2 * linux/arch/arm/mach-pxa/z2.c
4 * Support for the Zipit Z2 Handheld device.
6 * Copyright (C) 2009-2010 Marek Vasut <marek.vasut@gmail.com>
8 * Based on research and code by: Ken McGuire
9 * Based on mainstone.c as modified for the Zipit Z2.
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.
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>
30 #include <asm/mach-types.h>
31 #include <asm/mach/arch.h>
33 #include <mach/pxa27x.h>
34 #include <mach/mfp-pxa27x.h>
36 #include <mach/pxafb.h>
38 #include <mach/pxa27x_keypad.h>
39 #include <mach/pxa2xx_spi.h>
46 /******************************************************************************
48 ******************************************************************************/
49 static unsigned long z2_pin_config[] = {
51 /* LCD - 16bpp Active TFT */
72 GPIO19_GPIO, /* LCD reset */
73 GPIO88_GPIO, /* LCD chipselect */
76 GPIO115_PWM1_OUT, /* Keypad Backlight */
77 GPIO11_PWM2_OUT, /* LCD Backlight */
86 GPIO96_GPIO, /* SD detect */
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,
114 GPIO23_SSP1_SCLK, /* SSP1_SCK */
115 GPIO25_SSP1_TXD, /* SSP1_TXD */
116 GPIO26_SSP1_RXD, /* SSP1_RXD */
119 GPIO22_SSP2_SCLK, /* SSP2_SCK */
120 GPIO13_SSP2_TXD, /* SSP2_TXD */
121 GPIO40_SSP2_RXD, /* SSP2_RXD */
124 GPIO10_GPIO, /* WiFi LED */
125 GPIO83_GPIO, /* Charging LED */
126 GPIO85_GPIO, /* Charged LED */
129 GPIO28_I2S_BITCLK_OUT,
131 GPIO30_I2S_SDATA_OUT,
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 */
147 /******************************************************************************
149 ******************************************************************************/
150 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
151 static struct resource z2_flash_resource = {
152 .start = PXA_CS0_PHYS,
153 .end = PXA_CS0_PHYS + SZ_8M - 1,
154 .flags = IORESOURCE_MEM,
157 static struct mtd_partition z2_flash_parts[] = {
159 .name = "U-Boot Bootloader",
163 .name = "U-Boot Environment",
169 .size = MTDPART_SIZ_FULL,
173 static struct physmap_flash_data z2_flash_data = {
175 .parts = z2_flash_parts,
176 .nr_parts = ARRAY_SIZE(z2_flash_parts),
179 static struct platform_device z2_flash = {
180 .name = "physmap-flash",
182 .resource = &z2_flash_resource,
185 .platform_data = &z2_flash_data,
189 static void __init z2_nor_init(void)
191 platform_device_register(&z2_flash);
194 static inline void z2_nor_init(void) {}
197 /******************************************************************************
199 ******************************************************************************/
200 #if defined(CONFIG_BACKLIGHT_PWM) || defined(CONFIG_BACKLIGHT_PWM_MODULE)
201 static struct platform_pwm_backlight_data z2_backlight_data[] = {
203 /* Keypad Backlight */
205 .max_brightness = 1023,
206 .dft_brightness = 512,
207 .pwm_period_ns = 1260320,
212 .max_brightness = 1023,
213 .dft_brightness = 512,
214 .pwm_period_ns = 1260320,
218 static struct platform_device z2_backlight_devices[2] = {
220 .name = "pwm-backlight",
223 .platform_data = &z2_backlight_data[1],
227 .name = "pwm-backlight",
230 .platform_data = &z2_backlight_data[0],
234 static void __init z2_pwm_init(void)
236 platform_device_register(&z2_backlight_devices[0]);
237 platform_device_register(&z2_backlight_devices[1]);
240 static inline void z2_pwm_init(void) {}
243 /******************************************************************************
245 ******************************************************************************/
246 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
247 static struct pxafb_mode_info z2_lcd_modes[] = {
264 static 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,
