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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/delay.h> |
18 | #include <linux/gpio.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 | #include <asm/mach-jz4740/base.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 aswell 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 | |
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 | }; |
146 | |
147 | /* Keyboard*/ |
148 | |
149 | #define KEY_QI_QI KEY_F13 |
150 | #define KEY_QI_UPRED KEY_RIGHTALT |
151 | #define KEY_QI_VOLUP KEY_VOLUMEUP |
152 | #define KEY_QI_VOLDOWN KEY_VOLUMEDOWN |
153 | #define KEY_QI_FN KEY_LEFTCTRL |
154 | |
155 | static const uint32_t qi_lb60_keymap[] = { |
156 | KEY(0, 0, KEY_F1), /* S2 */ |
157 | KEY(0, 1, KEY_F2), /* S3 */ |
158 | KEY(0, 2, KEY_F3), /* S4 */ |
159 | KEY(0, 3, KEY_F4), /* S5 */ |
160 | KEY(0, 4, KEY_F5), /* S6 */ |
161 | KEY(0, 5, KEY_F6), /* S7 */ |
162 | KEY(0, 6, KEY_F7), /* S8 */ |
163 | |
164 | KEY(1, 0, KEY_Q), /* S10 */ |
165 | KEY(1, 1, KEY_W), /* S11 */ |
166 | KEY(1, 2, KEY_E), /* S12 */ |
167 | KEY(1, 3, KEY_R), /* S13 */ |
168 | KEY(1, 4, KEY_T), /* S14 */ |
169 | KEY(1, 5, KEY_Y), /* S15 */ |
170 | KEY(1, 6, KEY_U), /* S16 */ |
171 | KEY(1, 7, KEY_I), /* S17 */ |
172 | KEY(2, 0, KEY_A), /* S18 */ |
173 | KEY(2, 1, KEY_S), /* S19 */ |
174 | KEY(2, 2, KEY_D), /* S20 */ |
175 | KEY(2, 3, KEY_F), /* S21 */ |
176 | KEY(2, 4, KEY_G), /* S22 */ |
177 | KEY(2, 5, KEY_H), /* S23 */ |
178 | KEY(2, 6, KEY_J), /* S24 */ |
179 | KEY(2, 7, KEY_K), /* S25 */ |
180 | KEY(3, 0, KEY_ESC), /* S26 */ |
181 | KEY(3, 1, KEY_Z), /* S27 */ |
182 | KEY(3, 2, KEY_X), /* S28 */ |
183 | KEY(3, 3, KEY_C), /* S29 */ |
184 | KEY(3, 4, KEY_V), /* S30 */ |
185 | KEY(3, 5, KEY_B), /* S31 */ |
186 | KEY(3, 6, KEY_N), /* S32 */ |
187 | KEY(3, 7, KEY_M), /* S33 */ |
188 | KEY(4, 0, KEY_TAB), /* S34 */ |
189 | KEY(4, 1, KEY_CAPSLOCK), /* S35 */ |
190 | KEY(4, 2, KEY_BACKSLASH), /* S36 */ |
191 | KEY(4, 3, KEY_APOSTROPHE), /* S37 */ |
192 | KEY(4, 4, KEY_COMMA), /* S38 */ |
193 | KEY(4, 5, KEY_DOT), /* S39 */ |
194 | KEY(4, 6, KEY_SLASH), /* S40 */ |
195 | KEY(4, 7, KEY_UP), /* S41 */ |
196 | KEY(5, 0, KEY_O), /* S42 */ |
197 | KEY(5, 1, KEY_L), /* S43 */ |
198 | KEY(5, 2, KEY_EQUAL), /* S44 */ |
199 | KEY(5, 3, KEY_QI_UPRED), /* S45 */ |
200 | KEY(5, 4, KEY_SPACE), /* S46 */ |
201 | KEY(5, 5, KEY_QI_QI), /* S47 */ |
202 | KEY(5, 6, KEY_RIGHTCTRL), /* S48 */ |
203 | KEY(5, 7, KEY_LEFT), /* S49 */ |
204 | KEY(6, 0, KEY_F8), /* S50 */ |
205 | KEY(6, 1, KEY_P), /* S51 */ |
206 | KEY(6, 2, KEY_BACKSPACE),/* S52 */ |
207 | KEY(6, 3, KEY_ENTER), /* S53 */ |
208 | KEY(6, 4, KEY_QI_VOLUP), /* S54 */ |
209 | KEY(6, 5, KEY_QI_VOLDOWN), /* S55 */ |
210 | KEY(6, 6, KEY_DOWN), /* S56 */ |
211 | KEY(6, 7, KEY_RIGHT), /* S57 */ |
212 | |
213 | KEY(7, 0, KEY_LEFTSHIFT), /* S58 */ |
214 | KEY(7, 1, KEY_LEFTALT), /* S59 */ |
215 | KEY(7, 2, KEY_QI_FN), /* S60 */ |
