arch/arm/mach-s3c6410/mach-smdk6410.c

   1 /* linux/arch/arm/mach-s3c6410/mach-smdk6410.c
   2  *
   3  * Copyright 2008 Openmoko, Inc.
   4  * Copyright 2008 Simtec Electronics
   5  *      Ben Dooks <ben@simtec.co.uk>
   6  *      http://armlinux.simtec.co.uk/
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  *
  12 */
  13
  14 #include <linux/kernel.h>
  15 #include <linux/types.h>
  16 #include <linux/interrupt.h>
  17 #include <linux/list.h>
  18 #include <linux/timer.h>
  19 #include <linux/init.h>
  20 #include <linux/serial_core.h>
  21 #include <linux/platform_device.h>
  22 #include <linux/io.h>
  23 #include <linux/i2c.h>
  24 #include <linux/fb.h>
  25 #include <linux/gpio.h>
  26 #include <linux/delay.h>
  27 #include <linux/smsc911x.h>
  28 #include <linux/regulator/fixed.h>
  29
  30 #ifdef CONFIG_SMDK6410_WM1190_EV1
  31 #include <linux/mfd/wm8350/core.h>
  32 #include <linux/mfd/wm8350/pmic.h>
  33 #endif
  34
  35 #include <video/platform_lcd.h>
  36
  37 #include <asm/mach/arch.h>
  38 #include <asm/mach/map.h>
  39 #include <asm/mach/irq.h>
  40
  41 #include <mach/hardware.h>
  42 #include <mach/regs-fb.h>
  43 #include <mach/map.h>
  44
  45 #include <asm/irq.h>
  46 #include <asm/mach-types.h>
  47
  48 #include <plat/regs-serial.h>
  49 #include <plat/regs-modem.h>
  50 #include <plat/regs-gpio.h>
  51 #include <plat/regs-sys.h>
  52 #include <plat/regs-srom.h>
  53 #include <plat/iic.h>
  54 #include <plat/fb.h>
  55 #include <plat/gpio-cfg.h>
  56
  57 #include <plat/s3c6410.h>
  58 #include <plat/clock.h>
  59 #include <plat/devs.h>
  60 #include <plat/cpu.h>
  61
  62 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
  63 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
  64 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
  65
  66 static struct s3c2410_uartcfg smdk6410_uartcfgs[] __initdata = {
  67         [0] = {
  68                 .hwport      = 0,
  69                 .flags       = 0,
  70                 .ucon        = UCON,
  71                 .ulcon       = ULCON,
  72                 .ufcon       = UFCON,
  73         },
  74         [1] = {
  75                 .hwport      = 1,
  76                 .flags       = 0,
  77                 .ucon        = UCON,
  78                 .ulcon       = ULCON,
  79                 .ufcon       = UFCON,
  80         },
  81         [2] = {
  82                 .hwport      = 2,
  83                 .flags       = 0,
  84                 .ucon        = UCON,
  85                 .ulcon       = ULCON,
  86                 .ufcon       = UFCON,
  87         },
  88         [3] = {
  89                 .hwport      = 3,
  90                 .flags       = 0,
  91                 .ucon        = UCON,
  92                 .ulcon       = ULCON,
  93                 .ufcon       = UFCON,
  94         },
  95 };
  96
  97 /* framebuffer and LCD setup. */
  98
  99 /* GPF15 = LCD backlight control
 100  * GPF13 => Panel power
 101  * GPN5 = LCD nRESET signal
 102  * PWM_TOUT1 => backlight brightness
 103  */
 104
 105 static void smdk6410_lcd_power_set(struct plat_lcd_data *pd,
 106                                    unsigned int power)
 107 {
 108         if (power) {
 109                 gpio_direction_output(S3C64XX_GPF(13), 1);
 110                 gpio_direction_output(S3C64XX_GPF(15), 1);
 111
 112                 /* fire nRESET on power up */
