linux/arch/arm/mach-s3c/mach-qt2410.c
<<
>>
Prefs
   1// SPDX-License-Identifier: GPL-2.0+
   2//
   3// Copyright (C) 2006 by OpenMoko, Inc.
   4// Author: Harald Welte <laforge@openmoko.org>
   5// All rights reserved.
   6
   7#include <linux/kernel.h>
   8#include <linux/types.h>
   9#include <linux/interrupt.h>
  10#include <linux/list.h>
  11#include <linux/timer.h>
  12#include <linux/init.h>
  13#include <linux/gpio.h>
  14#include <linux/gpio/machine.h>
  15#include <linux/device.h>
  16#include <linux/platform_device.h>
  17#include <linux/serial_core.h>
  18#include <linux/serial_s3c.h>
  19#include <linux/spi/spi.h>
  20#include <linux/spi/spi_gpio.h>
  21#include <linux/io.h>
  22#include <linux/mtd/mtd.h>
  23#include <linux/mtd/rawnand.h>
  24#include <linux/mtd/nand-ecc-sw-hamming.h>
  25#include <linux/mtd/partitions.h>
  26
  27#include <asm/mach/arch.h>
  28#include <asm/mach/map.h>
  29#include <asm/mach/irq.h>
  30
  31#include <asm/irq.h>
  32#include <asm/mach-types.h>
  33
  34#include <linux/platform_data/leds-s3c24xx.h>
  35#include <linux/platform_data/fb-s3c2410.h>
  36#include <linux/platform_data/mtd-nand-s3c2410.h>
  37#include <linux/platform_data/usb-s3c2410_udc.h>
  38#include <linux/platform_data/i2c-s3c2410.h>
  39#include "gpio-samsung.h"
  40
  41#include "gpio-cfg.h"
  42#include "devs.h"
  43#include "cpu.h"
  44#include "pm.h"
  45
  46#include "s3c24xx.h"
  47#include "common-smdk-s3c24xx.h"
  48
  49static struct map_desc qt2410_iodesc[] __initdata = {
  50        { 0xe0000000, __phys_to_pfn(S3C2410_CS3+0x01000000), SZ_1M, MT_DEVICE }
  51};
  52
  53#define UCON S3C2410_UCON_DEFAULT
  54#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
  55#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
  56
  57static struct s3c2410_uartcfg smdk2410_uartcfgs[] = {
  58        [0] = {
  59                .hwport      = 0,
  60                .flags       = 0,
  61                .ucon        = UCON,
  62                .ulcon       = ULCON,
  63                .ufcon       = UFCON,
  64        },
  65        [1] = {
  66                .hwport      = 1,
  67                .flags       = 0,
  68                .ucon        = UCON,
  69                .ulcon       = ULCON,
  70                .ufcon       = UFCON,
  71        },
  72        [2] = {
  73                .hwport      = 2,
  74                .flags       = 0,
  75                .ucon        = UCON,
  76                .ulcon       = ULCON,
  77                .ufcon       = UFCON,
  78        }
  79};
  80
  81/* LCD driver info */
  82
  83static struct s3c2410fb_display qt2410_lcd_cfg[] __initdata = {
  84        {
  85                /* Configuration for 640x480 SHARP LQ080V3DG01 */
  86                .lcdcon5 = S3C2410_LCDCON5_FRM565 |
  87                           S3C2410_LCDCON5_INVVLINE |
  88                           S3C2410_LCDCON5_INVVFRAME |
  89                           S3C2410_LCDCON5_PWREN |
  90                           S3C2410_LCDCON5_HWSWP,
  91
  92                .type           = S3C2410_LCDCON1_TFT,
  93                .width          = 640,
  94                .height         = 480,
  95
  96                .pixclock       = 40000, /* HCLK/4 */
  97                .xres           = 640,
  98                .yres           = 480,
  99                .bpp            = 16,
 100                .left_margin    = 44,
 101                .right_margin   = 116,
 102                .hsync_len      = 96,
 103                .upper_margin   = 19,
 104                .lower_margin   = 11,
 105                .vsync_len      = 15,
 106        },
 107        {
 108                /* Configuration for 480x640 toppoly TD028TTEC1 */
 109                .lcdcon5 = S3C2410_LCDCON5_FRM565 |
 110                           S3C2410_LCDCON5_INVVLINE |
 111                           S3C2410_LCDCON5_INVVFRAME |
 112                           S3C2410_LCDCON5_PWREN |
 113                           S3C2410_LCDCON5_HWSWP,
 114
 115                .type           = S3C2410_LCDCON1_TFT,
 116                .width          = 480,
 117                .height         = 640,
 118                .pixclock       = 40000, /* HCLK/4 */
 119                .xres           = 480,
 120                .yres           = 640,
 121                .bpp            = 16,
