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

1/*
2 * linux/arch/mips/jz4740/board-qi_lb60.c
3 *
4 * QI_LB60 setup routines.
5 *
6 * Copyright (c) 2009 Qi Hardware inc.,
7 * Author: Xiangfu Liu <xiangfu@qi-hardware.com>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 or later
11 * as published by the Free Software Foundation.
12 */
13
14#include <linux/kernel.h>
15#include <linux/init.h>
16#include <linux/gpio.h>
17
18#include <asm/mach-jz4740/board-qi_lb60.h>
19#include <asm/mach-jz4740/platform.h>
20
21#include <linux/input.h>
22#include <linux/gpio_keys.h>
23#include <linux/mtd/jz4740_nand.h>
24#include <linux/jz4740_fb.h>
25#include <linux/input/matrix_keypad.h>
26#include <linux/mtd/jz4740_nand.h>
27#include <linux/spi/spi.h>
28#include <linux/spi/spi_gpio.h>
29#include <linux/power_supply.h>
30#include <linux/power/jz4740-battery.h>
31#include <linux/power/gpio-charger.h>
32#include <linux/mmc/jz4740_mmc.h>
33
34#include "clock.h"
35
36/* NAND */
37static struct nand_ecclayout qi_lb60_ecclayout_1gb = {
38    .eccbytes = 36,
39    .eccpos = {
40        6, 7, 8, 9, 10, 11, 12, 13,
41        14, 15, 16, 17, 18, 19, 20, 21,
42        22, 23, 24, 25, 26, 27, 28, 29,
43        30, 31, 32, 33, 34, 35, 36, 37,
44        38, 39, 40, 41},
45    .oobfree = {
46        {.offset = 2,
47         .length = 4},
48        {.offset = 42,
49         .length = 22}}
50};
51
52static struct mtd_partition qi_lb60_partitions_1gb[] = {
53    { .name = "NAND BOOT partition",
54      .offset = 0 * 0x100000,
55      .size = 4 * 0x100000,
56     },
57    { .name = "NAND KERNEL partition",
58      .offset = 4 * 0x100000,
59      .size = 4 * 0x100000,
60     },
61    { .name = "NAND ROOTFS partition",
62      .offset = 8 * 0x100000,
63      .size = (504 + 512) * 0x100000,
64     },
65};
66
67static struct nand_ecclayout qi_lb60_ecclayout_2gb = {
68    .eccbytes = 72,
69    .eccpos = {
70        12, 13, 14, 15, 16, 17, 18, 19,
71        20, 21, 22, 23, 24, 25, 26, 27,
72        28, 29, 30, 31, 32, 33, 34, 35,
73        36, 37, 38, 39, 40, 41, 42, 43,
74        44, 45, 46, 47, 48, 49, 50, 51,
75        52, 53, 54, 55, 56, 57, 58, 59,
76        60, 61, 62, 63, 64, 65, 66, 67,
77        68, 69, 70, 71, 72, 73, 74, 75,
78        76, 77, 78, 79, 80, 81, 82, 83},
79    .oobfree = {
80         {.offset = 2,
81         .length = 10},
82        {.offset = 84,
83         .length = 44}}
84};
85
86static struct mtd_partition qi_lb60_partitions_2gb[] = {
87    { .name = "NAND BOOT partition",
88      .offset = 0 * 0x100000,
89      .size = 4 * 0x100000,
90     },
91    { .name = "NAND KERNEL partition",
92      .offset = 4 * 0x100000,
93      .size = 4 * 0x100000,
94     },
95    { .name = "NAND ROOTFS partition",
96      .offset = 8 * 0x100000,
97      .size = 256 * 0x100000,
98     },
99    { .name = "NAND DATA partition",
100      .offset = 264 * 0x100000,
101      .size = 1784 * 0x100000,
102    },
103};
104
105static void qi_lb60_nand_ident(struct platform_device *pdev,
106                struct nand_chip *chip,
107                struct mtd_partition **partitions,
108                int *num_partitions)
