mach-mini2440.c (20029B)
1// SPDX-License-Identifier: GPL-2.0 2// 3// Copyright (c) 2008 Ramax Lo <ramaxlo@gmail.com> 4// Based on mach-anubis.c by Ben Dooks <ben@simtec.co.uk> 5// and modifications by SBZ <sbz@spgui.org> and 6// Weibing <http://weibing.blogbus.com> and 7// Michel Pollet <buserror@gmail.com> 8// 9// For product information, visit https://code.google.com/p/mini2440/ 10 11#include <linux/kernel.h> 12#include <linux/types.h> 13#include <linux/interrupt.h> 14#include <linux/list.h> 15#include <linux/timer.h> 16#include <linux/init.h> 17#include <linux/gpio.h> 18#include <linux/gpio/machine.h> 19#include <linux/input.h> 20#include <linux/io.h> 21#include <linux/serial_core.h> 22#include <linux/serial_s3c.h> 23#include <linux/dm9000.h> 24#include <linux/property.h> 25#include <linux/platform_device.h> 26#include <linux/gpio_keys.h> 27#include <linux/i2c.h> 28#include <linux/mmc/host.h> 29 30#include <asm/mach/arch.h> 31#include <asm/mach/map.h> 32 33#include <linux/platform_data/fb-s3c2410.h> 34#include <asm/mach-types.h> 35 36#include "regs-gpio.h" 37#include <linux/platform_data/leds-s3c24xx.h> 38#include "irqs.h" 39#include "gpio-samsung.h" 40#include <linux/platform_data/mtd-nand-s3c2410.h> 41#include <linux/platform_data/i2c-s3c2410.h> 42#include <linux/platform_data/mmc-s3cmci.h> 43#include <linux/platform_data/usb-s3c2410_udc.h> 44 45#include <linux/mtd/mtd.h> 46#include <linux/mtd/rawnand.h> 47#include <linux/mtd/nand-ecc-sw-hamming.h> 48#include <linux/mtd/partitions.h> 49 50#include "gpio-cfg.h" 51#include "devs.h" 52#include "cpu.h" 53 54#include <sound/s3c24xx_uda134x.h> 55 56#include "s3c24xx.h" 57 58#define MACH_MINI2440_DM9K_BASE (S3C2410_CS4 + 0x300) 59 60static struct map_desc mini2440_iodesc[] __initdata = { 61 /* nothing to declare, move along */ 62}; 63 64#define UCON S3C2410_UCON_DEFAULT 65#define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB) 66#define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE) 67 68 69static struct s3c2410_uartcfg mini2440_uartcfgs[] __initdata = { 70 [0] = { 71 .hwport = 0, 72 .flags = 0, 73 .ucon = UCON, 74 .ulcon = ULCON, 75 .ufcon = UFCON, 76 }, 77 [1] = { 78 .hwport = 1, 79 .flags = 0, 80 .ucon = UCON, 81 .ulcon = ULCON, 82 .ufcon = UFCON, 83 }, 84 [2] = { 85 .hwport = 2, 86 .flags = 0, 87 .ucon = UCON, 88 .ulcon = ULCON, 89 .ufcon = UFCON, 90 }, 91}; 92 93/* USB device UDC support */ 94 95static struct s3c2410_udc_mach_info mini2440_udc_cfg __initdata = { 96 .pullup_pin = S3C2410_GPC(5), 97}; 98 99 100/* LCD timing and setup */ 101 102/* 103 * This macro simplifies the table bellow 104 */ 105#define _LCD_DECLARE(_clock, _xres, margin_left, margin_right, hsync, \ 106 _yres, margin_top, margin_bottom, vsync, refresh) \ 107 .width = _xres, \ 108 .xres = _xres, \ 109 .height = _yres, \ 110 .yres = _yres, \ 111 .left_margin = margin_left, \ 112 .right_margin = margin_right, \ 113 .upper_margin = margin_top, \ 114 .lower_margin = margin_bottom, \ 115 .hsync_len = hsync, \ 116 .vsync_len = vsync, \ 117 .pixclock = ((_clock*100000000000LL) / \ 118 ((refresh) * \ 119 (hsync + margin_left + _xres + margin_right) * \ 120 (vsync + margin_top + _yres + margin_bottom))), \ 121 .bpp = 16,\ 122 .type = (S3C2410_LCDCON1_TFT16BPP |\ 123 S3C2410_LCDCON1_TFT) 124 125static struct s3c2410fb_display mini2440_lcd_cfg[] __initdata = { 126 [0] = { /* mini2440 + 3.5" TFT + touchscreen */ 127 _LCD_DECLARE( 128 7, /* The 3.5 is quite fast */ 129 240, 21, 38, 6, /* x timing */ 130 320, 4, 4, 2, /* y timing */ 131 60), /* refresh rate */ 132 .lcdcon5 = (S3C2410_LCDCON5_FRM565 | 133 S3C2410_LCDCON5_INVVLINE | 134 S3C2410_LCDCON5_INVVFRAME | 135 S3C2410_LCDCON5_INVVDEN | 136 S3C2410_LCDCON5_PWREN), 137 }, 138 [1] = { /* mini2440 + 7" TFT + touchscreen */ 139 _LCD_DECLARE( 140 10, /* the 7" runs slower */ 141 800, 40, 40, 48, /* x timing */ 142 480, 29, 3, 3, /* y timing */ 143 50), /* refresh rate */ 144 .lcdcon5 = (S3C2410_LCDCON5_FRM565 | 145 S3C2410_LCDCON5_INVVLINE | 146 S3C2410_LCDCON5_INVVFRAME | 147 S3C2410_LCDCON5_PWREN), 148 }, 149 /* The VGA shield can outout at several resolutions. All share 150 * the same timings, however, anything smaller than 1024x768 151 * will only be displayed in the top left corner of a 1024x768 152 * XGA output unless you add optional dip switches to the shield. 153 * Therefore timings for other resolutions have been omitted here. 154 */ 155 [2] = { 156 _LCD_DECLARE( 157 10, 158 1024, 1, 2, 2, /* y timing */ 159 768, 200, 16, 16, /* x timing */ 160 24), /* refresh rate, maximum stable, 161 * tested with the FPGA shield 162 */ 163 .lcdcon5 = (S3C2410_LCDCON5_FRM565 | 164 S3C2410_LCDCON5_HWSWP), 165 }, 166 /* mini2440 + 3.5" TFT (LCD-W35i, LQ035Q1DG06 type) + touchscreen*/ 167 [3] = { 168 _LCD_DECLARE( 169 /* clock */ 170 7, 171 /* xres, margin_right, margin_left, hsync */ 172 320, 68, 66, 4, 173 /* yres, margin_top, margin_bottom, vsync */ 174 240, 4, 4, 9, 175 /* refresh rate */ 176 60), 177 .lcdcon5 = (S3C2410_LCDCON5_FRM565 | 178 S3C2410_LCDCON5_INVVDEN | 179 S3C2410_LCDCON5_INVVFRAME | 180 S3C2410_LCDCON5_INVVLINE | 181 S3C2410_LCDCON5_INVVCLK | 182 S3C2410_LCDCON5_HWSWP), 183 }, 184}; 185 186/* todo - put into gpio header */ 187 188#define S3C2410_GPCCON_MASK(x) (3 << ((x) * 2)) 189#define S3C2410_GPDCON_MASK(x) (3 << ((x) * 2)) 190 191static struct s3c2410fb_mach_info mini2440_fb_info __initdata = { 192 .displays = &mini2440_lcd_cfg[0], /* not