kernel/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/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 <mach/pxa25x.h>
  45 #include <linux/platform_data/mmc-pxamci.h>
  46 #include <mach/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
  58 static 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
 121 static struct resource poodle_scoop_resources[] = {
 122         [0] = {
 123                 .start          = 0x10800000,
 124                 .end            = 0x10800fff,
 125                 .flags          = IORESOURCE_MEM,
 126         },
 127 };
 128
 129 static 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
 135 struct 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
 145 static 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
 154 static struct scoop_pcmcia_config poodle_pcmcia_config = {
 155         .devs         = &poodle_pcmcia_scoop[0],
 156         .num_devs     = 1,
 157 };
 158
 159 EXPORT_SYMBOL(poodle_scoop_device);
 160
 161
 162 static struct platform_device poodle_audio_device = {
 163         .name   = "poodle-audio",
 164         .id     = -1,
 165 };
 166
 167 /* LoCoMo device */
 168 static 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
 181 static struct locomo_platform_data locomo_info = {
 182         .irq_base       = IRQ_BOARD_START,
 183 };
 184
 185 struct 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
 195 EXPORT_SYMBOL(poodle_locomo_device);
 196
 197 #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
 198 static struct pxa2xx_spi_master poodle_spi_info = {
 199         .num_chipselect = 1,
 200 };
 201
 202 static 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
 210 static struct pxa2xx_spi_chip poodle_ads7846_chip = {
 211         .gpio_cs                = POODLE_GPIO_TP_CS,
 212 };
 213
 214 static 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
 225 static 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
 231 static 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  */
 240 static 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
 257 err_free_3:
 258         gpio_free(POODLE_GPIO_SD_PWR);
 259 err_free_2:
 260         return err;
 261 }
 262
 263 static 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
 279 static 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
 285 static 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  */
 300 static 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  */
 309 static 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 */
 316 static 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
 330 static 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
 336 static 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
 354 static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
 355
 356 static struct nand_bbt_descr sharpsl_bbt = {
 357         .options = 0,
 358         .offs = 4,
 359         .len = 2,
 360         .pattern = scan_ff_pattern
 361 };
 362
 363 static 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
 369 static struct resource sharpsl_nand_resources[] = {
 370         {
 371                 .start  = 0x0C000000,
 372                 .end    = 0x0C000FFF,
 373                 .flags  = IORESOURCE_MEM,
 374         },
 375 };
 376
 377 static 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
 385 static struct mtd_partition sharpsl_rom_parts[] = {
 386         {
 387                 .name   ="Boot PROM Filesystem",
 388                 .offset = 0x00120000,
 389                 .size   = MTDPART_SIZ_FULL,
 390         },
 391 };
 392
 393 static 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
 399 static struct resource sharpsl_rom_resources[] = {
 400         {
 401                 .start  = 0x00000000,
 402                 .end    = 0x007fffff,
 403                 .flags  = IORESOURCE_MEM,
 404         },
 405 };
 406
 407 static 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
 415 static 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
 423 static struct i2c_board_info __initdata poodle_i2c_devices[] = {
 424         { I2C_BOARD_INFO("wm8731", 0x1b) },
 425 };
 426
 427 static void poodle_poweroff(void)
 428 {
 429         pxa_restart(REBOOT_HARD, NULL);
 430 }
 431
 432 static 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
 462 static void __init fixup_poodle(struct tag *tags, char **cmdline)
 463 {
 464         sharpsl_save_param();
 465         memblock_add(0xa0000000, SZ_32M);
 466 }
 467
 468 MACHINE_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,
 477 MACHINE_END