arch/arm/mach-s3c/mach-n30.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 //
   3 // Machine specific code for the Acer n30, Acer N35, Navman PiN 570,
   4 // Yakumo AlphaX and Airis NC05 PDAs.
   5 //
   6 // Copyright (c) 2003-2005 Simtec Electronics
   7 //      Ben Dooks <ben@simtec.co.uk>
   8 //
   9 // Copyright (c) 2005-2008 Christer Weinigel <christer@weinigel.se>
  10 //
  11 // There is a wiki with more information about the n30 port at
  12 // https://handhelds.org/moin/moin.cgi/AcerN30Documentation .
  13
  14 #include <linux/kernel.h>
  15 #include <linux/types.h>
  16
  17 #include <linux/gpio_keys.h>
  18 #include <linux/init.h>
  19 #include <linux/gpio.h>
  20 #include <linux/gpio/machine.h>
  21 #include <linux/input.h>
  22 #include <linux/interrupt.h>
  23 #include <linux/platform_device.h>
  24 #include <linux/serial_core.h>
  25 #include <linux/serial_s3c.h>
  26 #include <linux/timer.h>
  27 #include <linux/io.h>
  28 #include <linux/mmc/host.h>
  29
  30 #include "hardware-s3c24xx.h"
  31 #include <asm/irq.h>
  32 #include <asm/mach-types.h>
  33
  34 #include <linux/platform_data/fb-s3c2410.h>
  35 #include <linux/platform_data/leds-s3c24xx.h>
  36 #include "regs-gpio.h"
  37 #include "gpio-samsung.h"
  38 #include "gpio-cfg.h"
  39
  40 #include <asm/mach/arch.h>
  41 #include <asm/mach/irq.h>
  42 #include <asm/mach/map.h>
  43
  44 #include <linux/platform_data/i2c-s3c2410.h>
  45
  46 #include "cpu.h"
  47 #include "devs.h"
  48 #include <linux/platform_data/mmc-s3cmci.h>
  49 #include <linux/platform_data/usb-s3c2410_udc.h>
  50
  51 #include "s3c24xx.h"
  52
  53 static struct map_desc n30_iodesc[] __initdata = {
  54         /* nothing here yet */
  55 };
  56
  57 static struct s3c2410_uartcfg n30_uartcfgs[] = {
  58         /* Normal serial port */
  59         [0] = {
  60                 .hwport      = 0,
  61                 .flags       = 0,
  62                 .ucon        = 0x2c5,
  63                 .ulcon       = 0x03,
  64                 .ufcon       = 0x51,
  65         },
  66         /* IR port */
  67         [1] = {
  68                 .hwport      = 1,
  69                 .flags       = 0,
  70                 .uart_flags  = UPF_CONS_FLOW,
  71                 .ucon        = 0x2c5,
  72                 .ulcon       = 0x43,
  73                 .ufcon       = 0x51,
  74         },
  75         /* On the N30 the bluetooth controller is connected here.
