arch/arm/mach-pxa/magician.c

   1 /*
   2  * Support for HTC Magician PDA phones:
   3  * i-mate JAM, O2 Xda mini, Orange SPV M500, Qtek s100, Qtek s110
   4  * and T-Mobile MDA Compact.
   5  *
   6  * Copyright (c) 2006-2007 Philipp Zabel
   7  *
   8  * Based on hx4700.c, spitz.c and others.
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  *
  14  */
  15
  16 #include <linux/kernel.h>
  17 #include <linux/init.h>
  18 #include <linux/platform_device.h>
  19 #include <linux/delay.h>
  20 #include <linux/gpio_keys.h>
  21 #include <linux/input.h>
  22 #include <linux/mfd/htc-egpio.h>
  23 #include <linux/mtd/mtd.h>
  24 #include <linux/mtd/map.h>
  25 #include <linux/mtd/physmap.h>
  26 #include <linux/pda_power.h>
  27
  28 #include <asm/gpio.h>
  29 #include <asm/hardware.h>
  30 #include <asm/mach-types.h>
  31 #include <asm/mach/arch.h>
  32 #include <asm/arch/magician.h>
  33 #include <asm/arch/pxa-regs.h>
  34 #include <asm/arch/pxafb.h>
  35 #include <asm/arch/i2c.h>
  36 #include <asm/arch/mmc.h>
  37 #include <asm/arch/irda.h>
  38 #include <asm/arch/ohci.h>
  39
  40 #include "generic.h"
  41
  42 /*
  43  * IRDA
  44  */
  45
  46 static void magician_irda_transceiver_mode(struct device *dev, int mode)
  47 {
  48         gpio_set_value(GPIO83_MAGICIAN_nIR_EN, mode & IR_OFF);
  49 }
  50
  51 static struct pxaficp_platform_data magician_ficp_info = {
  52         .transceiver_cap  = IR_SIRMODE | IR_OFF,
  53         .transceiver_mode = magician_irda_transceiver_mode,
  54 };
  55
  56 /*
  57  * GPIO Keys
  58  */
  59
  60 static struct gpio_keys_button magician_button_table[] = {
  61         {KEY_POWER,      GPIO0_MAGICIAN_KEY_POWER,      0, "Power button"},
  62         {KEY_ESC,        GPIO37_MAGICIAN_KEY_HANGUP,    0, "Hangup button"},
  63         {KEY_F10,        GPIO38_MAGICIAN_KEY_CONTACTS,  0, "Contacts button"},
  64         {KEY_CALENDAR,   GPIO90_MAGICIAN_KEY_CALENDAR,  0, "Calendar button"},
  65         {KEY_CAMERA,     GPIO91_MAGICIAN_KEY_CAMERA,    0, "Camera button"},
  66         {KEY_UP,         GPIO93_MAGICIAN_KEY_UP,        0, "Up button"},
  67         {KEY_DOWN,       GPIO94_MAGICIAN_KEY_DOWN,      0, "Down button"},
  68         {KEY_LEFT,       GPIO95_MAGICIAN_KEY_LEFT,      0, "Left button"},
  69         {KEY_RIGHT,      GPIO96_MAGICIAN_KEY_RIGHT,     0, "Right button"},
  70         {KEY_KPENTER,    GPIO97_MAGICIAN_KEY_ENTER,     0, "Action button"},
  71         {KEY_RECORD,     GPIO98_MAGICIAN_KEY_RECORD,    0, "Record button"},
  72         {KEY_VOLUMEUP,   GPIO100_MAGICIAN_KEY_VOL_UP,   0, "Volume up"},
  73         {KEY_VOLUMEDOWN, GPIO101_MAGICIAN_KEY_VOL_DOWN, 0, "Volume down"},
  74         {KEY_PHONE,      GPIO102_MAGICIAN_KEY_PHONE,    0, "Phone button"},
  75         {KEY_PLAY,       GPIO99_MAGICIAN_HEADPHONE_IN,  0, "Headset button"},
  76 };
  77
  78 static struct gpio_keys_platform_data gpio_keys_data = {
  79         .buttons  = magician_button_table,
  80         .nbuttons = ARRAY_SIZE(magician_button_table),
  81 };
  82
  83 static struct platform_device gpio_keys = {
  84         .name = "gpio-keys",
  85         .dev  = {
  86                 .platform_data = &gpio_keys_data,
  87         },
  88         .id   = -1,
  89 };
  90
  91
  92 /*
  93  * EGPIO (Xilinx CPLD)
  94  *
  95  * 7 32-bit aligned 8-bit registers: 3x output, 1x irq, 3x input
  96  */
  97
  98 static struct resource egpio_resources[] = {
