arch/arm/mach-s3c64xx/mach-real6410.c

   1 /* linux/arch/arm/mach-s3c64xx/mach-real6410.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/platform_device.h>
  25 #include <linux/serial_core.h>
  26 #include <linux/serial_s3c.h>
  27 #include <linux/types.h>
  28
  29 #include <asm/mach-types.h>
  30 #include <asm/mach/arch.h>
  31 #include <asm/mach/map.h>
  32
  33 #include <mach/map.h>
  34 #include <mach/regs-gpio.h>
  35 #include <mach/gpio-samsung.h>
  36
  37 #include <plat/adc.h>
  38 #include <plat/cpu.h>
  39 #include <plat/devs.h>
  40 #include <plat/fb.h>
  41 #include <linux/platform_data/mtd-nand-s3c2410.h>
  42 #include <linux/platform_data/touchscreen-s3c2410.h>
  43
  44 #include <video/platform_lcd.h>
  45 #include <video/samsung_fimd.h>
  46 #include <plat/samsung-time.h>
  47
  48 #include "common.h"
  49 #include "regs-modem.h"
  50 #include "regs-srom.h"
  51
  52 #define UCON S3C2410_UCON_DEFAULT
  53 #define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB)
  54 #define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
  55
  56 static struct s3c2410_uartcfg real6410_uartcfgs[] __initdata = {
  57         [0] = {
  58                 .hwport = 0,
  59                 .flags  = 0,
  60                 .ucon   = UCON,
  61                 .ulcon  = ULCON,
  62                 .ufcon  = UFCON,
  63         },
  64         [1] = {
  65                 .hwport = 1,
  66                 .flags  = 0,
  67                 .ucon   = UCON,
  68                 .ulcon  = ULCON,
  69                 .ufcon  = UFCON,
  70         },
  71         [2] = {
  72                 .hwport = 2,
  73                 .flags  = 0,
  74                 .ucon   = UCON,
  75                 .ulcon  = ULCON,
  76                 .ufcon  = UFCON,
  77         },
  78         [3] = {
  79                 .hwport = 3,
  80                 .flags  = 0,
  81                 .ucon   = UCON,
  82                 .ulcon  = ULCON,
  83                 .ufcon  = UFCON,
  84         },
  85 };
  86
  87 /* DM9000AEP 10/100 ethernet controller */
  88
  89 static struct resource real6410_dm9k_resource[] = {
  90         [0] = DEFINE_RES_MEM(S3C64XX_PA_XM0CSN1, 2),
  91         [1] = DEFINE_RES_MEM(S3C64XX_PA_XM0CSN1 + 4, 2),
  92         [2] = DEFINE_RES_NAMED(S3C_EINT(7), 1, NULL, IORESOURCE_IRQ \
  93                                         | IORESOURCE_IRQ_HIGHLEVEL),
  94 };
  95
  96 static struct dm9000_plat_data real6410_dm9k_pdata = {
  97         .flags          = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
  98 };
  99
 100 static struct platform_device real6410_device_eth = {
 101         .name           = "dm9000",
 102         .id             = -1,
 103         .num_resources  = ARRAY_SIZE(real6410_dm9k_resource),
 104         .resource       = real6410_dm9k_resource,
 105         .dev            = {
 106                 .platform_data  = &real6410_dm9k_pdata,
 107         },
 108 };
 109
 110 static struct s3c_fb_pd_win real6410_lcd_type0_fb_win = {
 111         .max_bpp        = 32,
 112         .default_bpp    = 16,
 113         .xres           = 480,
 114         .yres           = 272,
 115 };
 116
 117 static struct fb_videomode real6410_lcd_type0_timing = {
 118         /* 4.3" 480x272 */
 119         .left_margin    = 3,
 120         .right_margin   = 2,
 121         .upper_margin   = 1,
 122         .lower_margin   = 1,
 123         .hsync_len      = 40,
 124         .vsync_len      = 1,
 125 };
 126
 127 static struct s3c_fb_pd_win real6410_lcd_type1_fb_win = {
 128         .max_bpp        = 32,
 129         .default_bpp    = 16,
 130         .xres           = 800,
 131         .yres           = 480,
 132 };
 133
 134 static struct fb_videomode real6410_lcd_type1_timing = {
 135         /* 7.0" 800x480 */