  76          * On the N35 and variants the GPS receiver is connected here. */
  77         [2] = {
  78                 .hwport      = 2,
  79                 .flags       = 0,
  80                 .ucon        = 0x2c5,
  81                 .ulcon       = 0x03,
  82                 .ufcon       = 0x51,
  83         },
  84 };
  85
  86 static struct s3c2410_udc_mach_info n30_udc_cfg __initdata = {
  87 };
  88
  89 static struct gpiod_lookup_table n30_udc_gpio_table = {
  90         .dev_id = "s3c2410-usbgadget",
  91         .table = {
  92                 GPIO_LOOKUP("GPIOG", 1, "vbus", GPIO_ACTIVE_HIGH),
  93                 GPIO_LOOKUP("GPIOB", 3, "pullup", GPIO_ACTIVE_HIGH),
  94                 { },
  95         },
  96 };
  97
  98 static struct gpio_keys_button n30_buttons[] = {
  99         {
 100                 .gpio           = S3C2410_GPF(0),
 101                 .code           = KEY_POWER,
 102                 .desc           = "Power",
 103                 .active_low     = 0,
 104         },
 105         {
 106                 .gpio           = S3C2410_GPG(9),
 107                 .code           = KEY_UP,
 108                 .desc           = "Thumbwheel Up",
 109                 .active_low     = 0,
 110         },
 111         {
 112                 .gpio           = S3C2410_GPG(8),
 113                 .code           = KEY_DOWN,
 114                 .desc           = "Thumbwheel Down",
 115                 .active_low     = 0,
 116         },
 117         {
 118                 .gpio           = S3C2410_GPG(7),
 119                 .code           = KEY_ENTER,
 120                 .desc           = "Thumbwheel Press",
 121                 .active_low     = 0,
 122         },
 123         {
 124                 .gpio           = S3C2410_GPF(7),
 125                 .code           = KEY_HOMEPAGE,
 126                 .desc           = "Home",
 127                 .active_low     = 0,
 128         },
 129         {
 130                 .gpio           = S3C2410_GPF(6),
 131                 .code           = KEY_CALENDAR,
 132                 .desc           = "Calendar",
 133                 .active_low     = 0,
 134         },
 135         {
 136                 .gpio           = S3C2410_GPF(5),
 137                 .code           = KEY_ADDRESSBOOK,
 138                 .desc           = "Contacts",
 139                 .active_low     = 0,
 140         },
 141         {
 142                 .gpio           = S3C2410_GPF(4),
 143                 .code           = KEY_MAIL,
 144                 .desc           = "Mail",
 145                 .active_low     = 0,
 146         },
 147 };
 148
 149 static struct gpio_keys_platform_data n30_button_data = {
 150         .buttons        = n30_buttons,
 151         .nbuttons       = ARRAY_SIZE(n30_buttons),
 152 };
 153
 154 static struct platform_device n30_button_device = {
 155         .name           = "gpio-keys",
 156         .id             = -1,
 157         .dev            = {
 158                 .platform_data  = &n30_button_data,
 159         }
 160 };
 161
 162 static struct gpio_keys_button n35_buttons[] = {
 163         {
 164                 .gpio           = S3C2410_GPF(0),
 165                 .code           = KEY_POWER,
 166                 .type           = EV_PWR,
 167                 .desc           = "Power",
 168                 .active_low     = 0,
 169                 .wakeup         = 1,
 170         },
 171         {
 172                 .gpio           = S3C2410_GPG(9),
 173                 .code           = KEY_UP,
 174                 .desc           = "Joystick Up",
 175                 .active_low     = 0,
 176         },
 177         {
 178                 .gpio           = S3C2410_GPG(8),
 179                 .code           = KEY_DOWN,
 180                 .desc           = "Joystick Down",
 181                 .active_low     = 0,
 182         },
 183         {
