linux/arch/arm/mach-s3c64xx/mach-mini6410.c
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   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-fb.h>
  33#include <mach/regs-gpio.h>
  34#include <mach/regs-modem.h>
  35#include <mach/regs-srom.h>
  36#include <mach/s3c6410.h>
  37
  38#include <plat/adc.h>
  39#include <plat/cpu.h>
  40#include <plat/devs.h>
  41#include <plat/fb.h>
  42#include <plat/nand.h>
  43#include <plat/regs-serial.h>
  44#include <plat/ts.h>
  45
  46#include <video/platform_lcd.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
  52static 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
  85static struct resource mini6410_dm9k_resource[] = {
  86        [0] = {
  87                .start  = S3C64XX_PA_XM0CSN1,
  88                .end    = S3C64XX_PA_XM0CSN1 + 1,
  89                .flags  = IORESOURCE_MEM
  90        },
  91        [1] = {
  92                .start  = S3C64XX_PA_XM0CSN1 + 4,
  93                .end    = S3C64XX_PA_XM0CSN1 + 5,
  94                .flags  = IORESOURCE_MEM
  95        },
  96        [2] = {
  97                .start  = S3C_EINT(7),
  98                .end    = S3C_EINT(7),
  99                .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL
 100        }
 101};
 102
 103static struct dm9000_plat_data mini6410_dm9k_pdata = {
 104        .flags          = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
 105};
 106
 107static struct platform_device mini6410_device_eth = {
 108        .name           = "dm9000",
 109        .id             = -1,
 110        .num_resources  = ARRAY_SIZE(mini6410_dm9k_resource),
 111        .resource       = mini6410_dm9k_resource,
 112        .dev            = {
 113                .platform_data  = &mini6410_dm9k_pdata,
 114        },
 115};
 116
 117static struct mtd_partition mini6410_nand_part[] = {
 118        [0] = {
 119                .name   = "uboot",
 120                .size   = SZ_1M,
 121                .offset = 0,
 122        },
 123        [1] = {
 124                .name   = "kernel",
 125                .size   = SZ_2M,
 126                .offset = SZ_1M,
 127        },
 128        [2] = {
 129                .name   = "rootfs",
 130                .size   = MTDPART_SIZ_FULL,
 131                .offset = SZ_1M + SZ_2M,
 132        },
 133};
 134
 135static struct s3c2410_nand_set mini6410_nand_sets[] = {
 136        [0] = {
 137                .name           = "nand",
 138                .nr_chips       = 1,
 139                .nr_partitions  = ARRAY_SIZE(mini6410_nand_part),
 140                .partitions     = mini6410_nand_part,
 141        },
 142};
 143
 144static struct s3c2410_platform_nand mini6410_nand_info = {
 145        .tacls          = 25,
 146        .twrph0         = 55,
 147        .twrph1         = 40,
 148        .nr_sets        = ARRAY_SIZE(mini6410_nand_sets),
 149        .sets           = mini6410_nand_sets,
 150};
 151
 152static struct s3c_fb_pd_win mini6410_fb_win[] = {
 153        {
 154                .win_mode       = {     /* 4.3" 480x272 */
 155                        .left_margin    = 3,
 156                        .right_margin   = 2,
 157                        .upper_margin   = 1,
 158                        .lower_margin   = 1,
 159                        .hsync_len      = 40,
 160                        .vsync_len      = 1,
 161                        .xres           = 480,
 162                        .yres           = 272,
 163                },
 164                .max_bpp        = 32,
 165                .default_bpp    = 16,
 166        }, {
 167                .win_mode       = {     /* 7.0" 800x480 */
 168                        .left_margin    = 8,
 169                        .right_margin   = 13,
 170                        .upper_margin   = 7,
 171                        .lower_margin   = 5,
 172                        .hsync_len      = 3,
 173                        .vsync_len      = 1,
 174                        .xres           = 800,
 175                        .yres           = 480,
 176                },
 177                .max_bpp        = 32,
 178                .default_bpp    = 16,
 179        },
 180};
 181
 182static struct s3c_fb_platdata mini6410_lcd_pdata __initdata = {
 183        .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
 184        .win[0]         = &mini6410_fb_win[0],
 185        .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
 186        .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
 187};
 188
 189static void mini6410_lcd_power_set(struct plat_lcd_data *pd,
 190                                   unsigned int power)
 191{
 192        if (power)
 193                gpio_direction_output(S3C64XX_GPE(0), 1);
 194        else
 195                gpio_direction_output(S3C64XX_GPE(0), 0);
 196}
 197
