git.oblomov.eu Git - linux-2.6/blob - 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        = 0x3c5,
  69                 .ulcon       = 0x03,
  70                 .ufcon       = 0x51,
  71         },
  72         [1] = {
  73                 .hwport      = 1,
  74                 .flags       = 0,
  75                 .ucon        = 0x3c5,
  76                 .ulcon       = 0x03,
  77                 .ufcon       = 0x51,
  78         },
  79 };
  80
  81 /* framebuffer and LCD setup. */
  82
  83 /* GPF15 = LCD backlight control
  84  * GPF13 => Panel power
  85  * GPN5 = LCD nRESET signal
  86  * PWM_TOUT1 => backlight brightness
  87  */
  88
  89 static void smdk6410_lcd_power_set(struct plat_lcd_data *pd,
  90                                    unsigned int power)
  91 {
  92         if (power) {
  93                 gpio_direction_output(S3C64XX_GPF(13), 1);
  94                 gpio_direction_output(S3C64XX_GPF(15), 1);
  95
  96                 /* fire nRESET on power up */
  97                 gpio_direction_output(S3C64XX_GPN(5), 0);
  98                 msleep(10);
  99                 gpio_direction_output(S3C64XX_GPN(5), 1);
 100                 msleep(1);
 101         } else {
 102                 gpio_direction_output(S3C64XX_GPF(15), 0);
 103                 gpio_direction_output(S3C64XX_GPF(13), 0);
 104         }
 105 }
 106
 107 static struct plat_lcd_data smdk6410_lcd_power_data = {
 108         .set_power      = smdk6410_lcd_power_set,
 109 };
 110
 111 static struct platform_device smdk6410_lcd_powerdev = {
 112         .name                   = "platform-lcd",
 113         .dev.parent             = &s3c_device_fb.dev,
 114         .dev.platform_data      = &smdk6410_lcd_power_data,
 115 };
 116
 117 static struct s3c_fb_pd_win smdk6410_fb_win0 = {
 118         /* this is to ensure we use win0 */
 119         .win_mode       = {
 120                 .pixclock       = 41094,
 121                 .left_margin    = 8,
 122                 .right_margin   = 13,
 123                 .upper_margin   = 7,
 124                 .lower_margin   = 5,
 125                 .hsync_len      = 3,
 126                 .vsync_len      = 1,
 127                 .xres           = 800,
 128                 .yres           = 480,
 129         },
 130         .max_bpp        = 32,
 131         .default_bpp    = 16,
 132 };
 133
 134 /* 405566 clocks per frame => 60Hz refresh requires 24333960Hz clock */
 135 static struct s3c_fb_platdata smdk6410_lcd_pdata __initdata = {
 136         .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
 137         .win[0]         = &smdk6410_fb_win0,
 138         .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
 139         .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
 140 };
 141
 142 static struct resource smdk6410_smsc911x_resources[] = {
 143         [0] = {
 144                 .start = 0x18000000,
 145                 .end   = 0x18000000 + SZ_64K - 1,
 146                 .flags = IORESOURCE_MEM,
 147         },
 148         [1] = {
 149                 .start = S3C_EINT(10),
 150                 .end   = S3C_EINT(10),
 151                 .flags = IORESOURCE_IRQ | IRQ_TYPE_LEVEL_LOW,
 152         },
 153 };
 154
 155 static struct smsc911x_platform_config smdk6410_smsc911x_pdata = {
 156         .irq_polarity  = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
 157         .irq_type      = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
 158         .flags         = SMSC911X_USE_32BIT | SMSC911X_FORCE_INTERNAL_PHY,
 159         .phy_interface = PHY_INTERFACE_MODE_MII,
 160 };
 161
 162
 163 static struct platform_device smdk6410_smsc911x = {