 113                 gpio_direction_output(S3C64XX_GPN(5), 0);
 114                 msleep(10);
 115                 gpio_direction_output(S3C64XX_GPN(5), 1);
 116                 msleep(1);
 117         } else {
 118                 gpio_direction_output(S3C64XX_GPF(15), 0);
 119                 gpio_direction_output(S3C64XX_GPF(13), 0);
 120         }
 121 }
 122
 123 static struct plat_lcd_data smdk6410_lcd_power_data = {
 124         .set_power      = smdk6410_lcd_power_set,
 125 };
 126
 127 static struct platform_device smdk6410_lcd_powerdev = {
 128         .name                   = "platform-lcd",
 129         .dev.parent             = &s3c_device_fb.dev,
 130         .dev.platform_data      = &smdk6410_lcd_power_data,
 131 };
 132
 133 static struct s3c_fb_pd_win smdk6410_fb_win0 = {
 134         /* this is to ensure we use win0 */
 135         .win_mode       = {
 136                 .pixclock       = 41094,
 137                 .left_margin    = 8,
 138                 .right_margin   = 13,
 139                 .upper_margin   = 7,
 140                 .lower_margin   = 5,
 141                 .hsync_len      = 3,
 142                 .vsync_len      = 1,
 143                 .xres           = 800,
 144                 .yres           = 480,
 145         },
 146         .max_bpp        = 32,
 147         .default_bpp    = 16,
 148 };
 149
 150 /* 405566 clocks per frame => 60Hz refresh requires 24333960Hz clock */
 151 static struct s3c_fb_platdata smdk6410_lcd_pdata __initdata = {
 152         .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
 153         .win[0]         = &smdk6410_fb_win0,
 154         .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
 155         .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
 156 };
 157
 158 /*
 159  * Configuring Ethernet on SMDK6410
 160  *
 161  * Both CS8900A and LAN9115 chips share one chip select mediated by CFG6.
 162  * The constant address below corresponds to nCS1
 163  *
 164  *  1) Set CFGB2 p3 ON others off, no other CFGB selects "ethernet"
 165  *  2) CFG6 needs to be switched to "LAN9115" side
 166  */
 167
 168 static struct resource smdk6410_smsc911x_resources[] = {
 169         [0] = {
 170                 .start = S3C64XX_PA_XM0CSN1,
 171                 .end   = S3C64XX_PA_XM0CSN1 + SZ_64K - 1,
 172                 .flags = IORESOURCE_MEM,
 173         },
 174         [1] = {
 175                 .start = S3C_EINT(10),
 176                 .end   = S3C_EINT(10),
 177                 .flags = IORESOURCE_IRQ | IRQ_TYPE_LEVEL_LOW,
 178         },
 179 };
 180
 181 static struct smsc911x_platform_config smdk6410_smsc911x_pdata = {
 182         .irq_polarity  = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
 183         .irq_type      = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
 184         .flags         = SMSC911X_USE_32BIT | SMSC911X_FORCE_INTERNAL_PHY,
 185         .phy_interface = PHY_INTERFACE_MODE_MII,
 186 };
 187
 188
 189 static struct platform_device smdk6410_smsc911x = {
 190         .name          = "smsc911x",
 191         .id            = -1,
 192         .num_resources = ARRAY_SIZE(smdk6410_smsc911x_resources),
 193         .resource      = &smdk6410_smsc911x_resources[0],
 194         .dev = {
 195                 .platform_data = &smdk6410_smsc911x_pdata,
 196         },
 197 };
 198
 199 #ifdef CONFIG_REGULATOR
 200 static struct regulator_consumer_supply smdk6410_b_pwr_5v_consumers[] = {
