kernel/2.6.29.6-aldebaran-rt/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/platform_device.h>
  20 #include <linux/fb.h>
  21 #include <linux/pm.h>
  22 #include <linux/delay.h>
  23 #include <linux/mtd/physmap.h>
  24 #include <linux/gpio.h>
  25 #include <linux/spi/spi.h>
  26 #include <linux/spi/ads7846.h>
  27 #include <linux/mtd/sharpsl.h>
  28
  29 #include <mach/hardware.h>
  30 #include <asm/mach-types.h>
  31 #include <asm/irq.h>
  32 #include <asm/setup.h>
  33 #include <asm/system.h>
  34
  35 #include <asm/mach/arch.h>
  36 #include <asm/mach/map.h>
  37 #include <asm/mach/irq.h>
  38
  39 #include <mach/pxa-regs.h>
  40 #include <mach/pxa2xx-regs.h>
  41 #include <mach/mfp-pxa25x.h>
  42 #include <mach/mmc.h>
  43 #include <mach/udc.h>
  44 #include <mach/i2c.h>
  45 #include <mach/irda.h>
  46 #include <mach/poodle.h>
  47 #include <mach/pxafb.h>
  48 #include <mach/sharpsl.h>
  49 #include <mach/ssp.h>
  50 #include <mach/pxa2xx_spi.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 #include "sharpsl.h"
  59
  60 static unsigned long poodle_pin_config[] __initdata = {
  61         /* I/O */
  62         GPIO79_nCS_3,
  63         GPIO80_nCS_4,
  64         GPIO18_RDY,
  65
  66         /* Clock */
  67         GPIO12_32KHz,
  68
  69         /* SSP1 */
  70         GPIO23_SSP1_SCLK,
  71         GPIO25_SSP1_TXD,
  72         GPIO26_SSP1_RXD,
  73         GPIO24_GPIO,    /* POODLE_GPIO_TP_CS - SFRM as chip select */
  74
  75         /* I2S */
  76         GPIO28_I2S_BITCLK_OUT,
  77         GPIO29_I2S_SDATA_IN,
  78         GPIO30_I2S_SDATA_OUT,
  79         GPIO31_I2S_SYNC,
  80         GPIO32_I2S_SYSCLK,
  81
  82         /* Infra-Red */
  83         GPIO47_FICP_TXD,
  84         GPIO46_FICP_RXD,
  85
  86         /* FFUART */
  87         GPIO40_FFUART_DTR,
  88         GPIO41_FFUART_RTS,
  89         GPIO39_FFUART_TXD,
  90         GPIO37_FFUART_DSR,
  91         GPIO34_FFUART_RXD,
  92         GPIO35_FFUART_CTS,
  93
  94         /* LCD */
  95         GPIO58_LCD_LDD_0,
  96         GPIO59_LCD_LDD_1,
  97         GPIO60_LCD_LDD_2,
  98         GPIO61_LCD_LDD_3,
  99         GPIO62_LCD_LDD_4,
 100         GPIO63_LCD_LDD_5,
 101         GPIO64_LCD_LDD_6,
 102         GPIO65_LCD_LDD_7,
 103         GPIO66_LCD_LDD_8,
 104         GPIO67_LCD_LDD_9,
 105         GPIO68_LCD_LDD_10,
 106         GPIO69_LCD_LDD_11,
 107         GPIO70_LCD_LDD_12,
 108         GPIO71_LCD_LDD_13,
 109         GPIO72_LCD_LDD_14,
 110         GPIO73_LCD_LDD_15,
 111         GPIO74_LCD_FCLK,
 112         GPIO75_LCD_LCLK,
 113         GPIO76_LCD_PCLK,
 114         GPIO77_LCD_BIAS,
 115
 116         /* PC Card */
 117         GPIO48_nPOE,
 118         GPIO49_nPWE,
 119         GPIO50_nPIOR,
 120         GPIO51_nPIOW,
 121         GPIO52_nPCE_1,
 122         GPIO53_nPCE_2,
 123         GPIO54_nPSKTSEL,
 124         GPIO55_nPREG,
 125         GPIO56_nPWAIT,
 126         GPIO57_nIOIS16,
 127
 128         /* MMC */
 129         GPIO6_MMC_CLK,
 130         GPIO8_MMC_CS0,
 131
 132         /* GPIO */
 133         GPIO9_GPIO,     /* POODLE_GPIO_nSD_DETECT */
 134         GPIO7_GPIO,     /* POODLE_GPIO_nSD_WP */
 135         GPIO3_GPIO,     /* POODLE_GPIO_SD_PWR */
 136         GPIO33_GPIO,    /* POODLE_GPIO_SD_PWR1 */
 137
 138         GPIO20_GPIO,    /* POODLE_GPIO_USB_PULLUP */
 139         GPIO22_GPIO,    /* POODLE_GPIO_IR_ON */
 140 };
 141
 142 static struct resource poodle_scoop_resources[] = {
 143         [0] = {
 144                 .start          = 0x10800000,
 145                 .end            = 0x10800fff,
 146                 .flags          = IORESOURCE_MEM,
 147         },
 148 };
 149
