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 #include <linux/gpio/machine.h>
19
20 #include <linux/input.h>
21 #include <linux/gpio_keys.h>
22 #include <linux/input/matrix_keypad.h>
23 #include <linux/spi/spi.h>
24 #include <linux/spi/spi_gpio.h>
25 #include <linux/power_supply.h>
26 #include <linux/power/jz4740-battery.h>
27 #include <linux/power/gpio-charger.h>
28
29 #include <asm/mach-jz4740/jz4740_fb.h>
30 #include <asm/mach-jz4740/jz4740_mmc.h>
31 #include <asm/mach-jz4740/jz4740_nand.h>
32
33 #include <linux/regulator/fixed.h>
34 #include <linux/regulator/machine.h>
35
36 #include <linux/leds_pwm.h>
37
38 #include <asm/mach-jz4740/platform.h>
39
40 #include "clock.h"
41
42 static bool is_avt2;
43
44 /* GPIOs */
45 #define QI_LB60_GPIO_SD_CD JZ_GPIO_PORTD(0)
46 #define QI_LB60_GPIO_SD_VCC_EN_N JZ_GPIO_PORTD(2)
47
48 #define QI_LB60_GPIO_KEYOUT(x) (JZ_GPIO_PORTC(10) + (x))
49 #define QI_LB60_GPIO_KEYIN(x) (JZ_GPIO_PORTD(18) + (x))
50 #define QI_LB60_GPIO_KEYIN8 JZ_GPIO_PORTD(26)
51
52 /* NAND */
53 static struct nand_ecclayout qi_lb60_ecclayout_1gb = {
54 .eccbytes = 36,
55 .eccpos = {
56 6, 7, 8, 9, 10, 11, 12, 13,
57 14, 15, 16, 17, 18, 19, 20, 21,
58 22, 23, 24, 25, 26, 27, 28, 29,
59 30, 31, 32, 33, 34, 35, 36, 37,
60 38, 39, 40, 41
61 },
62 .oobfree = {
63 { .offset = 2, .length = 4 },
64 { .offset = 42, .length = 22 }
65 },
66 };
67
68 /* Early prototypes of the QI LB60 had only 1GB of NAND.
69 * In order to support these devices as well the partition and ecc layout is
70 * initialized depending on the NAND size */
71 static struct mtd_partition qi_lb60_partitions_1gb[] = {
72 {
73 .name = "NAND BOOT partition",
74 .offset = 0 * 0x100000,
75 .size = 4 * 0x100000,
76 },
77 {
78 .name = "NAND KERNEL partition",
79 .offset = 4 * 0x100000,
80 .size = 4 * 0x100000,
81 },
82 {
83 .name = "NAND ROOTFS partition",
84 .offset = 8 * 0x100000,
85 .size = (504 + 512) * 0x100000,
86 },
87 };
88
89 static struct nand_ecclayout qi_lb60_ecclayout_2gb = {
90 .eccbytes = 72,
91 .eccpos = {
92 12, 13, 14, 15, 16, 17, 18, 19,
93 20, 21, 22, 23, 24, 25, 26, 27,
94 28, 29, 30, 31, 32, 33, 34, 35,
95 36, 37, 38, 39, 40, 41, 42, 43,
96 44, 45, 46, 47, 48, 49, 50, 51,
97 52, 53, 54, 55, 56, 57, 58, 59,
98 60, 61, 62, 63, 64, 65, 66, 67,
99 68, 69, 70, 71, 72, 73, 74, 75,
100 76, 77, 78, 79, 80, 81, 82, 83
101 },
102 .oobfree = {
103 { .offset = 2, .length = 10 },
104 { .offset = 84, .length = 44 },
105 },
106 };
107
108 static struct mtd_partition qi_lb60_partitions_2gb[] = {
109 {
110 .name = "NAND BOOT partition",
111 .offset = 0 * 0x100000,
112 .size = 4 * 0x100000,
113 },
114 {
115 .name = "NAND KERNEL partition",
116 .offset = 4 * 0x100000,
117 .size = 4 * 0x100000,
118 },
119 {
120 .name = "NAND ROOTFS partition",
121 .offset = 8 * 0x100000,
122 .size = (504 + 512 + 1024) * 0x100000,
