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         .vbus_pin               = S3C2410_GPG(1),
  88         .vbus_pin_inverted      = 0,
  89         .pullup_pin             = S3C2410_GPB(3),
  90 };
  91
  92 static struct gpio_keys_button n30_buttons[] = {
  93         {
  94                 .gpio           = S3C2410_GPF(0),
  95                 .code           = KEY_POWER,
  96                 .desc           = "Power",
  97                 .active_low     = 0,
  98         },
  99         {
 100                 .gpio           = S3C2410_GPG(9),
 101                 .code           = KEY_UP,
 102                 .desc           = "Thumbwheel Up",
 103                 .active_low     = 0,
 104         },
 105         {
 106                 .gpio           = S3C2410_GPG(8),
 107                 .code           = KEY_DOWN,
 108                 .desc           = "Thumbwheel Down",
 109                 .active_low     = 0,
 110         },
 111         {
 112                 .gpio           = S3C2410_GPG(7),
 113                 .code           = KEY_ENTER,
 114                 .desc           = "Thumbwheel Press",
 115                 .active_low     = 0,
 116         },
 117         {
 118                 .gpio           = S3C2410_GPF(7),
 119                 .code           = KEY_HOMEPAGE,
 120                 .desc           = "Home",
 121                 .active_low     = 0,
 122         },
 123         {
 124                 .gpio           = S3C2410_GPF(6),
 125                 .code           = KEY_CALENDAR,
 126                 .desc           = "Calendar",
 127                 .active_low     = 0,
 128         },
 129         {
 130                 .gpio           = S3C2410_GPF(5),
 131                 .code           = KEY_ADDRESSBOOK,
 132                 .desc           = "Contacts",
 133                 .active_low     = 0,
 134         },
 135         {
 136                 .gpio           = S3C2410_GPF(4),
 137                 .code           = KEY_MAIL,
 138                 .desc           = "Mail",
 139                 .active_low     = 0,
 140         },
 141 };
 142
 143 static struct gpio_keys_platform_data n30_button_data = {
 144         .buttons        = n30_buttons,
 145         .nbuttons       = ARRAY_SIZE(n30_buttons),
 146 };
 147
 148 static struct platform_device n30_button_device = {
 149         .name           = "gpio-keys",
 150         .id             = -1,
 151         .dev            = {
 152                 .platform_data  = &n30_button_data,
 153         }
 154 };
 155
 156 static struct gpio_keys_button n35_buttons[] = {
 157         {
 158                 .gpio           = S3C2410_GPF(0),
 159                 .code           = KEY_POWER,
 160                 .type           = EV_PWR,
 161                 .desc           = "Power",
 162                 .active_low     = 0,
 163                 .wakeup         = 1,
 164         },
 165         {
 166                 .gpio           = S3C2410_GPG(9),
 167                 .code           = KEY_UP,
 168                 .desc           = "Joystick Up",
 169                 .active_low     = 0,
 170         },
 171         {
 172                 .gpio           = S3C2410_GPG(8),
 173                 .code           = KEY_DOWN,
 174                 .desc           = "Joystick Down",
 175                 .active_low     = 0,
 176         },
 177         {
 178                 .gpio           = S3C2410_GPG(6),
 179                 .code           = KEY_DOWN,
 180                 .desc           = "Joystick Left",
 181                 .active_low     = 0,
 182         },
 183         {
 184                 .gpio           = S3C2410_GPG(5),
 185                 .code           = KEY_DOWN,
 186                 .desc           = "Joystick Right",
