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/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
  35#include <plat/adc.h>
  36#include <plat/cpu.h>
  37#include <plat/devs.h>
  38#include <plat/fb.h>
  39#include <linux/platform_data/mtd-nand-s3c2410.h>
  40#include <plat/regs-serial.h>
  41#include <linux/platform_data/touchscreen-s3c2410.h>
  42
  43#include <video/platform_lcd.h>
  44#include <video/samsung_fimd.h>
  45#include <plat/samsung-time.h>
  46
  47#include "common.h"
  48#include "regs-modem.h"
  49#include "regs-srom.h"
  50
  51#define UCON S3C2410_UCON_DEFAULT
  52#define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB)
  53#define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
  54
  55static struct s3c2410_uartcfg real6410_uartcfgs[] __initdata = {
  56        [0] = {
  57                .hwport = 0,
  58                .flags  = 0,
  59                .ucon   = UCON,
  60                .ulcon  = ULCON,
  61                .ufcon  = UFCON,
  62        },
  63        [1] = {
  64                .hwport = 1,
  65                .flags  = 0,
  66                .ucon   = UCON,
  67                .ulcon  = ULCON,
  68                .ufcon  = UFCON,
  69        },
  70        [2] = {
  71                .hwport = 2,
  72                .flags  = 0,
  73                .ucon   = UCON,
  74                .ulcon  = ULCON,
  75                .ufcon  = UFCON,
  76        },
  77        [3] = {
  78                .hwport = 3,
  79                .flags  = 0,
  80                .ucon   = UCON,
  81                .ulcon  = ULCON,
  82                .ufcon  = UFCON,
  83        },
  84};
  85
  86/* DM9000AEP 10/100 ethernet controller */
  87
  88static struct resource real6410_dm9k_resource[] = {
  89        [0] = DEFINE_RES_MEM(S3C64XX_PA_XM0CSN1, 2),
  90        [1] = DEFINE_RES_MEM(S3C64XX_PA_XM0CSN1 + 4, 2),
  91        [2] = DEFINE_RES_NAMED(S3C_EINT(7), 1, NULL, IORESOURCE_IRQ \
  92                                        | IORESOURCE_IRQ_HIGHLEVEL),
  93};
  94
  95static struct dm9000_plat_data real6410_dm9k_pdata = {
  96        .flags          = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
  97};
  98
  99static struct platform_device real6410_device_eth = {
 100        .name           = "dm9000",
 101        .id             = -1,
 102        .num_resources  = ARRAY_SIZE(real6410_dm9k_resource),
 103        .resource       = real6410_dm9k_resource,
 104        .dev            = {
 105                .platform_data  = &real6410_dm9k_pdata,
 106        },
 107};
 108
 109static struct s3c_fb_pd_win real6410_lcd_type0_fb_win = {
 110        .max_bpp        = 32,
 111        .default_bpp    = 16,
 112        .xres           = 480,
 113        .yres           = 272,
 114};
 115
 116static struct fb_videomode real6410_lcd_type0_timing = {
 117        /* 4.3" 480x272 */
 118        .left_margin    = 3,
 119        .right_margin   = 2,
 120        .upper_margin   = 1,
 121        .lower_margin   = 1,
 122        .hsync_len      = 40,
 123        .vsync_len      = 1,
 124};
 125
 126static struct s3c_fb_pd_win real6410_lcd_type1_fb_win = {
 127        .max_bpp        = 32,
 128        .default_bpp    = 16,
 129        .xres           = 800,
 130        .yres           = 480,
 131};
 132
 133static struct fb_videomode real6410_lcd_type1_timing = {
 134        /* 7.0" 800x480 */
 135        .left_margin    = 8,
 136        .right_margin   = 13,
 137        .upper_margin   = 7,
 138        .lower_margin   = 5,
 139        .hsync_len      = 3,
 140        .vsync_len      = 1,
 141        .xres           = 800,
 142        .yres           = 480,
 143};
 144
 145static struct s3c_fb_platdata real6410_lcd_pdata[] __initdata = {
 146        {
 147                .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
 148                .vtiming        = &real6410_lcd_type0_timing,
 149                .win[0]         = &real6410_lcd_type0_fb_win,
 150                .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
 151                .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
 152        }, {
 153                .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
 154                .vtiming        = &real6410_lcd_type1_timing,
 155                .win[0]         = &real6410_lcd_type1_fb_win,
 156                .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
 157                .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
 158        },
 159        { },
 160};
 161
 162static struct mtd_partition real6410_nand_part[] = {
 163        [0] = {
 164                .name   = "uboot",
 165                .size   = SZ_1M,
 166                .offset = 0,
 167        },
 168        [1] = {
 169                .name   = "kernel",
 170                .size   = SZ_2M,
 171                .offset = SZ_1M,
 172        },
 173        [2] = {
 174                .name   = "rootfs",
 175                .size   = MTDPART_SIZ_FULL,
 176                .offset = SZ_1M + SZ_2M,
 177        },
 178};
 179
 180static struct s3c2410_nand_set real6410_nand_sets[] = {
 181        [0] = {
 182                .name           = "nand",
 183                .nr_chips       = 1,
 184                .nr_partitions  = ARRAY_SIZE(real6410_nand_part),
 185                .partitions     = real6410_nand_part,
 186        },
 187};
 188
 189static struct s3c2410_platform_nand real6410_nand_info = {
 190        .tacls          = 25,
 191        .twrph0         = 55,
 192        .twrph1         = 40,
