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/pinctrl/machine.h>
26 #include <linux/pinctrl/pinconf-generic.h>
27 #include <linux/power_supply.h>
28 #include <linux/power/jz4740-battery.h>
29 #include <linux/power/gpio-charger.h>
30 #include <linux/pwm.h>
31
32 #include <linux/platform_data/jz4740/jz4740_nand.h>
33
34 #include <asm/mach-jz4740/gpio.h>
35 #include <asm/mach-jz4740/jz4740_fb.h>
36 #include <asm/mach-jz4740/jz4740_mmc.h>
37
38 #include <linux/regulator/fixed.h>
39 #include <linux/regulator/machine.h>
40
41 #include <asm/mach-jz4740/platform.h>
42
43 #include "clock.h"
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
55 /* Early prototypes of the QI LB60 had only 1GB of NAND.
56 * In order to support these devices as well the partition and ecc layout is
57 * initialized depending on the NAND size */
58 static struct mtd_partition qi_lb60_partitions_1gb[] = {
59 {
60 .name = "NAND BOOT partition",
61 .offset = 0 * 0x100000,
62 .size = 4 * 0x100000,
63 },
64 {
65 .name = "NAND KERNEL partition",
66 .offset = 4 * 0x100000,
67 .size = 4 * 0x100000,
68 },
69 {
70 .name = "NAND ROOTFS partition",
71 .offset = 8 * 0x100000,
72 .size = (504 + 512) * 0x100000,
73 },
74 };
75
76 static struct mtd_partition qi_lb60_partitions_2gb[] = {
77 {
78 .name = "NAND BOOT partition",
79 .offset = 0 * 0x100000,
80 .size = 4 * 0x100000,
81 },
82 {
83 .name = "NAND KERNEL partition",
84 .offset = 4 * 0x100000,
85 .size = 4 * 0x100000,
86 },
87 {
88 .name = "NAND ROOTFS partition",
89 .offset = 8 * 0x100000,
90 .size = (504 + 512 + 1024) * 0x100000,
91 },
92 };
93
qi_lb60_ooblayout_ecc(struct mtd_info * mtd,int section,struct mtd_oob_region * oobregion)94 static int qi_lb60_ooblayout_ecc(struct mtd_info *mtd, int section,
95 struct mtd_oob_region *oobregion)
96 {
97 if (section)
98 return -ERANGE;
99
100 oobregion->length = 36;
101 oobregion->offset = 6;
102
103 if (mtd->oobsize == 128) {
104 oobregion->length *= 2;
105 oobregion->offset *= 2;
106 }
107
108 return 0;
109 }
110
qi_lb60_ooblayout_free(struct mtd_info * mtd,int section,struct mtd_oob_region * oobregion)111 static int qi_lb60_ooblayout_free(struct mtd_info *mtd, int section,
112 struct mtd_oob_region *oobregion)
113 {
114 int eccbytes = 36, eccoff = 6;
115
116 if (section > 1)
117 return -ERANGE;
118
119 if (mtd->oobsize == 128) {
120 eccbytes *= 2;
121 eccoff *= 2;
122 }
123
124 if (!section) {
125 oobregion->offset = 2;
126 oobregion->length = eccoff - 2;
127 } else {
128 oobregion->offset = eccoff + eccbytes;
129 oobregion->length = mtd->oobsize - oobregion->offset;
130 }
131
132 return 0;
133 }
134
135 static const struct mtd_ooblayout_ops qi_lb60_ooblayout_ops = {
136 .ecc = qi_lb60_ooblayout_ecc,
137 .free = qi_lb60_ooblayout_free,
138 };
139
