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 #include <mach/irqs.h>
  37
  38 #include <plat/adc.h>
  39 #include <plat/cpu.h>
  40 #include <plat/devs.h>
  41 #include <plat/fb.h>
  42 #include <linux/platform_data/mtd-nand-s3c2410.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 real6410_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 real6410_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 real6410_dm9k_pdata = {
  98         .flags          = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
  99 };
 100
 101 static struct platform_device real6410_device_eth = {
 102         .name           = "dm9000",
 103         .id             = -1,
 104         .num_resources  = ARRAY_SIZE(real6410_dm9k_resource),
 105         .resource       = real6410_dm9k_resource,
 106         .dev            = {
 107                 .platform_data  = &real6410_dm9k_pdata,
 108         },
 109 };
 110
 111 static struct s3c_fb_pd_win real6410_lcd_type0_fb_win = {
 112         .max_bpp        = 32,
 113         .default_bpp    = 16,
 114         .xres           = 480,
 115         .yres           = 272,
 116 };
 117
 118 static struct fb_videomode real6410_lcd_type0_timing = {
 119         /* 4.3" 480x272 */
 120         .left_margin    = 3,
 121         .right_margin   = 2,
 122         .upper_margin   = 1,
 123         .lower_margin   = 1,
 124         .hsync_len      = 40,
 125         .vsync_len      = 1,
 126 };
 127
 128 static struct s3c_fb_pd_win real6410_lcd_type1_fb_win = {
 129         .max_bpp        = 32,
 130         .default_bpp    = 16,
 131         .xres           = 800,
 132         .yres           = 480,
 133 };
 134
 135 static struct fb_videomode real6410_lcd_type1_timing = {
 136         /* 7.0" 800x480 */
 137         .left_margin    = 8,
 138         .right_margin   = 13,
 139         .upper_margin   = 7,
 140         .lower_margin   = 5,
 141         .hsync_len      = 3,
 142         .vsync_len      = 1,
 143         .xres           = 800,
 144         .yres           = 480,
 145 };
 146
 147 static struct s3c_fb_platdata real6410_lcd_pdata[] __initdata = {
 148         {
 149                 .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
 150                 .vtiming        = &real6410_lcd_type0_timing,
 151                 .win[0]         = &real6410_lcd_type0_fb_win,
 152                 .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
 153                 .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
 154         }, {
 155                 .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
 156                 .vtiming        = &real6410_lcd_type1_timing,
 157                 .win[0]         = &real6410_lcd_type1_fb_win,
 158                 .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
 159                 .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
 160         },
 161         { },
 162 };
 163
 164 static struct mtd_partition real6410_nand_part[] = {
 165         [0] = {
 166                 .name   = "uboot",
 167                 .size   = SZ_1M,
 168                 .offset = 0,
 169         },
 170         [1] = {
 171                 .name   = "kernel",
 172                 .size   = SZ_2M,
 173                 .offset = SZ_1M,
 174         },
 175         [2] = {
 176                 .name   = "rootfs",
 177                 .size   = MTDPART_SIZ_FULL,
 178                 .offset = SZ_1M + SZ_2M,
 179         },
 180 };
 181
 182 static struct s3c2410_nand_set real6410_nand_sets[] = {
 183         [0] = {
 184                 .name           = "nand",
 185                 .nr_chips       = 1,
 186                 .nr_partitions  = ARRAY_SIZE(real6410_nand_part),
 187                 .partitions     = real6410_nand_part,
 188         },
 189 };
 190
 191 static struct s3c2410_platform_nand real6410_nand_info = {
 192         .tacls          = 25,
 193         .twrph0         = 55,
 194         .twrph1         = 40,
 195         .nr_sets        = ARRAY_SIZE(real6410_nand_sets),
 196         .sets           = real6410_nand_sets,
 197         .ecc_mode       = NAND_ECC_SOFT,
 198 };
 199
 200 static struct platform_device *real6410_devices[] __initdata = {
 201         &real6410_device_eth,
 202         &s3c_device_hsmmc0,
 203         &s3c_device_hsmmc1,
 204         &s3c_device_fb,
 205         &s3c_device_nand,
 206         &s3c_device_adc,
 207         &s3c_device_ohci,
 208 };
 209
 210 static void __init real6410_map_io(void)
 211 {
 212         u32 tmp;
 213
 214         s3c64xx_init_io(NULL, 0);
 215         s3c24xx_init_clocks(12000000);
 216         s3c24xx_init_uarts(real6410_uartcfgs, ARRAY_SIZE(real6410_uartcfgs));
 217         samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 218
 219         /* set the LCD type */
