arch/arm/mach-s3c/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 "map.h"
  28 #include "regs-gpio.h"
  29 #include "gpio-samsung.h"
  30 #include <mach/irqs.h>
  31
  32 #include <linux/soc/samsung/s3c-adc.h>
  33 #include "cpu.h"
  34 #include "devs.h"
  35 #include "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
  42 #include "s3c64xx.h"
  43 #include "regs-modem-s3c64xx.h"
  44 #include "regs-srom-s3c64xx.h"
  45
  46 #define UCON S3C2410_UCON_DEFAULT
  47 #define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB)
  48 #define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
  49
  50 static struct s3c2410_uartcfg real6410_uartcfgs[] __initdata = {
  51         [0] = {
  52                 .hwport = 0,
  53                 .flags  = 0,
  54                 .ucon   = UCON,
  55                 .ulcon  = ULCON,
  56                 .ufcon  = UFCON,
  57         },
  58         [1] = {
  59                 .hwport = 1,
  60                 .flags  = 0,
  61                 .ucon   = UCON,
  62                 .ulcon  = ULCON,
  63                 .ufcon  = UFCON,
  64         },
  65         [2] = {
  66                 .hwport = 2,
  67                 .flags  = 0,
  68                 .ucon   = UCON,
  69                 .ulcon  = ULCON,
  70                 .ufcon  = UFCON,
  71         },
  72         [3] = {
  73                 .hwport = 3,
  74                 .flags  = 0,
  75                 .ucon   = UCON,
  76                 .ulcon  = ULCON,
  77                 .ufcon  = UFCON,
  78         },
  79 };
  80
  81 /* DM9000AEP 10/100 ethernet controller */
  82
  83 static struct resource real6410_dm9k_resource[] = {
  84         [0] = DEFINE_RES_MEM(S3C64XX_PA_XM0CSN1, 2),
  85         [1] = DEFINE_RES_MEM(S3C64XX_PA_XM0CSN1 + 4, 2),
  86         [2] = DEFINE_RES_NAMED(S3C_EINT(7), 1, NULL, IORESOURCE_IRQ \
  87                                         | IORESOURCE_IRQ_HIGHLEVEL),
  88 };
  89
  90 static struct dm9000_plat_data real6410_dm9k_pdata = {
  91         .flags          = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
  92 };
  93
  94 static struct platform_device real6410_device_eth = {
  95         .name           = "dm9000",
  96         .id             = -1,
  97         .num_resources  = ARRAY_SIZE(real6410_dm9k_resource),
  98         .resource       = real6410_dm9k_resource,
  99         .dev            = {
 100                 .platform_data  = &real6410_dm9k_pdata,
 101         },
 102 };
 103
 104 static struct s3c_fb_pd_win real6410_lcd_type0_fb_win = {
 105         .max_bpp        = 32,
 106         .default_bpp    = 16,
 107         .xres           = 480,
 108         .yres           = 272,
 109 };
 110
 111 static struct fb_videomode real6410_lcd_type0_timing = {
 112         /* 4.3" 480x272 */
 113         .left_margin    = 3,
 114         .right_margin   = 2,
 115         .upper_margin   = 1,
 116         .lower_margin   = 1,
 117         .hsync_len      = 40,
 118         .vsync_len      = 1,
 119 };
 120
 121 static struct s3c_fb_pd_win real6410_lcd_type1_fb_win = {
 122         .max_bpp        = 32,
 123         .default_bpp    = 16,
 124         .xres           = 800,
 125         .yres           = 480,
 126 };
 127
 128 static struct fb_videomode real6410_lcd_type1_timing = {
 129         /* 7.0" 800x480 */
 130         .left_margin    = 8,
 131         .right_margin   = 13,
 132         .upper_margin   = 7,
 133         .lower_margin   = 5,
 134         .hsync_len      = 3,
 135         .vsync_len      = 1,
 136         .xres           = 800,
 137         .yres           = 480,
 138 };
 139
 140 static struct s3c_fb_platdata real6410_lcd_pdata[] __initdata = {
 141         {