 187                 .active_low     = 0,
 188         },
 189         {
 190                 .gpio           = S3C2410_GPG(7),
 191                 .code           = KEY_ENTER,
 192                 .desc           = "Joystick Press",
 193                 .active_low     = 0,
 194         },
 195         {
 196                 .gpio           = S3C2410_GPF(7),
 197                 .code           = KEY_HOMEPAGE,
 198                 .desc           = "Home",
 199                 .active_low     = 0,
 200         },
 201         {
 202                 .gpio           = S3C2410_GPF(6),
 203                 .code           = KEY_CALENDAR,
 204                 .desc           = "Calendar",
 205                 .active_low     = 0,
 206         },
 207         {
 208                 .gpio           = S3C2410_GPF(5),
 209                 .code           = KEY_ADDRESSBOOK,
 210                 .desc           = "Contacts",
 211                 .active_low     = 0,
 212         },
 213         {
 214                 .gpio           = S3C2410_GPF(4),
 215                 .code           = KEY_MAIL,
 216                 .desc           = "Mail",
 217                 .active_low     = 0,
 218         },
 219         {
 220                 .gpio           = S3C2410_GPF(3),
 221                 .code           = SW_RADIO,
 222                 .desc           = "GPS Antenna",
 223                 .active_low     = 0,
 224         },
 225         {
 226                 .gpio           = S3C2410_GPG(2),
 227                 .code           = SW_HEADPHONE_INSERT,
 228                 .desc           = "Headphone",
 229                 .active_low     = 0,
 230         },
 231 };
 232
 233 static struct gpio_keys_platform_data n35_button_data = {
 234         .buttons        = n35_buttons,
 235         .nbuttons       = ARRAY_SIZE(n35_buttons),
 236 };
 237
 238 static struct platform_device n35_button_device = {
 239         .name           = "gpio-keys",
 240         .id             = -1,
 241         .num_resources  = 0,
 242         .dev            = {
 243                 .platform_data  = &n35_button_data,
 244         }
 245 };
 246
 247 /* This is the bluetooth LED on the device. */
 248
 249 static struct gpiod_lookup_table n30_blue_led_gpio_table = {
 250         .dev_id = "s3c24xx_led.1",
 251         .table = {
 252                 GPIO_LOOKUP("GPG", 6, NULL, GPIO_ACTIVE_HIGH),
 253                 { },
 254         },
 255 };
 256
 257 static struct s3c24xx_led_platdata n30_blue_led_pdata = {
 258         .name           = "blue_led",
 259         .def_trigger    = "",
 260 };
 261
 262 /* This is the blue LED on the device. Originally used to indicate GPS activity
 263  * by flashing. */
 264
 265 static struct gpiod_lookup_table n35_blue_led_gpio_table = {
 266         .dev_id = "s3c24xx_led.1",
 267         .table = {
 268                 GPIO_LOOKUP("GPD", 8, NULL, GPIO_ACTIVE_HIGH),
 269                 { },
 270         },
 271 };
 272
 273 static struct s3c24xx_led_platdata n35_blue_led_pdata = {
 274         .name           = "blue_led",
 275         .def_trigger    = "",
 276 };
 277
 278 /* This LED is driven by the battery microcontroller, and is blinking
 279  * red, blinking green or solid green when the battery is low,
 280  * charging or full respectively.  By driving GPD9 low, it's possible
 281  * to force the LED to blink red, so call that warning LED.  */
 282
 283 static struct gpiod_lookup_table n30_warning_led_gpio_table = {
 284         .dev_id = "s3c24xx_led.2",
 285         .table = {
 286                 GPIO_LOOKUP("GPD", 9, NULL, GPIO_ACTIVE_LOW),
 287                 { },
 288         },
 289 };
 290
 291 static struct s3c24xx_led_platdata n30_warning_led_pdata = {