 201         {
 202                 /* WM8580 */
 203                 .supply = "PVDD",
 204                 .dev_name = "0-001b",
 205         },
 206         {
 207                 /* WM8580 */
 208                 .supply = "AVDD",
 209                 .dev_name = "0-001b",
 210         },
 211 };
 212
 213 static struct regulator_init_data smdk6410_b_pwr_5v_data = {
 214         .constraints = {
 215                 .always_on = 1,
 216         },
 217         .num_consumer_supplies = ARRAY_SIZE(smdk6410_b_pwr_5v_consumers),
 218         .consumer_supplies = smdk6410_b_pwr_5v_consumers,
 219 };
 220
 221 static struct fixed_voltage_config smdk6410_b_pwr_5v_pdata = {
 222         .supply_name = "B_PWR_5V",
 223         .microvolts = 5000000,
 224         .init_data = &smdk6410_b_pwr_5v_data,
 225         .gpio = -EINVAL,
 226 };
 227
 228 static struct platform_device smdk6410_b_pwr_5v = {
 229         .name          = "reg-fixed-voltage",
 230         .id            = -1,
 231         .dev = {
 232                 .platform_data = &smdk6410_b_pwr_5v_pdata,
 233         },
 234 };
 235 #endif
 236
 237 static struct map_desc smdk6410_iodesc[] = {};
 238
 239 static struct platform_device *smdk6410_devices[] __initdata = {
 240 #ifdef CONFIG_SMDK6410_SD_CH0
 241         &s3c_device_hsmmc0,
 242 #endif
 243 #ifdef CONFIG_SMDK6410_SD_CH1
 244         &s3c_device_hsmmc1,
 245 #endif
 246         &s3c_device_i2c0,
 247         &s3c_device_i2c1,
 248         &s3c_device_fb,
 249         &s3c_device_ohci,
 250         &s3c_device_usb_hsotg,
 251
 252 #ifdef CONFIG_REGULATOR
 253         &smdk6410_b_pwr_5v,
 254 #endif
 255         &smdk6410_lcd_powerdev,
 256
 257         &smdk6410_smsc911x,
 258 };
 259
 260 #ifdef CONFIG_SMDK6410_WM1190_EV1
 261 /* S3C64xx internal logic & PLL */
 262 static struct regulator_init_data wm8350_dcdc1_data = {
 263         .constraints = {
 264                 .name = "PVDD_INT/PVDD_PLL",
 265                 .min_uV = 1200000,
 266                 .max_uV = 1200000,
 267                 .always_on = 1,
 268                 .apply_uV = 1,
 269         },
 270 };
 271
 272 /* Memory */
 273 static struct regulator_init_data wm8350_dcdc3_data = {
 274         .constraints = {
 275                 .name = "PVDD_MEM",
 276                 .min_uV = 1800000,
 277                 .max_uV = 1800000,
 278                 .always_on = 1,
 279                 .state_mem = {
 280                          .uV = 1800000,
 281                          .mode = REGULATOR_MODE_NORMAL,
 282                          .enabled = 1,
 283                  },
 284                 .initial_state = PM_SUSPEND_MEM,
 285         },
 286 };
 287
 288 /* USB, EXT, PCM, ADC/DAC, USB, MMC */
 289 static struct regulator_consumer_supply wm8350_dcdc4_consumers[] = {
 290         {
 291                 /* WM8580 */
 292                 .supply = "DVDD",
 293                 .dev_name = "0-001b",
 294         },
 295 };
 296
 297 static struct regulator_init_data wm8350_dcdc4_data = {
 298         .constraints = {
 299                 .name = "PVDD_HI/PVDD_EXT/PVDD_SYS/PVCCM2MTV",
 300                 .min_uV = 3000000,
 301                 .max_uV = 3000000,
 302                 .always_on = 1,
 303         },
 304         .num_consumer_supplies = ARRAY_SIZE(wm8350_dcdc4_consumers),
 305         .consumer_supplies = wm8350_dcdc4_consumers,
