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MAINTAINERS: New MAINTAINERS entries for Zipit Z2 and Voipac PXA270
[deliverable/linux.git] / arch / arm / mach-pxa / z2.c
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b6377992
MV		 1/*
2 * linux/arch/arm/mach-pxa/z2.c
3 *
4 * Support for the Zipit Z2 Handheld device.
5 *
6 * Author: Ken McGuire
7 * Created: Jan 25, 2009
8 * Based on mainstone.c as modified for the Zipit Z2.
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 as
12 * published by the Free Software Foundation.
13 */
14
15#include <linux/platform_device.h>
16#include <linux/mtd/mtd.h>
17#include <linux/mtd/partitions.h>
18#include <linux/pwm_backlight.h>
19#include <linux/dma-mapping.h>
20#include <linux/spi/spi.h>
21#include <linux/spi/libertas_spi.h>
22#include <linux/spi/lms283gf05.h>
23#include <linux/power_supply.h>
24#include <linux/mtd/physmap.h>
25#include <linux/gpio.h>
26#include <linux/gpio_keys.h>
27#include <linux/delay.h>
28
29#include <asm/mach-types.h>
30#include <asm/mach/arch.h>
31
32#include <mach/pxa27x.h>
33#include <mach/mfp-pxa27x.h>
34#include <mach/z2.h>
35#include <mach/pxafb.h>
36#include <mach/mmc.h>
37#include <mach/pxa27x_keypad.h>
38#include <mach/pxa2xx_spi.h>
39
40#include <plat/i2c.h>
41
42#include "generic.h"
43#include "devices.h"
44
45/******************************************************************************
46 * Pin configuration
47 ******************************************************************************/
48static unsigned long z2_pin_config[] = {
49
50 /* LCD - 16bpp Active TFT */
51 GPIO58_LCD_LDD_0,
52 GPIO59_LCD_LDD_1,
53 GPIO60_LCD_LDD_2,
54 GPIO61_LCD_LDD_3,
55 GPIO62_LCD_LDD_4,
56 GPIO63_LCD_LDD_5,
57 GPIO64_LCD_LDD_6,
58 GPIO65_LCD_LDD_7,
59 GPIO66_LCD_LDD_8,
60 GPIO67_LCD_LDD_9,
61 GPIO68_LCD_LDD_10,
62 GPIO69_LCD_LDD_11,
63 GPIO70_LCD_LDD_12,
64 GPIO71_LCD_LDD_13,
65 GPIO72_LCD_LDD_14,
66 GPIO73_LCD_LDD_15,
67 GPIO74_LCD_FCLK,
68 GPIO75_LCD_LCLK,
69 GPIO76_LCD_PCLK,
70 GPIO77_LCD_BIAS,
71 GPIO19_GPIO, /* LCD reset */
72 GPIO88_GPIO, /* LCD chipselect */
73
74 /* PWM */
75 GPIO115_PWM1_OUT, /* Keypad Backlight */
76 GPIO11_PWM2_OUT, /* LCD Backlight */
77
78 /* MMC */
79 GPIO32_MMC_CLK,
80 GPIO112_MMC_CMD,
81 GPIO92_MMC_DAT_0,
82 GPIO109_MMC_DAT_1,
83 GPIO110_MMC_DAT_2,
84 GPIO111_MMC_DAT_3,
85 GPIO96_GPIO, /* SD detect */
86
87 /* STUART */
88 GPIO46_STUART_RXD,
89 GPIO47_STUART_TXD,
90
91 /* Keypad */
92 GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
93 GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
94 GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
95 GPIO34_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
96 GPIO38_KP_MKIN_4 | WAKEUP_ON_LEVEL_HIGH,
97 GPIO16_KP_MKIN_5 | WAKEUP_ON_LEVEL_HIGH,
98 GPIO17_KP_MKIN_6 | WAKEUP_ON_LEVEL_HIGH,
99 GPIO103_KP_MKOUT_0,
100 GPIO104_KP_MKOUT_1,
101 GPIO105_KP_MKOUT_2,
102 GPIO106_KP_MKOUT_3,
103 GPIO107_KP_MKOUT_4,
104 GPIO108_KP_MKOUT_5,
105 GPIO35_KP_MKOUT_6,
106 GPIO41_KP_MKOUT_7,
107
108 /* I2C */
109 GPIO117_I2C_SCL,
110 GPIO118_I2C_SDA,
111
112 /* SSP1 */
113 GPIO23_SSP1_SCLK, /* SSP1_SCK */
114 GPIO25_SSP1_TXD, /* SSP1_TXD */
115 GPIO26_SSP1_RXD, /* SSP1_RXD */
