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-rw-r--r--arch/arm/mach-pxa/z2.c603
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diff --git a/arch/arm/mach-pxa/z2.c b/arch/arm/mach-pxa/z2.c
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1/*
2 * linux/arch/arm/mach-pxa/z2.c
3 *
4 * Support for the Zipit Z2 Handheld device.
5 *
6 * Copyright (C) 2009-2010 Marek Vasut <marek.vasut@gmail.com>
7 *
8 * Based on research and code by: Ken McGuire
9 * Based on mainstone.c as modified for the Zipit Z2.
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License version 2 as
13 * published by the Free Software Foundation.
14 */
15
16#include <linux/platform_device.h>
17#include <linux/mtd/mtd.h>
18#include <linux/mtd/partitions.h>
19#include <linux/pwm_backlight.h>
20#include <linux/dma-mapping.h>
21#include <linux/spi/spi.h>
22#include <linux/spi/libertas_spi.h>
23#include <linux/spi/lms283gf05.h>
24#include <linux/power_supply.h>
25#include <linux/mtd/physmap.h>
26#include <linux/gpio.h>
27#include <linux/gpio_keys.h>
28#include <linux/delay.h>
29
30#include <asm/mach-types.h>
31#include <asm/mach/arch.h>
32
33#include <mach/pxa27x.h>
34#include <mach/mfp-pxa27x.h>
35#include <mach/z2.h>
36#include <mach/pxafb.h>
37#include <mach/mmc.h>
38#include <mach/pxa27x_keypad.h>
39#include <mach/pxa2xx_spi.h>
40
41#include <plat/i2c.h>
42
43#include "generic.h"
44#include "devices.h"
45
46/******************************************************************************
47 * Pin configuration
48 ******************************************************************************/
49static unsigned long z2_pin_config[] = {
50
51 /* LCD - 16bpp Active TFT */
52 GPIO58_LCD_LDD_0,
53 GPIO59_LCD_LDD_1,
54 GPIO60_LCD_LDD_2,
55 GPIO61_LCD_LDD_3,
56 GPIO62_LCD_LDD_4,
57 GPIO63_LCD_LDD_5,
58 GPIO64_LCD_LDD_6,
59 GPIO65_LCD_LDD_7,
60 GPIO66_LCD_LDD_8,
61 GPIO67_LCD_LDD_9,
62 GPIO68_LCD_LDD_10,
63 GPIO69_LCD_LDD_11,
64 GPIO70_LCD_LDD_12,
65 GPIO71_LCD_LDD_13,
66 GPIO72_LCD_LDD_14,
67 GPIO73_LCD_LDD_15,
68 GPIO74_LCD_FCLK,
69 GPIO75_LCD_LCLK,
70 GPIO76_LCD_PCLK,
71 GPIO77_LCD_BIAS,
72 GPIO19_GPIO, /* LCD reset */
73 GPIO88_GPIO, /* LCD chipselect */
74
75 /* PWM */
76 GPIO115_PWM1_OUT, /* Keypad Backlight */
77 GPIO11_PWM2_OUT, /* LCD Backlight */
78
79 /* MMC */
80 GPIO32_MMC_CLK,
81 GPIO112_MMC_CMD,
82 GPIO92_MMC_DAT_0,
83 GPIO109_MMC_DAT_1,
84 GPIO110_MMC_DAT_2,
85 GPIO111_MMC_DAT_3,
86 GPIO96_GPIO, /* SD detect */
87
88 /* STUART */
89 GPIO46_STUART_RXD,
90 GPIO47_STUART_TXD,
91
92 /* Keypad */
93 GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
94 GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
95 GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
96 GPIO34_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
97 GPIO38_KP_MKIN_4 | WAKEUP_ON_LEVEL_HIGH,
98 GPIO16_KP_MKIN_5 | WAKEUP_ON_LEVEL_HIGH,
99 GPIO17_KP_MKIN_6 | WAKEUP_ON_LEVEL_HIGH,
100 GPIO103_KP_MKOUT_0,
101 GPIO104_KP_MKOUT_1,
102 GPIO105_KP_MKOUT_2,
103 GPIO106_KP_MKOUT_3,
104 GPIO107_KP_MKOUT_4,
105 GPIO108_KP_MKOUT_5,
106 GPIO35_KP_MKOUT_6,
107 GPIO41_KP_MKOUT_7,
108
109 /* I2C */
110 GPIO117_I2C_SCL,
111 GPIO118_I2C_SDA,
112
113 /* SSP1 */