constant! see init */ 193 .num_displays = 1, 194 .default_display = 0, 195 196 /* Enable VD[2..7], VD[10..15], VD[18..23] and VCLK, syncs, VDEN 197 * and disable the pull down resistors on pins we are using for LCD 198 * data. 199 */ 200 201 .gpcup = (0xf << 1) | (0x3f << 10), 202 203 .gpccon = (S3C2410_GPC1_VCLK | S3C2410_GPC2_VLINE | 204 S3C2410_GPC3_VFRAME | S3C2410_GPC4_VM | 205 S3C2410_GPC10_VD2 | S3C2410_GPC11_VD3 | 206 S3C2410_GPC12_VD4 | S3C2410_GPC13_VD5 | 207 S3C2410_GPC14_VD6 | S3C2410_GPC15_VD7), 208 209 .gpccon_mask = (S3C2410_GPCCON_MASK(1) | S3C2410_GPCCON_MASK(2) | 210 S3C2410_GPCCON_MASK(3) | S3C2410_GPCCON_MASK(4) | 211 S3C2410_GPCCON_MASK(10) | S3C2410_GPCCON_MASK(11) | 212 S3C2410_GPCCON_MASK(12) | S3C2410_GPCCON_MASK(13) | 213 S3C2410_GPCCON_MASK(14) | S3C2410_GPCCON_MASK(15)), 214 215 .gpccon_reg = S3C2410_GPCCON, 216 .gpcup_reg = S3C2410_GPCUP, 217 218 .gpdup = (0x3f << 2) | (0x3f << 10), 219 220 .gpdcon = (S3C2410_GPD2_VD10 | S3C2410_GPD3_VD11 | 221 S3C2410_GPD4_VD12 | S3C2410_GPD5_VD13 | 222 S3C2410_GPD6_VD14 | S3C2410_GPD7_VD15 | 223 S3C2410_GPD10_VD18 | S3C2410_GPD11_VD19 | 224 S3C2410_GPD12_VD20 | S3C2410_GPD13_VD21 | 225 S3C2410_GPD14_VD22 | S3C2410_GPD15_VD23), 226 227 .gpdcon_mask = (S3C2410_GPDCON_MASK(2) | S3C2410_GPDCON_MASK(3) | 228 S3C2410_GPDCON_MASK(4) | S3C2410_GPDCON_MASK(5) | 229 S3C2410_GPDCON_MASK(6) | S3C2410_GPDCON_MASK(7) | 230 S3C2410_GPDCON_MASK(10) | S3C2410_GPDCON_MASK(11)| 231 S3C2410_GPDCON_MASK(12) | S3C2410_GPDCON_MASK(13)| 232 S3C2410_GPDCON_MASK(14) | S3C2410_GPDCON_MASK(15)), 233 234 .gpdcon_reg = S3C2410_GPDCON, 235 .gpdup_reg = S3C2410_GPDUP, 236}; 237 238/* MMC/SD */ 239 240static struct s3c24xx_mci_pdata mini2440_mmc_cfg __initdata = { 241 .wprotect_invert = 1, 242 .set_power = s3c24xx_mci_def_set_power, 243 .ocr_avail = MMC_VDD_32_33|MMC_VDD_33_34, 244}; 245 246static struct gpiod_lookup_table mini2440_mmc_gpio_table = { 247 .dev_id = "s3c2410-sdi", 248 .table = { 249 /* Card detect S3C2410_GPG(8) */ 250 GPIO_LOOKUP("GPIOG", 8, "cd", GPIO_ACTIVE_LOW), 251 /* Write protect S3C2410_GPH(8) */ 252 GPIO_LOOKUP("GPIOH", 8, "wp", GPIO_ACTIVE_HIGH), 253 /* bus pins */ 254 GPIO_LOOKUP_IDX("GPIOE", 5, "bus", 0, GPIO_ACTIVE_HIGH), 255 GPIO_LOOKUP_IDX("GPIOE", 6, "bus", 1, GPIO_ACTIVE_HIGH), 256 GPIO_LOOKUP_IDX("GPIOE", 7, "bus", 2, GPIO_ACTIVE_HIGH), 257 GPIO_LOOKUP_IDX("GPIOE", 8, "bus", 3, GPIO_ACTIVE_HIGH), 258 GPIO_LOOKUP_IDX("GPIOE", 9, "bus", 4, GPIO_ACTIVE_HIGH), 259 GPIO_LOOKUP_IDX("GPIOE", 10, "bus", 5, GPIO_ACTIVE_HIGH), 260 { }, 261 }, 262}; 263 264/* NAND Flash on MINI2440 board */ 265 266static struct mtd_partition mini2440_default_nand_part[] __initdata = { 267 [0] = { 268 .name = "u-boot", 269 .size = SZ_256K, 270 .offset = 0, 271 }, 272 [1] = { 273 .name = "u-boot-env", 274 .size = SZ_128K, 275 .offset = SZ_256K, 276 }, 277 [2] = { 278 .name = "kernel", 279 /* 5 megabytes, for a kernel with no modules 280 * or a uImage with a ramdisk attached 281 */ 282 .size = 0x00500000, 283 .offset = SZ_256K + SZ_128K, 284 }, 285 [3] = { 286 .name = "root", 287 .offset = SZ_256K + SZ_128K + 0x00500000, 288 .size = MTDPART_SIZ_FULL, 289 }, 290}; 291 292static struct s3c2410_nand_set mini2440_nand_sets[] __initdata = { 293 [0] = { 294 .name = "nand", 295 .nr_chips = 1, 296 .nr_partitions = ARRAY_SIZE(mini2440_default_nand_part), 297 .partitions = mini2440_default_nand_part, 298 .flash_bbt = 1, /* we use u-boot to create a BBT */ 299 }, 300}; 301 302static struct s3c2410_platform_nand mini2440_nand_info __initdata = { 303 .tacls = 0, 304 .twrph0 = 25, 305 .twrph1 = 15, 306 .nr_sets = ARRAY_SIZE(mini2440_nand_sets), 307 .sets = mini2440_nand_sets, 308 .ignore_unset_ecc = 1, 309 .engine_type = NAND_ECC_ENGINE_TYPE_ON_HOST, 310}; 311 312/* DM9000AEP 10/100 ethernet controller */ 313 314static struct resource mini2440_dm9k_resource[] = { 315 [0] = DEFINE_RES_MEM(MACH_MINI2440_DM9K_BASE, 4), 316 [1] = DEFINE_RES_MEM(MACH_MINI2440_DM9K_BASE + 4, 4), 317 [2] = DEFINE_RES_NAMED(IRQ_EINT7, 1, NULL, IORESOURCE_IRQ 318 | IORESOURCE_IRQ_HIGHEDGE), 319}; 320 321/* 322 * The DM9000 has no eeprom, and it's MAC address is set by 323 * the bootloader before starting the kernel. 324 */ 325static struct dm9000_plat_data mini2440_dm9k_pdata = { 326 .flags = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM), 327}; 328 329static struct platform_device mini2440_device_eth = { 330 .name = "dm9000", 331 .id = -1, 332 .num_resources = ARRAY_SIZE(mini2440_dm9k_resource), 333 .resource = mini2440_dm9k_resource, 334 .dev = { 335 .platform_data = &mini2440_dm9k_pdata, 336 }, 337}; 338 339/* CON5 340 * +--+ /-----\ 341 * | | | | 342 * | | | BAT | 343 * | | \_____/ 344 * | | 345 * | | +----+ +----+ 346 * | | | K5 | | K1 | 347 * | | +----+ +----+ 348 * | | +----+ +----+ 349 * | | | K4 | | K2 | 350 * | | +----+ +----+ 351 * | | +----+ +----+ 352 * | | | K6 | | K3 | 353 * | | +----+ +----+ 354 * ..... 355 */ 356static struct gpio_keys_button mini2440_buttons[] = { 357 { 358 .gpio = S3C2410_GPG(0), /* K1 */ 359 .code = KEY_F1, 360 .desc = "Button 1", 361 .active_low = 1, 362 }, 363 { 364 .gpio = S3C2410_GPG(3), /* K2 */ 365 .code = KEY_F2, 366 .desc = "Button 2", 367 .active_low = 1, 368 }, 369 { 370 .gpio = S3C2410_GPG(5), /* K3 */ 371 .code = KEY_F3, 372 .desc = "Button 3", 373 .active_low = 1, 374 }, 375 { 376 .gpio = S3C2410_GPG(6), /* K4 */ 377 .code = KEY_POWER, 378 .desc = "Power", 379 .active_low = 1, 380 }, 381 { 382 .gpio = S3C2410_GPG(7), /* K5 */ 383 .code = KEY_F5, 384 .desc = "Button 5", 385 .active_low = 1, 386 }, 387#if 0 388 /* this pin is also known as TCLK1 and seems to already 389 * marked as "in use" somehow in the kernel -- possibly wrongly 390 */ 391 { 392 .gpio = S3C2410_GPG(11), /* K6 */ 393 .code = KEY_F6, 394 .desc = "Button 6", 395 .active_low = 1, 396 }, 397#endif 398}; 399 400static struct gpio_keys_platform_data mini2440_button_data = { 401 .buttons = mini2440_buttons, 402 .nbuttons = ARRAY_SIZE(mini2440_buttons), 403}; 404 405static struct platform_device mini2440_button_device = { 406 .name = "gpio-keys", 407 .id = -1, 408 .dev = { 409 .platform_data = &mini2440_button_data, 410 } 411}; 412 413/* LEDS */ 414 415static struct gpiod_lookup_table mini2440_led1_gpio_table = { 416 .dev_id = "s3c24xx_led.1", 417 .table = { 418 GPIO_LOOKUP("GPB", 5, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN), 419 { }, 420 }, 421}; 422 423static struct gpiod_lookup_table mini2440_led2_gpio_table = { 424 .dev_id = "s3c24xx_led.2", 425 .table = { 426 GPIO_LOOKUP("GPB", 6, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN), 427 { }, 428 }, 429}; 430 431static struct gpiod_lookup_table mini2440_led3_gpio_table = { 432 .dev_id = "s3c24xx_led.3", 433 .table = { 434 GPIO_LOOKUP("GPB", 7, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN), 435 { }, 436 }, 437}; 438 439static struct gpiod_lookup_table mini2440_led4_gpio_table = { 440 .dev_id = "s3c24xx_led.4", 441 .table = { 442 GPIO_LOOKUP("GPB", 8, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN), 443 { }, 444 }, 445}; 446 447static struct gpiod_lookup_table mini2440_backlight_gpio_table = { 448 .dev_id = "s3c24xx_led.5", 449 .table = { 450 GPIO_LOOKUP("GPG", 4, NULL, GPIO_ACTIVE_HIGH), 451 { }, 452 }, 453}; 454 455static struct s3c24xx_led_platdata mini2440_led1_pdata = { 456 .name = "led1", 457 .def_trigger = "heartbeat", 458}; 459 460static struct s3c24xx_led_platdata mini2440_led2_pdata = { 461 .name = "led2", 462 .def_trigger = "nand-disk", 463}; 464 465static struct s3c24xx_led_platdata mini2440_led3_pdata = { 466 .name = "led3", 467 .def_trigger = "mmc0", 468}; 469 470static struct s3c24xx_led_platdata mini2440_led4_pdata = { 471 .name = "led4", 472 .def_trigger = "", 473}; 474 475static struct s3c24xx_led_platdata mini2440_led_backlight_pdata = { 476 .name = "backlight", 477 .def_trigger = "backlight", 478}; 479 480static struct platform_device mini2440_led1 = { 481 .name = "s3c24xx_led", 482 .id = 1, 483 .dev = { 484 .platform_data = &mini2440_led1_pdata, 485 }, 486}; 487 488static struct platform_device mini2440_led2 = { 489 .name = "s3c24xx_led", 490 .id = 2, 491 .dev = { 492 .platform_data = &mini2440_led2_pdata, 493 }, 494}; 495 496static struct platform_device mini2440_led3 = { 497 .name = "s3c24xx_led", 498 .id = 3, 499 .dev = { 500 .platform_data = &mini2440_led3_pdata, 501 }, 502}; 503 504static struct platform_device mini2440_led4 = { 505 .name = "s3c24xx_led", 506 .id = 4, 507 .dev = { 508 .platform_data = &mini2440_led4_pdata, 509 }, 510}; 511 512static struct platform_device mini2440_led_backlight = { 513 .name = "s3c24xx_led", 514 .id = 5, 515 .dev = { 516 .platform_data = &mini2440_led_backlight_pdata, 517 }, 518}; 519 520/* AUDIO */ 521 522static struct s3c24xx_uda134x_platform_data mini2440_audio_pins = { 523 .l3_clk = S3C2410_GPB(4), 524 .l3_mode = S3C2410_GPB(2), 525 .l3_data = S3C2410_GPB(3), 526 .model = UDA134X_UDA1341 527}; 528 529static struct platform_device mini2440_audio = { 530 .name = "s3c24xx_uda134x", 531 .id = 0, 532 .dev = { 533 .platform_data = &mini2440_audio_pins, 534 }, 535}; 536 537/* 538 * I2C devices 539 */ 540static const struct property_entry mini2440_at24_properties[] = { 541 PROPERTY_ENTRY_U32("pagesize", 16), 542 { } 543}; 544 545static const struct software_node mini2440_at24_node = { 546 .properties = mini2440_at24_properties, 547}; 548 549static struct i2c_board_info mini2440_i2c_devs[] __initdata = { 550 { 551 I2C_BOARD_INFO("24c08", 0x50), 552 .swnode = &mini2440_at24_node, 553 }, 554}; 555 556static struct uda134x_platform_data s3c24xx_uda134x = { 557 .l3 = { 558 .gpio_clk = S3C2410_GPB(4), 559 .gpio_data = S3C2410_GPB(3), 560 .gpio_mode = S3C2410_GPB(2), 561 .use_gpios = 1, 562 .data_hold = 1, 563 .data_setup = 1, 564 .clock_high = 1, 565 .mode_hold = 1, 566 .mode = 1, 567 .mode_setup = 1, 568 }, 569 .model = UDA134X_UDA1341, 570}; 571 572static struct platform_device uda1340_codec = { 573 .name = "uda134x-codec", 574 .id = -1, 575 .dev = { 576 .platform_data = &s3c24xx_uda134x, 577 }, 578}; 579 580static struct platform_device *mini2440_devices[] __initdata = { 581 &s3c_device_ohci, 582 &s3c_device_wdt, 583 &s3c_device_i2c0, 584 &s3c_device_rtc, 585 &s3c_device_usbgadget, 586 &mini2440_device_eth, 587 &mini2440_led1, 588 &mini2440_led2, 589 &mini2440_led3, 590 &mini2440_led4, 591 &mini2440_button_device, 592 &s3c_device_nand, 593 &s3c_device_sdi, 594 &s3c2440_device_dma, 595 &s3c_device_iis, 596 &uda1340_codec, 597 &mini2440_audio, 598}; 599 600static void __init mini2440_map_io(void) 601{ 602 s3c24xx_init_io(mini2440_iodesc, ARRAY_SIZE(mini2440_iodesc)); 603 s3c24xx_init_uarts(mini2440_uartcfgs, ARRAY_SIZE(mini2440_uartcfgs)); 604 s3c24xx_set_timer_source(S3C24XX_PWM3, S3C24XX_PWM4); 605} 606 607static void __init mini2440_init_time(void) 608{ 609 