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Linux/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 
 27 #include <asm/mach-jz4740/jz4740_fb.h>
 28 #include <asm/mach-jz4740/jz4740_mmc.h>
 29 #include <asm/mach-jz4740/jz4740_nand.h>
 30 
 31 #include <linux/regulator/fixed.h>
 32 #include <linux/regulator/machine.h>
 33 
 34 #include <linux/leds_pwm.h>
 35 
 36 #include <asm/mach-jz4740/platform.h>
 37 
 38 #include "clock.h"
 39 
 40 static bool is_avt2;
 41 
 42 /* GPIOs */
 43 #define QI_LB60_GPIO_SD_CD              JZ_GPIO_PORTD(0)
 44 #define QI_LB60_GPIO_SD_VCC_EN_N        JZ_GPIO_PORTD(2)
 45 
 46 #define QI_LB60_GPIO_KEYOUT(x)          (JZ_GPIO_PORTC(10) + (x))
 47 #define QI_LB60_GPIO_KEYIN(x)           (JZ_GPIO_PORTD(18) + (x))
 48 #define QI_LB60_GPIO_KEYIN8             JZ_GPIO_PORTD(26)
 49 
 50 /* NAND */
 51 static struct nand_ecclayout qi_lb60_ecclayout_1gb = {
 52 /*      .eccbytes = 36,
 53         .eccpos = {
 54                 6,  7,  8,  9,  10, 11, 12, 13,
 55                 14, 15, 16, 17, 18, 19, 20, 21,
 56                 22, 23, 24, 25, 26, 27, 28, 29,
 57                 30, 31, 32, 33, 34, 35, 36, 37,
 58                 38, 39, 40, 41
 59         },*/
 60         .oobfree = {
 61                 { .offset = 2, .length = 4 },
 62                 { .offset = 42, .length = 22 }
 63         },
 64 };
 65 
 66 /* Early prototypes of the QI LB60 had only 1GB of NAND.
 67  * In order to support these devices aswell the partition and ecc layout is
 68  * initalized depending on the NAND size */
 69 static struct mtd_partition qi_lb60_partitions_1gb[] = {
 70         {
 71                 .name = "NAND BOOT partition",
 72                 .offset = 0 * 0x100000,
 73                 .size = 4 * 0x100000,
 74         },
 75         {
 76                 .name = "NAND KERNEL partition",
 77                 .offset = 4 * 0x100000,
 78                 .size = 4 * 0x100000,
 79         },
 80         {
 81                 .name = "NAND ROOTFS partition",
 82                 .offset = 8 * 0x100000,
 83                 .size = (504 + 512) * 0x100000,
 84         },
 85 };
 86 
 87 static struct nand_ecclayout qi_lb60_ecclayout_2gb = {
 88 /*      .eccbytes = 72,
 89         .eccpos = {
 90                 12, 13, 14, 15, 16, 17, 18, 19,
 91                 20, 21, 22, 23, 24, 25, 26, 27,
 92                 28, 29, 30, 31, 32, 33, 34, 35,
 93                 36, 37, 38, 39, 40, 41, 42, 43,
 94                 44, 45, 46, 47, 48, 49, 50, 51,
 95                 52, 53, 54, 55, 56, 57, 58, 59,
 96                 60, 61, 62, 63, 64, 65, 66, 67,
 97                 68, 69, 70, 71, 72, 73, 74, 75,
 98                 76, 77, 78, 79, 80, 81, 82, 83
 99         },*/
100         .oobfree = {
101                 { .offset = 2, .length = 10 },
102                 { .offset = 84, .length = 44 },
103         },
104 };
105 
106 static struct mtd_partition qi_lb60_partitions_2gb[] = {
107         {
108                 .name = "NAND BOOT partition",
109                 .offset = 0 * 0x100000,
110                 .size = 4 * 0x100000,
111         },
112         {
113                 .name = "NAND KERNEL partition",
114                 .offset = 4 * 0x100000,
115                 .size = 4 * 0x100000,
116         },
117         {
118                 .name = "NAND ROOTFS partition",
119                 .offset = 8 * 0x100000,
120                 .size = (504 + 512 + 1024) * 0x100000,
121         },
122 };
123 