 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
 146 static struct s3c_fb_platdata real6410_lcd_pdata[] __initdata = {
 147         {
 148                 .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
 149                 .vtiming        = &real6410_lcd_type0_timing,
 150                 .win[0]         = &real6410_lcd_type0_fb_win,
 151                 .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
 152                 .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
 153         }, {
 154                 .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
 155                 .vtiming        = &real6410_lcd_type1_timing,
 156                 .win[0]         = &real6410_lcd_type1_fb_win,
 157                 .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
 158                 .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
 159         },
 160         { },
 161 };
 162
 163 static struct mtd_partition real6410_nand_part[] = {
 164         [0] = {
 165                 .name   = "uboot",
 166                 .size   = SZ_1M,
 167                 .offset = 0,
 168         },
 169         [1] = {
 170                 .name   = "kernel",
 171                 .size   = SZ_2M,
 172                 .offset = SZ_1M,
 173         },
 174         [2] = {
 175                 .name   = "rootfs",
 176                 .size   = MTDPART_SIZ_FULL,
 177                 .offset = SZ_1M + SZ_2M,
 178         },
 179 };
 180
 181 static struct s3c2410_nand_set real6410_nand_sets[] = {
 182         [0] = {
 183                 .name           = "nand",
 184                 .nr_chips       = 1,
 185                 .nr_partitions  = ARRAY_SIZE(real6410_nand_part),
 186                 .partitions     = real6410_nand_part,
 187         },
 188 };
 189
 190 static struct s3c2410_platform_nand real6410_nand_info = {
 191         .tacls          = 25,
 192         .twrph0         = 55,
 193         .twrph1         = 40,
 194         .nr_sets        = ARRAY_SIZE(real6410_nand_sets),
 195         .sets           = real6410_nand_sets,
 196 };
 197
 198 static struct platform_device *real6410_devices[] __initdata = {
 199         &real6410_device_eth,
 200         &s3c_device_hsmmc0,
 201         &s3c_device_hsmmc1,
 202         &s3c_device_fb,
 203         &s3c_device_nand,
 204         &s3c_device_adc,
 205         &s3c_device_ts,
 206         &s3c_device_ohci,
 207 };
 208
 209 static void __init real6410_map_io(void)
 210 {
 211         u32 tmp;
 212
 213         s3c64xx_init_io(NULL, 0);
 214         s3c24xx_init_clocks(12000000);
 215         s3c24xx_init_uarts(real6410_uartcfgs, ARRAY_SIZE(real6410_uartcfgs));
 216         samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 217
 218         /* set the LCD type */
 219         tmp = __raw_readl(S3C64XX_SPCON);
 220         tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
 221         tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
 222         __raw_writel(tmp, S3C64XX_SPCON);
 223
 224         /* remove the LCD bypass */
 225         tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
 226         tmp &= ~MIFPCON_LCD_BYPASS;
 227         __raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
 228 }
 229
 230 /*
 231  * real6410_features string
 232  *
 233  * 0-9 LCD configuration
 234  *
 235  */
 236 static char real6410_features_str[12] __initdata = "0";
 237
 238 static int __init real6410_features_setup(char *str)
 239 {
 240         if (str)
 241                 strlcpy(real6410_features_str, str,
 242                         sizeof(real6410_features_str));
 243         return 1;
 244 }
 245
 246 __setup("real6410=", real6410_features_setup);
 247
 248 #define FEATURE_SCREEN (1 << 0)
 249
 250 struct real6410_features_t {
 251         int done;
