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 #include <linux/reboot.h>
  28
  29 #include <asm/setup.h>
  30 #include <asm/memory.h>
  31 #include <asm/mach-types.h>
  32 #include <asm/hardware.h>
  33 #include <asm/irq.h>
  34 #include <asm/system.h>
  35 #include <asm/arch/pxa-regs.h>
  36 #include <asm/arch/pxa2xx-regs.h>
  37 #include <asm/arch/mfp-pxa25x.h>
  38 #include <asm/arch/irda.h>
  39 #include <asm/arch/i2c.h>
  40 #include <asm/arch/mmc.h>
  41 #include <asm/arch/udc.h>
  42
  43 #include <asm/mach/arch.h>
  44 #include <asm/mach/map.h>
  45 #include <asm/mach/irq.h>
  46 #include <asm/arch/tosa.h>
  47
  48 #include <asm/hardware/scoop.h>
  49 #include <asm/mach/sharpsl_param.h>
  50
  51 #include "generic.h"
  52 #include "devices.h"
  53
  54 static unsigned long tosa_pin_config[] = {
  55         GPIO78_nCS_2, /* Scoop */
  56         GPIO80_nCS_4, /* tg6393xb */
  57         GPIO33_nCS_5, /* Scoop */
  58
  59         // GPIO76 CARD_VCC_ON1
  60
  61         GPIO19_GPIO, /* Reset out */
  62         GPIO1_RST | WAKEUP_ON_EDGE_FALL,
  63
  64         GPIO0_GPIO | WAKEUP_ON_EDGE_FALL, /* WAKE_UP */
  65         GPIO2_GPIO | WAKEUP_ON_EDGE_BOTH, /* AC_IN */
  66         GPIO3_GPIO | WAKEUP_ON_EDGE_FALL, /* RECORD */
  67         GPIO4_GPIO | WAKEUP_ON_EDGE_FALL, /* SYNC */
  68         GPIO20_GPIO, /* EAR_IN */
  69         GPIO22_GPIO, /* On */
  70
  71         GPIO5_GPIO, /* USB_IN */
  72         GPIO32_GPIO, /* Pen IRQ */
  73
  74         GPIO7_GPIO, /* Jacket Detect */
  75         GPIO14_GPIO, /* BAT0_CRG */
  76         GPIO12_GPIO, /* BAT1_CRG */
  77         GPIO17_GPIO, /* BAT0_LOW */
  78         GPIO84_GPIO, /* BAT1_LOW */
  79         GPIO38_GPIO, /* BAT_LOCK */
  80
  81         GPIO11_3_6MHz,
  82         GPIO15_GPIO, /* TC6393XB IRQ */
  83         GPIO18_RDY,
  84         GPIO27_GPIO, /* LCD Sync */
  85
  86         /* MMC */
  87         GPIO6_MMC_CLK,
  88         GPIO8_MMC_CS0,
  89         GPIO9_GPIO, /* Detect */
  90         // GPIO10 nSD_INT
  91
  92         /* CF */
  93         GPIO13_GPIO, /* CD_IRQ */
  94         GPIO21_GPIO, /* Main Slot IRQ */
  95         GPIO36_GPIO, /* Jacket Slot IRQ */
  96         GPIO48_nPOE,
  97         GPIO49_nPWE,
  98         GPIO50_nPIOR,
  99         GPIO51_nPIOW,
 100         GPIO52_nPCE_1,
 101         GPIO53_nPCE_2,
 102         GPIO54_nPSKTSEL,
 103         GPIO55_nPREG,
 104         GPIO56_nPWAIT,
 105         GPIO57_nIOIS16,
 106
 107         /* AC97 */
 108         GPIO31_AC97_SYNC,
 109         GPIO30_AC97_SDATA_OUT,
 110         GPIO28_AC97_BITCLK,
 111         GPIO29_AC97_SDATA_IN_0,
 112         // GPIO79 nAUD_IRQ
 113
 114         /* FFUART */
 115         GPIO34_FFUART_RXD,
 116         GPIO35_FFUART_CTS,
 117         GPIO37_FFUART_DSR,
 118         GPIO39_FFUART_TXD,
 119         GPIO40_FFUART_DTR,
 120         GPIO41_FFUART_RTS,
 121
 122         /* BTUART */
 123         GPIO42_BTUART_RXD,
 124         GPIO43_BTUART_TXD,
 125         GPIO44_BTUART_CTS,
 126         GPIO45_BTUART_RTS,
 127
 128         /* IrDA */
 129         GPIO46_STUART_RXD,
 130         GPIO47_STUART_TXD,
 131
 132         /* Keybd */
 133         GPIO58_GPIO | MFP_LPM_DRIVE_LOW,
 134         GPIO59_GPIO | MFP_LPM_DRIVE_LOW,