 150 static struct scoop_config poodle_scoop_setup = {
 151         .io_dir         = POODLE_SCOOP_IO_DIR,
 152         .io_out         = POODLE_SCOOP_IO_OUT,
 153         .gpio_base      = POODLE_SCOOP_GPIO_BASE,
 154 };
 155
 156 struct platform_device poodle_scoop_device = {
 157         .name           = "sharp-scoop",
 158         .id             = -1,
 159         .dev            = {
 160                 .platform_data  = &poodle_scoop_setup,
 161         },
 162         .num_resources  = ARRAY_SIZE(poodle_scoop_resources),
 163         .resource       = poodle_scoop_resources,
 164 };
 165
 166 static struct scoop_pcmcia_dev poodle_pcmcia_scoop[] = {
 167 {
 168         .dev        = &poodle_scoop_device.dev,
 169         .irq        = POODLE_IRQ_GPIO_CF_IRQ,
 170         .cd_irq     = POODLE_IRQ_GPIO_CF_CD,
 171         .cd_irq_str = "PCMCIA0 CD",
 172 },
 173 };
 174
 175 static struct scoop_pcmcia_config poodle_pcmcia_config = {
 176         .devs         = &poodle_pcmcia_scoop[0],
 177         .num_devs     = 1,
 178 };
 179
 180 EXPORT_SYMBOL(poodle_scoop_device);
 181
 182
 183 /* LoCoMo device */
 184 static struct resource locomo_resources[] = {
 185         [0] = {
 186                 .start          = 0x10000000,
 187                 .end            = 0x10001fff,
 188                 .flags          = IORESOURCE_MEM,
 189         },
 190         [1] = {
 191                 .start          = IRQ_GPIO(10),
 192                 .end            = IRQ_GPIO(10),
 193                 .flags          = IORESOURCE_IRQ,
 194         },
 195 };
 196
 197 struct platform_device poodle_locomo_device = {
 198         .name           = "locomo",
 199         .id             = 0,
 200         .num_resources  = ARRAY_SIZE(locomo_resources),
 201         .resource       = locomo_resources,
 202 };
 203
 204 EXPORT_SYMBOL(poodle_locomo_device);
 205
 206 #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
 207 static struct pxa2xx_spi_master poodle_spi_info = {
 208         .num_chipselect = 1,
 209 };
 210
 211 static struct ads7846_platform_data poodle_ads7846_info = {
 212         .model                  = 7846,
 213         .vref_delay_usecs       = 100,
 214         .x_plate_ohms           = 419,
 215         .y_plate_ohms           = 486,
 216         .gpio_pendown           = POODLE_GPIO_TP_INT,
 217 };
 218
 219 static void ads7846_cs(u32 command)
 220 {
 221         gpio_set_value(POODLE_GPIO_TP_CS, !(command == PXA2XX_CS_ASSERT));
 222 }
 223
 224 static struct pxa2xx_spi_chip poodle_ads7846_chip = {
 225         .cs_control             = ads7846_cs,
 226 };
 227
 228 static struct spi_board_info poodle_spi_devices[] = {
 229         {
 230                 .modalias       = "ads7846",
 231                 .max_speed_hz   = 10000,
 232                 .bus_num        = 1,
 233                 .platform_data  = &poodle_ads7846_info,
 234                 .controller_data= &poodle_ads7846_chip,
 235                 .irq            = gpio_to_irq(POODLE_GPIO_TP_INT),
 236         },
 237 };
 238
 239 static void __init poodle_init_spi(void)
 240 {
 241         int err;
 242
 243         err = gpio_request(POODLE_GPIO_TP_CS, "ADS7846_CS");
 244         if (err)
 245                 return;
 246
 247         gpio_direction_output(POODLE_GPIO_TP_CS, 1);
 248
 249         pxa2xx_set_spi_info(1, &poodle_spi_info);
 250         spi_register_board_info(ARRAY_AND_SIZE(poodle_spi_devices));
 251 }
 252 #else
 253 static inline void poodle_init_spi(void) {}
 254 #endif
 255
 256 /*
 257  * MMC/SD Device
 258  *
 259  * The card detect interrupt isn't debounced so we delay it by 250ms
 260  * to give the card a chance to fully insert/eject.
