arch/arm/mach-pxa/poodle.c

   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/gpio/machine.h>
  27 #include <linux/i2c.h>
  28 #include <linux/platform_data/i2c-pxa.h>
  29 #include <linux/regulator/machine.h>
  30 #include <linux/spi/spi.h>
  31 #include <linux/spi/ads7846.h>
  32 #include <linux/spi/pxa2xx_spi.h>
  33 #include <linux/mtd/sharpsl.h>
  34 #include <linux/memblock.h>
  35
  36 #include <mach/hardware.h>
  37 #include <asm/mach-types.h>
  38 #include <asm/irq.h>
  39 #include <asm/setup.h>
  40
  41 #include <asm/mach/arch.h>
  42 #include <asm/mach/map.h>
  43 #include <asm/mach/irq.h>
  44
  45 #include "pxa25x.h"
  46 #include <linux/platform_data/mmc-pxamci.h>
  47 #include "udc.h"
  48 #include <linux/platform_data/irda-pxaficp.h>
  49 #include <mach/poodle.h>
  50 #include <linux/platform_data/video-pxafb.h>
  51
  52 #include <asm/hardware/scoop.h>
  53 #include <asm/hardware/locomo.h>
  54 #include <asm/mach/sharpsl_param.h>
  55
  56 #include "generic.h"
  57 #include "devices.h"
  58
  59 static unsigned long poodle_pin_config[] __initdata = {
  60         /* I/O */
  61         GPIO79_nCS_3,
  62         GPIO80_nCS_4,
  63         GPIO18_RDY,
  64
  65         /* Clock */
  66         GPIO12_32KHz,
  67
  68         /* SSP1 */
  69         GPIO23_SSP1_SCLK,
  70         GPIO25_SSP1_TXD,
  71         GPIO26_SSP1_RXD,
  72         GPIO24_GPIO,    /* POODLE_GPIO_TP_CS - SFRM as chip select */
  73
  74         /* I2S */
  75         GPIO28_I2S_BITCLK_OUT,
  76         GPIO29_I2S_SDATA_IN,
  77         GPIO30_I2S_SDATA_OUT,
  78         GPIO31_I2S_SYNC,
  79         GPIO32_I2S_SYSCLK,
  80
  81         /* Infra-Red */
  82         GPIO47_FICP_TXD,
  83         GPIO46_FICP_RXD,
  84
  85         /* FFUART */
  86         GPIO40_FFUART_DTR,
  87         GPIO41_FFUART_RTS,
  88         GPIO39_FFUART_TXD,
  89         GPIO37_FFUART_DSR,
  90         GPIO34_FFUART_RXD,
  91         GPIO35_FFUART_CTS,
  92
  93         /* LCD */
  94         GPIOxx_LCD_TFT_16BPP,
  95
  96         /* PC Card */
  97         GPIO48_nPOE,
  98         GPIO49_nPWE,
  99         GPIO50_nPIOR,
 100         GPIO51_nPIOW,
 101         GPIO52_nPCE_1,
 102         GPIO53_nPCE_2,
 103         GPIO54_nPSKTSEL,
 104         GPIO55_nPREG,
 105         GPIO56_nPWAIT,
 106         GPIO57_nIOIS16,
 107
 108         /* MMC */
 109         GPIO6_MMC_CLK,
 110         GPIO8_MMC_CS0,
 111
 112         /* GPIO */
 113         GPIO9_GPIO,     /* POODLE_GPIO_nSD_DETECT */
 114         GPIO7_GPIO,     /* POODLE_GPIO_nSD_WP */
 115         GPIO3_GPIO,     /* POODLE_GPIO_SD_PWR */
 116         GPIO33_GPIO,    /* POODLE_GPIO_SD_PWR1 */
 117
 118         GPIO20_GPIO,    /* POODLE_GPIO_USB_PULLUP */
 119         GPIO22_GPIO,    /* POODLE_GPIO_IR_ON */
 120 };
 121
 122 static struct resource poodle_scoop_resources[] = {
 123         [0] = {
 124                 .start          = 0x10800000,
 125                 .end            = 0x10800fff,
 126                 .flags          = IORESOURCE_MEM,
 127         },
 128 };
 129
 130 static struct scoop_config poodle_scoop_setup = {
 131         .io_dir         = POODLE_SCOOP_IO_DIR,
 132         .io_out         = POODLE_SCOOP_IO_OUT,
 133         .gpio_base      = POODLE_SCOOP_GPIO_BASE,
 134 };
 135
 136 struct platform_device poodle_scoop_device = {
 137         .name           = "sharp-scoop",
