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
  29 #ifdef CONFIG_SMDK6410_WM1190_EV1
  30 #include <linux/mfd/wm8350/core.h>
  31 #include <linux/mfd/wm8350/pmic.h>
  32 #endif
  33
  34 #include <video/platform_lcd.h>
  35
  36 #include <asm/mach/arch.h>
  37 #include <asm/mach/map.h>
  38 #include <asm/mach/irq.h>
  39
  40 #include <mach/hardware.h>
  41 #include <mach/regs-fb.h>
  42 #include <mach/map.h>
  43
  44 #include <asm/irq.h>
  45 #include <asm/mach-types.h>
  46
  47 #include <plat/regs-serial.h>
  48 #include <plat/regs-modem.h>
  49 #include <plat/regs-gpio.h>
  50 #include <plat/regs-sys.h>
  51 #include <plat/iic.h>
  52 #include <plat/fb.h>
  53 #include <plat/gpio-cfg.h>
  54
  55 #include <plat/s3c6410.h>
  56 #include <plat/clock.h>
  57 #include <plat/devs.h>
  58 #include <plat/cpu.h>
  59
  60 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
  61 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
  62 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
  63
  64 static struct s3c2410_uartcfg smdk6410_uartcfgs[] __initdata = {
  65         [0] = {
  66                 .hwport      = 0,
  67                 .flags       = 0,
  68                 .ucon        = UCON,
  69                 .ulcon       = ULCON,
  70                 .ufcon       = UFCON,
  71         },
  72         [1] = {
  73                 .hwport      = 1,
  74                 .flags       = 0,
  75                 .ucon        = UCON,
  76                 .ulcon       = ULCON,
  77                 .ufcon       = UFCON,
  78         },
  79         [2] = {
  80                 .hwport      = 2,
  81                 .flags       = 0,
  82                 .ucon        = UCON,
  83                 .ulcon       = ULCON,
  84                 .ufcon       = UFCON,
  85         },
  86         [3] = {
  87                 .hwport      = 3,
  88                 .flags       = 0,
  89                 .ucon        = UCON,
  90                 .ulcon       = ULCON,
  91                 .ufcon       = UFCON,
  92         },
  93 };
  94
  95 /* framebuffer and LCD setup. */
  96
  97 /* GPF15 = LCD backlight control
  98  * GPF13 => Panel power
  99  * GPN5 = LCD nRESET signal
 100  * PWM_TOUT1 => backlight brightness
 101  */
 102
 103 static void smdk6410_lcd_power_set(struct plat_lcd_data *pd,
 104                                    unsigned int power)
 105 {
 106         if (power) {
 107                 gpio_direction_output(S3C64XX_GPF(13), 1);
 108                 gpio_direction_output(S3C64XX_GPF(15), 1);
 109
 110                 /* fire nRESET on power up */
 111                 gpio_direction_output(S3C64XX_GPN(5), 0);
 112                 msleep(10);
 113                 gpio_direction_output(S3C64XX_GPN(5), 1);
 114                 msleep(1);
 115         } else {
 116                 gpio_direction_output(S3C64XX_GPF(15), 0);
 117                 gpio_direction_output(S3C64XX_GPF(13), 0);
 118         }
 119 }
 120
 121 static struct plat_lcd_data smdk6410_lcd_power_data = {
 122         .set_power      = smdk6410_lcd_power_set,
 123 };
 124
 125 static struct platform_device smdk6410_lcd_powerdev = {
 126         .name                   = "platform-lcd",
 127         .dev.parent             = &s3c_device_fb.dev,
 128         .dev.platform_data      = &smdk6410_lcd_power_data,
 129 };
 130
 131 static struct s3c_fb_pd_win smdk6410_fb_win0 = {
 132         /* this is to ensure we use win0 */
 133         .win_mode       = {
 134                 .pixclock       = 41094,
 135                 .left_margin    = 8,
 136                 .right_margin   = 13,
 137                 .upper_margin   = 7,
 138                 .lower_margin   = 5,
 139                 .hsync_len      = 3,
 140                 .vsync_len      = 1,
 141                 .xres           = 800,
 142                 .yres           = 480,
 143         },
 144         .max_bpp        = 32,
 145         .default_bpp    = 16,
 146 };
 147
 148 /* 405566 clocks per frame => 60Hz refresh requires 24333960Hz clock */
 149 static struct s3c_fb_platdata smdk6410_lcd_pdata __initdata = {
 150         .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
 151         .win[0]         = &smdk6410_fb_win0,
 152         .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
 153         .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
