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   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/gpio.h>
  24 #include <linux/spi/spi.h>
  25 #include <linux/spi/ads7846.h>
  26
  27 #include <mach/hardware.h>
  28 #include <asm/mach-types.h>
  29 #include <asm/irq.h>
  30 #include <asm/setup.h>
  31 #include <asm/system.h>
  32
  33 #include <asm/mach/arch.h>
  34 #include <asm/mach/map.h>
  35 #include <asm/mach/irq.h>
  36
  37 #include <mach/pxa-regs.h>
  38 #include <mach/pxa2xx-regs.h>
  39 #include <mach/mfp-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_ACBIAS,
 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 };
 152
 153 struct platform_device poodle_scoop_device = {
 154         .name           = "sharp-scoop",
 155         .id             = -1,
 156         .dev            = {
 157                 .platform_data  = &poodle_scoop_setup,
 158         },
 159         .num_resources  = ARRAY_SIZE(poodle_scoop_resources),
 160         .resource       = poodle_scoop_resources,
 161 };
 162
 163 static struct scoop_pcmcia_dev poodle_pcmcia_scoop[] = {
 164 {
 165         .dev        = &poodle_scoop_device.dev,
 166         .irq        = POODLE_IRQ_GPIO_CF_IRQ,
 167         .cd_irq     = POODLE_IRQ_GPIO_CF_CD,
 168         .cd_irq_str = "PCMCIA0 CD",
 169 },
 170 };
 171
 172 static struct scoop_pcmcia_config poodle_pcmcia_config = {
 173         .devs         = &poodle_pcmcia_scoop[0],
 174         .num_devs     = 1,
 175 };
 176
 177 EXPORT_SYMBOL(poodle_scoop_device);
 178
 179
 180 /* LoCoMo device */
 181 static struct resource locomo_resources[] = {
 182         [0] = {
 183                 .start          = 0x10000000,
 184                 .end            = 0x10001fff,
 185                 .flags          = IORESOURCE_MEM,
 186         },
 187         [1] = {
 188                 .start          = IRQ_GPIO(10),
 189                 .end            = IRQ_GPIO(10),
 190                 .flags          = IORESOURCE_IRQ,
 191         },
 192 };
 193
 194 struct platform_device poodle_locomo_device = {
 195         .name           = "locomo",
 196         .id             = 0,
 197         .num_resources  = ARRAY_SIZE(locomo_resources),
 198         .resource       = locomo_resources,
 199 };
 200
 201 EXPORT_SYMBOL(poodle_locomo_device);
 202
 203 #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
 204 static struct pxa2xx_spi_master poodle_spi_info = {
 205         .num_chipselect = 1,
 206 };
 207
 208 static struct ads7846_platform_data poodle_ads7846_info = {
 209         .model                  = 7846,
 210         .vref_delay_usecs       = 100,
 211         .x_plate_ohms           = 419,
 212         .y_plate_ohms           = 486,
 213         .gpio_pendown           = POODLE_GPIO_TP_INT,
 214 };
 215
 216 static void ads7846_cs(u32 command)
 217 {
 218         gpio_set_value(POODLE_GPIO_TP_CS, !(command == PXA2XX_CS_ASSERT));
 219 }
 220
 221 static struct pxa2xx_spi_chip poodle_ads7846_chip = {
 222         .cs_control             = ads7846_cs,
 223 };
 224
 225 static struct spi_board_info poodle_spi_devices[] = {
 226         {
 227                 .modalias       = "ads7846",
 228                 .max_speed_hz   = 10000,
 229                 .bus_num        = 1,
 230                 .platform_data  = &poodle_ads7846_info,
 231                 .controller_data= &poodle_ads7846_chip,
 232                 .irq            = gpio_to_irq(POODLE_GPIO_TP_INT),
 233         },
 234 };
 235
 236 static void __init poodle_init_spi(void)
 237 {
 238         int err;
 239
 240         err = gpio_request(POODLE_GPIO_TP_CS, "ADS7846_CS");
 241         if (err)
 242                 return;
 243
 244         gpio_direction_output(POODLE_GPIO_TP_CS, 1);
 245
 246         pxa2xx_set_spi_info(1, &poodle_spi_info);
 247         spi_register_board_info(ARRAY_AND_SIZE(poodle_spi_devices));
 248 }
 249 #else
 250 static inline void poodle_init_spi(void) {}
 251 #endif
 252
 253 /*
 254  * MMC/SD Device
 255  *
 256  * The card detect interrupt isn't debounced so we delay it by 250ms
 257  * to give the card a chance to fully insert/eject.