 184                 .gpio           = S3C2410_GPG(6),
 185                 .code           = KEY_DOWN,
 186                 .desc           = "Joystick Left",
 187                 .active_low     = 0,
 188         },
 189         {
 190                 .gpio           = S3C2410_GPG(5),
 191                 .code           = KEY_DOWN,
 192                 .desc           = "Joystick Right",
 193                 .active_low     = 0,
 194         },
 195         {
 196                 .gpio           = S3C2410_GPG(7),
 197                 .code           = KEY_ENTER,
 198                 .desc           = "Joystick Press",
 199                 .active_low     = 0,
 200         },
 201         {
 202                 .gpio           = S3C2410_GPF(7),
 203                 .code           = KEY_HOMEPAGE,
 204                 .desc           = "Home",
 205                 .active_low     = 0,
 206         },
 207         {
 208                 .gpio           = S3C2410_GPF(6),
 209                 .code           = KEY_CALENDAR,
 210                 .desc           = "Calendar",
 211                 .active_low     = 0,
 212         },
 213         {
 214                 .gpio           = S3C2410_GPF(5),
 215                 .code           = KEY_ADDRESSBOOK,
 216                 .desc           = "Contacts",
 217                 .active_low     = 0,
 218         },
 219         {
 220                 .gpio           = S3C2410_GPF(4),
 221                 .code           = KEY_MAIL,
 222                 .desc           = "Mail",
 223                 .active_low     = 0,
 224         },
 225         {
 226                 .gpio           = S3C2410_GPF(3),
 227                 .code           = SW_RADIO,
 228                 .desc           = "GPS Antenna",
 229                 .active_low     = 0,
 230         },
 231         {
 232                 .gpio           = S3C2410_GPG(2),
 233                 .code           = SW_HEADPHONE_INSERT,
 234                 .desc           = "Headphone",
 235                 .active_low     = 0,
 236         },
 237 };
 238
 239 static struct gpio_keys_platform_data n35_button_data = {
 240         .buttons        = n35_buttons,
 241         .nbuttons       = ARRAY_SIZE(n35_buttons),
 242 };
 243
 244 static struct platform_device n35_button_device = {
 245         .name           = "gpio-keys",
 246         .id             = -1,
 247         .num_resources  = 0,
 248         .dev            = {
 249                 .platform_data  = &n35_button_data,
 250         }
 251 };
 252
 253 /* This is the bluetooth LED on the device. */
 254
 255 static struct gpiod_lookup_table n30_blue_led_gpio_table = {
 256         .dev_id = "s3c24xx_led.1",
 257         .table = {
 258                 GPIO_LOOKUP("GPG", 6, NULL, GPIO_ACTIVE_HIGH),
 259                 { },
 260         },
 261 };
 262
 263 static struct s3c24xx_led_platdata n30_blue_led_pdata = {
 264         .name           = "blue_led",
 265         .def_trigger    = "",
 266 };
 267
 268 /* This is the blue LED on the device. Originally used to indicate GPS activity
 269  * by flashing. */
 270
 271 static struct gpiod_lookup_table n35_blue_led_gpio_table = {
 272         .dev_id = "s3c24xx_led.1",
 273         .table = {
 274                 GPIO_LOOKUP("GPD", 8, NULL, GPIO_ACTIVE_HIGH),
 275                 { },
 276         },
 277 };
 278
 279 static struct s3c24xx_led_platdata n35_blue_led_pdata = {
 280         .name           = "blue_led",
 281         .def_trigger    = "",
 282 };
 283
 284 /* This LED is driven by the battery microcontroller, and is blinking
 285  * red, blinking green or solid green when the battery is low,
 286  * charging or full respectively.  By driving GPD9 low, it's possible
 287  * to force the LED to blink red, so call that warning LED.  */
 288
 289 static struct gpiod_lookup_table n30_warning_led_gpio_table = {
 290         .dev_id = "s3c24xx_led.2",