114 GPIO23_SSP1_SCLK, /* SSP1_SCK */
115 GPIO25_SSP1_TXD, /* SSP1_TXD */
116 GPIO26_SSP1_RXD, /* SSP1_RXD */
117
118 /* SSP2 */
119 GPIO22_SSP2_SCLK, /* SSP2_SCK */
120 GPIO13_SSP2_TXD, /* SSP2_TXD */
121 GPIO40_SSP2_RXD, /* SSP2_RXD */
122
123 /* LEDs */
124 GPIO10_GPIO, /* WiFi LED */
125 GPIO83_GPIO, /* Charging LED */
126 GPIO85_GPIO, /* Charged LED */
127
128 /* I2S */
129 GPIO28_I2S_BITCLK_OUT,
130 GPIO29_I2S_SDATA_IN,
131 GPIO30_I2S_SDATA_OUT,
132 GPIO31_I2S_SYNC,
133 GPIO113_I2S_SYSCLK,
134
135 /* MISC */
136 GPIO0_GPIO, /* AC power detect */
137 GPIO1_GPIO, /* Power button */
138 GPIO37_GPIO, /* Headphone detect */
139 GPIO98_GPIO, /* Lid switch */
140 GPIO14_GPIO, /* WiFi Reset */
141 GPIO15_GPIO, /* WiFi Power */
142 GPIO24_GPIO, /* WiFi CS */
143 GPIO36_GPIO, /* WiFi IRQ */
144 GPIO88_GPIO, /* LCD CS */
145};
146
147/******************************************************************************
148 * NOR Flash
149 ******************************************************************************/
150#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
151static struct resource z2_flash_resource = {
152 .start = PXA_CS0_PHYS,
153 .end = PXA_CS0_PHYS + SZ_8M - 1,
154 .flags = IORESOURCE_MEM,
155};
156
157static struct mtd_partition z2_flash_parts[] = {
158 {
159 .name = "U-Boot Bootloader",
160 .offset = 0x0,
161 .size = 0x40000,
162 }, {
163 .name = "U-Boot Environment",
164 .offset = 0x40000,
165 .size = 0x60000,
166 }, {
167 .name = "Flash",
168 .offset = 0x60000,
169 .size = MTDPART_SIZ_FULL,
170 },
171};
172
173static struct physmap_flash_data z2_flash_data = {
174 .width = 2,
175 .parts = z2_flash_parts,
176 .nr_parts = ARRAY_SIZE(z2_flash_parts),
177};
178
179static struct platform_device z2_flash = {
180 .name = "physmap-flash",
181 .id = -1,
182 .resource = &z2_flash_resource,
183 .num_resources = 1,
184 .dev = {
185 .platform_data = &z2_flash_data,
186 },
187};
188
189static void __init z2_nor_init(void)
190{
191 platform_device_register(&z2_flash);
192}
193#else
194static inline void z2_nor_init(void) {}
195#endif
196
197/******************************************************************************
198 * Backlight
199 ******************************************************************************/
200#if defined(CONFIG_BACKLIGHT_PWM) || defined(CONFIG_BACKLIGHT_PWM_MODULE)
201static struct platform_pwm_backlight_data z2_backlight_data[] = {
202 [0] = {
203 /* Keypad Backlight */
204 .pwm_id = 1,
205 .max_brightness = 1023,
206 .dft_brightness = 512,
207 .pwm_period_ns = 1260320,
208 },
209 [1] = {
210 /* LCD Backlight */
211 .pwm_id = 2,
212 .max_brightness = 1023,
213 .dft_brightness = 512,
214 .pwm_period_ns = 1260320,
215 },
216};
217
218static struct platform_device z2_backlight_devices[2] = {
219 {
220 .name = "pwm-backlight",
221 .id = 0,
222 .dev = {
223 .platform_data = &z2_backlight_data[1],
224 },
225 },
226 {
227 .name = "pwm-backlight",
228 .id = 1,
229 .dev = {
230 .platform_data = &z2_backlight_data[0],
231 },
232 },
233};
234static void __init z2_pwm_init(void)
235{
236 platform_device_register(&z2_backlight_devices[0]);
237 platform_device_register(&z2_backlight_devices[1]);
238}
239#else