 292         .name           = "warning_led",
 293         .def_trigger    = "",
 294 };
 295
 296 static struct gpiod_lookup_table n35_warning_led_gpio_table = {
 297         .dev_id = "s3c24xx_led.2",
 298         .table = {
 299                 GPIO_LOOKUP("GPD", 9, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN),
 300                 { },
 301         },
 302 };
 303
 304 static struct s3c24xx_led_platdata n35_warning_led_pdata = {
 305         .name           = "warning_led",
 306         .def_trigger    = "",
 307 };
 308
 309 static struct platform_device n30_blue_led = {
 310         .name           = "s3c24xx_led",
 311         .id             = 1,
 312         .dev            = {
 313                 .platform_data  = &n30_blue_led_pdata,
 314         },
 315 };
 316
 317 static struct platform_device n35_blue_led = {
 318         .name           = "s3c24xx_led",
 319         .id             = 1,
 320         .dev            = {
 321                 .platform_data  = &n35_blue_led_pdata,
 322         },
 323 };
 324
 325 static struct platform_device n30_warning_led = {
 326         .name           = "s3c24xx_led",
 327         .id             = 2,
 328         .dev            = {
 329                 .platform_data  = &n30_warning_led_pdata,
 330         },
 331 };
 332
 333 static struct platform_device n35_warning_led = {
 334         .name           = "s3c24xx_led",
 335         .id             = 2,
 336         .dev            = {
 337                 .platform_data  = &n35_warning_led_pdata,
 338         },
 339 };
 340
 341 static struct s3c2410fb_display n30_display __initdata = {
 342         .type           = S3C2410_LCDCON1_TFT,
 343         .width          = 240,
 344         .height         = 320,
 345         .pixclock       = 170000,
 346
 347         .xres           = 240,
 348         .yres           = 320,
 349         .bpp            = 16,
 350         .left_margin    = 3,
 351         .right_margin   = 40,
 352         .hsync_len      = 40,
 353         .upper_margin   = 2,
 354         .lower_margin   = 3,
 355         .vsync_len      = 2,
 356
 357         .lcdcon5 = S3C2410_LCDCON5_INVVLINE | S3C2410_LCDCON5_INVVFRAME,
 358 };
 359
 360 static struct s3c2410fb_mach_info n30_fb_info __initdata = {
 361         .displays       = &n30_display,
 362         .num_displays   = 1,
 363         .default_display = 0,
 364         .lpcsel         = 0x06,
 365 };
 366
 367 static void n30_sdi_set_power(unsigned char power_mode, unsigned short vdd)
 368 {
 369         s3c24xx_mci_def_set_power(power_mode, vdd);
 370
 371         switch (power_mode) {
 372         case MMC_POWER_ON:
 373         case MMC_POWER_UP:
 374                 gpio_set_value(S3C2410_GPG(4), 1);
 375                 break;
 376         case MMC_POWER_OFF:
 377         default:
 378                 gpio_set_value(S3C2410_GPG(4), 0);
 379                 break;
 380         }
 381 }
 382
 383 static struct s3c24xx_mci_pdata n30_mci_cfg __initdata = {
 384         .ocr_avail      = MMC_VDD_32_33,
 385         .set_power      = n30_sdi_set_power,
 386 };
 387
 388 static struct gpiod_lookup_table n30_mci_gpio_table = {
 389         .dev_id = "s3c2410-sdi",
 390         .table = {
 391                 /* Card detect S3C2410_GPF(1) */
 392                 GPIO_LOOKUP("GPIOF", 1, "cd", GPIO_ACTIVE_LOW),
 393                 /* Write protect S3C2410_GPG(10) */
 394                 GPIO_LOOKUP("GPIOG", 10, "wp", GPIO_ACTIVE_LOW),
 395                 { },
 396                 /* bus pins */
 397                 GPIO_LOOKUP_IDX("GPIOE",  5, "bus", 0, GPIO_ACTIVE_HIGH),
 398                 GPIO_LOOKUP_IDX("GPIOE",  6, "bus", 1, GPIO_ACTIVE_HIGH),
 399                 GPIO_LOOKUP_IDX("GPIOE",  7, "bus", 2, GPIO_ACTIVE_HIGH),