 135         GPIO60_GPIO | MFP_LPM_DRIVE_LOW,
 136         GPIO61_GPIO | MFP_LPM_DRIVE_LOW,
 137         GPIO62_GPIO | MFP_LPM_DRIVE_LOW,
 138         GPIO63_GPIO | MFP_LPM_DRIVE_LOW,
 139         GPIO64_GPIO | MFP_LPM_DRIVE_LOW,
 140         GPIO65_GPIO | MFP_LPM_DRIVE_LOW,
 141         GPIO66_GPIO | MFP_LPM_DRIVE_LOW,
 142         GPIO67_GPIO | MFP_LPM_DRIVE_LOW,
 143         GPIO68_GPIO | MFP_LPM_DRIVE_LOW,
 144         GPIO69_GPIO | MFP_LPM_DRIVE_LOW,
 145         GPIO70_GPIO | MFP_LPM_DRIVE_LOW,
 146         GPIO71_GPIO | MFP_LPM_DRIVE_LOW,
 147         GPIO72_GPIO | MFP_LPM_DRIVE_LOW,
 148         GPIO73_GPIO | MFP_LPM_DRIVE_LOW,
 149         GPIO74_GPIO | MFP_LPM_DRIVE_LOW,
 150         GPIO75_GPIO | MFP_LPM_DRIVE_LOW,
 151
 152         /* SPI */
 153         GPIO81_SSP2_CLK_OUT,
 154         GPIO82_SSP2_FRM_OUT,
 155         GPIO83_SSP2_TXD,
 156 };
 157
 158 /*
 159  * SCOOP Device
 160  */
 161 static struct resource tosa_scoop_resources[] = {
 162         [0] = {
 163                 .start  = TOSA_CF_PHYS,
 164                 .end    = TOSA_CF_PHYS + 0xfff,
 165                 .flags  = IORESOURCE_MEM,
 166         },
 167 };
 168
 169 static struct scoop_config tosa_scoop_setup = {
 170         .io_dir         = TOSA_SCOOP_IO_DIR,
 171         .gpio_base      = TOSA_SCOOP_GPIO_BASE,
 172 };
 173
 174 static struct platform_device tosascoop_device = {
 175         .name           = "sharp-scoop",
 176         .id             = 0,
 177         .dev            = {
 178                 .platform_data  = &tosa_scoop_setup,
 179         },
 180         .num_resources  = ARRAY_SIZE(tosa_scoop_resources),
 181         .resource       = tosa_scoop_resources,
 182 };
 183
 184
 185 /*
 186  * SCOOP Device Jacket
 187  */
 188 static struct resource tosa_scoop_jc_resources[] = {
 189         [0] = {
 190                 .start          = TOSA_SCOOP_PHYS + 0x40,
 191                 .end            = TOSA_SCOOP_PHYS + 0xfff,
 192                 .flags          = IORESOURCE_MEM,
 193         },
 194 };
 195
 196 static struct scoop_config tosa_scoop_jc_setup = {
 197         .io_dir         = TOSA_SCOOP_JC_IO_DIR,
 198         .gpio_base      = TOSA_SCOOP_JC_GPIO_BASE,
 199 };
 200
 201 static struct platform_device tosascoop_jc_device = {
 202         .name           = "sharp-scoop",
 203         .id             = 1,
 204         .dev            = {
 205                 .platform_data  = &tosa_scoop_jc_setup,
 206                 .parent         = &tosascoop_device.dev,
 207         },
 208         .num_resources  = ARRAY_SIZE(tosa_scoop_jc_resources),
 209         .resource       = tosa_scoop_jc_resources,
 210 };
 211
 212 /*
 213  * PCMCIA
 214  */
 215 static struct scoop_pcmcia_dev tosa_pcmcia_scoop[] = {
 216 {
 217         .dev        = &tosascoop_device.dev,
 218         .irq        = TOSA_IRQ_GPIO_CF_IRQ,
 219         .cd_irq     = TOSA_IRQ_GPIO_CF_CD,
 220         .cd_irq_str = "PCMCIA0 CD",
 221 },{
 222         .dev        = &tosascoop_jc_device.dev,
 223         .irq        = TOSA_IRQ_GPIO_JC_CF_IRQ,
 224         .cd_irq     = -1,
 225 },
 226 };
 227
 228 static struct scoop_pcmcia_config tosa_pcmcia_config = {
 229         .devs         = &tosa_pcmcia_scoop[0],
 230         .num_devs     = 2,
 231 };
 232
 233 /*