 306 };
 307
 308 /* ARM core */
 309 static struct regulator_consumer_supply dcdc6_consumers[] = {
 310         {
 311                 .supply = "vddarm",
 312         }
 313 };
 314
 315 static struct regulator_init_data wm8350_dcdc6_data = {
 316         .constraints = {
 317                 .name = "PVDD_ARM",
 318                 .min_uV = 1000000,
 319                 .max_uV = 1300000,
 320                 .always_on = 1,
 321                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
 322         },
 323         .num_consumer_supplies = ARRAY_SIZE(dcdc6_consumers),
 324         .consumer_supplies = dcdc6_consumers,
 325 };
 326
 327 /* Alive */
 328 static struct regulator_init_data wm8350_ldo1_data = {
 329         .constraints = {
 330                 .name = "PVDD_ALIVE",
 331                 .min_uV = 1200000,
 332                 .max_uV = 1200000,
 333                 .always_on = 1,
 334                 .apply_uV = 1,
 335         },
 336 };
 337
 338 /* OTG */
 339 static struct regulator_init_data wm8350_ldo2_data = {
 340         .constraints = {
 341                 .name = "PVDD_OTG",
 342                 .min_uV = 3300000,
 343                 .max_uV = 3300000,
 344                 .always_on = 1,
 345         },
 346 };
 347
 348 /* LCD */
 349 static struct regulator_init_data wm8350_ldo3_data = {
 350         .constraints = {
 351                 .name = "PVDD_LCD",
 352                 .min_uV = 3000000,
 353                 .max_uV = 3000000,
 354                 .always_on = 1,
 355         },
 356 };
 357
 358 /* OTGi/1190-EV1 HPVDD & AVDD */
 359 static struct regulator_init_data wm8350_ldo4_data = {
 360         .constraints = {
 361                 .name = "PVDD_OTGI/HPVDD/AVDD",
 362                 .min_uV = 1200000,
 363                 .max_uV = 1200000,
 364                 .apply_uV = 1,
 365                 .always_on = 1,
 366         },
 367 };
 368
 369 static struct {
 370         int regulator;
 371         struct regulator_init_data *initdata;
 372 } wm1190_regulators[] = {
 373         { WM8350_DCDC_1, &wm8350_dcdc1_data },
 374         { WM8350_DCDC_3, &wm8350_dcdc3_data },
 375         { WM8350_DCDC_4, &wm8350_dcdc4_data },
 376         { WM8350_DCDC_6, &wm8350_dcdc6_data },
 377         { WM8350_LDO_1, &wm8350_ldo1_data },
 378         { WM8350_LDO_2, &wm8350_ldo2_data },
 379         { WM8350_LDO_3, &wm8350_ldo3_data },
 380         { WM8350_LDO_4, &wm8350_ldo4_data },
 381 };
 382
 383 static int __init smdk6410_wm8350_init(struct wm8350 *wm8350)
 384 {
 385         int i;
 386
 387         /* Configure the IRQ line */
 388         s3c_gpio_setpull(S3C64XX_GPN(12), S3C_GPIO_PULL_UP);
 389
 390         /* Instantiate the regulators */
 391         for (i = 0; i < ARRAY_SIZE(wm1190_regulators); i++)
 392                 wm8350_register_regulator(wm8350,
 393                                           wm1190_regulators[i].regulator,
 394                                           wm1190_regulators[i].initdata);
 395
 396         return 0;
 397 }
 398
 399 static struct wm8350_platform_data __initdata smdk6410_wm8350_pdata = {
 400         .init = smdk6410_wm8350_init,
 401         .irq_high = 1,
 402         .irq_base = IRQ_BOARD_START,
 403 };
 404 #endif
 405
 406 static struct i2c_board_info i2c_devs0[] __initdata = {
 407         { I2C_BOARD_INFO("24c08", 0x50), },
 408         { I2C_BOARD_INFO("wm8580", 0x1b), },
