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