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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
[linux-btrfs-devel.git] / arch / mips / jz4740 / board-qi_lb60.c
blobc3b04be3fb2bb4c056e2cb531b5c473d53d23c9f
1 /*
2 * linux/arch/mips/jz4740/board-qi_lb60.c
3 *
4 * QI_LB60 board support
5 *
6 * Copyright (c) 2009 Qi Hardware inc.,
7 * Author: Xiangfu Liu <xiangfu@qi-hardware.com>
8 * Copyright 2010, Lars-Peter Clausen <lars@metafoo.de>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 or later
12 * as published by the Free Software Foundation.
13 */
14
15 #include <linux/kernel.h>
16 #include <linux/init.h>
17 #include <linux/gpio.h>
18
19 #include <linux/input.h>
20 #include <linux/gpio_keys.h>
21 #include <linux/input/matrix_keypad.h>
22 #include <linux/spi/spi.h>
23 #include <linux/spi/spi_gpio.h>
24 #include <linux/power_supply.h>
25 #include <linux/power/jz4740-battery.h>
26 #include <linux/power/gpio-charger.h>
27
28 #include <asm/mach-jz4740/jz4740_fb.h>
29 #include <asm/mach-jz4740/jz4740_mmc.h>
30 #include <asm/mach-jz4740/jz4740_nand.h>
31
32 #include <linux/regulator/fixed.h>
33 #include <linux/regulator/machine.h>
34
35 #include <linux/leds_pwm.h>
36
37 #include <asm/mach-jz4740/platform.h>
38
39 #include "clock.h"
40
41 static bool is_avt2;
42
43 /* GPIOs */
44 #define QI_LB60_GPIO_SD_CD JZ_GPIO_PORTD(0)
45 #define QI_LB60_GPIO_SD_VCC_EN_N JZ_GPIO_PORTD(2)
46
47 #define QI_LB60_GPIO_KEYOUT(x) (JZ_GPIO_PORTC(10) + (x))
48 #define QI_LB60_GPIO_KEYIN(x) (JZ_GPIO_PORTD(18) + (x))
49 #define QI_LB60_GPIO_KEYIN8 JZ_GPIO_PORTD(26)
50
51 /* NAND */
52 static struct nand_ecclayout qi_lb60_ecclayout_1gb = {
53 .eccbytes = 36,
54 .eccpos = {
55 6, 7, 8, 9, 10, 11, 12, 13,
56 14, 15, 16, 17, 18, 19, 20, 21,
57 22, 23, 24, 25, 26, 27, 28, 29,
58 30, 31, 32, 33, 34, 35, 36, 37,
59 38, 39, 40, 41
60 },
61 .oobfree = {
62 { .offset = 2, .length = 4 },
63 { .offset = 42, .length = 22 }
64 },
65 };
66
67 /* Early prototypes of the QI LB60 had only 1GB of NAND.
68 * In order to support these devices as well the partition and ecc layout is
69 * initialized depending on the NAND size */
70 static struct mtd_partition qi_lb60_partitions_1gb[] = {
71 {
72 .name = "NAND BOOT partition",
73 .offset = 0 * 0x100000,
74 .size = 4 * 0x100000,
75 },
76 {
77 .name = "NAND KERNEL partition",
78 .offset = 4 * 0x100000,
79 .size = 4 * 0x100000,
80 },
81 {
82 .name = "NAND ROOTFS partition",
83 .offset = 8 * 0x100000,
84 .size = (504 + 512) * 0x100000,
85 },
86 };
87
88 static struct nand_ecclayout qi_lb60_ecclayout_2gb = {
89 .eccbytes = 72,
90 .eccpos = {
91 12, 13, 14, 15, 16, 17, 18, 19,
92 20, 21, 22, 23, 24, 25, 26, 27,
93 28, 29, 30, 31, 32, 33, 34, 35,
94 36, 37, 38, 39, 40, 41, 42, 43,
