linux/arch/arm/mach-s3c64xx/mach-real6410.c
<<
>>
Prefs
   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-fb.h>
  34#include <mach/regs-gpio.h>
  35#include <mach/regs-modem.h>
  36#include <mach/regs-srom.h>
  37#include <mach/s3c6410.h>
  38
  39#include <plat/adc.h>
  40#include <plat/cpu.h>
  41#include <plat/devs.h>
  42#include <plat/fb.h>
  43#include <plat/nand.h>
  44#include <plat/regs-serial.h>
  45#include <plat/ts.h>
  46
  47#include <video/platform_lcd.h>
  48
  49#define UCON S3C2410_UCON_DEFAULT
  50#define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB)
  51#define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
  52
  53static struct s3c2410_uartcfg real6410_uartcfgs[] __initdata = {
  54        [0] = {
  55                .hwport = 0,
  56                .flags  = 0,
  57                .ucon   = UCON,
  58                .ulcon  = ULCON,
  59                .ufcon  = UFCON,
  60        },
  61        [1] = {
  62                .hwport = 1,
  63                .flags  = 0,
  64                .ucon   = UCON,
  65                .ulcon  = ULCON,
  66                .ufcon  = UFCON,
  67        },
  68        [2] = {
  69                .hwport = 2,
  70                .flags  = 0,
  71                .ucon   = UCON,
  72                .ulcon  = ULCON,
  73                .ufcon  = UFCON,
  74        },
  75        [3] = {
  76                .hwport = 3,
  77                .flags  = 0,
  78                .ucon   = UCON,
  79                .ulcon  = ULCON,
  80                .ufcon  = UFCON,
  81        },
  82};
  83
  84/* DM9000AEP 10/100 ethernet controller */
  85
  86static struct resource real6410_dm9k_resource[] = {
  87        [0] = {
  88                .start  = S3C64XX_PA_XM0CSN1,
  89                .end    = S3C64XX_PA_XM0CSN1 + 1,
  90                .flags  = IORESOURCE_MEM
  91        },
  92        [1] = {
  93                .start  = S3C64XX_PA_XM0CSN1 + 4,
  94                .end    = S3C64XX_PA_XM0CSN1 + 5,
  95                .flags  = IORESOURCE_MEM
  96        },
  97        [2] = {
  98                .start  = S3C_EINT(7),
  99                .end    = S3C_EINT(7),
 100                .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL
 101        }
 102};
 103
 104static struct dm9000_plat_data real6410_dm9k_pdata = {
 105        .flags          = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
 106};
 107
 108static struct platform_device real6410_device_eth = {
 109        .name           = "dm9000",
 110        .id             = -1,
 111        .num_resources  = ARRAY_SIZE(real6410_dm9k_resource),
 112        .resource       = real6410_dm9k_resource,
 113        .dev            = {
 114                .platform_data  = &real6410_dm9k_pdata,
 115        },
 116};
 117
 118static struct s3c_fb_pd_win real6410_fb_win[] = {
 119        {
 120                .win_mode       = {     /* 4.3" 480x272 */
 121                        .left_margin    = 3,
 122                        .right_margin   = 2,
 123                        .upper_margin   = 1,
 124                        .lower_margin   = 1,
 125                        .hsync_len      = 40,
 126                        .vsync_len      = 1,
 127                        .xres           = 480,
 128                        .yres           = 272,
 129                },
 130                .max_bpp        = 32,
 131                .default_bpp    = 16,
 132        }, {
 133                .win_mode       = {     /* 7.0" 800x480 */
 134                        .left_margin    = 8,
 135                        .right_margin   = 13,
 136                        .upper_margin   = 7,
 137                        .lower_margin   = 5,
 138                        .hsync_len      = 3,
 139                        .vsync_len      = 1,
 140                        .xres           = 800,
 141                        .yres           = 480,
 142                },
 143                .max_bpp        = 32,
 144                .default_bpp    = 16,
 145        },
 146};
 147
 148static struct s3c_fb_platdata real6410_lcd_pdata __initdata = {
 149        .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
 150        .win[0]         = &real6410_fb_win[0],
 151        .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
 152        .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
 153};
 154
 155static struct mtd_partition real6410_nand_part[] = {
 156        [0] = {
 157                .name   = "uboot",
 158                .size   = SZ_1M,
 159                .offset = 0,
 160        },
 161        [1] = {
 162                .name   = "kernel",
 163                .size   = SZ_2M,
 164                .offset = SZ_1M,
 165        },
 166        [2] = {
 167                .name   = "rootfs",
 168                .size   = MTDPART_SIZ_FULL,
 169                .offset = SZ_1M + SZ_2M,
 170        },
 171};
 172
