linux/arch/arm/mach-pxa/poodle.c
<<
>>
Prefs
   1/*
   2 * linux/arch/arm/mach-pxa/poodle.c
   3 *
   4 *  Support for the SHARP Poodle Board.
   5 *
   6 * Based on:
   7 *  linux/arch/arm/mach-pxa/lubbock.c Author:   Nicolas Pitre
   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 version 2 as
  11 *  published by the Free Software Foundation.
  12 *
  13 * Change Log
  14 *  12-Dec-2002 Sharp Corporation for Poodle
  15 *  John Lenz <lenz@cs.wisc.edu> updates to 2.6
  16 */
  17#include <linux/kernel.h>
  18#include <linux/init.h>
  19#include <linux/export.h>
  20#include <linux/platform_device.h>
  21#include <linux/fb.h>
  22#include <linux/pm.h>
  23#include <linux/delay.h>
  24#include <linux/mtd/physmap.h>
  25#include <linux/gpio.h>
  26#include <linux/i2c.h>
  27#include <linux/i2c/pxa-i2c.h>
  28#include <linux/spi/spi.h>
  29#include <linux/spi/ads7846.h>
  30#include <linux/spi/pxa2xx_spi.h>
  31#include <linux/mtd/sharpsl.h>
  32
  33#include <mach/hardware.h>
  34#include <asm/mach-types.h>
  35#include <asm/irq.h>
  36#include <asm/setup.h>
  37
  38#include <asm/mach/arch.h>
  39#include <asm/mach/map.h>
  40#include <asm/mach/irq.h>
  41
  42#include <mach/pxa25x.h>
  43#include <linux/platform_data/mmc-pxamci.h>
  44#include <mach/udc.h>
  45#include <linux/platform_data/irda-pxaficp.h>
  46#include <mach/poodle.h>
  47#include <linux/platform_data/video-pxafb.h>
  48
  49#include <asm/hardware/scoop.h>
  50#include <asm/hardware/locomo.h>
  51#include <asm/mach/sharpsl_param.h>
  52
  53#include "generic.h"
  54#include "devices.h"
  55
  56static unsigned long poodle_pin_config[] __initdata = {
  57        /* I/O */
  58        GPIO79_nCS_3,
  59        GPIO80_nCS_4,
  60        GPIO18_RDY,
  61
  62        /* Clock */
  63        GPIO12_32KHz,
  64
  65        /* SSP1 */
  66        GPIO23_SSP1_SCLK,
  67        GPIO25_SSP1_TXD,
  68        GPIO26_SSP1_RXD,
  69        GPIO24_GPIO,    /* POODLE_GPIO_TP_CS - SFRM as chip select */
  70
  71        /* I2S */
  72        GPIO28_I2S_BITCLK_OUT,
  73        GPIO29_I2S_SDATA_IN,
  74        GPIO30_I2S_SDATA_OUT,
  75        GPIO31_I2S_SYNC,
  76        GPIO32_I2S_SYSCLK,
  77
  78        /* Infra-Red */
  79        GPIO47_FICP_TXD,
  80        GPIO46_FICP_RXD,
  81
  82        /* FFUART */
  83        GPIO40_FFUART_DTR,
  84        GPIO41_FFUART_RTS,
  85        GPIO39_FFUART_TXD,
  86        GPIO37_FFUART_DSR,
  87        GPIO34_FFUART_RXD,
  88        GPIO35_FFUART_CTS,
  89
  90        /* LCD */
  91        GPIOxx_LCD_TFT_16BPP,
  92
  93        /* PC Card */
  94        GPIO48_nPOE,
  95        GPIO49_nPWE,
  96        GPIO50_nPIOR,
  97        GPIO51_nPIOW,
  98        GPIO52_nPCE_1,
  99        GPIO53_nPCE_2,
 100        GPIO54_nPSKTSEL,
 101        GPIO55_nPREG,
 102        GPIO56_nPWAIT,
 103        GPIO57_nIOIS16,
 104
 105        /* MMC */
 106        GPIO6_MMC_CLK,
 107        GPIO8_MMC_CS0,
 108
 109        /* GPIO */
 110        GPIO9_GPIO,     /* POODLE_GPIO_nSD_DETECT */
 111        GPIO7_GPIO,     /* POODLE_GPIO_nSD_WP */
 112        GPIO3_GPIO,     /* POODLE_GPIO_SD_PWR */
 113        GPIO33_GPIO,    /* POODLE_GPIO_SD_PWR1 */
 114
 115        GPIO20_GPIO,    /* POODLE_GPIO_USB_PULLUP */
 116        GPIO22_GPIO,    /* POODLE_GPIO_IR_ON */
 117};
 118
 119static struct resource poodle_scoop_resources[] = {
 120        [0] = {
 121                .start          = 0x10800000,
 122                .end            = 0x10800fff,
 123                .flags          = IORESOURCE_MEM,
 124        },
 125};
 126
 127static struct scoop_config poodle_scoop_setup = {