s3c2440_init_clocks(12000000); 610 s3c24xx_timer_init(); 611} 612 613/* 614 * mini2440_features string 615 * 616 * t = Touchscreen present 617 * b = backlight control 618 * c = camera [TODO] 619 * 0-9 LCD configuration 620 * 621 */ 622static char mini2440_features_str[12] __initdata = "0tb"; 623 624static int __init mini2440_features_setup(char *str) 625{ 626 if (str) 627 strlcpy(mini2440_features_str, str, 628 sizeof(mini2440_features_str)); 629 return 1; 630} 631 632__setup("mini2440=", mini2440_features_setup); 633 634#define FEATURE_SCREEN (1 << 0) 635#define FEATURE_BACKLIGHT (1 << 1) 636#define FEATURE_TOUCH (1 << 2) 637#define FEATURE_CAMERA (1 << 3) 638 639struct mini2440_features_t { 640 int count; 641 int done; 642 int lcd_index; 643 struct platform_device *optional[8]; 644}; 645 646static void __init mini2440_parse_features( 647 struct mini2440_features_t *features, 648 const char *features_str) 649{ 650 const char *fp = features_str; 651 652 features->count = 0; 653 features->done = 0; 654 features->lcd_index = -1; 655 656 while (*fp) { 657 char f = *fp++; 658 659 switch (f) { 660 case '0'...'9': /* tft screen */ 661 if (features->done & FEATURE_SCREEN) { 662 pr_info("MINI2440: '%c' ignored, screen type already set\n", 663 f); 664 } else { 665 int li = f - '0'; 666 667 if (li >= ARRAY_SIZE(mini2440_lcd_cfg)) 668 pr_info("MINI2440: '%c' out of range LCD mode\n", 669 f); 670 else { 671 features->optional[features->count++] = 672 &s3c_device_lcd; 673 features->lcd_index = li; 674 } 675 } 676 features->done |= FEATURE_SCREEN; 677 break; 678 case 'b': 679 if (features->done & FEATURE_BACKLIGHT) 680 pr_info("MINI2440: '%c' ignored, backlight already set\n", 681 f); 682 else { 683 features->optional[features->count++] = 684 &mini2440_led_backlight; 685 } 686 features->done |= FEATURE_BACKLIGHT; 687 break; 688 case 't': 689 pr_info("MINI2440: '%c' ignored, touchscreen not compiled in\n", 690 f); 691 break; 692 case 'c': 693 if (features->done & FEATURE_CAMERA) 694 pr_info("MINI2440: '%c' ignored, camera already registered\n", 695 f); 696 else 697 features->optional[features->count++] = 698 &s3c_device_camif; 699 features->done |= FEATURE_CAMERA; 700 break; 701 } 702 } 703} 704 705static void __init mini2440_init(void) 706{ 707 struct mini2440_features_t features = { 0 }; 708 int i; 709 710 pr_info("MINI2440: Option string mini2440=%s\n", 711 mini2440_features_str); 712 713 /* Parse the feature string */ 714 mini2440_parse_features(&features, mini2440_features_str); 715 716 /* turn LCD on */ 717 s3c_gpio_cfgpin(S3C2410_GPC(0), S3C2410_GPC0_LEND); 718 719 /* Turn the backlight early on */ 720 WARN_ON(gpio_request_one(S3C2410_GPG(4), GPIOF_OUT_INIT_HIGH, NULL)); 721 