 234  * USB Device Controller
 235  */
 236 static struct pxa2xx_udc_mach_info udc_info __initdata = {
 237         .gpio_pullup            = TOSA_GPIO_USB_PULLUP,
 238         .gpio_vbus              = TOSA_GPIO_USB_IN,
 239         .gpio_vbus_inverted     = 1,
 240 };
 241
 242 /*
 243  * MMC/SD Device
 244  */
 245 static struct pxamci_platform_data tosa_mci_platform_data;
 246
 247 static int tosa_mci_init(struct device *dev, irq_handler_t tosa_detect_int, void *data)
 248 {
 249         int err;
 250
 251         tosa_mci_platform_data.detect_delay = msecs_to_jiffies(250);
 252
 253         err = request_irq(TOSA_IRQ_GPIO_nSD_DETECT, tosa_detect_int,
 254                           IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 255                                 "MMC/SD card detect", data);
 256         if (err) {
 257                 printk(KERN_ERR "tosa_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
 258                 goto err_irq;
 259         }
 260
 261         err = gpio_request(TOSA_GPIO_SD_WP, "sd_wp");
 262         if (err) {
 263                 printk(KERN_ERR "tosa_mci_init: can't request SD_WP gpio\n");
 264                 goto err_gpio_wp;
 265         }
 266         err = gpio_direction_input(TOSA_GPIO_SD_WP);
 267         if (err)
 268                 goto err_gpio_wp_dir;
 269
 270         err = gpio_request(TOSA_GPIO_PWR_ON, "sd_pwr");
 271         if (err) {
 272                 printk(KERN_ERR "tosa_mci_init: can't request SD_PWR gpio\n");
 273                 goto err_gpio_pwr;
 274         }
 275         err = gpio_direction_output(TOSA_GPIO_PWR_ON, 0);
 276         if (err)
 277                 goto err_gpio_pwr_dir;
 278
 279         return 0;
 280
 281 err_gpio_pwr_dir:
 282         gpio_free(TOSA_GPIO_PWR_ON);
 283 err_gpio_pwr:
 284 err_gpio_wp_dir:
 285         gpio_free(TOSA_GPIO_SD_WP);
 286 err_gpio_wp:
 287         free_irq(TOSA_IRQ_GPIO_nSD_DETECT, data);
 288 err_irq:
 289         return err;
 290 }
 291
 292 static void tosa_mci_setpower(struct device *dev, unsigned int vdd)
 293 {
 294         struct pxamci_platform_data* p_d = dev->platform_data;
 295
 296         if (( 1 << vdd) & p_d->ocr_mask) {
 297                 gpio_set_value(TOSA_GPIO_PWR_ON, 1);
 298         } else {
 299                 gpio_set_value(TOSA_GPIO_PWR_ON, 0);
 300         }
 301 }
 302
 303 static int tosa_mci_get_ro(struct device *dev)
 304 {
 305         return gpio_get_value(TOSA_GPIO_SD_WP);
 306 }
 307
 308 static void tosa_mci_exit(struct device *dev, void *data)
 309 {
 310         gpio_free(TOSA_GPIO_PWR_ON);
 311         gpio_free(TOSA_GPIO_SD_WP);
 312         free_irq(TOSA_IRQ_GPIO_nSD_DETECT, data);
 313 }
 314
 315 static struct pxamci_platform_data tosa_mci_platform_data = {
 316         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 317         .init           = tosa_mci_init,
 318         .get_ro         = tosa_mci_get_ro,
 319         .setpower       = tosa_mci_setpower,
 320         .exit           = tosa_mci_exit,
 321 };
 322
 323 /*
 324  * Irda
 325  */
 326 static int tosa_irda_startup(struct device *dev)
 327 {
 328         int ret;
 329
 330         ret = gpio_request(TOSA_GPIO_IR_POWERDWN, "IrDA powerdown");
 331         if (ret)
 332                 return ret;
