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
42static 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 */
53static 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 */
71static 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
89static 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
108static 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
126static 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
141static struct jz_nand_platform_data qi_lb60_nand_pdata = {
142	.ident_callback = qi_lb60_nand_ident,
143	.banks = { 1 },
144};
145
146static 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
163static 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
226static const struct matrix_keymap_data qi_lb60_keymap_data = {
227	.keymap		= qi_lb60_keymap,
228	.keymap_size	= ARRAY_SIZE(qi_lb60_keymap),
229};
230
231static 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
242static 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
253static 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
265static 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 */
274static 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
291static 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
301struct 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
308static struct platform_device spigpio_device = {
309	.name = "spi_gpio",
310	.id   = 1,
311	.dev = {
312		.platform_data = &spigpio_platform_data,
313	},
314};
315
316static 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 */
328static 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 */
340static 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
350static 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
355static 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
363static 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 */
371static struct regulator_consumer_supply avt2_usb_regulator_consumer =
372	REGULATOR_SUPPLY("vbus", "jz4740-ohci");
373
374static 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
386static 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
393static 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 */
402static 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 */
411static char *qi_lb60_batteries[] = {
412	"battery",
413};
414
415static 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
424static 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 */
432static struct platform_device qi_lb60_audio_device = {
433	.name = "qi-lb60-audio",
434	.id = -1,
435};
436
437static 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
446static 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
467static 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
475static 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
500struct jz4740_clock_board_data jz4740_clock_bdata = {
501	.ext_rate = 12000000,
502	.rtc_rate = 32768,
503};
504
505static __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
514static 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}
526arch_initcall(qi_lb60_board_setup);
527