linux/arch/arm/mach-pxa/poodle.c
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   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/regulator/machine.h>
  29#include <linux/spi/spi.h>
  30#include <linux/spi/ads7846.h>
  31#include <linux/spi/pxa2xx_spi.h>
  32#include <linux/mtd/sharpsl.h>
  33#include <linux/memblock.h>
  34
  35#include <mach/hardware.h>
  36#include <asm/mach-types.h>
  37#include <asm/irq.h>
  38#include <asm/setup.h>
  39
  40#include <asm/mach/arch.h>
  41#include <asm/mach/map.h>
  42#include <asm/mach/irq.h>
  43
  44#include "pxa25x.h"
  45#include <linux/platform_data/mmc-pxamci.h>
  46#include "udc.h"
  47#include <linux/platform_data/irda-pxaficp.h>
  48#include <mach/poodle.h>
  49#include <linux/platform_data/video-pxafb.h>
  50
  51#include <asm/hardware/scoop.h>
  52#include <asm/hardware/locomo.h>
  53#include <asm/mach/sharpsl_param.h>
  54
  55#include "generic.h"
  56#include "devices.h"
  57
  58static unsigned long poodle_pin_config[] __initdata = {
  59        /* I/O */
  60        GPIO79_nCS_3,
  61        GPIO80_nCS_4,
  62        GPIO18_RDY,
  63
  64        /* Clock */
  65        GPIO12_32KHz,
  66
  67        /* SSP1 */
  68        GPIO23_SSP1_SCLK,
  69        GPIO25_SSP1_TXD,
  70        GPIO26_SSP1_RXD,
  71        GPIO24_GPIO,    /* POODLE_GPIO_TP_CS - SFRM as chip select */
  72
  73        /* I2S */
  74        GPIO28_I2S_BITCLK_OUT,
  75        GPIO29_I2S_SDATA_IN,
  76        GPIO30_I2S_SDATA_OUT,
  77        GPIO31_I2S_SYNC,
  78        GPIO32_I2S_SYSCLK,
  79
  80        /* Infra-Red */
  81        GPIO47_FICP_TXD,
  82        GPIO46_FICP_RXD,
  83
  84        /* FFUART */
  85        GPIO40_FFUART_DTR,
  86        GPIO41_FFUART_RTS,
  87        GPIO39_FFUART_TXD,
  88        GPIO37_FFUART_DSR,
  89        GPIO34_FFUART_RXD,
  90        GPIO35_FFUART_CTS,
  91
  92        /* LCD */
  93        GPIOxx_LCD_TFT_16BPP,
  94
  95        /* PC Card */
  96        GPIO48_nPOE,
  97        GPIO49_nPWE,
  98        GPIO50_nPIOR,
  99        GPIO51_nPIOW,
 100        GPIO52_nPCE_1,
 101        GPIO53_nPCE_2,
 102        GPIO54_nPSKTSEL,
 103        GPIO55_nPREG,
 104        GPIO56_nPWAIT,
 105        GPIO57_nIOIS16,
 106
 107        /* MMC */
 108        GPIO6_MMC_CLK,
 109        GPIO8_MMC_CS0,
 110
 111        /* GPIO */
 112        GPIO9_GPIO,     /* POODLE_GPIO_nSD_DETECT */
 113        GPIO7_GPIO,     /* POODLE_GPIO_nSD_WP */
 114        GPIO3_GPIO,     /* POODLE_GPIO_SD_PWR */
 115        GPIO33_GPIO,    /* POODLE_GPIO_SD_PWR1 */
 116
 117        GPIO20_GPIO,    /* POODLE_GPIO_USB_PULLUP */
 118        GPIO22_GPIO,    /* POODLE_GPIO_IR_ON */
 119};
 120
 121static struct resource poodle_scoop_resources[] = {
 122        [0] = {
 123                .start          = 0x10800000,
 124                .end            = 0x10800fff,
 125                .flags          = IORESOURCE_MEM,
 126        },
 127};
 128
 129static struct scoop_config poodle_scoop_setup = {
 130        .io_dir         = POODLE_SCOOP_IO_DIR,
 131        .io_out         = POODLE_SCOOP_IO_OUT,
 132        .gpio_base      = POODLE_SCOOP_GPIO_BASE,
 133};
 134
 135struct platform_device poodle_scoop_device = {
 136        .name           = "sharp-scoop",
 137        .id             = -1,
