arch/arm/mach-pxa/tosa.c

   1 /*
   2  *  Support for Sharp SL-C6000x PDAs
   3  *  Model: (Tosa)
   4  *
   5  *  Copyright (c) 2005 Dirk Opfer
   6  *
   7  *      Based on code written by Sharp/Lineo for 2.4 kernels
   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  */
  14
  15 #include <linux/kernel.h>
  16 #include <linux/init.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/major.h>
  19 #include <linux/fs.h>
  20 #include <linux/interrupt.h>
  21 #include <linux/mmc/host.h>
  22 #include <linux/pm.h>
  23 #include <linux/delay.h>
  24 #include <linux/gpio_keys.h>
  25 #include <linux/input.h>
  26 #include <linux/gpio.h>
  27
  28 #include <asm/setup.h>
  29 #include <asm/mach-types.h>
  30 #include <asm/arch/pxa2xx-regs.h>
  31 #include <asm/arch/mfp-pxa25x.h>
  32 #include <asm/arch/irda.h>
  33 #include <asm/arch/i2c.h>
  34 #include <asm/arch/mmc.h>
  35 #include <asm/arch/udc.h>
  36
  37 #include <asm/mach/arch.h>
  38 #include <asm/arch/tosa.h>
  39
  40 #include <asm/hardware/scoop.h>
  41 #include <asm/mach/sharpsl_param.h>
  42
  43 #include "generic.h"
  44 #include "devices.h"
  45
  46 static unsigned long tosa_pin_config[] = {
  47         GPIO78_nCS_2, /* Scoop */
  48         GPIO80_nCS_4, /* tg6393xb */
  49         GPIO33_nCS_5, /* Scoop */
  50
  51         // GPIO76 CARD_VCC_ON1
  52
  53         GPIO19_GPIO, /* Reset out */
  54         GPIO1_RST | WAKEUP_ON_EDGE_FALL,
  55
  56         GPIO0_GPIO | WAKEUP_ON_EDGE_FALL, /* WAKE_UP */
  57         GPIO2_GPIO | WAKEUP_ON_EDGE_BOTH, /* AC_IN */
  58         GPIO3_GPIO | WAKEUP_ON_EDGE_FALL, /* RECORD */
  59         GPIO4_GPIO | WAKEUP_ON_EDGE_FALL, /* SYNC */
  60         GPIO20_GPIO, /* EAR_IN */
  61         GPIO22_GPIO, /* On */
  62
  63         GPIO5_GPIO, /* USB_IN */
  64         GPIO32_GPIO, /* Pen IRQ */
  65
  66         GPIO7_GPIO, /* Jacket Detect */
  67         GPIO14_GPIO, /* BAT0_CRG */
  68         GPIO12_GPIO, /* BAT1_CRG */
  69         GPIO17_GPIO, /* BAT0_LOW */
  70         GPIO84_GPIO, /* BAT1_LOW */
  71         GPIO38_GPIO, /* BAT_LOCK */
  72
  73         GPIO11_3_6MHz,
  74         GPIO15_GPIO, /* TC6393XB IRQ */
  75         GPIO18_RDY,
  76         GPIO27_GPIO, /* LCD Sync */
  77
  78         /* MMC */
  79         GPIO6_MMC_CLK,
  80         GPIO8_MMC_CS0,
  81         GPIO9_GPIO, /* Detect */
  82         GPIO10_GPIO, /* nSD_INT */
  83
  84         /* CF */
  85         GPIO13_GPIO, /* CD_IRQ */
  86         GPIO21_GPIO, /* Main Slot IRQ */
  87         GPIO36_GPIO, /* Jacket Slot IRQ */
  88         GPIO48_nPOE,
  89         GPIO49_nPWE,
  90         GPIO50_nPIOR,
  91         GPIO51_nPIOW,
  92         GPIO52_nPCE_1,
  93         GPIO53_nPCE_2,
  94         GPIO54_nPSKTSEL,
  95         GPIO55_nPREG,
  96         GPIO56_nPWAIT,
  97         GPIO57_nIOIS16,
  98
  99         /* AC97 */
 100         GPIO31_AC97_SYNC,
 101         GPIO30_AC97_SDATA_OUT,
 102         GPIO28_AC97_BITCLK,
 103         GPIO29_AC97_SDATA_IN_0,
 104         // GPIO79 nAUD_IRQ
 105
 106         /* FFUART */
 107         GPIO34_FFUART_RXD,
 108         GPIO35_FFUART_CTS,
