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/iic.h>
  53 #include <plat/fb.h>
  54 #include <plat/gpio-cfg.h>
  55
  56 #include <plat/s3c6410.h>
  57 #include <plat/clock.h>
  58 #include <plat/devs.h>
  59 #include <plat/cpu.h>
  60
  61 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
  62 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
  63 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
  64
  65 static struct s3c2410_uartcfg smdk6410_uartcfgs[] __initdata = {
  66         [0] = {
  67                 .hwport      = 0,
  68                 .flags       = 0,
  69                 .ucon        = UCON,
  70                 .ulcon       = ULCON,
  71                 .ufcon       = UFCON,
  72         },
  73         [1] = {
  74                 .hwport      = 1,
  75                 .flags       = 0,
  76                 .ucon        = UCON,
  77                 .ulcon       = ULCON,
  78                 .ufcon       = UFCON,
  79         },
  80         [2] = {
  81                 .hwport      = 2,
  82                 .flags       = 0,
  83                 .ucon        = UCON,
  84                 .ulcon       = ULCON,
  85                 .ufcon       = UFCON,
  86         },
  87         [3] = {
  88                 .hwport      = 3,
  89                 .flags       = 0,
  90                 .ucon        = UCON,
  91                 .ulcon       = ULCON,
  92                 .ufcon       = UFCON,
  93         },
  94 };
  95
  96 /* framebuffer and LCD setup. */
  97
  98 /* GPF15 = LCD backlight control
  99  * GPF13 => Panel power
 100  * GPN5 = LCD nRESET signal
 101  * PWM_TOUT1 => backlight brightness
 102  */
 103
 104 static void smdk6410_lcd_power_set(struct plat_lcd_data *pd,
 105                                    unsigned int power)
 106 {
 107         if (power) {
 108                 gpio_direction_output(S3C64XX_GPF(13), 1);
 109                 gpio_direction_output(S3C64XX_GPF(15), 1);
 110
 111                 /* fire nRESET on power up */
 112                 gpio_direction_output(S3C64XX_GPN(5), 0);
 113                 msleep(10);
 114                 gpio_direction_output(S3C64XX_GPN(5), 1);
 115                 msleep(1);
 116         } else {
 117                 gpio_direction_output(S3C64XX_GPF(15), 0);
 118                 gpio_direction_output(S3C64XX_GPF(13), 0);
 119         }
 120 }
 121
 122 static struct plat_lcd_data smdk6410_lcd_power_data = {
 123         .set_power      = smdk6410_lcd_power_set,
 124 };
 125
 126 static struct platform_device smdk6410_lcd_powerdev = {
 127         .name                   = "platform-lcd",
 128         .dev.parent             = &s3c_device_fb.dev,
 129         .dev.platform_data      = &smdk6410_lcd_power_data,
 130 };
 131
 132 static struct s3c_fb_pd_win smdk6410_fb_win0 = {
 133         /* this is to ensure we use win0 */
 134         .win_mode       = {
 135                 .pixclock       = 41094,
 136                 .left_margin    = 8,
 137                 .right_margin   = 13,
 138                 .upper_margin   = 7,
 139                 .lower_margin   = 5,
 140                 .hsync_len      = 3,
 141                 .vsync_len      = 1,
 142                 .xres           = 800,
 143                 .yres           = 480,
 144         },
 145         .max_bpp        = 32,
 146         .default_bpp    = 16,
 147 };
 148
 149 /* 405566 clocks per frame => 60Hz refresh requires 24333960Hz clock */
 150 static struct s3c_fb_platdata smdk6410_lcd_pdata __initdata = {
