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

   1 /* linux/arch/arm/mach-s3c64xx/mach-mini6410.c
   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  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  *
  13 */
  14
  15 #include <linux/init.h>
  16 #include <linux/interrupt.h>
  17 #include <linux/fb.h>
  18 #include <linux/gpio.h>
  19 #include <linux/kernel.h>
  20 #include <linux/list.h>
  21 #include <linux/dm9000.h>
  22 #include <linux/mtd/mtd.h>
  23 #include <linux/mtd/partitions.h>
  24 #include <linux/serial_core.h>
  25 #include <linux/types.h>
  26
  27 #include <asm/mach-types.h>
  28 #include <asm/mach/arch.h>
  29 #include <asm/mach/map.h>
  30
  31 #include <mach/map.h>
  32 #include <mach/regs-gpio.h>
  33
  34 #include <plat/adc.h>
  35 #include <plat/cpu.h>
  36 #include <plat/devs.h>
  37 #include <plat/fb.h>
  38 #include <linux/platform_data/mtd-nand-s3c2410.h>
  39 #include <plat/regs-serial.h>
  40 #include <linux/platform_data/touchscreen-s3c2410.h>
  41
  42 #include <video/platform_lcd.h>
  43 #include <video/samsung_fimd.h>
  44
  45 #include "common.h"
  46 #include "regs-modem.h"
  47 #include "regs-srom.h"
  48
  49 #define UCON S3C2410_UCON_DEFAULT
  50 #define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB)
  51 #define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
  52
  53 static struct s3c2410_uartcfg mini6410_uartcfgs[] __initdata = {
  54         [0] = {
  55                 .hwport = 0,
  56                 .flags  = 0,
  57                 .ucon   = UCON,
  58                 .ulcon  = ULCON,
  59                 .ufcon  = UFCON,
  60         },
  61         [1] = {
  62                 .hwport = 1,
  63                 .flags  = 0,
  64                 .ucon   = UCON,
  65                 .ulcon  = ULCON,
  66                 .ufcon  = UFCON,
  67         },
  68         [2] = {
  69                 .hwport = 2,
  70                 .flags  = 0,
  71                 .ucon   = UCON,
  72                 .ulcon  = ULCON,
  73                 .ufcon  = UFCON,
  74         },
  75         [3] = {
  76                 .hwport = 3,
  77                 .flags  = 0,
  78                 .ucon   = UCON,
  79                 .ulcon  = ULCON,
  80                 .ufcon  = UFCON,
  81         },
  82 };
  83
  84 /* DM9000AEP 10/100 ethernet controller */
  85
  86 static struct resource mini6410_dm9k_resource[] = {
  87         [0] = DEFINE_RES_MEM(S3C64XX_PA_XM0CSN1, 2),
  88         [1] = DEFINE_RES_MEM(S3C64XX_PA_XM0CSN1 + 4, 2),
  89         [2] = DEFINE_RES_NAMED(S3C_EINT(7), 1, NULL, IORESOURCE_IRQ \
  90                                         | IORESOURCE_IRQ_HIGHLEVEL),
  91 };
  92
  93 static struct dm9000_plat_data mini6410_dm9k_pdata = {
  94         .flags          = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
  95 };
  96
  97 static struct platform_device mini6410_device_eth = {
  98         .name           = "dm9000",
  99         .id             = -1,
 100         .num_resources  = ARRAY_SIZE(mini6410_dm9k_resource),
 101         .resource       = mini6410_dm9k_resource,
 102         .dev            = {
 103                 .platform_data  = &mini6410_dm9k_pdata,
 104         },
 105 };
 106
 107 static struct mtd_partition mini6410_nand_part[] = {
 108         [0] = {
 109                 .name   = "uboot",
 110                 .size   = SZ_1M,
 111                 .offset = 0,
 112         },
 113         [1] = {
 114                 .name   = "kernel",
 115                 .size   = SZ_2M,
 116                 .offset = SZ_1M,
 117         },
 118         [2] = {
 119                 .name   = "rootfs",
 120                 .size   = MTDPART_SIZ_FULL,
 121                 .offset = SZ_1M + SZ_2M,
 122         },
 123 };
 124
 125 static struct s3c2410_nand_set mini6410_nand_sets[] = {
 126         [0] = {
 127                 .name           = "nand",
 128                 .nr_chips       = 1,
 129                 .nr_partitions  = ARRAY_SIZE(mini6410_nand_part),
 130                 .partitions     = mini6410_nand_part,
 131         },
 132 };
 133
 134 static struct s3c2410_platform_nand mini6410_nand_info = {
 135         .tacls          = 25,
 136         .twrph0         = 55,
 137         .twrph1         = 40,
 138         .nr_sets        = ARRAY_SIZE(mini6410_nand_sets),
 139         .sets           = mini6410_nand_sets,
 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 platform_device *mini6410_devices[] __initdata = {
 217         &mini6410_device_eth,
 218         &s3c_device_hsmmc0,
 219         &s3c_device_hsmmc1,
 220         &s3c_device_ohci,
 221         &s3c_device_nand,
 222         &s3c_device_fb,
 223         &mini6410_lcd_powerdev,
 224         &s3c_device_adc,
 225         &s3c_device_ts,
 226 };
 227
 228 static void __init mini6410_map_io(void)
 229 {
 230         u32 tmp;
 231
 232         s3c64xx_init_io(NULL, 0);
 233         s3c24xx_init_clocks(12000000);