 109         GPIO37_FFUART_DSR,
 110         GPIO39_FFUART_TXD,
 111         GPIO40_FFUART_DTR,
 112         GPIO41_FFUART_RTS,
 113
 114         /* BTUART */
 115         GPIO42_BTUART_RXD,
 116         GPIO43_BTUART_TXD,
 117         GPIO44_BTUART_CTS,
 118         GPIO45_BTUART_RTS,
 119
 120         /* Keybd */
 121         GPIO58_GPIO | MFP_LPM_DRIVE_LOW,
 122         GPIO59_GPIO | MFP_LPM_DRIVE_LOW,
 123         GPIO60_GPIO | MFP_LPM_DRIVE_LOW,
 124         GPIO61_GPIO | MFP_LPM_DRIVE_LOW,
 125         GPIO62_GPIO | MFP_LPM_DRIVE_LOW,
 126         GPIO63_GPIO | MFP_LPM_DRIVE_LOW,
 127         GPIO64_GPIO | MFP_LPM_DRIVE_LOW,
 128         GPIO65_GPIO | MFP_LPM_DRIVE_LOW,
 129         GPIO66_GPIO | MFP_LPM_DRIVE_LOW,
 130         GPIO67_GPIO | MFP_LPM_DRIVE_LOW,
 131         GPIO68_GPIO | MFP_LPM_DRIVE_LOW,
 132         GPIO69_GPIO | MFP_LPM_DRIVE_LOW,
 133         GPIO70_GPIO | MFP_LPM_DRIVE_LOW,
 134         GPIO71_GPIO | MFP_LPM_DRIVE_LOW,
 135         GPIO72_GPIO | MFP_LPM_DRIVE_LOW,
 136         GPIO73_GPIO | MFP_LPM_DRIVE_LOW,
 137         GPIO74_GPIO | MFP_LPM_DRIVE_LOW,
 138         GPIO75_GPIO | MFP_LPM_DRIVE_LOW,
 139
 140         /* SPI */
 141         GPIO81_SSP2_CLK_OUT,
 142         GPIO82_SSP2_FRM_OUT,
 143         GPIO83_SSP2_TXD,
 144 };
 145
 146 static unsigned long tosa_pin_irda_off[] = {
 147         GPIO46_STUART_RXD,
 148         GPIO47_GPIO | MFP_LPM_DRIVE_LOW,
 149 };
 150
 151 static unsigned long tosa_pin_irda_on[] = {
 152         GPIO46_STUART_RXD,
 153         GPIO47_STUART_TXD,
 154 };
 155
 156
 157 /*
 158  * SCOOP Device
 159  */
 160 static struct resource tosa_scoop_resources[] = {
 161         [0] = {
 162                 .start  = TOSA_CF_PHYS,
 163                 .end    = TOSA_CF_PHYS + 0xfff,
 164                 .flags  = IORESOURCE_MEM,
 165         },
 166 };
 167
 168 static struct scoop_config tosa_scoop_setup = {
 169         .io_dir         = TOSA_SCOOP_IO_DIR,
 170         .gpio_base      = TOSA_SCOOP_GPIO_BASE,
 171 };
 172
 173 static struct platform_device tosascoop_device = {
 174         .name           = "sharp-scoop",
 175         .id             = 0,
 176         .dev            = {
 177                 .platform_data  = &tosa_scoop_setup,
 178         },
 179         .num_resources  = ARRAY_SIZE(tosa_scoop_resources),
 180         .resource       = tosa_scoop_resources,
 181 };
 182
 183
 184 /*
 185  * SCOOP Device Jacket
 186  */
 187 static struct resource tosa_scoop_jc_resources[] = {
 188         [0] = {
 189                 .start          = TOSA_SCOOP_PHYS + 0x40,
 190                 .end            = TOSA_SCOOP_PHYS + 0xfff,
 191                 .flags          = IORESOURCE_MEM,
 192         },
 193 };
 194
 195 static struct scoop_config tosa_scoop_jc_setup = {
 196         .io_dir         = TOSA_SCOOP_JC_IO_DIR,
 197         .gpio_base      = TOSA_SCOOP_JC_GPIO_BASE,
 198 };
 199
 200 static struct platform_device tosascoop_jc_device = {
 201         .name           = "sharp-scoop",
 202         .id             = 1,
 203         .dev            = {
 204                 .platform_data  = &tosa_scoop_jc_setup,