 128        .io_dir         = POODLE_SCOOP_IO_DIR,
 129        .io_out         = POODLE_SCOOP_IO_OUT,
 130        .gpio_base      = POODLE_SCOOP_GPIO_BASE,
 131};
 132
 133struct platform_device poodle_scoop_device = {
 134        .name           = "sharp-scoop",
 135        .id             = -1,
 136        .dev            = {
 137                .platform_data  = &poodle_scoop_setup,
 138        },
 139        .num_resources  = ARRAY_SIZE(poodle_scoop_resources),
 140        .resource       = poodle_scoop_resources,
 141};
 142
 143static struct scoop_pcmcia_dev poodle_pcmcia_scoop[] = {
 144{
 145        .dev        = &poodle_scoop_device.dev,
 146        .irq        = POODLE_IRQ_GPIO_CF_IRQ,
 147        .cd_irq     = POODLE_IRQ_GPIO_CF_CD,
 148        .cd_irq_str = "PCMCIA0 CD",
 149},
 150};
 151
 152static struct scoop_pcmcia_config poodle_pcmcia_config = {
 153        .devs         = &poodle_pcmcia_scoop[0],
 154        .num_devs     = 1,
 155};
 156
 157EXPORT_SYMBOL(poodle_scoop_device);
 158
 159
 160static struct platform_device poodle_audio_device = {
 161        .name   = "poodle-audio",
 162        .id     = -1,
 163};
 164
 165/* LoCoMo device */
 166static struct resource locomo_resources[] = {
 167        [0] = {
 168                .start          = 0x10000000,
 169                .end            = 0x10001fff,
 170                .flags          = IORESOURCE_MEM,
 171        },
 172        [1] = {
 173                .start          = PXA_GPIO_TO_IRQ(10),
 174                .end            = PXA_GPIO_TO_IRQ(10),
 175                .flags          = IORESOURCE_IRQ,
 176        },
 177};
 178
 179static struct locomo_platform_data locomo_info = {
 180        .irq_base       = IRQ_BOARD_START,
 181};
 182
 183struct platform_device poodle_locomo_device = {
 184        .name           = "locomo",
 185        .id             = 0,
 186        .num_resources  = ARRAY_SIZE(locomo_resources),
 187        .resource       = locomo_resources,
 188        .dev            = {
 189                .platform_data  = &locomo_info,
 190        },
 191};
 192
 193EXPORT_SYMBOL(poodle_locomo_device);
 194
 195#if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
 196static struct pxa2xx_spi_master poodle_spi_info = {
 197        .num_chipselect = 1,
 198};
 199
 200static struct ads7846_platform_data poodle_ads7846_info = {
 201        .model                  = 7846,
 202        .vref_delay_usecs       = 100,
 203        .x_plate_ohms           = 419,
 204        .y_plate_ohms           = 486,
 205        .gpio_pendown           = POODLE_GPIO_TP_INT,
 206};
 207
 208static struct pxa2xx_spi_chip poodle_ads7846_chip = {
 209        .gpio_cs                = POODLE_GPIO_TP_CS,
 210};
 211
 212static struct spi_board_info poodle_spi_devices[] = {
 213        {
 214                .modalias       = "ads7846",
 215                .max_speed_hz   = 10000,
 216                .bus_num        = 1,
 217                .platform_data  = &poodle_ads7846_info,
 218                .controller_data= &poodle_ads7846_chip,
 219                .irq            = PXA_GPIO_TO_IRQ(POODLE_GPIO_TP_INT),
 220        },
 221};
 222
 223static void __init poodle_init_spi(void)
 224{
 225        pxa2xx_set_spi_info(1, &poodle_spi_info);
 226        spi_register_board_info(ARRAY_AND_SIZE(poodle_spi_devices));
 227}
 228#else
 229static inline void poodle_init_spi(void) {}
 230#endif
 231
 232/*
 233 * MMC/SD Device
 234 *
 235 * The card detect interrupt isn't debounced so we delay it by 250ms
 236 * to give the card a chance to fully insert/eject.