 234         s3c24xx_init_uarts(mini6410_uartcfgs, ARRAY_SIZE(mini6410_uartcfgs));
 235
 236         /* set the LCD type */
 237         tmp = __raw_readl(S3C64XX_SPCON);
 238         tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
 239         tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
 240         __raw_writel(tmp, S3C64XX_SPCON);
 241
 242         /* remove the LCD bypass */
 243         tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
 244         tmp &= ~MIFPCON_LCD_BYPASS;
 245         __raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
 246 }
 247
 248 /*
 249  * mini6410_features string
 250  *
 251  * 0-9 LCD configuration
 252  *
 253  */
 254 static char mini6410_features_str[12] __initdata = "0";
 255
 256 static int __init mini6410_features_setup(char *str)
 257 {
 258         if (str)
 259                 strlcpy(mini6410_features_str, str,
 260                         sizeof(mini6410_features_str));
 261         return 1;
 262 }
 263
 264 __setup("mini6410=", mini6410_features_setup);
 265
 266 #define FEATURE_SCREEN (1 << 0)
 267
 268 struct mini6410_features_t {
 269         int done;
 270         int lcd_index;
 271 };
 272
 273 static void mini6410_parse_features(
 274                 struct mini6410_features_t *features,
 275                 const char *features_str)
 276 {
 277         const char *fp = features_str;
 278
 279         features->done = 0;
 280         features->lcd_index = 0;
 281
 282         while (*fp) {
 283                 char f = *fp++;
 284
 285                 switch (f) {
 286                 case '0'...'9': /* tft screen */
 287                         if (features->done & FEATURE_SCREEN) {
 288                                 printk(KERN_INFO "MINI6410: '%c' ignored, "
 289                                         "screen type already set\n", f);
 290                         } else {
 291                                 int li = f - '0';
 292                                 if (li >= ARRAY_SIZE(mini6410_lcd_pdata))
 293                                         printk(KERN_INFO "MINI6410: '%c' out "
 294                                                 "of range LCD mode\n", f);
 295                                 else {
 296                                         features->lcd_index = li;
 297                                 }
 298                         }
 299                         features->done |= FEATURE_SCREEN;
 300                         break;
 301                 }
 302         }
 303 }
 304
 305 static void __init mini6410_machine_init(void)
 306 {
 307         u32 cs1;
 308         struct mini6410_features_t features = { 0 };
 309
 310         printk(KERN_INFO "MINI6410: Option string mini6410=%s\n",
 311                         mini6410_features_str);
 312
 313         /* Parse the feature string */
 314         mini6410_parse_features(&features, mini6410_features_str);
 315
 316         printk(KERN_INFO "MINI6410: selected LCD display is %dx%d\n",
 317                 mini6410_lcd_pdata[features.lcd_index].win[0]->xres,
 318                 mini6410_lcd_pdata[features.lcd_index].win[0]->yres);
 319
 320         s3c_nand_set_platdata(&mini6410_nand_info);
 321         s3c_fb_set_platdata(&mini6410_lcd_pdata[features.lcd_index]);
 322         s3c24xx_ts_set_platdata(NULL);
 323
 324         /* configure nCS1 width to 16 bits */
 325
 326         cs1 = __raw_readl(S3C64XX_SROM_BW) &
 327                 ~(S3C64XX_SROM_BW__CS_MASK << S3C64XX_SROM_BW__NCS1__SHIFT);
 328         cs1 |= ((1 << S3C64XX_SROM_BW__DATAWIDTH__SHIFT) |
 329                 (1 << S3C64XX_SROM_BW__WAITENABLE__SHIFT) |
 330                 (1 << S3C64XX_SROM_BW__BYTEENABLE__SHIFT)) <<
 331                         S3C64XX_SROM_BW__NCS1__SHIFT;
 332         __raw_writel(cs1, S3C64XX_SROM_BW);
 333
 334         /* set timing for nCS1 suitable for ethernet chip */
 335
 336         __raw_writel((0 << S3C64XX_SROM_BCX__PMC__SHIFT) |
 337                 (6 << S3C64XX_SROM_BCX__TACP__SHIFT) |
 338                 (4 << S3C64XX_SROM_BCX__TCAH__SHIFT) |
 339                 (1 << S3C64XX_SROM_BCX__TCOH__SHIFT) |
 340                 (13 << S3C64XX_SROM_BCX__TACC__SHIFT) |
 341                 (4 << S3C64XX_SROM_BCX__TCOS__SHIFT) |
 342                 (0 << S3C64XX_SROM_BCX__TACS__SHIFT), S3C64XX_SROM_BC1);
 343
 344         gpio_request(S3C64XX_GPF(15), "LCD power");
 345         gpio_request(S3C64XX_GPE(0), "LCD power");
 346
 347         platform_add_devices(mini6410_devices, ARRAY_SIZE(mini6410_devices));
 348 }
 349
 350 MACHINE_START(MINI6410, "MINI6410")
 351         /* Maintainer: Darius Augulis <augulis.darius@gmail.com> */
 352         .atag_offset    = 0x100,
 353         .init_irq       = s3c6410_init_irq,
 354         .map_io         = mini6410_map_io,
 355         .init_machine   = mini6410_machine_init,
 356         .init_late      = s3c64xx_init_late,
 357         .init_time      = s3c24xx_timer_init,
 358         .restart        = s3c64xx_restart,
 359 MACHINE_END