124 static void qi_lb60_nand_ident(struct platform_device *pdev,
125                 struct nand_chip *chip, struct mtd_partition **partitions,
126                 int *num_partitions)
127 {
128         if (chip->page_shift == 12) {
129                 chip->ecc.layout = &qi_lb60_ecclayout_2gb;
130                 *partitions = qi_lb60_partitions_2gb;
131                 *num_partitions = ARRAY_SIZE(qi_lb60_partitions_2gb);
132         } else {
133                 chip->ecc.layout = &qi_lb60_ecclayout_1gb;
134                 *partitions = qi_lb60_partitions_1gb;
135                 *num_partitions = ARRAY_SIZE(qi_lb60_partitions_1gb);
136         }
137 }
138 
139 static struct jz_nand_platform_data qi_lb60_nand_pdata = {
140         .ident_callback = qi_lb60_nand_ident,
141         .busy_gpio = 94,
142 };
143 
144 /* Keyboard*/
145 
146 #define KEY_QI_QI       KEY_F13
147 #define KEY_QI_UPRED    KEY_RIGHTALT
148 #define KEY_QI_VOLUP    KEY_VOLUMEUP
149 #define KEY_QI_VOLDOWN  KEY_VOLUMEDOWN
150 #define KEY_QI_FN       KEY_LEFTCTRL
151 
152 static const uint32_t qi_lb60_keymap[] = {
153         KEY(0, 0, KEY_F1),      /* S2 */
154         KEY(0, 1, KEY_F2),      /* S3 */
155         KEY(0, 2, KEY_F3),      /* S4 */
156         KEY(0, 3, KEY_F4),      /* S5 */
157         KEY(0, 4, KEY_F5),      /* S6 */
158         KEY(0, 5, KEY_F6),      /* S7 */
159         KEY(0, 6, KEY_F7),      /* S8 */
160 
161         KEY(1, 0, KEY_Q),       /* S10 */
162         KEY(1, 1, KEY_W),       /* S11 */
163         KEY(1, 2, KEY_E),       /* S12 */
164         KEY(1, 3, KEY_R),       /* S13 */
165         KEY(1, 4, KEY_T),       /* S14 */
166         KEY(1, 5, KEY_Y),       /* S15 */
167         KEY(1, 6, KEY_U),       /* S16 */
168         KEY(1, 7, KEY_I),       /* S17 */
169         KEY(2, 0, KEY_A),       /* S18 */
170         KEY(2, 1, KEY_S),       /* S19 */
171         KEY(2, 2, KEY_D),       /* S20 */
172         KEY(2, 3, KEY_F),       /* S21 */
173         KEY(2, 4, KEY_G),       /* S22 */
174         KEY(2, 5, KEY_H),       /* S23 */
175         KEY(2, 6, KEY_J),       /* S24 */
176         KEY(2, 7, KEY_K),       /* S25 */
177         KEY(3, 0, KEY_ESC),     /* S26 */
178         KEY(3, 1, KEY_Z),       /* S27 */
179         KEY(3, 2, KEY_X),       /* S28 */
180         KEY(3, 3, KEY_C),       /* S29 */
181         KEY(3, 4, KEY_V),       /* S30 */
182         KEY(3, 5, KEY_B),       /* S31 */
183         KEY(3, 6, KEY_N),       /* S32 */
184         KEY(3, 7, KEY_M),       /* S33 */
185         KEY(4, 0, KEY_TAB),     /* S34 */
186         KEY(4, 1, KEY_CAPSLOCK),        /* S35 */
187         KEY(4, 2, KEY_BACKSLASH),       /* S36 */
188         KEY(4, 3, KEY_APOSTROPHE),      /* S37 */
189         KEY(4, 4, KEY_COMMA),   /* S38 */
190         KEY(4, 5, KEY_DOT),     /* S39 */
191         KEY(4, 6, KEY_SLASH),   /* S40 */
192         KEY(4, 7, KEY_UP),      /* S41 */
193         KEY(5, 0, KEY_O),       /* S42 */
194         KEY(5, 1, KEY_L),       /* S43 */
195         KEY(5, 2, KEY_EQUAL),   /* S44 */
196         KEY(5, 3, KEY_QI_UPRED),        /* S45 */
197         KEY(5, 4, KEY_SPACE),   /* S46 */
198         KEY(5, 5, KEY_QI_QI),   /* S47 */
199         KEY(5, 6, KEY_RIGHTCTRL),       /* S48 */
200         KEY(5, 7, KEY_LEFT),    /* S49 */
201         KEY(6, 0, KEY_F8),      /* S50 */
202         KEY(6, 1, KEY_P),       /* S51 */
203         KEY(6, 2, KEY_BACKSPACE),/* S52 */
204         KEY(6, 3, KEY_ENTER),   /* S53 */
205         KEY(6, 4, KEY_QI_VOLUP),        /* S54 */
