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/pxa25x.h>
  40 #include <mach/mmc.h>
  41 #include <mach/udc.h>
  42 #include <mach/i2c.h>
  43 #include <mach/irda.h>
  44 #include <mach/poodle.h>
  45 #include <mach/pxafb.h>
  46 #include <mach/sharpsl.h>
  47 #include <mach/ssp.h>
  48 #include <mach/pxa2xx_spi.h>
  49
  50 #include <asm/hardware/scoop.h>
  51 #include <asm/hardware/locomo.h>
  52 #include <asm/mach/sharpsl_param.h>
  53
  54 #include "generic.h"
  55 #include "devices.h"
  56 #include "sharpsl.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         GPIO58_LCD_LDD_0,
  94         GPIO59_LCD_LDD_1,
  95         GPIO60_LCD_LDD_2,
  96         GPIO61_LCD_LDD_3,
  97         GPIO62_LCD_LDD_4,
  98         GPIO63_LCD_LDD_5,
  99         GPIO64_LCD_LDD_6,
 100         GPIO65_LCD_LDD_7,
 101         GPIO66_LCD_LDD_8,
 102         GPIO67_LCD_LDD_9,
 103         GPIO68_LCD_LDD_10,
 104         GPIO69_LCD_LDD_11,
 105         GPIO70_LCD_LDD_12,
 106         GPIO71_LCD_LDD_13,
 107         GPIO72_LCD_LDD_14,
 108         GPIO73_LCD_LDD_15,
 109         GPIO74_LCD_FCLK,
 110         GPIO75_LCD_LCLK,
 111         GPIO76_LCD_PCLK,
 112         GPIO77_LCD_BIAS,
 113
 114         /* PC Card */
 115         GPIO48_nPOE,
 116         GPIO49_nPWE,
 117         GPIO50_nPIOR,
 118         GPIO51_nPIOW,
 119         GPIO52_nPCE_1,
 120         GPIO53_nPCE_2,
 121         GPIO54_nPSKTSEL,
 122         GPIO55_nPREG,
 123         GPIO56_nPWAIT,
 124         GPIO57_nIOIS16,
 125
 126         /* MMC */
 127         GPIO6_MMC_CLK,
 128         GPIO8_MMC_CS0,
 129
 130         /* GPIO */
 131         GPIO9_GPIO,     /* POODLE_GPIO_nSD_DETECT */
 132         GPIO7_GPIO,     /* POODLE_GPIO_nSD_WP */
 133         GPIO3_GPIO,     /* POODLE_GPIO_SD_PWR */
 134         GPIO33_GPIO,    /* POODLE_GPIO_SD_PWR1 */
 135
 136         GPIO20_GPIO,    /* POODLE_GPIO_USB_PULLUP */
 137         GPIO22_GPIO,    /* POODLE_GPIO_IR_ON */
 138 };
 139
 140 static struct resource poodle_scoop_resources[] = {
 141         [0] = {
 142                 .start          = 0x10800000,
 143                 .end            = 0x10800fff,
 144                 .flags          = IORESOURCE_MEM,
 145         },
 146 };
 147
 148 static struct scoop_config poodle_scoop_setup = {
 149         .io_dir         = POODLE_SCOOP_IO_DIR,
 150         .io_out         = POODLE_SCOOP_IO_OUT,
 151         .gpio_base      = POODLE_SCOOP_GPIO_BASE,
 152 };
 153
 154 struct platform_device poodle_scoop_device = {
 155         .name           = "sharp-scoop",
 156         .id             = -1,
 157         .dev            = {
 158                 .platform_data  = &poodle_scoop_setup,
 159         },
 160         .num_resources  = ARRAY_SIZE(poodle_scoop_resources),
 161         .resource       = poodle_scoop_resources,
 162 };
 163
 164 static struct scoop_pcmcia_dev poodle_pcmcia_scoop[] = {
 165 {
 166         .dev        = &poodle_scoop_device.dev,
 167         .irq        = POODLE_IRQ_GPIO_CF_IRQ,
 168         .cd_irq     = POODLE_IRQ_GPIO_CF_CD,
 169         .cd_irq_str = "PCMCIA0 CD",
 170 },
 171 };
 172
 173 static struct scoop_pcmcia_config poodle_pcmcia_config = {
 174         .devs         = &poodle_pcmcia_scoop[0],
 175         .num_devs     = 1,
 176 };
 177
 178 EXPORT_SYMBOL(poodle_scoop_device);
 179
 180
 181 /* LoCoMo device */
 182 static struct resource locomo_resources[] = {
 183         [0] = {
 184                 .start          = 0x10000000,
 185                 .end            = 0x10001fff,
 186                 .flags          = IORESOURCE_MEM,
 187         },
 188         [1] = {
 189                 .start          = IRQ_GPIO(10),
 190                 .end            = IRQ_GPIO(10),
 191                 .flags          = IORESOURCE_IRQ,
 192         },
 193 };
 194
 195 struct platform_device poodle_locomo_device = {
 196         .name           = "locomo",
 197         .id             = 0,