 333
 334         ret = gpio_direction_output(TOSA_GPIO_IR_POWERDWN, 0);
 335         if (ret)
 336                 gpio_free(TOSA_GPIO_IR_POWERDWN);
 337
 338         return ret;
 339         }
 340
 341 static void tosa_irda_shutdown(struct device *dev)
 342 {
 343         gpio_free(TOSA_GPIO_IR_POWERDWN);
 344 }
 345
 346 static void tosa_irda_transceiver_mode(struct device *dev, int mode)
 347 {
 348         gpio_set_value(TOSA_GPIO_IR_POWERDWN, !(mode & IR_OFF));
 349 }
 350
 351 static struct pxaficp_platform_data tosa_ficp_platform_data = {
 352         .transceiver_cap  = IR_SIRMODE | IR_OFF,
 353         .transceiver_mode = tosa_irda_transceiver_mode,
 354         .startup = tosa_irda_startup,
 355         .shutdown = tosa_irda_shutdown,
 356 };
 357
 358 /*
 359  * Tosa Keyboard
 360  */
 361 static struct platform_device tosakbd_device = {
 362         .name           = "tosa-keyboard",
 363         .id             = -1,
 364 };
 365
 366 static struct gpio_keys_button tosa_gpio_keys[] = {
 367         /*
 368          * Two following keys are directly tied to "ON" button of tosa. Why?
 369          * The first one can be used as a wakeup source, the second can't;
 370          * also the first one is OR of ac_powered and on_button.
 371          */
 372         {
 373                 .type   = EV_PWR,
 374                 .code   = KEY_RESERVED,
 375                 .gpio   = TOSA_GPIO_POWERON,
 376                 .desc   = "Poweron",
 377                 .wakeup = 1,
 378                 .active_low = 1,
 379         },
 380         {
 381                 .type   = EV_PWR,
 382                 .code   = KEY_SUSPEND,
 383                 .gpio   = TOSA_GPIO_ON_KEY,
 384                 .desc   = "On key",
 385                 /*
 386                  * can't be used as wakeup
 387                  * .wakeup      = 1,
 388                  */
 389                 .active_low = 1,
 390         },
 391         {
 392                 .type   = EV_KEY,
 393                 .code   = TOSA_KEY_RECORD,
 394                 .gpio   = TOSA_GPIO_RECORD_BTN,
 395                 .desc   = "Record Button",
 396                 .wakeup = 1,
 397                 .active_low = 1,
 398         },
 399         {
 400                 .type   = EV_KEY,
 401                 .code   = TOSA_KEY_SYNC,
 402                 .gpio   = TOSA_GPIO_SYNC,
 403                 .desc   = "Sync Button",
 404                 .wakeup = 1,
 405                 .active_low = 1,
 406         },
 407 };
 408
 409 static struct gpio_keys_platform_data tosa_gpio_keys_platform_data = {
 410         .buttons        = tosa_gpio_keys,
 411         .nbuttons       = ARRAY_SIZE(tosa_gpio_keys),
 412 };
 413
 414 static struct platform_device tosa_gpio_keys_device = {
 415         .name   = "gpio-keys",
 416         .id     = -1,
 417         .dev    = {
 418                 .platform_data  = &tosa_gpio_keys_platform_data,
 419         },
 420 };
 421
 422 /*
 423  * Tosa LEDs
 424  */
 425 static struct gpio_led tosa_gpio_leds[] = {
 426         {
 427                 .name                   = "tosa:amber:charge",
 428                 .default_trigger        = "main-battery-charging",
 429                 .gpio                   = TOSA_GPIO_CHRG_ERR_LED,