 154 };
 155
 156 static struct resource smdk6410_smsc911x_resources[] = {
 157         [0] = {
 158                 .start = 0x18000000,
 159                 .end   = 0x18000000 + SZ_64K - 1,
 160                 .flags = IORESOURCE_MEM,
 161         },
 162         [1] = {
 163                 .start = S3C_EINT(10),
 164                 .end   = S3C_EINT(10),
 165                 .flags = IORESOURCE_IRQ | IRQ_TYPE_LEVEL_LOW,
 166         },
 167 };
 168
 169 static struct smsc911x_platform_config smdk6410_smsc911x_pdata = {
 170         .irq_polarity  = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
 171         .irq_type      = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
 172         .flags         = SMSC911X_USE_32BIT | SMSC911X_FORCE_INTERNAL_PHY,
 173         .phy_interface = PHY_INTERFACE_MODE_MII,
 174 };
 175
 176
 177 static struct platform_device smdk6410_smsc911x = {
 178         .name          = "smsc911x",
 179         .id            = -1,
 180         .num_resources = ARRAY_SIZE(smdk6410_smsc911x_resources),
 181         .resource      = &smdk6410_smsc911x_resources[0],
 182         .dev = {
 183                 .platform_data = &smdk6410_smsc911x_pdata,
 184         },
 185 };
 186
 187 static struct map_desc smdk6410_iodesc[] = {};
 188
 189 static struct platform_device *smdk6410_devices[] __initdata = {
 190 #ifdef CONFIG_SMDK6410_SD_CH0
 191         &s3c_device_hsmmc0,
 192 #endif
 193 #ifdef CONFIG_SMDK6410_SD_CH1
 194         &s3c_device_hsmmc1,
 195 #endif
 196         &s3c_device_i2c0,
 197         &s3c_device_i2c1,
 198         &s3c_device_fb,
 199         &s3c_device_usb,
 200         &s3c_device_usb_hsotg,
 201         &smdk6410_lcd_powerdev,
 202
 203         &smdk6410_smsc911x,
 204 };
 205
 206 #ifdef CONFIG_SMDK6410_WM1190_EV1
 207 /* S3C64xx internal logic & PLL */
 208 static struct regulator_init_data wm8350_dcdc1_data = {
 209         .constraints = {
 210                 .name = "PVDD_INT/PVDD_PLL",
 211                 .min_uV = 1200000,
 212                 .max_uV = 1200000,
 213                 .always_on = 1,
 214                 .apply_uV = 1,
 215         },
 216 };
 217
 218 /* Memory */
 219 static struct regulator_init_data wm8350_dcdc3_data = {
 220         .constraints = {
 221                 .name = "PVDD_MEM",
 222                 .min_uV = 1800000,
 223                 .max_uV = 1800000,
 224                 .always_on = 1,
 225                 .state_mem = {
 226                          .uV = 1800000,
 227                          .mode = REGULATOR_MODE_NORMAL,
 228                          .enabled = 1,
 229                  },
 230                 .initial_state = PM_SUSPEND_MEM,
 231         },
 232 };
 233
 234 /* USB, EXT, PCM, ADC/DAC, USB, MMC */
 235 static struct regulator_init_data wm8350_dcdc4_data = {
 236         .constraints = {
 237                 .name = "PVDD_HI/PVDD_EXT/PVDD_SYS/PVCCM2MTV",
 238                 .min_uV = 3000000,
 239                 .max_uV = 3000000,
 240                 .always_on = 1,
 241         },
 242 };
 243
 244 /* ARM core */
 245 static struct regulator_consumer_supply dcdc6_consumers[] = {
 246         {
 247                 .supply = "vddarm",
 248         }
 249 };
 250
 251 static struct regulator_init_data wm8350_dcdc6_data = {
 252         .constraints = {
 253                 .name = "PVDD_ARM",
 254                 .min_uV = 1000000,
 255                 .max_uV = 1300000,
 256                 .always_on = 1,
 257                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
 258         },
 259         .num_consumer_supplies = ARRAY_SIZE(dcdc6_consumers),
 260         .consumer_supplies = dcdc6_consumers,
 261 };
 262
 263 /* Alive */
 264 static struct regulator_init_data wm8350_ldo1_data = {
 265         .constraints = {
 266                 .name = "PVDD_ALIVE",
 267                 .min_uV = 1200000,
 268                 .max_uV = 1200000,
 269                 .always_on = 1,
 270                 .apply_uV = 1,
 271         },
 272 };
 273
 274 /* OTG */
 275 static struct regulator_init_data wm8350_ldo2_data = {
 276         .constraints = {
 277                 .name = "PVDD_OTG",
 278                 .min_uV = 3300000,
 279                 .max_uV = 3300000,
 280                 .always_on = 1,
 281         },
 282 };
 283
 284 /* LCD */
