arch/arm/mach-s3c64xx/mach-mini6410.c

   1 /* linux/arch/arm/mach-s3c64xx/mach-mini6410.c
   2  *
   3  * Copyright 2010 Darius Augulis <augulis.darius@gmail.com>
   4  * Copyright 2008 Openmoko, Inc.
   5  * Copyright 2008 Simtec Electronics
   6  *      Ben Dooks <ben@simtec.co.uk>
   7  *      http://armlinux.simtec.co.uk/
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  *
  13 */
  14
  15 #include <linux/init.h>
  16 #include <linux/interrupt.h>
  17 #include <linux/fb.h>
  18 #include <linux/gpio.h>
  19 #include <linux/kernel.h>
  20 #include <linux/list.h>
  21 #include <linux/dm9000.h>
  22 #include <linux/mtd/mtd.h>
  23 #include <linux/mtd/partitions.h>
  24 #include <linux/serial_core.h>
  25 #include <linux/serial_s3c.h>
  26 #include <linux/types.h>
  27
  28 #include <asm/mach-types.h>
  29 #include <asm/mach/arch.h>
  30 #include <asm/mach/map.h>
  31
  32 #include <mach/map.h>
  33 #include <mach/regs-gpio.h>
  34 #include <mach/gpio-samsung.h>
  35
  36 #include <plat/adc.h>
  37 #include <plat/cpu.h>
  38 #include <plat/devs.h>
  39 #include <plat/fb.h>
  40 #include <linux/platform_data/mtd-nand-s3c2410.h>
  41 #include <linux/platform_data/mmc-sdhci-s3c.h>
  42 #include <plat/sdhci.h>
  43 #include <linux/platform_data/touchscreen-s3c2410.h>
  44
  45 #include <video/platform_lcd.h>
  46 #include <video/samsung_fimd.h>
  47 #include <plat/samsung-time.h>
  48
  49 #include "common.h"
  50 #include "regs-modem.h"
  51 #include "regs-srom.h"
  52
  53 #define UCON S3C2410_UCON_DEFAULT
  54 #define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB)
  55 #define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
  56
  57 static struct s3c2410_uartcfg mini6410_uartcfgs[] __initdata = {
  58         [0] = {
  59                 .hwport = 0,
  60                 .flags  = 0,
  61                 .ucon   = UCON,
  62                 .ulcon  = ULCON,
  63                 .ufcon  = UFCON,
  64         },
  65         [1] = {
  66                 .hwport = 1,
  67                 .flags  = 0,
  68                 .ucon   = UCON,
  69                 .ulcon  = ULCON,
  70                 .ufcon  = UFCON,
  71         },
  72         [2] = {
  73                 .hwport = 2,
  74                 .flags  = 0,
  75                 .ucon   = UCON,
  76                 .ulcon  = ULCON,
  77                 .ufcon  = UFCON,
  78         },
  79         [3] = {
  80                 .hwport = 3,
  81                 .flags  = 0,
  82                 .ucon   = UCON,
  83                 .ulcon  = ULCON,
  84                 .ufcon  = UFCON,
  85         },
  86 };
  87
  88 /* DM9000AEP 10/100 ethernet controller */
  89
  90 static struct resource mini6410_dm9k_resource[] = {
  91         [0] = DEFINE_RES_MEM(S3C64XX_PA_XM0CSN1, 2),
  92         [1] = DEFINE_RES_MEM(S3C64XX_PA_XM0CSN1 + 4, 2),
  93         [2] = DEFINE_RES_NAMED(S3C_EINT(7), 1, NULL, IORESOURCE_IRQ \
  94                                         | IORESOURCE_IRQ_HIGHLEVEL),
  95 };
  96
  97 static struct dm9000_plat_data mini6410_dm9k_pdata = {
  98         .flags          = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
  99 };
 100
 101 static struct platform_device mini6410_device_eth = {
 102         .name           = "dm9000",
 103         .id             = -1,
 104         .num_resources  = ARRAY_SIZE(mini6410_dm9k_resource),
 105         .resource       = mini6410_dm9k_resource,
 106         .dev            = {
 107                 .platform_data  = &mini6410_dm9k_pdata,
 108         },
 109 };
 110
 111 static struct mtd_partition mini6410_nand_part[] = {
 112         [0] = {
 113                 .name   = "uboot",
 114                 .size   = SZ_1M,
 115                 .offset = 0,
 116         },
 117         [1] = {
 118                 .name   = "kernel",
 119                 .size   = SZ_2M,
 120                 .offset = SZ_1M,
 121         },
 122         [2] = {
 123                 .name   = "rootfs",
 124                 .size   = MTDPART_SIZ_FULL,
 125                 .offset = SZ_1M + SZ_2M,
 126         },
 127 };
 128
 129 static struct s3c2410_nand_set mini6410_nand_sets[] = {
 130         [0] = {
 131                 .name           = "nand",
 132                 .nr_chips       = 1,
 133                 .nr_partitions  = ARRAY_SIZE(mini6410_nand_part),
 134                 .partitions     = mini6410_nand_part,
 135         },
 136 };
 137
 138 static struct s3c2410_platform_nand mini6410_nand_info = {