 220         tmp = __raw_readl(S3C64XX_SPCON);
 221         tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
 222         tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
 223         __raw_writel(tmp, S3C64XX_SPCON);
 224
 225         /* remove the LCD bypass */
 226         tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
 227         tmp &= ~MIFPCON_LCD_BYPASS;
 228         __raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
 229 }
 230
 231 /*
 232  * real6410_features string
 233  *
 234  * 0-9 LCD configuration
 235  *
 236  */
 237 static char real6410_features_str[12] __initdata = "0";
 238
 239 static int __init real6410_features_setup(char *str)
 240 {
 241         if (str)
 242                 strlcpy(real6410_features_str, str,
 243                         sizeof(real6410_features_str));
 244         return 1;
 245 }
 246
 247 __setup("real6410=", real6410_features_setup);
 248
 249 #define FEATURE_SCREEN (1 << 0)
 250
 251 struct real6410_features_t {
 252         int done;
 253         int lcd_index;
 254 };
 255
 256 static void real6410_parse_features(
 257                 struct real6410_features_t *features,
 258                 const char *features_str)
 259 {
 260         const char *fp = features_str;
 261
 262         features->done = 0;
 263         features->lcd_index = 0;
 264
 265         while (*fp) {
 266                 char f = *fp++;
 267
 268                 switch (f) {
 269                 case '0'...'9': /* tft screen */
 270                         if (features->done & FEATURE_SCREEN) {
 271                                 printk(KERN_INFO "REAL6410: '%c' ignored, "
 272                                         "screen type already set\n", f);
 273                         } else {
 274                                 int li = f - '0';
 275                                 if (li >= ARRAY_SIZE(real6410_lcd_pdata))
 276                                         printk(KERN_INFO "REAL6410: '%c' out "
 277                                                 "of range LCD mode\n", f);
 278                                 else {
 279                                         features->lcd_index = li;
 280                                 }
 281                         }
 282                         features->done |= FEATURE_SCREEN;
 283                         break;
 284                 }
 285         }
 286 }
 287
 288 static void __init real6410_machine_init(void)
 289 {
 290         u32 cs1;
 291         struct real6410_features_t features = { 0 };
 292
 293         printk(KERN_INFO "REAL6410: Option string real6410=%s\n",
 294                         real6410_features_str);
 295
 296         /* Parse the feature string */
 297         real6410_parse_features(&features, real6410_features_str);
 298
 299         printk(KERN_INFO "REAL6410: selected LCD display is %dx%d\n",
 300                 real6410_lcd_pdata[features.lcd_index].win[0]->xres,
 301                 real6410_lcd_pdata[features.lcd_index].win[0]->yres);
 302
 303         s3c_fb_set_platdata(&real6410_lcd_pdata[features.lcd_index]);
 304         s3c_nand_set_platdata(&real6410_nand_info);
 305         s3c64xx_ts_set_platdata(NULL);
 306
 307         /* configure nCS1 width to 16 bits */
 308
 309         cs1 = __raw_readl(S3C64XX_SROM_BW) &
 310                 ~(S3C64XX_SROM_BW__CS_MASK << S3C64XX_SROM_BW__NCS1__SHIFT);
 311         cs1 |= ((1 << S3C64XX_SROM_BW__DATAWIDTH__SHIFT) |
 312                 (1 << S3C64XX_SROM_BW__WAITENABLE__SHIFT) |
 313                 (1 << S3C64XX_SROM_BW__BYTEENABLE__SHIFT)) <<
 314                         S3C64XX_SROM_BW__NCS1__SHIFT;
 315         __raw_writel(cs1, S3C64XX_SROM_BW);
 316
 317         /* set timing for nCS1 suitable for ethernet chip */
 318
 319         __raw_writel((0 << S3C64XX_SROM_BCX__PMC__SHIFT) |
 320                 (6 << S3C64XX_SROM_BCX__TACP__SHIFT) |
 321                 (4 << S3C64XX_SROM_BCX__TCAH__SHIFT) |
 322                 (1 << S3C64XX_SROM_BCX__TCOH__SHIFT) |
 323                 (13 << S3C64XX_SROM_BCX__TACC__SHIFT) |
 324                 (4 << S3C64XX_SROM_BCX__TCOS__SHIFT) |
 325                 (0 << S3C64XX_SROM_BCX__TACS__SHIFT), S3C64XX_SROM_BC1);
 326
 327         gpio_request(S3C64XX_GPF(15), "LCD power");
 328
 329         platform_add_devices(real6410_devices, ARRAY_SIZE(real6410_devices));
 330 }
 331
 332 MACHINE_START(REAL6410, "REAL6410")
 333         /* Maintainer: Darius Augulis <augulis.darius@gmail.com> */
 334         .atag_offset    = 0x100,
 335         .nr_irqs        = S3C64XX_NR_IRQS,
 336         .init_irq       = s3c6410_init_irq,
 337         .map_io         = real6410_map_io,
 338         .init_machine   = real6410_machine_init,
 339         .init_time      = samsung_timer_init,
 340         .restart        = s3c64xx_restart,
 341 MACHINE_END