linux/arch/arm/mach-s3c64xx/mach-mini6410.c
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   1// SPDX-License-Identifier: GPL-2.0
   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#include <linux/init.h>
  10#include <linux/interrupt.h>
  11#include <linux/fb.h>
  12#include <linux/gpio.h>
  13#include <linux/kernel.h>
  14#include <linux/list.h>
  15#include <linux/dm9000.h>
  16#include <linux/mtd/mtd.h>
  17#include <linux/mtd/partitions.h>
  18#include <linux/serial_core.h>
  19#include <linux/serial_s3c.h>
  20#include <linux/types.h>
  21
  22#include <asm/mach-types.h>
  23#include <asm/mach/arch.h>
  24#include <asm/mach/map.h>
  25
  26#include <mach/map.h>
  27#include <mach/regs-gpio.h>
  28#include <mach/gpio-samsung.h>
  29
  30#include <plat/adc.h>
  31#include <plat/cpu.h>
  32#include <plat/devs.h>
  33#include <plat/fb.h>
  34#include <linux/platform_data/mtd-nand-s3c2410.h>
  35#include <linux/platform_data/mmc-sdhci-s3c.h>
  36#include <plat/sdhci.h>
  37#include <linux/platform_data/touchscreen-s3c2410.h>
  38#include <mach/irqs.h>
  39
  40#include <video/platform_lcd.h>
  41#include <video/samsung_fimd.h>
  42#include <plat/samsung-time.h>
  43
  44#include "common.h"
  45#include "regs-modem.h"
  46#include "regs-srom.h"
  47
  48#define UCON S3C2410_UCON_DEFAULT
  49#define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB)
  50#define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
  51
  52static struct s3c2410_uartcfg mini6410_uartcfgs[] __initdata = {
  53        [0] = {
  54                .hwport = 0,
  55                .flags  = 0,
  56                .ucon   = UCON,
  57                .ulcon  = ULCON,
  58                .ufcon  = UFCON,
  59        },
  60        [1] = {
  61                .hwport = 1,
  62                .flags  = 0,
  63                .ucon   = UCON,
  64                .ulcon  = ULCON,
  65                .ufcon  = UFCON,
  66        },
  67        [2] = {
  68                .hwport = 2,
  69                .flags  = 0,
  70                .ucon   = UCON,
  71                .ulcon  = ULCON,
  72                .ufcon  = UFCON,
  73        },
  74        [3] = {
  75                .hwport = 3,
  76                .flags  = 0,
  77                .ucon   = UCON,
  78                .ulcon  = ULCON,
  79                .ufcon  = UFCON,
  80        },
  81};
  82
  83/* DM9000AEP 10/100 ethernet controller */
  84
  85static struct resource mini6410_dm9k_resource[] = {
  86        [0] = DEFINE_RES_MEM(S3C64XX_PA_XM0CSN1, 2),
  87        [1] = DEFINE_RES_MEM(S3C64XX_PA_XM0CSN1 + 4, 2),
  88        [2] = DEFINE_RES_NAMED(S3C_EINT(7), 1, NULL, IORESOURCE_IRQ \
  89                                        | IORESOURCE_IRQ_HIGHLEVEL),
  90};
  91
  92static struct dm9000_plat_data mini6410_dm9k_pdata = {
  93        .flags          = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
  94};
  95
  96static struct platform_device mini6410_device_eth = {
  97        .name           = "dm9000",
  98        .id             = -1,
  99        .num_resources  = ARRAY_SIZE(mini6410_dm9k_resource),
 100        .resource       = mini6410_dm9k_resource,
 101        .dev            = {
 102                .platform_data  = &mini6410_dm9k_pdata,
 103        },
 104};
 105
 106static struct mtd_partition mini6410_nand_part[] = {
 107        [0] = {
 108                .name   = "uboot",
 109                .size   = SZ_1M,
 110                .offset = 0,
 111        },
 112        [1] = {
 113                .name   = "kernel",
 114                .size   = SZ_2M,
 115                .offset = SZ_1M,
 116        },
 117        [2] = {
 118                .name   = "rootfs",
 119                .size   = MTDPART_SIZ_FULL,
 120                .offset = SZ_1M + SZ_2M,
 121        },
 122};
 123
 124static struct s3c2410_nand_set mini6410_nand_sets[] = {
 125        [0] = {
 126                .name           = "nand",
 127                .nr_chips       = 1,
 128                .nr_partitions  = ARRAY_SIZE(mini6410_nand_part),
 129                .partitions     = mini6410_nand_part,
 130        },
 131};
 132
 133static struct s3c2410_platform_nand mini6410_nand_info = {
 134        .tacls          = 25,
 135        .twrph0         = 55,
 136        .twrph1         = 40,