116
117 /* SSP2 */
118 GPIO22_SSP2_SCLK, /* SSP2_SCK */
119 GPIO13_SSP2_TXD, /* SSP2_TXD */
120 GPIO40_SSP2_RXD, /* SSP2_RXD */
121
122 /* LEDs */
123 GPIO10_GPIO, /* WiFi LED */
124 GPIO83_GPIO, /* Charging LED */
125 GPIO85_GPIO, /* Charged LED */
126
127 /* I2S */
128 GPIO28_I2S_BITCLK_OUT,
129 GPIO29_I2S_SDATA_IN,
130 GPIO30_I2S_SDATA_OUT,
131 GPIO31_I2S_SYNC,
132 GPIO113_I2S_SYSCLK,
133
134 /* MISC */
135 GPIO0_GPIO, /* AC power detect */
136 GPIO1_GPIO, /* Power button */
137 GPIO37_GPIO, /* Headphone detect */
138 GPIO98_GPIO, /* Lid switch */
139 GPIO14_GPIO, /* WiFi Reset */
140 GPIO15_GPIO, /* WiFi Power */
141 GPIO24_GPIO, /* WiFi CS */
142 GPIO36_GPIO, /* WiFi IRQ */
143 GPIO88_GPIO, /* LCD CS */
144};
145
146/******************************************************************************
147 * NOR Flash
148 ******************************************************************************/
149#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
150static struct resource z2_flash_resource = {
151 .start = PXA_CS0_PHYS,
152 .end = PXA_CS0_PHYS + SZ_8M - 1,
153 .flags = IORESOURCE_MEM,
154};
155
156static struct mtd_partition z2_flash_parts[] = {
157 {
158 .name = "U-Boot Bootloader",
159 .offset = 0x0,
160 .size = 0x20000,
161 },
162 {
163 .name = "Linux Kernel",
164 .offset = 0x20000,
165 .size = 0x220000,
166 },
167 {
168 .name = "Filesystem",
169 .offset = 0x240000,
170 .size = 0x5b0000,
171 },
172 {
173 .name = "U-Boot Environment",
174 .offset = 0x7f0000,
175 .size = MTDPART_SIZ_FULL,
176 },
177};
178
179static struct physmap_flash_data z2_flash_data = {
180 .width = 2,
181 .parts = z2_flash_parts,
182 .nr_parts = ARRAY_SIZE(z2_flash_parts),
183};
184
185static struct platform_device z2_flash = {
186 .name = "physmap-flash",
187 .id = -1,
188 .resource = &z2_flash_resource,
189 .num_resources = 1,
190 .dev = {
191 .platform_data = &z2_flash_data,
192 },
193};
194
195static void __init z2_nor_init(void)
196{
197 platform_device_register(&z2_flash);
198}
199#else
200static inline void z2_nor_init(void) {}
201#endif
202
203/******************************************************************************
204 * Backlight
205 ******************************************************************************/
206#if defined(CONFIG_BACKLIGHT_PWM) || defined(CONFIG_BACKLIGHT_PWM_MODULE)
207static struct platform_pwm_backlight_data z2_backlight_data[] = {
208 [0] = {
209 /* Keypad Backlight */
210 .pwm_id = 1,
211 .max_brightness = 1023,
212 .dft_brightness = 512,
213 .pwm_period_ns = 1260320,
214 },
215 [1] = {
216 /* LCD Backlight */
217 .pwm_id = 2,
218 .max_brightness = 1023,
219 .dft_brightness = 512,
220 .pwm_period_ns = 1260320,
221 },
222};
223
224static struct platform_device z2_backlight_devices[2] = {
225 {
226 .name = "pwm-backlight",
227 .id = 0,
228 .dev = {
229 .platform_data = &z2_backlight_data[1],
230 },
231 },
232 {
233 .name = "pwm-backlight",
234 .id = 1,
235 .dev = {
236 .platform_data = &z2_backlight_data[0],
237 },
238 },
239};
240static void __init z2_pwm_init(void)
241{
242 platform_device_register(&z2_backlight_devices[0]);
243 platform_device_register(&z2_backlight_devices[1]);
244}
245#else