240static inline void z2_pwm_init(void) {}
241#endif
242
243/******************************************************************************
244 * Framebuffer
245 ******************************************************************************/
246#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
247static struct pxafb_mode_info z2_lcd_modes[] = {
248{
249 .pixclock = 192000,
250 .xres = 240,
251 .yres = 320,
252 .bpp = 16,
253
254 .left_margin = 4,
255 .right_margin = 8,
256 .upper_margin = 4,
257 .lower_margin = 8,
258
259 .hsync_len = 4,
260 .vsync_len = 4,
261},
262};
263
264static struct pxafb_mach_info z2_lcd_screen = {
265 .modes = z2_lcd_modes,
266 .num_modes = ARRAY_SIZE(z2_lcd_modes),
267 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_BIAS_ACTIVE_LOW |
268 LCD_ALTERNATE_MAPPING,
269};
270
271static void __init z2_lcd_init(void)
272{
273 set_pxa_fb_info(&z2_lcd_screen);
274}
275#else
276static inline void z2_lcd_init(void) {}
277#endif
278
279/******************************************************************************
280 * SD/MMC card controller
281 ******************************************************************************/
282#if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
283static struct pxamci_platform_data z2_mci_platform_data = {
284 .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
285 .gpio_card_detect = GPIO96_ZIPITZ2_SD_DETECT,
286 .gpio_power = -1,
287 .gpio_card_ro = -1,
288 .detect_delay_ms = 200,
289};
290
291static void __init z2_mmc_init(void)
292{
293 pxa_set_mci_info(&z2_mci_platform_data);
294}
295#else
296static inline void z2_mmc_init(void) {}
297#endif
298
299/******************************************************************************
300 * LEDs
301 ******************************************************************************/
302#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
303struct gpio_led z2_gpio_leds[] = {
304{
305 .name = "z2:green:wifi",
306 .default_trigger = "none",
307 .gpio = GPIO10_ZIPITZ2_LED_WIFI,
308 .active_low = 1,
309}, {
310 .name = "z2:green:charged",
311 .default_trigger = "none",
312 .gpio = GPIO85_ZIPITZ2_LED_CHARGED,
313 .active_low = 1,
314}, {
315 .name = "z2:amber:charging",
316 .default_trigger = "none",
317 .gpio = GPIO83_ZIPITZ2_LED_CHARGING,
318 .active_low = 1,
319},
320};
321
322static struct gpio_led_platform_data z2_gpio_led_info = {
323 .leds = z2_gpio_leds,
324 .num_leds = ARRAY_SIZE(z2_gpio_leds),
325};
326
327static struct platform_device z2_leds = {
328 .name = "leds-gpio",
329 .id = -1,
330 .dev = {
331 .platform_data = &z2_gpio_led_info,
332 }
333};
334
335static void __init z2_leds_init(void)
336{
337 platform_device_register(&z2_leds);
338}
339#else
340static inline void z2_leds_init(void) {}
341#endif
342
343/******************************************************************************
344 * GPIO keyboard
345 ******************************************************************************/
346#if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
347static unsigned int z2_matrix_keys[] = {
348 KEY(0, 0, KEY_OPTION),
349 KEY(1, 0, KEY_UP),
350 KEY(2, 0, KEY_DOWN),
351 KEY(3, 0, KEY_LEFT),
