arch/arm/mach-s3c64xx/mach-real6410.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/platform_device.h>
  19 #include <linux/serial_core.h>
  20 #include <linux/serial_s3c.h>
  21 #include <linux/types.h>
  22
  23 #include <asm/mach-types.h>
  24 #include <asm/mach/arch.h>
  25 #include <asm/mach/map.h>
  26
  27 #include <mach/map.h>
  28 #include <mach/regs-gpio.h>
  29 #include <mach/gpio-samsung.h>
  30 #include <mach/irqs.h>
  31
  32 #include <plat/adc.h>
  33 #include <plat/cpu.h>
  34 #include <plat/devs.h>
  35 #include <plat/fb.h>
  36 #include <linux/platform_data/mtd-nand-s3c2410.h>
  37 #include <linux/platform_data/touchscreen-s3c2410.h>
  38
  39 #include <video/platform_lcd.h>
  40 #include <video/samsung_fimd.h>
  41 #include <plat/samsung-time.h>
  42
  43 #include "common.h"
  44 #include "regs-modem.h"
  45 #include "regs-srom.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 real6410_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 real6410_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 real6410_dm9k_pdata = {
  92         .flags          = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
  93 };
  94
  95 static struct platform_device real6410_device_eth = {
  96         .name           = "dm9000",
  97         .id             = -1,
  98         .num_resources  = ARRAY_SIZE(real6410_dm9k_resource),
  99         .resource       = real6410_dm9k_resource,
 100         .dev            = {
 101                 .platform_data  = &real6410_dm9k_pdata,
 102         },
 103 };
 104
 105 static struct s3c_fb_pd_win real6410_lcd_type0_fb_win = {
 106         .max_bpp        = 32,
 107         .default_bpp    = 16,
 108         .xres           = 480,
 109         .yres           = 272,
 110 };
 111
 112 static struct fb_videomode real6410_lcd_type0_timing = {
 113         /* 4.3" 480x272 */
 114         .left_margin    = 3,
 115         .right_margin   = 2,
 116         .upper_margin   = 1,
 117         .lower_margin   = 1,
 118         .hsync_len      = 40,
 119         .vsync_len      = 1,
 120 };
 121
 122 static struct s3c_fb_pd_win real6410_lcd_type1_fb_win = {
 123         .max_bpp        = 32,
 124         .default_bpp    = 16,
 125         .xres           = 800,
 126         .yres           = 480,
 127 };
 128
 129 static struct fb_videomode real6410_lcd_type1_timing = {
 130         /* 7.0" 800x480 */
 131         .left_margin    = 8,
 132         .right_margin   = 13,
 133         .upper_margin   = 7,
 134         .lower_margin   = 5,
 135         .hsync_len      = 3,
 136         .vsync_len      = 1,
 137         .xres           = 800,
 138         .yres           = 480,
 139 };
 140
 141 static struct s3c_fb_platdata real6410_lcd_pdata[] __initdata = {
 142         {
 143                 .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
 144                 .vtiming        = &real6410_lcd_type0_timing,
 145                 .win[0]         = &real6410_lcd_type0_fb_win,
 146                 .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
 147                 .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
 148         }, {
 149                 .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
 150                 .vtiming        = &real6410_lcd_type1_timing,
 151                 .win[0]         = &real6410_lcd_type1_fb_win,
 152                 .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
 153                 .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
 154         },
 155         { },
 156 };
 157
 158 static struct mtd_partition real6410_nand_part[] = {
 159         [0] = {
 160                 .name   = "uboot",
 161                 .size   = SZ_1M,
 162                 .offset = 0,
 163         },
 164         [1] = {
 165                 .name   = "kernel",
 166                 .size   = SZ_2M,
 167                 .offset = SZ_1M,
 168         },
 169         [2] = {
 170                 .name   = "rootfs",
 171                 .size   = MTDPART_SIZ_FULL,
 172                 .offset = SZ_1M + SZ_2M,
 173         },
 174 };
 175
 176 static struct s3c2410_nand_set real6410_nand_sets[] = {
 177         [0] = {
 178                 .name           = "nand",
 179                 .nr_chips       = 1,
 180                 .nr_partitions  = ARRAY_SIZE(real6410_nand_part),
 181                 .partitions     = real6410_nand_part,
 182         },
 183 };
 184
 185 static struct s3c2410_platform_nand real6410_nand_info = {
 186         .tacls          = 25,
 187         .twrph0         = 55,
 188         .twrph1         = 40,
 189         .nr_sets        = ARRAY_SIZE(real6410_nand_sets),
 190         .sets           = real6410_nand_sets,
 191         .ecc_mode       = NAND_ECC_SOFT,
 192 };
 193
 194 static struct platform_device *real6410_devices[] __initdata = {
 195         &real6410_device_eth,
 196         &s3c_device_hsmmc0,
 197         &s3c_device_hsmmc1,
 198         &s3c_device_fb,
 199         &s3c_device_nand,
 200         &s3c_device_adc,
 201         &s3c_device_ohci,
 202 };
 203
 204 static void __init real6410_map_io(void)
 205 {