246static inline void z2_pwm_init(void) {}
247#endif
248
249/******************************************************************************
250 * Framebuffer
251 ******************************************************************************/
252#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
253static struct pxafb_mode_info z2_lcd_modes[] = {
254{
255 .pixclock = 192000,
256 .xres = 240,
257 .yres = 320,
258 .bpp = 16,
259
260 .left_margin = 4,
261 .right_margin = 8,
262 .upper_margin = 4,
263 .lower_margin = 8,
264
265 .hsync_len = 4,
266 .vsync_len = 4,
267},
268};
269
270static struct pxafb_mach_info z2_lcd_screen = {
271 .modes = z2_lcd_modes,
272 .num_modes = ARRAY_SIZE(z2_lcd_modes),
273 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_BIAS_ACTIVE_LOW |
274 LCD_ALTERNATE_MAPPING,
275};
276
277static void __init z2_lcd_init(void)
278{
279 set_pxa_fb_info(&z2_lcd_screen);
280}
281#else
282static inline void z2_lcd_init(void) {}
283#endif
284
285/******************************************************************************
286 * SD/MMC card controller
287 ******************************************************************************/
288#if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
289static struct pxamci_platform_data z2_mci_platform_data = {
290 .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
291 .gpio_card_detect = GPIO96_ZIPITZ2_SD_DETECT,
292 .gpio_power = -1,
293 .gpio_card_ro = -1,
294 .detect_delay = 20,
295};
296
297static void __init z2_mmc_init(void)
298{
299 pxa_set_mci_info(&z2_mci_platform_data);
300}
301#else
302static inline void z2_mmc_init(void) {}
303#endif
304
305/******************************************************************************
306 * LEDs
307 ******************************************************************************/
308#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
309struct gpio_led z2_gpio_leds[] = {
310{
311 .name = "z2:green:wifi",
312 .default_trigger = "none",
313 .gpio = GPIO10_ZIPITZ2_LED_WIFI,
314 .active_low = 1,
315}, {
316 .name = "z2:green:charged",
317 .default_trigger = "none",
318 .gpio = GPIO85_ZIPITZ2_LED_CHARGED,
319 .active_low = 1,
320}, {
321 .name = "z2:amber:charging",
322 .default_trigger = "none",
323 .gpio = GPIO83_ZIPITZ2_LED_CHARGING,
324 .active_low = 1,
325},
326};
327
328static struct gpio_led_platform_data z2_gpio_led_info = {
329 .leds = z2_gpio_leds,
330 .num_leds = ARRAY_SIZE(z2_gpio_leds),
331};
332
333static struct platform_device z2_leds = {
334 .name = "leds-gpio",
335 .id = -1,
336 .dev = {
337 .platform_data = &z2_gpio_led_info,
338 }
339};
340
341static void __init z2_leds_init(void)
342{
343 platform_device_register(&z2_leds);
344}
345#else
346static inline void z2_leds_init(void) {}
347#endif
348
349/******************************************************************************
350 * GPIO keyboard
351 ******************************************************************************/
352#if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
353static unsigned int z2_matrix_keys[] = {
354 KEY(0, 0, KEY_OPTION),
355 KEY(1, 0, KEY_UP),
356 KEY(2, 0, KEY_DOWN),
357 KEY(3, 0, KEY_LEFT),
358 KEY(4, 0, KEY_RIGHT),