216 | }; |
217 | |
218 | static const struct matrix_keymap_data qi_lb60_keymap_data = { |
219 | .keymap = qi_lb60_keymap, |
220 | .keymap_size = ARRAY_SIZE(qi_lb60_keymap), |
221 | }; |
222 | |
223 | static const unsigned int qi_lb60_keypad_cols[] = { |
224 | QI_LB60_GPIO_KEYOUT(0), |
225 | QI_LB60_GPIO_KEYOUT(1), |
226 | QI_LB60_GPIO_KEYOUT(2), |
227 | QI_LB60_GPIO_KEYOUT(3), |
228 | QI_LB60_GPIO_KEYOUT(4), |
229 | QI_LB60_GPIO_KEYOUT(5), |
230 | QI_LB60_GPIO_KEYOUT(6), |
231 | QI_LB60_GPIO_KEYOUT(7), |
232 | }; |
233 | |
234 | static const unsigned int qi_lb60_keypad_rows[] = { |
235 | QI_LB60_GPIO_KEYIN(0), |
236 | QI_LB60_GPIO_KEYIN(1), |
237 | QI_LB60_GPIO_KEYIN(2), |
238 | QI_LB60_GPIO_KEYIN(3), |
239 | QI_LB60_GPIO_KEYIN(4), |
240 | QI_LB60_GPIO_KEYIN(5), |
241 | QI_LB60_GPIO_KEYIN(6), |
242 | QI_LB60_GPIO_KEYIN8, |
243 | }; |
244 | |
245 | static struct matrix_keypad_platform_data qi_lb60_pdata = { |
246 | .keymap_data = &qi_lb60_keymap_data, |
247 | .col_gpios = qi_lb60_keypad_cols, |
248 | .row_gpios = qi_lb60_keypad_rows, |
249 | .num_col_gpios = ARRAY_SIZE(qi_lb60_keypad_cols), |
250 | .num_row_gpios = ARRAY_SIZE(qi_lb60_keypad_rows), |
251 | .col_scan_delay_us = 10, |
252 | .debounce_ms = 10, |
253 | .wakeup = 1, |
254 | .active_low = 1, |
255 | }; |
256 | |
257 | static struct platform_device qi_lb60_keypad = { |
258 | .name = "matrix-keypad", |
259 | .id = -1, |
260 | .dev = { |
261 | .platform_data = &qi_lb60_pdata, |
262 | }, |
263 | }; |
264 | |
265 | /* Display */ |
266 | static struct fb_videomode qi_lb60_video_modes[] = { |
267 | { |
268 | .name = "320x240", |
269 | .xres = 320, |
270 | .yres = 240, |
271 | .refresh = 30, |
272 | .left_margin = 140, |
273 | .right_margin = 273, |
274 | .upper_margin = 20, |
275 | .lower_margin = 2, |
276 | .hsync_len = 1, |
277 | .vsync_len = 1, |
278 | .sync = 0, |
279 | .vmode = FB_VMODE_NONINTERLACED, |
280 | }, |
281 | }; |
282 | |
283 | static struct jz4740_fb_platform_data qi_lb60_fb_pdata = { |
284 | .width = 60, |
285 | .height = 45, |
286 | .num_modes = ARRAY_SIZE(qi_lb60_video_modes), |
287 | .modes = qi_lb60_video_modes, |
288 | .bpp = 24, |
289 | .lcd_type = JZ_LCD_TYPE_8BIT_SERIAL, |
290 | .pixclk_falling_edge = 1, |
291 | }; |
292 | |
293 | struct spi_gpio_platform_data spigpio_platform_data = { |
294 | .sck = JZ_GPIO_PORTC(23), |
295 | .mosi = JZ_GPIO_PORTC(22), |
296 | .miso = -1, |
297 | .num_chipselect = 1, |
298 | }; |
299 | |
300 | static struct platform_device spigpio_device = { |
301 | .name = "spi_gpio", |
302 | .id = 1, |
303 | .dev = { |
304 | .platform_data = &spigpio_platform_data, |
305 | }, |
306 | }; |
307 | |
308 | /* SPI */ |
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 | }, |
317 | }; |
318 | |
319 | /* Battery */ |
320 | static struct jz_battery_platform_data qi_lb60_battery_pdata = { |
321 | .gpio_charge = JZ_GPIO_PORTC(27), |
322 | .gpio_charge_active_low = 1, |