 193        .nr_sets        = ARRAY_SIZE(real6410_nand_sets),
 194        .sets           = real6410_nand_sets,
 195};
 196
 197static struct platform_device *real6410_devices[] __initdata = {
 198        &real6410_device_eth,
 199        &s3c_device_hsmmc0,
 200        &s3c_device_hsmmc1,
 201        &s3c_device_fb,
 202        &s3c_device_nand,
 203        &s3c_device_adc,
 204        &s3c_device_ts,
 205        &s3c_device_ohci,
 206};
 207
 208static void __init real6410_map_io(void)
 209{
 210        u32 tmp;
 211
 212        s3c64xx_init_io(NULL, 0);
 213        s3c24xx_init_clocks(12000000);
 214        s3c24xx_init_uarts(real6410_uartcfgs, ARRAY_SIZE(real6410_uartcfgs));
 215        samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 216
 217        /* set the LCD type */
 218        tmp = __raw_readl(S3C64XX_SPCON);
 219        tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
 220        tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
 221        __raw_writel(tmp, S3C64XX_SPCON);
 222
 223        /* remove the LCD bypass */
 224        tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
 225        tmp &= ~MIFPCON_LCD_BYPASS;
 226        __raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
 227}
 228
 229/*
 230 * real6410_features string
 231 *
 232 * 0-9 LCD configuration
 233 *
 234 */
 235static char real6410_features_str[12] __initdata = "0";
 236
 237static int __init real6410_features_setup(char *str)
 238{
 239        if (str)
 240                strlcpy(real6410_features_str, str,
 241                        sizeof(real6410_features_str));
 242        return 1;
 243}
 244
 245__setup("real6410=", real6410_features_setup);
 246
 247#define FEATURE_SCREEN (1 << 0)
 248
 249struct real6410_features_t {
 250        int done;
 251        int lcd_index;
 252};
 253
 254static void real6410_parse_features(
 255                struct real6410_features_t *features,
 256                const char *features_str)
 257{
 258        const char *fp = features_str;
 259
 260        features->done = 0;
 261        features->lcd_index = 0;
 262
 263        while (*fp) {
 264                char f = *fp++;
 265
 266                switch (f) {
 267                case '0'...'9': /* tft screen */
 268                        if (features->done & FEATURE_SCREEN) {
 269                                printk(KERN_INFO "REAL6410: '%c' ignored, "
 270                                        "screen type already set\n", f);
 271                        } else {
 272                                int li = f - '0';
 273                                if (li >= ARRAY_SIZE(real6410_lcd_pdata))
 274                                        printk(KERN_INFO "REAL6410: '%c' out "
 275                                                "of range LCD mode\n", f);
 276                                else {
 277                                        features->lcd_index = li;
 278                                }
 279                        }
 280                        features->done |= FEATURE_SCREEN;
 281                        break;
 282                }
 283        }
 284}
 285
 286static void __init real6410_machine_init(void)
 287{
 288        u32 cs1;
 289        struct real6410_features_t features = { 0 };
 290
 291        printk(KERN_INFO "REAL6410: Option string real6410=%s\n",
 292                        real6410_features_str);
 293
 294        /* Parse the feature string */
 295        real6410_parse_features(&features, real6410_features_str);
 296
 297        printk(KERN_INFO "REAL6410: selected LCD display is %dx%d\n",
 298                real6410_lcd_pdata[features.lcd_index].win[0]->xres,
 299                real6410_lcd_pdata[features.lcd_index].win[0]->yres);
 300
 301        s3c_fb_set_platdata(&real6410_lcd_pdata[features.lcd_index]);
 302        s3c_nand_set_platdata(&real6410_nand_info);
 303        s3c24xx_ts_set_platdata(NULL);
 304
 305        /* configure nCS1 width to 16 bits */
 306
 307        cs1 = __raw_readl(S3C64XX_SROM_BW) &
 308                ~(S3C64XX_SROM_BW__CS_MASK << S3C64XX_SROM_BW__NCS1__SHIFT);
 309        cs1 |= ((1 << S3C64XX_SROM_BW__DATAWIDTH__SHIFT) |
 310                (1 << S3C64XX_SROM_BW__WAITENABLE__SHIFT) |
 311                (1 << S3C64XX_SROM_BW__BYTEENABLE__SHIFT)) <<
 312                        S3C64XX_SROM_BW__NCS1__SHIFT;
 313        __raw_writel(cs1, S3C64XX_SROM_BW);
 314
 315        /* set timing for nCS1 suitable for ethernet chip */
 316
 317        __raw_writel((0 << S3C64XX_SROM_BCX__PMC__SHIFT) |
 318                (6 << S3C64XX_SROM_BCX__TACP__SHIFT) |
 319                (4 << S3C64XX_SROM_BCX__TCAH__SHIFT) |
 320                (1 << S3C64XX_SROM_BCX__TCOH__SHIFT) |
 321                (13 << S3C64XX_SROM_BCX__TACC__SHIFT) |
 322                (4 << S3C64XX_SROM_BCX__TCOS__SHIFT) |
 323                (0 << S3C64XX_SROM_BCX__TACS__SHIFT), S3C64XX_SROM_BC1);
 324
 325        gpio_request(S3C64XX_GPF(15), "LCD power");
 326
 327        platform_add_devices(real6410_devices, ARRAY_SIZE(real6410_devices));
 328}
 329
 330MACHINE_START(REAL6410, "REAL6410")
 331        /* Maintainer: Darius Augulis <augulis.darius@gmail.com> */
 332        .atag_offset    = 0x100,
 333
 334        .init_irq       = s3c6410_init_irq,
 335        .map_io         = real6410_map_io,
 336        .init_machine   = real6410_machine_init,
 337        .init_late      = s3c64xx_init_late,
 338        .init_time      = samsung_timer_init,
 339        .restart        = s3c64xx_restart,
 340MACHINE_END
 341