 138         .id             = -1,
 139         .dev            = {
 140                 .platform_data  = &poodle_scoop_setup,
 141         },
 142         .num_resources  = ARRAY_SIZE(poodle_scoop_resources),
 143         .resource       = poodle_scoop_resources,
 144 };
 145
 146 static struct scoop_pcmcia_dev poodle_pcmcia_scoop[] = {
 147 {
 148         .dev        = &poodle_scoop_device.dev,
 149         .irq        = POODLE_IRQ_GPIO_CF_IRQ,
 150         .cd_irq     = POODLE_IRQ_GPIO_CF_CD,
 151         .cd_irq_str = "PCMCIA0 CD",
 152 },
 153 };
 154
 155 static struct scoop_pcmcia_config poodle_pcmcia_config = {
 156         .devs         = &poodle_pcmcia_scoop[0],
 157         .num_devs     = 1,
 158 };
 159
 160 EXPORT_SYMBOL(poodle_scoop_device);
 161
 162
 163 static struct platform_device poodle_audio_device = {
 164         .name   = "poodle-audio",
 165         .id     = -1,
 166 };
 167
 168 /* LoCoMo device */
 169 static struct resource locomo_resources[] = {
 170         [0] = {
 171                 .start          = 0x10000000,
 172                 .end            = 0x10001fff,
 173                 .flags          = IORESOURCE_MEM,
 174         },
 175         [1] = {
 176                 .start          = PXA_GPIO_TO_IRQ(10),
 177                 .end            = PXA_GPIO_TO_IRQ(10),
 178                 .flags          = IORESOURCE_IRQ,
 179         },
 180 };
 181
 182 static struct locomo_platform_data locomo_info = {
 183         .irq_base       = IRQ_BOARD_START,
 184 };
 185
 186 struct platform_device poodle_locomo_device = {
 187         .name           = "locomo",
 188         .id             = 0,
 189         .num_resources  = ARRAY_SIZE(locomo_resources),
 190         .resource       = locomo_resources,
 191         .dev            = {
 192                 .platform_data  = &locomo_info,
 193         },
 194 };
 195
 196 EXPORT_SYMBOL(poodle_locomo_device);
 197
 198 #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
 199 static struct pxa2xx_spi_controller poodle_spi_info = {
 200         .num_chipselect = 1,
 201 };
 202
 203 static struct ads7846_platform_data poodle_ads7846_info = {
 204         .model                  = 7846,
 205         .vref_delay_usecs       = 100,
 206         .x_plate_ohms           = 419,
 207         .y_plate_ohms           = 486,
 208         .gpio_pendown           = POODLE_GPIO_TP_INT,
 209 };
 210
 211 static struct pxa2xx_spi_chip poodle_ads7846_chip = {
 212         .gpio_cs                = POODLE_GPIO_TP_CS,
 213 };
 214
 215 static struct spi_board_info poodle_spi_devices[] = {
 216         {
 217                 .modalias       = "ads7846",
 218                 .max_speed_hz   = 10000,
 219                 .bus_num        = 1,
 220                 .platform_data  = &poodle_ads7846_info,
 221                 .controller_data= &poodle_ads7846_chip,
 222                 .irq            = PXA_GPIO_TO_IRQ(POODLE_GPIO_TP_INT),
 223         },
 224 };
 225
 226 static void __init poodle_init_spi(void)
 227 {
 228         pxa2xx_set_spi_info(1, &poodle_spi_info);
 229         spi_register_board_info(ARRAY_AND_SIZE(poodle_spi_devices));
 230 }
 231 #else
 232 static inline void poodle_init_spi(void) {}
 233 #endif
 234
 235 /*
 236  * MMC/SD Device
 237  *
 238  * The card detect interrupt isn't debounced so we delay it by 250ms
 239  * to give the card a chance to fully insert/eject.
