Merge tag 'platform-drivers-x86-v4.19-1' of git://git.infradead.org/linux-platform...
[sfrench/cifs-2.6.git] / arch / mips / jz4740 / board-qi_lb60.c
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
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
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
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
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
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);