359 KEY(5, 0, KEY_END),
360 KEY(6, 0, KEY_KPPLUS),
361
362 KEY(0, 1, KEY_HOME),
363 KEY(1, 1, KEY_Q),
364 KEY(2, 1, KEY_I),
365 KEY(3, 1, KEY_G),
366 KEY(4, 1, KEY_X),
367 KEY(5, 1, KEY_ENTER),
368 KEY(6, 1, KEY_KPMINUS),
369
370 KEY(0, 2, KEY_PAGEUP),
371 KEY(1, 2, KEY_W),
372 KEY(2, 2, KEY_O),
373 KEY(3, 2, KEY_H),
374 KEY(4, 2, KEY_C),
375 KEY(5, 2, KEY_LEFTALT),
376
377 KEY(0, 3, KEY_PAGEDOWN),
378 KEY(1, 3, KEY_E),
379 KEY(2, 3, KEY_P),
380 KEY(3, 3, KEY_J),
381 KEY(4, 3, KEY_V),
382 KEY(5, 3, KEY_LEFTSHIFT),
383
384 KEY(0, 4, KEY_ESC),
385 KEY(1, 4, KEY_R),
386 KEY(2, 4, KEY_A),
387 KEY(3, 4, KEY_K),
388 KEY(4, 4, KEY_B),
389 KEY(5, 4, KEY_LEFTCTRL),
390
391 KEY(0, 5, KEY_TAB),
392 KEY(1, 5, KEY_T),
393 KEY(2, 5, KEY_S),
394 KEY(3, 5, KEY_L),
395 KEY(4, 5, KEY_N),
396 KEY(5, 5, KEY_SPACE),
397
398 KEY(0, 6, KEY_STOPCD),
399 KEY(1, 6, KEY_Y),
400 KEY(2, 6, KEY_D),
401 KEY(3, 6, KEY_BACKSPACE),
402 KEY(4, 6, KEY_M),
403 KEY(5, 6, KEY_COMMA),
404
405 KEY(0, 7, KEY_PLAYCD),
406 KEY(1, 7, KEY_U),
407 KEY(2, 7, KEY_F),
408 KEY(3, 7, KEY_Z),
409 KEY(4, 7, KEY_SEMICOLON),
410 KEY(5, 7, KEY_DOT),
411};
412
413static struct pxa27x_keypad_platform_data z2_keypad_platform_data = {
414 .matrix_key_rows = 7,
415 .matrix_key_cols = 8,
416 .matrix_key_map = z2_matrix_keys,
417 .matrix_key_map_size = ARRAY_SIZE(z2_matrix_keys),
418
419 .debounce_interval = 30,
420};
421
422static void __init z2_mkp_init(void)
423{
424 pxa_set_keypad_info(&z2_keypad_platform_data);
425}
426#else
427static inline void z2_mkp_init(void) {}
428#endif
429
430/******************************************************************************
431 * GPIO keys
432 ******************************************************************************/
433#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
434static struct gpio_keys_button z2_pxa_buttons[] = {
435 {KEY_POWER, GPIO1_ZIPITZ2_POWER_BUTTON, 0, "Power Button" },
436 {KEY_CLOSE, GPIO98_ZIPITZ2_LID_BUTTON, 0, "Lid Button" },
437};
438
439static struct gpio_keys_platform_data z2_pxa_keys_data = {
440 .buttons = z2_pxa_buttons,
441 .nbuttons = ARRAY_SIZE(z2_pxa_buttons),
442};
443
444static struct platform_device z2_pxa_keys = {
445 .name = "gpio-keys",
446 .id = -1,
447 .dev = {
448 .platform_data = &z2_pxa_keys_data,
449 },
450};
451
452static void __init z2_keys_init(void)
453{
454 platform_device_register(&z2_pxa_keys);
455}
456#else
457static inline void z2_keys_init(void) {}
458#endif
459
460/******************************************************************************
461 * SSP Devices - WiFi and LCD control
462 ******************************************************************************/
463#if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
464/* WiFi */
465static int z2_lbs_spi_setup(struct spi_device *spi)
466{
467 int ret = 0;
468
469 ret = gpio_request(GPIO15_ZIPITZ2_WIFI_POWER, "WiFi Power");
470 if (ret)
471 goto err;
472
473 ret = gpio_direction_output(GPIO15_ZIPITZ2_WIFI_POWER, 1);
474 if (ret)
475 goto err2;
476
477 ret = gpio_request(GPIO14_ZIPITZ2_WIFI_RESET, "WiFi Reset");
478 if (ret)
479 goto err2;
480
481 ret = gpio_direction_output(GPIO14_ZIPITZ2_WIFI_RESET, 0);
