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/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 aswell the partition and ecc layout is
69 * initalized 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};
144
145/* Keyboard*/
146
147#define KEY_QI_QI KEY_F13
148#define KEY_QI_UPRED KEY_RIGHTALT
149#define KEY_QI_VOLUP KEY_VOLUMEUP
150#define KEY_QI_VOLDOWN KEY_VOLUMEDOWN
151#define KEY_QI_FN KEY_LEFTCTRL
152
153static const uint32_t qi_lb60_keymap[] = {
154    KEY(0, 0, KEY_F1), /* S2 */
155    KEY(0, 1, KEY_F2), /* S3 */
156    KEY(0, 2, KEY_F3), /* S4 */
157    KEY(0, 3, KEY_F4), /* S5 */
158    KEY(0, 4, KEY_F5), /* S6 */
159    KEY(0, 5, KEY_F6), /* S7 */
160    KEY(0, 6, KEY_F7), /* S8 */
161
162    KEY(1, 0, KEY_Q), /* S10 */
163    KEY(1, 1, KEY_W), /* S11 */
164    KEY(1, 2, KEY_E), /* S12 */
165    KEY(1, 3, KEY_R), /* S13 */
166    KEY(1, 4, KEY_T), /* S14 */
167    KEY(1, 5, KEY_Y), /* S15 */
168    KEY(1, 6, KEY_U), /* S16 */
169    KEY(1, 7, KEY_I), /* S17 */
170    KEY(2, 0, KEY_A), /* S18 */
171    KEY(2, 1, KEY_S), /* S19 */
172    KEY(2, 2, KEY_D), /* S20 */
173    KEY(2, 3, KEY_F), /* S21 */
174    KEY(2, 4, KEY_G), /* S22 */
175    KEY(2, 5, KEY_H), /* S23 */
176    KEY(2, 6, KEY_J), /* S24 */
177    KEY(2, 7, KEY_K), /* S25 */
178    KEY(3, 0, KEY_ESC), /* S26 */
179    KEY(3, 1, KEY_Z), /* S27 */
180    KEY(3, 2, KEY_X), /* S28 */
181    KEY(3, 3, KEY_C), /* S29 */
182    KEY(3, 4, KEY_V), /* S30 */
183    KEY(3, 5, KEY_B), /* S31 */
184    KEY(3, 6, KEY_N), /* S32 */
185    KEY(3, 7, KEY_M), /* S33 */
186    KEY(4, 0, KEY_TAB), /* S34 */
187    KEY(4, 1, KEY_CAPSLOCK), /* S35 */
188    KEY(4, 2, KEY_BACKSLASH), /* S36 */
189    KEY(4, 3, KEY_APOSTROPHE), /* S37 */
190    KEY(4, 4, KEY_COMMA), /* S38 */
191    KEY(4, 5, KEY_DOT), /* S39 */
192    KEY(4, 6, KEY_SLASH), /* S40 */
193    KEY(4, 7, KEY_UP), /* S41 */
194    KEY(5, 0, KEY_O), /* S42 */
195    KEY(5, 1, KEY_L), /* S43 */
196    KEY(5, 2, KEY_EQUAL), /* S44 */
197    KEY(5, 3, KEY_QI_UPRED), /* S45 */
198    KEY(5, 4, KEY_SPACE), /* S46 */
199    KEY(5, 5, KEY_QI_QI), /* S47 */
200    KEY(5, 6, KEY_RIGHTCTRL), /* S48 */
201    KEY(5, 7, KEY_LEFT), /* S49 */
202    KEY(6, 0, KEY_F8), /* S50 */
203    KEY(6, 1, KEY_P), /* S51 */
204    KEY(6, 2, KEY_BACKSPACE),/* S52 */
205    KEY(6, 3, KEY_ENTER), /* S53 */
206    KEY(6, 4, KEY_QI_VOLUP), /* S54 */
207    KEY(6, 5, KEY_QI_VOLDOWN), /* S55 */
208    KEY(6, 6, KEY_DOWN), /* S56 */
209    KEY(6, 7, KEY_RIGHT), /* S57 */
210
211    KEY(7, 0, KEY_LEFTSHIFT), /* S58 */
212    KEY(7, 1, KEY_LEFTALT), /* S59 */
213    KEY(7, 2, KEY_QI_FN), /* S60 */
214};
215
216static const struct matrix_keymap_data qi_lb60_keymap_data = {
217    .keymap = qi_lb60_keymap,
218    .keymap_size = ARRAY_SIZE(qi_lb60_keymap),
219};
220
221static const unsigned int qi_lb60_keypad_cols[] = {
222    QI_LB60_GPIO_KEYOUT(0),
223    QI_LB60_GPIO_KEYOUT(1),
224    QI_LB60_GPIO_KEYOUT(2),
225    QI_LB60_GPIO_KEYOUT(3),
226    QI_LB60_GPIO_KEYOUT(4),
227    QI_LB60_GPIO_KEYOUT(5),
228    QI_LB60_GPIO_KEYOUT(6),
229    QI_LB60_GPIO_KEYOUT(7),
230};
231
232static const unsigned int qi_lb60_keypad_rows[] = {
233    QI_LB60_GPIO_KEYIN(0),
234    QI_LB60_GPIO_KEYIN(1),
235    QI_LB60_GPIO_KEYIN(2),
236    QI_LB60_GPIO_KEYIN(3),
237    QI_LB60_GPIO_KEYIN(4),
238    QI_LB60_GPIO_KEYIN(5),
239    QI_LB60_GPIO_KEYIN(6),
240    QI_LB60_GPIO_KEYIN8,
241};
242
243static struct matrix_keypad_platform_data qi_lb60_pdata = {
244    .keymap_data = &qi_lb60_keymap_data,
245    .col_gpios = qi_lb60_keypad_cols,