qi_lb60_nand_ident(struct platform_device * pdev,struct mtd_info * mtd,struct mtd_partition ** partitions,int * num_partitions)140 static void qi_lb60_nand_ident(struct platform_device *pdev,
141 struct mtd_info *mtd, struct mtd_partition **partitions,
142 int *num_partitions)
143 {
144 struct nand_chip *chip = mtd_to_nand(mtd);
145
146 if (chip->page_shift == 12) {
147 *partitions = qi_lb60_partitions_2gb;
148 *num_partitions = ARRAY_SIZE(qi_lb60_partitions_2gb);
149 } else {
150 *partitions = qi_lb60_partitions_1gb;
151 *num_partitions = ARRAY_SIZE(qi_lb60_partitions_1gb);
152 }
153
154 mtd_set_ooblayout(mtd, &qi_lb60_ooblayout_ops);
155 }
156
157 static struct jz_nand_platform_data qi_lb60_nand_pdata = {
158 .ident_callback = qi_lb60_nand_ident,
159 .banks = { 1 },
160 };
161
162 static struct gpiod_lookup_table qi_lb60_nand_gpio_table = {
163 .dev_id = "jz4740-nand.0",
164 .table = {
165 GPIO_LOOKUP("GPIOC", 30, "busy", 0),
166 { },
167 },
168 };
169
170
171 /* Keyboard*/
172
173 #define KEY_QI_QI KEY_F13
174 #define KEY_QI_UPRED KEY_RIGHTALT
175 #define KEY_QI_VOLUP KEY_VOLUMEUP
176 #define KEY_QI_VOLDOWN KEY_VOLUMEDOWN
177 #define KEY_QI_FN KEY_LEFTCTRL
178
179 static const uint32_t qi_lb60_keymap[] = {
180 KEY(0, 0, KEY_F1), /* S2 */
181 KEY(0, 1, KEY_F2), /* S3 */
182 KEY(0, 2, KEY_F3), /* S4 */
183 KEY(0, 3, KEY_F4), /* S5 */
184 KEY(0, 4, KEY_F5), /* S6 */
185 KEY(0, 5, KEY_F6), /* S7 */
186 KEY(0, 6, KEY_F7), /* S8 */
187
188 KEY(1, 0, KEY_Q), /* S10 */
189 KEY(1, 1, KEY_W), /* S11 */
190 KEY(1, 2, KEY_E), /* S12 */
191 KEY(1, 3, KEY_R), /* S13 */
192 KEY(1, 4, KEY_T), /* S14 */
193 KEY(1, 5, KEY_Y), /* S15 */
194 KEY(1, 6, KEY_U), /* S16 */
195 KEY(1, 7, KEY_I), /* S17 */
196 KEY(2, 0, KEY_A), /* S18 */
197 KEY(2, 1, KEY_S), /* S19 */
198 KEY(2, 2, KEY_D), /* S20 */
199 KEY(2, 3, KEY_F), /* S21 */
200 KEY(2, 4, KEY_G), /* S22 */
201 KEY(2, 5, KEY_H), /* S23 */
202 KEY(2, 6, KEY_J), /* S24 */
203 KEY(2, 7, KEY_K), /* S25 */
204 KEY(3, 0, KEY_ESC), /* S26 */
205 KEY(3, 1, KEY_Z), /* S27 */
206 KEY(3, 2, KEY_X), /* S28 */
207 KEY(3, 3, KEY_C), /* S29 */
208 KEY(3, 4, KEY_V), /* S30 */
209 KEY(3, 5, KEY_B), /* S31 */
210 KEY(3, 6, KEY_N), /* S32 */
211 KEY(3, 7, KEY_M), /* S33 */
212 KEY(4, 0, KEY_TAB), /* S34 */
213 KEY(4, 1, KEY_CAPSLOCK), /* S35 */
214 KEY(4, 2, KEY_BACKSLASH), /* S36 */
215 KEY(4, 3, KEY_APOSTROPHE), /* S37 */
216 KEY(4, 4, KEY_COMMA), /* S38 */
217 KEY(4, 5, KEY_DOT), /* S39 */
218 KEY(4, 6, KEY_SLASH), /* S40 */
219 KEY(4, 7, KEY_UP), /* S41 */
220 KEY(5, 0, KEY_O), /* S42 */
221 KEY(5, 1, KEY_L), /* S43 */
222 KEY(5, 2, KEY_EQUAL), /* S44 */
223 KEY(5, 3, KEY_QI_UPRED), /* S45 */
224 KEY(5, 4, KEY_SPACE), /* S46 */
225 KEY(5, 5, KEY_QI_QI), /* S47 */
226 KEY(5, 6, KEY_RIGHTCTRL), /* S48 */
