at91fb_default_monspecs,
 357         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 358         .guard_time                     = 1,
 359 };
 360
 361 #else
 362 static struct atmel_lcdfb_info __initdata cap9adk_lcdc_data;
 363 #endif
 364
 365
 366 /*
 367  * AC97
 368  */
 369 static struct atmel_ac97_data cap9adk_ac97_data = {
 370 //      .reset_pin      = ... not connected
 371 };
 372
 373
 374 static void __init cap9adk_board_init(void)
 375 {
 376         /* Serial */
 377         at91_add_device_serial();
 378         /* USB Host */
 379         set_irq_type(AT91CAP9_ID_UHP, IRQ_TYPE_LEVEL_HIGH);
 380         at91_add_device_usbh(&cap9adk_usbh_data);
 381         /* USB HS */
 382         set_irq_type(AT91CAP9_ID_UDPHS, IRQ_TYPE_LEVEL_HIGH);
 383         at91_add_device_usba(&cap9adk_usba_udc_data);
 384         /* SPI */
 385         at91_add_device_spi(cap9adk_spi_devices, ARRAY_SIZE(cap9adk_spi_devices));
 386         /* Touchscreen */
 387         cap9adk_add_device_ts();
 388         /* MMC */
 389         at91_add_device_mmc(1, &cap9adk_mmc_data);
 390         /* Ethernet */
 391         at91_add_device_eth(&cap9adk_macb_data);
 392         /* NAND */
 393         cap9adk_add_device_nand();
 394         /* NOR Flash */
 395         cap9adk_add_device_nor();
 396         /* I2C */
 397         at91_add_device_i2c(NULL, 0);
 398         /* LCD Controller */
 399         set_irq_type(AT91CAP9_ID_LCDC, IRQ_TYPE_LEVEL_HIGH);
 400         at91_add_device_lcdc(&cap9adk_lcdc_data);
 401         /* AC97 */
 402         at91_add_device_ac97(&cap9adk_ac97_data);
 403 }
 404
 405 MACHINE_START(AT91CAP9ADK, "Atmel AT91CAP9A-DK")
 406         /* Maintainer: Stelian Pop <stelian.pop@leadtechdesign.com> */
 407         .phys_io        = AT91_BASE_SYS,
 408         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 409         .boot_params    = AT91_SDRAM_BASE + 0x100,
 410         .timer          = &at91sam926x_timer,
 411         .map_io         = cap9adk_map_io,
 412         .init_irq       = cap9adk_init_irq,
 413         .init_machine   = cap9adk_board_init,
 414 MACHINE_END