arch/arm/mach-s3c/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 "map.h"
  27 #include "regs-gpio.h"
  28 #include "gpio-samsung.h"
  29
  30 #include <linux/soc/samsung/s3c-adc.h>
  31 #include "cpu.h"
  32 #include "devs.h"
  33 #include "fb.h"
  34 #include <linux/platform_data/mtd-nand-s3c2410.h>
  35 #include <linux/platform_data/mmc-sdhci-s3c.h>
  36 #include "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
  43 #include "s3c64xx.h"
  44 #include "regs-modem-s3c64xx.h"
  45 #include "regs-srom-s3c64xx.h"
  46
  47 #define UCON S3C2410_UCON_DEFAULT
  48 #define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB)
  49 #define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
  50
  51 static struct s3c2410_uartcfg mini6410_uartcfgs[] __initdata = {
  52         [0] = {
  53                 .hwport = 0,
  54                 .flags  = 0,
  55                 .ucon   = UCON,
  56                 .ulcon  = ULCON,
  57                 .ufcon  = UFCON,
  58         },
  59         [1] = {
  60                 .hwport = 1,
  61                 .flags  = 0,
  62                 .ucon   = UCON,
  63                 .ulcon  = ULCON,
  64                 .ufcon  = UFCON,
  65         },
  66         [2] = {
  67                 .hwport = 2,
  68                 .flags  = 0,
  69                 .ucon   = UCON,
  70                 .ulcon  = ULCON,
  71                 .ufcon  = UFCON,
  72         },
  73         [3] = {
  74                 .hwport = 3,
  75                 .flags  = 0,
  76                 .ucon   = UCON,
  77                 .ulcon  = ULCON,
  78                 .ufcon  = UFCON,
  79         },
  80 };
  81
  82 /* DM9000AEP 10/100 ethernet controller */
  83
  84 static struct resource mini6410_dm9k_resource[] = {
  85         [0] = DEFINE_RES_MEM(S3C64XX_PA_XM0CSN1, 2),
  86         [1] = DEFINE_RES_MEM(S3C64XX_PA_XM0CSN1 + 4, 2),
  87         [2] = DEFINE_RES_NAMED(S3C_EINT(7), 1, NULL, IORESOURCE_IRQ \
  88                                         | IORESOURCE_IRQ_HIGHLEVEL),
  89 };
  90
  91 static struct dm9000_plat_data mini6410_dm9k_pdata = {
  92         .flags          = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
  93 };
  94
  95 static struct platform_device mini6410_device_eth = {
  96         .name           = "dm9000",
  97         .id             = -1,
  98         .num_resources  = ARRAY_SIZE(mini6410_dm9k_resource),
  99         .resource       = mini6410_dm9k_resource,
 100         .dev            = {
 101                 .platform_data  = &mini6410_dm9k_pdata,
 102         },
 103 };
 104
 105 static struct mtd_partition mini6410_nand_part[] = {
 106         [0] = {
 107                 .name   = "uboot",
 108                 .size   = SZ_1M,
 109                 .offset = 0,
 110         },
 111         [1] = {
 112                 .name   = "kernel",
 113                 .size   = SZ_2M,
 114                 .offset = SZ_1M,
 115         },
 116         [2] = {
 117                 .name   = "rootfs",
 118                 .size   = MTDPART_SIZ_FULL,
 119                 .offset = SZ_1M + SZ_2M,
 120         },
 121 };
 122
 123 static struct s3c2410_nand_set mini6410_nand_sets[] = {
 124         [0] = {
 125                 .name           = "nand",
 126                 .nr_chips       = 1,
 127                 .nr_partitions  = ARRAY_SIZE(mini6410_nand_part),
 128                 .partitions     = mini6410_nand_part,
 129         },
 130 };
 131
 132 static struct s3c2410_platform_nand mini6410_nand_info = {
 133         .tacls          = 25,
 134         .twrph0         = 55,
 135         .twrph1         = 40,
 136         .nr_sets        = ARRAY_SIZE(mini6410_nand_sets),
 137         .sets           = mini6410_nand_sets,
 138         .engine_type    = NAND_ECC_ENGINE_TYPE_SOFT,
 139 };
 140
 141 static struct s3c_fb_pd_win mini6410_lcd_type0_fb_win = {
 142         .max_bpp        = 32,
 143         .default_bpp    = 16,
 144         .xres           = 480,
 145         .yres           = 272,
 146 };
 147
 148 static struct fb_videomode mini6410_lcd_type0_timing = {
 149         /* 4.3" 480x272 */
 150         .left_margin    = 3,