  99         [0] = {
 100                 .start = PXA_CS3_PHYS,
 101                 .end   = PXA_CS3_PHYS + 0x20,
 102                 .flags = IORESOURCE_MEM,
 103         },
 104         [1] = {
 105                 .start = gpio_to_irq(GPIO13_MAGICIAN_CPLD_IRQ),
 106                 .end   = gpio_to_irq(GPIO13_MAGICIAN_CPLD_IRQ),
 107                 .flags = IORESOURCE_IRQ,
 108         },
 109 };
 110
 111 static struct htc_egpio_chip egpio_chips[] = {
 112         [0] = {
 113                 .reg_start = 0,
 114                 .gpio_base = MAGICIAN_EGPIO(0, 0),
 115                 .num_gpios = 24,
 116                 .direction = HTC_EGPIO_OUTPUT,
 117                 .initial_values = 0x40, /* EGPIO_MAGICIAN_GSM_RESET */
 118         },
 119         [1] = {
 120                 .reg_start = 4,
 121                 .gpio_base = MAGICIAN_EGPIO(4, 0),
 122                 .num_gpios = 24,
 123                 .direction = HTC_EGPIO_INPUT,
 124         },
 125 };
 126
 127 static struct htc_egpio_platform_data egpio_info = {
 128         .reg_width    = 8,
 129         .bus_width    = 32,
 130         .irq_base     = IRQ_BOARD_START,
 131         .num_irqs     = 4,
 132         .ack_register = 3,
 133         .chip         = egpio_chips,
 134         .num_chips    = ARRAY_SIZE(egpio_chips),
 135 };
 136
 137 static struct platform_device egpio = {
 138         .name          = "htc-egpio",
 139         .id            = -1,
 140         .resource      = egpio_resources,
 141         .num_resources = ARRAY_SIZE(egpio_resources),
 142         .dev = {
 143                 .platform_data = &egpio_info,
 144         },
 145 };
 146
 147 /*
 148  * LCD - Toppoly TD028STEB1 or Samsung LTP280QV
 149  */
 150
 151 static struct pxafb_mode_info toppoly_modes[] = {
 152         {
 153                 .pixclock     = 96153,
 154                 .bpp          = 16,
 155                 .xres         = 240,
 156                 .yres         = 320,
 157                 .hsync_len    = 11,
 158                 .vsync_len    = 3,
 159                 .left_margin  = 19,
 160                 .upper_margin = 2,
 161                 .right_margin = 10,
 162                 .lower_margin = 2,
 163                 .sync         = 0,
 164         },
 165 };
 166
 167 static struct pxafb_mode_info samsung_modes[] = {
 168         {
 169                 .pixclock     = 96153,
 170                 .bpp          = 16,
 171                 .xres         = 240,
 172                 .yres         = 320,
 173                 .hsync_len    = 8,
 174                 .vsync_len    = 4,
 175                 .left_margin  = 9,
 176                 .upper_margin = 4,
 177                 .right_margin = 9,
 178                 .lower_margin = 4,
 179                 .sync         = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 180         },
 181 };
 182
 183 static void toppoly_lcd_power(int on, struct fb_var_screeninfo *si)
 184 {
 185         pr_debug("Toppoly LCD power\n");
 186
 187         if (on) {
 188                 pr_debug("on\n");
 189                 gpio_set_value(EGPIO_MAGICIAN_TOPPOLY_POWER, 1);
 190                 gpio_set_value(GPIO106_MAGICIAN_LCD_POWER_3, 1);
 191                 udelay(2000);
 192                 gpio_set_value(EGPIO_MAGICIAN_LCD_POWER, 1);
 193                 udelay(2000);
 194                 /* FIXME: enable LCDC here */