 139         .tacls          = 25,
 140         .twrph0         = 55,
 141         .twrph1         = 40,
 142         .nr_sets        = ARRAY_SIZE(mini6410_nand_sets),
 143         .sets           = mini6410_nand_sets,
 144 };
 145
 146 static struct s3c_fb_pd_win mini6410_lcd_type0_fb_win = {
 147         .max_bpp        = 32,
 148         .default_bpp    = 16,
 149         .xres           = 480,
 150         .yres           = 272,
 151 };
 152
 153 static struct fb_videomode mini6410_lcd_type0_timing = {
 154         /* 4.3" 480x272 */
 155         .left_margin    = 3,
 156         .right_margin   = 2,
 157         .upper_margin   = 1,
 158         .lower_margin   = 1,
 159         .hsync_len      = 40,
 160         .vsync_len      = 1,
 161         .xres           = 480,
 162         .yres           = 272,
 163 };
 164
 165 static struct s3c_fb_pd_win mini6410_lcd_type1_fb_win = {
 166         .max_bpp        = 32,
 167         .default_bpp    = 16,
 168         .xres           = 800,
 169         .yres           = 480,
 170 };
 171
 172 static struct fb_videomode mini6410_lcd_type1_timing = {
 173         /* 7.0" 800x480 */
 174         .left_margin    = 8,
 175         .right_margin   = 13,
 176         .upper_margin   = 7,
 177         .lower_margin   = 5,
 178         .hsync_len      = 3,
 179         .vsync_len      = 1,
 180         .xres           = 800,
 181         .yres           = 480,
 182 };
 183
 184 static struct s3c_fb_platdata mini6410_lcd_pdata[] __initdata = {
 185         {
 186                 .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
 187                 .vtiming        = &mini6410_lcd_type0_timing,
 188                 .win[0]         = &mini6410_lcd_type0_fb_win,
 189                 .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
 190                 .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
 191         }, {
 192                 .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
 193                 .vtiming        = &mini6410_lcd_type1_timing,
 194                 .win[0]         = &mini6410_lcd_type1_fb_win,
 195                 .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
 196                 .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
 197         },
 198         { },
 199 };
 200
 201 static void mini6410_lcd_power_set(struct plat_lcd_data *pd,
 202                                    unsigned int power)
 203 {
 204         if (power)
 205                 gpio_direction_output(S3C64XX_GPE(0), 1);
 206         else
 207                 gpio_direction_output(S3C64XX_GPE(0), 0);
 208 }
 209
 210 static struct plat_lcd_data mini6410_lcd_power_data = {
 211         .set_power      = mini6410_lcd_power_set,
 212 };
 213
 214 static struct platform_device mini6410_lcd_powerdev = {
 215         .name                   = "platform-lcd",
 216         .dev.parent             = &s3c_device_fb.dev,
 217         .dev.platform_data      = &mini6410_lcd_power_data,
 218 };
 219
 220 static struct s3c_sdhci_platdata mini6410_hsmmc1_pdata = {
 221         .max_width              = 4,
 222         .cd_type                = S3C_SDHCI_CD_GPIO,
 223         .ext_cd_gpio            = S3C64XX_GPN(10),
 224         .ext_cd_gpio_invert     = true,
 225 };
 226
 227 static struct platform_device *mini6410_devices[] __initdata = {
 228         &mini6410_device_eth,
 229         &s3c_device_hsmmc0,
 230         &s3c_device_hsmmc1,
 231         &s3c_device_ohci,
 232         &s3c_device_nand,
 233         &s3c_device_fb,
 234         &mini6410_lcd_powerdev,
 235         &s3c_device_adc,
 236         &s3c_device_ts,
 237 };
 238
 239 static void __init mini6410_map_io(void)
 240 {
 241         u32 tmp;
 242
 243         s3c64xx_init_io(NULL, 0);
 244         s3c64xx_set_xtal_freq(12000000);
 245         s3c24xx_init_uarts(mini6410_uartcfgs, ARRAY_SIZE(mini6410_uartcfgs));
 246         samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 247
 248         /* set the LCD type */
 249         tmp = __raw_readl(S3C64XX_SPCON);
 250         tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
 251         tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
 252         __raw_writel(tmp, S3C64XX_SPCON);
 253
 254         /* remove the LCD bypass */
 255         tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
 256         tmp &= ~MIFPCON_LCD_BYPASS;
 257         __raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
 258 }
 259