 151         .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
 152         .win[0]         = &smdk6410_fb_win0,
 153         .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
 154         .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
 155 };
 156
 157 static struct resource smdk6410_smsc911x_resources[] = {
 158         [0] = {
 159                 .start = 0x18000000,
 160                 .end   = 0x18000000 + SZ_64K - 1,
 161                 .flags = IORESOURCE_MEM,
 162         },
 163         [1] = {
 164                 .start = S3C_EINT(10),
 165                 .end   = S3C_EINT(10),
 166                 .flags = IORESOURCE_IRQ | IRQ_TYPE_LEVEL_LOW,
 167         },
 168 };
 169
 170 static struct smsc911x_platform_config smdk6410_smsc911x_pdata = {
 171         .irq_polarity  = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
 172         .irq_type      = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
 173         .flags         = SMSC911X_USE_32BIT | SMSC911X_FORCE_INTERNAL_PHY,
 174         .phy_interface = PHY_INTERFACE_MODE_MII,
 175 };
 176
 177
 178 static struct platform_device smdk6410_smsc911x = {
 179         .name          = "smsc911x",
 180         .id            = -1,
 181         .num_resources = ARRAY_SIZE(smdk6410_smsc911x_resources),
 182         .resource      = &smdk6410_smsc911x_resources[0],
 183         .dev = {
 184                 .platform_data = &smdk6410_smsc911x_pdata,
 185         },
 186 };
 187
 188 #ifdef CONFIG_REGULATOR
 189 static struct regulator_consumer_supply smdk6410_b_pwr_5v_consumers[] = {
 190         {
 191                 /* WM8580 */
 192                 .supply = "PVDD",
 193                 .dev_name = "0-001b",
 194         },
 195         {
 196                 /* WM8580 */
 197                 .supply = "AVDD",
 198                 .dev_name = "0-001b",
 199         },
 200 };
 201
 202 static struct regulator_init_data smdk6410_b_pwr_5v_data = {
 203         .constraints = {
 204                 .always_on = 1,
 205         },
 206         .num_consumer_supplies = ARRAY_SIZE(smdk6410_b_pwr_5v_consumers),
 207         .consumer_supplies = smdk6410_b_pwr_5v_consumers,
 208 };
 209
 210 static struct fixed_voltage_config smdk6410_b_pwr_5v_pdata = {
 211         .supply_name = "B_PWR_5V",
 212         .microvolts = 5000000,
 213         .init_data = &smdk6410_b_pwr_5v_data,
 214 };
 215
 216 static struct platform_device smdk6410_b_pwr_5v = {
 217         .name          = "reg-fixed-voltage",
 218         .id            = -1,
 219         .dev = {
 220                 .platform_data = &smdk6410_b_pwr_5v_pdata,
 221         },
 222 };
 223 #endif
 224
 225 static struct map_desc smdk6410_iodesc[] = {};
 226
 227 static struct platform_device *smdk6410_devices[] __initdata = {
 228 #ifdef CONFIG_SMDK6410_SD_CH0
 229         &s3c_device_hsmmc0,
 230 #endif
 231 #ifdef CONFIG_SMDK6410_SD_CH1
 232         &s3c_device_hsmmc1,
 233 #endif
 234         &s3c_device_i2c0,
 235         &s3c_device_i2c1,
 236         &s3c_device_fb,
 237         &s3c_device_usb,
 238         &s3c_device_usb_hsotg,
 239
 240 #ifdef CONFIG_REGULATOR
 241         &smdk6410_b_pwr_5v,
 242 #endif
 243         &smdk6410_lcd_powerdev,
 244
 245         &smdk6410_smsc911x,
 246 };
 247
 248 #ifdef CONFIG_SMDK6410_WM1190_EV1
 249 /* S3C64xx internal logic & PLL */
 250 static struct regulator_init_data wm8350_dcdc1_data = {
 251         .constraints = {
 252                 .name = "PVDD_INT/PVDD_PLL",
 253                 .min_uV = 1200000,