227 KEY(5, 7, KEY_LEFT), /* S49 */
228 KEY(6, 0, KEY_F8), /* S50 */
229 KEY(6, 1, KEY_P), /* S51 */
230 KEY(6, 2, KEY_BACKSPACE),/* S52 */
231 KEY(6, 3, KEY_ENTER), /* S53 */
232 KEY(6, 4, KEY_QI_VOLUP), /* S54 */
233 KEY(6, 5, KEY_QI_VOLDOWN), /* S55 */
234 KEY(6, 6, KEY_DOWN), /* S56 */
235 KEY(6, 7, KEY_RIGHT), /* S57 */
236
237 KEY(7, 0, KEY_LEFTSHIFT), /* S58 */
238 KEY(7, 1, KEY_LEFTALT), /* S59 */
239 KEY(7, 2, KEY_QI_FN), /* S60 */
240 };
241
242 static const struct matrix_keymap_data qi_lb60_keymap_data = {
243 .keymap = qi_lb60_keymap,
244 .keymap_size = ARRAY_SIZE(qi_lb60_keymap),
245 };
246
247 static const unsigned int qi_lb60_keypad_cols[] = {
248 QI_LB60_GPIO_KEYOUT(0),
249 QI_LB60_GPIO_KEYOUT(1),
250 QI_LB60_GPIO_KEYOUT(2),
251 QI_LB60_GPIO_KEYOUT(3),
252 QI_LB60_GPIO_KEYOUT(4),
253 QI_LB60_GPIO_KEYOUT(5),
254 QI_LB60_GPIO_KEYOUT(6),
255 QI_LB60_GPIO_KEYOUT(7),
256 };
257
258 static const unsigned int qi_lb60_keypad_rows[] = {
259 QI_LB60_GPIO_KEYIN(0),
260 QI_LB60_GPIO_KEYIN(1),
261 QI_LB60_GPIO_KEYIN(2),
262 QI_LB60_GPIO_KEYIN(3),
263 QI_LB60_GPIO_KEYIN(4),
264 QI_LB60_GPIO_KEYIN(5),
265 QI_LB60_GPIO_KEYIN(6),
266 QI_LB60_GPIO_KEYIN8,
267 };
268
269 static struct matrix_keypad_platform_data qi_lb60_pdata = {
270 .keymap_data = &qi_lb60_keymap_data,
271 .col_gpios = qi_lb60_keypad_cols,
272 .row_gpios = qi_lb60_keypad_rows,
273 .num_col_gpios = ARRAY_SIZE(qi_lb60_keypad_cols),
274 .num_row_gpios = ARRAY_SIZE(qi_lb60_keypad_rows),
275 .col_scan_delay_us = 10,
276 .debounce_ms = 10,
277 .wakeup = 1,
278 .active_low = 1,
279 };
280
281 static struct platform_device qi_lb60_keypad = {
282 .name = "matrix-keypad",
283 .id = -1,
284 .dev = {
285 .platform_data = &qi_lb60_pdata,
286 },
287 };
288
289 /* Display */
290 static struct fb_videomode qi_lb60_video_modes[] = {
291 {
292 .name = "320x240",
293 .xres = 320,
294 .yres = 240,
295 .refresh = 30,
296 .left_margin = 140,
297 .right_margin = 273,
298 .upper_margin = 20,
299 .lower_margin = 2,
300 .hsync_len = 1,
301 .vsync_len = 1,
302 .sync = 0,
303 .vmode = FB_VMODE_NONINTERLACED,
304 },
305 };
306
307 static struct jz4740_fb_platform_data qi_lb60_fb_pdata = {
308 .width = 60,
309 .height = 45,
310 .num_modes = ARRAY_SIZE(qi_lb60_video_modes),
311 .modes = qi_lb60_video_modes,
312 .bpp = 24,
313 .lcd_type = JZ_LCD_TYPE_8BIT_SERIAL,
314 .pixclk_falling_edge = 1,
315 };
316
317 struct spi_gpio_platform_data qi_lb60_spigpio_platform_data = {
318 .num_chipselect = 1,
319 };
320
321 static struct platform_device qi_lb60_spigpio_device = {
322 .name = "spi_gpio",
323 .id = 1,
324 .dev = {
325 .platform_data = &qi_lb60_spigpio_platform_data,
326 },
327 };
328
329 static struct gpiod_lookup_table qi_lb60_spigpio_gpio_table = {
330 .dev_id = "spi_gpio",
