linux/arch/arm/mach-s3c64xx/mach-mini6410.c
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   1/* linux/arch/arm/mach-s3c64xx/mach-mini6410.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/serial_core.h>
  25#include <linux/serial_s3c.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#include <mach/gpio-samsung.h>
  35
  36#include <plat/adc.h>
  37#include <plat/cpu.h>
  38#include <plat/devs.h>
  39#include <plat/fb.h>
  40#include <linux/platform_data/mtd-nand-s3c2410.h>
  41#include <linux/platform_data/mmc-sdhci-s3c.h>
  42#include <plat/sdhci.h>
  43#include <linux/platform_data/touchscreen-s3c2410.h>
  44#include <mach/irqs.h>
  45
  46#include <video/platform_lcd.h>
  47#include <video/samsung_fimd.h>
  48#include <plat/samsung-time.h>
  49
  50#include "common.h"
  51#include "regs-modem.h"
  52#include "regs-srom.h"
  53
  54#define UCON S3C2410_UCON_DEFAULT
  55#define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB)
  56#define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
  57
  58static struct s3c2410_uartcfg mini6410_uartcfgs[] __initdata = {
  59        [0] = {
  60                .hwport = 0,
  61                .flags  = 0,
  62                .ucon   = UCON,
  63                .ulcon  = ULCON,
  64                .ufcon  = UFCON,
  65        },
  66        [1] = {
  67                .hwport = 1,
  68                .flags  = 0,
  69                .ucon   = UCON,
  70                .ulcon  = ULCON,
  71                .ufcon  = UFCON,
  72        },
  73        [2] = {
  74                .hwport = 2,
  75                .flags  = 0,
  76                .ucon   = UCON,
  77                .ulcon  = ULCON,
  78                .ufcon  = UFCON,
  79        },
  80        [3] = {
  81                .hwport = 3,
  82                .flags  = 0,
  83                .ucon   = UCON,
  84                .ulcon  = ULCON,
  85                .ufcon  = UFCON,
  86        },
  87};
  88
  89/* DM9000AEP 10/100 ethernet controller */
  90
  91static struct resource mini6410_dm9k_resource[] = {
  92        [0] = DEFINE_RES_MEM(S3C64XX_PA_XM0CSN1, 2),
  93        [1] = DEFINE_RES_MEM(S3C64XX_PA_XM0CSN1 + 4, 2),
  94        [2] = DEFINE_RES_NAMED(S3C_EINT(7), 1, NULL, IORESOURCE_IRQ \
  95                                        | IORESOURCE_IRQ_HIGHLEVEL),
  96};
  97
  98static struct dm9000_plat_data mini6410_dm9k_pdata = {
  99        .flags          = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
 100};
 101
 102static struct platform_device mini6410_device_eth = {
 103        .name           = "dm9000",
 104        .id             = -1,
 105        .num_resources  = ARRAY_SIZE(mini6410_dm9k_resource),
 106        .resource       = mini6410_dm9k_resource,
 107        .dev            = {
 108                .platform_data  = &mini6410_dm9k_pdata,
 109        },
 110};
 111
 112static struct mtd_partition mini6410_nand_part[] = {
 113        [0] = {
 114                .name   = "uboot",
 115                .size   = SZ_1M,
 116                .offset = 0,
 117        },
 118        [1] = {
 119                .name   = "kernel",
 120                .size   = SZ_2M,
 121                .offset = SZ_1M,
 122        },
 123        [2] = {
 124                .name   = "rootfs",
 125                .size   = MTDPART_SIZ_FULL,
 126                .offset = SZ_1M + SZ_2M,
 127        },
 128};
 129
 130static struct s3c2410_nand_set mini6410_nand_sets[] = {
 131        [0] = {
 132                .name           = "nand",
 133                .nr_chips       = 1,
 134                .nr_partitions  = ARRAY_SIZE(mini6410_nand_part),
 135                .partitions     = mini6410_nand_part,
 136        },
 137};
 138
 139static struct s3c2410_platform_nand mini6410_nand_info = {
 140        .tacls          = 25,
 141        .twrph0         = 55,
 142        .twrph1         = 40,
 143        .nr_sets        = ARRAY_SIZE(mini6410_nand_sets),
 144        .sets           = mini6410_nand_sets,
 145};
 146
 147static struct s3c_fb_pd_win mini6410_lcd_type0_fb_win = {
 148        .max_bpp        = 32,
 149        .default_bpp    = 16,
 150        .xres           = 480,