 254                 .max_uV = 1200000,
 255                 .always_on = 1,
 256                 .apply_uV = 1,
 257         },
 258 };
 259
 260 /* Memory */
 261 static struct regulator_init_data wm8350_dcdc3_data = {
 262         .constraints = {
 263                 .name = "PVDD_MEM",
 264                 .min_uV = 1800000,
 265                 .max_uV = 1800000,
 266                 .always_on = 1,
 267                 .state_mem = {
 268                          .uV = 1800000,
 269                          .mode = REGULATOR_MODE_NORMAL,
 270                          .enabled = 1,
 271                  },
 272                 .initial_state = PM_SUSPEND_MEM,
 273         },
 274 };
 275
 276 /* USB, EXT, PCM, ADC/DAC, USB, MMC */
 277 static struct regulator_consumer_supply wm8350_dcdc4_consumers[] = {
 278         {
 279                 /* WM8580 */
 280                 .supply = "DVDD",
 281                 .dev_name = "0-001b",
 282         },
 283 };
 284
 285 static struct regulator_init_data wm8350_dcdc4_data = {
 286         .constraints = {
 287                 .name = "PVDD_HI/PVDD_EXT/PVDD_SYS/PVCCM2MTV",
 288                 .min_uV = 3000000,
 289                 .max_uV = 3000000,
 290                 .always_on = 1,
 291         },
 292         .num_consumer_supplies = ARRAY_SIZE(wm8350_dcdc4_consumers),
 293         .consumer_supplies = wm8350_dcdc4_consumers,
 294 };
 295
 296 /* ARM core */
 297 static struct regulator_consumer_supply dcdc6_consumers[] = {
 298         {
 299                 .supply = "vddarm",
 300         }
 301 };
 302
 303 static struct regulator_init_data wm8350_dcdc6_data = {
 304         .constraints = {
 305                 .name = "PVDD_ARM",
 306                 .min_uV = 1000000,
 307                 .max_uV = 1300000,
 308                 .always_on = 1,
 309                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
 310         },
 311         .num_consumer_supplies = ARRAY_SIZE(dcdc6_consumers),
 312         .consumer_supplies = dcdc6_consumers,
 313 };
 314
 315 /* Alive */
 316 static struct regulator_init_data wm8350_ldo1_data = {
 317         .constraints = {
 318                 .name = "PVDD_ALIVE",
 319                 .min_uV = 1200000,
 320                 .max_uV = 1200000,
 321                 .always_on = 1,
 322                 .apply_uV = 1,
 323         },
 324 };
 325
 326 /* OTG */
 327 static struct regulator_init_data wm8350_ldo2_data = {
 328         .constraints = {
 329                 .name = "PVDD_OTG",
 330                 .min_uV = 3300000,
 331                 .max_uV = 3300000,
 332                 .always_on = 1,
 333         },
 334 };
 335
 336 /* LCD */
 337 static struct regulator_init_data wm8350_ldo3_data = {
 338         .constraints = {
 339                 .name = "PVDD_LCD",
 340                 .min_uV = 3000000,
 341                 .max_uV = 3000000,
 342                 .always_on = 1,
 343         },
 344 };
 345
 346 /* OTGi/1190-EV1 HPVDD & AVDD */
 347 static struct regulator_init_data wm8350_ldo4_data = {
 348         .constraints = {
 349                 .name = "PVDD_OTGI/HPVDD/AVDD",
 350                 .min_uV = 1200000,
 351                 .max_uV = 1200000,
 352                 .apply_uV = 1,
 353                 .always_on = 1,
 354         },
 355 };
 356
 357 static struct {
 358         int regulator;
 359         struct regulator_init_data *initdata;
 360 } wm1190_regulators[] = {
 361         { WM8350_DCDC_1, &wm8350_dcdc1_data },
 362         { WM8350_DCDC_3, &wm8350_dcdc3_data },