 240  */
 241 static int poodle_mci_init(struct device *dev, irq_handler_t poodle_detect_int, void *data)
 242 {
 243         int err;
 244
 245         err = gpio_request(POODLE_GPIO_SD_PWR, "SD_PWR");
 246         if (err)
 247                 goto err_free_2;
 248
 249         err = gpio_request(POODLE_GPIO_SD_PWR1, "SD_PWR1");
 250         if (err)
 251                 goto err_free_3;
 252
 253         gpio_direction_output(POODLE_GPIO_SD_PWR, 0);
 254         gpio_direction_output(POODLE_GPIO_SD_PWR1, 0);
 255
 256         return 0;
 257
 258 err_free_3:
 259         gpio_free(POODLE_GPIO_SD_PWR);
 260 err_free_2:
 261         return err;
 262 }
 263
 264 static int poodle_mci_setpower(struct device *dev, unsigned int vdd)
 265 {
 266         struct pxamci_platform_data* p_d = dev->platform_data;
 267
 268         if ((1 << vdd) & p_d->ocr_mask) {
 269                 gpio_set_value(POODLE_GPIO_SD_PWR, 1);
 270                 mdelay(2);
 271                 gpio_set_value(POODLE_GPIO_SD_PWR1, 1);
 272         } else {
 273                 gpio_set_value(POODLE_GPIO_SD_PWR1, 0);
 274                 gpio_set_value(POODLE_GPIO_SD_PWR, 0);
 275         }
 276
 277         return 0;
 278 }
 279
 280 static void poodle_mci_exit(struct device *dev, void *data)
 281 {
 282         gpio_free(POODLE_GPIO_SD_PWR1);
 283         gpio_free(POODLE_GPIO_SD_PWR);
 284 }
 285
 286 static struct pxamci_platform_data poodle_mci_platform_data = {
 287         .detect_delay_ms        = 250,
 288         .ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
 289         .init                   = poodle_mci_init,
 290         .setpower               = poodle_mci_setpower,
 291         .exit                   = poodle_mci_exit,
 292 };
 293
 294 static struct gpiod_lookup_table poodle_mci_gpio_table = {
 295         .dev_id = "pxa2xx-mci.0",
 296         .table = {
 297                 GPIO_LOOKUP("gpio-pxa", POODLE_GPIO_nSD_DETECT,
 298                             "cd", GPIO_ACTIVE_LOW),
 299                 GPIO_LOOKUP("gpio-pxa", POODLE_GPIO_nSD_WP,
 300                             "wp", GPIO_ACTIVE_LOW),
 301                 { },
 302         },
 303 };
 304
 305 /*
 306  * Irda
 307  */
 308 static struct pxaficp_platform_data poodle_ficp_platform_data = {
 309         .gpio_pwdown            = POODLE_GPIO_IR_ON,
 310         .transceiver_cap        = IR_SIRMODE | IR_OFF,
 311 };
 312
 313
 314 /*
 315  * USB Device Controller
 316  */
 317 static struct pxa2xx_udc_mach_info udc_info __initdata = {
 318         /* no connect GPIO; poodle can't tell connection status */
 319         .gpio_pullup    = POODLE_GPIO_USB_PULLUP,
 320 };
 321
 322
 323 /* PXAFB device */
 324 static struct pxafb_mode_info poodle_fb_mode = {
 325         .pixclock       = 144700,
 326         .xres           = 320,
 327         .yres           = 240,
 328         .bpp            = 16,
 329         .hsync_len      = 7,
 330         .left_margin    = 11,
 331         .right_margin   = 30,
 332         .vsync_len      = 2,
 333         .upper_margin   = 2,
 334         .lower_margin   = 0,
 335         .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 336 };
 337
 338 static struct pxafb_mach_info poodle_fb_info = {
 339         .modes          = &poodle_fb_mode,
 340         .num_modes      = 1,
 341         .lcd_conn       = LCD_COLOR_TFT_16BPP,
 342 };
 343
 344 static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
 345
 346 static struct nand_bbt_descr sharpsl_bbt = {
 347         .options = 0,
 348         .offs = 4,
 349         .len = 2,
 350         .pattern = scan_ff_pattern
 351 };
 352
 353 static const char * const probes[] = {
 354         "cmdlinepart",
 355         "ofpart",
 356         "sharpslpart",
 357         NULL,
 358 };
 359
 360 static struct sharpsl_nand_platform_data sharpsl_nand_platform_data = {