123 },
124 };
125
qi_lb60_nand_ident(struct platform_device * pdev,struct nand_chip * chip,struct mtd_partition ** partitions,int * num_partitions)126 static void qi_lb60_nand_ident(struct platform_device *pdev,
127 struct nand_chip *chip, struct mtd_partition **partitions,
128 int *num_partitions)
129 {
130 if (chip->page_shift == 12) {
131 chip->ecc.layout = &qi_lb60_ecclayout_2gb;
132 *partitions = qi_lb60_partitions_2gb;
133 *num_partitions = ARRAY_SIZE(qi_lb60_partitions_2gb);
134 } else {
135 chip->ecc.layout = &qi_lb60_ecclayout_1gb;
136 *partitions = qi_lb60_partitions_1gb;
137 *num_partitions = ARRAY_SIZE(qi_lb60_partitions_1gb);
138 }
139 }
140
141 static struct jz_nand_platform_data qi_lb60_nand_pdata = {
142 .ident_callback = qi_lb60_nand_ident,
143 .banks = { 1 },
144 };
145
146 static struct gpiod_lookup_table qi_lb60_nand_gpio_table = {
147 .dev_id = "jz4740-nand.0",
148 .table = {
149 GPIO_LOOKUP("Bank C", 30, "busy", 0),
150 { },
151 },
152 };
153
154
155 /* Keyboard*/
156
157 #define KEY_QI_QI KEY_F13
158 #define KEY_QI_UPRED KEY_RIGHTALT
159 #define KEY_QI_VOLUP KEY_VOLUMEUP
160 #define KEY_QI_VOLDOWN KEY_VOLUMEDOWN
161 #define KEY_QI_FN KEY_LEFTCTRL
162
163 static const uint32_t qi_lb60_keymap[] = {
164 KEY(0, 0, KEY_F1), /* S2 */
165 KEY(0, 1, KEY_F2), /* S3 */
166 KEY(0, 2, KEY_F3), /* S4 */
167 KEY(0, 3, KEY_F4), /* S5 */
168 KEY(0, 4, KEY_F5), /* S6 */
169 KEY(0, 5, KEY_F6), /* S7 */
170 KEY(0, 6, KEY_F7), /* S8 */
171
172 KEY(1, 0, KEY_Q), /* S10 */
173 KEY(1, 1, KEY_W), /* S11 */
174 KEY(1, 2, KEY_E), /* S12 */
175 KEY(1, 3, KEY_R), /* S13 */
176 KEY(1, 4, KEY_T), /* S14 */
177 KEY(1, 5, KEY_Y), /* S15 */
178 KEY(1, 6, KEY_U), /* S16 */
179 KEY(1, 7, KEY_I), /* S17 */
180 KEY(2, 0, KEY_A), /* S18 */
181 KEY(2, 1, KEY_S), /* S19 */
182 KEY(2, 2, KEY_D), /* S20 */
183 KEY(2, 3, KEY_F), /* S21 */
184 KEY(2, 4, KEY_G), /* S22 */
185 KEY(2, 5, KEY_H), /* S23 */
186 KEY(2, 6, KEY_J), /* S24 */
187 KEY(2, 7, KEY_K), /* S25 */
188 KEY(3, 0, KEY_ESC), /* S26 */
189 KEY(3, 1, KEY_Z), /* S27 */
190 KEY(3, 2, KEY_X), /* S28 */
191 KEY(3, 3, KEY_C), /* S29 */
192 KEY(3, 4, KEY_V), /* S30 */
193 KEY(3, 5, KEY_B), /* S31 */
194 KEY(3, 6, KEY_N), /* S32 */
195 KEY(3, 7, KEY_M), /* S33 */
196 KEY(4, 0, KEY_TAB), /* S34 */
197 KEY(4, 1, KEY_CAPSLOCK), /* S35 */
198 KEY(4, 2, KEY_BACKSLASH), /* S36 */
199 KEY(4, 3, KEY_APOSTROPHE), /* S37 */
200 KEY(4, 4, KEY_COMMA), /* S38 */
201 KEY(4, 5, KEY_DOT), /* S39 */
202 KEY(4, 6, KEY_SLASH), /* S40 */
203 KEY(4, 7, KEY_UP), /* S41 */
204 KEY(5, 0, KEY_O), /* S42 */
205 KEY(5, 1, KEY_L), /* S43 */
206 KEY(5, 2, KEY_EQUAL), /* S44 */
207 KEY(5, 3, KEY_QI_UPRED), /* S45 */
208 KEY(5, 4, KEY_SPACE), /* S46 */
209 KEY(5, 5, KEY_QI_QI), /* S47 */
210 KEY(5, 6, KEY_RIGHTCTRL), /* S48 */
211 KEY(5, 7, KEY_LEFT), /* S49 */