 122                .left_margin    = 8,
 123                .right_margin   = 24,
 124                .hsync_len      = 8,
 125                .upper_margin   = 2,
 126                .lower_margin   = 4,
 127                .vsync_len      = 2,
 128        },
 129        {
 130                /* Config for 240x320 LCD */
 131                .lcdcon5 = S3C2410_LCDCON5_FRM565 |
 132                           S3C2410_LCDCON5_INVVLINE |
 133                           S3C2410_LCDCON5_INVVFRAME |
 134                           S3C2410_LCDCON5_PWREN |
 135                           S3C2410_LCDCON5_HWSWP,
 136
 137                .type           = S3C2410_LCDCON1_TFT,
 138                .width          = 240,
 139                .height         = 320,
 140                .pixclock       = 100000, /* HCLK/10 */
 141                .xres           = 240,
 142                .yres           = 320,
 143                .bpp            = 16,
 144                .left_margin    = 13,
 145                .right_margin   = 8,
 146                .hsync_len      = 4,
 147                .upper_margin   = 2,
 148                .lower_margin   = 7,
 149                .vsync_len      = 4,
 150        },
 151};
 152
 153
 154static struct s3c2410fb_mach_info qt2410_fb_info __initdata = {
 155        .displays       = qt2410_lcd_cfg,
 156        .num_displays   = ARRAY_SIZE(qt2410_lcd_cfg),
 157        .default_display = 0,
 158
 159        .lpcsel         = ((0xCE6) & ~7) | 1<<4,
 160};
 161
 162/* CS8900 */
 163
 164static struct resource qt2410_cs89x0_resources[] = {
 165        [0] = DEFINE_RES_MEM(0x19000000, 17),
 166        [1] = DEFINE_RES_IRQ(IRQ_EINT9),
 167};
 168
 169static struct platform_device qt2410_cs89x0 = {
 170        .name           = "cirrus-cs89x0",
 171        .num_resources  = ARRAY_SIZE(qt2410_cs89x0_resources),
 172        .resource       = qt2410_cs89x0_resources,
 173};
 174
 175/* LED */
 176
 177static struct gpiod_lookup_table qt2410_led_gpio_table = {
 178        .dev_id = "s3c24xx_led.0",
 179        .table = {
 180                GPIO_LOOKUP("GPB", 0, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN),
 181                { },
 182        },
 183};
 184
 185static struct s3c24xx_led_platdata qt2410_pdata_led = {
 186        .name           = "led",
 187        .def_trigger    = "timer",
 188};
 189
 190static struct platform_device qt2410_led = {
 191        .name           = "s3c24xx_led",
 192        .id             = 0,
 193        .dev            = {
 194                .platform_data = &qt2410_pdata_led,
 195        },
 196};
 197
 198/* SPI */
 199
 200static struct spi_gpio_platform_data spi_gpio_cfg = {
 201        .num_chipselect = 1,
 202};
 203
 204static struct platform_device qt2410_spi = {
 205        .name           = "spi_gpio",
 206        .id             = 1,
 207        .dev.platform_data = &spi_gpio_cfg,
 208};
 209
 210static struct gpiod_lookup_table qt2410_spi_gpiod_table = {
 211        .dev_id         = "spi_gpio",
 212        .table          = {
 213                GPIO_LOOKUP("GPIOG", 7,
 214                            "sck", GPIO_ACTIVE_HIGH),
 215                GPIO_LOOKUP("GPIOG", 6,
 216                            "mosi", GPIO_ACTIVE_HIGH),
 217                GPIO_LOOKUP("GPIOG", 5,
 218                            "miso", GPIO_ACTIVE_HIGH),
 219                GPIO_LOOKUP("GPIOB", 5,
 220                            "cs", GPIO_ACTIVE_HIGH),
 221                { },
 222        },
 223};
 224
 225static struct gpiod_lookup_table qt2410_mmc_gpiod_table = {
 226        .dev_id = "s3c2410-sdi",
 227        .table = {
 228                /* bus pins */
 229                GPIO_LOOKUP_IDX("GPIOE",  5, "bus", 0, GPIO_ACTIVE_HIGH),
 230                GPIO_LOOKUP_IDX("GPIOE",  6, "bus", 1, GPIO_ACTIVE_HIGH),
 231                GPIO_LOOKUP_IDX("GPIOE",  7, "bus", 2, GPIO_ACTIVE_HIGH),
 232                GPIO_LOOKUP_IDX("GPIOE",  8, "bus", 3, GPIO_ACTIVE_HIGH),
 233                GPIO_LOOKUP_IDX("GPIOE",  9, "bus", 4, GPIO_ACTIVE_HIGH),
 234                GPIO_LOOKUP_IDX("GPIOE", 10, "bus", 5, GPIO_ACTIVE_HIGH),
 235                { },
 236        },
 237};
 238
 239/* Board devices */
 240
 241static struct platform_device *qt2410_devices[] __initdata = {
 242        &s3c_device_ohci,
