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
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 };
97
98 static struct gpiod_lookup_table mini2440_udc_gpio_table = {
99 .dev_id = "s3c2410-usbgadget",
100 .table = {
101 GPIO_LOOKUP("GPIOC", 5, "pullup", GPIO_ACTIVE_HIGH),
102 { },
103 },
104 };
105
106 /* LCD timing and setup */
107
108 /*
109 * This macro simplifies the table bellow
110 */
111 #define _LCD_DECLARE(_clock, _xres, margin_left, margin_right, hsync, \
112 _yres, margin_top, margin_bottom, vsync, refresh) \
113 .width = _xres, \
114 .xres = _xres, \
115 .height = _yres, \
116 .yres = _yres, \
117 .left_margin = margin_left, \
118 .right_margin = margin_right, \
119 .upper_margin = margin_top, \
120 .lower_margin = margin_bottom, \
121 .hsync_len = hsync, \
122 .vsync_len = vsync, \
123 .pixclock = ((_clock*100000000000LL) / \
124 ((refresh) * \
125 (hsync + margin_left + _xres + margin_right) * \
126 (vsync + margin_top + _yres + margin_bottom))), \
127 .bpp = 16,\
128 .type = (S3C2410_LCDCON1_TFT16BPP |\
129 S3C2410_LCDCON1_TFT)
130
131 static struct s3c2410fb_display mini2440_lcd_cfg[] __initdata = {
132 [0] = { /* mini2440 + 3.5" TFT + touchscreen */
133 _LCD_DECLARE(
134 7, /* The 3.5 is quite fast */
135 240, 21, 38, 6, /* x timing */
136 320, 4, 4, 2, /* y timing */
137 60), /* refresh rate */
138 .lcdcon5 = (S3C2410_LCDCON5_FRM565 |
139 S3C2410_LCDCON5_INVVLINE |
140 S3C2410_LCDCON5_INVVFRAME |
141 S3C2410_LCDCON5_INVVDEN |
142 S3C2410_LCDCON5_PWREN),
143 },
144 [1] = { /* mini2440 + 7" TFT + touchscreen */
145 _LCD_DECLARE(
146 10, /* the 7" runs slower */
147 800, 40, 40, 48, /* x timing */
148 480, 29, 3, 3, /* y timing */
149 50), /* refresh rate */
150 .lcdcon5 = (S3C2410_LCDCON5_FRM565 |
151 S3C2410_LCDCON5_INVVLINE |
152 S3C2410_LCDCON5_INVVFRAME |
153 S3C2410_LCDCON5_PWREN),
154 },
155 /* The VGA shield can outout at several resolutions. All share
156 * the same timings, however, anything smaller than 1024x768
157 * will only be displayed in the top left corner of a 1024x768
158 * XGA output unless you add optional dip switches to the shield.
159 * Therefore timings for other resolutions have been omitted here.
160 */
161 [2] = {
162 _LCD_DECLARE(
163 10,
164 1024, 1, 2, 2, /* y timing */
165 768, 200, 16, 16, /* x timing */
166 24), /* refresh rate, maximum stable,
167 * tested with the FPGA shield
168 */
169 .lcdcon5 = (S3C2410_LCDCON5_FRM565 |
170 S3C2410_LCDCON5_HWSWP),
171 },
172 /* mini2440 + 3.5" TFT (LCD-W35i, LQ035Q1DG06 type) + touchscreen*/
173 [3] = {
174 _LCD_DECLARE(
175 /* clock */
176 7,
177 /* xres, margin_right, margin_left, hsync */
178 320, 68, 66, 4,
179 /* yres, margin_top, margin_bottom, vsync */
180 240, 4, 4, 9,
181 /* refresh rate */
182 60),
183 .lcdcon5 = (S3C2410_LCDCON5_FRM565 |
184 S3C2410_LCDCON5_INVVDEN |
185 S3C2410_LCDCON5_INVVFRAME |
186 S3C2410_LCDCON5_INVVLINE |
187 S3C2410_LCDCON5_INVVCLK |
188 S3C2410_LCDCON5_HWSWP),
189 },
190 };
191
192 /* todo - put into gpio header */
193
194 #define S3C2410_GPCCON_MASK(x) (3 << ((x) * 2))
195 #define S3C2410_GPDCON_MASK(x) (3 << ((x) * 2))
196
197 static struct s3c2410fb_mach_info mini2440_fb_info __initdata = {
198 .displays = &mini2440_lcd_cfg[0], /* not constant! see init */
199 .num_displays = 1,
200 .default_display = 0,
201
202 /* Enable VD[2..7], VD[10..15], VD[18..23] and VCLK, syncs, VDEN
203 * and disable the pull down resistors on pins we are using for LCD
204 * data.