 142                 .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
 143                 .vtiming        = &real6410_lcd_type0_timing,
 144                 .win[0]         = &real6410_lcd_type0_fb_win,
 145                 .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
 146                 .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
 147         }, {
 148                 .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
 149                 .vtiming        = &real6410_lcd_type1_timing,
 150                 .win[0]         = &real6410_lcd_type1_fb_win,
 151                 .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
 152                 .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
 153         },
 154         { },
 155 };
 156
 157 static struct mtd_partition real6410_nand_part[] = {
 158         [0] = {
 159                 .name   = "uboot",
 160                 .size   = SZ_1M,
 161                 .offset = 0,
 162         },
 163         [1] = {
 164                 .name   = "kernel",
 165                 .size   = SZ_2M,
 166                 .offset = SZ_1M,
 167         },
 168         [2] = {
 169                 .name   = "rootfs",
 170                 .size   = MTDPART_SIZ_FULL,
 171                 .offset = SZ_1M + SZ_2M,
 172         },
 173 };
 174
 175 static struct s3c2410_nand_set real6410_nand_sets[] = {
 176         [0] = {
 177                 .name           = "nand",
 178                 .nr_chips       = 1,
 179                 .nr_partitions  = ARRAY_SIZE(real6410_nand_part),
 180                 .partitions     = real6410_nand_part,
 181         },
 182 };
 183
 184 static struct s3c2410_platform_nand real6410_nand_info = {
 185         .tacls          = 25,
 186         .twrph0         = 55,
 187         .twrph1         = 40,
 188         .nr_sets        = ARRAY_SIZE(real6410_nand_sets),
 189         .sets           = real6410_nand_sets,
 190         .ecc_mode       = NAND_ECC_SOFT,
 191 };
 192
 193 static struct platform_device *real6410_devices[] __initdata = {
 194         &real6410_device_eth,
 195         &s3c_device_hsmmc0,
 196         &s3c_device_hsmmc1,
 197         &s3c_device_fb,
 198         &s3c_device_nand,
 199         &s3c_device_adc,
 200         &s3c_device_ohci,
 201 };
 202
 203 static void __init real6410_map_io(void)
 204 {
 205         u32 tmp;
 206
 207         s3c64xx_init_io(NULL, 0);
 208         s3c24xx_init_clocks(12000000);
 209         s3c24xx_init_uarts(real6410_uartcfgs, ARRAY_SIZE(real6410_uartcfgs));
 210         samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 211
 212         /* set the LCD type */
 213         tmp = __raw_readl(S3C64XX_SPCON);
 214         tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
 215         tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
 216         __raw_writel(tmp, S3C64XX_SPCON);
 217
 218         /* remove the LCD bypass */
 219         tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
 220         tmp &= ~MIFPCON_LCD_BYPASS;
 221         __raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
 222 }
 223
 224 /*
 225  * real6410_features string
 226  *
 227  * 0-9 LCD configuration
 228  *
 229  */
 230 static char real6410_features_str[12] __initdata = "0";
 231
 232 static int __init real6410_features_setup(char *str)
 233 {
 234         if (str)
 235                 strlcpy(real6410_features_str, str,
 236                         sizeof(real6410_features_str));
 237         return 1;
 238 }
 239
 240 __setup("real6410=", real6410_features_setup);
 241
 242 #define FEATURE_SCREEN (1 << 0)
 243
 244 struct real6410_features_t {
 245         int done;
 246         int lcd_index;
 247 };
 248