95 44, 45, 46, 47, 48, 49, 50, 51,
96 52, 53, 54, 55, 56, 57, 58, 59,
97 60, 61, 62, 63, 64, 65, 66, 67,
98 68, 69, 70, 71, 72, 73, 74, 75,
99 76, 77, 78, 79, 80, 81, 82, 83
100 },
101 .oobfree = {
102 { .offset = 2, .length = 10 },
103 { .offset = 84, .length = 44 },
104 },
105 };
106
107 static struct mtd_partition qi_lb60_partitions_2gb[] = {
108 {
109 .name = "NAND BOOT partition",
110 .offset = 0 * 0x100000,
111 .size = 4 * 0x100000,
112 },
113 {
114 .name = "NAND KERNEL partition",
115 .offset = 4 * 0x100000,
116 .size = 4 * 0x100000,
117 },
118 {
119 .name = "NAND ROOTFS partition",
120 .offset = 8 * 0x100000,
121 .size = (504 + 512 + 1024) * 0x100000,
122 },
123 };
124
125 static void qi_lb60_nand_ident(struct platform_device *pdev,
126 struct nand_chip *chip, struct mtd_partition **partitions,
127 int *num_partitions)
128 {
129 if (chip->page_shift == 12) {
130 chip->ecc.layout = &qi_lb60_ecclayout_2gb;
131 *partitions = qi_lb60_partitions_2gb;
132 *num_partitions = ARRAY_SIZE(qi_lb60_partitions_2gb);
133 } else {
134 chip->ecc.layout = &qi_lb60_ecclayout_1gb;
135 *partitions = qi_lb60_partitions_1gb;
136 *num_partitions = ARRAY_SIZE(qi_lb60_partitions_1gb);
137 }
138 }
139
140 static struct jz_nand_platform_data qi_lb60_nand_pdata = {
141 .ident_callback = qi_lb60_nand_ident,
142 .busy_gpio = 94,
143 };
144
145 /* Keyboard*/
146
147 #define KEY_QI_QI KEY_F13
148 #define KEY_QI_UPRED KEY_RIGHTALT
149 #define KEY_QI_VOLUP KEY_VOLUMEUP
150 #define KEY_QI_VOLDOWN KEY_VOLUMEDOWN
151 #define KEY_QI_FN KEY_LEFTCTRL
152
153 static const uint32_t qi_lb60_keymap[] = {
154 KEY(0, 0, KEY_F1), /* S2 */
155 KEY(0, 1, KEY_F2), /* S3 */
156 KEY(0, 2, KEY_F3), /* S4 */
157 KEY(0, 3, KEY_F4), /* S5 */
158 KEY(0, 4, KEY_F5), /* S6 */
159 KEY(0, 5, KEY_F6), /* S7 */
160 KEY(0, 6, KEY_F7), /* S8 */
161
162 KEY(1, 0, KEY_Q), /* S10 */
163 KEY(1, 1, KEY_W), /* S11 */
164 KEY(1, 2, KEY_E), /* S12 */
165 KEY(1, 3, KEY_R), /* S13 */
166 KEY(1, 4, KEY_T), /* S14 */
167 KEY(1, 5, KEY_Y), /* S15 */
168 KEY(1, 6, KEY_U), /* S16 */
169 KEY(1, 7, KEY_I), /* S17 */
170 KEY(2, 0, KEY_A), /* S18 */
171 KEY(2, 1, KEY_S), /* S19 */
172 KEY(2, 2, KEY_D), /* S20 */
173 KEY(2, 3, KEY_F), /* S21 */
174 KEY(2, 4, KEY_G), /* S22 */
175 KEY(2, 5, KEY_H), /* S23 */
176 KEY(2, 6, KEY_J), /* S24 */
177 KEY(2, 7, KEY_K), /* S25 */
178 KEY(3, 0, KEY_ESC), /* S26 */
179 KEY(3, 1, KEY_Z), /* S27 */
180 KEY(3, 2, KEY_X), /* S28 */
181 KEY(3, 3, KEY_C), /* S29 */
182 KEY(3, 4, KEY_V), /* S30 */
183 KEY(3, 5, KEY_B), /* S31 */
184 KEY(3, 6, KEY_N), /* S32 */
185 KEY(3, 7, KEY_M), /* S33 */
186 KEY(4, 0, KEY_TAB), /* S34 */
187 KEY(4, 1, KEY_CAPSLOCK), /* S35 */
188 KEY(4, 2, KEY_BACKSLASH), /* S36 */
189 KEY(4, 3, KEY_APOSTROPHE), /* S37 */
190 KEY(4, 4, KEY_COMMA), /* S38 */
