LXR linux/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
  53static 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_register_uart(0, 0, 0);            /* DBGU = ttyS0 */
  65        at91_set_serial_console(0);
  66}
  67
  68static void __init cap9adk_init_irq(void)
  69{
  70        at91cap9_init_interrupts(NULL);
  71}
  72
  73
  74/*
  75 * USB Host port
  76 */
  77static struct at91_usbh_data __initdata cap9adk_usbh_data = {
  78        .ports          = 2,
  79};
  80
  81/*
  82 * USB HS Device port
  83 */
  84static struct usba_platform_data __initdata cap9adk_usba_udc_data = {
  85        .vbus_pin       = AT91_PIN_PB31,
  86};
  87
  88/*
  89 * ADS7846 Touchscreen
  90 */
  91#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
  92static int ads7843_pendown_state(void)
  93{
  94        return !at91_get_gpio_value(AT91_PIN_PC4);      /* Touchscreen PENIRQ */
  95}
  96
  97static struct ads7846_platform_data ads_info = {
  98        .model                  = 7843,
  99        .x_min                  = 150,
 100        .x_max                  = 3830,
 101        .y_min                  = 190,
 102        .y_max                  = 3830,
 103        .vref_delay_usecs       = 100,
 104        .x_plate_ohms           = 450,
 105        .y_plate_ohms           = 250,
 106        .pressure_max           = 15000,
 107        .debounce_max           = 1,
 108        .debounce_rep           = 0,
 109        .debounce_tol           = (~0),
 110        .get_pendown_state      = ads7843_pendown_state,
 111};
 112
 113static void __init cap9adk_add_device_ts(void)
 114{
 115        at91_set_gpio_input(AT91_PIN_PC4, 1);   /* Touchscreen PENIRQ */
 116        at91_set_gpio_input(AT91_PIN_PC5, 1);   /* Touchscreen BUSY */
 117}
 118#else
 119static void __init cap9adk_add_device_ts(void) {}
 120#endif
 121
 122
 123/*
 124 * SPI devices.
 125 */
 126static struct spi_board_info cap9adk_spi_devices[] = {
 127#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 128        {       /* DataFlash card */
 129                .modalias       = "mtd_dataflash",
 130                .chip_select    = 0,
 131                .max_speed_hz   = 15 * 1000 * 1000,
 132                .bus_num        = 0,
 133        },
 134#endif
 135#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 136        {
 137                .modalias       = "ads7846",
 138                .chip_select    = 3,            /* can be 2 or 3, depending on J2 jumper */
 139                .max_speed_hz   = 125000 * 26,  /* (max sample rate @ 3V) * (cmd + data + overhead) */
 140                .bus_num        = 0,
 141                .platform_data  = &ads_info,
 142                .irq            = AT91_PIN_PC4,
 143        },
 144#endif
 145};
 146
 147
 148/*
 149 * MCI (SD/MMC)
 150 */
 151static struct at91_mmc_data __initdata cap9adk_mmc_data = {
 152        .wire4          = 1,
 153//      .det_pin        = ... not connected
 154//      .wp_pin         = ... not connected
 155//      .vcc_pin        = ... not connected
 156};
 157
 158
 159/*
 160 * MACB Ethernet device
 161 */
 162static struct at91_eth_data __initdata cap9adk_macb_data = {
 163        .is_rmii        = 1,
 164};
 165
 166
 167/*
 168 * NAND flash
 169 */
 170static struct mtd_partition __initdata cap9adk_nand_partitions[] = {
 171        {
 172                .name   = "NAND partition",
 173                .offset = 0,
 174                .size   = MTDPART_SIZ_FULL,
 175        },
 176};
 177
 178static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 179{
 180        *num_partitions = ARRAY_SIZE(cap9adk_nand_partitions);
 181        return cap9adk_nand_partitions;
 182}
 183
 184static struct atmel_nand_data __initdata cap9adk_nand_data = {
 185        .ale            = 21,
 186        .cle            = 22,
 187//      .det_pin        = ... not connected
 188//      .rdy_pin        = ... not connected
 189        .enable_pin     = AT91_PIN_PD15,
 190        .partition_info = nand_partitions,
 191#if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16)
 192        .bus_width_16   = 1,
 193#else
 194        .bus_width_16   = 0,
 195#endif
 196};
 197
 198
 199/*
 200 * NOR flash
 201 */
 202static struct mtd_partition cap9adk_nor_partitions[] = {
 203        {
 204                .name           = "NOR partition",
 205                .offset         = 0,
 206                .size           = MTDPART_SIZ_FULL,
 207        },
 208};
 209
 210static struct physmap_flash_data cap9adk_nor_data = {
 211        .width          = 2,
 212        .parts          = cap9adk_nor_partitions,
 213        .nr_parts       = ARRAY_SIZE(cap9adk_nor_partitions),
 214};
 215
 216#define NOR_BASE        AT91_CHIPSELECT_0
 217#define NOR_SIZE        0x800000
 218
 219static struct resource nor_flash_resources[] = {
 220        {
 221                .start  = NOR_BASE,
 222                .end    = NOR_BASE + NOR_SIZE - 1,
 223                .flags  = IORESOURCE_MEM,
 224        }
 225};
 226
 227static struct platform_device cap9adk_nor_flash = {
 228        .name           = "physmap-flash",
 229        .id             = 0,
 230        .dev            = {
 231                                .platform_data  = &cap9adk_nor_data,
 232        },
 233        .resource       = nor_flash_resources,