 291         .table = {
 292                 GPIO_LOOKUP("GPD", 9, NULL, GPIO_ACTIVE_LOW),
 293                 { },
 294         },
 295 };
 296
 297 static struct s3c24xx_led_platdata n30_warning_led_pdata = {
 298         .name           = "warning_led",
 299         .def_trigger    = "",
 300 };
 301
 302 static struct gpiod_lookup_table n35_warning_led_gpio_table = {
 303         .dev_id = "s3c24xx_led.2",
 304         .table = {
 305                 GPIO_LOOKUP("GPD", 9, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN),
 306                 { },
 307         },
 308 };
 309
 310 static struct s3c24xx_led_platdata n35_warning_led_pdata = {
 311         .name           = "warning_led",
 312         .def_trigger    = "",
 313 };
 314
 315 static struct platform_device n30_blue_led = {
 316         .name           = "s3c24xx_led",
 317         .id             = 1,
 318         .dev            = {
 319                 .platform_data  = &n30_blue_led_pdata,
 320         },
 321 };
 322
 323 static struct platform_device n35_blue_led = {
 324         .name           = "s3c24xx_led",
 325         .id             = 1,
 326         .dev            = {
 327                 .platform_data  = &n35_blue_led_pdata,
 328         },
 329 };
 330
 331 static struct platform_device n30_warning_led = {
 332         .name           = "s3c24xx_led",
 333         .id             = 2,
 334         .dev            = {
 335                 .platform_data  = &n30_warning_led_pdata,
 336         },
 337 };
 338
 339 static struct platform_device n35_warning_led = {
 340         .name           = "s3c24xx_led",
 341         .id             = 2,
 342         .dev            = {
 343                 .platform_data  = &n35_warning_led_pdata,
 344         },
 345 };
 346
 347 static struct s3c2410fb_display n30_display __initdata = {
 348         .type           = S3C2410_LCDCON1_TFT,
 349         .width          = 240,
 350         .height         = 320,
 351         .pixclock       = 170000,
 352
 353         .xres           = 240,
 354         .yres           = 320,
 355         .bpp            = 16,
 356         .left_margin    = 3,
 357         .right_margin   = 40,
 358         .hsync_len      = 40,
 359         .upper_margin   = 2,
 360         .lower_margin   = 3,
 361         .vsync_len      = 2,
 362
 363         .lcdcon5 = S3C2410_LCDCON5_INVVLINE | S3C2410_LCDCON5_INVVFRAME,
 364 };
 365
 366 static struct s3c2410fb_mach_info n30_fb_info __initdata = {
 367         .displays       = &n30_display,
 368         .num_displays   = 1,
 369         .default_display = 0,
 370         .lpcsel         = 0x06,
 371 };
 372
 373 static void n30_sdi_set_power(unsigned char power_mode, unsigned short vdd)
 374 {
 375         s3c24xx_mci_def_set_power(power_mode, vdd);
 376
 377         switch (power_mode) {
 378         case MMC_POWER_ON:
 379         case MMC_POWER_UP:
 380                 gpio_set_value(S3C2410_GPG(4), 1);
 381                 break;
 382         case MMC_POWER_OFF:
 383         default:
 384                 gpio_set_value(S3C2410_GPG(4), 0);
 385                 break;
 386         }
 387 }
 388
 389 static struct s3c24xx_mci_pdata n30_mci_cfg __initdata = {
 390         .ocr_avail      = MMC_VDD_32_33,
 391         .set_power      = n30_sdi_set_power,
 392 };
 393
 394 static struct gpiod_lookup_table n30_mci_gpio_table = {
 395         .dev_id = "s3c2410-sdi",
 396         .table = {
 397                 /* Card detect S3C2410_GPF(1) */
 398                 GPIO_LOOKUP("GPIOF", 1, "cd", GPIO_ACTIVE_LOW),
 399                 /* Write protect S3C2410_GPG(10) */
 400                 GPIO_LOOKUP("GPIOG", 10, "wp", GPIO_ACTIVE_LOW),
 401                 { },
 402                 /* bus pins */
 403                 GPIO_LOOKUP_IDX("GPIOE",  5, "bus", 0, GPIO_ACTIVE_HIGH),
 404                 GPIO_LOOKUP_IDX("GPIOE",  6, "bus", 1, GPIO_ACTIVE_HIGH),