 198         .num_resources  = ARRAY_SIZE(locomo_resources),
 199         .resource       = locomo_resources,
 200 };
 201
 202 EXPORT_SYMBOL(poodle_locomo_device);
 203
 204 #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
 205 static struct pxa2xx_spi_master poodle_spi_info = {
 206         .num_chipselect = 1,
 207 };
 208
 209 static struct ads7846_platform_data poodle_ads7846_info = {
 210         .model                  = 7846,
 211         .vref_delay_usecs       = 100,
 212         .x_plate_ohms           = 419,
 213         .y_plate_ohms           = 486,
 214         .gpio_pendown           = POODLE_GPIO_TP_INT,
 215 };
 216
 217 static void ads7846_cs(u32 command)
 218 {
 219         gpio_set_value(POODLE_GPIO_TP_CS, !(command == PXA2XX_CS_ASSERT));
 220 }
 221
 222 static struct pxa2xx_spi_chip poodle_ads7846_chip = {
 223         .cs_control             = ads7846_cs,
 224 };
 225
 226 static struct spi_board_info poodle_spi_devices[] = {
 227         {
 228                 .modalias       = "ads7846",
 229                 .max_speed_hz   = 10000,
 230                 .bus_num        = 1,
 231                 .platform_data  = &poodle_ads7846_info,
 232                 .controller_data= &poodle_ads7846_chip,
 233                 .irq            = gpio_to_irq(POODLE_GPIO_TP_INT),
 234         },
 235 };
 236
 237 static void __init poodle_init_spi(void)
 238 {
 239         int err;
 240
 241         err = gpio_request(POODLE_GPIO_TP_CS, "ADS7846_CS");
 242         if (err)
 243                 return;
 244
 245         gpio_direction_output(POODLE_GPIO_TP_CS, 1);
 246
 247         pxa2xx_set_spi_info(1, &poodle_spi_info);
 248         spi_register_board_info(ARRAY_AND_SIZE(poodle_spi_devices));
 249 }
 250 #else
 251 static inline void poodle_init_spi(void) {}
 252 #endif
 253
 254 /*
 255  * MMC/SD Device
 256  *
 257  * The card detect interrupt isn't debounced so we delay it by 250ms
 258  * to give the card a chance to fully insert/eject.
 259  */
 260 static struct pxamci_platform_data poodle_mci_platform_data;
 261
 262 static int poodle_mci_init(struct device *dev, irq_handler_t poodle_detect_int, void *data)
 263 {
 264         int err;
 265
 266         err = gpio_request(POODLE_GPIO_nSD_DETECT, "nSD_DETECT");
 267         if (err)
 268                 goto err_out;
 269
 270         err = gpio_request(POODLE_GPIO_nSD_WP, "nSD_WP");
 271         if (err)
 272                 goto err_free_1;
 273
 274         err = gpio_request(POODLE_GPIO_SD_PWR, "SD_PWR");
 275         if (err)
 276                 goto err_free_2;
 277
 278         err = gpio_request(POODLE_GPIO_SD_PWR1, "SD_PWR1");
 279         if (err)
 280                 goto err_free_3;
 281
 282         gpio_direction_input(POODLE_GPIO_nSD_DETECT);
 283         gpio_direction_input(POODLE_GPIO_nSD_WP);
 284
 285         gpio_direction_output(POODLE_GPIO_SD_PWR, 0);
 286         gpio_direction_output(POODLE_GPIO_SD_PWR1, 0);
 287
 288         poodle_mci_platform_data.detect_delay = msecs_to_jiffies(250);
 289
 290         err = request_irq(POODLE_IRQ_GPIO_nSD_DETECT, poodle_detect_int,
 291                           IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 292                           "MMC card detect", data);
 293         if (err) {
 294                 pr_err("%s: MMC/SD: can't request MMC card detect IRQ\n",
 295                                 __func__);
 296                 goto err_free_4;
 297         }
 298
 299         return 0;
 300
 301 err_free_4:
 302         gpio_free(POODLE_GPIO_SD_PWR1);
 303 err_free_3:
 304         gpio_free(POODLE_GPIO_SD_PWR);
 305 err_free_2:
 306         gpio_free(POODLE_GPIO_nSD_WP);
 307 err_free_1:
 308         gpio_free(POODLE_GPIO_nSD_DETECT);
 309 err_out:
 310         return err;
 311 }
 312
 313 static void poodle_mci_setpower(struct device *dev, unsigned int vdd)
 314 {
 315         struct pxamci_platform_data* p_d = dev->platform_data;
 316
 317         if ((1 << vdd) & p_d->ocr_mask) {