 400                 GPIO_LOOKUP_IDX("GPIOE",  8, "bus", 3, GPIO_ACTIVE_HIGH),
 401                 GPIO_LOOKUP_IDX("GPIOE",  9, "bus", 4, GPIO_ACTIVE_HIGH),
 402                 GPIO_LOOKUP_IDX("GPIOE", 10, "bus", 5, GPIO_ACTIVE_HIGH),
 403         },
 404 };
 405
 406 static struct platform_device *n30_devices[] __initdata = {
 407         &s3c_device_lcd,
 408         &s3c_device_wdt,
 409         &s3c_device_i2c0,
 410         &s3c_device_iis,
 411         &s3c_device_ohci,
 412         &s3c_device_rtc,
 413         &s3c_device_usbgadget,
 414         &s3c_device_sdi,
 415         &n30_button_device,
 416         &n30_blue_led,
 417         &n30_warning_led,
 418 };
 419
 420 static struct platform_device *n35_devices[] __initdata = {
 421         &s3c_device_lcd,
 422         &s3c_device_wdt,
 423         &s3c_device_i2c0,
 424         &s3c_device_iis,
 425         &s3c_device_rtc,
 426         &s3c_device_usbgadget,
 427         &s3c_device_sdi,
 428         &n35_button_device,
 429         &n35_blue_led,
 430         &n35_warning_led,
 431 };
 432
 433 static struct s3c2410_platform_i2c __initdata n30_i2ccfg = {
 434         .flags          = 0,
 435         .slave_addr     = 0x10,
 436         .frequency      = 10*1000,
 437 };
 438
 439 /* Lots of hardcoded stuff, but it sets up the hardware in a useful
 440  * state so that we can boot Linux directly from flash. */
 441 static void __init n30_hwinit(void)
 442 {
 443         /* GPA0-11 special functions -- unknown what they do
 444          * GPA12 N30 special function -- unknown what it does
 445          *       N35/PiN output -- unknown what it does
 446          *
 447          * A12 is nGCS1 on the N30 and an output on the N35/PiN.  I
 448          * don't think it does anything useful on the N30, so I ought
 449          * to make it an output there too since it always driven to 0
 450          * as far as I can tell. */
 451         if (machine_is_n30())
 452                 __raw_writel(0x007fffff, S3C2410_GPACON);
 453         if (machine_is_n35())
 454                 __raw_writel(0x007fefff, S3C2410_GPACON);
 455         __raw_writel(0x00000000, S3C2410_GPADAT);
 456
 457         /* GPB0 TOUT0 backlight level
 458          * GPB1 output 1=backlight on
 459          * GPB2 output IrDA enable 0=transceiver enabled, 1=disabled
 460          * GPB3 output USB D+ pull up 0=disabled, 1=enabled
 461          * GPB4 N30 output -- unknown function
 462          *      N30/PiN GPS control 0=GPS enabled, 1=GPS disabled
 463          * GPB5 output -- unknown function
 464          * GPB6 input -- unknown function
 465          * GPB7 output -- unknown function
 466          * GPB8 output -- probably LCD driver enable
 467          * GPB9 output -- probably LCD VSYNC driver enable
 468          * GPB10 output -- probably LCD HSYNC driver enable
 469          */
 470         __raw_writel(0x00154556, S3C2410_GPBCON);
 471         __raw_writel(0x00000750, S3C2410_GPBDAT);
 472         __raw_writel(0x00000073, S3C2410_GPBUP);
 473
 474         /* GPC0 input RS232 DCD/DSR/RI
 475          * GPC1 LCD
 476          * GPC2 output RS232 DTR?
 477          * GPC3 input RS232 DCD/DSR/RI
 478          * GPC4 LCD
 479          * GPC5 output 0=NAND write enabled, 1=NAND write protect
 480          * GPC6 input -- unknown function
 481          * GPC7 input charger status 0=charger connected
 482          *      this input can be triggered by power on the USB device
 483          *      port too, but will go back to disconnected soon after.
 484          * GPC8 N30/N35 output -- unknown function, always driven to 1
 485          *      PiN input -- unknown function, always read as 1
 486          *      Make it an input with a pull up for all models.