191 KEY(4, 5, KEY_DOT), /* S39 */
192 KEY(4, 6, KEY_SLASH), /* S40 */
193 KEY(4, 7, KEY_UP), /* S41 */
194 KEY(5, 0, KEY_O), /* S42 */
195 KEY(5, 1, KEY_L), /* S43 */
196 KEY(5, 2, KEY_EQUAL), /* S44 */
197 KEY(5, 3, KEY_QI_UPRED), /* S45 */
198 KEY(5, 4, KEY_SPACE), /* S46 */
199 KEY(5, 5, KEY_QI_QI), /* S47 */
200 KEY(5, 6, KEY_RIGHTCTRL), /* S48 */
201 KEY(5, 7, KEY_LEFT), /* S49 */
202 KEY(6, 0, KEY_F8), /* S50 */
203 KEY(6, 1, KEY_P), /* S51 */
204 KEY(6, 2, KEY_BACKSPACE),/* S52 */
205 KEY(6, 3, KEY_ENTER), /* S53 */
206 KEY(6, 4, KEY_QI_VOLUP), /* S54 */
207 KEY(6, 5, KEY_QI_VOLDOWN), /* S55 */
208 KEY(6, 6, KEY_DOWN), /* S56 */
209 KEY(6, 7, KEY_RIGHT), /* S57 */
210
211 KEY(7, 0, KEY_LEFTSHIFT), /* S58 */
212 KEY(7, 1, KEY_LEFTALT), /* S59 */
213 KEY(7, 2, KEY_QI_FN), /* S60 */
214 };
215
216 static const struct matrix_keymap_data qi_lb60_keymap_data = {
217 .keymap = qi_lb60_keymap,
218 .keymap_size = ARRAY_SIZE(qi_lb60_keymap),
219 };
220
221 static const unsigned int qi_lb60_keypad_cols[] = {
222 QI_LB60_GPIO_KEYOUT(0),
223 QI_LB60_GPIO_KEYOUT(1),
224 QI_LB60_GPIO_KEYOUT(2),
225 QI_LB60_GPIO_KEYOUT(3),
226 QI_LB60_GPIO_KEYOUT(4),
227 QI_LB60_GPIO_KEYOUT(5),
228 QI_LB60_GPIO_KEYOUT(6),
229 QI_LB60_GPIO_KEYOUT(7),
230 };
231
232 static const unsigned int qi_lb60_keypad_rows[] = {
233 QI_LB60_GPIO_KEYIN(0),
234 QI_LB60_GPIO_KEYIN(1),
235 QI_LB60_GPIO_KEYIN(2),
236 QI_LB60_GPIO_KEYIN(3),
237 QI_LB60_GPIO_KEYIN(4),
238 QI_LB60_GPIO_KEYIN(5),
239 QI_LB60_GPIO_KEYIN(6),
240 QI_LB60_GPIO_KEYIN8,
241 };
242
243 static struct matrix_keypad_platform_data qi_lb60_pdata = {
244 .keymap_data = &qi_lb60_keymap_data,
245 .col_gpios = qi_lb60_keypad_cols,
246 .row_gpios = qi_lb60_keypad_rows,
247 .num_col_gpios = ARRAY_SIZE(qi_lb60_keypad_cols),
248 .num_row_gpios = ARRAY_SIZE(qi_lb60_keypad_rows),
249 .col_scan_delay_us = 10,
250 .debounce_ms = 10,
251 .wakeup = 1,
252 .active_low = 1,
253 };
254
255 static struct platform_device qi_lb60_keypad = {
256 .name = "matrix-keypad",
257 .id = -1,
258 .dev = {
259 .platform_data = &qi_lb60_pdata,
260 },
261 };
262
263 /* Display */
264 static struct fb_videomode qi_lb60_video_modes[] = {
265 {
266 .name = "320x240",
267 .xres = 320,
268 .yres = 240,
269 .refresh = 30,
270 .left_margin = 140,
271 .right_margin = 273,
272 .upper_margin = 20,
273 .lower_margin = 2,
274 .hsync_len = 1,
275 .vsync_len = 1,
276 .sync = 0,
277 .vmode = FB_VMODE_NONINTERLACED,
278 },
279 };
280
281 static struct jz4740_fb_platform_data qi_lb60_fb_pdata = {
282 .width = 60,
283 .height = 45,
284 .num_modes = ARRAY_SIZE(qi_lb60_video_modes),
285 .modes = qi_lb60_video_modes,
286 .bpp = 24,
287 .lcd_type = JZ_LCD_TYPE_8BIT_SERIAL,
288 .pixclk_falling_edge = 1,
289 };
290
