Root/arch/mips/jz4740/board-qi_lb60.c

Source at commit 1be551a8eb58178b009ac645c537deb68ada70f9 created 7 years 2 months ago.
By Lars-Peter Clausen, mmc: jz4740: Use a regulator for power control
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
19#include <linux/input.h>
20#include <linux/gpio_keys.h>
21#include <linux/input/matrix_keypad.h>
22#include <linux/spi/spi.h>
23#include <linux/spi/spi_gpio.h>
24#include <linux/power_supply.h>
25#include <linux/power/jz4740-battery.h>
26#include <linux/power/gpio-charger.h>
27
28#include <asm/mach-jz4740/jz4740_fb.h>
29#include <asm/mach-jz4740/jz4740_mmc.h>
30#include <asm/mach-jz4740/jz4740_nand.h>
31
32#include <linux/regulator/fixed.h>
33#include <linux/regulator/machine.h>
34
35#include <linux/leds_pwm.h>
36
37#include <asm/mach-jz4740/platform.h>
38
39#include "clock.h"
40
41static bool is_avt2;
42
43/* GPIOs */
44#define QI_LB60_GPIO_SD_CD JZ_GPIO_PORTD(0)
45#define QI_LB60_GPIO_SD_VCC_EN_N JZ_GPIO_PORTD(2)
46
47#define QI_LB60_GPIO_KEYOUT(x) (JZ_GPIO_PORTC(10) + (x))
48#define QI_LB60_GPIO_KEYIN(x) (JZ_GPIO_PORTD(18) + (x))
49#define QI_LB60_GPIO_KEYIN8 JZ_GPIO_PORTD(26)
50
51/* NAND */
52static struct nand_ecclayout qi_lb60_ecclayout_1gb = {
53    .eccbytes = 36,
54    .eccpos = {
55        6, 7, 8, 9, 10, 11, 12, 13,
56        14, 15, 16, 17, 18, 19, 20, 21,
57        22, 23, 24, 25, 26, 27, 28, 29,
58        30, 31, 32, 33, 34, 35, 36, 37,
59        38, 39, 40, 41
60    },
61    .oobfree = {
62        { .offset = 2, .length = 4 },
63        { .offset = 42, .length = 22 }
64    },
65};
66
67/* Early prototypes of the QI LB60 had only 1GB of NAND.
68 * In order to support these devices as well the partition and ecc layout is
69 * initialized depending on the NAND size */
70static struct mtd_partition qi_lb60_partitions_1gb[] = {
71    {
72        .name = "NAND BOOT partition",
73        .offset = 0 * 0x100000,
74        .size = 4 * 0x100000,
75    },
76    {
77        .name = "NAND KERNEL partition",
78        .offset = 4 * 0x100000,
79        .size = 4 * 0x100000,
80    },
81    {
82        .name = "NAND ROOTFS partition",
83        .offset = 8 * 0x100000,
84        .size = (504 + 512) * 0x100000,
85    },
86};
87
88static struct nand_ecclayout qi_lb60_ecclayout_2gb = {
89    .eccbytes = 72,
90    .eccpos = {
91        12, 13, 14, 15, 16, 17, 18, 19,
92        20, 21, 22, 23, 24, 25, 26, 27,
93        28, 29, 30, 31, 32, 33, 34, 35,
94        36, 37, 38, 39, 40, 41, 42, 43,
95        44, 45, 46, 47, 48, 49, 50, 51,
96        52, 53, 54, 55, 56, 57, 58, 59,
97        60, 61, 62, 63, 64, 65, 66, 67,
98        68, 69, 70, 71, 72, 73, 74, 75,
99        76, 77, 78, 79, 80, 81, 82, 83
100    },
101    .oobfree = {
102        { .offset = 2, .length = 10 },
103        { .offset = 84, .length = 44 },
104    },
105};
106
107static struct mtd_partition qi_lb60_partitions_2gb[] = {
108    {
109        .name = "NAND BOOT partition",
110        .offset = 0 * 0x100000,
111        .size = 4 * 0x100000,
112    },
113    {
114        .name = "NAND KERNEL partition",
115        .offset = 4 * 0x100000,
116        .size = 4 * 0x100000,
117    },