205 */
206
207 .gpcup = (0xf << 1) | (0x3f << 10),
208
209 .gpccon = (S3C2410_GPC1_VCLK | S3C2410_GPC2_VLINE |
210 S3C2410_GPC3_VFRAME | S3C2410_GPC4_VM |
211 S3C2410_GPC10_VD2 | S3C2410_GPC11_VD3 |
212 S3C2410_GPC12_VD4 | S3C2410_GPC13_VD5 |
213 S3C2410_GPC14_VD6 | S3C2410_GPC15_VD7),
214
215 .gpccon_mask = (S3C2410_GPCCON_MASK(1) | S3C2410_GPCCON_MASK(2) |
216 S3C2410_GPCCON_MASK(3) | S3C2410_GPCCON_MASK(4) |
217 S3C2410_GPCCON_MASK(10) | S3C2410_GPCCON_MASK(11) |
218 S3C2410_GPCCON_MASK(12) | S3C2410_GPCCON_MASK(13) |
219 S3C2410_GPCCON_MASK(14) | S3C2410_GPCCON_MASK(15)),
220
221 .gpccon_reg = S3C2410_GPCCON,
222 .gpcup_reg = S3C2410_GPCUP,
223
224 .gpdup = (0x3f << 2) | (0x3f << 10),
225
226 .gpdcon = (S3C2410_GPD2_VD10 | S3C2410_GPD3_VD11 |
227 S3C2410_GPD4_VD12 | S3C2410_GPD5_VD13 |
228 S3C2410_GPD6_VD14 | S3C2410_GPD7_VD15 |
229 S3C2410_GPD10_VD18 | S3C2410_GPD11_VD19 |
230 S3C2410_GPD12_VD20 | S3C2410_GPD13_VD21 |
231 S3C2410_GPD14_VD22 | S3C2410_GPD15_VD23),
232
233 .gpdcon_mask = (S3C2410_GPDCON_MASK(2) | S3C2410_GPDCON_MASK(3) |
234 S3C2410_GPDCON_MASK(4) | S3C2410_GPDCON_MASK(5) |
235 S3C2410_GPDCON_MASK(6) | S3C2410_GPDCON_MASK(7) |
236 S3C2410_GPDCON_MASK(10) | S3C2410_GPDCON_MASK(11)|
237 S3C2410_GPDCON_MASK(12) | S3C2410_GPDCON_MASK(13)|
238 S3C2410_GPDCON_MASK(14) | S3C2410_GPDCON_MASK(15)),
239
240 .gpdcon_reg = S3C2410_GPDCON,
241 .gpdup_reg = S3C2410_GPDUP,
242 };
243
244 /* MMC/SD */
245
246 static struct s3c24xx_mci_pdata mini2440_mmc_cfg __initdata = {
247 .wprotect_invert = 1,
248 .set_power = s3c24xx_mci_def_set_power,
249 .ocr_avail = MMC_VDD_32_33|MMC_VDD_33_34,
250 };
251
252 static struct gpiod_lookup_table mini2440_mmc_gpio_table = {
253 .dev_id = "s3c2410-sdi",
254 .table = {
255 /* Card detect S3C2410_GPG(8) */
256 GPIO_LOOKUP("GPIOG", 8, "cd", GPIO_ACTIVE_LOW),
257 /* Write protect S3C2410_GPH(8) */
258 GPIO_LOOKUP("GPIOH", 8, "wp", GPIO_ACTIVE_HIGH),
259 /* bus pins */
260 GPIO_LOOKUP_IDX("GPIOE", 5, "bus", 0, GPIO_ACTIVE_HIGH),
261 GPIO_LOOKUP_IDX("GPIOE", 6, "bus", 1, GPIO_ACTIVE_HIGH),
262 GPIO_LOOKUP_IDX("GPIOE", 7, "bus", 2, GPIO_ACTIVE_HIGH),
263 GPIO_LOOKUP_IDX("GPIOE", 8, "bus", 3, GPIO_ACTIVE_HIGH),
264 GPIO_LOOKUP_IDX("GPIOE", 9, "bus", 4, GPIO_ACTIVE_HIGH),
265 GPIO_LOOKUP_IDX("GPIOE", 10, "bus", 5, GPIO_ACTIVE_HIGH),
266 { },
267 },
268 };
269
270 /* NAND Flash on MINI2440 board */