 137        .nr_sets        = ARRAY_SIZE(mini6410_nand_sets),
 138        .sets           = mini6410_nand_sets,
 139        .ecc_mode       = NAND_ECC_SOFT,
 140};
 141
 142static struct s3c_fb_pd_win mini6410_lcd_type0_fb_win = {
 143        .max_bpp        = 32,
 144        .default_bpp    = 16,
 145        .xres           = 480,
 146        .yres           = 272,
 147};
 148
 149static struct fb_videomode mini6410_lcd_type0_timing = {
 150        /* 4.3" 480x272 */
 151        .left_margin    = 3,
 152        .right_margin   = 2,
 153        .upper_margin   = 1,
 154        .lower_margin   = 1,
 155        .hsync_len      = 40,
 156        .vsync_len      = 1,
 157        .xres           = 480,
 158        .yres           = 272,
 159};
 160
 161static struct s3c_fb_pd_win mini6410_lcd_type1_fb_win = {
 162        .max_bpp        = 32,
 163        .default_bpp    = 16,
 164        .xres           = 800,
 165        .yres           = 480,
 166};
 167
 168static struct fb_videomode mini6410_lcd_type1_timing = {
 169        /* 7.0" 800x480 */
 170        .left_margin    = 8,
 171        .right_margin   = 13,
 172        .upper_margin   = 7,
 173        .lower_margin   = 5,
 174        .hsync_len      = 3,
 175        .vsync_len      = 1,
 176        .xres           = 800,
 177        .yres           = 480,
 178};
 179
 180static struct s3c_fb_platdata mini6410_lcd_pdata[] __initdata = {
 181        {
 182                .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
 183                .vtiming        = &mini6410_lcd_type0_timing,
 184                .win[0]         = &mini6410_lcd_type0_fb_win,
 185                .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
 186                .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
 187        }, {
 188                .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
 189                .vtiming        = &mini6410_lcd_type1_timing,
 190                .win[0]         = &mini6410_lcd_type1_fb_win,
 191                .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
 192                .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
 193        },
 194        { },
 195};
 196
 197static void mini6410_lcd_power_set(struct plat_lcd_data *pd,
 198                                   unsigned int power)
 199{
 200        if (power)
 201                gpio_direction_output(S3C64XX_GPE(0), 1);
 202        else
 203                gpio_direction_output(S3C64XX_GPE(0), 0);
 204}
 205
 206static struct plat_lcd_data mini6410_lcd_power_data = {
 207        .set_power      = mini6410_lcd_power_set,
 208};
 209
 210static struct platform_device mini6410_lcd_powerdev = {
 211        .name                   = "platform-lcd",
 212        .dev.parent             = &s3c_device_fb.dev,
 213        .dev.platform_data      = &mini6410_lcd_power_data,
 214};
 215
 216static struct s3c_sdhci_platdata mini6410_hsmmc1_pdata = {
 217        .max_width              = 4,
 218        .cd_type                = S3C_SDHCI_CD_GPIO,
 219        .ext_cd_gpio            = S3C64XX_GPN(10),
 220        .ext_cd_gpio_invert     = true,
 221};
 222
 223static struct platform_device *mini6410_devices[] __initdata = {
 224        &mini6410_device_eth,
 225        &s3c_device_hsmmc0,
 226        &s3c_device_hsmmc1,
 227        &s3c_device_ohci,
 228        &s3c_device_nand,
 229        &s3c_device_fb,
 230        &mini6410_lcd_powerdev,
 231        &s3c_device_adc,
 232};
 233
 234static void __init mini6410_map_io(void)
 235{
 236        u32 tmp;
 237
 238        s3c64xx_init_io(NULL, 0);
 239        s3c64xx_set_xtal_freq(12000000);
 240        s3c24xx_init_uarts(mini6410_uartcfgs, ARRAY_SIZE(mini6410_uartcfgs));
 241        samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 242
 243        /* set the LCD type */
 244        tmp = __raw_readl(S3C64XX_SPCON);
 245        tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
 246        tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
 247        __raw_writel(tmp, S3C64XX_SPCON);
 248
 249        /* remove the LCD bypass */
 250        tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
 251        tmp &= ~MIFPCON_LCD_BYPASS;
 252        __raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
 253}
 254
 255/*
 256 * mini6410_features string
 257 *
 258 * 0-9 LCD configuration
