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 "generic.h"
  51
  52
  53 static void __init cap9adk_map_io(void)
  54 {
  55         /* Initialize processor: 12 MHz crystal */
  56         at91cap9_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_init_uarts();
  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
 198 /*
 199  * NOR flash
 200  */
 201 static struct mtd_partition cap9adk_nor_partitions[] = {
 202         {
 203                 .name           = "NOR partition",
 204                 .offset         = 0,
 205                 .size           = MTDPART_SIZ_FULL,
 206         },
 207 };
 208
 209 static struct physmap_flash_data cap9adk_nor_data = {
 210         .width          = 2,
 211         .parts          = cap9adk_nor_partitions,
 212         .nr_parts       = ARRAY_SIZE(cap9adk_nor_partitions),
 213 };
 214
 215 #define NOR_BASE        AT91_CHIPSELECT_0
 216 #define NOR_SIZE        0x800000
 217
 218 static struct resource nor_flash_resources[] = {
 219         {
 220                 .start  = NOR_BASE,
 221                 .end    = NOR_BASE + NOR_SIZE - 1,
 222                 .flags  = IORESOURCE_MEM,
 223         }
 224 };
 225
 226 static struct platform_device cap9adk_nor_flash = {
 227         .name           = "physmap-flash",
 228         .id             = 0,
 229         .dev            = {
 230                                 .platform_data  = &cap9adk_nor_data,
 231         },
 232         .resource       = nor_flash_resources,
 233         .num_resources  = ARRAY_SIZE(nor_flash_resources),
 234 };
 235
 236 static __init void cap9adk_add_device_nor(void)
 237 {
 238         unsigned long csa;
 239
 240         csa = at91_sys_read(AT91_MATRIX_EBICSA);
 241         at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_VDDIOMSEL_3_3V);
 242
 243         /* set the bus interface characteristics */
 244         at91_sys_write(AT91_SMC_SETUP(0), AT91_SMC_NWESETUP_(4) | AT91_SMC_NCS_WRSETUP_(2)
 245                         | AT91_SMC_NRDSETUP_(4) | AT91_SMC_NCS_RDSETUP_(2));
 246
 247         at91_sys_write(AT91_SMC_PULSE(0), AT91_SMC_NWEPULSE_(8) | AT91_SMC_NCS_WRPULSE_(10)
 248                         | AT91_SMC_NRDPULSE_(8) | AT91_SMC_NCS_RDPULSE_(10));
 249
 250         at91_sys_write(AT91_SMC_CYCLE(0), AT91_SMC_NWECYCLE_(16) | AT91_SMC_NRDCYCLE_(16));
 251
 252         at91_sys_write(AT91_SMC_MODE(0), AT91_SMC_READMODE | AT91_SMC_WRITEMODE
 253                         | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE
 254                         | AT91_SMC_DBW_16 | AT91_SMC_TDF_(1));
 255
 256         platform_device_register(&cap9adk_nor_flash);
 257 }
 258
 259
 260 /*
 261  * LCD Controller
 262  */
 263 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 264 static struct fb_videomode at91_tft_vga_modes[] = {
 265         {
 266                 .name           = "TX09D50VM1CCA @ 60",
 267                 .refresh        = 60,
 268                 .xres           = 240,          .yres           = 320,
 269                 .pixclock       = KHZ2PICOS(4965),
 270
 271                 .left_margin    = 1,            .right_margin   = 33,
 272                 .upper_margin   = 1,            .lower_margin   = 0,
 273                 .hsync_len      = 5,            .vsync_len      = 1,
 274
 275                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 276                 .vmode          = FB_VMODE_NONINTERLACED,
 277         },
 278 };
 279
 280 static struct fb_monspecs at91fb_default_monspecs = {
 281         .manufacturer   = "HIT",
 282         .monitor        = "TX09D70VM1CCA",
 283
 284         .modedb         = at91_tft_vga_modes,
 285         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 286         .hfmin          = 15000,
 287         .hfmax          = 64000,
 288         .vfmin          = 50,
 289         .vfmax          = 150,
 290 };
 291
 292 #define AT91CAP9_DEFAULT_LCDCON2        (ATMEL_LCDC_MEMOR_LITTLE \
 293                                         | ATMEL_LCDC_DISTYPE_TFT    \
 294                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 295
 296 static void at91_lcdc_power_control(int on)
 297 {
 298         if (on)
 299                 at91_set_gpio_value(AT91_PIN_PC0, 0);   /* power up */
 300         else
 301                 at91_set_gpio_value(AT91_PIN_PC0, 1);   /* power down */
 302 }
 303
 304 /* Driver datas */
 305 static struct atmel_lcdfb_info __initdata cap9adk_lcdc_data = {
 306         .default_bpp                    = 16,
 307         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 308         .default_lcdcon2                = AT91CAP9_DEFAULT_LCDCON2,
 309         .default_monspecs               = &at91fb_default_monspecs,
 310         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 311         .guard_time                     = 1,
 312 };
 313
 314 #else
 315 static struct atmel_lcdfb_info __initdata cap9adk_lcdc_data;
 316 #endif
 317
 318
 319 /*
 320  * AC97
 321  */
 322 static struct atmel_ac97_data cap9adk_ac97_data = {
 323 //      .reset_pin      = ... not connected
 324 };
 325
 326
 327 static void __init cap9adk_board_init(void)
 328 {
 329         /* Serial */
 330         at91_add_device_serial();
 331         /* USB Host */
 332         set_irq_type(AT91CAP9_ID_UHP, IRQ_TYPE_LEVEL_HIGH);
 333         at91_add_device_usbh(&cap9adk_usbh_data);
 334         /* USB HS */
 335         set_irq_type(AT91CAP9_ID_UDPHS, IRQ_TYPE_LEVEL_HIGH);
 336         at91_add_device_usba(&cap9adk_usba_udc_data);
 337         /* SPI */
 338         at91_add_device_spi(cap9adk_spi_devices, ARRAY_SIZE(cap9adk_spi_devices));
 339         /* Touchscreen */
 340         cap9adk_add_device_ts();
 341         /* MMC */
 342         at91_add_device_mmc(1, &cap9adk_mmc_data);
 343         /* Ethernet */
 344         at91_add_device_eth(&cap9adk_macb_data);
 345         /* NAND */
 346         at91_add_device_nand(&cap9adk_nand_data);
 347         /* NOR Flash */
 348         cap9adk_add_device_nor();
 349         /* I2C */
 350         at91_add_device_i2c(NULL, 0);
 351         /* LCD Controller */
 352         set_irq_type(AT91CAP9_ID_LCDC, IRQ_TYPE_LEVEL_HIGH);
 353         at91_add_device_lcdc(&cap9adk_lcdc_data);
 354         /* AC97 */
 355         at91_add_device_ac97(&cap9adk_ac97_data);
 356 }
 357
 358 MACHINE_START(AT91CAP9ADK, "Atmel AT91CAP9A-DK")
 359         /* Maintainer: Stelian Pop <stelian.pop@leadtechdesign.com> */
 360         .phys_io        = AT91_BASE_SYS,
 361         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 362         .boot_params    = AT91_SDRAM_BASE + 0x100,
 363         .timer          = &at91sam926x_timer,
 364         .map_io         = cap9adk_map_io,
 365         .init_irq       = cap9adk_init_irq,
 366         .init_machine   = cap9adk_board_init,
 367 MACHINE_END