323 | .info = { |
324 | .name = "battery", |
325 | .technology = POWER_SUPPLY_TECHNOLOGY_LIPO, |
326 | .voltage_max_design = 4200000, |
327 | .voltage_min_design = 3600000, |
328 | }, |
329 | }; |
330 | |
331 | /* GPIO Key: power */ |
332 | static struct gpio_keys_button qi_lb60_gpio_keys_buttons[] = { |
333 | [0] = { |
334 | .code = KEY_POWER, |
335 | .gpio = JZ_GPIO_PORTD(29), |
336 | .active_low = 1, |
337 | .desc = "Power", |
338 | .wakeup = 1, |
339 | }, |
340 | }; |
341 | |
342 | static struct gpio_keys_platform_data qi_lb60_gpio_keys_data = { |
343 | .nbuttons = ARRAY_SIZE(qi_lb60_gpio_keys_buttons), |
344 | .buttons = qi_lb60_gpio_keys_buttons, |
345 | }; |
346 | |
347 | static struct platform_device qi_lb60_gpio_keys = { |
348 | .name = "gpio-keys", |
349 | .id = -1, |
350 | .dev = { |
351 | .platform_data = &qi_lb60_gpio_keys_data, |
352 | } |
353 | }; |
354 | |
355 | static struct jz4740_mmc_platform_data qi_lb60_mmc_pdata = { |
356 | .gpio_card_detect = QI_LB60_GPIO_SD_CD, |
357 | .gpio_read_only = -1, |
358 | .gpio_power = QI_LB60_GPIO_SD_VCC_EN_N, |
359 | .power_active_low = 1, |
360 | }; |
361 | |
362 | /* OHCI */ |
363 | static struct regulator_consumer_supply avt2_usb_regulator_consumer = |
364 | REGULATOR_SUPPLY("vbus", "jz4740-ohci"); |
365 | |
366 | static struct regulator_init_data avt2_usb_regulator_init_data = { |
367 | .num_consumer_supplies = 1, |
368 | .consumer_supplies = &avt2_usb_regulator_consumer, |
369 | .constraints = { |
370 | .name = "USB power", |
371 | .min_uV = 5000000, |
372 | .max_uV = 5000000, |
373 | .valid_modes_mask = REGULATOR_MODE_NORMAL, |
374 | .valid_ops_mask = REGULATOR_CHANGE_STATUS, |
375 | }, |
376 | }; |
377 | |
378 | static struct fixed_voltage_config avt2_usb_regulator_data = { |
379 | .supply_name = "USB power", |
380 | .microvolts = 5000000, |
381 | .gpio = JZ_GPIO_PORTB(17), |
382 | .init_data = &avt2_usb_regulator_init_data, |
383 | }; |
384 | |
385 | static struct platform_device avt2_usb_regulator_device = { |
386 | .name = "reg-fixed-voltage", |
387 | .id = -1, |
388 | .dev = { |
389 | .platform_data = &avt2_usb_regulator_data, |
390 | } |
391 | }; |
392 | |
393 | /* beeper */ |
394 | static struct platform_device qi_lb60_pwm_beeper = { |
395 | .name = "pwm-beeper", |
396 | .id = -1, |
397 | .dev = { |
398 | .platform_data = (void *)4, |
399 | }, |
400 | }; |
401 | |
402 | /* charger */ |
403 | static char *qi_lb60_batteries[] = { |
404 | "battery", |
405 | }; |
406 | |
407 | static struct gpio_charger_platform_data qi_lb60_charger_pdata = { |
408 | .name = "usb", |
409 | .type = POWER_SUPPLY_TYPE_USB, |
410 | .gpio = JZ_GPIO_PORTD(28), |
411 | .gpio_active_low = 1, |
412 | .supplied_to = qi_lb60_batteries, |
413 | .num_supplicants = ARRAY_SIZE(qi_lb60_batteries), |
414 | }; |
415 | |
416 | static struct platform_device qi_lb60_charger_device = { |
417 | .name = "gpio-charger", |
418 | .dev = { |