 164         .name          = "smsc911x",
 165         .id            = -1,
 166         .num_resources = ARRAY_SIZE(smdk6410_smsc911x_resources),
 167         .resource      = &smdk6410_smsc911x_resources[0],
 168         .dev = {
 169                 .platform_data = &smdk6410_smsc911x_pdata,
 170         },
 171 };
 172
 173 static struct map_desc smdk6410_iodesc[] = {};
 174
 175 static struct platform_device *smdk6410_devices[] __initdata = {
 176 #ifdef CONFIG_SMDK6410_SD_CH0
 177         &s3c_device_hsmmc0,
 178 #endif
 179 #ifdef CONFIG_SMDK6410_SD_CH1
 180         &s3c_device_hsmmc1,
 181 #endif
 182         &s3c_device_i2c0,
 183         &s3c_device_i2c1,
 184         &s3c_device_fb,
 185         &smdk6410_lcd_powerdev,
 186
 187         &smdk6410_smsc911x,
 188 };
 189
 190 #ifdef CONFIG_SMDK6410_WM1190_EV1
 191 /* S3C64xx internal logic & PLL */
 192 static struct regulator_init_data wm8350_dcdc1_data = {
 193         .constraints = {
 194                 .name = "PVDD_INT/PVDD_PLL",
 195                 .min_uV = 1200000,
 196                 .max_uV = 1200000,
 197                 .always_on = 1,
 198                 .apply_uV = 1,
 199         },
 200 };
 201
 202 /* Memory */
 203 static struct regulator_init_data wm8350_dcdc3_data = {
 204         .constraints = {
 205                 .name = "PVDD_MEM",
 206                 .min_uV = 1800000,
 207                 .max_uV = 1800000,
 208                 .always_on = 1,
 209                 .state_mem = {
 210                          .uV = 1800000,
 211                          .mode = REGULATOR_MODE_NORMAL,
 212                          .enabled = 1,
 213                  },
 214                 .initial_state = PM_SUSPEND_MEM,
 215         },
 216 };
 217
 218 /* USB, EXT, PCM, ADC/DAC, USB, MMC */
 219 static struct regulator_init_data wm8350_dcdc4_data = {
 220         .constraints = {
 221                 .name = "PVDD_HI/PVDD_EXT/PVDD_SYS/PVCCM2MTV",
 222                 .min_uV = 3000000,
 223                 .max_uV = 3000000,
 224                 .always_on = 1,
 225         },
 226 };
 227
 228 /* ARM core */
 229 static struct regulator_init_data wm8350_dcdc6_data = {
 230         .constraints = {
 231                 .name = "PVDD_ARM",
 232                 .min_uV = 1000000,
 233                 .max_uV = 1300000,
 234                 .always_on = 1,
 235         },
 236 };
 237
 238 /* Alive */
 239 static struct regulator_init_data wm8350_ldo1_data = {
 240         .constraints = {
 241                 .name = "PVDD_ALIVE",
 242                 .min_uV = 1200000,
 243                 .max_uV = 1200000,
 244                 .always_on = 1,
 245                 .apply_uV = 1,
 246         },
 247 };
 248
 249 /* OTG */
 250 static struct regulator_init_data wm8350_ldo2_data = {
 251         .constraints = {
 252                 .name = "PVDD_OTG",
 253                 .min_uV = 3300000,
 254                 .max_uV = 3300000,
 255                 .always_on = 1,
 256         },
 257 };
 258
 259 /* LCD */
 260 static struct regulator_init_data wm8350_ldo3_data = {
 261         .constraints = {
 262                 .name = "PVDD_LCD",
 263                 .min_uV = 3000000,
 264                 .max_uV = 3000000,
 265                 .always_on = 1,
 266         },
 267 };
 268
 269 /* OTGi/1190-EV1 HPVDD & AVDD */
 270 static struct regulator_init_data wm8350_ldo4_data = {
 271         .constraints = {
 272                 .name = "PVDD_OTGI/HPVDD/AVDD",
 273                 .min_uV = 1200000,
 274                 .max_uV = 1200000,
 275                 .apply_uV = 1,
 276                 .always_on = 1,
