linux/arch/arm/mach-s3c64xx/mach-real6410.c
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   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
  57static 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
  90static 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
  97static struct dm9000_plat_data real6410_dm9k_pdata = {
  98        .flags          = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
  99};
 100
 101static 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
 111static 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
 118static 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
 128static 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
 135static 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
 147static 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
 164static 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
 182static 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
 191static 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
 200static 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
 210static 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 */
 237static char real6410_features_str[12] __initdata = "0";
 238
 239static 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
 251struct real6410_features_t {
 252        int done;
 253        int lcd_index;
 254};
 255
 256static 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
 288static 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
 332MACHINE_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,
 341MACHINE_END
 342