 487          * GPC9-15 LCD
 488          */
 489         __raw_writel(0xaaa80618, S3C2410_GPCCON);
 490         __raw_writel(0x0000014c, S3C2410_GPCDAT);
 491         __raw_writel(0x0000fef2, S3C2410_GPCUP);
 492
 493         /* GPD0 input -- unknown function
 494          * GPD1-D7 LCD
 495          * GPD8 N30 output -- unknown function
 496          *      N35/PiN output 1=GPS LED on
 497          * GPD9 output 0=power led blinks red, 1=normal power led function
 498          * GPD10 output -- unknown function
 499          * GPD11-15 LCD drivers
 500          */
 501         __raw_writel(0xaa95aaa4, S3C2410_GPDCON);
 502         __raw_writel(0x00000601, S3C2410_GPDDAT);
 503         __raw_writel(0x0000fbfe, S3C2410_GPDUP);
 504
 505         /* GPE0-4 I2S audio bus
 506          * GPE5-10 SD/MMC bus
 507          * E11-13 outputs -- unknown function, probably power management
 508          * E14-15 I2C bus connected to the battery controller
 509          */
 510         __raw_writel(0xa56aaaaa, S3C2410_GPECON);
 511         __raw_writel(0x0000efc5, S3C2410_GPEDAT);
 512         __raw_writel(0x0000f81f, S3C2410_GPEUP);
 513
 514         /* GPF0  input 0=power button pressed
 515          * GPF1  input SD/MMC switch 0=card present
 516          * GPF2  N30 1=reset button pressed (inverted compared to the rest)
 517          *       N35/PiN 0=reset button pressed
 518          * GPF3  N30/PiN input -- unknown function
 519          *       N35 input GPS antenna position, 0=antenna closed, 1=open
 520          * GPF4  input 0=button 4 pressed
 521          * GPF5  input 0=button 3 pressed
 522          * GPF6  input 0=button 2 pressed
 523          * GPF7  input 0=button 1 pressed
 524          */
 525         __raw_writel(0x0000aaaa, S3C2410_GPFCON);
 526         __raw_writel(0x00000000, S3C2410_GPFDAT);
 527         __raw_writel(0x000000ff, S3C2410_GPFUP);
 528
 529         /* GPG0  input RS232 DCD/DSR/RI
 530          * GPG1  input 1=USB gadget port has power from a host
 531          * GPG2  N30 input -- unknown function
 532          *       N35/PiN input 0=headphones plugged in, 1=not plugged in
 533          * GPG3  N30 output -- unknown function
 534          *       N35/PiN input with unknown function
 535          * GPG4  N30 output 0=MMC enabled, 1=MMC disabled
 536          * GPG5  N30 output 0=BlueTooth chip disabled, 1=enabled
 537          *       N35/PiN input joystick right
 538          * GPG6  N30 output 0=blue led on, 1=off
 539          *       N35/PiN input joystick left
 540          * GPG7  input 0=thumbwheel pressed
 541          * GPG8  input 0=thumbwheel down
 542          * GPG9  input 0=thumbwheel up
 543          * GPG10 input SD/MMC write protect switch
 544          * GPG11 N30 input -- unknown function
 545          *       N35 output 0=GPS antenna powered, 1=not powered
 546          *       PiN output -- unknown function
 547          * GPG12-15 touch screen functions
 548          *
 549          * The pullups differ between the models, so enable all
 550          * pullups that are enabled on any of the models.
 551          */
 552         if (machine_is_n30())
 553                 __raw_writel(0xff0a956a, S3C2410_GPGCON);
 554         if (machine_is_n35())
 555                 __raw_writel(0xff4aa92a, S3C2410_GPGCON);
 556         __raw_writel(0x0000e800, S3C2410_GPGDAT);
 557         __raw_writel(0x0000f86f, S3C2410_GPGUP);
 558
 559         /* GPH0/1/2/3 RS232 serial port
 560          * GPH4/5 IrDA serial port
 561          * GPH6/7  N30 BlueTooth serial port
 562          *         N35/PiN GPS receiver
 563          * GPH8 input -- unknown function
 564          * GPH9 CLKOUT0 HCLK -- unknown use
 565          * GPH10 CLKOUT1 FCLK -- unknown use
 566          *
 567          * The pull ups for H6/H7 are enabled on N30 but not on the
 568          * N35/PiN.  I suppose is useful for a budget model of the N30
 569          * with no bluetooth.  It doesn't hurt to have the pull ups
 570          * enabled on the N35, so leave them enabled for all models.