 151         .right_margin   = 2,
 152         .upper_margin   = 1,
 153         .lower_margin   = 1,
 154         .hsync_len      = 40,
 155         .vsync_len      = 1,
 156         .xres           = 480,
 157         .yres           = 272,
 158 };
 159
 160 static struct s3c_fb_pd_win mini6410_lcd_type1_fb_win = {
 161         .max_bpp        = 32,
 162         .default_bpp    = 16,
 163         .xres           = 800,
 164         .yres           = 480,
 165 };
 166
 167 static struct fb_videomode mini6410_lcd_type1_timing = {
 168         /* 7.0" 800x480 */
 169         .left_margin    = 8,
 170         .right_margin   = 13,
 171         .upper_margin   = 7,
 172         .lower_margin   = 5,
 173         .hsync_len      = 3,
 174         .vsync_len      = 1,
 175         .xres           = 800,
 176         .yres           = 480,
 177 };
 178
 179 static struct s3c_fb_platdata mini6410_lcd_pdata[] __initdata = {
 180         {
 181                 .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
 182                 .vtiming        = &mini6410_lcd_type0_timing,
 183                 .win[0]         = &mini6410_lcd_type0_fb_win,
 184                 .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
 185                 .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
 186         }, {
 187                 .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
 188                 .vtiming        = &mini6410_lcd_type1_timing,
 189                 .win[0]         = &mini6410_lcd_type1_fb_win,
 190                 .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
 191                 .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
 192         },
 193         { },
 194 };
 195
 196 static void mini6410_lcd_power_set(struct plat_lcd_data *pd,
 197                                    unsigned int power)
 198 {
 199         if (power)
 200                 gpio_direction_output(S3C64XX_GPE(0), 1);
 201         else
 202                 gpio_direction_output(S3C64XX_GPE(0), 0);
 203 }
 204
 205 static struct plat_lcd_data mini6410_lcd_power_data = {
 206         .set_power      = mini6410_lcd_power_set,
 207 };
 208
 209 static struct platform_device mini6410_lcd_powerdev = {
 210         .name                   = "platform-lcd",
 211         .dev.parent             = &s3c_device_fb.dev,
 212         .dev.platform_data      = &mini6410_lcd_power_data,
 213 };
 214
 215 static struct s3c_sdhci_platdata mini6410_hsmmc1_pdata = {
 216         .max_width              = 4,
 217         .cd_type                = S3C_SDHCI_CD_GPIO,
 218         .ext_cd_gpio            = S3C64XX_GPN(10),
 219         .ext_cd_gpio_invert     = true,
 220 };
 221
 222 static struct platform_device *mini6410_devices[] __initdata = {
 223         &mini6410_device_eth,
 224         &s3c_device_hsmmc0,
 225         &s3c_device_hsmmc1,
 226         &s3c_device_ohci,
 227         &s3c_device_nand,
 228         &s3c_device_fb,
 229         &mini6410_lcd_powerdev,
 230         &s3c_device_adc,
 231 };
 232
 233 static void __init mini6410_map_io(void)
 234 {
 235         u32 tmp;
 236
 237         s3c64xx_init_io(NULL, 0);
 238         s3c64xx_set_xtal_freq(12000000);
 239         s3c24xx_init_uarts(mini6410_uartcfgs, ARRAY_SIZE(mini6410_uartcfgs));
 240         s3c64xx_set_timer_source(S3C64XX_PWM3, S3C64XX_PWM4);
 241
 242         /* set the LCD type */
 243         tmp = __raw_readl(S3C64XX_SPCON);
 244         tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
 245         tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
 246         __raw_writel(tmp, S3C64XX_SPCON);
 247
 248         /* remove the LCD bypass */
 249         tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
 250         tmp &= ~MIFPCON_LCD_BYPASS;
 251         __raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
 252 }
 253
 254 /*
 255  * mini6410_features string
 256  *
 257  * 0-9 LCD configuration
 258  *
 259  */
 260 static char mini6410_features_str[12] __initdata = "0";
 261
 262 static int __init mini6410_features_setup(char *str)
 263 {
 264         if (str)
 265                 strlcpy(mini6410_features_str, str,