gpio_free(S3C2410_GPG(4)); 722 723 /* remove pullup on optional PWM backlight -- unused on 3.5 and 7"s */ 724 gpio_request_one(S3C2410_GPB(1), GPIOF_IN, NULL); 725 s3c_gpio_setpull(S3C2410_GPB(1), S3C_GPIO_PULL_UP); 726 gpio_free(S3C2410_GPB(1)); 727 728 /* mark the key as input, without pullups (there is one on the board) */ 729 for (i = 0; i < ARRAY_SIZE(mini2440_buttons); i++) { 730 s3c_gpio_setpull(mini2440_buttons[i].gpio, S3C_GPIO_PULL_UP); 731 s3c_gpio_cfgpin(mini2440_buttons[i].gpio, S3C2410_GPIO_INPUT); 732 } 733 734 /* Configure the I2S pins (GPE0...GPE4) in correct mode */ 735 s3c_gpio_cfgall_range(S3C2410_GPE(0), 5, S3C_GPIO_SFN(2), 736 S3C_GPIO_PULL_NONE); 737 738 if (features.lcd_index != -1) { 739 int li; 740 741 mini2440_fb_info.displays = 742 &mini2440_lcd_cfg[features.lcd_index]; 743 744 pr_info("MINI2440: LCD"); 745 for (li = 0; li < ARRAY_SIZE(mini2440_lcd_cfg); li++) 746 if (li == features.lcd_index) 747 pr_cont(" [%d:%dx%d]", li, 748 mini2440_lcd_cfg[li].width, 749 mini2440_lcd_cfg[li].height); 750 else 751 pr_cont(" %d:%dx%d", li, 752 mini2440_lcd_cfg[li].width, 753 mini2440_lcd_cfg[li].height); 754 pr_cont("\n"); 755 s3c24xx_fb_set_platdata(&mini2440_fb_info); 756 } 757 758 s3c24xx_udc_set_platdata(&mini2440_udc_cfg); 759 gpiod_add_lookup_table(&mini2440_mmc_gpio_table); 760 s3c24xx_mci_set_platdata(&mini2440_mmc_cfg); 761 s3c_nand_set_platdata(&mini2440_nand_info); 762 s3c_i2c0_set_platdata(NULL); 763 764 i2c_register_board_info(0, mini2440_i2c_devs, 765 ARRAY_SIZE(mini2440_i2c_devs)); 766 767 /* Disable pull-up on the LED lines */ 768 s3c_gpio_setpull(S3C2410_GPB(5), S3C_GPIO_PULL_NONE); 769 s3c_gpio_setpull(S3C2410_GPB(6), S3C_GPIO_PULL_NONE); 770 s3c_gpio_setpull(S3C2410_GPB(7), S3C_GPIO_PULL_NONE); 771 s3c_gpio_setpull(S3C2410_GPB(8), S3C_GPIO_PULL_NONE); 772 s3c_gpio_setpull(S3C2410_GPG(4), S3C_GPIO_PULL_NONE); 773 774 /* Add lookups for the lines */ 775 gpiod_add_lookup_table(&mini2440_led1_gpio_table); 776 gpiod_add_lookup_table(&mini2440_led2_gpio_table); 777 gpiod_add_lookup_table(&mini2440_led3_gpio_table); 778 gpiod_add_lookup_table(&mini2440_led4_gpio_table); 779 gpiod_add_lookup_table(&mini2440_backlight_gpio_table); 780 781 platform_add_devices(mini2440_devices, ARRAY_SIZE(mini2440_devices)); 782 783 if (features.count) /* the optional features */ 784 platform_add_devices(features.optional, features.count); 785 786} 787 788 789MACHINE_START(MINI2440, "MINI2440") 790 /* Maintainer: Michel Pollet <buserror@gmail.com> */ 791 .atag_offset = 0x100, 792 .nr_irqs = NR_IRQS_S3C2440, 793 .map_io = mini2440_map_io, 794 .init_machine = mini2440_init, 795 .init_irq = s3c2440_init_irq, 796 .init_time = mini2440_init_time, 797MACHINE_END