 285 static struct regulator_init_data wm8350_ldo3_data = {
 286         .constraints = {
 287                 .name = "PVDD_LCD",
 288                 .min_uV = 3000000,
 289                 .max_uV = 3000000,
 290                 .always_on = 1,
 291         },
 292 };
 293
 294 /* OTGi/1190-EV1 HPVDD & AVDD */
 295 static struct regulator_init_data wm8350_ldo4_data = {
 296         .constraints = {
 297                 .name = "PVDD_OTGI/HPVDD/AVDD",
 298                 .min_uV = 1200000,
 299                 .max_uV = 1200000,
 300                 .apply_uV = 1,
 301                 .always_on = 1,
 302         },
 303 };
 304
 305 static struct {
 306         int regulator;
 307         struct regulator_init_data *initdata;
 308 } wm1190_regulators[] = {
 309         { WM8350_DCDC_1, &wm8350_dcdc1_data },
 310         { WM8350_DCDC_3, &wm8350_dcdc3_data },
 311         { WM8350_DCDC_4, &wm8350_dcdc4_data },
 312         { WM8350_DCDC_6, &wm8350_dcdc6_data },
 313         { WM8350_LDO_1, &wm8350_ldo1_data },
 314         { WM8350_LDO_2, &wm8350_ldo2_data },
 315         { WM8350_LDO_3, &wm8350_ldo3_data },
 316         { WM8350_LDO_4, &wm8350_ldo4_data },
 317 };
 318
 319 static int __init smdk6410_wm8350_init(struct wm8350 *wm8350)
 320 {
 321         int i;
 322
 323         /* Configure the IRQ line */
 324         s3c_gpio_setpull(S3C64XX_GPN(12), S3C_GPIO_PULL_UP);
 325
 326         /* Instantiate the regulators */
 327         for (i = 0; i < ARRAY_SIZE(wm1190_regulators); i++)
 328                 wm8350_register_regulator(wm8350,
 329                                           wm1190_regulators[i].regulator,
 330                                           wm1190_regulators[i].initdata);
 331
 332         return 0;
 333 }
 334
 335 static struct wm8350_platform_data __initdata smdk6410_wm8350_pdata = {
 336         .init = smdk6410_wm8350_init,
 337         .irq_high = 1,
 338 };
 339 #endif
 340
 341 static struct i2c_board_info i2c_devs0[] __initdata = {
 342         { I2C_BOARD_INFO("24c08", 0x50), },
 343         { I2C_BOARD_INFO("wm8580", 0x1b), },
 344
 345 #ifdef CONFIG_SMDK6410_WM1190_EV1
 346         { I2C_BOARD_INFO("wm8350", 0x1a),
 347           .platform_data = &smdk6410_wm8350_pdata,
 348           .irq = S3C_EINT(12),
 349         },
 350 #endif
 351 };
 352
 353 static struct i2c_board_info i2c_devs1[] __initdata = {
 354         { I2C_BOARD_INFO("24c128", 0x57), },    /* Samsung S524AD0XD1 */
 355 };
 356
 357 static void __init smdk6410_map_io(void)
 358 {
 359         u32 tmp;
 360
 361         s3c64xx_init_io(smdk6410_iodesc, ARRAY_SIZE(smdk6410_iodesc));
 362         s3c24xx_init_clocks(12000000);
 363         s3c24xx_init_uarts(smdk6410_uartcfgs, ARRAY_SIZE(smdk6410_uartcfgs));
 364
 365         /* set the LCD type */
 366
 367         tmp = __raw_readl(S3C64XX_SPCON);
 368         tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
 369         tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
 370         __raw_writel(tmp, S3C64XX_SPCON);
 371
 372         /* remove the lcd bypass */
 373         tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
 374         tmp &= ~MIFPCON_LCD_BYPASS;
 375         __raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
 376 }
 377
 378 static void __init smdk6410_machine_init(void)
 379 {
 380         s3c_i2c0_set_platdata(NULL);
 381         s3c_i2c1_set_platdata(NULL);
 382         s3c_fb_set_platdata(&smdk6410_lcd_pdata);
 383
 384         gpio_request(S3C64XX_GPN(5), "LCD power");
 385         gpio_request(S3C64XX_GPF(13), "LCD power");
 386         gpio_request(S3C64XX_GPF(15), "LCD power");
 387
 388         i2c_register_board_info(0, i2c_devs0, ARRAY_SIZE(i2c_devs0));
 389         i2c_register_board_info(1, i2c_devs1, ARRAY_SIZE(i2c_devs1));
 390
 391         platform_add_devices(smdk6410_devices, ARRAY_SIZE(smdk6410_devices));
 392 }
 393
 394 MACHINE_START(SMDK6410, "SMDK6410")
 395         /* Maintainer: Ben Dooks <ben@fluff.org> */
 396         .phys_io        = S3C_PA_UART & 0xfff00000,
 397         .io_pg_offst    = (((u32)S3C_VA_UART) >> 18) & 0xfffc,
 398         .boot_params    = S3C64XX_PA_SDRAM + 0x100,
 399
 400         .init_irq       = s3c6410_init_irq,
 401         .map_io         = smdk6410_map_io,
 402         .init_machine   = smdk6410_machine_init,
 403         .timer          = &s3c24xx_timer,
 404 MACHINE_END