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mm: make wait_on_page_writeback() wait for multiple pending writebacks
[linux/fpc-iii.git] / arch / arm / mach-s3c / mach-mini2440.c
blob4100905dfbd0c1e7627739d638b57abc73c7f4e5
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 <mach/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
60 static 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
69 static 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
95 static 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
125 static 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
191 static 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
240 static 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
246 static 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
266 static 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
292 static 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
302 static 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
314 static 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 */
325 static struct dm9000_plat_data mini2440_dm9k_pdata = {
326 .flags = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
327 };
328
329 static 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 */
356 static 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
400 static struct gpio_keys_platform_data mini2440_button_data = {
401 .buttons = mini2440_buttons,
402 .nbuttons = ARRAY_SIZE(mini2440_buttons),
403 };
404
405 static 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
415 static 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
423 static 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
431 static 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
439 static 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
447 static 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
455 static struct s3c24xx_led_platdata mini2440_led1_pdata = {
456 .name = "led1",
457 .def_trigger = "heartbeat",
458 };
459
460 static struct s3c24xx_led_platdata mini2440_led2_pdata = {
461 .name = "led2",
462 .def_trigger = "nand-disk",
463 };
464
465 static struct s3c24xx_led_platdata mini2440_led3_pdata = {
466 .name = "led3",
467 .def_trigger = "mmc0",
468 };
469
470 static struct s3c24xx_led_platdata mini2440_led4_pdata = {
471 .name = "led4",
472 .def_trigger = "",
473 };
474
475 static struct s3c24xx_led_platdata mini2440_led_backlight_pdata = {
476 .name = "backlight",
477 .def_trigger = "backlight",
478 };
479
480 static struct platform_device mini2440_led1 = {
481 .name = "s3c24xx_led",
482 .id = 1,
483 .dev = {
484 .platform_data = &mini2440_led1_pdata,
485 },
486 };
487
488 static struct platform_device mini2440_led2 = {
489 .name = "s3c24xx_led",
490 .id = 2,
491 .dev = {
492 .platform_data = &mini2440_led2_pdata,
493 },
494 };
495
496 static struct platform_device mini2440_led3 = {
497 .name = "s3c24xx_led",
498 .id = 3,
499 .dev = {
500 .platform_data = &mini2440_led3_pdata,
501 },
502 };
503
504 static struct platform_device mini2440_led4 = {
505 .name = "s3c24xx_led",
506 .id = 4,
507 .dev = {
508 .platform_data = &mini2440_led4_pdata,
509 },
510 };
511
512 static 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
522 static 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
529 static 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 */
540 static const struct property_entry mini2440_at24_properties[] = {
541 PROPERTY_ENTRY_U32("pagesize", 16),