 205                 .parent         = &tosascoop_device.dev,
 206         },
 207         .num_resources  = ARRAY_SIZE(tosa_scoop_jc_resources),
 208         .resource       = tosa_scoop_jc_resources,
 209 };
 210
 211 /*
 212  * PCMCIA
 213  */
 214 static struct scoop_pcmcia_dev tosa_pcmcia_scoop[] = {
 215 {
 216         .dev        = &tosascoop_device.dev,
 217         .irq        = TOSA_IRQ_GPIO_CF_IRQ,
 218         .cd_irq     = TOSA_IRQ_GPIO_CF_CD,
 219         .cd_irq_str = "PCMCIA0 CD",
 220 },{
 221         .dev        = &tosascoop_jc_device.dev,
 222         .irq        = TOSA_IRQ_GPIO_JC_CF_IRQ,
 223         .cd_irq     = -1,
 224 },
 225 };
 226
 227 static struct scoop_pcmcia_config tosa_pcmcia_config = {
 228         .devs         = &tosa_pcmcia_scoop[0],
 229         .num_devs     = 2,
 230 };
 231
 232 /*
 233  * USB Device Controller
 234  */
 235 static struct pxa2xx_udc_mach_info udc_info __initdata = {
 236         .gpio_pullup            = TOSA_GPIO_USB_PULLUP,
 237         .gpio_vbus              = TOSA_GPIO_USB_IN,
 238         .gpio_vbus_inverted     = 1,
 239 };
 240
 241 /*
 242  * MMC/SD Device
 243  */
 244 static struct pxamci_platform_data tosa_mci_platform_data;
 245
 246 static int tosa_mci_init(struct device *dev, irq_handler_t tosa_detect_int, void *data)
 247 {
 248         int err;
 249
 250         tosa_mci_platform_data.detect_delay = msecs_to_jiffies(250);
 251
 252         err = gpio_request(TOSA_GPIO_nSD_DETECT, "MMC/SD card detect");
 253         if (err) {
 254                 printk(KERN_ERR "tosa_mci_init: can't request nSD_DETECT gpio\n");
 255                 goto err_gpio_detect;
 256         }
 257         err = gpio_direction_input(TOSA_GPIO_nSD_DETECT);
 258         if (err)
 259                 goto err_gpio_detect_dir;
 260
 261         err = request_irq(TOSA_IRQ_GPIO_nSD_DETECT, tosa_detect_int,
 262                           IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 263                                 "MMC/SD card detect", data);
 264         if (err) {
 265                 printk(KERN_ERR "tosa_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
 266                 goto err_irq;
 267         }
 268
 269         err = gpio_request(TOSA_GPIO_SD_WP, "SD Write Protect");
 270         if (err) {
 271                 printk(KERN_ERR "tosa_mci_init: can't request SD_WP gpio\n");
 272                 goto err_gpio_wp;
 273         }
 274         err = gpio_direction_input(TOSA_GPIO_SD_WP);
 275         if (err)
 276                 goto err_gpio_wp_dir;
 277
 278         err = gpio_request(TOSA_GPIO_PWR_ON, "SD Power");
 279         if (err) {
 280                 printk(KERN_ERR "tosa_mci_init: can't request SD_PWR gpio\n");
 281                 goto err_gpio_pwr;
 282         }
 283         err = gpio_direction_output(TOSA_GPIO_PWR_ON, 0);
 284         if (err)
 285                 goto err_gpio_pwr_dir;
 286
 287         err = gpio_request(TOSA_GPIO_nSD_INT, "SD Int");
 288         if (err) {
 289                 printk(KERN_ERR "tosa_mci_init: can't request SD_PWR gpio\n");
 290                 goto err_gpio_int;