271
272 static struct mtd_partition mini2440_default_nand_part[] __initdata = {
273 [0] = {
274 .name = "u-boot",
275 .size = SZ_256K,
276 .offset = 0,
277 },
278 [1] = {
279 .name = "u-boot-env",
280 .size = SZ_128K,
281 .offset = SZ_256K,
282 },
283 [2] = {
284 .name = "kernel",
285 /* 5 megabytes, for a kernel with no modules
286 * or a uImage with a ramdisk attached
287 */
288 .size = 0x00500000,
289 .offset = SZ_256K + SZ_128K,
290 },
291 [3] = {
292 .name = "root",
293 .offset = SZ_256K + SZ_128K + 0x00500000,
294 .size = MTDPART_SIZ_FULL,
295 },
296 };
297
298 static struct s3c2410_nand_set mini2440_nand_sets[] __initdata = {
299 [0] = {
300 .name = "nand",
301 .nr_chips = 1,
302 .nr_partitions = ARRAY_SIZE(mini2440_default_nand_part),
303 .partitions = mini2440_default_nand_part,
304 .flash_bbt = 1, /* we use u-boot to create a BBT */
305 },
306 };
307
308 static struct s3c2410_platform_nand mini2440_nand_info __initdata = {
309 .tacls = 0,
310 .twrph0 = 25,
311 .twrph1 = 15,
312 .nr_sets = ARRAY_SIZE(mini2440_nand_sets),
313 .sets = mini2440_nand_sets,
314 .ignore_unset_ecc = 1,
315 .engine_type = NAND_ECC_ENGINE_TYPE_ON_HOST,
316 };
317
318 /* DM9000AEP 10/100 ethernet controller */
319
320 static struct resource mini2440_dm9k_resource[] = {
321 [0] = DEFINE_RES_MEM(MACH_MINI2440_DM9K_BASE, 4),
322 [1] = DEFINE_RES_MEM(MACH_MINI2440_DM9K_BASE + 4, 4),
323 [2] = DEFINE_RES_NAMED(IRQ_EINT7, 1, NULL, IORESOURCE_IRQ
324 | IORESOURCE_IRQ_HIGHEDGE),
325 };
326
327 /*
328 * The DM9000 has no eeprom, and it's MAC address is set by
329 * the bootloader before starting the kernel.
330 */
331 static struct dm9000_plat_data mini2440_dm9k_pdata = {
332 .flags = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
333 };
334
335 static struct platform_device mini2440_device_eth = {
336 .name = "dm9000",
337 .id = -1,
338 .num_resources = ARRAY_SIZE(mini2440_dm9k_resource),
339 .resource = mini2440_dm9k_resource,
340 .dev = {
341 .platform_data = &mini2440_dm9k_pdata,
342 },
343 };
344
345 /* CON5
346 * +--+ /-----\
347 * | | | |
348 * | | | BAT |
349 * | | \_____/
350 * | |
351 * | | +----+ +----+
352 * | | | K5 | | K1 |
353 * | | +----+ +----+
354 * | | +----+ +----+
355 * | | | K4 | | K2 |
356 * | | +----+ +----+
357 * | | +----+ +----+
358 * | | | K6 | | K3 |
359 * | | +----+ +----+
360 * .....