 266                         sizeof(mini6410_features_str));
 267         return 1;
 268 }
 269
 270 __setup("mini6410=", mini6410_features_setup);
 271
 272 #define FEATURE_SCREEN (1 << 0)
 273
 274 struct mini6410_features_t {
 275         int done;
 276         int lcd_index;
 277 };
 278
 279 static void mini6410_parse_features(
 280                 struct mini6410_features_t *features,
 281                 const char *features_str)
 282 {
 283         const char *fp = features_str;
 284
 285         features->done = 0;
 286         features->lcd_index = 0;
 287
 288         while (*fp) {
 289                 char f = *fp++;
 290
 291                 switch (f) {
 292                 case '0'...'9': /* tft screen */
 293                         if (features->done & FEATURE_SCREEN) {
 294                                 printk(KERN_INFO "MINI6410: '%c' ignored, "
 295                                         "screen type already set\n", f);
 296                         } else {
 297                                 int li = f - '0';
 298                                 if (li >= ARRAY_SIZE(mini6410_lcd_pdata))
 299                                         printk(KERN_INFO "MINI6410: '%c' out "
 300                                                 "of range LCD mode\n", f);
 301                                 else {
 302                                         features->lcd_index = li;
 303                                 }
 304                         }
 305                         features->done |= FEATURE_SCREEN;
 306                         break;
 307                 }
 308         }
 309 }
 310
 311 static void __init mini6410_machine_init(void)
 312 {
 313         u32 cs1;
 314         struct mini6410_features_t features = { 0 };
 315
 316         printk(KERN_INFO "MINI6410: Option string mini6410=%s\n",
 317                         mini6410_features_str);
 318
 319         /* Parse the feature string */
 320         mini6410_parse_features(&features, mini6410_features_str);
 321
 322         printk(KERN_INFO "MINI6410: selected LCD display is %dx%d\n",
 323                 mini6410_lcd_pdata[features.lcd_index].win[0]->xres,
 324                 mini6410_lcd_pdata[features.lcd_index].win[0]->yres);
 325
 326         s3c_nand_set_platdata(&mini6410_nand_info);
 327         s3c_fb_set_platdata(&mini6410_lcd_pdata[features.lcd_index]);
 328         s3c_sdhci1_set_platdata(&mini6410_hsmmc1_pdata);
 329         s3c64xx_ts_set_platdata(NULL);
 330
 331         /* configure nCS1 width to 16 bits */
 332
 333         cs1 = __raw_readl(S3C64XX_SROM_BW) &
 334                 ~(S3C64XX_SROM_BW__CS_MASK << S3C64XX_SROM_BW__NCS1__SHIFT);
 335         cs1 |= ((1 << S3C64XX_SROM_BW__DATAWIDTH__SHIFT) |
 336                 (1 << S3C64XX_SROM_BW__WAITENABLE__SHIFT) |
 337                 (1 << S3C64XX_SROM_BW__BYTEENABLE__SHIFT)) <<
 338                         S3C64XX_SROM_BW__NCS1__SHIFT;
 339         __raw_writel(cs1, S3C64XX_SROM_BW);
 340
 341         /* set timing for nCS1 suitable for ethernet chip */
 342
 343         __raw_writel((0 << S3C64XX_SROM_BCX__PMC__SHIFT) |
 344                 (6 << S3C64XX_SROM_BCX__TACP__SHIFT) |
 345                 (4 << S3C64XX_SROM_BCX__TCAH__SHIFT) |
 346                 (1 << S3C64XX_SROM_BCX__TCOH__SHIFT) |
 347                 (13 << S3C64XX_SROM_BCX__TACC__SHIFT) |
 348                 (4 << S3C64XX_SROM_BCX__TCOS__SHIFT) |
 349                 (0 << S3C64XX_SROM_BCX__TACS__SHIFT), S3C64XX_SROM_BC1);
 350
 351         gpio_request(S3C64XX_GPF(15), "LCD power");
 352         gpio_request(S3C64XX_GPE(0), "LCD power");
 353
 354         platform_add_devices(mini6410_devices, ARRAY_SIZE(mini6410_devices));
 355 }
 356
 357 MACHINE_START(MINI6410, "MINI6410")
 358         /* Maintainer: Darius Augulis <augulis.darius@gmail.com> */
 359         .atag_offset    = 0x100,
 360         .nr_irqs        = S3C64XX_NR_IRQS,
 361         .init_irq       = s3c6410_init_irq,
 362         .map_io         = mini6410_map_io,
 363         .init_machine   = mini6410_machine_init,
 364         .init_time      = s3c64xx_timer_init,
 365 MACHINE_END