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/memory.h>
  30 #include <asm/mach-types.h>
  31 #include <asm/hardware.h>
  32 #include <asm/irq.h>
  33 #include <asm/system.h>
  34 #include <asm/arch/pxa-regs.h>
  35 #include <asm/arch/pxa2xx-regs.h>
  36 #include <asm/arch/mfp-pxa25x.h>
  37 #include <asm/arch/irda.h>
  38 #include <asm/arch/i2c.h>
  39 #include <asm/arch/mmc.h>
  40 #include <asm/arch/udc.h>
  41
  42 #include <asm/mach/arch.h>
  43 #include <asm/mach/map.h>
  44 #include <asm/mach/irq.h>
  45 #include <asm/arch/tosa.h>
  46
  47 #include <asm/hardware/scoop.h>
  48 #include <asm/mach/sharpsl_param.h>
  49
  50 #include "generic.h"
  51 #include "devices.h"
  52
  53 static unsigned long tosa_pin_config[] = {
  54         GPIO78_nCS_2, /* Scoop */
  55         GPIO80_nCS_4, /* tg6393xb */
  56         GPIO33_nCS_5, /* Scoop */
  57
  58         // GPIO76 CARD_VCC_ON1
  59
  60         GPIO19_GPIO, /* Reset out */
  61         GPIO1_RST | WAKEUP_ON_EDGE_FALL,
  62
  63         GPIO0_GPIO | WAKEUP_ON_EDGE_FALL, /* WAKE_UP */
  64         GPIO2_GPIO | WAKEUP_ON_EDGE_BOTH, /* AC_IN */
  65         GPIO3_GPIO | WAKEUP_ON_EDGE_FALL, /* RECORD */
  66         GPIO4_GPIO | WAKEUP_ON_EDGE_FALL, /* SYNC */
  67         GPIO20_GPIO, /* EAR_IN */
  68         GPIO22_GPIO, /* On */
  69
  70         GPIO5_GPIO, /* USB_IN */
  71         GPIO32_GPIO, /* Pen IRQ */
  72
  73         GPIO7_GPIO, /* Jacket Detect */
  74         GPIO14_GPIO, /* BAT0_CRG */
  75         GPIO12_GPIO, /* BAT1_CRG */
  76         GPIO17_GPIO, /* BAT0_LOW */
  77         GPIO84_GPIO, /* BAT1_LOW */
  78         GPIO38_GPIO, /* BAT_LOCK */
  79
  80         GPIO11_3_6MHz,
  81         GPIO15_GPIO, /* TC6393XB IRQ */
  82         GPIO18_RDY,
  83         GPIO27_GPIO, /* LCD Sync */
  84
  85         /* MMC */
  86         GPIO6_MMC_CLK,
  87         GPIO8_MMC_CS0,
  88         GPIO9_GPIO, /* Detect */
  89         // GPIO10 nSD_INT
  90
  91         /* CF */
  92         GPIO13_GPIO, /* CD_IRQ */
  93         GPIO21_GPIO, /* Main Slot IRQ */
  94         GPIO36_GPIO, /* Jacket Slot IRQ */
  95         GPIO48_nPOE,
  96         GPIO49_nPWE,
  97         GPIO50_nPIOR,
  98         GPIO51_nPIOW,
  99         GPIO52_nPCE_1,
 100         GPIO53_nPCE_2,
 101         GPIO54_nPSKTSEL,
 102         GPIO55_nPREG,
 103         GPIO56_nPWAIT,
 104         GPIO57_nIOIS16,
 105
 106         /* AC97 */
 107         GPIO31_AC97_SYNC,
 108         GPIO30_AC97_SDATA_OUT,
 109         GPIO28_AC97_BITCLK,
 110         GPIO29_AC97_SDATA_IN_0,
 111         // GPIO79 nAUD_IRQ
 112
 113         /* FFUART */
 114         GPIO34_FFUART_RXD,
 115         GPIO35_FFUART_CTS,
 116         GPIO37_FFUART_DSR,
 117         GPIO39_FFUART_TXD,
 118         GPIO40_FFUART_DTR,
 119         GPIO41_FFUART_RTS,
 120
 121         /* BTUART */
 122         GPIO42_BTUART_RXD,
 123         GPIO43_BTUART_TXD,
 124         GPIO44_BTUART_CTS,
 125         GPIO45_BTUART_RTS,
 126
 127         /* IrDA */
 128         GPIO46_STUART_RXD,
 129         GPIO47_STUART_TXD,
 130
 131         /* Keybd */
 132         GPIO58_GPIO,
 133         GPIO59_GPIO,
 134         GPIO60_GPIO,
 135         GPIO61_GPIO,
 136         GPIO62_GPIO,
 137         GPIO63_GPIO,
 138         GPIO64_GPIO,