361 */
362 static struct gpio_keys_button mini2440_buttons[] = {
363 {
364 .gpio = S3C2410_GPG(0), /* K1 */
365 .code = KEY_F1,
366 .desc = "Button 1",
367 .active_low = 1,
368 },
369 {
370 .gpio = S3C2410_GPG(3), /* K2 */
371 .code = KEY_F2,
372 .desc = "Button 2",
373 .active_low = 1,
374 },
375 {
376 .gpio = S3C2410_GPG(5), /* K3 */
377 .code = KEY_F3,
378 .desc = "Button 3",
379 .active_low = 1,
380 },
381 {
382 .gpio = S3C2410_GPG(6), /* K4 */
383 .code = KEY_POWER,
384 .desc = "Power",
385 .active_low = 1,
386 },
387 {
388 .gpio = S3C2410_GPG(7), /* K5 */
389 .code = KEY_F5,
390 .desc = "Button 5",
391 .active_low = 1,
392 },
393 #if 0
394 /* this pin is also known as TCLK1 and seems to already
395 * marked as "in use" somehow in the kernel -- possibly wrongly
396 */
397 {
398 .gpio = S3C2410_GPG(11), /* K6 */
399 .code = KEY_F6,
400 .desc = "Button 6",
401 .active_low = 1,
402 },
403 #endif
404 };
405
406 static struct gpio_keys_platform_data mini2440_button_data = {
407 .buttons = mini2440_buttons,
408 .nbuttons = ARRAY_SIZE(mini2440_buttons),
409 };
410
411 static struct platform_device mini2440_button_device = {
412 .name = "gpio-keys",
413 .id = -1,
414 .dev = {
415 .platform_data = &mini2440_button_data,
416 }
417 };
418
419 /* LEDS */
420
421 static struct gpiod_lookup_table mini2440_led1_gpio_table = {
422 .dev_id = "s3c24xx_led.1",
423 .table = {
424 GPIO_LOOKUP("GPB", 5, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN),
425 { },
426 },
427 };
428
429 static struct gpiod_lookup_table mini2440_led2_gpio_table = {
430 .dev_id = "s3c24xx_led.2",
431 .table = {
432 GPIO_LOOKUP("GPB", 6, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN),
433 { },
434 },
435 };
436
437 static struct gpiod_lookup_table mini2440_led3_gpio_table = {
438 .dev_id = "s3c24xx_led.3",
439 .table = {
440 GPIO_LOOKUP("GPB", 7, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN),
441 { },
442 },
443 };
444
445 static struct gpiod_lookup_table mini2440_led4_gpio_table = {
446 .dev_id = "s3c24xx_led.4",
447 .table = {
448 GPIO_LOOKUP("GPB", 8, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN),
449 { },
450 },
451 };
452
453 static struct gpiod_lookup_table mini2440_backlight_gpio_table = {
454 .dev_id = "s3c24xx_led.5",
455 .table = {
456 GPIO_LOOKUP("GPG", 4, NULL, GPIO_ACTIVE_HIGH),
457 { },
458 },
459 };
460
461 static struct s3c24xx_led_platdata mini2440_led1_pdata = {
462 .name = "led1",
463 .def_trigger = "heartbeat",
464 };
465
466 static struct s3c24xx_led_platdata mini2440_led2_pdata = {
467 .name = "led2",
468 .def_trigger = "nand-disk",
469 };
470
471 static struct s3c24xx_led_platdata mini2440_led3_pdata = {
472 .name = "led3",
473 .def_trigger = "mmc0",
474 };
475
476 static struct s3c24xx_led_platdata mini2440_led4_pdata = {
477 .name = "led4",
478 .def_trigger = "",
479 };
480
481 static struct s3c24xx_led_platdata mini2440_led_backlight_pdata = {