 409
 410 #ifdef CONFIG_SMDK6410_WM1190_EV1
 411         { I2C_BOARD_INFO("wm8350", 0x1a),
 412           .platform_data = &smdk6410_wm8350_pdata,
 413           .irq = S3C_EINT(12),
 414         },
 415 #endif
 416 };
 417
 418 static struct i2c_board_info i2c_devs1[] __initdata = {
 419         { I2C_BOARD_INFO("24c128", 0x57), },    /* Samsung S524AD0XD1 */
 420 };
 421
 422 static void __init smdk6410_map_io(void)
 423 {
 424         u32 tmp;
 425
 426         s3c64xx_init_io(smdk6410_iodesc, ARRAY_SIZE(smdk6410_iodesc));
 427         s3c24xx_init_clocks(12000000);
 428         s3c24xx_init_uarts(smdk6410_uartcfgs, ARRAY_SIZE(smdk6410_uartcfgs));
 429
 430         /* set the LCD type */
 431
 432         tmp = __raw_readl(S3C64XX_SPCON);
 433         tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
 434         tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
 435         __raw_writel(tmp, S3C64XX_SPCON);
 436
 437         /* remove the lcd bypass */
 438         tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
 439         tmp &= ~MIFPCON_LCD_BYPASS;
 440         __raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
 441 }
 442
 443 static void __init smdk6410_machine_init(void)
 444 {
 445         u32 cs1;
 446
 447         s3c_i2c0_set_platdata(NULL);
 448         s3c_i2c1_set_platdata(NULL);
 449         s3c_fb_set_platdata(&smdk6410_lcd_pdata);
 450
 451         /* configure nCS1 width to 16 bits */
 452
 453         cs1 = __raw_readl(S3C64XX_SROM_BW) &
 454                     ~(S3C64XX_SROM_BW__CS_MASK << S3C64XX_SROM_BW__NCS1__SHIFT);
 455         cs1 |= ((1 << S3C64XX_SROM_BW__DATAWIDTH__SHIFT) |
 456                 (1 << S3C64XX_SROM_BW__WAITENABLE__SHIFT) |
 457                 (1 << S3C64XX_SROM_BW__BYTEENABLE__SHIFT)) <<
 458                                                    S3C64XX_SROM_BW__NCS1__SHIFT;
 459         __raw_writel(cs1, S3C64XX_SROM_BW);
 460
 461         /* set timing for nCS1 suitable for ethernet chip */
 462
 463         __raw_writel((0 << S3C64XX_SROM_BCX__PMC__SHIFT) |
 464                      (6 << S3C64XX_SROM_BCX__TACP__SHIFT) |
 465                      (4 << S3C64XX_SROM_BCX__TCAH__SHIFT) |
 466                      (1 << S3C64XX_SROM_BCX__TCOH__SHIFT) |
 467                      (0xe << S3C64XX_SROM_BCX__TACC__SHIFT) |
 468                      (4 << S3C64XX_SROM_BCX__TCOS__SHIFT) |
 469                      (0 << S3C64XX_SROM_BCX__TACS__SHIFT), S3C64XX_SROM_BC1);
 470
 471         gpio_request(S3C64XX_GPN(5), "LCD power");
 472         gpio_request(S3C64XX_GPF(13), "LCD power");
 473         gpio_request(S3C64XX_GPF(15), "LCD power");
 474
 475         i2c_register_board_info(0, i2c_devs0, ARRAY_SIZE(i2c_devs0));
 476         i2c_register_board_info(1, i2c_devs1, ARRAY_SIZE(i2c_devs1));
 477
 478         platform_add_devices(smdk6410_devices, ARRAY_SIZE(smdk6410_devices));
 479 }
 480
 481 MACHINE_START(SMDK6410, "SMDK6410")
 482         /* Maintainer: Ben Dooks <ben@fluff.org> */
 483         .phys_io        = S3C_PA_UART & 0xfff00000,
 484         .io_pg_offst    = (((u32)S3C_VA_UART) >> 18) & 0xfffc,
 485         .boot_params    = S3C64XX_PA_SDRAM + 0x100,
 486
 487         .init_irq       = s3c6410_init_irq,
 488         .map_io         = smdk6410_map_io,
 489         .init_machine   = smdk6410_machine_init,
 490         .timer          = &s3c24xx_timer,
 491 MACHINE_END