542 { }
543 };
544
545 static struct i2c_board_info mini2440_i2c_devs[] __initdata = {
546 {
547 I2C_BOARD_INFO("24c08", 0x50),
548 .properties = mini2440_at24_properties,
549 },
550 };
551
552 static struct uda134x_platform_data s3c24xx_uda134x = {
553 .l3 = {
554 .gpio_clk = S3C2410_GPB(4),
555 .gpio_data = S3C2410_GPB(3),
556 .gpio_mode = S3C2410_GPB(2),
557 .use_gpios = 1,
558 .data_hold = 1,
559 .data_setup = 1,
560 .clock_high = 1,
561 .mode_hold = 1,
562 .mode = 1,
563 .mode_setup = 1,
564 },
565 .model = UDA134X_UDA1341,
566 };
567
568 static struct platform_device uda1340_codec = {
569 .name = "uda134x-codec",
570 .id = -1,
571 .dev = {
572 .platform_data = &s3c24xx_uda134x,
573 },
574 };
575
576 static struct platform_device *mini2440_devices[] __initdata = {
577 &s3c_device_ohci,
578 &s3c_device_wdt,
579 &s3c_device_i2c0,
580 &s3c_device_rtc,
581 &s3c_device_usbgadget,
582 &mini2440_device_eth,
583 &mini2440_led1,
584 &mini2440_led2,
585 &mini2440_led3,
586 &mini2440_led4,
587 &mini2440_button_device,
588 &s3c_device_nand,
589 &s3c_device_sdi,
590 &s3c2440_device_dma,
591 &s3c_device_iis,
592 &uda1340_codec,
593 &mini2440_audio,
594 };
595
596 static void __init mini2440_map_io(void)
597 {
598 s3c24xx_init_io(mini2440_iodesc, ARRAY_SIZE(mini2440_iodesc));
599 s3c24xx_init_uarts(mini2440_uartcfgs, ARRAY_SIZE(mini2440_uartcfgs));
600 s3c24xx_set_timer_source(S3C24XX_PWM3, S3C24XX_PWM4);
601 }
602
603 static void __init mini2440_init_time(void)
604 {
605 s3c2440_init_clocks(12000000);
606 s3c24xx_timer_init();
607 }
608
609 /*
610 * mini2440_features string
611 *
612 * t = Touchscreen present
613 * b = backlight control
614 * c = camera [TODO]
615 * 0-9 LCD configuration
616 *
617 */
618 static char mini2440_features_str[12] __initdata = "0tb";
619
620 static int __init mini2440_features_setup(char *str)
621 {
622 if (str)
623 strlcpy(mini2440_features_str, str,
624 sizeof(mini2440_features_str));
625 return 1;
626 }
627
628 __setup("mini2440=", mini2440_features_setup);
629
630 #define FEATURE_SCREEN (1 << 0)
631 #define FEATURE_BACKLIGHT (1 << 1)
632 #define FEATURE_TOUCH (1 << 2)
633 #define FEATURE_CAMERA (1 << 3)
634
635 struct mini2440_features_t {
636 int count;
637 int done;
638 int lcd_index;
639 struct platform_device *optional[8];
640 };
641
642 static void __init mini2440_parse_features(
643 struct mini2440_features_t *features,
644 const char *features_str)
645 {
646 const char *fp = features_str;
647
648 features->count = 0;
649 features->done = 0;
650 features->lcd_index = -1;
651
652 while (*fp) {
653 char f = *fp++;
654
655 switch (f) {
656 case '0'...'9': /* tft screen */
657 if (features->done & FEATURE_SCREEN) {
658 pr_info("MINI2440: '%c' ignored, screen type already set\n",
659 f);
660 } else {
661 int li = f - '0';
662
663 if (li >= ARRAY_SIZE(mini2440_lcd_cfg))
664 pr_info("MINI2440: '%c' out of range LCD mode\n",
665 f);
666 else {
667 features->optional[features->count++] =
668 &s3c_device_lcd;
669 features->lcd_index = li;
670 }
671 }
672 features->done |= FEATURE_SCREEN;
673 break;
674 case 'b':
675 if (features->done & FEATURE_BACKLIGHT)
676 pr_info("MINI2440: '%c' ignored, backlight already set\n",
677 f);
678 else {
679 features->optional[features->count++] =
680 &mini2440_led_backlight;
681 }
682 features->done |= FEATURE_BACKLIGHT;
683 break;
684 case 't':
685 pr_info("MINI2440: '%c' ignored, touchscreen not compiled in\n",
686 f);
687 break;
688 case 'c':