482 .name = "backlight",
483 .def_trigger = "backlight",
484 };
485
486 static struct platform_device mini2440_led1 = {
487 .name = "s3c24xx_led",
488 .id = 1,
489 .dev = {
490 .platform_data = &mini2440_led1_pdata,
491 },
492 };
493
494 static struct platform_device mini2440_led2 = {
495 .name = "s3c24xx_led",
496 .id = 2,
497 .dev = {
498 .platform_data = &mini2440_led2_pdata,
499 },
500 };
501
502 static struct platform_device mini2440_led3 = {
503 .name = "s3c24xx_led",
504 .id = 3,
505 .dev = {
506 .platform_data = &mini2440_led3_pdata,
507 },
508 };
509
510 static struct platform_device mini2440_led4 = {
511 .name = "s3c24xx_led",
512 .id = 4,
513 .dev = {
514 .platform_data = &mini2440_led4_pdata,
515 },
516 };
517
518 static struct platform_device mini2440_led_backlight = {
519 .name = "s3c24xx_led",
520 .id = 5,
521 .dev = {
522 .platform_data = &mini2440_led_backlight_pdata,
523 },
524 };
525
526 /* AUDIO */
527
528 static struct s3c24xx_uda134x_platform_data mini2440_audio_pins = {
529 .l3_clk = S3C2410_GPB(4),
530 .l3_mode = S3C2410_GPB(2),
531 .l3_data = S3C2410_GPB(3),
532 .model = UDA134X_UDA1341
533 };
534
535 static struct platform_device mini2440_audio = {
536 .name = "s3c24xx_uda134x",
537 .id = 0,
538 .dev = {
539 .platform_data = &mini2440_audio_pins,
540 },
541 };
542
543 /*
544 * I2C devices
545 */
546 static const struct property_entry mini2440_at24_properties[] = {
547 PROPERTY_ENTRY_U32("pagesize", 16),
548 { }
549 };
550
551 static const struct software_node mini2440_at24_node = {
552 .properties = mini2440_at24_properties,
553 };
554
555 static struct i2c_board_info mini2440_i2c_devs[] __initdata = {
556 {
557 I2C_BOARD_INFO("24c08", 0x50),
558 .swnode = &mini2440_at24_node,
559 },
560 };
561
562 static struct uda134x_platform_data s3c24xx_uda134x = {
563 .l3 = {
564 .gpio_clk = S3C2410_GPB(4),
565 .gpio_data = S3C2410_GPB(3),
566 .gpio_mode = S3C2410_GPB(2),
567 .use_gpios = 1,
568 .data_hold = 1,
569 .data_setup = 1,
570 .clock_high = 1,
571 .mode_hold = 1,
572 .mode = 1,
573 .mode_setup = 1,
574 },
575 .model = UDA134X_UDA1341,
576 };
577
578 static struct platform_device uda1340_codec = {
579 .name = "uda134x-codec",
580 .id = -1,
581 .dev = {
582 .platform_data = &s3c24xx_uda134x,
583 },
584 };
585
586 static struct platform_device *mini2440_devices[] __initdata = {
587 &s3c_device_ohci,
588 &s3c_device_wdt,
589 &s3c_device_i2c0,
590 &s3c_device_rtc,
591 &s3c_device_usbgadget,
592 &mini2440_device_eth,
593 &mini2440_led1,
594 &mini2440_led2,
595 &mini2440_led3,
596 &mini2440_led4,
597 &mini2440_button_device,
598 &s3c_device_nand,
599 &s3c_device_sdi,
600 &s3c2440_device_dma,
601 &s3c_device_iis,
602 &uda1340_codec,
603 &mini2440_audio,
604 };
605
mini2440_map_io(void)606 static void __init mini2440_map_io(void)
607 {
608 s3c24xx_init_io(mini2440_iodesc, ARRAY_SIZE(mini2440_iodesc));
609 s3c24xx_init_uarts(mini2440_uartcfgs, ARRAY_SIZE(mini2440_uartcfgs));