 139         GPIO65_GPIO,
 140         GPIO66_GPIO,
 141         GPIO67_GPIO,
 142         GPIO68_GPIO,
 143         GPIO69_GPIO,
 144         GPIO70_GPIO,
 145         GPIO71_GPIO,
 146         GPIO72_GPIO,
 147         GPIO73_GPIO,
 148         GPIO74_GPIO,
 149         GPIO75_GPIO,
 150
 151         /* SPI */
 152         GPIO81_SSP2_CLK_OUT,
 153         GPIO82_SSP2_FRM_OUT,
 154         GPIO83_SSP2_TXD,
 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 = request_irq(TOSA_IRQ_GPIO_nSD_DETECT, tosa_detect_int,
 253                           IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 254                                 "MMC/SD card detect", data);
 255         if (err) {
 256                 printk(KERN_ERR "tosa_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
 257                 goto err_irq;
 258         }
 259
 260         err = gpio_request(TOSA_GPIO_SD_WP, "sd_wp");
 261         if (err) {
 262                 printk(KERN_ERR "tosa_mci_init: can't request SD_WP gpio\n");
 263                 goto err_gpio_wp;
 264         }
 265         err = gpio_direction_input(TOSA_GPIO_SD_WP);
 266         if (err)
 267                 goto err_gpio_wp_dir;
 268
 269         err = gpio_request(TOSA_GPIO_PWR_ON, "sd_pwr");
 270         if (err) {
 271                 printk(KERN_ERR "tosa_mci_init: can't request SD_PWR gpio\n");
 272                 goto err_gpio_pwr;
 273         }
 274         err = gpio_direction_output(TOSA_GPIO_PWR_ON, 0);
 275         if (err)
 276                 goto err_gpio_pwr_dir;
 277
 278         return 0;
 279
 280 err_gpio_pwr_dir:
 281         gpio_free(TOSA_GPIO_PWR_ON);
 282 err_gpio_pwr:
 283 err_gpio_wp_dir:
 284         gpio_free(TOSA_GPIO_SD_WP);
 285 err_gpio_wp:
 286         free_irq(TOSA_IRQ_GPIO_nSD_DETECT, data);
 287 err_irq:
 288         return err;
 289 }
 290
 291 static void tosa_mci_setpower(struct device *dev, unsigned int vdd)
 292 {
 293         struct pxamci_platform_data* p_d = dev->platform_data;
 294
 295         if (( 1 << vdd) & p_d->ocr_mask) {
 296                 gpio_set_value(TOSA_GPIO_PWR_ON, 1);
 297         } else {
 298                 gpio_set_value(TOSA_GPIO_PWR_ON, 0);
 299         }
 300 }
 301
 302 static int tosa_mci_get_ro(struct device *dev)
 303 {
 304         return gpio_get_value(TOSA_GPIO_SD_WP);
 305 }
 306
 307 static void tosa_mci_exit(struct device *dev, void *data)
 308 {
 309         gpio_free(TOSA_GPIO_PWR_ON);
 310         gpio_free(TOSA_GPIO_SD_WP);
 311         free_irq(TOSA_IRQ_GPIO_nSD_DETECT, data);
 312 }
 313
 314 static struct pxamci_platform_data tosa_mci_platform_data = {
 315         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 316         .init           = tosa_mci_init,
 317         .get_ro         = tosa_mci_get_ro,
 318         .setpower       = tosa_mci_setpower,
 319         .exit           = tosa_mci_exit,
 320 };
 321
 322 /*
 323  * Irda
 324  */
 325 static int tosa_irda_startup(struct device *dev)
 326 {
 327         int ret;
 328
 329         ret = gpio_request(TOSA_GPIO_IR_POWERDWN, "IrDA powerdown");
 330         if (ret)
 331                 return ret;
 332
 333         ret = gpio_direction_output(TOSA_GPIO_IR_POWERDWN, 0);
 334         if (ret)
