arch/arm/mach-s3c/mach-qt2410.c

   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
  49 static 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
  57 static 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
  83 static 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
 154 static 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
 164 static struct resource qt2410_cs89x0_resources[] = {
 165         [0] = DEFINE_RES_MEM(0x19000000, 17),
 166         [1] = DEFINE_RES_IRQ(IRQ_EINT9),
 167 };
 168
 169 static 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
 177 static 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
 185 static struct s3c24xx_led_platdata qt2410_pdata_led = {
 186         .name           = "led",
 187         .def_trigger    = "timer",
 188 };
 189
 190 static 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
 200 static struct spi_gpio_platform_data spi_gpio_cfg = {
 201         .num_chipselect = 1,
 202 };
 203
 204 static struct platform_device qt2410_spi = {
 205         .name           = "spi_gpio",
 206         .id             = 1,
 207         .dev.platform_data = &spi_gpio_cfg,
 208 };
 209
 210 static 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
 225 static 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
 241 static 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
 254 static 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
 282 static 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
 295 static 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
 306 static struct s3c2410_udc_mach_info qt2410_udc_cfg = {
 307 };
 308
 309 static char tft_type = 's';
 310
 311 static 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
 319 static 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
 326 static void __init qt2410_init_time(void)
 327 {
 328         s3c2410_init_clocks(12000000);
 329         s3c24xx_timer_init();
 330 }
 331
 332 static 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
 368 MACHINE_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,
 374 MACHINE_END