419 | .platform_data = &qi_lb60_charger_pdata, |
420 | }, |
421 | }; |
422 | |
423 | static struct platform_device *jz_platform_devices[] __initdata = { |
424 | &jz4740_udc_device, |
425 | // &jz4740_mmc_device, |
426 | &jz4740_nand_device, |
427 | &qi_lb60_keypad, |
428 | &spigpio_device, |
429 | &jz4740_framebuffer_device, |
430 | &jz4740_pcm_device, |
431 | &jz4740_i2s_device, |
432 | &jz4740_codec_device, |
433 | &jz4740_rtc_device, |
434 | &jz4740_adc_device, |
435 | &qi_lb60_gpio_keys, |
436 | &qi_lb60_pwm_beeper, |
437 | &qi_lb60_charger_device, |
438 | }; |
439 | |
440 | static void __init board_gpio_setup(void) |
441 | { |
442 | /* We only need to enable/disable pullup here for pins used in generic |
443 | * drivers. Everything else is done by the drivers themselfs. */ |
444 | jz_gpio_disable_pullup(QI_LB60_GPIO_SD_VCC_EN_N); |
445 | jz_gpio_disable_pullup(QI_LB60_GPIO_SD_CD); |
446 | |
447 | jz_gpio_set_function(JZ_GPIO_PORTD(12), JZ_GPIO_FUNC_NONE); |
448 | jz_gpio_set_function(JZ_GPIO_PORTD(13), JZ_GPIO_FUNC_NONE); |
449 | jz_gpio_set_function(JZ_GPIO_PORTD(8), JZ_GPIO_FUNC_NONE); |
450 | jz_gpio_set_function(JZ_GPIO_PORTD(9), JZ_GPIO_FUNC_NONE); |
451 | jz_gpio_set_function(JZ_GPIO_PORTD(10), JZ_GPIO_FUNC_NONE); |
452 | jz_gpio_set_function(JZ_GPIO_PORTD(11), JZ_GPIO_FUNC_NONE); |
453 | } |
454 | |
455 | static int __init qi_lb60_init_platform_devices(void) |
456 | { |
457 | jz4740_framebuffer_device.dev.platform_data = &qi_lb60_fb_pdata; |
458 | jz4740_nand_device.dev.platform_data = &qi_lb60_nand_pdata; |
459 | jz4740_adc_device.dev.platform_data = &qi_lb60_battery_pdata; |
460 | jz4740_mmc_device.dev.platform_data = &qi_lb60_mmc_pdata; |
461 | |
462 | jz4740_serial_device_register(); |
463 | |
464 | spi_register_board_info(qi_lb60_spi_board_info, |
465 | ARRAY_SIZE(qi_lb60_spi_board_info)); |
466 | |
467 | if (is_avt2) { |
468 | platform_device_register(&avt2_usb_regulator_device); |
469 | platform_device_register(&jz4740_usb_ohci_device); |
470 | } |
471 | |
472 | return platform_add_devices(jz_platform_devices, |
473 | ARRAY_SIZE(jz_platform_devices)); |
474 | |
475 | } |
476 | |
477 | struct jz4740_clock_board_data jz4740_clock_bdata = { |
478 | .ext_rate = 12000000, |
479 | .rtc_rate = 32768, |
480 | }; |
481 | |
482 | static __init int board_avt2(char *str) |
483 | { |
484 | qi_lb60_mmc_pdata.card_detect_active_low = 1; |
485 | is_avt2 = true; |
486 | |
487 | return 1; |
488 | } |
489 | __setup("avt2", board_avt2); |
490 | |
491 | static int __init qi_lb60_board_setup(void) |
492 | { |
493 | printk(KERN_INFO "Qi Hardware JZ4740 QI %s setup\n", |
494 | is_avt2 ? "AVT2" : "LB60"); |
495 | |
496 | board_gpio_setup(); |
497 | |
498 | if (qi_lb60_init_platform_devices()) |
499 | panic("Failed to initialize platform devices\n"); |
500 | |
501 | return 0; |
502 | } |
503 | arch_initcall(qi_lb60_board_setup); |
504 |
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