 291         }
 292         err = gpio_direction_input(TOSA_GPIO_nSD_INT);
 293         if (err)
 294                 goto err_gpio_int_dir;
 295
 296         return 0;
 297
 298 err_gpio_int_dir:
 299         gpio_free(TOSA_GPIO_nSD_INT);
 300 err_gpio_int:
 301 err_gpio_pwr_dir:
 302         gpio_free(TOSA_GPIO_PWR_ON);
 303 err_gpio_pwr:
 304 err_gpio_wp_dir:
 305         gpio_free(TOSA_GPIO_SD_WP);
 306 err_gpio_wp:
 307         free_irq(TOSA_IRQ_GPIO_nSD_DETECT, data);
 308 err_irq:
 309 err_gpio_detect_dir:
 310         gpio_free(TOSA_GPIO_nSD_DETECT);
 311 err_gpio_detect:
 312         return err;
 313 }
 314
 315 static void tosa_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(TOSA_GPIO_PWR_ON, 1);
 321         } else {
 322                 gpio_set_value(TOSA_GPIO_PWR_ON, 0);
 323         }
 324 }
 325
 326 static int tosa_mci_get_ro(struct device *dev)
 327 {
 328         return gpio_get_value(TOSA_GPIO_SD_WP);
 329 }
 330
 331 static void tosa_mci_exit(struct device *dev, void *data)
 332 {
 333         gpio_free(TOSA_GPIO_nSD_INT);
 334         gpio_free(TOSA_GPIO_PWR_ON);
 335         gpio_free(TOSA_GPIO_SD_WP);
 336         free_irq(TOSA_IRQ_GPIO_nSD_DETECT, data);
 337         gpio_free(TOSA_GPIO_nSD_DETECT);
 338 }
 339
 340 static struct pxamci_platform_data tosa_mci_platform_data = {
 341         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 342         .init           = tosa_mci_init,
 343         .get_ro         = tosa_mci_get_ro,
 344         .setpower       = tosa_mci_setpower,
 345         .exit           = tosa_mci_exit,
 346 };
 347
 348 /*
 349  * Irda
 350  */
 351 static void tosa_irda_transceiver_mode(struct device *dev, int mode)
 352 {
 353         if (mode & IR_OFF) {
 354                 gpio_set_value(TOSA_GPIO_IR_POWERDWN, 0);
 355                 pxa2xx_mfp_config(ARRAY_AND_SIZE(tosa_pin_irda_off));
 356                 gpio_direction_output(TOSA_GPIO_IRDA_TX, 0);
 357         } else {
 358                 pxa2xx_mfp_config(ARRAY_AND_SIZE(tosa_pin_irda_on));
 359                 gpio_set_value(TOSA_GPIO_IR_POWERDWN, 1);
 360         }
 361 }
 362
 363 static int tosa_irda_startup(struct device *dev)
 364 {
 365         int ret;
 366
 367         ret = gpio_request(TOSA_GPIO_IRDA_TX, "IrDA TX");
 368         if (ret)
 369                 goto err_tx;
 370         ret = gpio_direction_output(TOSA_GPIO_IRDA_TX, 0);
 371         if (ret)
 372                 goto err_tx_dir;
 373
 374         ret = gpio_request(TOSA_GPIO_IR_POWERDWN, "IrDA powerdown");
 375         if (ret)
 376                 goto err_pwr;
 377
 378         ret = gpio_direction_output(TOSA_GPIO_IR_POWERDWN, 0);
 379         if (ret)
 380                 goto err_pwr_dir;
 381
 382         tosa_irda_transceiver_mode(dev, IR_SIRMODE | IR_OFF);
 383
 384         return 0;
 385
 386 err_pwr_dir:
 387         gpio_free(TOSA_GPIO_IR_POWERDWN);
 388 err_pwr:
 389 err_tx_dir:
 390         gpio_free(TOSA_GPIO_IRDA_TX);
 391 err_tx:
 392         return ret;
 393 }
 394
 395 static void tosa_irda_shutdown(struct device *dev)
 396 {
 397         tosa_irda_transceiver_mode(dev, IR_SIRMODE | IR_OFF);