331 .table = {
332 GPIO_LOOKUP("GPIOC", 23,
333 "sck", GPIO_ACTIVE_HIGH),
334 GPIO_LOOKUP("GPIOC", 22,
335 "mosi", GPIO_ACTIVE_HIGH),
336 GPIO_LOOKUP("GPIOC", 21,
337 "cs", GPIO_ACTIVE_HIGH),
338 { },
339 },
340 };
341
342 static struct spi_board_info qi_lb60_spi_board_info[] = {
343 {
344 .modalias = "ili8960",
345 .chip_select = 0,
346 .bus_num = 1,
347 .max_speed_hz = 30 * 1000,
348 .mode = SPI_3WIRE,
349 },
350 };
351
352 /* Battery */
353 static struct jz_battery_platform_data qi_lb60_battery_pdata = {
354 .gpio_charge = JZ_GPIO_PORTC(27),
355 .gpio_charge_active_low = 1,
356 .info = {
357 .name = "battery",
358 .technology = POWER_SUPPLY_TECHNOLOGY_LIPO,
359 .voltage_max_design = 4200000,
360 .voltage_min_design = 3600000,
361 },
362 };
363
364 /* GPIO Key: power */
365 static struct gpio_keys_button qi_lb60_gpio_keys_buttons[] = {
366 [0] = {
367 .code = KEY_POWER,
368 .gpio = JZ_GPIO_PORTD(29),
369 .active_low = 1,
370 .desc = "Power",
371 .wakeup = 1,
372 },
373 };
374
375 static struct gpio_keys_platform_data qi_lb60_gpio_keys_data = {
376 .nbuttons = ARRAY_SIZE(qi_lb60_gpio_keys_buttons),
377 .buttons = qi_lb60_gpio_keys_buttons,
378 };
379
380 static struct platform_device qi_lb60_gpio_keys = {
381 .name = "gpio-keys",
382 .id = -1,
383 .dev = {
384 .platform_data = &qi_lb60_gpio_keys_data,
385 }
386 };
387
388 static struct jz4740_mmc_platform_data qi_lb60_mmc_pdata = {
389 .gpio_card_detect = QI_LB60_GPIO_SD_CD,
390 .gpio_read_only = -1,
391 .gpio_power = QI_LB60_GPIO_SD_VCC_EN_N,
392 .power_active_low = 1,
393 };
394
395 /* beeper */
396 static struct pwm_lookup qi_lb60_pwm_lookup[] = {
397 PWM_LOOKUP("jz4740-pwm", 4, "pwm-beeper", NULL, 0,
398 PWM_POLARITY_NORMAL),
399 };
400
401 static struct platform_device qi_lb60_pwm_beeper = {
402 .name = "pwm-beeper",
403 .id = -1,
404 };
405
406 /* charger */
407 static char *qi_lb60_batteries[] = {
408 "battery",
409 };
410
411 static struct gpio_charger_platform_data qi_lb60_charger_pdata = {
412 .name = "usb",
413 .type = POWER_SUPPLY_TYPE_USB,
414 .gpio = JZ_GPIO_PORTD(28),
415 .gpio_active_low = 1,
416 .supplied_to = qi_lb60_batteries,
417 .num_supplicants = ARRAY_SIZE(qi_lb60_batteries),
418 };
419
420 static struct platform_device qi_lb60_charger_device = {
421 .name = "gpio-charger",
422 .dev = {
423 .platform_data = &qi_lb60_charger_pdata,
424 },
425 };
426
427 /* audio */
428 static struct platform_device qi_lb60_audio_device = {
429 .name = "qi-lb60-audio",
430 .id = -1,
431 };
432
433 static struct gpiod_lookup_table qi_lb60_audio_gpio_table = {
434 .dev_id = "qi-lb60-audio",
435 .table = {
436 GPIO_LOOKUP("GPIOB", 29, "snd", 0),
437 GPIO_LOOKUP("GPIOD", 4, "amp", 0),
438 { },
439 },
440 };
441
442 static struct platform_device *jz_platform_devices[] __initdata = {