 261  */
 262 static struct pxamci_platform_data poodle_mci_platform_data;
 263
 264 static int poodle_mci_init(struct device *dev, irq_handler_t poodle_detect_int, void *data)
 265 {
 266         int err;
 267
 268         err = gpio_request(POODLE_GPIO_nSD_DETECT, "nSD_DETECT");
 269         if (err)
 270                 goto err_out;
 271
 272         err = gpio_request(POODLE_GPIO_nSD_WP, "nSD_WP");
 273         if (err)
 274                 goto err_free_1;
 275
 276         err = gpio_request(POODLE_GPIO_SD_PWR, "SD_PWR");
 277         if (err)
 278                 goto err_free_2;
 279
 280         err = gpio_request(POODLE_GPIO_SD_PWR1, "SD_PWR1");
 281         if (err)
 282                 goto err_free_3;
 283
 284         gpio_direction_input(POODLE_GPIO_nSD_DETECT);
 285         gpio_direction_input(POODLE_GPIO_nSD_WP);
 286
 287         gpio_direction_output(POODLE_GPIO_SD_PWR, 0);
 288         gpio_direction_output(POODLE_GPIO_SD_PWR1, 0);
 289
 290         poodle_mci_platform_data.detect_delay = msecs_to_jiffies(250);
 291
 292         err = request_irq(POODLE_IRQ_GPIO_nSD_DETECT, poodle_detect_int,
 293                           IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 294                           "MMC card detect", data);
 295         if (err) {
 296                 pr_err("%s: MMC/SD: can't request MMC card detect IRQ\n",
 297                                 __func__);
 298                 goto err_free_4;
 299         }
 300
 301         return 0;
 302
 303 err_free_4:
 304         gpio_free(POODLE_GPIO_SD_PWR1);
 305 err_free_3:
 306         gpio_free(POODLE_GPIO_SD_PWR);
 307 err_free_2:
 308         gpio_free(POODLE_GPIO_nSD_WP);
 309 err_free_1:
 310         gpio_free(POODLE_GPIO_nSD_DETECT);
 311 err_out:
 312         return err;
 313 }
 314
 315 static void poodle_mci_setpower(struct device *dev, unsigned int vdd)
 316 {
 317         struct pxamci_platform_data* p_d = dev->platform_data;
 318
 319         if ((1 << vdd) & p_d->ocr_mask) {
 320                 gpio_set_value(POODLE_GPIO_SD_PWR, 1);
 321                 mdelay(2);
 322                 gpio_set_value(POODLE_GPIO_SD_PWR1, 1);
 323         } else {
 324                 gpio_set_value(POODLE_GPIO_SD_PWR1, 0);
 325                 gpio_set_value(POODLE_GPIO_SD_PWR, 0);
 326         }
 327 }
 328
 329 static int poodle_mci_get_ro(struct device *dev)
 330 {
 331         return !!gpio_get_value(POODLE_GPIO_nSD_WP);
 332         return GPLR(POODLE_GPIO_nSD_WP) & GPIO_bit(POODLE_GPIO_nSD_WP);
 333 }
 334
 335
 336 static void poodle_mci_exit(struct device *dev, void *data)
 337 {
 338         free_irq(POODLE_IRQ_GPIO_nSD_DETECT, data);
 339         gpio_free(POODLE_GPIO_SD_PWR1);
 340         gpio_free(POODLE_GPIO_SD_PWR);
 341         gpio_free(POODLE_GPIO_nSD_WP);
 342         gpio_free(POODLE_GPIO_nSD_DETECT);
 343 }
 344
 345 static struct pxamci_platform_data poodle_mci_platform_data = {
 346         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 347         .init           = poodle_mci_init,
 348         .get_ro         = poodle_mci_get_ro,
 349         .setpower       = poodle_mci_setpower,
 350         .exit           = poodle_mci_exit,
 351 };
 352
 353
 354 /*
 355  * Irda
 356  */
 357 static void poodle_irda_transceiver_mode(struct device *dev, int mode)