 318                 gpio_set_value(POODLE_GPIO_SD_PWR, 1);
 319                 mdelay(2);
 320                 gpio_set_value(POODLE_GPIO_SD_PWR1, 1);
 321         } else {
 322                 gpio_set_value(POODLE_GPIO_SD_PWR1, 0);
 323                 gpio_set_value(POODLE_GPIO_SD_PWR, 0);
 324         }
 325 }
 326
 327 static int poodle_mci_get_ro(struct device *dev)
 328 {
 329         return !!gpio_get_value(POODLE_GPIO_nSD_WP);
 330         return GPLR(POODLE_GPIO_nSD_WP) & GPIO_bit(POODLE_GPIO_nSD_WP);
 331 }
 332
 333
 334 static void poodle_mci_exit(struct device *dev, void *data)
 335 {
 336         free_irq(POODLE_IRQ_GPIO_nSD_DETECT, data);
 337         gpio_free(POODLE_GPIO_SD_PWR1);
 338         gpio_free(POODLE_GPIO_SD_PWR);
 339         gpio_free(POODLE_GPIO_nSD_WP);
 340         gpio_free(POODLE_GPIO_nSD_DETECT);
 341 }
 342
 343 static struct pxamci_platform_data poodle_mci_platform_data = {
 344         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 345         .init           = poodle_mci_init,
 346         .get_ro         = poodle_mci_get_ro,
 347         .setpower       = poodle_mci_setpower,
 348         .exit           = poodle_mci_exit,
 349 };
 350
 351
 352 /*
 353  * Irda
 354  */
 355 static void poodle_irda_transceiver_mode(struct device *dev, int mode)
 356 {
 357         gpio_set_value(POODLE_GPIO_IR_ON, mode & IR_OFF);
 358         pxa2xx_transceiver_mode(dev, mode);
 359 }
 360
 361 static int poodle_irda_startup(struct device *dev)
 362 {
 363         int err;
 364
 365         err = gpio_request(POODLE_GPIO_IR_ON, "IR_ON");
 366         if (err)
 367                 return err;
 368
 369         gpio_direction_output(POODLE_GPIO_IR_ON, 1);
 370         return 0;
 371 }
 372
 373 static void poodle_irda_shutdown(struct device *dev)
 374 {
 375         gpio_free(POODLE_GPIO_IR_ON);
 376 }
 377
 378 static struct pxaficp_platform_data poodle_ficp_platform_data = {
 379         .transceiver_cap        = IR_SIRMODE | IR_OFF,
 380         .transceiver_mode       = poodle_irda_transceiver_mode,
 381         .startup                = poodle_irda_startup,
 382         .shutdown               = poodle_irda_shutdown,
 383 };
 384
 385
 386 /*
 387  * USB Device Controller
 388  */
 389 static struct pxa2xx_udc_mach_info udc_info __initdata = {
 390         /* no connect GPIO; poodle can't tell connection status */
 391         .gpio_pullup    = POODLE_GPIO_USB_PULLUP,
 392 };
 393
 394
 395 /* PXAFB device */
 396 static struct pxafb_mode_info poodle_fb_mode = {
 397         .pixclock       = 144700,
 398         .xres           = 320,
 399         .yres           = 240,
 400         .bpp            = 16,
 401         .hsync_len      = 7,
 402         .left_margin    = 11,
 403         .right_margin   = 30,
 404         .vsync_len      = 2,
 405         .upper_margin   = 2,
 406         .lower_margin   = 0,
 407         .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 408 };
 409
 410 static struct pxafb_mach_info poodle_fb_info = {
 411         .modes          = &poodle_fb_mode,
 412         .num_modes      = 1,
 413         .lcd_conn       = LCD_COLOR_TFT_16BPP,
 414 };
 415
 416 static struct mtd_partition sharpsl_nand_partitions[] = {
 417         {
 418                 .name = "System Area",
 419                 .offset = 0,
 420                 .size = 7 * 1024 * 1024,
 421         },
 422         {
 423                 .name = "Root Filesystem",
 424                 .offset = 7 * 1024 * 1024,
 425                 .size = 22 * 1024 * 1024,
 426         },
 427         {
 428                 .name = "Home Filesystem",
 429                 .offset = MTDPART_OFS_APPEND,
 430                 .size = MTDPART_SIZ_FULL,
 431         },
 432 };
 433
 434 static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
 435
 436 static struct nand_bbt_descr sharpsl_bbt = {
 437         .options = 0,
 438         .offs = 4,
 439         .len = 2,