 151        .yres           = 272,
 152};
 153
 154static struct fb_videomode mini6410_lcd_type0_timing = {
 155        /* 4.3" 480x272 */
 156        .left_margin    = 3,
 157        .right_margin   = 2,
 158        .upper_margin   = 1,
 159        .lower_margin   = 1,
 160        .hsync_len      = 40,
 161        .vsync_len      = 1,
 162        .xres           = 480,
 163        .yres           = 272,
 164};
 165
 166static struct s3c_fb_pd_win mini6410_lcd_type1_fb_win = {
 167        .max_bpp        = 32,
 168        .default_bpp    = 16,
 169        .xres           = 800,
 170        .yres           = 480,
 171};
 172
 173static struct fb_videomode mini6410_lcd_type1_timing = {
 174        /* 7.0" 800x480 */
 175        .left_margin    = 8,
 176        .right_margin   = 13,
 177        .upper_margin   = 7,
 178        .lower_margin   = 5,
 179        .hsync_len      = 3,
 180        .vsync_len      = 1,
 181        .xres           = 800,
 182        .yres           = 480,
 183};
 184
 185static struct s3c_fb_platdata mini6410_lcd_pdata[] __initdata = {
 186        {
 187                .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
 188                .vtiming        = &mini6410_lcd_type0_timing,
 189                .win[0]         = &mini6410_lcd_type0_fb_win,
 190                .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
 191                .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
 192        }, {
 193                .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
 194                .vtiming        = &mini6410_lcd_type1_timing,
 195                .win[0]         = &mini6410_lcd_type1_fb_win,
 196                .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
 197                .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
 198        },
 199        { },
 200};
 201
 202static void mini6410_lcd_power_set(struct plat_lcd_data *pd,
 203                                   unsigned int power)
 204{
 205        if (power)
 206                gpio_direction_output(S3C64XX_GPE(0), 1);
 207        else
 208                gpio_direction_output(S3C64XX_GPE(0), 0);
 209}
 210
 211static struct plat_lcd_data mini6410_lcd_power_data = {
 212        .set_power      = mini6410_lcd_power_set,
 213};
 214
 215static struct platform_device mini6410_lcd_powerdev = {
 216        .name                   = "platform-lcd",
 217        .dev.parent             = &s3c_device_fb.dev,
 218        .dev.platform_data      = &mini6410_lcd_power_data,
 219};
 220
 221static struct s3c_sdhci_platdata mini6410_hsmmc1_pdata = {
 222        .max_width              = 4,
 223        .cd_type                = S3C_SDHCI_CD_GPIO,
 224        .ext_cd_gpio            = S3C64XX_GPN(10),
 225        .ext_cd_gpio_invert     = true,
 226};
 227
 228static struct platform_device *mini6410_devices[] __initdata = {
 229        &mini6410_device_eth,
 230        &s3c_device_hsmmc0,
 231        &s3c_device_hsmmc1,
 232        &s3c_device_ohci,
 233        &s3c_device_nand,
 234        &s3c_device_fb,
 235        &mini6410_lcd_powerdev,
 236        &s3c_device_adc,
 237};
 238
 239static void __init mini6410_map_io(void)
 240{
 241        u32 tmp;
 242
 243        s3c64xx_init_io(NULL, 0);
 244        s3c64xx_set_xtal_freq(12000000);
 245        s3c24xx_init_uarts(mini6410_uartcfgs, ARRAY_SIZE(mini6410_uartcfgs));
 246        samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 247
 248        /* set the LCD type */
 249        tmp = __raw_readl(S3C64XX_SPCON);
 250        tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
 251        tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
 252        __raw_writel(tmp, S3C64XX_SPCON);
 253
 254        /* remove the LCD bypass */
 255        tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
 256        tmp &= ~MIFPCON_LCD_BYPASS;
 257        __raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
 258}
 259
 260/*
 261 * mini6410_features string
 262 *
 263 * 0-9 LCD configuration
 264 *
 265 */
 266static char mini6410_features_str[12] __initdata = "0";
 267
 268static int __init mini6410_features_setup(char *str)
 269{