118    {
119        .name = "NAND ROOTFS partition",
120        .offset = 8 * 0x100000,
121        .size = (504 + 512 + 1024) * 0x100000,
122    },
123};
124
125static void qi_lb60_nand_ident(struct platform_device *pdev,
126        struct nand_chip *chip, struct mtd_partition **partitions,
127        int *num_partitions)
128{
129    if (chip->page_shift == 12) {
130        chip->ecc.layout = &qi_lb60_ecclayout_2gb;
131        *partitions = qi_lb60_partitions_2gb;
132        *num_partitions = ARRAY_SIZE(qi_lb60_partitions_2gb);
133    } else {
134        chip->ecc.layout = &qi_lb60_ecclayout_1gb;
135        *partitions = qi_lb60_partitions_1gb;
136        *num_partitions = ARRAY_SIZE(qi_lb60_partitions_1gb);
137    }
138}
139
140static struct jz_nand_platform_data qi_lb60_nand_pdata = {
141    .ident_callback = qi_lb60_nand_ident,
142    .busy_gpio = 94,
143    .banks = { 1 },
144};
145
146/* Keyboard*/
147
148#define KEY_QI_QI KEY_F13
149#define KEY_QI_UPRED KEY_RIGHTALT
150#define KEY_QI_VOLUP KEY_VOLUMEUP
151#define KEY_QI_VOLDOWN KEY_VOLUMEDOWN
152#define KEY_QI_FN KEY_LEFTCTRL
153
154static const uint32_t qi_lb60_keymap[] = {
155    KEY(0, 0, KEY_F1), /* S2 */
156    KEY(0, 1, KEY_F2), /* S3 */
157    KEY(0, 2, KEY_F3), /* S4 */
158    KEY(0, 3, KEY_F4), /* S5 */
159    KEY(0, 4, KEY_F5), /* S6 */
160    KEY(0, 5, KEY_F6), /* S7 */
161    KEY(0, 6, KEY_F7), /* S8 */
162
163    KEY(1, 0, KEY_Q), /* S10 */
164    KEY(1, 1, KEY_W), /* S11 */
165    KEY(1, 2, KEY_E), /* S12 */
166    KEY(1, 3, KEY_R), /* S13 */
167    KEY(1, 4, KEY_T), /* S14 */
168    KEY(1, 5, KEY_Y), /* S15 */
169    KEY(1, 6, KEY_U), /* S16 */
170    KEY(1, 7, KEY_I), /* S17 */
171    KEY(2, 0, KEY_A), /* S18 */
172    KEY(2, 1, KEY_S), /* S19 */
173    KEY(2, 2, KEY_D), /* S20 */
174    KEY(2, 3, KEY_F), /* S21 */
175    KEY(2, 4, KEY_G), /* S22 */
176    KEY(2, 5, KEY_H), /* S23 */
177    KEY(2, 6, KEY_J), /* S24 */
178    KEY(2, 7, KEY_K), /* S25 */
179    KEY(3, 0, KEY_ESC), /* S26 */
180    KEY(3, 1, KEY_Z), /* S27 */
181    KEY(3, 2, KEY_X), /* S28 */
182    KEY(3, 3, KEY_C), /* S29 */
183    KEY(3, 4, KEY_V), /* S30 */
184    KEY(3, 5, KEY_B), /* S31 */
185    KEY(3, 6, KEY_N), /* S32 */
186    KEY(3, 7, KEY_M), /* S33 */
187    KEY(4, 0, KEY_TAB), /* S34 */
188    KEY(4, 1, KEY_CAPSLOCK), /* S35 */
189    KEY(4, 2, KEY_BACKSLASH), /* S36 */
190    KEY(4, 3, KEY_APOSTROPHE), /* S37 */
191    KEY(4, 4, KEY_COMMA), /* S38 */
192    KEY(4, 5, KEY_DOT), /* S39 */
193    KEY(4, 6, KEY_SLASH), /* S40 */
194    KEY(4, 7, KEY_UP), /* S41 */
195    KEY(5, 0, KEY_O), /* S42 */
196    KEY(5, 1, KEY_L), /* S43 */
197    KEY(5, 2, KEY_EQUAL), /* S44 */
198    KEY(5, 3, KEY_QI_UPRED), /* S45 */
199    KEY(5, 4, KEY_SPACE), /* S46 */
200    KEY(5, 5, KEY_QI_QI), /* S47 */
201    KEY(5, 6, KEY_RIGHTCTRL), /* S48 */
202    KEY(5, 7, KEY_LEFT), /* S49 */
203    KEY(6, 0, KEY_F8), /* S50 */
204    KEY(6, 1, KEY_P), /* S51 */
205    KEY(6, 2, KEY_BACKSPACE),/* S52 */
206    KEY(6, 3, KEY_ENTER), /* S53 */
207    KEY(6, 4, KEY_QI_VOLUP), /* S54 */
208    KEY(6, 5, KEY_QI_VOLDOWN), /* S55 */
209    KEY(6, 6, KEY_DOWN), /* S56 */
