arch/arm/mach-s3c64xx/mach-mini6410.c

   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
  52 static 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
  85 static 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
  92 static struct dm9000_plat_data mini6410_dm9k_pdata = {
  93         .flags          = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
  94 };
  95
  96 static 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
 106 static 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
 124 static 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
 133 static 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
 142 static 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
 149 static 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
 161 static 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
 168 static 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
 180 static 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
 197 static 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
 206 static struct plat_lcd_data mini6410_lcd_power_data = {
 207         .set_power      = mini6410_lcd_power_set,
 208 };
 209
 210 static 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
 216 static 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
 223 static 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
 234 static 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  */
 261 static char mini6410_features_str[12] __initdata = "0";
 262
 263 static 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
 275 struct mini6410_features_t {
 276         int done;
 277         int lcd_index;
 278 };
 279
 280 static 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
 312 static 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
 358 MACHINE_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,
 367 MACHINE_END