 249 static void real6410_parse_features(
 250                 struct real6410_features_t *features,
 251                 const char *features_str)
 252 {
 253         const char *fp = features_str;
 254
 255         features->done = 0;
 256         features->lcd_index = 0;
 257
 258         while (*fp) {
 259                 char f = *fp++;
 260
 261                 switch (f) {
 262                 case '0'...'9': /* tft screen */
 263                         if (features->done & FEATURE_SCREEN) {
 264                                 printk(KERN_INFO "REAL6410: '%c' ignored, "
 265                                         "screen type already set\n", f);
 266                         } else {
 267                                 int li = f - '0';
 268                                 if (li >= ARRAY_SIZE(real6410_lcd_pdata))
 269                                         printk(KERN_INFO "REAL6410: '%c' out "
 270                                                 "of range LCD mode\n", f);
 271                                 else {
 272                                         features->lcd_index = li;
 273                                 }
 274                         }
 275                         features->done |= FEATURE_SCREEN;
 276                         break;
 277                 }
 278         }
 279 }
 280
 281 static void __init real6410_machine_init(void)
 282 {
 283         u32 cs1;
 284         struct real6410_features_t features = { 0 };
 285
 286         printk(KERN_INFO "REAL6410: Option string real6410=%s\n",
 287                         real6410_features_str);
 288
 289         /* Parse the feature string */
 290         real6410_parse_features(&features, real6410_features_str);
 291
 292         printk(KERN_INFO "REAL6410: selected LCD display is %dx%d\n",
 293                 real6410_lcd_pdata[features.lcd_index].win[0]->xres,
 294                 real6410_lcd_pdata[features.lcd_index].win[0]->yres);
 295
 296         s3c_fb_set_platdata(&real6410_lcd_pdata[features.lcd_index]);
 297         s3c_nand_set_platdata(&real6410_nand_info);
 298         s3c64xx_ts_set_platdata(NULL);
 299
 300         /* configure nCS1 width to 16 bits */
 301
 302         cs1 = __raw_readl(S3C64XX_SROM_BW) &
 303                 ~(S3C64XX_SROM_BW__CS_MASK << S3C64XX_SROM_BW__NCS1__SHIFT);
 304         cs1 |= ((1 << S3C64XX_SROM_BW__DATAWIDTH__SHIFT) |
 305                 (1 << S3C64XX_SROM_BW__WAITENABLE__SHIFT) |
 306                 (1 << S3C64XX_SROM_BW__BYTEENABLE__SHIFT)) <<
 307                         S3C64XX_SROM_BW__NCS1__SHIFT;
 308         __raw_writel(cs1, S3C64XX_SROM_BW);
 309
 310         /* set timing for nCS1 suitable for ethernet chip */
 311
 312         __raw_writel((0 << S3C64XX_SROM_BCX__PMC__SHIFT) |
 313                 (6 << S3C64XX_SROM_BCX__TACP__SHIFT) |
 314                 (4 << S3C64XX_SROM_BCX__TCAH__SHIFT) |
 315                 (1 << S3C64XX_SROM_BCX__TCOH__SHIFT) |
 316                 (13 << S3C64XX_SROM_BCX__TACC__SHIFT) |
 317                 (4 << S3C64XX_SROM_BCX__TCOS__SHIFT) |
 318                 (0 << S3C64XX_SROM_BCX__TACS__SHIFT), S3C64XX_SROM_BC1);
 319
 320         gpio_request(S3C64XX_GPF(15), "LCD power");
 321
 322         platform_add_devices(real6410_devices, ARRAY_SIZE(real6410_devices));
 323 }
 324
 325 MACHINE_START(REAL6410, "REAL6410")
 326         /* Maintainer: Darius Augulis <augulis.darius@gmail.com> */
 327         .atag_offset    = 0x100,
 328         .nr_irqs        = S3C64XX_NR_IRQS,
 329         .init_irq       = s3c6410_init_irq,
 330         .map_io         = real6410_map_io,
 331         .init_machine   = real6410_machine_init,
 332         .init_time      = samsung_timer_init,
 333 MACHINE_END