246    .row_gpios = qi_lb60_keypad_rows,
247    .num_col_gpios = ARRAY_SIZE(qi_lb60_keypad_cols),
248    .num_row_gpios = ARRAY_SIZE(qi_lb60_keypad_rows),
249    .col_scan_delay_us = 10,
250    .debounce_ms = 10,
251    .wakeup = 1,
252    .active_low = 1,
253};
254
255static struct platform_device qi_lb60_keypad = {
256    .name = "matrix-keypad",
257    .id = -1,
258    .dev = {
259        .platform_data = &qi_lb60_pdata,
260    },
261};
262
263/* Display */
264static struct fb_videomode qi_lb60_video_modes[] = {
265    {
266        .name = "320x240",
267        .xres = 320,
268        .yres = 240,
269        .refresh = 30,
270        .left_margin = 140,
271        .right_margin = 273,
272        .upper_margin = 20,
273        .lower_margin = 2,
274        .hsync_len = 1,
275        .vsync_len = 1,
276        .sync = 0,
277        .vmode = FB_VMODE_NONINTERLACED,
278    },
279};
280
281static struct jz4740_fb_platform_data qi_lb60_fb_pdata = {
282    .width = 60,
283    .height = 45,
284    .num_modes = ARRAY_SIZE(qi_lb60_video_modes),
285    .modes = qi_lb60_video_modes,
286    .bpp = 24,
287    .lcd_type = JZ_LCD_TYPE_8BIT_SERIAL,
288    .pixclk_falling_edge = 1,
289};
290
291struct spi_gpio_platform_data spigpio_platform_data = {
292    .sck = JZ_GPIO_PORTC(23),
293    .mosi = JZ_GPIO_PORTC(22),
294    .miso = -1,
295    .num_chipselect = 1,
296};
297
298static struct platform_device spigpio_device = {
299    .name = "spi_gpio",
300    .id = 1,
301    .dev = {
302        .platform_data = &spigpio_platform_data,
303    },
304};
305
306static struct spi_board_info qi_lb60_spi_board_info[] = {
307    {
308        .modalias = "ili8960",
309        .controller_data = (void *)JZ_GPIO_PORTC(21),
310        .chip_select = 0,
311        .bus_num = 1,
312        .max_speed_hz = 30 * 1000,
313    },
314};
315
316/* Battery */
317static struct jz_battery_platform_data qi_lb60_battery_pdata = {
318    .gpio_charge = JZ_GPIO_PORTC(27),
319    .gpio_charge_active_low = 1,
320    .info = {
321        .name = "battery",
322        .technology = POWER_SUPPLY_TECHNOLOGY_LIPO,
323        .voltage_max_design = 4200000,
324        .voltage_min_design = 3600000,
325    },
326};
327
328/* GPIO Key: power */
329static struct gpio_keys_button qi_lb60_gpio_keys_buttons[] = {
330    [0] = {
331        .code = KEY_POWER,
332        .gpio = JZ_GPIO_PORTD(29),
333        .active_low = 1,
334        .desc = "Power",
335        .wakeup = 1,
336    },
337};
338
339static struct gpio_keys_platform_data qi_lb60_gpio_keys_data = {
340    .nbuttons = ARRAY_SIZE(qi_lb60_gpio_keys_buttons),
341    .buttons = qi_lb60_gpio_keys_buttons,
342};
343
344static struct platform_device qi_lb60_gpio_keys = {
345    .name = "gpio-keys",
346    .id = -1,
347    .dev = {
348        .platform_data = &qi_lb60_gpio_keys_data,
349    }
350};
351
352static struct jz4740_mmc_platform_data qi_lb60_mmc_pdata = {
353    .gpio_card_detect = QI_LB60_GPIO_SD_CD,
354    .gpio_read_only = -1,
355    .gpio_power = QI_LB60_GPIO_SD_VCC_EN_N,
356    .power_active_low = 1,
357};
358
359/* OHCI */
360static struct regulator_consumer_supply avt2_usb_regulator_consumer =
361    REGULATOR_SUPPLY("vbus", "jz4740-ohci");
362
363static struct regulator_init_data avt2_usb_regulator_init_data = {
364    .num_consumer_supplies = 1,
365    .consumer_supplies = &avt2_usb_regulator_consumer,
366    .constraints = {
367        .name = "USB power",
368        .min_uV = 5000000,
369        .max_uV = 5000000,
370        .valid_modes_mask = REGULATOR_MODE_NORMAL,