210    KEY(6, 7, KEY_RIGHT), /* S57 */
211
212    KEY(7, 0, KEY_LEFTSHIFT), /* S58 */
213    KEY(7, 1, KEY_LEFTALT), /* S59 */
214    KEY(7, 2, KEY_QI_FN), /* S60 */
215};
216
217static const struct matrix_keymap_data qi_lb60_keymap_data = {
218    .keymap = qi_lb60_keymap,
219    .keymap_size = ARRAY_SIZE(qi_lb60_keymap),
220};
221
222static const unsigned int qi_lb60_keypad_cols[] = {
223    QI_LB60_GPIO_KEYOUT(0),
224    QI_LB60_GPIO_KEYOUT(1),
225    QI_LB60_GPIO_KEYOUT(2),
226    QI_LB60_GPIO_KEYOUT(3),
227    QI_LB60_GPIO_KEYOUT(4),
228    QI_LB60_GPIO_KEYOUT(5),
229    QI_LB60_GPIO_KEYOUT(6),
230    QI_LB60_GPIO_KEYOUT(7),
231};
232
233static const unsigned int qi_lb60_keypad_rows[] = {
234    QI_LB60_GPIO_KEYIN(0),
235    QI_LB60_GPIO_KEYIN(1),
236    QI_LB60_GPIO_KEYIN(2),
237    QI_LB60_GPIO_KEYIN(3),
238    QI_LB60_GPIO_KEYIN(4),
239    QI_LB60_GPIO_KEYIN(5),
240    QI_LB60_GPIO_KEYIN(6),
241    QI_LB60_GPIO_KEYIN8,
242};
243
244static struct matrix_keypad_platform_data qi_lb60_pdata = {
245    .keymap_data = &qi_lb60_keymap_data,
246    .col_gpios = qi_lb60_keypad_cols,
247    .row_gpios = qi_lb60_keypad_rows,
248    .num_col_gpios = ARRAY_SIZE(qi_lb60_keypad_cols),
249    .num_row_gpios = ARRAY_SIZE(qi_lb60_keypad_rows),
250    .col_scan_delay_us = 10,
251    .debounce_ms = 10,
252    .wakeup = 1,
253    .active_low = 1,
254};
255
256static struct platform_device qi_lb60_keypad = {
257    .name = "matrix-keypad",
258    .id = -1,
259    .dev = {
260        .platform_data = &qi_lb60_pdata,
261    },
262};
263
264/* Display */
265static struct fb_videomode qi_lb60_video_modes[] = {
266    {
267        .name = "320x240",
268        .xres = 320,
269        .yres = 240,
270        .refresh = 30,
271        .left_margin = 140,
272        .right_margin = 273,
273        .upper_margin = 20,
274        .lower_margin = 2,
275        .hsync_len = 1,
276        .vsync_len = 1,
277        .sync = 0,
278        .vmode = FB_VMODE_NONINTERLACED,
279    },
280};
281
282static struct jz4740_fb_platform_data qi_lb60_fb_pdata = {
283    .width = 60,
284    .height = 45,
285    .num_modes = ARRAY_SIZE(qi_lb60_video_modes),
286    .modes = qi_lb60_video_modes,
287    .bpp = 24,
288    .lcd_type = JZ_LCD_TYPE_8BIT_SERIAL,
289    .pixclk_falling_edge = 1,
290};
291
292struct spi_gpio_platform_data spigpio_platform_data = {
293    .sck = JZ_GPIO_PORTC(23),
294    .mosi = JZ_GPIO_PORTC(22),
295    .miso = -1,
296    .num_chipselect = 1,
297};
298
299static struct platform_device spigpio_device = {
300    .name = "spi_gpio",
301    .id = 1,
302    .dev = {
303        .platform_data = &spigpio_platform_data,
304    },
305};
306
307static struct spi_board_info qi_lb60_spi_board_info[] = {
308    {
309        .modalias = "ili8960",
310        .controller_data = (void *)JZ_GPIO_PORTC(21),
311        .chip_select = 0,
312        .bus_num = 1,
313        .max_speed_hz = 30 * 1000,
314    },
315};
316
317/* Battery */
318static struct jz_battery_platform_data qi_lb60_battery_pdata = {
319    .gpio_charge = JZ_GPIO_PORTC(27),
320    .gpio_charge_active_low = 1,
321    .info = {
322        .name = "battery",