 234        .num_resources  = ARRAY_SIZE(nor_flash_resources),
 235};
 236
 237static __init void cap9adk_add_device_nor(void)
 238{
 239        unsigned long csa;
 240
 241        csa = at91_sys_read(AT91_MATRIX_EBICSA);
 242        at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_VDDIOMSEL_3_3V);
 243
 244        /* set the bus interface characteristics */
 245        at91_sys_write(AT91_SMC_SETUP(0), AT91_SMC_NWESETUP_(4) | AT91_SMC_NCS_WRSETUP_(2)
 246                        | AT91_SMC_NRDSETUP_(4) | AT91_SMC_NCS_RDSETUP_(2));
 247
 248        at91_sys_write(AT91_SMC_PULSE(0), AT91_SMC_NWEPULSE_(8) | AT91_SMC_NCS_WRPULSE_(10)
 249                        | AT91_SMC_NRDPULSE_(8) | AT91_SMC_NCS_RDPULSE_(10));
 250
 251        at91_sys_write(AT91_SMC_CYCLE(0), AT91_SMC_NWECYCLE_(16) | AT91_SMC_NRDCYCLE_(16));
 252
 253        at91_sys_write(AT91_SMC_MODE(0), AT91_SMC_READMODE | AT91_SMC_WRITEMODE
 254                        | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE
 255                        | AT91_SMC_DBW_16 | AT91_SMC_TDF_(1));
 256
 257        platform_device_register(&cap9adk_nor_flash);
 258}
 259
 260
 261/*
 262 * LCD Controller
 263 */
 264#if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 265static struct fb_videomode at91_tft_vga_modes[] = {
 266        {
 267                .name           = "TX09D50VM1CCA @ 60",
 268                .refresh        = 60,
 269                .xres           = 240,          .yres           = 320,
 270                .pixclock       = KHZ2PICOS(4965),
 271
 272                .left_margin    = 1,            .right_margin   = 33,
 273                .upper_margin   = 1,            .lower_margin   = 0,
 274                .hsync_len      = 5,            .vsync_len      = 1,
 275
 276                .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 277                .vmode          = FB_VMODE_NONINTERLACED,
 278        },
 279};
 280
 281static struct fb_monspecs at91fb_default_monspecs = {
 282        .manufacturer   = "HIT",
 283        .monitor        = "TX09D70VM1CCA",
 284
 285        .modedb         = at91_tft_vga_modes,
 286        .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 287        .hfmin          = 15000,
 288        .hfmax          = 64000,
 289        .vfmin          = 50,
 290        .vfmax          = 150,
 291};
 292
 293#define AT91CAP9_DEFAULT_LCDCON2        (ATMEL_LCDC_MEMOR_LITTLE \
 294                                        | ATMEL_LCDC_DISTYPE_TFT    \
 295                                        | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 296
 297static void at91_lcdc_power_control(int on)
 298{
 299        if (on)
 300                at91_set_gpio_value(AT91_PIN_PC0, 0);   /* power up */
 301        else
 302                at91_set_gpio_value(AT91_PIN_PC0, 1);   /* power down */
 303}
 304
 305/* Driver datas */
 306static struct atmel_lcdfb_info __initdata cap9adk_lcdc_data = {
 307        .default_bpp                    = 16,
 308        .default_dmacon                 = ATMEL_LCDC_DMAEN,
 309        .default_lcdcon2                = AT91CAP9_DEFAULT_LCDCON2,
 310        .default_monspecs               = &at91fb_default_monspecs,
 311        .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 312        .guard_time                     = 1,
 313};
 314
 315#else
 316static struct atmel_lcdfb_info __initdata cap9adk_lcdc_data;
 317#endif
 318
 319
 320/*
 321 * AC97
 322 */
 323static struct atmel_ac97_data cap9adk_ac97_data = {
 324//      .reset_pin      = ... not connected
 325};
 326
 327
 328static void __init cap9adk_board_init(void)
 329{
 330        /* Serial */
 331        at91_add_device_serial();
 332        /* USB Host */
 333        set_irq_type(AT91CAP9_ID_UHP, IRQ_TYPE_LEVEL_HIGH);
 334        at91_add_device_usbh(&cap9adk_usbh_data);
 335        /* USB HS */
 336        set_irq_type(AT91CAP9_ID_UDPHS, IRQ_TYPE_LEVEL_HIGH);
 337        at91_add_device_usba(&cap9adk_usba_udc_data);
 338        /* SPI */
 339        at91_add_device_spi(cap9adk_spi_devices, ARRAY_SIZE(cap9adk_spi_devices));
 340        /* Touchscreen */
 341        cap9adk_add_device_ts();
 342        /* MMC */
 343        at91_add_device_mmc(1, &cap9adk_mmc_data);
 344        /* Ethernet */
 345        at91_add_device_eth(&cap9adk_macb_data);
 346        /* NAND */
 347        at91_add_device_nand(&cap9adk_nand_data);
 348        /* NOR Flash */
 349        cap9adk_add_device_nor();
 350        /* I2C */
 351        at91_add_device_i2c(NULL, 0);
 352        /* LCD Controller */
 353        set_irq_type(AT91CAP9_ID_LCDC, IRQ_TYPE_LEVEL_HIGH);
 354        at91_add_device_lcdc(&cap9adk_lcdc_data);
 355        /* AC97 */
 356        at91_add_device_ac97(&cap9adk_ac97_data);
 357}
 358
 359MACHINE_START(AT91CAP9ADK, "Atmel AT91CAP9A-DK")
 360        /* Maintainer: Stelian Pop <stelian.pop@leadtechdesign.com> */
 361        .phys_io        = AT91_BASE_SYS,
 362        .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 363        .boot_params    = AT91_SDRAM_BASE + 0x100,
 364        .timer          = &at91sam926x_timer,
 365        .map_io         = cap9adk_map_io,
 366        .init_irq       = cap9adk_init_irq,
 367        .init_machine   = cap9adk_board_init,
 368MACHINE_END
 369