610 s3c24xx_set_timer_source(S3C24XX_PWM3, S3C24XX_PWM4);
611 }
612
mini2440_init_time(void)613 static void __init mini2440_init_time(void)
614 {
615 s3c2440_init_clocks(12000000);
616 s3c24xx_timer_init();
617 }
618
619 /*
620 * mini2440_features string
621 *
622 * t = Touchscreen present
623 * b = backlight control
624 * c = camera [TODO]
625 * 0-9 LCD configuration
626 *
627 */
628 static char mini2440_features_str[12] __initdata = "0tb";
629
mini2440_features_setup(char * str)630 static int __init mini2440_features_setup(char *str)
631 {
632 if (str)
633 strscpy(mini2440_features_str, str,
634 sizeof(mini2440_features_str));
635 return 1;
636 }
637
638 __setup("mini2440=", mini2440_features_setup);
639
640 #define FEATURE_SCREEN (1 << 0)
641 #define FEATURE_BACKLIGHT (1 << 1)
642 #define FEATURE_TOUCH (1 << 2)
643 #define FEATURE_CAMERA (1 << 3)
644
645 struct mini2440_features_t {
646 int count;
647 int done;
648 int lcd_index;
649 struct platform_device *optional[8];
650 };
651
mini2440_parse_features(struct mini2440_features_t * features,const char * features_str)652 static void __init mini2440_parse_features(
653 struct mini2440_features_t *features,
654 const char *features_str)
655 {
656 const char *fp = features_str;
657
658 features->count = 0;
659 features->done = 0;
660 features->lcd_index = -1;
661
662 while (*fp) {
663 char f = *fp++;
664
665 switch (f) {
666 case '0'...'9': /* tft screen */
667 if (features->done & FEATURE_SCREEN) {
668 pr_info("MINI2440: '%c' ignored, screen type already set\n",
669 f);
670 } else {
671 int li = f - '0';
672
673 if (li >= ARRAY_SIZE(mini2440_lcd_cfg))
674 pr_info("MINI2440: '%c' out of range LCD mode\n",
675 f);
676 else {
677 features->optional[features->count++] =
678 &s3c_device_lcd;
679 features->lcd_index = li;
680 }
681 }
682 features->done |= FEATURE_SCREEN;
683 break;
684 case 'b':
685 if (features->done & FEATURE_BACKLIGHT)
686 pr_info("MINI2440: '%c' ignored, backlight already set\n",
687 f);
688 else {
689 features->optional[features->count++] =
690 &mini2440_led_backlight;
691 }
692 features->done |= FEATURE_BACKLIGHT;
693 break;
694 case 't':
695 pr_info("MINI2440: '%c' ignored, touchscreen not compiled in\n",
696 f);
697 break;
698 case 'c':
699 if (features->done & FEATURE_CAMERA)
700 pr_info("MINI2440: '%c' ignored, camera already registered\n",
701 f);
702 else
703 features->optional[features->count++] =
704 &s3c_device_camif;
705 features->done |= FEATURE_CAMERA;
706 break;
707 }
708 }
709 }
710
mini2440_init(void)711 static void __init mini2440_init(void)
712 {
713 struct mini2440_features_t features = { 0 };
714 int i;
715
716 pr_info("MINI2440: Option string mini2440=%s\n",
717 mini2440_features_str);
718
719 /* Parse the feature string */
720 mini2440_parse_features(&features, mini2440_features_str);
721
722 /* turn LCD on */
723 s3c_gpio_cfgpin(S3C2410_GPC(0), S3C2410_GPC0_LEND);