 358 {
 359         gpio_set_value(POODLE_GPIO_IR_ON, mode & IR_OFF);
 360         pxa2xx_transceiver_mode(dev, mode);
 361 }
 362
 363 static int poodle_irda_startup(struct device *dev)
 364 {
 365         int err;
 366
 367         err = gpio_request(POODLE_GPIO_IR_ON, "IR_ON");
 368         if (err)
 369                 return err;
 370
 371         gpio_direction_output(POODLE_GPIO_IR_ON, 1);
 372         return 0;
 373 }
 374
 375 static void poodle_irda_shutdown(struct device *dev)
 376 {
 377         gpio_free(POODLE_GPIO_IR_ON);
 378 }
 379
 380 static struct pxaficp_platform_data poodle_ficp_platform_data = {
 381         .transceiver_cap        = IR_SIRMODE | IR_OFF,
 382         .transceiver_mode       = poodle_irda_transceiver_mode,
 383         .startup                = poodle_irda_startup,
 384         .shutdown               = poodle_irda_shutdown,
 385 };
 386
 387
 388 /*
 389  * USB Device Controller
 390  */
 391 static struct pxa2xx_udc_mach_info udc_info __initdata = {
 392         /* no connect GPIO; poodle can't tell connection status */
 393         .gpio_pullup    = POODLE_GPIO_USB_PULLUP,
 394 };
 395
 396
 397 /* PXAFB device */
 398 static struct pxafb_mode_info poodle_fb_mode = {
 399         .pixclock       = 144700,
 400         .xres           = 320,
 401         .yres           = 240,
 402         .bpp            = 16,
 403         .hsync_len      = 7,
 404         .left_margin    = 11,
 405         .right_margin   = 30,
 406         .vsync_len      = 2,
 407         .upper_margin   = 2,
 408         .lower_margin   = 0,
 409         .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 410 };
 411
 412 static struct pxafb_mach_info poodle_fb_info = {
 413         .modes          = &poodle_fb_mode,
 414         .num_modes      = 1,
 415         .lcd_conn       = LCD_COLOR_TFT_16BPP,
 416 };
 417
 418 static struct mtd_partition sharpsl_nand_partitions[] = {
 419         {
 420                 .name = "System Area",
 421                 .offset = 0,
 422                 .size = 7 * 1024 * 1024,
 423         },
 424         {
 425                 .name = "Root Filesystem",
 426                 .offset = 7 * 1024 * 1024,
 427                 .size = 22 * 1024 * 1024,
 428         },
 429         {
 430                 .name = "Home Filesystem",
 431                 .offset = MTDPART_OFS_APPEND,
 432                 .size = MTDPART_SIZ_FULL,
 433         },
 434 };
 435
 436 static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
 437
 438 static struct nand_bbt_descr sharpsl_bbt = {
 439         .options = 0,
 440         .offs = 4,
 441         .len = 2,
 442         .pattern = scan_ff_pattern
 443 };
 444
 445 static struct sharpsl_nand_platform_data sharpsl_nand_platform_data = {
 446         .badblock_pattern       = &sharpsl_bbt,
 447         .partitions             = sharpsl_nand_partitions,
 448         .nr_partitions          = ARRAY_SIZE(sharpsl_nand_partitions),
 449 };
 450
 451 static struct resource sharpsl_nand_resources[] = {
 452         {
 453                 .start  = 0x0C000000,
 454                 .end    = 0x0C000FFF,
 455                 .flags  = IORESOURCE_MEM,
 456         },
 457 };
 458
 459 static struct platform_device sharpsl_nand_device = {