 440         .pattern = scan_ff_pattern
 441 };
 442
 443 static struct sharpsl_nand_platform_data sharpsl_nand_platform_data = {
 444         .badblock_pattern       = &sharpsl_bbt,
 445         .partitions             = sharpsl_nand_partitions,
 446         .nr_partitions          = ARRAY_SIZE(sharpsl_nand_partitions),
 447 };
 448
 449 static struct resource sharpsl_nand_resources[] = {
 450         {
 451                 .start  = 0x0C000000,
 452                 .end    = 0x0C000FFF,
 453                 .flags  = IORESOURCE_MEM,
 454         },
 455 };
 456
 457 static struct platform_device sharpsl_nand_device = {
 458         .name           = "sharpsl-nand",
 459         .id             = -1,
 460         .resource       = sharpsl_nand_resources,
 461         .num_resources  = ARRAY_SIZE(sharpsl_nand_resources),
 462         .dev.platform_data      = &sharpsl_nand_platform_data,
 463 };
 464
 465 static struct mtd_partition sharpsl_rom_parts[] = {
 466         {
 467                 .name   ="Boot PROM Filesystem",
 468                 .offset = 0x00120000,
 469                 .size   = MTDPART_SIZ_FULL,
 470         },
 471 };
 472
 473 static struct physmap_flash_data sharpsl_rom_data = {
 474         .width          = 2,
 475         .nr_parts       = ARRAY_SIZE(sharpsl_rom_parts),
 476         .parts          = sharpsl_rom_parts,
 477 };
 478
 479 static struct resource sharpsl_rom_resources[] = {
 480         {
 481                 .start  = 0x00000000,
 482                 .end    = 0x007fffff,
 483                 .flags  = IORESOURCE_MEM,
 484         },
 485 };
 486
 487 static struct platform_device sharpsl_rom_device = {
 488         .name   = "physmap-flash",
 489         .id     = -1,
 490         .resource = sharpsl_rom_resources,
 491         .num_resources = ARRAY_SIZE(sharpsl_rom_resources),
 492         .dev.platform_data = &sharpsl_rom_data,
 493 };
 494
 495 static struct platform_device *devices[] __initdata = {
 496         &poodle_locomo_device,
 497         &poodle_scoop_device,
 498         &sharpsl_nand_device,
 499         &sharpsl_rom_device,
 500 };
 501
 502 static void poodle_poweroff(void)
 503 {
 504         arm_machine_restart('h', NULL);
 505 }
 506
 507 static void poodle_restart(char mode, const char *cmd)
 508 {
 509         arm_machine_restart('h', cmd);
 510 }
 511
 512 static void __init poodle_init(void)
 513 {
 514         int ret = 0;
 515
 516         pm_power_off = poodle_poweroff;
 517         arm_pm_restart = poodle_restart;
 518
 519         PCFR |= PCFR_OPDE;
 520
 521         pxa2xx_mfp_config(ARRAY_AND_SIZE(poodle_pin_config));
 522
 523         platform_scoop_config = &poodle_pcmcia_config;
 524
 525         ret = platform_add_devices(devices, ARRAY_SIZE(devices));
 526         if (ret)
 527                 pr_warning("poodle: Unable to register LoCoMo device\n");
 528
 529         set_pxa_fb_parent(&poodle_locomo_device.dev);
 530         set_pxa_fb_info(&poodle_fb_info);
 531         pxa_set_udc_info(&udc_info);
 532         pxa_set_mci_info(&poodle_mci_platform_data);
 533         pxa_set_ficp_info(&poodle_ficp_platform_data);
 534         pxa_set_i2c_info(NULL);
 535         poodle_init_spi();
 536 }
 537
 538 static void __init fixup_poodle(struct machine_desc *desc,
 539                 struct tag *tags, char **cmdline, struct meminfo *mi)
 540 {
 541         sharpsl_save_param();
 542         mi->nr_banks=1;
 543         mi->bank[0].start = 0xa0000000;
 544         mi->bank[0].node = 0;
 545         mi->bank[0].size = (32*1024*1024);
 546 }
 547
 548 MACHINE_START(POODLE, "SHARP Poodle")
 549         .phys_io        = 0x40000000,
 550         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 551         .fixup          = fixup_poodle,
 552         .map_io         = pxa_map_io,
 553         .init_irq       = pxa25x_init_irq,
 554         .timer          = &pxa_timer,
 555         .init_machine   = poodle_init,
 556 MACHINE_END