 405                 GPIO_LOOKUP_IDX("GPIOE",  7, "bus", 2, GPIO_ACTIVE_HIGH),
 406                 GPIO_LOOKUP_IDX("GPIOE",  8, "bus", 3, GPIO_ACTIVE_HIGH),
 407                 GPIO_LOOKUP_IDX("GPIOE",  9, "bus", 4, GPIO_ACTIVE_HIGH),
 408                 GPIO_LOOKUP_IDX("GPIOE", 10, "bus", 5, GPIO_ACTIVE_HIGH),
 409         },
 410 };
 411
 412 static struct platform_device *n30_devices[] __initdata = {
 413         &s3c_device_lcd,
 414         &s3c_device_wdt,
 415         &s3c_device_i2c0,
 416         &s3c_device_iis,
 417         &s3c_device_ohci,
 418         &s3c_device_rtc,
 419         &s3c_device_usbgadget,
 420         &s3c_device_sdi,
 421         &n30_button_device,
 422         &n30_blue_led,
 423         &n30_warning_led,
 424 };
 425
 426 static struct platform_device *n35_devices[] __initdata = {
 427         &s3c_device_lcd,
 428         &s3c_device_wdt,
 429         &s3c_device_i2c0,
 430         &s3c_device_iis,
 431         &s3c_device_rtc,
 432         &s3c_device_usbgadget,
 433         &s3c_device_sdi,
 434         &n35_button_device,
 435         &n35_blue_led,
 436         &n35_warning_led,
 437 };
 438
 439 static struct s3c2410_platform_i2c __initdata n30_i2ccfg = {
 440         .flags          = 0,
 441         .slave_addr     = 0x10,
 442         .frequency      = 10*1000,
 443 };
 444
 445 /* Lots of hardcoded stuff, but it sets up the hardware in a useful
 446  * state so that we can boot Linux directly from flash. */
 447 static void __init n30_hwinit(void)
 448 {
 449         /* GPA0-11 special functions -- unknown what they do
 450          * GPA12 N30 special function -- unknown what it does
 451          *       N35/PiN output -- unknown what it does
 452          *
 453          * A12 is nGCS1 on the N30 and an output on the N35/PiN.  I
 454          * don't think it does anything useful on the N30, so I ought
 455          * to make it an output there too since it always driven to 0
 456          * as far as I can tell. */
 457         if (machine_is_n30())
 458                 __raw_writel(0x007fffff, S3C2410_GPACON);
 459         if (machine_is_n35())
 460                 __raw_writel(0x007fefff, S3C2410_GPACON);
 461         __raw_writel(0x00000000, S3C2410_GPADAT);
 462
 463         /* GPB0 TOUT0 backlight level
 464          * GPB1 output 1=backlight on
 465          * GPB2 output IrDA enable 0=transceiver enabled, 1=disabled
 466          * GPB3 output USB D+ pull up 0=disabled, 1=enabled
 467          * GPB4 N30 output -- unknown function
 468          *      N30/PiN GPS control 0=GPS enabled, 1=GPS disabled
 469          * GPB5 output -- unknown function
 470          * GPB6 input -- unknown function
 471          * GPB7 output -- unknown function
 472          * GPB8 output -- probably LCD driver enable
 473          * GPB9 output -- probably LCD VSYNC driver enable
 474          * GPB10 output -- probably LCD HSYNC driver enable
 475          */
 476         __raw_writel(0x00154556, S3C2410_GPBCON);
 477         __raw_writel(0x00000750, S3C2410_GPBDAT);
 478         __raw_writel(0x00000073, S3C2410_GPBUP);
 479
 480         /* GPC0 input RS232 DCD/DSR/RI
 481          * GPC1 LCD
 482          * GPC2 output RS232 DTR?
 483          * GPC3 input RS232 DCD/DSR/RI
 484          * GPC4 LCD
 485          * GPC5 output 0=NAND write enabled, 1=NAND write protect
 486          * GPC6 input -- unknown function
 487          * GPC7 input charger status 0=charger connected
 488          *      this input can be triggered by power on the USB device
 489          *      port too, but will go back to disconnected soon after.
 490          * GPC8 N30/N35 output -- unknown function, always driven to 1
 491          *      PiN input -- unknown function, always read as 1
 492          *      Make it an input with a pull up for all models.
 493          * GPC9-15 LCD
 494          */
 495         __raw_writel(0xaaa80618, S3C2410_GPCCON);
 496         __raw_writel(0x0000014c, S3C2410_GPCDAT);