 335                 gpio_free(TOSA_GPIO_IR_POWERDWN);
 336
 337         return ret;
 338         }
 339
 340 static void tosa_irda_shutdown(struct device *dev)
 341 {
 342         gpio_free(TOSA_GPIO_IR_POWERDWN);
 343 }
 344
 345 static void tosa_irda_transceiver_mode(struct device *dev, int mode)
 346 {
 347         gpio_set_value(TOSA_GPIO_IR_POWERDWN, !(mode & IR_OFF));
 348 }
 349
 350 static struct pxaficp_platform_data tosa_ficp_platform_data = {
 351         .transceiver_cap  = IR_SIRMODE | IR_OFF,
 352         .transceiver_mode = tosa_irda_transceiver_mode,
 353         .startup = tosa_irda_startup,
 354         .shutdown = tosa_irda_shutdown,
 355 };
 356
 357 /*
 358  * Tosa Keyboard
 359  */
 360 static struct platform_device tosakbd_device = {
 361         .name           = "tosa-keyboard",
 362         .id             = -1,
 363 };
 364
 365 static struct gpio_keys_button tosa_gpio_keys[] = {
 366         /*
 367          * Two following keys are directly tied to "ON" button of tosa. Why?
 368          * The first one can be used as a wakeup source, the second can't;
 369          * also the first one is OR of ac_powered and on_button.
 370          */
 371         {
 372                 .type   = EV_PWR,
 373                 .code   = KEY_RESERVED,
 374                 .gpio   = TOSA_GPIO_POWERON,
 375                 .desc   = "Poweron",
 376                 .wakeup = 1,
 377                 .active_low = 1,
 378         },
 379         {
 380                 .type   = EV_PWR,
 381                 .code   = KEY_SUSPEND,
 382                 .gpio   = TOSA_GPIO_ON_KEY,
 383                 .desc   = "On key",
 384                 /*
 385                  * can't be used as wakeup
 386                  * .wakeup      = 1,
 387                  */
 388                 .active_low = 1,
 389         },
 390         {
 391                 .type   = EV_KEY,
 392                 .code   = TOSA_KEY_RECORD,
 393                 .gpio   = TOSA_GPIO_RECORD_BTN,
 394                 .desc   = "Record Button",
 395                 .wakeup = 1,
 396                 .active_low = 1,
 397         },
 398         {
 399                 .type   = EV_KEY,
 400                 .code   = TOSA_KEY_SYNC,
 401                 .gpio   = TOSA_GPIO_SYNC,
 402                 .desc   = "Sync Button",
 403                 .wakeup = 1,
 404                 .active_low = 1,
 405         },
 406 };
 407
 408 static struct gpio_keys_platform_data tosa_gpio_keys_platform_data = {
 409         .buttons        = tosa_gpio_keys,
 410         .nbuttons       = ARRAY_SIZE(tosa_gpio_keys),
 411 };
 412
 413 static struct platform_device tosa_gpio_keys_device = {
 414         .name   = "gpio-keys",
 415         .id     = -1,
 416         .dev    = {
 417                 .platform_data  = &tosa_gpio_keys_platform_data,
 418         },
 419 };
 420
 421 /*
 422  * Tosa LEDs
 423  */
 424 static struct gpio_led tosa_gpio_leds[] = {
 425         {
 426                 .name                   = "tosa:amber:charge",
 427                 .default_trigger        = "main-battery-charging",
 428                 .gpio                   = TOSA_GPIO_CHRG_ERR_LED,
 429         },
 430         {
 431                 .name                   = "tosa:green:mail",