 237 */
 238static int poodle_mci_init(struct device *dev, irq_handler_t poodle_detect_int, void *data)
 239{
 240        int err;
 241
 242        err = gpio_request(POODLE_GPIO_SD_PWR, "SD_PWR");
 243        if (err)
 244                goto err_free_2;
 245
 246        err = gpio_request(POODLE_GPIO_SD_PWR1, "SD_PWR1");
 247        if (err)
 248                goto err_free_3;
 249
 250        gpio_direction_output(POODLE_GPIO_SD_PWR, 0);
 251        gpio_direction_output(POODLE_GPIO_SD_PWR1, 0);
 252
 253        return 0;
 254
 255err_free_3:
 256        gpio_free(POODLE_GPIO_SD_PWR);
 257err_free_2:
 258        return err;
 259}
 260
 261static int poodle_mci_setpower(struct device *dev, unsigned int vdd)
 262{
 263        struct pxamci_platform_data* p_d = dev->platform_data;
 264
 265        if ((1 << vdd) & p_d->ocr_mask) {
 266                gpio_set_value(POODLE_GPIO_SD_PWR, 1);
 267                mdelay(2);
 268                gpio_set_value(POODLE_GPIO_SD_PWR1, 1);
 269        } else {
 270                gpio_set_value(POODLE_GPIO_SD_PWR1, 0);
 271                gpio_set_value(POODLE_GPIO_SD_PWR, 0);
 272        }
 273
 274        return 0;
 275}
 276
 277static void poodle_mci_exit(struct device *dev, void *data)
 278{
 279        gpio_free(POODLE_GPIO_SD_PWR1);
 280        gpio_free(POODLE_GPIO_SD_PWR);
 281}
 282
 283static struct pxamci_platform_data poodle_mci_platform_data = {
 284        .detect_delay_ms        = 250,
 285        .ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
 286        .init                   = poodle_mci_init,
 287        .setpower               = poodle_mci_setpower,
 288        .exit                   = poodle_mci_exit,
 289        .gpio_card_detect       = POODLE_GPIO_nSD_DETECT,
 290        .gpio_card_ro           = POODLE_GPIO_nSD_WP,
 291        .gpio_power             = -1,
 292};
 293
 294
 295/*
 296 * Irda
 297 */
 298static struct pxaficp_platform_data poodle_ficp_platform_data = {
 299        .gpio_pwdown            = POODLE_GPIO_IR_ON,
 300        .transceiver_cap        = IR_SIRMODE | IR_OFF,
 301};
 302
 303
 304/*
 305 * USB Device Controller
 306 */
 307static struct pxa2xx_udc_mach_info udc_info __initdata = {
 308        /* no connect GPIO; poodle can't tell connection status */
 309        .gpio_pullup    = POODLE_GPIO_USB_PULLUP,
 310};
 311
 312
 313/* PXAFB device */
 314static struct pxafb_mode_info poodle_fb_mode = {
 315        .pixclock       = 144700,
 316        .xres           = 320,
 317        .yres           = 240,
 318        .bpp            = 16,
 319        .hsync_len      = 7,
 320        .left_margin    = 11,
 321        .right_margin   = 30,
 322        .vsync_len      = 2,
 323        .upper_margin   = 2,
 324        .lower_margin   = 0,
 325        .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 326};
 327
 328static struct pxafb_mach_info poodle_fb_info = {
 329        .modes          = &poodle_fb_mode,
 330        .num_modes      = 1,
 331        .lcd_conn       = LCD_COLOR_TFT_16BPP,
 332};
 333
 334static struct mtd_partition sharpsl_nand_partitions[] = {
 335        {
 336                .name = "System Area",
 337                .offset = 0,
 338                .size = 7 * 1024 * 1024,
 339        },
 340        {
 341                .name = "Root Filesystem",
 342                .offset = 7 * 1024 * 1024,
 343                .size = 22 * 1024 * 1024,
 344        },
 345        {
 346                .name = "Home Filesystem",
 347                .offset = MTDPART_OFS_APPEND,
 348                .size = MTDPART_SIZ_FULL,
 349        },
 350};
 351
 352static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
 353
 354static struct nand_bbt_descr sharpsl_bbt = {
 355        .options = 0,
 356        .offs = 4,
 357        .len = 2,
 358        .pattern = scan_ff_pattern
 359};
 360
 361static struct sharpsl_nand_platform_data sharpsl_nand_platform_data = {