 460         .name           = "sharpsl-nand",
 461         .id             = -1,
 462         .resource       = sharpsl_nand_resources,
 463         .num_resources  = ARRAY_SIZE(sharpsl_nand_resources),
 464         .dev.platform_data      = &sharpsl_nand_platform_data,
 465 };
 466
 467 static struct mtd_partition sharpsl_rom_parts[] = {
 468         {
 469                 .name   ="Boot PROM Filesystem",
 470                 .offset = 0x00120000,
 471                 .size   = MTDPART_SIZ_FULL,
 472         },
 473 };
 474
 475 static struct physmap_flash_data sharpsl_rom_data = {
 476         .width          = 2,
 477         .nr_parts       = ARRAY_SIZE(sharpsl_rom_parts),
 478         .parts          = sharpsl_rom_parts,
 479 };
 480
 481 static struct resource sharpsl_rom_resources[] = {
 482         {
 483                 .start  = 0x00000000,
 484                 .end    = 0x007fffff,
 485                 .flags  = IORESOURCE_MEM,
 486         },
 487 };
 488
 489 static struct platform_device sharpsl_rom_device = {
 490         .name   = "physmap-flash",
 491         .id     = -1,
 492         .resource = sharpsl_rom_resources,
 493         .num_resources = ARRAY_SIZE(sharpsl_rom_resources),
 494         .dev.platform_data = &sharpsl_rom_data,
 495 };
 496
 497 static struct platform_device *devices[] __initdata = {
 498         &poodle_locomo_device,
 499         &poodle_scoop_device,
 500         &sharpsl_nand_device,
 501         &sharpsl_rom_device,
 502 };
 503
 504 static void poodle_poweroff(void)
 505 {
 506         arm_machine_restart('h');
 507 }
 508
 509 static void poodle_restart(char mode)
 510 {
 511         arm_machine_restart('h');
 512 }
 513
 514 static void __init poodle_init(void)
 515 {
 516         int ret = 0;
 517
 518         pm_power_off = poodle_poweroff;
 519         arm_pm_restart = poodle_restart;
 520
 521         PCFR |= PCFR_OPDE;
 522
 523         pxa2xx_mfp_config(ARRAY_AND_SIZE(poodle_pin_config));
 524
 525         platform_scoop_config = &poodle_pcmcia_config;
 526
 527         ret = platform_add_devices(devices, ARRAY_SIZE(devices));
 528         if (ret)
 529                 pr_warning("poodle: Unable to register LoCoMo device\n");
 530
 531         set_pxa_fb_parent(&poodle_locomo_device.dev);
 532         set_pxa_fb_info(&poodle_fb_info);
 533         pxa_set_udc_info(&udc_info);
 534         pxa_set_mci_info(&poodle_mci_platform_data);
 535         pxa_set_ficp_info(&poodle_ficp_platform_data);
 536         pxa_set_i2c_info(NULL);
 537         poodle_init_spi();
 538 }
 539
 540 static void __init fixup_poodle(struct machine_desc *desc,
 541                 struct tag *tags, char **cmdline, struct meminfo *mi)
 542 {
 543         sharpsl_save_param();
 544         mi->nr_banks=1;
 545         mi->bank[0].start = 0xa0000000;
 546         mi->bank[0].node = 0;
 547         mi->bank[0].size = (32*1024*1024);
 548 }
 549
 550 MACHINE_START(POODLE, "SHARP Poodle")
 551         .phys_io        = 0x40000000,
 552         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 553         .fixup          = fixup_poodle,
 554         .map_io         = pxa_map_io,
 555         .init_irq       = pxa25x_init_irq,
 556         .timer          = &pxa_timer,
 557         .init_machine   = poodle_init,
 558 MACHINE_END