689 if (features->done & FEATURE_CAMERA)
690 pr_info("MINI2440: '%c' ignored, camera already registered\n",
691 f);
692 else
693 features->optional[features->count++] =
694 &s3c_device_camif;
695 features->done |= FEATURE_CAMERA;
696 break;
697 }
698 }
699 }
700
701 static void __init mini2440_init(void)
702 {
703 struct mini2440_features_t features = { 0 };
704 int i;
705
706 pr_info("MINI2440: Option string mini2440=%s\n",
707 mini2440_features_str);
708
709 /* Parse the feature string */
710 mini2440_parse_features(&features, mini2440_features_str);
711
712 /* turn LCD on */
713 s3c_gpio_cfgpin(S3C2410_GPC(0), S3C2410_GPC0_LEND);
714
715 /* Turn the backlight early on */
716 WARN_ON(gpio_request_one(S3C2410_GPG(4), GPIOF_OUT_INIT_HIGH, NULL));
717 gpio_free(S3C2410_GPG(4));
718
719 /* remove pullup on optional PWM backlight -- unused on 3.5 and 7"s */
720 gpio_request_one(S3C2410_GPB(1), GPIOF_IN, NULL);
721 s3c_gpio_setpull(S3C2410_GPB(1), S3C_GPIO_PULL_UP);
722 gpio_free(S3C2410_GPB(1));
723
724 /* mark the key as input, without pullups (there is one on the board) */
725 for (i = 0; i < ARRAY_SIZE(mini2440_buttons); i++) {
726 s3c_gpio_setpull(mini2440_buttons[i].gpio, S3C_GPIO_PULL_UP);
727 s3c_gpio_cfgpin(mini2440_buttons[i].gpio, S3C2410_GPIO_INPUT);
728 }
729
730 /* Configure the I2S pins (GPE0...GPE4) in correct mode */
731 s3c_gpio_cfgall_range(S3C2410_GPE(0), 5, S3C_GPIO_SFN(2),
732 S3C_GPIO_PULL_NONE);
733
734 if (features.lcd_index != -1) {
735 int li;
736
737 mini2440_fb_info.displays =
738 &mini2440_lcd_cfg[features.lcd_index];
739
740 pr_info("MINI2440: LCD");
741 for (li = 0; li < ARRAY_SIZE(mini2440_lcd_cfg); li++)
742 if (li == features.lcd_index)
743 pr_cont(" [%d:%dx%d]", li,
744 mini2440_lcd_cfg[li].width,
745 mini2440_lcd_cfg[li].height);
746 else
747 pr_cont(" %d:%dx%d", li,
748 mini2440_lcd_cfg[li].width,
749 mini2440_lcd_cfg[li].height);
750 pr_cont("\n");
751 s3c24xx_fb_set_platdata(&mini2440_fb_info);
752 }
753
754 s3c24xx_udc_set_platdata(&mini2440_udc_cfg);
755 gpiod_add_lookup_table(&mini2440_mmc_gpio_table);
756 s3c24xx_mci_set_platdata(&mini2440_mmc_cfg);
757 s3c_nand_set_platdata(&mini2440_nand_info);
758 s3c_i2c0_set_platdata(NULL);
759
760 i2c_register_board_info(0, mini2440_i2c_devs,
761 ARRAY_SIZE(mini2440_i2c_devs));
762
763 /* Disable pull-up on the LED lines */
764 s3c_gpio_setpull(S3C2410_GPB(5), S3C_GPIO_PULL_NONE);
765 s3c_gpio_setpull(S3C2410_GPB(6), S3C_GPIO_PULL_NONE);
766 s3c_gpio_setpull(S3C2410_GPB(7), S3C_GPIO_PULL_NONE);
767 s3c_gpio_setpull(S3C2410_GPB(8), S3C_GPIO_PULL_NONE);
768 s3c_gpio_setpull(S3C2410_GPG(4), S3C_GPIO_PULL_NONE);
769
770 /* Add lookups for the lines */
771 gpiod_add_lookup_table(&mini2440_led1_gpio_table);
772 gpiod_add_lookup_table(&mini2440_led2_gpio_table);
773 gpiod_add_lookup_table(&mini2440_led3_gpio_table);
774 gpiod_add_lookup_table(&mini2440_led4_gpio_table);
775 gpiod_add_lookup_table(&mini2440_backlight_gpio_table);
776
777 platform_add_devices(mini2440_devices, ARRAY_SIZE(mini2440_devices));
778
779 if (features.count) /* the optional features */
780 platform_add_devices(features.optional, features.count);
781
782 }
783
784
785 MACHINE_START(MINI2440, "MINI2440")
786 /* Maintainer: Michel Pollet <buserror@gmail.com> */
787 .atag_offset = 0x100,
788 .map_io = mini2440_map_io,
789 .init_machine = mini2440_init,
790 .init_irq = s3c2440_init_irq,
791 .init_time = mini2440_init_time,
792 MACHINE_END
Linux with added FPC-III support