352 KEY(4, 0, KEY_RIGHT),
353 KEY(5, 0, KEY_END),
354 KEY(6, 0, KEY_KPPLUS),
355
356 KEY(0, 1, KEY_HOME),
357 KEY(1, 1, KEY_Q),
358 KEY(2, 1, KEY_I),
359 KEY(3, 1, KEY_G),
360 KEY(4, 1, KEY_X),
361 KEY(5, 1, KEY_ENTER),
362 KEY(6, 1, KEY_KPMINUS),
363
364 KEY(0, 2, KEY_PAGEUP),
365 KEY(1, 2, KEY_W),
366 KEY(2, 2, KEY_O),
367 KEY(3, 2, KEY_H),
368 KEY(4, 2, KEY_C),
369 KEY(5, 2, KEY_LEFTALT),
370
371 KEY(0, 3, KEY_PAGEDOWN),
372 KEY(1, 3, KEY_E),
373 KEY(2, 3, KEY_P),
374 KEY(3, 3, KEY_J),
375 KEY(4, 3, KEY_V),
376 KEY(5, 3, KEY_LEFTSHIFT),
377
378 KEY(0, 4, KEY_ESC),
379 KEY(1, 4, KEY_R),
380 KEY(2, 4, KEY_A),
381 KEY(3, 4, KEY_K),
382 KEY(4, 4, KEY_B),
383 KEY(5, 4, KEY_LEFTCTRL),
384
385 KEY(0, 5, KEY_TAB),
386 KEY(1, 5, KEY_T),
387 KEY(2, 5, KEY_S),
388 KEY(3, 5, KEY_L),
389 KEY(4, 5, KEY_N),
390 KEY(5, 5, KEY_SPACE),
391
392 KEY(0, 6, KEY_STOPCD),
393 KEY(1, 6, KEY_Y),
394 KEY(2, 6, KEY_D),
395 KEY(3, 6, KEY_BACKSPACE),
396 KEY(4, 6, KEY_M),
397 KEY(5, 6, KEY_COMMA),
398
399 KEY(0, 7, KEY_PLAYCD),
400 KEY(1, 7, KEY_U),
401 KEY(2, 7, KEY_F),
402 KEY(3, 7, KEY_Z),
403 KEY(4, 7, KEY_SEMICOLON),
404 KEY(5, 7, KEY_DOT),
405};
406
407static struct pxa27x_keypad_platform_data z2_keypad_platform_data = {
408 .matrix_key_rows = 7,
409 .matrix_key_cols = 8,
410 .matrix_key_map = z2_matrix_keys,
411 .matrix_key_map_size = ARRAY_SIZE(z2_matrix_keys),
412
413 .debounce_interval = 30,
414};
415
416static void __init z2_mkp_init(void)
417{
418 pxa_set_keypad_info(&z2_keypad_platform_data);
419}
420#else
421static inline void z2_mkp_init(void) {}
422#endif
423
424/******************************************************************************
425 * GPIO keys
426 ******************************************************************************/
427#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
428static struct gpio_keys_button z2_pxa_buttons[] = {
429 {KEY_POWER, GPIO1_ZIPITZ2_POWER_BUTTON, 0, "Power Button" },
430 {KEY_CLOSE, GPIO98_ZIPITZ2_LID_BUTTON, 0, "Lid Button" },
431};
432
433static struct gpio_keys_platform_data z2_pxa_keys_data = {
434 .buttons = z2_pxa_buttons,
435 .nbuttons = ARRAY_SIZE(z2_pxa_buttons),
436};
437
438static struct platform_device z2_pxa_keys = {
439 .name = "gpio-keys",
440 .id = -1,
441 .dev = {
442 .platform_data = &z2_pxa_keys_data,
443 },
444};
445
446static void __init z2_keys_init(void)
447{
448 platform_device_register(&z2_pxa_keys);
449}
450#else
451static inline void z2_keys_init(void) {}
452#endif
453
454/******************************************************************************
455 * SSP Devices - WiFi and LCD control
456 ******************************************************************************/
457#if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
458/* WiFi */
459static int z2_lbs_spi_setup(struct spi_device *spi)
460{
461 int ret = 0;
462
463 ret = gpio_request(GPIO15_ZIPITZ2_WIFI_POWER, "WiFi Power");
464 if (ret)
465 goto err;
466
467 ret = gpio_direction_output(GPIO15_ZIPITZ2_WIFI_POWER, 1);
468 if (ret)
469 goto err2;
470
471 ret = gpio_request(GPIO14_ZIPITZ2_WIFI_RESET, "WiFi Reset");
472 if (ret)
473 goto err2;
474
475 ret = gpio_direction_output(GPIO14_ZIPITZ2_WIFI_RESET, 0);