212 KEY(6, 0, KEY_F8), /* S50 */
213 KEY(6, 1, KEY_P), /* S51 */
214 KEY(6, 2, KEY_BACKSPACE),/* S52 */
215 KEY(6, 3, KEY_ENTER), /* S53 */
216 KEY(6, 4, KEY_QI_VOLUP), /* S54 */
217 KEY(6, 5, KEY_QI_VOLDOWN), /* S55 */
218 KEY(6, 6, KEY_DOWN), /* S56 */
219 KEY(6, 7, KEY_RIGHT), /* S57 */
220
221 KEY(7, 0, KEY_LEFTSHIFT), /* S58 */
222 KEY(7, 1, KEY_LEFTALT), /* S59 */
223 KEY(7, 2, KEY_QI_FN), /* S60 */
224 };
225
226 static const struct matrix_keymap_data qi_lb60_keymap_data = {
227 .keymap = qi_lb60_keymap,
228 .keymap_size = ARRAY_SIZE(qi_lb60_keymap),
229 };
230
231 static const unsigned int qi_lb60_keypad_cols[] = {
232 QI_LB60_GPIO_KEYOUT(0),
233 QI_LB60_GPIO_KEYOUT(1),
234 QI_LB60_GPIO_KEYOUT(2),
235 QI_LB60_GPIO_KEYOUT(3),
236 QI_LB60_GPIO_KEYOUT(4),
237 QI_LB60_GPIO_KEYOUT(5),
238 QI_LB60_GPIO_KEYOUT(6),
239 QI_LB60_GPIO_KEYOUT(7),
240 };
241
242 static const unsigned int qi_lb60_keypad_rows[] = {
243 QI_LB60_GPIO_KEYIN(0),
244 QI_LB60_GPIO_KEYIN(1),
245 QI_LB60_GPIO_KEYIN(2),
246 QI_LB60_GPIO_KEYIN(3),
247 QI_LB60_GPIO_KEYIN(4),
248 QI_LB60_GPIO_KEYIN(5),
249 QI_LB60_GPIO_KEYIN(6),
250 QI_LB60_GPIO_KEYIN8,
251 };
252
253 static struct matrix_keypad_platform_data qi_lb60_pdata = {
254 .keymap_data = &qi_lb60_keymap_data,
255 .col_gpios = qi_lb60_keypad_cols,
256 .row_gpios = qi_lb60_keypad_rows,
257 .num_col_gpios = ARRAY_SIZE(qi_lb60_keypad_cols),
258 .num_row_gpios = ARRAY_SIZE(qi_lb60_keypad_rows),
259 .col_scan_delay_us = 10,
260 .debounce_ms = 10,
261 .wakeup = 1,
262 .active_low = 1,
263 };
264
265 static struct platform_device qi_lb60_keypad = {
266 .name = "matrix-keypad",
267 .id = -1,
268 .dev = {
269 .platform_data = &qi_lb60_pdata,
270 },
271 };
272
273 /* Display */
274 static struct fb_videomode qi_lb60_video_modes[] = {
275 {
276 .name = "320x240",
277 .xres = 320,
278 .yres = 240,
279 .refresh = 30,
280 .left_margin = 140,
281 .right_margin = 273,
282 .upper_margin = 20,
283 .lower_margin = 2,
284 .hsync_len = 1,
285 .vsync_len = 1,
286 .sync = 0,
287 .vmode = FB_VMODE_NONINTERLACED,
288 },
289 };
290
291 static struct jz4740_fb_platform_data qi_lb60_fb_pdata = {
292 .width = 60,
293 .height = 45,
294 .num_modes = ARRAY_SIZE(qi_lb60_video_modes),
295 .modes = qi_lb60_video_modes,
296 .bpp = 24,
297 .lcd_type = JZ_LCD_TYPE_8BIT_SERIAL,
298 .pixclk_falling_edge = 1,
299 };
300
301 struct spi_gpio_platform_data spigpio_platform_data = {
302 .sck = JZ_GPIO_PORTC(23),
303 .mosi = JZ_GPIO_PORTC(22),
304 .miso = -1,
305 .num_chipselect = 1,
306 };
307
308 static struct platform_device spigpio_device = {
309 .name = "spi_gpio",
310 .id = 1,
311 .dev = {
312 .platform_data = &spigpio_platform_data,
313 },
314 };
315
316 static struct spi_board_info qi_lb60_spi_board_info[] = {
317 {
318 .modalias = "ili8960",
319 .controller_data = (void *)JZ_GPIO_PORTC(21),