291 struct spi_gpio_platform_data spigpio_platform_data = {
292 .sck = JZ_GPIO_PORTC(23),
293 .mosi = JZ_GPIO_PORTC(22),
294 .miso = -1,
295 .num_chipselect = 1,
296 };
297
298 static struct platform_device spigpio_device = {
299 .name = "spi_gpio",
300 .id = 1,
301 .dev = {
302 .platform_data = &spigpio_platform_data,
303 },
304 };
305
306 static struct spi_board_info qi_lb60_spi_board_info[] = {
307 {
308 .modalias = "ili8960",
309 .controller_data = (void *)JZ_GPIO_PORTC(21),
310 .chip_select = 0,
311 .bus_num = 1,
312 .max_speed_hz = 30 * 1000,
313 .mode = SPI_3WIRE,
314 },
315 };
316
317 /* Battery */
318 static struct jz_battery_platform_data qi_lb60_battery_pdata = {
319 .gpio_charge = JZ_GPIO_PORTC(27),
320 .gpio_charge_active_low = 1,
321 .info = {
322 .name = "battery",
323 .technology = POWER_SUPPLY_TECHNOLOGY_LIPO,
324 .voltage_max_design = 4200000,
325 .voltage_min_design = 3600000,
326 },
327 };
328
329 /* GPIO Key: power */
330 static struct gpio_keys_button qi_lb60_gpio_keys_buttons[] = {
331 [0] = {
332 .code = KEY_POWER,
333 .gpio = JZ_GPIO_PORTD(29),
334 .active_low = 1,
335 .desc = "Power",
336 .wakeup = 1,
337 },
338 };
339
340 static struct gpio_keys_platform_data qi_lb60_gpio_keys_data = {
341 .nbuttons = ARRAY_SIZE(qi_lb60_gpio_keys_buttons),
342 .buttons = qi_lb60_gpio_keys_buttons,
343 };
344
345 static struct platform_device qi_lb60_gpio_keys = {
346 .name = "gpio-keys",
347 .id = -1,
348 .dev = {
349 .platform_data = &qi_lb60_gpio_keys_data,
350 }
351 };
352
353 static struct jz4740_mmc_platform_data qi_lb60_mmc_pdata = {
354 .gpio_card_detect = QI_LB60_GPIO_SD_CD,
355 .gpio_read_only = -1,
356 .gpio_power = QI_LB60_GPIO_SD_VCC_EN_N,
357 .power_active_low = 1,
358 };
359
360 /* OHCI */
361 static struct regulator_consumer_supply avt2_usb_regulator_consumer =
362 REGULATOR_SUPPLY("vbus", "jz4740-ohci");
363
364 static struct regulator_init_data avt2_usb_regulator_init_data = {
365 .num_consumer_supplies = 1,
366 .consumer_supplies = &avt2_usb_regulator_consumer,
367 .constraints = {
368 .name = "USB power",
369 .min_uV = 5000000,
370 .max_uV = 5000000,
371 .valid_modes_mask = REGULATOR_MODE_NORMAL,
372 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
373 },
374 };
375
376 static struct fixed_voltage_config avt2_usb_regulator_data = {
377 .supply_name = "USB power",
378 .microvolts = 5000000,
379 .gpio = JZ_GPIO_PORTB(17),
380 .init_data = &avt2_usb_regulator_init_data,
381 };
382
383 static struct platform_device avt2_usb_regulator_device = {
384 .name = "reg-fixed-voltage",
385 .id = -1,
386 .dev = {
387 .platform_data = &avt2_usb_regulator_data,
388 }
389 };
390
391 /* beeper */
392 static struct platform_device qi_lb60_pwm_beeper = {
393 .name = "pwm-beeper",