 497         __raw_writel(0x0000fef2, S3C2410_GPCUP);
 498
 499         /* GPD0 input -- unknown function
 500          * GPD1-D7 LCD
 501          * GPD8 N30 output -- unknown function
 502          *      N35/PiN output 1=GPS LED on
 503          * GPD9 output 0=power led blinks red, 1=normal power led function
 504          * GPD10 output -- unknown function
 505          * GPD11-15 LCD drivers
 506          */
 507         __raw_writel(0xaa95aaa4, S3C2410_GPDCON);
 508         __raw_writel(0x00000601, S3C2410_GPDDAT);
 509         __raw_writel(0x0000fbfe, S3C2410_GPDUP);
 510
 511         /* GPE0-4 I2S audio bus
 512          * GPE5-10 SD/MMC bus
 513          * E11-13 outputs -- unknown function, probably power management
 514          * E14-15 I2C bus connected to the battery controller
 515          */
 516         __raw_writel(0xa56aaaaa, S3C2410_GPECON);
 517         __raw_writel(0x0000efc5, S3C2410_GPEDAT);
 518         __raw_writel(0x0000f81f, S3C2410_GPEUP);
 519
 520         /* GPF0  input 0=power button pressed
 521          * GPF1  input SD/MMC switch 0=card present
 522          * GPF2  N30 1=reset button pressed (inverted compared to the rest)
 523          *       N35/PiN 0=reset button pressed
 524          * GPF3  N30/PiN input -- unknown function
 525          *       N35 input GPS antenna position, 0=antenna closed, 1=open
 526          * GPF4  input 0=button 4 pressed
 527          * GPF5  input 0=button 3 pressed
 528          * GPF6  input 0=button 2 pressed
 529          * GPF7  input 0=button 1 pressed
 530          */
 531         __raw_writel(0x0000aaaa, S3C2410_GPFCON);
 532         __raw_writel(0x00000000, S3C2410_GPFDAT);
 533         __raw_writel(0x000000ff, S3C2410_GPFUP);
 534
 535         /* GPG0  input RS232 DCD/DSR/RI
 536          * GPG1  input 1=USB gadget port has power from a host
 537          * GPG2  N30 input -- unknown function
 538          *       N35/PiN input 0=headphones plugged in, 1=not plugged in
 539          * GPG3  N30 output -- unknown function
 540          *       N35/PiN input with unknown function
 541          * GPG4  N30 output 0=MMC enabled, 1=MMC disabled
 542          * GPG5  N30 output 0=BlueTooth chip disabled, 1=enabled
 543          *       N35/PiN input joystick right
 544          * GPG6  N30 output 0=blue led on, 1=off
 545          *       N35/PiN input joystick left
 546          * GPG7  input 0=thumbwheel pressed
 547          * GPG8  input 0=thumbwheel down
 548          * GPG9  input 0=thumbwheel up
 549          * GPG10 input SD/MMC write protect switch
 550          * GPG11 N30 input -- unknown function
 551          *       N35 output 0=GPS antenna powered, 1=not powered
 552          *       PiN output -- unknown function
 553          * GPG12-15 touch screen functions
 554          *
 555          * The pullups differ between the models, so enable all
 556          * pullups that are enabled on any of the models.
 557          */
 558         if (machine_is_n30())
 559                 __raw_writel(0xff0a956a, S3C2410_GPGCON);
 560         if (machine_is_n35())
 561                 __raw_writel(0xff4aa92a, S3C2410_GPGCON);
 562         __raw_writel(0x0000e800, S3C2410_GPGDAT);
 563         __raw_writel(0x0000f86f, S3C2410_GPGUP);
 564
 565         /* GPH0/1/2/3 RS232 serial port
 566          * GPH4/5 IrDA serial port
 567          * GPH6/7  N30 BlueTooth serial port
 568          *         N35/PiN GPS receiver
 569          * GPH8 input -- unknown function
 570          * GPH9 CLKOUT0 HCLK -- unknown use
 571          * GPH10 CLKOUT1 FCLK -- unknown use
 572          *
 573          * The pull ups for H6/H7 are enabled on N30 but not on the
 574          * N35/PiN.  I suppose is useful for a budget model of the N30
 575          * with no bluetooth.  It doesn't hurt to have the pull ups
 576          * enabled on the N35, so leave them enabled for all models.