724
725 /* Turn the backlight early on */
726 WARN_ON(gpio_request_one(S3C2410_GPG(4), GPIOF_OUT_INIT_HIGH, NULL));
727 gpio_free(S3C2410_GPG(4));
728
729 /* remove pullup on optional PWM backlight -- unused on 3.5 and 7"s */
730 gpio_request_one(S3C2410_GPB(1), GPIOF_IN, NULL);
731 s3c_gpio_setpull(S3C2410_GPB(1), S3C_GPIO_PULL_UP);
732 gpio_free(S3C2410_GPB(1));
733
734 /* mark the key as input, without pullups (there is one on the board) */
735 for (i = 0; i < ARRAY_SIZE(mini2440_buttons); i++) {
736 s3c_gpio_setpull(mini2440_buttons[i].gpio, S3C_GPIO_PULL_UP);
737 s3c_gpio_cfgpin(mini2440_buttons[i].gpio, S3C2410_GPIO_INPUT);
738 }
739
740 /* Configure the I2S pins (GPE0...GPE4) in correct mode */
741 s3c_gpio_cfgall_range(S3C2410_GPE(0), 5, S3C_GPIO_SFN(2),
742 S3C_GPIO_PULL_NONE);
743
744 if (features.lcd_index != -1) {
745 int li;
746
747 mini2440_fb_info.displays =
748 &mini2440_lcd_cfg[features.lcd_index];
749
750 pr_info("MINI2440: LCD");
751 for (li = 0; li < ARRAY_SIZE(mini2440_lcd_cfg); li++)
752 if (li == features.lcd_index)
753 pr_cont(" [%d:%dx%d]", li,
754 mini2440_lcd_cfg[li].width,
755 mini2440_lcd_cfg[li].height);
756 else
757 pr_cont(" %d:%dx%d", li,
758 mini2440_lcd_cfg[li].width,
759 mini2440_lcd_cfg[li].height);
760 pr_cont("\n");
761 s3c24xx_fb_set_platdata(&mini2440_fb_info);
762 }
763
764 gpiod_add_lookup_table(&mini2440_udc_gpio_table);
765 s3c24xx_udc_set_platdata(&mini2440_udc_cfg);
766 gpiod_add_lookup_table(&mini2440_mmc_gpio_table);
767 s3c24xx_mci_set_platdata(&mini2440_mmc_cfg);
768 s3c_nand_set_platdata(&mini2440_nand_info);
769 s3c_i2c0_set_platdata(NULL);
770
771 i2c_register_board_info(0, mini2440_i2c_devs,
772 ARRAY_SIZE(mini2440_i2c_devs));
773
774 /* Disable pull-up on the LED lines */
775 s3c_gpio_setpull(S3C2410_GPB(5), S3C_GPIO_PULL_NONE);
776 s3c_gpio_setpull(S3C2410_GPB(6), S3C_GPIO_PULL_NONE);
777 s3c_gpio_setpull(S3C2410_GPB(7), S3C_GPIO_PULL_NONE);
778 s3c_gpio_setpull(S3C2410_GPB(8), S3C_GPIO_PULL_NONE);
779 s3c_gpio_setpull(S3C2410_GPG(4), S3C_GPIO_PULL_NONE);
780
781 /* Add lookups for the lines */
782 gpiod_add_lookup_table(&mini2440_led1_gpio_table);
783 gpiod_add_lookup_table(&mini2440_led2_gpio_table);
784 gpiod_add_lookup_table(&mini2440_led3_gpio_table);
785 gpiod_add_lookup_table(&mini2440_led4_gpio_table);
786 gpiod_add_lookup_table(&mini2440_backlight_gpio_table);
787
788 platform_add_devices(mini2440_devices, ARRAY_SIZE(mini2440_devices));
789
790 if (features.count) /* the optional features */
791 platform_add_devices(features.optional, features.count);
792
793 }
794
795
796 MACHINE_START(MINI2440, "MINI2440")
797 /* Maintainer: Michel Pollet <buserror@gmail.com> */
798 .atag_offset = 0x100,
799 .nr_irqs = NR_IRQS_S3C2440,
800 .map_io = mini2440_map_io,
801 .init_machine = mini2440_init,
802 .init_irq = s3c2440_init_irq,
803 .init_time = mini2440_init_time,
804 MACHINE_END
805