394 .id = -1,
395 .dev = {
396 .platform_data = (void *)4,
397 },
398 };
399
400 /* charger */
401 static char *qi_lb60_batteries[] = {
402 "battery",
403 };
404
405 static struct gpio_charger_platform_data qi_lb60_charger_pdata = {
406 .name = "usb",
407 .type = POWER_SUPPLY_TYPE_USB,
408 .gpio = JZ_GPIO_PORTD(28),
409 .gpio_active_low = 1,
410 .supplied_to = qi_lb60_batteries,
411 .num_supplicants = ARRAY_SIZE(qi_lb60_batteries),
412 };
413
414 static struct platform_device qi_lb60_charger_device = {
415 .name = "gpio-charger",
416 .dev = {
417 .platform_data = &qi_lb60_charger_pdata,
418 },
419 };
420
421
422 static struct platform_device *jz_platform_devices[] __initdata = {
423 &jz4740_udc_device,
424 &jz4740_mmc_device,
425 &jz4740_nand_device,
426 &qi_lb60_keypad,
427 &spigpio_device,
428 &jz4740_framebuffer_device,
429 &jz4740_pcm_device,
430 &jz4740_i2s_device,
431 &jz4740_codec_device,
432 &jz4740_rtc_device,
433 &jz4740_adc_device,
434 &qi_lb60_gpio_keys,
435 &qi_lb60_pwm_beeper,
436 &qi_lb60_charger_device,
437 };
438
439 static void __init board_gpio_setup(void)
440 {
441 /* We only need to enable/disable pullup here for pins used in generic
442 * drivers. Everything else is done by the drivers themselves. */
443 jz_gpio_disable_pullup(QI_LB60_GPIO_SD_VCC_EN_N);
444 jz_gpio_disable_pullup(QI_LB60_GPIO_SD_CD);
445 }
446
447 static int __init qi_lb60_init_platform_devices(void)
448 {
449 jz4740_framebuffer_device.dev.platform_data = &qi_lb60_fb_pdata;
450 jz4740_nand_device.dev.platform_data = &qi_lb60_nand_pdata;
451 jz4740_adc_device.dev.platform_data = &qi_lb60_battery_pdata;
452 jz4740_mmc_device.dev.platform_data = &qi_lb60_mmc_pdata;
453
454 jz4740_serial_device_register();
455
456 spi_register_board_info(qi_lb60_spi_board_info,
457 ARRAY_SIZE(qi_lb60_spi_board_info));
458
459 if (is_avt2) {
460 platform_device_register(&avt2_usb_regulator_device);
461 platform_device_register(&jz4740_usb_ohci_device);
462 }
463
464 return platform_add_devices(jz_platform_devices,
465 ARRAY_SIZE(jz_platform_devices));
466
467 }
468
469 struct jz4740_clock_board_data jz4740_clock_bdata = {
470 .ext_rate = 12000000,
471 .rtc_rate = 32768,
472 };
473
474 static __init int board_avt2(char *str)
475 {
476 qi_lb60_mmc_pdata.card_detect_active_low = 1;
477 is_avt2 = true;
478
479 return 1;
480 }
481 __setup("avt2", board_avt2);
482
483 static int __init qi_lb60_board_setup(void)
484 {
485 printk(KERN_INFO "Qi Hardware JZ4740 QI %s setup\n",
486 is_avt2 ? "AVT2" : "LB60");
487
488 board_gpio_setup();
489
490 if (qi_lb60_init_platform_devices())
491 panic("Failed to initialize platform devices\n");
492
493 return 0;
494 }
495 arch_initcall(qi_lb60_board_setup);
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