323        .technology = POWER_SUPPLY_TECHNOLOGY_LIPO,
324        .voltage_max_design = 4200000,
325        .voltage_min_design = 3600000,
326    },
327};
328
329/* GPIO Key: power */
330static struct gpio_keys_button qi_lb60_gpio_keys_buttons[] = {
331    [0] = {
332        .code = KEY_POWER,
333        .gpio = JZ_GPIO_PORTD(29),
334        .active_low = 1,
335        .desc = "Power",
336        .wakeup = 1,
337    },
338};
339
340static struct gpio_keys_platform_data qi_lb60_gpio_keys_data = {
341    .nbuttons = ARRAY_SIZE(qi_lb60_gpio_keys_buttons),
342    .buttons = qi_lb60_gpio_keys_buttons,
343};
344
345static struct platform_device qi_lb60_gpio_keys = {
346    .name = "gpio-keys",
347    .id = -1,
348    .dev = {
349        .platform_data = &qi_lb60_gpio_keys_data,
350    }
351};
352
353static struct regulator_consumer_supply qi_lb60_mmc_regulator_consumer =
354    REGULATOR_SUPPLY("vmmc", "jz4740-mmc.0");
355
356static struct regulator_init_data qi_lb60_mmc_regulator_init_data = {
357    .num_consumer_supplies = 1,
358    .consumer_supplies = &qi_lb60_mmc_regulator_consumer,
359    .constraints = {
360        .name = "MMC power",
361        .min_uV = 3300000,
362        .max_uV = 3300000,
363        .valid_modes_mask = REGULATOR_MODE_NORMAL,
364        .valid_ops_mask = REGULATOR_CHANGE_STATUS,
365    },
366};
367
368static struct fixed_voltage_config qi_lb60_mmc_regulator_data = {
369    .supply_name = "MMC power",
370    .microvolts = 3300000,
371    .gpio = QI_LB60_GPIO_SD_VCC_EN_N,
372    .init_data = &qi_lb60_mmc_regulator_init_data,
373};
374
375static struct platform_device qi_lb60_mmc_regulator_device = {
376    .name = "reg-fixed-voltage",
377    .id = -1,
378    .dev = {
379        .platform_data = &qi_lb60_mmc_regulator_data,
380    }
381};
382
383static struct jz4740_mmc_platform_data qi_lb60_mmc_pdata = {
384    .gpio_card_detect = QI_LB60_GPIO_SD_CD,
385    .gpio_read_only = -1,
386};
387
388/* OHCI */
389static struct regulator_consumer_supply avt2_usb_regulator_consumer =
390    REGULATOR_SUPPLY("vbus", "jz4740-ohci");
391
392static struct regulator_init_data avt2_usb_regulator_init_data = {
393    .num_consumer_supplies = 1,
394    .consumer_supplies = &avt2_usb_regulator_consumer,
395    .constraints = {
396        .name = "USB power",
397        .min_uV = 5000000,
398        .max_uV = 5000000,
399        .valid_modes_mask = REGULATOR_MODE_NORMAL,
400        .valid_ops_mask = REGULATOR_CHANGE_STATUS,
401    },
402};
403
404static struct fixed_voltage_config avt2_usb_regulator_data = {
405    .supply_name = "USB power",
406    .microvolts = 5000000,
407    .gpio = JZ_GPIO_PORTB(17),
408    .init_data = &avt2_usb_regulator_init_data,
409};
410
411static struct platform_device avt2_usb_regulator_device = {
412    .name = "reg-fixed-voltage",
413    .id = -1,
414    .dev = {
415        .platform_data = &avt2_usb_regulator_data,
416    }
417};
418
419/* beeper */
420static struct platform_device qi_lb60_pwm_beeper = {
421    .name = "pwm-beeper",
422    .id = -1,
423    .dev = {
424        .platform_data = (void *)4,
425    },
426};
427
428/* charger */