 571          */
 572         __raw_writel(0x0028aaaa, S3C2410_GPHCON);
 573         __raw_writel(0x000005ef, S3C2410_GPHDAT);
 574         __raw_writel(0x0000063f, S3C2410_GPHUP);
 575 }
 576
 577 static void __init n30_map_io(void)
 578 {
 579         s3c24xx_init_io(n30_iodesc, ARRAY_SIZE(n30_iodesc));
 580         n30_hwinit();
 581         s3c24xx_init_uarts(n30_uartcfgs, ARRAY_SIZE(n30_uartcfgs));
 582         s3c24xx_set_timer_source(S3C24XX_PWM3, S3C24XX_PWM4);
 583 }
 584
 585 static void __init n30_init_time(void)
 586 {
 587         s3c2410_init_clocks(12000000);
 588         s3c24xx_timer_init();
 589 }
 590
 591 /* GPB3 is the line that controls the pull-up for the USB D+ line */
 592
 593 static void __init n30_init(void)
 594 {
 595         WARN_ON(gpio_request(S3C2410_GPG(4), "mmc power"));
 596
 597         s3c24xx_fb_set_platdata(&n30_fb_info);
 598         s3c24xx_udc_set_platdata(&n30_udc_cfg);
 599         gpiod_add_lookup_table(&n30_mci_gpio_table);
 600         s3c24xx_mci_set_platdata(&n30_mci_cfg);
 601         s3c_i2c0_set_platdata(&n30_i2ccfg);
 602
 603         /* Turn off suspend on both USB ports, and switch the
 604          * selectable USB port to USB device mode. */
 605
 606         s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
 607                               S3C2410_MISCCR_USBSUSPND0 |
 608                               S3C2410_MISCCR_USBSUSPND1, 0x0);
 609
 610         /* Configure the I2S pins (GPE0...GPE4) in correct mode */
 611         s3c_gpio_cfgall_range(S3C2410_GPE(0), 5, S3C_GPIO_SFN(2),
 612                               S3C_GPIO_PULL_NONE);
 613
 614         if (machine_is_n30()) {
 615                 /* Turn off suspend on both USB ports, and switch the
 616                  * selectable USB port to USB device mode. */
 617                 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
 618                                       S3C2410_MISCCR_USBSUSPND0 |
 619                                       S3C2410_MISCCR_USBSUSPND1, 0x0);
 620
 621                 /* Disable pull-up and add GPIO tables */
 622                 s3c_gpio_setpull(S3C2410_GPG(6), S3C_GPIO_PULL_NONE);
 623                 s3c_gpio_setpull(S3C2410_GPD(9), S3C_GPIO_PULL_NONE);
 624                 gpiod_add_lookup_table(&n30_blue_led_gpio_table);
 625                 gpiod_add_lookup_table(&n30_warning_led_gpio_table);
 626
 627                 platform_add_devices(n30_devices, ARRAY_SIZE(n30_devices));
 628         }
 629
 630         if (machine_is_n35()) {
 631                 /* Turn off suspend and switch the selectable USB port
 632                  * to USB device mode.  Turn on suspend for the host
 633                  * port since it is not connected on the N35.
 634                  *
 635                  * Actually, the host port is available at some pads
 636                  * on the back of the device, so it would actually be
 637                  * possible to add a USB device inside the N35 if you
 638                  * are willing to do some hardware modifications. */
 639                 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
 640                                       S3C2410_MISCCR_USBSUSPND0 |
 641                                       S3C2410_MISCCR_USBSUSPND1,
 642                                       S3C2410_MISCCR_USBSUSPND0);
 643
 644                 /* Disable pull-up and add GPIO tables */
 645                 s3c_gpio_setpull(S3C2410_GPD(8), S3C_GPIO_PULL_NONE);
 646                 s3c_gpio_setpull(S3C2410_GPD(9), S3C_GPIO_PULL_NONE);
 647                 gpiod_add_lookup_table(&n35_blue_led_gpio_table);
 648                 gpiod_add_lookup_table(&n35_warning_led_gpio_table);
 649
 650                 platform_add_devices(n35_devices, ARRAY_SIZE(n35_devices));
 651         }
 652 }
 653
 654 MACHINE_START(N30, "Acer-N30")
 655         /* Maintainer: Christer Weinigel <christer@weinigel.se>,
 656                                 Ben Dooks <ben-linux@fluff.org>
 657         */
 658         .atag_offset    = 0x100,
 659         .init_time      = n30_init_time,
 660         .init_machine   = n30_init,
 661         .init_irq       = s3c2410_init_irq,
 662         .map_io         = n30_map_io,
 663 MACHINE_END
 664
 665 MACHINE_START(N35, "Acer-N35")
 666         /* Maintainer: Christer Weinigel <christer@weinigel.se>
 667         */
 668         .atag_offset    = 0x100,
 669         .init_time      = n30_init_time,
 670         .init_machine   = n30_init,
 671         .init_irq       = s3c2410_init_irq,
 672         .map_io         = n30_map_io,
 673 MACHINE_END