 259 *
 260 */
 261static char mini6410_features_str[12] __initdata = "0";
 262
 263static int __init mini6410_features_setup(char *str)
 264{
 265        if (str)
 266                strlcpy(mini6410_features_str, str,
 267                        sizeof(mini6410_features_str));
 268        return 1;
 269}
 270
 271__setup("mini6410=", mini6410_features_setup);
 272
 273#define FEATURE_SCREEN (1 << 0)
 274
 275struct mini6410_features_t {
 276        int done;
 277        int lcd_index;
 278};
 279
 280static void mini6410_parse_features(
 281                struct mini6410_features_t *features,
 282                const char *features_str)
 283{
 284        const char *fp = features_str;
 285
 286        features->done = 0;
 287        features->lcd_index = 0;
 288
 289        while (*fp) {
 290                char f = *fp++;
 291
 292                switch (f) {
 293                case '0'...'9': /* tft screen */
 294                        if (features->done & FEATURE_SCREEN) {
 295                                printk(KERN_INFO "MINI6410: '%c' ignored, "
 296                                        "screen type already set\n", f);
 297                        } else {
 298                                int li = f - '0';
 299                                if (li >= ARRAY_SIZE(mini6410_lcd_pdata))
 300                                        printk(KERN_INFO "MINI6410: '%c' out "
 301                                                "of range LCD mode\n", f);
 302                                else {
 303                                        features->lcd_index = li;
 304                                }
 305                        }
 306                        features->done |= FEATURE_SCREEN;
 307                        break;
 308                }
 309        }
 310}
 311
 312static void __init mini6410_machine_init(void)
 313{
 314        u32 cs1;
 315        struct mini6410_features_t features = { 0 };
 316
 317        printk(KERN_INFO "MINI6410: Option string mini6410=%s\n",
 318                        mini6410_features_str);
 319
 320        /* Parse the feature string */
 321        mini6410_parse_features(&features, mini6410_features_str);
 322
 323        printk(KERN_INFO "MINI6410: selected LCD display is %dx%d\n",
 324                mini6410_lcd_pdata[features.lcd_index].win[0]->xres,
 325                mini6410_lcd_pdata[features.lcd_index].win[0]->yres);
 326
 327        s3c_nand_set_platdata(&mini6410_nand_info);
 328        s3c_fb_set_platdata(&mini6410_lcd_pdata[features.lcd_index]);
 329        s3c_sdhci1_set_platdata(&mini6410_hsmmc1_pdata);
 330        s3c64xx_ts_set_platdata(NULL);
 331
 332        /* configure nCS1 width to 16 bits */
 333
 334        cs1 = __raw_readl(S3C64XX_SROM_BW) &
 335                ~(S3C64XX_SROM_BW__CS_MASK << S3C64XX_SROM_BW__NCS1__SHIFT);
 336        cs1 |= ((1 << S3C64XX_SROM_BW__DATAWIDTH__SHIFT) |
 337                (1 << S3C64XX_SROM_BW__WAITENABLE__SHIFT) |
 338                (1 << S3C64XX_SROM_BW__BYTEENABLE__SHIFT)) <<
 339                        S3C64XX_SROM_BW__NCS1__SHIFT;
 340        __raw_writel(cs1, S3C64XX_SROM_BW);
 341
 342        /* set timing for nCS1 suitable for ethernet chip */
 343
 344        __raw_writel((0 << S3C64XX_SROM_BCX__PMC__SHIFT) |
 345                (6 << S3C64XX_SROM_BCX__TACP__SHIFT) |
 346                (4 << S3C64XX_SROM_BCX__TCAH__SHIFT) |
 347                (1 << S3C64XX_SROM_BCX__TCOH__SHIFT) |
 348                (13 << S3C64XX_SROM_BCX__TACC__SHIFT) |
 349                (4 << S3C64XX_SROM_BCX__TCOS__SHIFT) |
 350                (0 << S3C64XX_SROM_BCX__TACS__SHIFT), S3C64XX_SROM_BC1);
 351
 352        gpio_request(S3C64XX_GPF(15), "LCD power");
 353        gpio_request(S3C64XX_GPE(0), "LCD power");
 354
 355        platform_add_devices(mini6410_devices, ARRAY_SIZE(mini6410_devices));
 356}
 357
 358MACHINE_START(MINI6410, "MINI6410")
 359        /* Maintainer: Darius Augulis <augulis.darius@gmail.com> */
 360        .atag_offset    = 0x100,
 361        .nr_irqs        = S3C64XX_NR_IRQS,
 362        .init_irq       = s3c6410_init_irq,
 363        .map_io         = mini6410_map_io,
 364        .init_machine   = mini6410_machine_init,
 365        .init_time      = samsung_timer_init,
 366        .restart        = s3c64xx_restart,
 367MACHINE_END
 368