482 if (ret)
483 goto err3;
484
485 /* Reset the card */
486 mdelay(180);
487 gpio_set_value(GPIO14_ZIPITZ2_WIFI_RESET, 1);
488 mdelay(20);
489
490 spi->bits_per_word = 16;
491 spi->mode = SPI_MODE_2,
492
493 spi_setup(spi);
494
495 return 0;
496
497err3:
498 gpio_free(GPIO14_ZIPITZ2_WIFI_RESET);
499err2:
500 gpio_free(GPIO15_ZIPITZ2_WIFI_POWER);
501err:
502 return ret;
503};
504
505static int z2_lbs_spi_teardown(struct spi_device *spi)
506{
507 gpio_set_value(GPIO14_ZIPITZ2_WIFI_RESET, 0);
508 gpio_set_value(GPIO15_ZIPITZ2_WIFI_POWER, 0);
509 gpio_free(GPIO14_ZIPITZ2_WIFI_RESET);
510 gpio_free(GPIO15_ZIPITZ2_WIFI_POWER);
511 return 0;
512
513};
514
515static struct pxa2xx_spi_chip z2_lbs_chip_info = {
516 .rx_threshold = 8,
517 .tx_threshold = 8,
518 .timeout = 1000,
519 .gpio_cs = GPIO24_ZIPITZ2_WIFI_CS,
520};
521
522static struct libertas_spi_platform_data z2_lbs_pdata = {
523 .use_dummy_writes = 1,
524 .setup = z2_lbs_spi_setup,
525 .teardown = z2_lbs_spi_teardown,
526};
527
528/* LCD */
529static struct pxa2xx_spi_chip lms283_chip_info = {
530 .rx_threshold = 1,
531 .tx_threshold = 1,
532 .timeout = 64,
533 .gpio_cs = GPIO88_ZIPITZ2_LCD_CS,
534};
535
536static const struct lms283gf05_pdata lms283_pdata = {
537 .reset_gpio = GPIO19_ZIPITZ2_LCD_RESET,
538};
539
540static struct spi_board_info spi_board_info[] __initdata = {
541{
542 .modalias = "libertas_spi",
543 .platform_data = &z2_lbs_pdata,
544 .controller_data = &z2_lbs_chip_info,
545 .irq = gpio_to_irq(GPIO36_ZIPITZ2_WIFI_IRQ),
546 .max_speed_hz = 13000000,
547 .bus_num = 1,
548 .chip_select = 0,
549},
550{
551 .modalias = "lms283gf05",
552 .controller_data = &lms283_chip_info,
553 .platform_data = &lms283_pdata,
554 .max_speed_hz = 400000,
555 .bus_num = 2,
556 .chip_select = 0,
557},
558};
559
560static struct pxa2xx_spi_master pxa_ssp1_master_info = {
561 .clock_enable = CKEN_SSP,
562 .num_chipselect = 1,
563 .enable_dma = 1,
564};
565
566static struct pxa2xx_spi_master pxa_ssp2_master_info = {
567 .clock_enable = CKEN_SSP2,
568 .num_chipselect = 1,
569};
570
571static void __init z2_spi_init(void)
572{
573 pxa2xx_set_spi_info(1, &pxa_ssp1_master_info);
574 pxa2xx_set_spi_info(2, &pxa_ssp2_master_info);
575 spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
576}
577#else
578static inline void z2_spi_init(void) {}
579#endif
580
581/******************************************************************************
582 * Machine init
583 ******************************************************************************/
584static void __init z2_init(void)
585{
586 pxa2xx_mfp_config(ARRAY_AND_SIZE(z2_pin_config));
587
588 z2_lcd_init();
589 z2_mmc_init();
590 z2_mkp_init();
591
592 pxa_set_i2c_info(NULL);
593
594 z2_spi_init();
595 z2_nor_init();
596 z2_pwm_init();
597 z2_leds_init();
598 z2_keys_init();
599}
600
601MACHINE_START(ZIPIT2, "Zipit Z2")
602 .phys_io = 0x40000000,
603 .boot_params = 0xa0000100,
604 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
605 .map_io = pxa_map_io,
606 .init_irq = pxa27x_init_irq,
607 .timer = &pxa_timer,
608 .init_machine = z2_init,
609MACHINE_END
Linux kernel - Deliverables
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