Root/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/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
43static 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 */
54static 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 */
72static 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
90static 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
109static 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
127static 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
142static 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
155static 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
218static const struct matrix_keymap_data qi_lb60_keymap_data = {
219    .keymap = qi_lb60_keymap,
220    .keymap_size = ARRAY_SIZE(qi_lb60_keymap),
221};
222
223static 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
234static 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
245static 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
257static 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 */
266static 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
283static 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
293struct 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
300static 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 */
309static 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 */
320static 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 */
332static 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
342static 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
347static 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
355static 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 */
363static struct regulator_consumer_supply avt2_usb_regulator_consumer =
364    REGULATOR_SUPPLY("vbus", "jz4740-ohci");
365
366static 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
378static 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
385static 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 */
394static 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 */
403static char *qi_lb60_batteries[] = {
404    "battery",
405};
406
407static 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
416static struct platform_device qi_lb60_charger_device = {
417    .name = "gpio-charger",
418    .dev = {
419        .platform_data = &qi_lb60_charger_pdata,
420    },
421};
422
423static 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
440static 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
455static 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
477struct jz4740_clock_board_data jz4740_clock_bdata = {
478    .ext_rate = 12000000,
479    .rtc_rate = 32768,
480};
481
482static __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
491static 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}
503arch_initcall(qi_lb60_board_setup);
504

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