109{
110    if (chip->page_shift == 12) {
111        chip->ecc.layout = &qi_lb60_ecclayout_2gb;
112        *partitions = qi_lb60_partitions_2gb;
113        *num_partitions = ARRAY_SIZE(qi_lb60_partitions_2gb);
114    } else {
115        chip->ecc.layout = &qi_lb60_ecclayout_1gb;
116        *partitions = qi_lb60_partitions_1gb;
117        *num_partitions = ARRAY_SIZE(qi_lb60_partitions_1gb);
118    }
119}
120
121static struct jz_nand_platform_data qi_lb60_nand_pdata = {
122    .ident_callback = qi_lb60_nand_ident,
123    .busy_gpio = 94,
124};
125
126/* Keyboard*/
127#define KEY_QI_VOLUP KEY_F11
128#define KEY_QI_VOLDOWN KEY_F12
129#define KEY_QI_QI KEY_F13
130#define KEY_QI_ACUTE KEY_GRAVE
131#define KEY_QI_FN KEY_LEFTCTRL
132#define KEY_QI_UPRED KEY_RIGHTALT
133
134static const uint32_t qi_lb60_keymap[] = {
135    KEY(0, 0, KEY_F1), /* S2 */
136    KEY(0, 1, KEY_F2), /* S3 */
137    KEY(0, 2, KEY_F3), /* S4 */
138    KEY(0, 3, KEY_F4), /* S5 */
139    KEY(0, 4, KEY_F5), /* S6 */
140    KEY(0, 5, KEY_F6), /* S7 */
141    KEY(0, 6, KEY_F7), /* S8 */
142
143    KEY(1, 0, KEY_Q), /* S10 */
144    KEY(1, 1, KEY_W), /* S11 */
145    KEY(1, 2, KEY_E), /* S12 */
146    KEY(1, 3, KEY_R), /* S13 */
147    KEY(1, 4, KEY_T), /* S14 */
148    KEY(1, 5, KEY_Y), /* S15 */
149    KEY(1, 6, KEY_U), /* S16 */
150    KEY(1, 7, KEY_I), /* S17 */
151    KEY(2, 0, KEY_A), /* S18 */
152    KEY(2, 1, KEY_S), /* S19 */
153    KEY(2, 2, KEY_D), /* S20 */
154    KEY(2, 3, KEY_F), /* S21 */
155    KEY(2, 4, KEY_G), /* S22 */
156    KEY(2, 5, KEY_H), /* S23 */
157    KEY(2, 6, KEY_J), /* S24 */
158    KEY(2, 7, KEY_K), /* S25 */
159    KEY(3, 0, KEY_ESC), /* S26 */
160    KEY(3, 1, KEY_Z), /* S27 */
161    KEY(3, 2, KEY_X), /* S28 */
162    KEY(3, 3, KEY_C), /* S29 */
163    KEY(3, 4, KEY_V), /* S30 */
164    KEY(3, 5, KEY_B), /* S31 */
165    KEY(3, 6, KEY_N), /* S32 */
166    KEY(3, 7, KEY_M), /* S33 */
167    KEY(4, 0, KEY_TAB), /* S34 */
168    KEY(4, 1, KEY_CAPSLOCK), /* S35 */
169    KEY(4, 2, KEY_BACKSLASH), /* S36 */
170    KEY(4, 3, KEY_QI_ACUTE), /* S37 */
171    KEY(4, 4, KEY_COMMA), /* S38 */
172    KEY(4, 5, KEY_DOT), /* S39 */
173    KEY(4, 6, KEY_SLASH), /* S40 */
174    KEY(4, 7, KEY_UP), /* S41 */
175    KEY(5, 0, KEY_O), /* S42 */
176    KEY(5, 1, KEY_L), /* S43 */
177    KEY(5, 2, KEY_EQUAL), /* S44 */
178    KEY(5, 3, KEY_QI_UPRED), /* S45 */
179    KEY(5, 4, KEY_SPACE), /* S46 */
180    KEY(5, 5, KEY_QI_QI), /* S47 */
181    KEY(5, 6, KEY_RIGHTCTRL), /* S48 */
182    KEY(5, 7, KEY_LEFT), /* S49 */
183    KEY(6, 0, KEY_F8), /* S50 */
184    KEY(6, 1, KEY_P), /* S51 */
185    KEY(6, 2, KEY_BACKSPACE),/* S52 */
186    KEY(6, 3, KEY_ENTER), /* S53 */
187    KEY(6, 4, KEY_QI_VOLUP), /* S54 */
188    KEY(6, 5, KEY_QI_VOLDOWN), /* S55 */
189    KEY(6, 6, KEY_DOWN), /* S56 */
190    KEY(6, 7, KEY_RIGHT), /* S57 */
191    KEY(7, 0, KEY_LEFTSHIFT), /* S58 */
192    KEY(7, 1, KEY_LEFTALT), /* S59 */
193    KEY(7, 2, KEY_QI_FN), /* S60 */
194};
195
196static const struct matrix_keymap_data qi_lb60_keymap_data = {
197    .keymap = qi_lb60_keymap,