 206         u32 tmp;
 207
 208         s3c64xx_init_io(NULL, 0);
 209         s3c24xx_init_clocks(12000000);
 210         s3c24xx_init_uarts(real6410_uartcfgs, ARRAY_SIZE(real6410_uartcfgs));
 211         samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 212
 213         /* set the LCD type */
 214         tmp = __raw_readl(S3C64XX_SPCON);
 215         tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
 216         tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
 217         __raw_writel(tmp, S3C64XX_SPCON);
 218
 219         /* remove the LCD bypass */
 220         tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
 221         tmp &= ~MIFPCON_LCD_BYPASS;
 222         __raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
 223 }
 224
 225 /*
 226  * real6410_features string
 227  *
 228  * 0-9 LCD configuration
 229  *
 230  */
 231 static char real6410_features_str[12] __initdata = "0";
 232
 233 static int __init real6410_features_setup(char *str)
 234 {
 235         if (str)
 236                 strlcpy(real6410_features_str, str,
 237                         sizeof(real6410_features_str));
 238         return 1;
 239 }
 240
 241 __setup("real6410=", real6410_features_setup);
 242
 243 #define FEATURE_SCREEN (1 << 0)
 244
 245 struct real6410_features_t {
 246         int done;
 247         int lcd_index;
 248 };
 249
 250 static void real6410_parse_features(
 251                 struct real6410_features_t *features,
 252                 const char *features_str)
 253 {
 254         const char *fp = features_str;
 255
 256         features->done = 0;
 257         features->lcd_index = 0;
 258
 259         while (*fp) {
 260                 char f = *fp++;
 261
 262                 switch (f) {
 263                 case '0'...'9': /* tft screen */
 264                         if (features->done & FEATURE_SCREEN) {
 265                                 printk(KERN_INFO "REAL6410: '%c' ignored, "
 266                                         "screen type already set\n", f);
 267                         } else {
 268                                 int li = f - '0';
 269                                 if (li >= ARRAY_SIZE(real6410_lcd_pdata))
 270                                         printk(KERN_INFO "REAL6410: '%c' out "
 271                                                 "of range LCD mode\n", f);
 272                                 else {
 273                                         features->lcd_index = li;
 274                                 }
 275                         }
 276                         features->done |= FEATURE_SCREEN;
 277                         break;
 278                 }
 279         }
 280 }
 281
 282 static void __init real6410_machine_init(void)
 283 {
 284         u32 cs1;
 285         struct real6410_features_t features = { 0 };
 286
 287         printk(KERN_INFO "REAL6410: Option string real6410=%s\n",
 288                         real6410_features_str);
 289
 290         /* Parse the feature string */
 291         real6410_parse_features(&features, real6410_features_str);
 292
 293         printk(KERN_INFO "REAL6410: selected LCD display is %dx%d\n",
 294                 real6410_lcd_pdata[features.lcd_index].win[0]->xres,
 295                 real6410_lcd_pdata[features.lcd_index].win[0]->yres);
 296
 297         s3c_fb_set_platdata(&real6410_lcd_pdata[features.lcd_index]);
 298         s3c_nand_set_platdata(&real6410_nand_info);
 299         s3c64xx_ts_set_platdata(NULL);
 300
 301         /* configure nCS1 width to 16 bits */
 302
 303         cs1 = __raw_readl(S3C64XX_SROM_BW) &
 304                 ~(S3C64XX_SROM_BW__CS_MASK << S3C64XX_SROM_BW__NCS1__SHIFT);
 305         cs1 |= ((1 << S3C64XX_SROM_BW__DATAWIDTH__SHIFT) |
 306                 (1 << S3C64XX_SROM_BW__WAITENABLE__SHIFT) |
 307                 (1 << S3C64XX_SROM_BW__BYTEENABLE__SHIFT)) <<
 308                         S3C64XX_SROM_BW__NCS1__SHIFT;
 309         __raw_writel(cs1, S3C64XX_SROM_BW);
 310
 311         /* set timing for nCS1 suitable for ethernet chip */
 312
 313         __raw_writel((0 << S3C64XX_SROM_BCX__PMC__SHIFT) |
 314                 (6 << S3C64XX_SROM_BCX__TACP__SHIFT) |
 315                 (4 << S3C64XX_SROM_BCX__TCAH__SHIFT) |
 316                 (1 << S3C64XX_SROM_BCX__TCOH__SHIFT) |
 317                 (13 << S3C64XX_SROM_BCX__TACC__SHIFT) |
 318                 (4 << S3C64XX_SROM_BCX__TCOS__SHIFT) |
 319                 (0 << S3C64XX_SROM_BCX__TACS__SHIFT), S3C64XX_SROM_BC1);
 320
 321         gpio_request(S3C64XX_GPF(15), "LCD power");
 322
 323         platform_add_devices(real6410_devices, ARRAY_SIZE(real6410_devices));
 324 }
 325
 326 MACHINE_START(REAL6410, "REAL6410")
 327         /* Maintainer: Darius Augulis <augulis.darius@gmail.com> */
 328         .atag_offset    = 0x100,
 329         .nr_irqs        = S3C64XX_NR_IRQS,
 330         .init_irq       = s3c6410_init_irq,
 331         .map_io         = real6410_map_io,
 332         .init_machine   = real6410_machine_init,
 333         .init_time      = samsung_timer_init,
 334         .restart        = s3c64xx_restart,
 335 MACHINE_END