 195                 udelay(2000);
 196                 gpio_set_value(GPIO104_MAGICIAN_LCD_POWER_1, 1);
 197                 udelay(2000);
 198                 gpio_set_value(GPIO105_MAGICIAN_LCD_POWER_2, 1);
 199         } else {
 200                 pr_debug("off\n");
 201                 msleep(15);
 202                 gpio_set_value(GPIO105_MAGICIAN_LCD_POWER_2, 0);
 203                 udelay(500);
 204                 gpio_set_value(GPIO104_MAGICIAN_LCD_POWER_1, 0);
 205                 udelay(1000);
 206                 gpio_set_value(GPIO106_MAGICIAN_LCD_POWER_3, 0);
 207                 gpio_set_value(EGPIO_MAGICIAN_LCD_POWER, 0);
 208         }
 209 }
 210
 211 static void samsung_lcd_power(int on, struct fb_var_screeninfo *si)
 212 {
 213         pr_debug("Samsung LCD power\n");
 214
 215         if (on) {
 216                 pr_debug("on\n");
 217                 if (system_rev < 3)
 218                         gpio_set_value(GPIO75_MAGICIAN_SAMSUNG_POWER, 1);
 219                 else
 220                         gpio_set_value(EGPIO_MAGICIAN_LCD_POWER, 1);
 221                 mdelay(10);
 222                 gpio_set_value(GPIO106_MAGICIAN_LCD_POWER_3, 1);
 223                 mdelay(10);
 224                 gpio_set_value(GPIO104_MAGICIAN_LCD_POWER_1, 1);
 225                 mdelay(30);
 226                 gpio_set_value(GPIO105_MAGICIAN_LCD_POWER_2, 1);
 227                 mdelay(10);
 228         } else {
 229                 pr_debug("off\n");
 230                 mdelay(10);
 231                 gpio_set_value(GPIO105_MAGICIAN_LCD_POWER_2, 0);
 232                 mdelay(30);
 233                 gpio_set_value(GPIO104_MAGICIAN_LCD_POWER_1, 0);
 234                 mdelay(10);
 235                 gpio_set_value(GPIO106_MAGICIAN_LCD_POWER_3, 0);
 236                 mdelay(10);
 237                 if (system_rev < 3)
 238                         gpio_set_value(GPIO75_MAGICIAN_SAMSUNG_POWER, 0);
 239                 else
 240                         gpio_set_value(EGPIO_MAGICIAN_LCD_POWER, 0);
 241         }
 242 }
 243
 244 static struct pxafb_mach_info toppoly_info = {
 245         .modes           = toppoly_modes,
 246         .num_modes       = 1,
 247         .fixed_modes     = 1,
 248         .lccr0           = LCCR0_Color | LCCR0_Sngl | LCCR0_Act,
 249         .lccr3           = LCCR3_PixRsEdg,
 250         .pxafb_lcd_power = toppoly_lcd_power,
 251 };
 252
 253 static struct pxafb_mach_info samsung_info = {
 254         .modes           = samsung_modes,
 255         .num_modes       = 1,
 256         .fixed_modes     = 1,
 257         .lccr0           = LCCR0_LDDALT | LCCR0_Color | LCCR0_Sngl | LCCR0_Act,
 258         .lccr3           = LCCR3_PixFlEdg,
 259         .pxafb_lcd_power = samsung_lcd_power,
 260 };
 261
 262 /*
 263  * Backlight
 264  */
 265
 266 static void magician_set_bl_intensity(int intensity)
 267 {
 268         if (intensity) {
 269                 PWM_CTRL0 = 1;
 270                 PWM_PERVAL0 = 0xc8;
 271                 if (intensity > 0xc7) {
 272                         PWM_PWDUTY0 = intensity - 0x48;
 273                         gpio_set_value(EGPIO_MAGICIAN_BL_POWER2, 1);
 274                 } else {
 275                         PWM_PWDUTY0 = intensity;
 276                         gpio_set_value(EGPIO_MAGICIAN_BL_POWER2, 0);
 277                 }
 278                 gpio_set_value(EGPIO_MAGICIAN_BL_POWER, 1);