198    .keymap_size = ARRAY_SIZE(qi_lb60_keymap),
199};
200
201static const unsigned int qi_lb60_keypad_cols[] = {
202    74, 75, 76, 77, 78, 79, 80, 81,
203};
204
205static const unsigned int qi_lb60_keypad_rows[] = {
206    114, 115, 116, 117, 118, 119, 120, 122,
207};
208
209static struct matrix_keypad_platform_data qi_lb60_pdata = {
210    .keymap_data = &qi_lb60_keymap_data,
211    .col_gpios = qi_lb60_keypad_cols,
212    .row_gpios = qi_lb60_keypad_rows,
213    .num_col_gpios = ARRAY_SIZE(qi_lb60_keypad_cols),
214    .num_row_gpios = ARRAY_SIZE(qi_lb60_keypad_rows),
215    .col_scan_delay_us = 10,
216    .debounce_ms = 10,
217    .wakeup = 1,
218    .active_low = 1,
219};
220
221static struct platform_device qi_lb60_keypad = {
222    .name = "matrix-keypad",
223    .id = -1,
224    .dev = {
225        .platform_data = &qi_lb60_pdata,
226    },
227};
228
229/* Display */
230static struct fb_videomode qi_lb60_video_modes[] = {
231    {
232        .name = "320x240",
233        .xres = 320,
234        .yres = 240,
235        .refresh = 30,
236        .left_margin = 140,
237        .right_margin = 273,
238        .upper_margin = 20,
239        .lower_margin = 2,
240        .hsync_len = 1,
241        .vsync_len = 1,
242        .sync = 0,
243        .vmode = FB_VMODE_NONINTERLACED,
244    },
245};
246
247static struct jz4740_fb_platform_data qi_lb60_fb_pdata = {
248    .width = 60,
249    .height = 45,
250    .num_modes = ARRAY_SIZE(qi_lb60_video_modes),
251    .modes = qi_lb60_video_modes,
252    .bpp = 24,
253    .lcd_type = JZ_LCD_TYPE_8BIT_SERIAL,
254    .pixclk_falling_edge = 1,
255};
256
257
258struct spi_gpio_platform_data spigpio_platform_data = {
259    .sck = JZ_GPIO_PORTC(23),
260    .mosi = JZ_GPIO_PORTC(22),
261    .miso = JZ_GPIO_PORTC(22),
262    .num_chipselect = 1,
263};
264
265static struct platform_device spigpio_device = {
266    .name = "spi_gpio",
267    .id = 1,
268    .dev = {
269        .platform_data = &spigpio_platform_data,
270    },
271};
272
273static struct spi_board_info qi_lb60_spi_board_info[] = {
274    {
275        .modalias = "gpm940b0",
276        .controller_data = (void*)JZ_GPIO_PORTC(21),
277        .chip_select = 0,
278        .bus_num = 1,
279        .max_speed_hz = 30 * 1000,
280    },
281};
282
283/* Battery */
284static struct jz_battery_platform_data qi_lb60_battery_pdata = {
285    .gpio_charge = GPIO_CHARG_STAT_N,
286    .gpio_charge_active_low = 1,
287    .info = {
288        .name = "battery",
289        .technology = POWER_SUPPLY_TECHNOLOGY_LIPO,
290        .voltage_max_design = 4200000,
291        .voltage_min_design = 3600000,
292    },
293};
294
295static char *qi_lb60_batteries[] = {
296    "battery",
297};
298
299static struct gpio_charger_platform_data qi_lb60_charger_pdata = {
300    .name = "USB",
301    .type = POWER_SUPPLY_TYPE_USB,
302    .gpio = GPIO_USB_DETE,
303    .gpio_active_low = 1,
304    .batteries = qi_lb60_batteries,
305    .num_batteries = ARRAY_SIZE(qi_lb60_batteries),
306};
307
308static struct platform_device qi_lb60_charger_device = {
309    .name = "gpio-charger",
310    .dev = {
311        .platform_data = &qi_lb60_charger_pdata,