 138        .dev            = {
 139                .platform_data  = &poodle_scoop_setup,
 140        },
 141        .num_resources  = ARRAY_SIZE(poodle_scoop_resources),
 142        .resource       = poodle_scoop_resources,
 143};
 144
 145static struct scoop_pcmcia_dev poodle_pcmcia_scoop[] = {
 146{
 147        .dev        = &poodle_scoop_device.dev,
 148        .irq        = POODLE_IRQ_GPIO_CF_IRQ,
 149        .cd_irq     = POODLE_IRQ_GPIO_CF_CD,
 150        .cd_irq_str = "PCMCIA0 CD",
 151},
 152};
 153
 154static struct scoop_pcmcia_config poodle_pcmcia_config = {
 155        .devs         = &poodle_pcmcia_scoop[0],
 156        .num_devs     = 1,
 157};
 158
 159EXPORT_SYMBOL(poodle_scoop_device);
 160
 161
 162static struct platform_device poodle_audio_device = {
 163        .name   = "poodle-audio",
 164        .id     = -1,
 165};
 166
 167/* LoCoMo device */
 168static struct resource locomo_resources[] = {
 169        [0] = {
 170                .start          = 0x10000000,
 171                .end            = 0x10001fff,
 172                .flags          = IORESOURCE_MEM,
 173        },
 174        [1] = {
 175                .start          = PXA_GPIO_TO_IRQ(10),
 176                .end            = PXA_GPIO_TO_IRQ(10),
 177                .flags          = IORESOURCE_IRQ,
 178        },
 179};
 180
 181static struct locomo_platform_data locomo_info = {
 182        .irq_base       = IRQ_BOARD_START,
 183};
 184
 185struct platform_device poodle_locomo_device = {
 186        .name           = "locomo",
 187        .id             = 0,
 188        .num_resources  = ARRAY_SIZE(locomo_resources),
 189        .resource       = locomo_resources,
 190        .dev            = {
 191                .platform_data  = &locomo_info,
 192        },
 193};
 194
 195EXPORT_SYMBOL(poodle_locomo_device);
 196
 197#if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
 198static struct pxa2xx_spi_master poodle_spi_info = {
 199        .num_chipselect = 1,
 200};
 201
 202static struct ads7846_platform_data poodle_ads7846_info = {
 203        .model                  = 7846,
 204        .vref_delay_usecs       = 100,
 205        .x_plate_ohms           = 419,
 206        .y_plate_ohms           = 486,
 207        .gpio_pendown           = POODLE_GPIO_TP_INT,
 208};
 209
 210static struct pxa2xx_spi_chip poodle_ads7846_chip = {
 211        .gpio_cs                = POODLE_GPIO_TP_CS,
 212};
 213
 214static struct spi_board_info poodle_spi_devices[] = {
 215        {
 216                .modalias       = "ads7846",
 217                .max_speed_hz   = 10000,
 218                .bus_num        = 1,
 219                .platform_data  = &poodle_ads7846_info,
 220                .controller_data= &poodle_ads7846_chip,
 221                .irq            = PXA_GPIO_TO_IRQ(POODLE_GPIO_TP_INT),
 222        },
 223};
 224
 225static void __init poodle_init_spi(void)
 226{
 227        pxa2xx_set_spi_info(1, &poodle_spi_info);
 228        spi_register_board_info(ARRAY_AND_SIZE(poodle_spi_devices));
 229}
 230#else
 231static inline void poodle_init_spi(void) {}
 232#endif
 233
 234/*
 235 * MMC/SD Device
 236 *
 237 * The card detect interrupt isn't debounced so we delay it by 250ms
 238 * to give the card a chance to fully insert/eject.