476 if (ret)
477 goto err3;
478
479 /* Reset the card */
480 mdelay(180);
481 gpio_set_value(GPIO14_ZIPITZ2_WIFI_RESET, 1);
482 mdelay(20);
483
484 spi->bits_per_word = 16;
485 spi->mode = SPI_MODE_2,
486
487 spi_setup(spi);
488
489 return 0;
490
491err3:
492 gpio_free(GPIO14_ZIPITZ2_WIFI_RESET);
493err2:
494 gpio_free(GPIO15_ZIPITZ2_WIFI_POWER);
495err:
496 return ret;
497};
498
499static int z2_lbs_spi_teardown(struct spi_device *spi)
500{
501 gpio_set_value(GPIO14_ZIPITZ2_WIFI_RESET, 0);
502 gpio_set_value(GPIO15_ZIPITZ2_WIFI_POWER, 0);
503 gpio_free(GPIO14_ZIPITZ2_WIFI_RESET);
504 gpio_free(GPIO15_ZIPITZ2_WIFI_POWER);
505 return 0;
506
507};
508
509static struct pxa2xx_spi_chip z2_lbs_chip_info = {
510 .rx_threshold = 8,
511 .tx_threshold = 8,
512 .timeout = 1000,
513 .gpio_cs = GPIO24_ZIPITZ2_WIFI_CS,
514};
515
516static struct libertas_spi_platform_data z2_lbs_pdata = {
517 .use_dummy_writes = 1,
518 .setup = z2_lbs_spi_setup,
519 .teardown = z2_lbs_spi_teardown,
520};
521
522/* LCD */
523static struct pxa2xx_spi_chip lms283_chip_info = {
524 .rx_threshold = 1,
525 .tx_threshold = 1,
526 .timeout = 64,
527 .gpio_cs = GPIO88_ZIPITZ2_LCD_CS,
528};
529
530static const struct lms283gf05_pdata lms283_pdata = {
531 .reset_gpio = GPIO19_ZIPITZ2_LCD_RESET,
532};
533
534static struct spi_board_info spi_board_info[] __initdata = {
535{
536 .modalias = "libertas_spi",
537 .platform_data = &z2_lbs_pdata,
538 .controller_data = &z2_lbs_chip_info,
539 .irq = gpio_to_irq(GPIO36_ZIPITZ2_WIFI_IRQ),
540 .max_speed_hz = 13000000,
541 .bus_num = 1,
542 .chip_select = 0,
543},
544{
545 .modalias = "lms283gf05",
546 .controller_data = &lms283_chip_info,
547 .platform_data = &lms283_pdata,
548 .max_speed_hz = 400000,
549 .bus_num = 2,
550 .chip_select = 0,
551},
552};
553
554static struct pxa2xx_spi_master pxa_ssp1_master_info = {
555 .clock_enable = CKEN_SSP,
556 .num_chipselect = 1,
557 .enable_dma = 1,
558};
559
560static struct pxa2xx_spi_master pxa_ssp2_master_info = {
561 .clock_enable = CKEN_SSP2,
562 .num_chipselect = 1,
563};
564
565static void __init z2_spi_init(void)
566{
567 pxa2xx_set_spi_info(1, &pxa_ssp1_master_info);
568 pxa2xx_set_spi_info(2, &pxa_ssp2_master_info);
569 spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
570}
571#else
572static inline void z2_spi_init(void) {}
573#endif
574
575/******************************************************************************
576 * Machine init
577 ******************************************************************************/
578static void __init z2_init(void)
579{
580 pxa2xx_mfp_config(ARRAY_AND_SIZE(z2_pin_config));
581
582 z2_lcd_init();
583 z2_mmc_init();
584 z2_mkp_init();
585
586 pxa_set_i2c_info(NULL);
587
588 z2_spi_init();
589 z2_nor_init();
590 z2_pwm_init();
591 z2_leds_init();
592 z2_keys_init();
593}
594
595MACHINE_START(ZIPIT2, "Zipit Z2")
596 .phys_io = 0x40000000,
597 .boot_params = 0xa0000100,
598 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
599 .map_io = pxa_map_io,
600 .init_irq = pxa27x_init_irq,
601 .timer = &pxa_timer,
602 .init_machine = z2_init,
603MACHINE_END
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-18 15:33:15 -0500