 258  */
 259 static struct pxamci_platform_data poodle_mci_platform_data;
 260
 261 static int poodle_mci_init(struct device *dev, irq_handler_t poodle_detect_int, void *data)
 262 {
 263         int err;
 264
 265         err = gpio_request(POODLE_GPIO_nSD_DETECT, "nSD_DETECT");
 266         if (err)
 267                 goto err_out;
 268
 269         err = gpio_request(POODLE_GPIO_nSD_WP, "nSD_WP");
 270         if (err)
 271                 goto err_free_1;
 272
 273         err = gpio_request(POODLE_GPIO_SD_PWR, "SD_PWR");
 274         if (err)
 275                 goto err_free_2;
 276
 277         err = gpio_request(POODLE_GPIO_SD_PWR1, "SD_PWR1");
 278         if (err)
 279                 goto err_free_3;
 280
 281         gpio_direction_input(POODLE_GPIO_nSD_DETECT);
 282         gpio_direction_input(POODLE_GPIO_nSD_WP);
 283
 284         gpio_direction_output(POODLE_GPIO_SD_PWR, 0);
 285         gpio_direction_output(POODLE_GPIO_SD_PWR1, 0);
 286
 287         poodle_mci_platform_data.detect_delay = msecs_to_jiffies(250);
 288
 289         err = request_irq(POODLE_IRQ_GPIO_nSD_DETECT, poodle_detect_int,
 290                           IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 291                           "MMC card detect", data);
 292         if (err) {
 293                 pr_err("%s: MMC/SD: can't request MMC card detect IRQ\n",
 294                                 __func__);
 295                 goto err_free_4;
 296         }
 297
 298         return 0;
 299
 300 err_free_4:
 301         gpio_free(POODLE_GPIO_SD_PWR1);
 302 err_free_3:
 303         gpio_free(POODLE_GPIO_SD_PWR);
 304 err_free_2:
 305         gpio_free(POODLE_GPIO_nSD_WP);
 306 err_free_1:
 307         gpio_free(POODLE_GPIO_nSD_DETECT);
 308 err_out:
 309         return err;
 310 }
 311
 312 static void poodle_mci_setpower(struct device *dev, unsigned int vdd)
 313 {
 314         struct pxamci_platform_data* p_d = dev->platform_data;
 315
 316         if ((1 << vdd) & p_d->ocr_mask) {
 317                 gpio_set_value(POODLE_GPIO_SD_PWR, 1);
 318                 mdelay(2);
 319                 gpio_set_value(POODLE_GPIO_SD_PWR1, 1);
 320         } else {
 321                 gpio_set_value(POODLE_GPIO_SD_PWR1, 0);
 322                 gpio_set_value(POODLE_GPIO_SD_PWR, 0);
 323         }
 324 }
 325
 326 static int poodle_mci_get_ro(struct device *dev)
 327 {
 328         return !!gpio_get_value(POODLE_GPIO_nSD_WP);
 329         return GPLR(POODLE_GPIO_nSD_WP) & GPIO_bit(POODLE_GPIO_nSD_WP);
 330 }
 331
 332
 333 static void poodle_mci_exit(struct device *dev, void *data)
 334 {
 335         free_irq(POODLE_IRQ_GPIO_nSD_DETECT, data);
 336         gpio_free(POODLE_GPIO_SD_PWR1);
 337         gpio_free(POODLE_GPIO_SD_PWR);
 338         gpio_free(POODLE_GPIO_nSD_WP);
 339         gpio_free(POODLE_GPIO_nSD_DETECT);
 340 }
 341
 342 static struct pxamci_platform_data poodle_mci_platform_data = {
 343         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 344         .init           = poodle_mci_init,
 345         .get_ro         = poodle_mci_get_ro,
 346         .setpower       = poodle_mci_setpower,
 347         .exit           = poodle_mci_exit,
 348 };
 349
 350
 351 /*
 352  * Irda
 353  */
 354 static void poodle_irda_transceiver_mode(struct device *dev, int mode)
 355 {
 356         gpio_set_value(POODLE_GPIO_IR_ON, mode & IR_OFF);
 357         pxa2xx_transceiver_mode(dev, mode);
 358 }
 359
 360 static int poodle_irda_startup(struct device *dev)
 361 {
 362         int err;
 363
