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