 279                 pxa_set_cken(CKEN_PWM0, 1);
 280         } else {
 281                 /* PWM_PWDUTY0 = intensity; */
 282                 gpio_set_value(EGPIO_MAGICIAN_BL_POWER, 0);
 283                 pxa_set_cken(CKEN_PWM0, 0);
 284         }
 285 }
 286
 287 static struct generic_bl_info backlight_info = {
 288         .default_intensity = 0x64,
 289         .limit_mask        = 0x0b,
 290         .max_intensity     = 0xc7+0x48,
 291         .set_bl_intensity  = magician_set_bl_intensity,
 292 };
 293
 294 static struct platform_device backlight = {
 295         .name = "generic-bl",
 296         .dev  = {
 297                 .platform_data = &backlight_info,
 298         },
 299         .id   = -1,
 300 };
 301
 302
 303 /*
 304  * External power
 305  */
 306
 307 static int magician_is_ac_online(void)
 308 {
 309         return gpio_get_value(EGPIO_MAGICIAN_CABLE_STATE_AC);
 310 }
 311
 312 static int magician_is_usb_online(void)
 313 {
 314         return gpio_get_value(EGPIO_MAGICIAN_CABLE_STATE_USB);
 315 }
 316
 317 static void magician_set_charge(int flags)
 318 {
 319         gpio_set_value(GPIO30_MAGICIAN_nCHARGE_EN, !flags);
 320         gpio_set_value(EGPIO_MAGICIAN_CHARGE_EN, flags);
 321 }
 322
 323 static struct pda_power_pdata power_supply_info = {
 324         .is_ac_online = magician_is_ac_online,
 325         .is_usb_online = magician_is_usb_online,
 326         .set_charge = magician_set_charge,
 327 };
 328
 329 static struct resource power_supply_resources[] = {
 330         [0] = {
 331                 .name  = "ac",
 332                 .flags = IORESOURCE_IRQ,
 333                 .start = IRQ_MAGICIAN_AC,
 334                 .end   = IRQ_MAGICIAN_AC,
 335         },
 336         [1] = {
 337                 .name  = "usb",
 338                 .flags = IORESOURCE_IRQ,
 339                 .start = IRQ_MAGICIAN_AC,
 340                 .end   = IRQ_MAGICIAN_AC,
 341         },
 342 };
 343
 344 static struct platform_device power_supply = {
 345         .name = "pda-power",
 346         .id   = -1,
 347         .dev  = {
 348                 .platform_data = &power_supply_info,
 349         },
 350         .resource      = power_supply_resources,
 351         .num_resources = ARRAY_SIZE(power_supply_resources),
 352 };
 353
 354
 355 /*
 356  * MMC/SD
 357  */
 358
 359 static int magician_mci_init(struct device *dev,
 360                                 irq_handler_t detect_irq, void *data)
 361 {
 362         return request_irq(IRQ_MAGICIAN_SD, detect_irq,
 363                                 IRQF_DISABLED | IRQF_SAMPLE_RANDOM,
 364                                 "MMC card detect", data);
 365 }
 366
 367 static void magician_mci_setpower(struct device *dev, unsigned int vdd)
 368 {
 369         struct pxamci_platform_data *pdata = dev->platform_data;
 370
 371         gpio_set_value(EGPIO_MAGICIAN_SD_POWER, (1 << vdd) & pdata->ocr_mask);
 372 }
 373
 374 static int magician_mci_get_ro(struct device *dev)
 375 {
 376         return (!gpio_get_value(EGPIO_MAGICIAN_nSD_READONLY));
 377 }
 378
 379 static void magician_mci_exit(struct device *dev, void *data)
 380 {
 381         free_irq(IRQ_MAGICIAN_SD, data);
 382 }
 383
 384 static struct pxamci_platform_data magician_mci_info = {
 385         .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
 386         .init     = magician_mci_init,
 387         .get_ro   = magician_mci_get_ro,