320 .chip_select = 0,
321 .bus_num = 1,
322 .max_speed_hz = 30 * 1000,
323 .mode = SPI_3WIRE,
324 },
325 };
326
327 /* Battery */
328 static struct jz_battery_platform_data qi_lb60_battery_pdata = {
329 .gpio_charge = JZ_GPIO_PORTC(27),
330 .gpio_charge_active_low = 1,
331 .info = {
332 .name = "battery",
333 .technology = POWER_SUPPLY_TECHNOLOGY_LIPO,
334 .voltage_max_design = 4200000,
335 .voltage_min_design = 3600000,
336 },
337 };
338
339 /* GPIO Key: power */
340 static struct gpio_keys_button qi_lb60_gpio_keys_buttons[] = {
341 [0] = {
342 .code = KEY_POWER,
343 .gpio = JZ_GPIO_PORTD(29),
344 .active_low = 1,
345 .desc = "Power",
346 .wakeup = 1,
347 },
348 };
349
350 static struct gpio_keys_platform_data qi_lb60_gpio_keys_data = {
351 .nbuttons = ARRAY_SIZE(qi_lb60_gpio_keys_buttons),
352 .buttons = qi_lb60_gpio_keys_buttons,
353 };
354
355 static struct platform_device qi_lb60_gpio_keys = {
356 .name = "gpio-keys",
357 .id = -1,
358 .dev = {
359 .platform_data = &qi_lb60_gpio_keys_data,
360 }
361 };
362
363 static struct jz4740_mmc_platform_data qi_lb60_mmc_pdata = {
364 .gpio_card_detect = QI_LB60_GPIO_SD_CD,
365 .gpio_read_only = -1,
366 .gpio_power = QI_LB60_GPIO_SD_VCC_EN_N,
367 .power_active_low = 1,
368 };
369
370 /* OHCI */
371 static struct regulator_consumer_supply avt2_usb_regulator_consumer =
372 REGULATOR_SUPPLY("vbus", "jz4740-ohci");
373
374 static struct regulator_init_data avt2_usb_regulator_init_data = {
375 .num_consumer_supplies = 1,
376 .consumer_supplies = &avt2_usb_regulator_consumer,
377 .constraints = {
378 .name = "USB power",
379 .min_uV = 5000000,
380 .max_uV = 5000000,
381 .valid_modes_mask = REGULATOR_MODE_NORMAL,
382 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
383 },
384 };
385
386 static struct fixed_voltage_config avt2_usb_regulator_data = {
387 .supply_name = "USB power",
388 .microvolts = 5000000,
389 .gpio = JZ_GPIO_PORTB(17),
390 .init_data = &avt2_usb_regulator_init_data,
391 };
392
393 static struct platform_device avt2_usb_regulator_device = {
394 .name = "reg-fixed-voltage",
395 .id = -1,
396 .dev = {
397 .platform_data = &avt2_usb_regulator_data,
398 }
399 };
400
401 /* beeper */
402 static struct platform_device qi_lb60_pwm_beeper = {
403 .name = "pwm-beeper",
404 .id = -1,
405 .dev = {
406 .platform_data = (void *)4,
407 },
408 };
409
410 /* charger */
411 static char *qi_lb60_batteries[] = {
412 "battery",
413 };
414
415 static struct gpio_charger_platform_data qi_lb60_charger_pdata = {
416 .name = "usb",
417 .type = POWER_SUPPLY_TYPE_USB,
418 .gpio = JZ_GPIO_PORTD(28),
419 .gpio_active_low = 1,
420 .supplied_to = qi_lb60_batteries,
421 .num_supplicants = ARRAY_SIZE(qi_lb60_batteries),
422 };
423
424 static struct platform_device qi_lb60_charger_device = {
425 .name = "gpio-charger",
426 .dev = {