 430         },
 431         {
 432                 .name                   = "tosa:green:mail",
 433                 .default_trigger        = "nand-disk",
 434                 .gpio                   = TOSA_GPIO_NOTE_LED,
 435         },
 436         {
 437                 .name                   = "tosa:dual:wlan",
 438                 .default_trigger        = "none",
 439                 .gpio                   = TOSA_GPIO_WLAN_LED,
 440         },
 441         {
 442                 .name                   = "tosa:blue:bluetooth",
 443                 .default_trigger        = "none",
 444                 .gpio                   = TOSA_GPIO_BT_LED,
 445         },
 446 };
 447
 448 static struct gpio_led_platform_data tosa_gpio_leds_platform_data = {
 449         .leds           = tosa_gpio_leds,
 450         .num_leds       = ARRAY_SIZE(tosa_gpio_leds),
 451 };
 452
 453 static struct platform_device tosaled_device = {
 454         .name   = "leds-gpio",
 455         .id     = -1,
 456         .dev    = {
 457                 .platform_data  = &tosa_gpio_leds_platform_data,
 458         },
 459 };
 460
 461 static struct platform_device *devices[] __initdata = {
 462         &tosascoop_device,
 463         &tosascoop_jc_device,
 464         &tosakbd_device,
 465         &tosa_gpio_keys_device,
 466         &tosaled_device,
 467 };
 468
 469 static void tosa_poweroff(void)
 470 {
 471         arm_machine_restart('g');
 472 }
 473
 474 static void tosa_restart(char mode)
 475 {
 476         /* Bootloader magic for a reboot */
 477         if((MSC0 & 0xffff0000) == 0x7ff00000)
 478                 MSC0 = (MSC0 & 0xffff) | 0x7ee00000;
 479
 480         tosa_poweroff();
 481 }
 482
 483 static void __init tosa_init(void)
 484 {
 485         pxa2xx_mfp_config(ARRAY_AND_SIZE(tosa_pin_config));
 486         gpio_set_wake(MFP_PIN_GPIO1, 1);
 487         /* We can't pass to gpio-keys since it will drop the Reset altfunc */
 488
 489         init_gpio_reset(TOSA_GPIO_ON_RESET);
 490
 491         pm_power_off = tosa_poweroff;
 492         arm_pm_restart = tosa_restart;
 493
 494         PCFR |= PCFR_OPDE;
 495
 496         /* enable batt_fault */
 497         PMCR = 0x01;
 498
 499         pxa_set_mci_info(&tosa_mci_platform_data);
 500         pxa_set_udc_info(&udc_info);
 501         pxa_set_ficp_info(&tosa_ficp_platform_data);
 502         pxa_set_i2c_info(NULL);
 503         platform_scoop_config = &tosa_pcmcia_config;
 504
 505         platform_add_devices(devices, ARRAY_SIZE(devices));
 506 }
 507
 508 static void __init fixup_tosa(struct machine_desc *desc,
 509                 struct tag *tags, char **cmdline, struct meminfo *mi)
 510 {
 511         sharpsl_save_param();
 512         mi->nr_banks=1;
 513         mi->bank[0].start = 0xa0000000;
 514         mi->bank[0].node = 0;
 515         mi->bank[0].size = (64*1024*1024);
 516 }
 517
 518 MACHINE_START(TOSA, "SHARP Tosa")
 519         .phys_io        = 0x40000000,
 520         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 521         .fixup          = fixup_tosa,
 522         .map_io         = pxa_map_io,
 523         .init_irq       = pxa25x_init_irq,
 524         .init_machine   = tosa_init,
 525         .timer          = &pxa_timer,
 526 MACHINE_END