 243        &s3c_device_lcd,
 244        &s3c_device_wdt,
 245        &s3c_device_i2c0,
 246        &s3c_device_iis,
 247        &s3c_device_sdi,
 248        &s3c_device_usbgadget,
 249        &qt2410_spi,
 250        &qt2410_cs89x0,
 251        &qt2410_led,
 252};
 253
 254static struct mtd_partition __initdata qt2410_nand_part[] = {
 255        [0] = {
 256                .name   = "U-Boot",
 257                .size   = 0x30000,
 258                .offset = 0,
 259        },
 260        [1] = {
 261                .name   = "U-Boot environment",
 262                .offset = 0x30000,
 263                .size   = 0x4000,
 264        },
 265        [2] = {
 266                .name   = "kernel",
 267                .offset = 0x34000,
 268                .size   = SZ_2M,
 269        },
 270        [3] = {
 271                .name   = "initrd",
 272                .offset = 0x234000,
 273                .size   = SZ_4M,
 274        },
 275        [4] = {
 276                .name   = "jffs2",
 277                .offset = 0x634000,
 278                .size   = 0x39cc000,
 279        },
 280};
 281
 282static struct s3c2410_nand_set __initdata qt2410_nand_sets[] = {
 283        [0] = {
 284                .name           = "NAND",
 285                .nr_chips       = 1,
 286                .nr_partitions  = ARRAY_SIZE(qt2410_nand_part),
 287                .partitions     = qt2410_nand_part,
 288        },
 289};
 290
 291/* choose a set of timings which should suit most 512Mbit
 292 * chips and beyond.
 293 */
 294
 295static struct s3c2410_platform_nand __initdata qt2410_nand_info = {
 296        .tacls          = 20,
 297        .twrph0         = 60,
 298        .twrph1         = 20,
 299        .nr_sets        = ARRAY_SIZE(qt2410_nand_sets),
 300        .sets           = qt2410_nand_sets,
 301        .engine_type    = NAND_ECC_ENGINE_TYPE_SOFT,
 302};
 303
 304/* UDC */
 305
 306static struct s3c2410_udc_mach_info qt2410_udc_cfg = {
 307};
 308
 309static char tft_type = 's';
 310
 311static int __init qt2410_tft_setup(char *str)
 312{
 313        tft_type = str[0];
 314        return 1;
 315}
 316
 317__setup("tft=", qt2410_tft_setup);
 318
 319static void __init qt2410_map_io(void)
 320{
 321        s3c24xx_init_io(qt2410_iodesc, ARRAY_SIZE(qt2410_iodesc));
 322        s3c24xx_init_uarts(smdk2410_uartcfgs, ARRAY_SIZE(smdk2410_uartcfgs));
 323        s3c24xx_set_timer_source(S3C24XX_PWM3, S3C24XX_PWM4);
 324}
 325
 326static void __init qt2410_init_time(void)
 327{
 328        s3c2410_init_clocks(12000000);
 329        s3c24xx_timer_init();
 330}
 331
 332static void __init qt2410_machine_init(void)
 333{
 334        s3c_nand_set_platdata(&qt2410_nand_info);
 335
 336        switch (tft_type) {
 337        case 'p': /* production */
 338                qt2410_fb_info.default_display = 1;
 339                break;
 340        case 'b': /* big */
 341                qt2410_fb_info.default_display = 0;
 342                break;
 343        case 's': /* small */
 344        default:
 345                qt2410_fb_info.default_display = 2;
 346                break;
 347        }
 348        s3c24xx_fb_set_platdata(&qt2410_fb_info);
 349
 350        /* set initial state of the LED GPIO */
 351        WARN_ON(gpio_request_one(S3C2410_GPB(0), GPIOF_OUT_INIT_HIGH, NULL));
 352        gpio_free(S3C2410_GPB(0));
 353
 354        s3c24xx_udc_set_platdata(&qt2410_udc_cfg);
 355        s3c_i2c0_set_platdata(NULL);
 356
 357        /* Configure the I2S pins (GPE0...GPE4) in correct mode */
 358        s3c_gpio_cfgall_range(S3C2410_GPE(0), 5, S3C_GPIO_SFN(2),
 359                              S3C_GPIO_PULL_NONE);
 360        gpiod_add_lookup_table(&qt2410_spi_gpiod_table);
 361        s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
 362        gpiod_add_lookup_table(&qt2410_led_gpio_table);
 363        gpiod_add_lookup_table(&qt2410_mmc_gpiod_table);
 364        platform_add_devices(qt2410_devices, ARRAY_SIZE(qt2410_devices));
 365        s3c_pm_init();
 366}
 367
 368MACHINE_START(QT2410, "QT2410")
 369        .atag_offset    = 0x100,
 370        .map_io         = qt2410_map_io,
 371        .init_irq       = s3c2410_init_irq,
 372        .init_machine   = qt2410_machine_init,
 373        .init_time      = qt2410_init_time,
 374MACHINE_END
 375