 260 /*
 261  * mini6410_features string
 262  *
 263  * 0-9 LCD configuration
 264  *
 265  */
 266 static char mini6410_features_str[12] __initdata = "0";
 267
 268 static int __init mini6410_features_setup(char *str)
 269 {
 270         if (str)
 271                 strlcpy(mini6410_features_str, str,
 272                         sizeof(mini6410_features_str));
 273         return 1;
 274 }
 275
 276 __setup("mini6410=", mini6410_features_setup);
 277
 278 #define FEATURE_SCREEN (1 << 0)
 279
 280 struct mini6410_features_t {
 281         int done;
 282         int lcd_index;
 283 };
 284
 285 static void mini6410_parse_features(
 286                 struct mini6410_features_t *features,
 287                 const char *features_str)
 288 {
 289         const char *fp = features_str;
 290
 291         features->done = 0;
 292         features->lcd_index = 0;
 293
 294         while (*fp) {
 295                 char f = *fp++;
 296
 297                 switch (f) {
 298                 case '0'...'9': /* tft screen */
 299                         if (features->done & FEATURE_SCREEN) {
 300                                 printk(KERN_INFO "MINI6410: '%c' ignored, "
 301                                         "screen type already set\n", f);
 302                         } else {
 303                                 int li = f - '0';
 304                                 if (li >= ARRAY_SIZE(mini6410_lcd_pdata))
 305                                         printk(KERN_INFO "MINI6410: '%c' out "
 306                                                 "of range LCD mode\n", f);
 307                                 else {
 308                                         features->lcd_index = li;
 309                                 }
 310                         }
 311                         features->done |= FEATURE_SCREEN;
 312                         break;
 313                 }
 314         }
 315 }
 316
 317 static void __init mini6410_machine_init(void)
 318 {
 319         u32 cs1;
 320         struct mini6410_features_t features = { 0 };
 321
 322         printk(KERN_INFO "MINI6410: Option string mini6410=%s\n",
 323                         mini6410_features_str);
 324
 325         /* Parse the feature string */
 326         mini6410_parse_features(&features, mini6410_features_str);
 327
 328         printk(KERN_INFO "MINI6410: selected LCD display is %dx%d\n",
 329                 mini6410_lcd_pdata[features.lcd_index].win[0]->xres,
 330                 mini6410_lcd_pdata[features.lcd_index].win[0]->yres);
 331
 332         s3c_nand_set_platdata(&mini6410_nand_info);
 333         s3c_fb_set_platdata(&mini6410_lcd_pdata[features.lcd_index]);
 334         s3c_sdhci1_set_platdata(&mini6410_hsmmc1_pdata);
 335         s3c24xx_ts_set_platdata(NULL);
 336
 337         /* configure nCS1 width to 16 bits */
 338
 339         cs1 = __raw_readl(S3C64XX_SROM_BW) &
 340                 ~(S3C64XX_SROM_BW__CS_MASK << S3C64XX_SROM_BW__NCS1__SHIFT);
 341         cs1 |= ((1 << S3C64XX_SROM_BW__DATAWIDTH__SHIFT) |
 342                 (1 << S3C64XX_SROM_BW__WAITENABLE__SHIFT) |
 343                 (1 << S3C64XX_SROM_BW__BYTEENABLE__SHIFT)) <<
 344                         S3C64XX_SROM_BW__NCS1__SHIFT;
 345         __raw_writel(cs1, S3C64XX_SROM_BW);
 346
 347         /* set timing for nCS1 suitable for ethernet chip */
 348
 349         __raw_writel((0 << S3C64XX_SROM_BCX__PMC__SHIFT) |
 350                 (6 << S3C64XX_SROM_BCX__TACP__SHIFT) |
 351                 (4 << S3C64XX_SROM_BCX__TCAH__SHIFT) |
 352                 (1 << S3C64XX_SROM_BCX__TCOH__SHIFT) |
 353                 (13 << S3C64XX_SROM_BCX__TACC__SHIFT) |
 354                 (4 << S3C64XX_SROM_BCX__TCOS__SHIFT) |
 355                 (0 << S3C64XX_SROM_BCX__TACS__SHIFT), S3C64XX_SROM_BC1);
 356
 357         gpio_request(S3C64XX_GPF(15), "LCD power");
 358         gpio_request(S3C64XX_GPE(0), "LCD power");
 359
 360         platform_add_devices(mini6410_devices, ARRAY_SIZE(mini6410_devices));
 361 }
 362
 363 MACHINE_START(MINI6410, "MINI6410")
 364         /* Maintainer: Darius Augulis <augulis.darius@gmail.com> */
 365         .atag_offset    = 0x100,
 366         .init_irq       = s3c6410_init_irq,
 367         .map_io         = mini6410_map_io,
 368         .init_machine   = mini6410_machine_init,
 369         .init_late      = s3c64xx_init_late,
 370         .init_time      = samsung_timer_init,
 371         .restart        = s3c64xx_restart,
 372 MACHINE_END