 173static struct s3c2410_nand_set real6410_nand_sets[] = {
 174        [0] = {
 175                .name           = "nand",
 176                .nr_chips       = 1,
 177                .nr_partitions  = ARRAY_SIZE(real6410_nand_part),
 178                .partitions     = real6410_nand_part,
 179        },
 180};
 181
 182static struct s3c2410_platform_nand real6410_nand_info = {
 183        .tacls          = 25,
 184        .twrph0         = 55,
 185        .twrph1         = 40,
 186        .nr_sets        = ARRAY_SIZE(real6410_nand_sets),
 187        .sets           = real6410_nand_sets,
 188};
 189
 190static struct platform_device *real6410_devices[] __initdata = {
 191        &real6410_device_eth,
 192        &s3c_device_hsmmc0,
 193        &s3c_device_hsmmc1,
 194        &s3c_device_fb,
 195        &s3c_device_nand,
 196        &s3c_device_adc,
 197        &s3c_device_ts,
 198        &s3c_device_ohci,
 199};
 200
 201static struct s3c2410_ts_mach_info s3c_ts_platform __initdata = {
 202        .delay                  = 10000,
 203        .presc                  = 49,
 204        .oversampling_shift     = 2,
 205};
 206
 207static void __init real6410_map_io(void)
 208{
 209        u32 tmp;
 210
 211        s3c64xx_init_io(NULL, 0);
 212        s3c24xx_init_clocks(12000000);
 213        s3c24xx_init_uarts(real6410_uartcfgs, ARRAY_SIZE(real6410_uartcfgs));
 214
 215        /* set the LCD type */
 216        tmp = __raw_readl(S3C64XX_SPCON);
 217        tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
 218        tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
 219        __raw_writel(tmp, S3C64XX_SPCON);
 220
 221        /* remove the LCD bypass */
 222        tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
 223        tmp &= ~MIFPCON_LCD_BYPASS;
 224        __raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
 225}
 226
 227/*
 228 * real6410_features string
 229 *
 230 * 0-9 LCD configuration
 231 *
 232 */
 233static char real6410_features_str[12] __initdata = "0";
 234
 235static int __init real6410_features_setup(char *str)
 236{
 237        if (str)
 238                strlcpy(real6410_features_str, str,
 239                        sizeof(real6410_features_str));
 240        return 1;
 241}
 242
 243__setup("real6410=", real6410_features_setup);
 244
 245#define FEATURE_SCREEN (1 << 0)
 246
 247struct real6410_features_t {
 248        int done;
 249        int lcd_index;
 250};
 251
 252static void real6410_parse_features(
 253                struct real6410_features_t *features,
 254                const char *features_str)
 255{
 256        const char *fp = features_str;
 257
 258        features->done = 0;
 259        features->lcd_index = 0;
 260
 261        while (*fp) {
 262                char f = *fp++;
 263
 264                switch (f) {
 265                case '0'...'9': /* tft screen */
 266                        if (features->done & FEATURE_SCREEN) {
 267                                printk(KERN_INFO "REAL6410: '%c' ignored, "
 268                                        "screen type already set\n", f);
 269                        } else {
 270                                int li = f - '0';
 271                                if (li >= ARRAY_SIZE(real6410_fb_win))
 272                                        printk(KERN_INFO "REAL6410: '%c' out "
 273                                                "of range LCD mode\n", f);
 274                                else {
 275                                        features->lcd_index = li;
 276                                }
 277                        }
 278                        features->done |= FEATURE_SCREEN;
 279                        break;
 280                }
 281        }
 282}
 283
 284static void __init real6410_machine_init(void)
 285{
 286        u32 cs1;
 287        struct real6410_features_t features = { 0 };
 288
 289        printk(KERN_INFO "REAL6410: Option string real6410=%s\n",
 290                        real6410_features_str);
 291
 292        /* Parse the feature string */
 293        real6410_parse_features(&features, real6410_features_str);
 294
 295        real6410_lcd_pdata.win[0] = &real6410_fb_win[features.lcd_index];
 296
 297        printk(KERN_INFO "REAL6410: selected LCD display is %dx%d\n",
 298                real6410_lcd_pdata.win[0]->win_mode.xres,
 299                real6410_lcd_pdata.win[0]->win_mode.yres);
 300
 301        s3c_fb_set_platdata(&real6410_lcd_pdata);
 302        s3c_nand_set_platdata(&real6410_nand_info);
 303        s3c24xx_ts_set_platdata(&s3c_ts_platform);
 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        .boot_params    = S3C64XX_PA_SDRAM + 0x100,
 333
 334        .init_irq       = s3c6410_init_irq,
 335        .map_io         = real6410_map_io,
 336        .init_machine   = real6410_machine_init,
 337        .timer          = &s3c24xx_timer,
 338MACHINE_END
 339