 239 */
 240static int poodle_mci_init(struct device *dev, irq_handler_t poodle_detect_int, void *data)
 241{
 242        int err;
 243
 244        err = gpio_request(POODLE_GPIO_SD_PWR, "SD_PWR");
 245        if (err)
 246                goto err_free_2;
 247
 248        err = gpio_request(POODLE_GPIO_SD_PWR1, "SD_PWR1");
 249        if (err)
 250                goto err_free_3;
 251
 252        gpio_direction_output(POODLE_GPIO_SD_PWR, 0);
 253        gpio_direction_output(POODLE_GPIO_SD_PWR1, 0);
 254
 255        return 0;
 256
 257err_free_3:
 258        gpio_free(POODLE_GPIO_SD_PWR);
 259err_free_2:
 260        return err;
 261}
 262
 263static int poodle_mci_setpower(struct device *dev, unsigned int vdd)
 264{
 265        struct pxamci_platform_data* p_d = dev->platform_data;
 266
 267        if ((1 << vdd) & p_d->ocr_mask) {
 268                gpio_set_value(POODLE_GPIO_SD_PWR, 1);
 269                mdelay(2);
 270                gpio_set_value(POODLE_GPIO_SD_PWR1, 1);
 271        } else {
 272                gpio_set_value(POODLE_GPIO_SD_PWR1, 0);
 273                gpio_set_value(POODLE_GPIO_SD_PWR, 0);
 274        }
 275
 276        return 0;
 277}
 278
 279static void poodle_mci_exit(struct device *dev, void *data)
 280{
 281        gpio_free(POODLE_GPIO_SD_PWR1);
 282        gpio_free(POODLE_GPIO_SD_PWR);
 283}
 284
 285static struct pxamci_platform_data poodle_mci_platform_data = {
 286        .detect_delay_ms        = 250,
 287        .ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
 288        .init                   = poodle_mci_init,
 289        .setpower               = poodle_mci_setpower,
 290        .exit                   = poodle_mci_exit,
 291        .gpio_card_detect       = POODLE_GPIO_nSD_DETECT,
 292        .gpio_card_ro           = POODLE_GPIO_nSD_WP,
 293        .gpio_power             = -1,
 294};
 295
 296
 297/*
 298 * Irda
 299 */
 300static struct pxaficp_platform_data poodle_ficp_platform_data = {
 301        .gpio_pwdown            = POODLE_GPIO_IR_ON,
 302        .transceiver_cap        = IR_SIRMODE | IR_OFF,
 303};
 304
 305
 306/*
 307 * USB Device Controller
 308 */
 309static struct pxa2xx_udc_mach_info udc_info __initdata = {
 310        /* no connect GPIO; poodle can't tell connection status */
 311        .gpio_pullup    = POODLE_GPIO_USB_PULLUP,
 312};
 313
 314
 315/* PXAFB device */
 316static struct pxafb_mode_info poodle_fb_mode = {
 317        .pixclock       = 144700,
 318        .xres           = 320,
 319        .yres           = 240,
 320        .bpp            = 16,
 321        .hsync_len      = 7,
 322        .left_margin    = 11,
 323        .right_margin   = 30,
 324        .vsync_len      = 2,
 325        .upper_margin   = 2,
 326        .lower_margin   = 0,
 327        .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 328};
 329
 330static struct pxafb_mach_info poodle_fb_info = {
 331        .modes          = &poodle_fb_mode,
 332        .num_modes      = 1,
 333        .lcd_conn       = LCD_COLOR_TFT_16BPP,
 334};
 335
 336static struct mtd_partition sharpsl_nand_partitions[] = {
 337        {
 338                .name = "System Area",
 339                .offset = 0,
 340                .size = 7 * 1024 * 1024,
 341        },
 342        {
 343                .name = "Root Filesystem",
 344                .offset = 7 * 1024 * 1024,
 345                .size = 22 * 1024 * 1024,
 346        },
 347        {
 348                .name = "Home Filesystem",
 349                .offset = MTDPART_OFS_APPEND,
 350                .size = MTDPART_SIZ_FULL,
 351        },
 352};
 353
 354static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
 355