 362        .badblock_pattern       = &sharpsl_bbt,
 363        .partitions             = sharpsl_nand_partitions,
 364        .nr_partitions          = ARRAY_SIZE(sharpsl_nand_partitions),
 365};
 366
 367static struct resource sharpsl_nand_resources[] = {
 368        {
 369                .start  = 0x0C000000,
 370                .end    = 0x0C000FFF,
 371                .flags  = IORESOURCE_MEM,
 372        },
 373};
 374
 375static struct platform_device sharpsl_nand_device = {
 376        .name           = "sharpsl-nand",
 377        .id             = -1,
 378        .resource       = sharpsl_nand_resources,
 379        .num_resources  = ARRAY_SIZE(sharpsl_nand_resources),
 380        .dev.platform_data      = &sharpsl_nand_platform_data,
 381};
 382
 383static struct mtd_partition sharpsl_rom_parts[] = {
 384        {
 385                .name   ="Boot PROM Filesystem",
 386                .offset = 0x00120000,
 387                .size   = MTDPART_SIZ_FULL,
 388        },
 389};
 390
 391static struct physmap_flash_data sharpsl_rom_data = {
 392        .width          = 2,
 393        .nr_parts       = ARRAY_SIZE(sharpsl_rom_parts),
 394        .parts          = sharpsl_rom_parts,
 395};
 396
 397static struct resource sharpsl_rom_resources[] = {
 398        {
 399                .start  = 0x00000000,
 400                .end    = 0x007fffff,
 401                .flags  = IORESOURCE_MEM,
 402        },
 403};
 404
 405static struct platform_device sharpsl_rom_device = {
 406        .name   = "physmap-flash",
 407        .id     = -1,
 408        .resource = sharpsl_rom_resources,
 409        .num_resources = ARRAY_SIZE(sharpsl_rom_resources),
 410        .dev.platform_data = &sharpsl_rom_data,
 411};
 412
 413static struct platform_device *devices[] __initdata = {
 414        &poodle_locomo_device,
 415        &poodle_scoop_device,
 416        &poodle_audio_device,
 417        &sharpsl_nand_device,
 418        &sharpsl_rom_device,
 419};
 420
 421static struct i2c_board_info __initdata poodle_i2c_devices[] = {
 422        { I2C_BOARD_INFO("wm8731", 0x1b) },
 423};
 424
 425static void poodle_poweroff(void)
 426{
 427        pxa_restart(REBOOT_HARD, NULL);
 428}
 429
 430static void __init poodle_init(void)
 431{
 432        int ret = 0;
 433
 434        pm_power_off = poodle_poweroff;
 435
 436        PCFR |= PCFR_OPDE;
 437
 438        pxa2xx_mfp_config(ARRAY_AND_SIZE(poodle_pin_config));
 439
 440        pxa_set_ffuart_info(NULL);
 441        pxa_set_btuart_info(NULL);
 442        pxa_set_stuart_info(NULL);
 443
 444        platform_scoop_config = &poodle_pcmcia_config;
 445
 446        ret = platform_add_devices(devices, ARRAY_SIZE(devices));
 447        if (ret)
 448                pr_warning("poodle: Unable to register LoCoMo device\n");
 449
 450        pxa_set_fb_info(&poodle_locomo_device.dev, &poodle_fb_info);
 451        pxa_set_udc_info(&udc_info);
 452        pxa_set_mci_info(&poodle_mci_platform_data);
 453        pxa_set_ficp_info(&poodle_ficp_platform_data);
 454        pxa_set_i2c_info(NULL);
 455        i2c_register_board_info(0, ARRAY_AND_SIZE(poodle_i2c_devices));
 456        poodle_init_spi();
 457}
 458
 459static void __init fixup_poodle(struct tag *tags, char **cmdline,
 460                                struct meminfo *mi)
 461{
 462        sharpsl_save_param();
 463        mi->nr_banks=1;
 464        mi->bank[0].start = 0xa0000000;
 465        mi->bank[0].size = (32*1024*1024);
 466}
 467
 468MACHINE_START(POODLE, "SHARP Poodle")
 469        .fixup          = fixup_poodle,
 470        .map_io         = pxa25x_map_io,
 471        .nr_irqs        = POODLE_NR_IRQS,       /* 4 for LoCoMo */
 472        .init_irq       = pxa25x_init_irq,
 473        .handle_irq     = pxa25x_handle_irq,
 474        .init_time      = pxa_timer_init,
 475        .init_machine   = poodle_init,
 476        .restart        = pxa_restart,
 477MACHINE_END
 478