 198static struct plat_lcd_data mini6410_lcd_power_data = {
 199        .set_power      = mini6410_lcd_power_set,
 200};
 201
 202static struct platform_device mini6410_lcd_powerdev = {
 203        .name                   = "platform-lcd",
 204        .dev.parent             = &s3c_device_fb.dev,
 205        .dev.platform_data      = &mini6410_lcd_power_data,
 206};
 207
 208static struct s3c2410_ts_mach_info s3c_ts_platform __initdata = {
 209        .delay                  = 10000,
 210        .presc                  = 49,
 211        .oversampling_shift     = 2,
 212};
 213
 214static struct platform_device *mini6410_devices[] __initdata = {
 215        &mini6410_device_eth,
 216        &s3c_device_hsmmc0,
 217        &s3c_device_hsmmc1,
 218        &s3c_device_ohci,
 219        &s3c_device_nand,
 220        &s3c_device_fb,
 221        &mini6410_lcd_powerdev,
 222        &s3c_device_adc,
 223        &s3c_device_ts,
 224};
 225
 226static void __init mini6410_map_io(void)
 227{
 228        u32 tmp;
 229
 230        s3c64xx_init_io(NULL, 0);
 231        s3c24xx_init_clocks(12000000);
 232        s3c24xx_init_uarts(mini6410_uartcfgs, ARRAY_SIZE(mini6410_uartcfgs));
 233
 234        /* set the LCD type */
 235        tmp = __raw_readl(S3C64XX_SPCON);
 236        tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
 237        tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
 238        __raw_writel(tmp, S3C64XX_SPCON);
 239
 240        /* remove the LCD bypass */
 241        tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
 242        tmp &= ~MIFPCON_LCD_BYPASS;
 243        __raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
 244}
 245
 246/*
 247 * mini6410_features string
 248 *
 249 * 0-9 LCD configuration
 250 *
 251 */
 252static char mini6410_features_str[12] __initdata = "0";
 253
 254static int __init mini6410_features_setup(char *str)
 255{
 256        if (str)
 257                strlcpy(mini6410_features_str, str,
 258                        sizeof(mini6410_features_str));
 259        return 1;
 260}
 261
 262__setup("mini6410=", mini6410_features_setup);
 263
 264#define FEATURE_SCREEN (1 << 0)
 265
 266struct mini6410_features_t {
 267        int done;
 268        int lcd_index;
 269};
 270
 271static void mini6410_parse_features(
 272                struct mini6410_features_t *features,
 273                const char *features_str)
 274{
 275        const char *fp = features_str;
 276
 277        features->done = 0;
 278        features->lcd_index = 0;
 279
 280        while (*fp) {
 281                char f = *fp++;
 282
 283                switch (f) {
 284                case '0'...'9': /* tft screen */
 285                        if (features->done & FEATURE_SCREEN) {
 286                                printk(KERN_INFO "MINI6410: '%c' ignored, "
 287                                        "screen type already set\n", f);
 288                        } else {
 289                                int li = f - '0';
 290                                if (li >= ARRAY_SIZE(mini6410_fb_win))
 291                                        printk(KERN_INFO "MINI6410: '%c' out "
 292                                                "of range LCD mode\n", f);
 293                                else {
 294                                        features->lcd_index = li;
 295                                }
 296                        }
 297                        features->done |= FEATURE_SCREEN;
 298                        break;
 299                }
 300        }
 301}
 302
 303static void __init mini6410_machine_init(void)
 304{
 305        u32 cs1;
 306        struct mini6410_features_t features = { 0 };
 307
 308        printk(KERN_INFO "MINI6410: Option string mini6410=%s\n",
 309                        mini6410_features_str);
 310
 311        /* Parse the feature string */
 312        mini6410_parse_features(&features, mini6410_features_str);
 313
 314        mini6410_lcd_pdata.win[0] = &mini6410_fb_win[features.lcd_index];
 315
 316        printk(KERN_INFO "MINI6410: selected LCD display is %dx%d\n",
 317                mini6410_lcd_pdata.win[0]->win_mode.xres,
 318                mini6410_lcd_pdata.win[0]->win_mode.yres);
 319
 320        s3c_nand_set_platdata(&mini6410_nand_info);
 321        s3c_fb_set_platdata(&mini6410_lcd_pdata);
 322        s3c24xx_ts_set_platdata(&s3c_ts_platform);
 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
 350MACHINE_START(MINI6410, "MINI6410")
 351        /* Maintainer: Darius Augulis <augulis.darius@gmail.com> */
 352        .boot_params    = S3C64XX_PA_SDRAM + 0x100,
 353        .init_irq       = s3c6410_init_irq,
 354        .map_io         = mini6410_map_io,
 355        .init_machine   = mini6410_machine_init,
 356        .timer          = &s3c24xx_timer,
 357MACHINE_END
 358