 356static struct nand_bbt_descr sharpsl_bbt = {
 357        .options = 0,
 358        .offs = 4,
 359        .len = 2,
 360        .pattern = scan_ff_pattern
 361};
 362
 363static struct sharpsl_nand_platform_data sharpsl_nand_platform_data = {
 364        .badblock_pattern       = &sharpsl_bbt,
 365        .partitions             = sharpsl_nand_partitions,
 366        .nr_partitions          = ARRAY_SIZE(sharpsl_nand_partitions),
 367};
 368
 369static struct resource sharpsl_nand_resources[] = {
 370        {
 371                .start  = 0x0C000000,
 372                .end    = 0x0C000FFF,
 373                .flags  = IORESOURCE_MEM,
 374        },
 375};
 376
 377static struct platform_device sharpsl_nand_device = {
 378        .name           = "sharpsl-nand",
 379        .id             = -1,
 380        .resource       = sharpsl_nand_resources,
 381        .num_resources  = ARRAY_SIZE(sharpsl_nand_resources),
 382        .dev.platform_data      = &sharpsl_nand_platform_data,
 383};
 384
 385static struct mtd_partition sharpsl_rom_parts[] = {
 386        {
 387                .name   ="Boot PROM Filesystem",
 388                .offset = 0x00120000,
 389                .size   = MTDPART_SIZ_FULL,
 390        },
 391};
 392
 393static struct physmap_flash_data sharpsl_rom_data = {
 394        .width          = 2,
 395        .nr_parts       = ARRAY_SIZE(sharpsl_rom_parts),
 396        .parts          = sharpsl_rom_parts,
 397};
 398
 399static struct resource sharpsl_rom_resources[] = {
 400        {
 401                .start  = 0x00000000,
 402                .end    = 0x007fffff,
 403                .flags  = IORESOURCE_MEM,
 404        },
 405};
 406
 407static struct platform_device sharpsl_rom_device = {
 408        .name   = "physmap-flash",
 409        .id     = -1,
 410        .resource = sharpsl_rom_resources,
 411        .num_resources = ARRAY_SIZE(sharpsl_rom_resources),
 412        .dev.platform_data = &sharpsl_rom_data,
 413};
 414
 415static struct platform_device *devices[] __initdata = {
 416        &poodle_locomo_device,
 417        &poodle_scoop_device,
 418        &poodle_audio_device,
 419        &sharpsl_nand_device,
 420        &sharpsl_rom_device,
 421};
 422
 423static struct i2c_board_info __initdata poodle_i2c_devices[] = {
 424        { I2C_BOARD_INFO("wm8731", 0x1b) },
 425};
 426
 427static void poodle_poweroff(void)
 428{
 429        pxa_restart(REBOOT_HARD, NULL);
 430}
 431
 432static void __init poodle_init(void)
 433{
 434        int ret = 0;
 435
 436        pm_power_off = poodle_poweroff;
 437
 438        PCFR |= PCFR_OPDE;
 439
 440        pxa2xx_mfp_config(ARRAY_AND_SIZE(poodle_pin_config));
 441
 442        pxa_set_ffuart_info(NULL);
 443        pxa_set_btuart_info(NULL);
 444        pxa_set_stuart_info(NULL);
 445
 446        platform_scoop_config = &poodle_pcmcia_config;
 447
 448        ret = platform_add_devices(devices, ARRAY_SIZE(devices));
 449        if (ret)
 450                pr_warn("poodle: Unable to register LoCoMo device\n");
 451
 452        pxa_set_fb_info(&poodle_locomo_device.dev, &poodle_fb_info);
 453        pxa_set_udc_info(&udc_info);
 454        pxa_set_mci_info(&poodle_mci_platform_data);
 455        pxa_set_ficp_info(&poodle_ficp_platform_data);
 456        pxa_set_i2c_info(NULL);
 457        i2c_register_board_info(0, ARRAY_AND_SIZE(poodle_i2c_devices));
 458        poodle_init_spi();
 459        regulator_has_full_constraints();
 460}
 461
 462static void __init fixup_poodle(struct tag *tags, char **cmdline)
 463{
 464        sharpsl_save_param();
 465        memblock_add(0xa0000000, SZ_32M);
 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