427 .platform_data = &qi_lb60_charger_pdata,
428 },
429 };
430
431 /* audio */
432 static struct platform_device qi_lb60_audio_device = {
433 .name = "qi-lb60-audio",
434 .id = -1,
435 };
436
437 static struct gpiod_lookup_table qi_lb60_audio_gpio_table = {
438 .dev_id = "qi-lb60-audio",
439 .table = {
440 GPIO_LOOKUP("Bank B", 29, "snd", 0),
441 GPIO_LOOKUP("Bank D", 4, "amp", 0),
442 { },
443 },
444 };
445
446 static struct platform_device *jz_platform_devices[] __initdata = {
447 &jz4740_udc_device,
448 &jz4740_udc_xceiv_device,
449 &jz4740_mmc_device,
450 &jz4740_nand_device,
451 &qi_lb60_keypad,
452 &spigpio_device,
453 &jz4740_framebuffer_device,
454 &jz4740_pcm_device,
455 &jz4740_i2s_device,
456 &jz4740_codec_device,
457 &jz4740_rtc_device,
458 &jz4740_adc_device,
459 &jz4740_pwm_device,
460 &jz4740_dma_device,
461 &qi_lb60_gpio_keys,
462 &qi_lb60_pwm_beeper,
463 &qi_lb60_charger_device,
464 &qi_lb60_audio_device,
465 };
466
board_gpio_setup(void)467 static void __init board_gpio_setup(void)
468 {
469 /* We only need to enable/disable pullup here for pins used in generic
470 * drivers. Everything else is done by the drivers themselves. */
471 jz_gpio_disable_pullup(QI_LB60_GPIO_SD_VCC_EN_N);
472 jz_gpio_disable_pullup(QI_LB60_GPIO_SD_CD);
473 }
474
qi_lb60_init_platform_devices(void)475 static int __init qi_lb60_init_platform_devices(void)
476 {
477 jz4740_framebuffer_device.dev.platform_data = &qi_lb60_fb_pdata;
478 jz4740_nand_device.dev.platform_data = &qi_lb60_nand_pdata;
479 jz4740_adc_device.dev.platform_data = &qi_lb60_battery_pdata;
480 jz4740_mmc_device.dev.platform_data = &qi_lb60_mmc_pdata;
481
482 gpiod_add_lookup_table(&qi_lb60_audio_gpio_table);
483 gpiod_add_lookup_table(&qi_lb60_nand_gpio_table);
484
485 jz4740_serial_device_register();
486
487 spi_register_board_info(qi_lb60_spi_board_info,
488 ARRAY_SIZE(qi_lb60_spi_board_info));
489
490 if (is_avt2) {
491 platform_device_register(&avt2_usb_regulator_device);
492 platform_device_register(&jz4740_usb_ohci_device);
493 }
494
495 return platform_add_devices(jz_platform_devices,
496 ARRAY_SIZE(jz_platform_devices));
497
498 }
499
500 struct jz4740_clock_board_data jz4740_clock_bdata = {
501 .ext_rate = 12000000,
502 .rtc_rate = 32768,
503 };
504
board_avt2(char * str)505 static __init int board_avt2(char *str)
506 {
507 qi_lb60_mmc_pdata.card_detect_active_low = 1;
508 is_avt2 = true;
509
510 return 1;
511 }
512 __setup("avt2", board_avt2);
513
qi_lb60_board_setup(void)514 static int __init qi_lb60_board_setup(void)
515 {
516 printk(KERN_INFO "Qi Hardware JZ4740 QI %s setup\n",
517 is_avt2 ? "AVT2" : "LB60");
518
519 board_gpio_setup();
520
521 if (qi_lb60_init_platform_devices())
522 panic("Failed to initialize platform devices");
523
524 return 0;
525 }
526 arch_initcall(qi_lb60_board_setup);
527