206         KEY(6, 5, KEY_QI_VOLDOWN),      /* S55 */
207         KEY(6, 6, KEY_DOWN),    /* S56 */
208         KEY(6, 7, KEY_RIGHT),   /* S57 */
209 
210         KEY(7, 0, KEY_LEFTSHIFT),       /* S58 */
211         KEY(7, 1, KEY_LEFTALT), /* S59 */
212         KEY(7, 2, KEY_QI_FN),   /* S60 */
213 };
214 
215 static const struct matrix_keymap_data qi_lb60_keymap_data = {
216         .keymap         = qi_lb60_keymap,
217         .keymap_size    = ARRAY_SIZE(qi_lb60_keymap),
218 };
219 
220 static const unsigned int qi_lb60_keypad_cols[] = {
221         QI_LB60_GPIO_KEYOUT(0),
222         QI_LB60_GPIO_KEYOUT(1),
223         QI_LB60_GPIO_KEYOUT(2),
224         QI_LB60_GPIO_KEYOUT(3),
225         QI_LB60_GPIO_KEYOUT(4),
226         QI_LB60_GPIO_KEYOUT(5),
227         QI_LB60_GPIO_KEYOUT(6),
228         QI_LB60_GPIO_KEYOUT(7),
229 };
230 
231 static const unsigned int qi_lb60_keypad_rows[] = {
232         QI_LB60_GPIO_KEYIN(0),
233         QI_LB60_GPIO_KEYIN(1),
234         QI_LB60_GPIO_KEYIN(2),
235         QI_LB60_GPIO_KEYIN(3),
236         QI_LB60_GPIO_KEYIN(4),
237         QI_LB60_GPIO_KEYIN(5),
238         QI_LB60_GPIO_KEYIN(6),
239         QI_LB60_GPIO_KEYIN8,
240 };
241 
242 static struct matrix_keypad_platform_data qi_lb60_pdata = {
243         .keymap_data = &qi_lb60_keymap_data,
244         .col_gpios      = qi_lb60_keypad_cols,
245         .row_gpios      = qi_lb60_keypad_rows,
246         .num_col_gpios  = ARRAY_SIZE(qi_lb60_keypad_cols),
247         .num_row_gpios  = ARRAY_SIZE(qi_lb60_keypad_rows),
248         .col_scan_delay_us      = 10,
249         .debounce_ms            = 10,
250         .wakeup                 = 1,
251         .active_low             = 1,
252 };
253 
254 static struct platform_device qi_lb60_keypad = {
255         .name           = "matrix-keypad",
256         .id             = -1,
257         .dev            = {
258                 .platform_data = &qi_lb60_pdata,
259         },
260 };
261 
262 /* Display */
263 static struct fb_videomode qi_lb60_video_modes[] = {
264         {
265                 .name = "320x240",
266                 .xres = 320,
267                 .yres = 240,
268                 .refresh = 30,
269                 .left_margin = 140,
270                 .right_margin = 273,
271                 .upper_margin = 20,
272                 .lower_margin = 2,
273                 .hsync_len = 1,
274                 .vsync_len = 1,
275                 .sync = 0,
276                 .vmode = FB_VMODE_NONINTERLACED,
277         },
278 };
279 
280 static struct jz4740_fb_platform_data qi_lb60_fb_pdata = {
281         .width          = 60,
282         .height         = 45,
283         .num_modes      = ARRAY_SIZE(qi_lb60_video_modes),
284         .modes          = qi_lb60_video_modes,
285         .bpp            = 24,
286         .lcd_type       = JZ_LCD_TYPE_8BIT_SERIAL,
287         .pixclk_falling_edge = 1,
288 };
289 
290 struct spi_gpio_platform_data spigpio_platform_data = {
291         .sck = JZ_GPIO_PORTC(23),
292         .mosi = JZ_GPIO_PORTC(22),
293         .miso = -1,
294         .num_chipselect = 1,
295 };
296 
297 static struct platform_device spigpio_device = {
298         .name = "spi_gpio",
299         .id   = 1,
300         .dev = {
301                 .platform_data = &spigpio_platform_data,
302         },
303 };
304 
305 static struct spi_board_info qi_lb60_spi_board_info[] = {
306         {
307                 .modalias = "ili8960",
308                 .controller_data = (void *)JZ_GPIO_PORTC(21),