 398         gpio_free(TOSA_GPIO_IR_POWERDWN);
 399         gpio_free(TOSA_GPIO_IRDA_TX);
 400 }
 401
 402 static struct pxaficp_platform_data tosa_ficp_platform_data = {
 403         .transceiver_cap  = IR_SIRMODE | IR_OFF,
 404         .transceiver_mode = tosa_irda_transceiver_mode,
 405         .startup = tosa_irda_startup,
 406         .shutdown = tosa_irda_shutdown,
 407 };
 408
 409 /*
 410  * Tosa Keyboard
 411  */
 412 static struct platform_device tosakbd_device = {
 413         .name           = "tosa-keyboard",
 414         .id             = -1,
 415 };
 416
 417 static struct gpio_keys_button tosa_gpio_keys[] = {
 418         /*
 419          * Two following keys are directly tied to "ON" button of tosa. Why?
 420          * The first one can be used as a wakeup source, the second can't;
 421          * also the first one is OR of ac_powered and on_button.
 422          */
 423         {
 424                 .type   = EV_PWR,
 425                 .code   = KEY_RESERVED,
 426                 .gpio   = TOSA_GPIO_POWERON,
 427                 .desc   = "Poweron",
 428                 .wakeup = 1,
 429                 .active_low = 1,
 430         },
 431         {
 432                 .type   = EV_PWR,
 433                 .code   = KEY_SUSPEND,
 434                 .gpio   = TOSA_GPIO_ON_KEY,
 435                 .desc   = "On key",
 436                 /*
 437                  * can't be used as wakeup
 438                  * .wakeup      = 1,
 439                  */
 440                 .active_low = 1,
 441         },
 442         {
 443                 .type   = EV_KEY,
 444                 .code   = TOSA_KEY_RECORD,
 445                 .gpio   = TOSA_GPIO_RECORD_BTN,
 446                 .desc   = "Record Button",
 447                 .wakeup = 1,
 448                 .active_low = 1,
 449         },
 450         {
 451                 .type   = EV_KEY,
 452                 .code   = TOSA_KEY_SYNC,
 453                 .gpio   = TOSA_GPIO_SYNC,
 454                 .desc   = "Sync Button",
 455                 .wakeup = 1,
 456                 .active_low = 1,
 457         },
 458 };
 459
 460 static struct gpio_keys_platform_data tosa_gpio_keys_platform_data = {
 461         .buttons        = tosa_gpio_keys,
 462         .nbuttons       = ARRAY_SIZE(tosa_gpio_keys),
 463 };
 464
 465 static struct platform_device tosa_gpio_keys_device = {
 466         .name   = "gpio-keys",
 467         .id     = -1,
 468         .dev    = {
 469                 .platform_data  = &tosa_gpio_keys_platform_data,
 470         },
 471 };
 472
 473 /*
 474  * Tosa LEDs
 475  */
 476 static struct gpio_led tosa_gpio_leds[] = {
 477         {
 478                 .name                   = "tosa:amber:charge",
 479                 .default_trigger        = "main-battery-charging",
 480                 .gpio                   = TOSA_GPIO_CHRG_ERR_LED,
 481         },
 482         {
 483                 .name                   = "tosa:green:mail",
 484                 .default_trigger        = "nand-disk",
 485                 .gpio                   = TOSA_GPIO_NOTE_LED,