371        .valid_ops_mask = REGULATOR_CHANGE_STATUS,
372    },
373};
374
375static struct fixed_voltage_config avt2_usb_regulator_data = {
376    .supply_name = "USB power",
377    .microvolts = 5000000,
378    .gpio = JZ_GPIO_PORTB(17),
379    .init_data = &avt2_usb_regulator_init_data,
380};
381
382static struct platform_device avt2_usb_regulator_device = {
383    .name = "reg-fixed-voltage",
384    .id = -1,
385    .dev = {
386        .platform_data = &avt2_usb_regulator_data,
387    }
388};
389
390/* beeper */
391static struct platform_device qi_lb60_pwm_beeper = {
392    .name = "pwm-beeper",
393    .id = -1,
394    .dev = {
395        .platform_data = (void *)4,
396    },
397};
398
399/* charger */
400static char *qi_lb60_batteries[] = {
401    "battery",
402};
403
404static struct gpio_charger_platform_data qi_lb60_charger_pdata = {
405    .name = "usb",
406    .type = POWER_SUPPLY_TYPE_USB,
407    .gpio = JZ_GPIO_PORTD(28),
408    .gpio_active_low = 1,
409    .batteries = qi_lb60_batteries,
410    .num_batteries = ARRAY_SIZE(qi_lb60_batteries),
411};
412
413static struct platform_device qi_lb60_charger_device = {
414    .name = "gpio-charger",
415    .dev = {
416        .platform_data = &qi_lb60_charger_pdata,
417    },
418};
419
420
421static struct platform_device *jz_platform_devices[] __initdata = {
422    &jz4740_udc_device,
423    &jz4740_mmc_device,
424    &jz4740_nand_device,
425    &qi_lb60_keypad,
426    &spigpio_device,
427    &jz4740_framebuffer_device,
428    &jz4740_pcm_device,
429    &jz4740_i2s_device,
430    &jz4740_codec_device,
431    &jz4740_rtc_device,
432    &jz4740_adc_device,
433    &qi_lb60_gpio_keys,
434    &qi_lb60_pwm_beeper,
435    &qi_lb60_charger_device,
436};
437
438static void __init board_gpio_setup(void)
439{
440    /* We only need to enable/disable pullup here for pins used in generic
441     * drivers. Everything else is done by the drivers themselfs. */
442    jz_gpio_disable_pullup(QI_LB60_GPIO_SD_VCC_EN_N);
443    jz_gpio_disable_pullup(QI_LB60_GPIO_SD_CD);
444}
445
446static int __init qi_lb60_init_platform_devices(void)
447{
448    jz4740_framebuffer_device.dev.platform_data = &qi_lb60_fb_pdata;
449    jz4740_nand_device.dev.platform_data = &qi_lb60_nand_pdata;
450    jz4740_adc_device.dev.platform_data = &qi_lb60_battery_pdata;
451    jz4740_mmc_device.dev.platform_data = &qi_lb60_mmc_pdata;
452
453    jz4740_serial_device_register();
454
455    spi_register_board_info(qi_lb60_spi_board_info,
456                ARRAY_SIZE(qi_lb60_spi_board_info));
457
458    if (is_avt2) {
459        platform_device_register(&avt2_usb_regulator_device);
460        platform_device_register(&jz4740_usb_ohci_device);
461    }
462
463    return platform_add_devices(jz_platform_devices,
464                    ARRAY_SIZE(jz_platform_devices));
465
466}
467
468struct jz4740_clock_board_data jz4740_clock_bdata = {
469    .ext_rate = 12000000,
470    .rtc_rate = 32768,
471};
472
473static __init int board_avt2(char *str)
474{
475    qi_lb60_mmc_pdata.card_detect_active_low = 1;
476    is_avt2 = true;
477
478    return 1;
479}
480__setup("avt2", board_avt2);
481
482static int __init qi_lb60_board_setup(void)
483{
484    printk(KERN_INFO "Qi Hardware JZ4740 QI %s setup\n",
485        is_avt2 ? "AVT2" : "LB60");
486
487    board_gpio_setup();
488
489    if (qi_lb60_init_platform_devices())
490        panic("Failed to initalize platform devices\n");
491
492    return 0;
493}
494arch_initcall(qi_lb60_board_setup);
495

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