309                 .chip_select = 0,
310                 .bus_num = 1,
311                 .max_speed_hz = 30 * 1000,
312                 .mode = SPI_3WIRE,
313         },
314 };
315 
316 /* Battery */
317 static 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 */
329 static 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 
339 static 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 
344 static 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 
352 static 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 */
360 static struct regulator_consumer_supply avt2_usb_regulator_consumer =
361         REGULATOR_SUPPLY("vbus", "jz4740-ohci");
362 
363 static 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 
375 static 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 
382 static 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 */
391 static 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 static struct platform_device *jz_platform_devices[] __initdata = {
400         &jz4740_udc_device,
401         &jz4740_mmc_device,
402         &jz4740_nand_device,
403         &qi_lb60_keypad,
404         &spigpio_device,
405         &jz4740_framebuffer_device,
406         &jz4740_pcm_device,
407         &jz4740_i2s_device,
408         &jz4740_codec_device,
409         &jz4740_rtc_device,
410         &jz4740_adc_device,
411         &qi_lb60_gpio_keys,
412         &qi_lb60_pwm_beeper,
413 };
414 
415 static void __init board_gpio_setup(void)
416 {
417         /* We only need to enable/disable pullup here for pins used in generic
418          * drivers. Everything else is done by the drivers themselfs. */
419         jz_gpio_disable_pullup(QI_LB60_GPIO_SD_VCC_EN_N);
420         jz_gpio_disable_pullup(QI_LB60_GPIO_SD_CD);
421 }
422 
423 static int __init qi_lb60_init_platform_devices(void)
424 {
425         jz4740_framebuffer_device.dev.platform_data = &qi_lb60_fb_pdata;
426         jz4740_nand_device.dev.platform_data = &qi_lb60_nand_pdata;
427         jz4740_adc_device.dev.platform_data = &qi_lb60_battery_pdata;
428         jz4740_mmc_device.dev.platform_data = &qi_lb60_mmc_pdata;
429 
430         jz4740_serial_device_register();
431 
432         spi_register_board_info(qi_lb60_spi_board_info,
433                                 ARRAY_SIZE(qi_lb60_spi_board_info));
434 
435         if (is_avt2) {
436                 platform_device_register(&avt2_usb_regulator_device);
437                 platform_device_register(&jz4740_usb_ohci_device);
438         }
439 
440         return platform_add_devices(jz_platform_devices,
441                                         ARRAY_SIZE(jz_platform_devices));
442 
443 }
444 
445 struct jz4740_clock_board_data jz4740_clock_bdata = {
446         .ext_rate = 12000000,
447         .rtc_rate = 32768,
448 };
449 
450 static __init int board_avt2(char *str)
451 {
452         qi_lb60_mmc_pdata.card_detect_active_low = 1;
453         is_avt2 = true;
454 
455         return 1;
456 }
457 __setup("avt2", board_avt2);
458 
459 static int __init qi_lb60_board_setup(void)
460 {
461         printk(KERN_INFO "Qi Hardware JZ4740 QI %s setup\n",
462                 is_avt2 ? "AVT2" : "LB60");
463 
464         board_gpio_setup();
465 
466         if (qi_lb60_init_platform_devices())
467                 panic("Failed to initalize platform devices\n");
468 
469         return 0;
470 }
471 arch_initcall(qi_lb60_board_setup);
472 

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