443 &jz4740_udc_device,
444 &jz4740_udc_xceiv_device,
445 &jz4740_mmc_device,
446 &jz4740_nand_device,
447 &qi_lb60_keypad,
448 &qi_lb60_spigpio_device,
449 &jz4740_framebuffer_device,
450 &jz4740_pcm_device,
451 &jz4740_i2s_device,
452 &jz4740_codec_device,
453 &jz4740_adc_device,
454 &jz4740_pwm_device,
455 &jz4740_dma_device,
456 &qi_lb60_gpio_keys,
457 &qi_lb60_pwm_beeper,
458 &qi_lb60_charger_device,
459 &qi_lb60_audio_device,
460 };
461
462 static unsigned long pin_cfg_bias_disable[] = {
463 PIN_CONFIG_BIAS_DISABLE,
464 };
465
466 static struct pinctrl_map pin_map[] __initdata = {
467 /* NAND pin configuration */
468 PIN_MAP_MUX_GROUP_DEFAULT("jz4740-nand",
469 "10010000.jz4740-pinctrl", "nand", "nand-cs1"),
470
471 /* fbdev pin configuration */
472 PIN_MAP_MUX_GROUP("jz4740-fb", PINCTRL_STATE_DEFAULT,
473 "10010000.jz4740-pinctrl", "lcd", "lcd-8bit"),
474 PIN_MAP_MUX_GROUP("jz4740-fb", PINCTRL_STATE_SLEEP,
475 "10010000.jz4740-pinctrl", "lcd", "lcd-no-pins"),
476
477 /* MMC pin configuration */
478 PIN_MAP_MUX_GROUP_DEFAULT("jz4740-mmc.0",
479 "10010000.jz4740-pinctrl", "mmc", "mmc-1bit"),
480 PIN_MAP_MUX_GROUP_DEFAULT("jz4740-mmc.0",
481 "10010000.jz4740-pinctrl", "mmc", "mmc-4bit"),
482 PIN_MAP_CONFIGS_PIN_DEFAULT("jz4740-mmc.0",
483 "10010000.jz4740-pinctrl", "PD0", pin_cfg_bias_disable),
484 PIN_MAP_CONFIGS_PIN_DEFAULT("jz4740-mmc.0",
485 "10010000.jz4740-pinctrl", "PD2", pin_cfg_bias_disable),
486
487 /* PWM pin configuration */
488 PIN_MAP_MUX_GROUP_DEFAULT("jz4740-pwm",
489 "10010000.jz4740-pinctrl", "pwm4", "pwm4"),
490 };
491
492
qi_lb60_init_platform_devices(void)493 static int __init qi_lb60_init_platform_devices(void)
494 {
495 jz4740_framebuffer_device.dev.platform_data = &qi_lb60_fb_pdata;
496 jz4740_nand_device.dev.platform_data = &qi_lb60_nand_pdata;
497 jz4740_adc_device.dev.platform_data = &qi_lb60_battery_pdata;
498 jz4740_mmc_device.dev.platform_data = &qi_lb60_mmc_pdata;
499
500 gpiod_add_lookup_table(&qi_lb60_audio_gpio_table);
501 gpiod_add_lookup_table(&qi_lb60_nand_gpio_table);
502 gpiod_add_lookup_table(&qi_lb60_spigpio_gpio_table);
503
504 spi_register_board_info(qi_lb60_spi_board_info,
505 ARRAY_SIZE(qi_lb60_spi_board_info));
506
507 pwm_add_table(qi_lb60_pwm_lookup, ARRAY_SIZE(qi_lb60_pwm_lookup));
508 pinctrl_register_mappings(pin_map, ARRAY_SIZE(pin_map));
509
510 return platform_add_devices(jz_platform_devices,
511 ARRAY_SIZE(jz_platform_devices));
512
513 }
514
qi_lb60_board_setup(void)515 static int __init qi_lb60_board_setup(void)
516 {
517 printk(KERN_INFO "Qi Hardware JZ4740 QI LB60 setup\n");
518
519 if (qi_lb60_init_platform_devices())
520 panic("Failed to initialize platform devices");
521
522 return 0;
523 }
524 arch_initcall(qi_lb60_board_setup);
525