 277         },
 278 };
 279
 280 static struct {
 281         int regulator;
 282         struct regulator_init_data *initdata;
 283 } wm1190_regulators[] = {
 284         { WM8350_DCDC_1, &wm8350_dcdc1_data },
 285         { WM8350_DCDC_3, &wm8350_dcdc3_data },
 286         { WM8350_DCDC_4, &wm8350_dcdc4_data },
 287         { WM8350_DCDC_6, &wm8350_dcdc6_data },
 288         { WM8350_LDO_1, &wm8350_ldo1_data },
 289         { WM8350_LDO_2, &wm8350_ldo2_data },
 290         { WM8350_LDO_3, &wm8350_ldo3_data },
 291         { WM8350_LDO_4, &wm8350_ldo4_data },
 292 };
 293
 294 static int __init smdk6410_wm8350_init(struct wm8350 *wm8350)
 295 {
 296         int i;
 297
 298         /* Instantiate the regulators */
 299         for (i = 0; i < ARRAY_SIZE(wm1190_regulators); i++)
 300                 wm8350_register_regulator(wm8350,
 301                                           wm1190_regulators[i].regulator,
 302                                           wm1190_regulators[i].initdata);
 303
 304         return 0;
 305 }
 306
 307 static struct wm8350_platform_data __initdata smdk6410_wm8350_pdata = {
 308         .init = smdk6410_wm8350_init,
 309         .irq_high = 1,
 310 };
 311 #endif
 312
 313 static struct i2c_board_info i2c_devs0[] __initdata = {
 314         { I2C_BOARD_INFO("24c08", 0x50), },
 315         { I2C_BOARD_INFO("wm8580", 0x1b), },
 316
 317 #ifdef CONFIG_SMDK6410_WM1190_EV1
 318         { I2C_BOARD_INFO("wm8350", 0x1a),
 319           .platform_data = &smdk6410_wm8350_pdata,
 320           .irq = S3C_EINT(12),
 321         },
 322 #endif
 323 };
 324
 325 static struct i2c_board_info i2c_devs1[] __initdata = {
 326         { I2C_BOARD_INFO("24c128", 0x57), },    /* Samsung S524AD0XD1 */
 327 };
 328
 329 static void __init smdk6410_map_io(void)
 330 {
 331         u32 tmp;
 332
 333         s3c64xx_init_io(smdk6410_iodesc, ARRAY_SIZE(smdk6410_iodesc));
 334         s3c24xx_init_clocks(12000000);
 335         s3c24xx_init_uarts(smdk6410_uartcfgs, ARRAY_SIZE(smdk6410_uartcfgs));
 336
 337         /* set the LCD type */
 338
 339         tmp = __raw_readl(S3C64XX_SPCON);
 340         tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
 341         tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
 342         __raw_writel(tmp, S3C64XX_SPCON);
 343
 344         /* remove the lcd bypass */
 345         tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
 346         tmp &= ~MIFPCON_LCD_BYPASS;
 347         __raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
 348 }
 349
 350 static void __init smdk6410_machine_init(void)
 351 {
 352         s3c_i2c0_set_platdata(NULL);
 353         s3c_i2c1_set_platdata(NULL);
 354         s3c_fb_set_platdata(&smdk6410_lcd_pdata);
 355
 356         gpio_request(S3C64XX_GPN(5), "LCD power");
 357         gpio_request(S3C64XX_GPF(13), "LCD power");
 358         gpio_request(S3C64XX_GPF(15), "LCD power");
 359
 360         i2c_register_board_info(0, i2c_devs0, ARRAY_SIZE(i2c_devs0));
 361         i2c_register_board_info(1, i2c_devs1, ARRAY_SIZE(i2c_devs1));
 362
 363         platform_add_devices(smdk6410_devices, ARRAY_SIZE(smdk6410_devices));
 364 }
 365
 366 MACHINE_START(SMDK6410, "SMDK6410")
 367         /* Maintainer: Ben Dooks <ben@fluff.org> */
 368         .phys_io        = S3C_PA_UART & 0xfff00000,
 369         .io_pg_offst    = (((u32)S3C_VA_UART) >> 18) & 0xfffc,
 370         .boot_params    = S3C64XX_PA_SDRAM + 0x100,
 371
 372         .init_irq       = s3c6410_init_irq,
 373         .map_io         = smdk6410_map_io,
 374         .init_machine   = smdk6410_machine_init,
 375         .timer          = &s3c24xx_timer,
 376 MACHINE_END