 364         err = gpio_request(POODLE_GPIO_IR_ON, "IR_ON");
 365         if (err)
 366                 return err;
 367
 368         gpio_direction_output(POODLE_GPIO_IR_ON, 1);
 369         return 0;
 370 }
 371
 372 static void poodle_irda_shutdown(struct device *dev)
 373 {
 374         gpio_free(POODLE_GPIO_IR_ON);
 375 }
 376
 377 static struct pxaficp_platform_data poodle_ficp_platform_data = {
 378         .transceiver_cap        = IR_SIRMODE | IR_OFF,
 379         .transceiver_mode       = poodle_irda_transceiver_mode,
 380         .startup                = poodle_irda_startup,
 381         .shutdown               = poodle_irda_shutdown,
 382 };
 383
 384
 385 /*
 386  * USB Device Controller
 387  */
 388 static struct pxa2xx_udc_mach_info udc_info __initdata = {
 389         /* no connect GPIO; poodle can't tell connection status */
 390         .gpio_pullup    = POODLE_GPIO_USB_PULLUP,
 391 };
 392
 393
 394 /* PXAFB device */
 395 static struct pxafb_mode_info poodle_fb_mode = {
 396         .pixclock       = 144700,
 397         .xres           = 320,
 398         .yres           = 240,
 399         .bpp            = 16,
 400         .hsync_len      = 7,
 401         .left_margin    = 11,
 402         .right_margin   = 30,
 403         .vsync_len      = 2,
 404         .upper_margin   = 2,
 405         .lower_margin   = 0,
 406         .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 407 };
 408
 409 static struct pxafb_mach_info poodle_fb_info = {
 410         .modes          = &poodle_fb_mode,
 411         .num_modes      = 1,
 412         .lcd_conn       = LCD_COLOR_TFT_16BPP,
 413 };
 414
 415 static struct platform_device *devices[] __initdata = {
 416         &poodle_locomo_device,
 417         &poodle_scoop_device,
 418 };
 419
 420 static void poodle_poweroff(void)
 421 {
 422         arm_machine_restart('h');
 423 }
 424
 425 static void poodle_restart(char mode)
 426 {
 427         arm_machine_restart('h');
 428 }
 429
 430 static void __init poodle_init(void)
 431 {
 432         int ret = 0;
 433
 434         pm_power_off = poodle_poweroff;
 435         arm_pm_restart = poodle_restart;
 436
 437         PCFR |= PCFR_OPDE;
 438
 439         pxa2xx_mfp_config(ARRAY_AND_SIZE(poodle_pin_config));
 440
 441         platform_scoop_config = &poodle_pcmcia_config;
 442
 443         ret = platform_add_devices(devices, ARRAY_SIZE(devices));
 444         if (ret)
 445                 pr_warning("poodle: Unable to register LoCoMo device\n");
 446
 447         set_pxa_fb_parent(&poodle_locomo_device.dev);
 448         set_pxa_fb_info(&poodle_fb_info);
 449         pxa_set_udc_info(&udc_info);
 450         pxa_set_mci_info(&poodle_mci_platform_data);
 451         pxa_set_ficp_info(&poodle_ficp_platform_data);
 452         pxa_set_i2c_info(NULL);
 453         poodle_init_spi();
 454 }
 455
 456 static void __init fixup_poodle(struct machine_desc *desc,
 457                 struct tag *tags, char **cmdline, struct meminfo *mi)
 458 {
 459         sharpsl_save_param();
 460         mi->nr_banks=1;
 461         mi->bank[0].start = 0xa0000000;
 462         mi->bank[0].node = 0;
 463         mi->bank[0].size = (32*1024*1024);
 464 }
 465
 466 MACHINE_START(POODLE, "SHARP Poodle")
 467         .phys_io        = 0x40000000,
 468         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 469         .fixup          = fixup_poodle,
 470         .map_io         = pxa_map_io,
 471         .init_irq       = pxa25x_init_irq,
 472         .timer          = &pxa_timer,
 473         .init_machine   = poodle_init,
 474 MACHINE_END