312    },
313};
314
315/* GPIO Key: power */
316static struct gpio_keys_button qi_lb60_gpio_keys_buttons[] = {
317    [0] = {
318        .code = KEY_POWER,
319        .gpio = GPIO_WAKEUP_N,
320        .active_low = 1,
321        .desc = "Power",
322        .wakeup = 1,
323    },
324};
325
326static struct gpio_keys_platform_data qi_lb60_gpio_keys_data = {
327    .nbuttons = ARRAY_SIZE(qi_lb60_gpio_keys_buttons),
328    .buttons = qi_lb60_gpio_keys_buttons,
329};
330
331static struct platform_device qi_lb60_gpio_keys = {
332    .name = "gpio-keys",
333    .id = -1,
334    .dev = {
335        .platform_data = &qi_lb60_gpio_keys_data,
336    }
337};
338
339static struct jz4740_mmc_platform_data qi_lb60_mmc_pdata = {
340    .gpio_card_detect = JZ_GPIO_PORTD(0),
341    .gpio_read_only = -1,
342    .gpio_power = JZ_GPIO_PORTD(2),
343    .power_active_low = 1,
344};
345
346static struct platform_device *jz_platform_devices[] __initdata = {
347    &jz4740_usb_ohci_device,
348    &jz4740_usb_gdt_device,
349    &jz4740_mmc_device,
350    &jz4740_nand_device,
351    &qi_lb60_keypad,
352    &spigpio_device,
353    &jz4740_framebuffer_device,
354    &jz4740_i2s_device,
355    &jz4740_codec_device,
356    &jz4740_rtc_device,
357    &jz4740_adc_device,
358    &jz4740_battery_device,
359    &qi_lb60_gpio_keys,
360    &qi_lb60_charger_device,
361};
362
363static void __init board_gpio_setup(void)
364{
365    /* We only need to enable/disable pullup here for pins used in generic
366     * drivers. Everything else is done by the drivers themselfs. */
367    jz_gpio_disable_pullup(GPIO_SD_VCC_EN_N);
368    jz_gpio_disable_pullup(GPIO_SD_CD_N);
369}
370
371static int __init qi_lb60_init_platform_devices(void)
372{
373    jz4740_framebuffer_device.dev.platform_data = &qi_lb60_fb_pdata;
374    jz4740_nand_device.dev.platform_data = &qi_lb60_nand_pdata;
375    jz4740_battery_device.dev.platform_data = &qi_lb60_battery_pdata;
376    jz4740_mmc_device.dev.platform_data = &qi_lb60_mmc_pdata;
377
378    spi_register_board_info(qi_lb60_spi_board_info,
379                ARRAY_SIZE(qi_lb60_spi_board_info));
380
381    return platform_add_devices(jz_platform_devices,
382                    ARRAY_SIZE(jz_platform_devices));
383
384}
385
386struct jz4740_clock_board_data jz4740_clock_bdata = {
387    .ext_rate = 12000000,
388    .rtc_rate = 32768,
389};
390
391extern int jz_gpiolib_init(void);
392
393static __init int board_avt2(char *str)
394{
395    qi_lb60_mmc_pdata.card_detect_active_low = 1;
396    qi_lb60_mmc_pdata.power_active_low = 1;
397
398    return 1;
399}
400
401__setup("avt2", board_avt2);
402
403static int __init qi_lb60_board_setup(void)
404{
405    printk("Qi Hardware JZ4740 QI_LB60 setup\n");
406    if (jz_gpiolib_init())
407        panic("Failed to initalize jz gpio\n");
408
409    jz4740_clock_init();
410    board_gpio_setup();
411
412    if (qi_lb60_init_platform_devices())
413        panic("Failed to initalize platform devices\n");
414
415    return 0;
416}
417
418arch_initcall(qi_lb60_board_setup);
419

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