429static char *qi_lb60_batteries[] = {
430    "battery",
431};
432
433static struct gpio_charger_platform_data qi_lb60_charger_pdata = {
434    .name = "usb",
435    .type = POWER_SUPPLY_TYPE_USB,
436    .gpio = JZ_GPIO_PORTD(28),
437    .gpio_active_low = 1,
438    .supplied_to = qi_lb60_batteries,
439    .num_supplicants = ARRAY_SIZE(qi_lb60_batteries),
440};
441
442static struct platform_device qi_lb60_charger_device = {
443    .name = "gpio-charger",
444    .dev = {
445        .platform_data = &qi_lb60_charger_pdata,
446    },
447};
448
449/* audio */
450static struct platform_device qi_lb60_audio_device = {
451    .name = "qi-lb60-audio",
452    .id = -1,
453};
454
455static struct platform_device *jz_platform_devices[] __initdata = {
456    &jz4740_udc_device,
457    &jz4740_udc_xceiv_device,
458    &jz4740_mmc_device,
459    &jz4740_nand_device,
460    &qi_lb60_keypad,
461    &spigpio_device,
462    &jz4740_framebuffer_device,
463    &jz4740_pcm_device,
464    &jz4740_i2s_device,
465    &jz4740_codec_device,
466    &jz4740_rtc_device,
467    &jz4740_adc_device,
468    &jz4740_pwm_device,
469    &jz4740_dma_device,
470    &qi_lb60_gpio_keys,
471    &qi_lb60_pwm_beeper,
472    &qi_lb60_charger_device,
473    &qi_lb60_audio_device,
474    &qi_lb60_mmc_regulator_device,
475};
476
477static void __init board_gpio_setup(void)
478{
479    /* We only need to enable/disable pullup here for pins used in generic
480     * drivers. Everything else is done by the drivers themselves. */
481    jz_gpio_disable_pullup(QI_LB60_GPIO_SD_VCC_EN_N);
482    jz_gpio_disable_pullup(QI_LB60_GPIO_SD_CD);
483}
484
485static int __init qi_lb60_init_platform_devices(void)
486{
487    jz4740_framebuffer_device.dev.platform_data = &qi_lb60_fb_pdata;
488    jz4740_nand_device.dev.platform_data = &qi_lb60_nand_pdata;
489    jz4740_adc_device.dev.platform_data = &qi_lb60_battery_pdata;
490    jz4740_mmc_device.dev.platform_data = &qi_lb60_mmc_pdata;
491
492    jz4740_serial_device_register();
493
494    spi_register_board_info(qi_lb60_spi_board_info,
495                ARRAY_SIZE(qi_lb60_spi_board_info));
496
497    if (is_avt2) {
498        platform_device_register(&avt2_usb_regulator_device);
499        platform_device_register(&jz4740_usb_ohci_device);
500    }
501
502    return platform_add_devices(jz_platform_devices,
503                    ARRAY_SIZE(jz_platform_devices));
504
505}
506
507struct jz4740_clock_board_data jz4740_clock_bdata = {
508    .ext_rate = 12000000,
509    .rtc_rate = 32768,
510};
511
512static __init int board_avt2(char *str)
513{
514    qi_lb60_mmc_pdata.card_detect_active_low = 1;
515    is_avt2 = true;
516
517    return 1;
518}
519__setup("avt2", board_avt2);
520
521static int __init qi_lb60_board_setup(void)
522{
523    printk(KERN_INFO "Qi Hardware JZ4740 QI %s setup\n",
524        is_avt2 ? "AVT2" : "LB60");
525
526    board_gpio_setup();
527
528    if (qi_lb60_init_platform_devices())
529        panic("Failed to initialize platform devices");
530
531    return 0;
532}
533arch_initcall(qi_lb60_board_setup);
534

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