 388         .setpower = magician_mci_setpower,
 389         .exit     = magician_mci_exit,
 390 };
 391
 392
 393 /*
 394  * USB OHCI
 395  */
 396
 397 static int magician_ohci_init(struct device *dev)
 398 {
 399         UHCHR = (UHCHR | UHCHR_SSEP2 | UHCHR_PCPL | UHCHR_CGR) &
 400             ~(UHCHR_SSEP1 | UHCHR_SSEP3 | UHCHR_SSE);
 401
 402         return 0;
 403 }
 404
 405 static struct pxaohci_platform_data magician_ohci_info = {
 406         .port_mode    = PMM_PERPORT_MODE,
 407         .init         = magician_ohci_init,
 408         .power_budget = 0,
 409 };
 410
 411
 412 /*
 413  * StrataFlash
 414  */
 415
 416 static void magician_set_vpp(struct map_info *map, int vpp)
 417 {
 418         gpio_set_value(EGPIO_MAGICIAN_FLASH_VPP, vpp);
 419 }
 420
 421 #define PXA_CS_SIZE             0x04000000
 422
 423 static struct resource strataflash_resource = {
 424         .start = PXA_CS0_PHYS,
 425         .end   = PXA_CS0_PHYS + PXA_CS_SIZE - 1,
 426         .flags = IORESOURCE_MEM,
 427 };
 428
 429 static struct physmap_flash_data strataflash_data = {
 430         .width = 4,
 431         .set_vpp = magician_set_vpp,
 432 };
 433
 434 static struct platform_device strataflash = {
 435         .name          = "physmap-flash",
 436         .id            = -1,
 437         .resource      = &strataflash_resource,
 438         .num_resources = 1,
 439         .dev = {
 440                 .platform_data = &strataflash_data,
 441         },
 442 };
 443
 444 /*
 445  * Platform devices
 446  */
 447
 448 static struct platform_device *devices[] __initdata = {
 449         &gpio_keys,
 450         &egpio,
 451         &backlight,
 452         &power_supply,
 453         &strataflash,
 454 };
 455
 456 static void __init magician_init(void)
 457 {
 458         void __iomem *cpld;
 459         int lcd_select;
 460
 461         platform_add_devices(devices, ARRAY_SIZE(devices));
 462         pxa_set_i2c_info(NULL);
 463         pxa_set_mci_info(&magician_mci_info);
 464         pxa_set_ohci_info(&magician_ohci_info);
 465         pxa_set_ficp_info(&magician_ficp_info);
 466
 467         /* Check LCD type we have */
 468         cpld = ioremap_nocache(PXA_CS3_PHYS, 0x1000);
 469         if (cpld) {
 470                 u8 board_id = __raw_readb(cpld+0x14);
 471                 system_rev = board_id & 0x7;
 472                 lcd_select = board_id & 0x8;
 473                 iounmap(cpld);
 474                 pr_info("LCD type: %s\n", lcd_select ? "Samsung" : "Toppoly");
 475                 if (lcd_select && (system_rev < 3))
 476                         pxa_gpio_mode(GPIO75_MAGICIAN_SAMSUNG_POWER_MD);
 477                 pxa_gpio_mode(GPIO104_MAGICIAN_LCD_POWER_1_MD);
 478                 pxa_gpio_mode(GPIO105_MAGICIAN_LCD_POWER_2_MD);
 479                 pxa_gpio_mode(GPIO106_MAGICIAN_LCD_POWER_3_MD);
 480                 set_pxa_fb_info(lcd_select ? &samsung_info : &toppoly_info);
 481         } else
 482                 pr_err("LCD detection: CPLD mapping failed\n");
 483 }
 484
 485
 486 MACHINE_START(MAGICIAN, "HTC Magician")
 487         .phys_io = 0x40000000,
 488         .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
 489         .boot_params = 0xa0000100,
 490         .map_io = pxa_map_io,
 491         .init_irq = pxa27x_init_irq,
 492         .init_machine = magician_init,
 493         .timer = &pxa_timer,
 494 MACHINE_END