 486         },
 487         {
 488                 .name                   = "tosa:dual:wlan",
 489                 .default_trigger        = "none",
 490                 .gpio                   = TOSA_GPIO_WLAN_LED,
 491         },
 492         {
 493                 .name                   = "tosa:blue:bluetooth",
 494                 .default_trigger        = "none",
 495                 .gpio                   = TOSA_GPIO_BT_LED,
 496         },
 497 };
 498
 499 static struct gpio_led_platform_data tosa_gpio_leds_platform_data = {
 500         .leds           = tosa_gpio_leds,
 501         .num_leds       = ARRAY_SIZE(tosa_gpio_leds),
 502 };
 503
 504 static struct platform_device tosaled_device = {
 505         .name   = "leds-gpio",
 506         .id     = -1,
 507         .dev    = {
 508                 .platform_data  = &tosa_gpio_leds_platform_data,
 509         },
 510 };
 511
 512 static struct platform_device *devices[] __initdata = {
 513         &tosascoop_device,
 514         &tosascoop_jc_device,
 515         &tosakbd_device,
 516         &tosa_gpio_keys_device,
 517         &tosaled_device,
 518 };
 519
 520 static void tosa_poweroff(void)
 521 {
 522         arm_machine_restart('g');
 523 }
 524
 525 static void tosa_restart(char mode)
 526 {
 527         /* Bootloader magic for a reboot */
 528         if((MSC0 & 0xffff0000) == 0x7ff00000)
 529                 MSC0 = (MSC0 & 0xffff) | 0x7ee00000;
 530
 531         tosa_poweroff();
 532 }
 533
 534 static void __init tosa_init(void)
 535 {
 536         pxa2xx_mfp_config(ARRAY_AND_SIZE(tosa_pin_config));
 537         pxa2xx_mfp_config(ARRAY_AND_SIZE(tosa_pin_irda_off));
 538         gpio_set_wake(MFP_PIN_GPIO1, 1);
 539         /* We can't pass to gpio-keys since it will drop the Reset altfunc */
 540
 541         init_gpio_reset(TOSA_GPIO_ON_RESET);
 542
 543         pm_power_off = tosa_poweroff;
 544         arm_pm_restart = tosa_restart;
 545
 546         PCFR |= PCFR_OPDE;
 547
 548         /* enable batt_fault */
 549         PMCR = 0x01;
 550
 551         pxa_set_mci_info(&tosa_mci_platform_data);
 552         pxa_set_udc_info(&udc_info);
 553         pxa_set_ficp_info(&tosa_ficp_platform_data);
 554         pxa_set_i2c_info(NULL);
 555         platform_scoop_config = &tosa_pcmcia_config;
 556
 557         platform_add_devices(devices, ARRAY_SIZE(devices));
 558 }
 559
 560 static void __init fixup_tosa(struct machine_desc *desc,
 561                 struct tag *tags, char **cmdline, struct meminfo *mi)
 562 {
 563         sharpsl_save_param();
 564         mi->nr_banks=1;
 565         mi->bank[0].start = 0xa0000000;
 566         mi->bank[0].node = 0;
 567         mi->bank[0].size = (64*1024*1024);
 568 }
 569
 570 MACHINE_START(TOSA, "SHARP Tosa")
 571         .phys_io        = 0x40000000,
 572         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 573         .fixup          = fixup_tosa,
 574         .map_io         = pxa_map_io,
 575         .init_irq       = pxa25x_init_irq,
 576         .init_machine   = tosa_init,
 577         .timer          = &pxa_timer,
 578 MACHINE_END