 270        if (str)
 271                strlcpy(mini6410_features_str, str,
 272                        sizeof(mini6410_features_str));
 273        return 1;
 274}
 275
 276__setup("mini6410=", mini6410_features_setup);
 277
 278#define FEATURE_SCREEN (1 << 0)
 279
 280struct mini6410_features_t {
 281        int done;
 282        int lcd_index;
 283};
 284
 285static void mini6410_parse_features(
 286                struct mini6410_features_t *features,
 287                const char *features_str)
 288{
 289        const char *fp = features_str;
 290
 291        features->done = 0;
 292        features->lcd_index = 0;
 293
 294        while (*fp) {
 295                char f = *fp++;
 296
 297                switch (f) {
 298                case '0'...'9': /* tft screen */
 299                        if (features->done & FEATURE_SCREEN) {
 300                                printk(KERN_INFO "MINI6410: '%c' ignored, "
 301                                        "screen type already set\n", f);
 302                        } else {
 303                                int li = f - '0';
 304                                if (li >= ARRAY_SIZE(mini6410_lcd_pdata))
 305                                        printk(KERN_INFO "MINI6410: '%c' out "
 306                                                "of range LCD mode\n", f);
 307                                else {
 308                                        features->lcd_index = li;
 309                                }
 310                        }
 311                        features->done |= FEATURE_SCREEN;
 312                        break;
 313                }
 314        }
 315}
 316
 317static void __init mini6410_machine_init(void)
 318{
 319        u32 cs1;
 320        struct mini6410_features_t features = { 0 };
 321
 322        printk(KERN_INFO "MINI6410: Option string mini6410=%s\n",
 323                        mini6410_features_str);
 324
 325        /* Parse the feature string */
 326        mini6410_parse_features(&features, mini6410_features_str);
 327
 328        printk(KERN_INFO "MINI6410: selected LCD display is %dx%d\n",
 329                mini6410_lcd_pdata[features.lcd_index].win[0]->xres,
 330                mini6410_lcd_pdata[features.lcd_index].win[0]->yres);
 331
 332        s3c_nand_set_platdata(&mini6410_nand_info);
 333        s3c_fb_set_platdata(&mini6410_lcd_pdata[features.lcd_index]);
 334        s3c_sdhci1_set_platdata(&mini6410_hsmmc1_pdata);
 335        s3c64xx_ts_set_platdata(NULL);
 336
 337        /* configure nCS1 width to 16 bits */
 338
 339        cs1 = __raw_readl(S3C64XX_SROM_BW) &
 340                ~(S3C64XX_SROM_BW__CS_MASK << S3C64XX_SROM_BW__NCS1__SHIFT);
 341        cs1 |= ((1 << S3C64XX_SROM_BW__DATAWIDTH__SHIFT) |
 342                (1 << S3C64XX_SROM_BW__WAITENABLE__SHIFT) |
 343                (1 << S3C64XX_SROM_BW__BYTEENABLE__SHIFT)) <<
 344                        S3C64XX_SROM_BW__NCS1__SHIFT;
 345        __raw_writel(cs1, S3C64XX_SROM_BW);
 346
 347        /* set timing for nCS1 suitable for ethernet chip */
 348
 349        __raw_writel((0 << S3C64XX_SROM_BCX__PMC__SHIFT) |
 350                (6 << S3C64XX_SROM_BCX__TACP__SHIFT) |
 351                (4 << S3C64XX_SROM_BCX__TCAH__SHIFT) |
 352                (1 << S3C64XX_SROM_BCX__TCOH__SHIFT) |
 353                (13 << S3C64XX_SROM_BCX__TACC__SHIFT) |
 354                (4 << S3C64XX_SROM_BCX__TCOS__SHIFT) |
 355                (0 << S3C64XX_SROM_BCX__TACS__SHIFT), S3C64XX_SROM_BC1);
 356
 357        gpio_request(S3C64XX_GPF(15), "LCD power");
 358        gpio_request(S3C64XX_GPE(0), "LCD power");
 359
 360        platform_add_devices(mini6410_devices, ARRAY_SIZE(mini6410_devices));
 361}
 362
 363MACHINE_START(MINI6410, "MINI6410")
 364        /* Maintainer: Darius Augulis <augulis.darius@gmail.com> */
 365        .atag_offset    = 0x100,
 366        .nr_irqs        = S3C64XX_NR_IRQS,
 367        .init_irq       = s3c6410_init_irq,
 368        .map_io         = mini6410_map_io,
 369        .init_machine   = mini6410_machine_init,
 370        .init_time      = samsung_timer_init,
 371        .restart        = s3c64xx_restart,
 372MACHINE_END
 373