 252         int lcd_index;
 253 };
 254
 255 static void real6410_parse_features(
 256                 struct real6410_features_t *features,
 257                 const char *features_str)
 258 {
 259         const char *fp = features_str;
 260
 261         features->done = 0;
 262         features->lcd_index = 0;
 263
 264         while (*fp) {
 265                 char f = *fp++;
 266
 267                 switch (f) {
 268                 case '0'...'9': /* tft screen */
 269                         if (features->done & FEATURE_SCREEN) {
 270                                 printk(KERN_INFO "REAL6410: '%c' ignored, "
 271                                         "screen type already set\n", f);
 272                         } else {
 273                                 int li = f - '0';
 274                                 if (li >= ARRAY_SIZE(real6410_lcd_pdata))
 275                                         printk(KERN_INFO "REAL6410: '%c' out "
 276                                                 "of range LCD mode\n", f);
 277                                 else {
 278                                         features->lcd_index = li;
 279                                 }
 280                         }
 281                         features->done |= FEATURE_SCREEN;
 282                         break;
 283                 }
 284         }
 285 }
 286
 287 static void __init real6410_machine_init(void)
 288 {
 289         u32 cs1;
 290         struct real6410_features_t features = { 0 };
 291
 292         printk(KERN_INFO "REAL6410: Option string real6410=%s\n",
 293                         real6410_features_str);
 294
 295         /* Parse the feature string */
 296         real6410_parse_features(&features, real6410_features_str);
 297
 298         printk(KERN_INFO "REAL6410: selected LCD display is %dx%d\n",
 299                 real6410_lcd_pdata[features.lcd_index].win[0]->xres,
 300                 real6410_lcd_pdata[features.lcd_index].win[0]->yres);
 301
 302         s3c_fb_set_platdata(&real6410_lcd_pdata[features.lcd_index]);
 303         s3c_nand_set_platdata(&real6410_nand_info);
 304         s3c24xx_ts_set_platdata(NULL);
 305
 306         /* configure nCS1 width to 16 bits */
 307
 308         cs1 = __raw_readl(S3C64XX_SROM_BW) &
 309                 ~(S3C64XX_SROM_BW__CS_MASK << S3C64XX_SROM_BW__NCS1__SHIFT);
 310         cs1 |= ((1 << S3C64XX_SROM_BW__DATAWIDTH__SHIFT) |
 311                 (1 << S3C64XX_SROM_BW__WAITENABLE__SHIFT) |
 312                 (1 << S3C64XX_SROM_BW__BYTEENABLE__SHIFT)) <<
 313                         S3C64XX_SROM_BW__NCS1__SHIFT;
 314         __raw_writel(cs1, S3C64XX_SROM_BW);
 315
 316         /* set timing for nCS1 suitable for ethernet chip */
 317
 318         __raw_writel((0 << S3C64XX_SROM_BCX__PMC__SHIFT) |
 319                 (6 << S3C64XX_SROM_BCX__TACP__SHIFT) |
 320                 (4 << S3C64XX_SROM_BCX__TCAH__SHIFT) |
 321                 (1 << S3C64XX_SROM_BCX__TCOH__SHIFT) |
 322                 (13 << S3C64XX_SROM_BCX__TACC__SHIFT) |
 323                 (4 << S3C64XX_SROM_BCX__TCOS__SHIFT) |
 324                 (0 << S3C64XX_SROM_BCX__TACS__SHIFT), S3C64XX_SROM_BC1);
 325
 326         gpio_request(S3C64XX_GPF(15), "LCD power");
 327
 328         platform_add_devices(real6410_devices, ARRAY_SIZE(real6410_devices));
 329 }
 330
 331 MACHINE_START(REAL6410, "REAL6410")
 332         /* Maintainer: Darius Augulis <augulis.darius@gmail.com> */
 333         .atag_offset    = 0x100,
 334
 335         .init_irq       = s3c6410_init_irq,
 336         .map_io         = real6410_map_io,
 337         .init_machine   = real6410_machine_init,
 338         .init_late      = s3c64xx_init_late,
 339         .init_time      = samsung_timer_init,
 340         .restart        = s3c64xx_restart,
 341 MACHINE_END