 432                 .default_trigger        = "nand-disk",
 433                 .gpio                   = TOSA_GPIO_NOTE_LED,
 434         },
 435         {
 436                 .name                   = "tosa:dual:wlan",
 437                 .default_trigger        = "none",
 438                 .gpio                   = TOSA_GPIO_WLAN_LED,
 439         },
 440         {
 441                 .name                   = "tosa:blue:bluetooth",
 442                 .default_trigger        = "none",
 443                 .gpio                   = TOSA_GPIO_BT_LED,
 444         },
 445 };
 446
 447 static struct gpio_led_platform_data tosa_gpio_leds_platform_data = {
 448         .leds           = tosa_gpio_leds,
 449         .num_leds       = ARRAY_SIZE(tosa_gpio_leds),
 450 };
 451
 452 static struct platform_device tosaled_device = {
 453         .name   = "leds-gpio",
 454         .id     = -1,
 455         .dev    = {
 456                 .platform_data  = &tosa_gpio_leds_platform_data,
 457         },
 458 };
 459
 460 static struct platform_device *devices[] __initdata = {
 461         &tosascoop_device,
 462         &tosascoop_jc_device,
 463         &tosakbd_device,
 464         &tosa_gpio_keys_device,
 465         &tosaled_device,
 466 };
 467
 468 static void tosa_poweroff(void)
 469 {
 470         pxa_gpio_mode(TOSA_GPIO_ON_RESET | GPIO_OUT);
 471         GPSR(TOSA_GPIO_ON_RESET) = GPIO_bit(TOSA_GPIO_ON_RESET);
 472
 473         mdelay(1000);
 474         arm_machine_restart('h');
 475 }
 476
 477 static void tosa_restart(char mode)
 478 {
 479         /* Bootloader magic for a reboot */
 480         if((MSC0 & 0xffff0000) == 0x7ff00000)
 481                 MSC0 = (MSC0 & 0xffff) | 0x7ee00000;
 482
 483         tosa_poweroff();
 484 }
 485
 486 static void __init tosa_init(void)
 487 {
 488         pxa2xx_mfp_config(ARRAY_AND_SIZE(tosa_pin_config));
 489         gpio_set_wake(MFP_PIN_GPIO1, 1);
 490         /* We can't pass to gpio-keys since it will drop the Reset altfunc */
 491
 492         pm_power_off = tosa_poweroff;
 493         arm_pm_restart = tosa_restart;
 494
 495         PCFR |= PCFR_OPDE;
 496
 497         /* enable batt_fault */
 498         PMCR = 0x01;
 499
 500         pxa_set_mci_info(&tosa_mci_platform_data);
 501         pxa_set_udc_info(&udc_info);
 502         pxa_set_ficp_info(&tosa_ficp_platform_data);
 503         pxa_set_i2c_info(NULL);
 504         platform_scoop_config = &tosa_pcmcia_config;
 505
 506         platform_add_devices(devices, ARRAY_SIZE(devices));
 507 }
 508
 509 static void __init fixup_tosa(struct machine_desc *desc,
 510                 struct tag *tags, char **cmdline, struct meminfo *mi)
 511 {
 512         sharpsl_save_param();
 513         mi->nr_banks=1;
 514         mi->bank[0].start = 0xa0000000;
 515         mi->bank[0].node = 0;
 516         mi->bank[0].size = (64*1024*1024);
 517 }
 518
 519 MACHINE_START(TOSA, "SHARP Tosa")
 520         .phys_io        = 0x40000000,
 521         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 522         .fixup          = fixup_tosa,
 523         .map_io         = pxa_map_io,
 524         .init_irq       = pxa25x_init_irq,
 525         .init_machine   = tosa_init,
 526         .timer          = &pxa_timer,
 527 MACHINE_END