 363         { WM8350_DCDC_4, &wm8350_dcdc4_data },
 364         { WM8350_DCDC_6, &wm8350_dcdc6_data },
 365         { WM8350_LDO_1, &wm8350_ldo1_data },
 366         { WM8350_LDO_2, &wm8350_ldo2_data },
 367         { WM8350_LDO_3, &wm8350_ldo3_data },
 368         { WM8350_LDO_4, &wm8350_ldo4_data },
 369 };
 370
 371 static int __init smdk6410_wm8350_init(struct wm8350 *wm8350)
 372 {
 373         int i;
 374
 375         /* Configure the IRQ line */
 376         s3c_gpio_setpull(S3C64XX_GPN(12), S3C_GPIO_PULL_UP);
 377
 378         /* Instantiate the regulators */
 379         for (i = 0; i < ARRAY_SIZE(wm1190_regulators); i++)
 380                 wm8350_register_regulator(wm8350,
 381                                           wm1190_regulators[i].regulator,
 382                                           wm1190_regulators[i].initdata);
 383
 384         return 0;
 385 }
 386
 387 static struct wm8350_platform_data __initdata smdk6410_wm8350_pdata = {
 388         .init = smdk6410_wm8350_init,
 389         .irq_high = 1,
 390 };
 391 #endif
 392
 393 static struct i2c_board_info i2c_devs0[] __initdata = {
 394         { I2C_BOARD_INFO("24c08", 0x50), },
 395         { I2C_BOARD_INFO("wm8580", 0x1b), },
 396
 397 #ifdef CONFIG_SMDK6410_WM1190_EV1
 398         { I2C_BOARD_INFO("wm8350", 0x1a),
 399           .platform_data = &smdk6410_wm8350_pdata,
 400           .irq = S3C_EINT(12),
 401         },
 402 #endif
 403 };
 404
 405 static struct i2c_board_info i2c_devs1[] __initdata = {
 406         { I2C_BOARD_INFO("24c128", 0x57), },    /* Samsung S524AD0XD1 */
 407 };
 408
 409 static void __init smdk6410_map_io(void)
 410 {
 411         u32 tmp;
 412
 413         s3c64xx_init_io(smdk6410_iodesc, ARRAY_SIZE(smdk6410_iodesc));
 414         s3c24xx_init_clocks(12000000);
 415         s3c24xx_init_uarts(smdk6410_uartcfgs, ARRAY_SIZE(smdk6410_uartcfgs));
 416
 417         /* set the LCD type */
 418
 419         tmp = __raw_readl(S3C64XX_SPCON);
 420         tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
 421         tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
 422         __raw_writel(tmp, S3C64XX_SPCON);
 423
 424         /* remove the lcd bypass */
 425         tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
 426         tmp &= ~MIFPCON_LCD_BYPASS;
 427         __raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
 428 }
 429
 430 static void __init smdk6410_machine_init(void)
 431 {
 432         s3c_i2c0_set_platdata(NULL);
 433         s3c_i2c1_set_platdata(NULL);
 434         s3c_fb_set_platdata(&smdk6410_lcd_pdata);
 435
 436         gpio_request(S3C64XX_GPN(5), "LCD power");
 437         gpio_request(S3C64XX_GPF(13), "LCD power");
 438         gpio_request(S3C64XX_GPF(15), "LCD power");
 439
 440         i2c_register_board_info(0, i2c_devs0, ARRAY_SIZE(i2c_devs0));
 441         i2c_register_board_info(1, i2c_devs1, ARRAY_SIZE(i2c_devs1));
 442
 443         platform_add_devices(smdk6410_devices, ARRAY_SIZE(smdk6410_devices));
 444 }
 445
 446 MACHINE_START(SMDK6410, "SMDK6410")
 447         /* Maintainer: Ben Dooks <ben@fluff.org> */
 448         .phys_io        = S3C_PA_UART & 0xfff00000,
 449         .io_pg_offst    = (((u32)S3C_VA_UART) >> 18) & 0xfffc,
 450         .boot_params    = S3C64XX_PA_SDRAM + 0x100,
 451
 452         .init_irq       = s3c6410_init_irq,
 453         .map_io         = smdk6410_map_io,
 454         .init_machine   = smdk6410_machine_init,
 455         .timer          = &s3c24xx_timer,
 456 MACHINE_END