 361         .badblock_pattern       = &sharpsl_bbt,
 362         .part_parsers           = probes,
 363 };
 364
 365 static struct resource sharpsl_nand_resources[] = {
 366         {
 367                 .start  = 0x0C000000,
 368                 .end    = 0x0C000FFF,
 369                 .flags  = IORESOURCE_MEM,
 370         },
 371 };
 372
 373 static struct platform_device sharpsl_nand_device = {
 374         .name           = "sharpsl-nand",
 375         .id             = -1,
 376         .resource       = sharpsl_nand_resources,
 377         .num_resources  = ARRAY_SIZE(sharpsl_nand_resources),
 378         .dev.platform_data      = &sharpsl_nand_platform_data,
 379 };
 380
 381 static struct mtd_partition sharpsl_rom_parts[] = {
 382         {
 383                 .name   ="Boot PROM Filesystem",
 384                 .offset = 0x00120000,
 385                 .size   = MTDPART_SIZ_FULL,
 386         },
 387 };
 388
 389 static struct physmap_flash_data sharpsl_rom_data = {
 390         .width          = 2,
 391         .nr_parts       = ARRAY_SIZE(sharpsl_rom_parts),
 392         .parts          = sharpsl_rom_parts,
 393 };
 394
 395 static struct resource sharpsl_rom_resources[] = {
 396         {
 397                 .start  = 0x00000000,
 398                 .end    = 0x007fffff,
 399                 .flags  = IORESOURCE_MEM,
 400         },
 401 };
 402
 403 static struct platform_device sharpsl_rom_device = {
 404         .name   = "physmap-flash",
 405         .id     = -1,
 406         .resource = sharpsl_rom_resources,
 407         .num_resources = ARRAY_SIZE(sharpsl_rom_resources),
 408         .dev.platform_data = &sharpsl_rom_data,
 409 };
 410
 411 static struct platform_device *devices[] __initdata = {
 412         &poodle_locomo_device,
 413         &poodle_scoop_device,
 414         &poodle_audio_device,
 415         &sharpsl_nand_device,
 416         &sharpsl_rom_device,
 417 };
 418
 419 static struct i2c_board_info __initdata poodle_i2c_devices[] = {
 420         { I2C_BOARD_INFO("wm8731", 0x1b) },
 421 };
 422
 423 static void poodle_poweroff(void)
 424 {
 425         pxa_restart(REBOOT_HARD, NULL);
 426 }
 427
 428 static void __init poodle_init(void)
 429 {
 430         int ret = 0;
 431
 432         pm_power_off = poodle_poweroff;
 433
 434         PCFR |= PCFR_OPDE;
 435
 436         pxa2xx_mfp_config(ARRAY_AND_SIZE(poodle_pin_config));
 437
 438         pxa_set_ffuart_info(NULL);
 439         pxa_set_btuart_info(NULL);
 440         pxa_set_stuart_info(NULL);
 441
 442         platform_scoop_config = &poodle_pcmcia_config;
 443
 444         ret = platform_add_devices(devices, ARRAY_SIZE(devices));
 445         if (ret)
 446                 pr_warn("poodle: Unable to register LoCoMo device\n");
 447
 448         pxa_set_fb_info(&poodle_locomo_device.dev, &poodle_fb_info);
 449         pxa_set_udc_info(&udc_info);
 450         gpiod_add_lookup_table(&poodle_mci_gpio_table);
 451         pxa_set_mci_info(&poodle_mci_platform_data);
 452         pxa_set_ficp_info(&poodle_ficp_platform_data);
 453         pxa_set_i2c_info(NULL);
 454         i2c_register_board_info(0, ARRAY_AND_SIZE(poodle_i2c_devices));
 455         poodle_init_spi();
 456         regulator_has_full_constraints();
 457 }
 458
 459 static void __init fixup_poodle(struct tag *tags, char **cmdline)
 460 {
 461         sharpsl_save_param();
 462         memblock_add(0xa0000000, SZ_32M);
 463 }
 464
 465 MACHINE_START(POODLE, "SHARP Poodle")
 466         .fixup          = fixup_poodle,
 467         .map_io         = pxa25x_map_io,
 468         .nr_irqs        = POODLE_NR_IRQS,       /* 4 for LoCoMo */
 469         .init_irq       = pxa25x_init_irq,
 470         .handle_irq     = pxa25x_handle_irq,
 471         .init_time      = pxa_timer_init,
 472         .init_machine   = poodle_init,
 473         .restart        = pxa_restart,
 474 MACHINE_END