 577          */
 578         __raw_writel(0x0028aaaa, S3C2410_GPHCON);
 579         __raw_writel(0x000005ef, S3C2410_GPHDAT);
 580         __raw_writel(0x0000063f, S3C2410_GPHUP);
 581 }
 582
 583 static void __init n30_map_io(void)
 584 {
 585         s3c24xx_init_io(n30_iodesc, ARRAY_SIZE(n30_iodesc));
 586         n30_hwinit();
 587         s3c24xx_init_uarts(n30_uartcfgs, ARRAY_SIZE(n30_uartcfgs));
 588         s3c24xx_set_timer_source(S3C24XX_PWM3, S3C24XX_PWM4);
 589 }
 590
 591 static void __init n30_init_time(void)
 592 {
 593         s3c2410_init_clocks(12000000);
 594         s3c24xx_timer_init();
 595 }
 596
 597 /* GPB3 is the line that controls the pull-up for the USB D+ line */
 598
 599 static void __init n30_init(void)
 600 {
 601         WARN_ON(gpio_request(S3C2410_GPG(4), "mmc power"));
 602
 603         s3c24xx_fb_set_platdata(&n30_fb_info);
 604         gpiod_add_lookup_table(&n30_udc_gpio_table);
 605         s3c24xx_udc_set_platdata(&n30_udc_cfg);
 606         gpiod_add_lookup_table(&n30_mci_gpio_table);
 607         s3c24xx_mci_set_platdata(&n30_mci_cfg);
 608         s3c_i2c0_set_platdata(&n30_i2ccfg);
 609
 610         /* Turn off suspend on both USB ports, and switch the
 611          * selectable USB port to USB device mode. */
 612
 613         s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
 614                               S3C2410_MISCCR_USBSUSPND0 |
 615                               S3C2410_MISCCR_USBSUSPND1, 0x0);
 616
 617         /* Configure the I2S pins (GPE0...GPE4) in correct mode */
 618         s3c_gpio_cfgall_range(S3C2410_GPE(0), 5, S3C_GPIO_SFN(2),
 619                               S3C_GPIO_PULL_NONE);
 620
 621         if (machine_is_n30()) {
 622                 /* Turn off suspend on both USB ports, and switch the
 623                  * selectable USB port to USB device mode. */
 624                 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
 625                                       S3C2410_MISCCR_USBSUSPND0 |
 626                                       S3C2410_MISCCR_USBSUSPND1, 0x0);
 627
 628                 /* Disable pull-up and add GPIO tables */
 629                 s3c_gpio_setpull(S3C2410_GPG(6), S3C_GPIO_PULL_NONE);
 630                 s3c_gpio_setpull(S3C2410_GPD(9), S3C_GPIO_PULL_NONE);
 631                 gpiod_add_lookup_table(&n30_blue_led_gpio_table);
 632                 gpiod_add_lookup_table(&n30_warning_led_gpio_table);
 633
 634                 platform_add_devices(n30_devices, ARRAY_SIZE(n30_devices));
 635         }
 636
 637         if (machine_is_n35()) {
 638                 /* Turn off suspend and switch the selectable USB port
 639                  * to USB device mode.  Turn on suspend for the host
 640                  * port since it is not connected on the N35.
 641                  *
 642                  * Actually, the host port is available at some pads
 643                  * on the back of the device, so it would actually be
 644                  * possible to add a USB device inside the N35 if you
 645                  * are willing to do some hardware modifications. */
 646                 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
 647                                       S3C2410_MISCCR_USBSUSPND0 |
 648                                       S3C2410_MISCCR_USBSUSPND1,
 649                                       S3C2410_MISCCR_USBSUSPND0);
 650
 651                 /* Disable pull-up and add GPIO tables */
 652                 s3c_gpio_setpull(S3C2410_GPD(8), S3C_GPIO_PULL_NONE);
 653                 s3c_gpio_setpull(S3C2410_GPD(9), S3C_GPIO_PULL_NONE);
 654                 gpiod_add_lookup_table(&n35_blue_led_gpio_table);
 655                 gpiod_add_lookup_table(&n35_warning_led_gpio_table);
 656
 657                 platform_add_devices(n35_devices, ARRAY_SIZE(n35_devices));
 658         }
 659 }
 660
 661 MACHINE_START(N30, "Acer-N30")
 662         /* Maintainer: Christer Weinigel <christer@weinigel.se>,
 663                                 Ben Dooks <ben-linux@fluff.org>
 664         */
 665         .atag_offset    = 0x100,
 666         .nr_irqs        = NR_IRQS_S3C2410,
 667         .init_time      = n30_init_time,
 668         .init_machine   = n30_init,
 669         .init_irq       = s3c2410_init_irq,
 670         .map_io         = n30_map_io,
 671 MACHINE_END
 672
 673 MACHINE_START(N35, "Acer-N35")
 674         /* Maintainer: Christer Weinigel <christer@weinigel.se>
 675         */
 676         .atag_offset    = 0x100,
 677         .nr_irqs        = NR_IRQS_S3C2410,
 678         .init_time      = n30_init_time,
 679         .init_machine   = n30_init,
 680         .init_irq       = s3c2410_init_irq,
 681         .map_io         = n30_map_io,
 682 MACHINE_END