271 static void __init z2_lcd_init(void)
273 set_pxa_fb_info(&z2_lcd_screen);
276 static inline void z2_lcd_init(void) {}
279 /******************************************************************************
280 * SD/MMC card controller
281 ******************************************************************************/
282 #if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
283 static 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,
288 .detect_delay_ms = 200,
291 static void __init z2_mmc_init(void)
293 pxa_set_mci_info(&z2_mci_platform_data);
296 static inline void z2_mmc_init(void) {}
299 /******************************************************************************
301 ******************************************************************************/
302 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
303 struct gpio_led z2_gpio_leds[] = {
305 .name = "z2:green:wifi",
306 .default_trigger = "none",
307 .gpio = GPIO10_ZIPITZ2_LED_WIFI,
310 .name = "z2:green:charged",
311 .default_trigger = "none",
312 .gpio = GPIO85_ZIPITZ2_LED_CHARGED,
315 .name = "z2:amber:charging",
316 .default_trigger = "none",
317 .gpio = GPIO83_ZIPITZ2_LED_CHARGING,
322 static struct gpio_led_platform_data z2_gpio_led_info = {
323 .leds = z2_gpio_leds,
324 .num_leds = ARRAY_SIZE(z2_gpio_leds),
327 static struct platform_device z2_leds = {
331 .platform_data = &z2_gpio_led_info,
335 static void __init z2_leds_init(void)
337 platform_device_register(&z2_leds);
340 static inline void z2_leds_init(void) {}
343 /******************************************************************************
345 ******************************************************************************/
346 #if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
347 static unsigned int z2_matrix_keys[] = {
348 KEY(0, 0, KEY_OPTION),
352 KEY(4, 0, KEY_RIGHT),
354 KEY(6, 0, KEY_KPPLUS),
361 KEY(5, 1, KEY_ENTER),
362 KEY(6, 1, KEY_KPMINUS),
364 KEY(0, 2, KEY_PAGEUP),
369 KEY(5, 2, KEY_LEFTALT),
371 KEY(0, 3, KEY_PAGEDOWN),
376 KEY(5, 3, KEY_LEFTSHIFT),
383 KEY(5, 4, KEY_LEFTCTRL),
390 KEY(5, 5, KEY_SPACE),
392 KEY(0, 6, KEY_STOPCD),
395 KEY(3, 6, KEY_BACKSPACE),
397 KEY(5, 6, KEY_COMMA),
399 KEY(0, 7, KEY_PLAYCD),
403 KEY(4, 7, KEY_SEMICOLON),
407 static 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),
413 .debounce_interval = 30,
416 static void __init z2_mkp_init(void)
418 pxa_set_keypad_info(&z2_keypad_platform_data);
421 static inline void z2_mkp_init(void) {}
424 /******************************************************************************
426 ******************************************************************************/
427 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
428 static 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" },
433 static struct gpio_keys_platform_data z2_pxa_keys_data = {
434 .buttons = z2_pxa_buttons,
435 .nbuttons = ARRAY_SIZE(z2_pxa_buttons),
438 static struct platform_device z2_pxa_keys = {
442 .platform_data = &z2_pxa_keys_data,
446 static void __init z2_keys_init(void)
448 platform_device_register(&z2_pxa_keys);
451 static inline void z2_keys_init(void) {}
454 /******************************************************************************
455 * SSP Devices - WiFi and LCD control
456 ******************************************************************************/
457 #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
459 static int z2_lbs_spi_setup(struct spi_device *spi)
463 ret = gpio_request(GPIO15_ZIPITZ2_WIFI_POWER, "WiFi Power");
467 ret = gpio_direction_output(GPIO15_ZIPITZ2_WIFI_POWER, 1);
471 ret = gpio_request(GPIO14_ZIPITZ2_WIFI_RESET, "WiFi Reset");
475 ret = gpio_direction_output(GPIO14_ZIPITZ2_WIFI_RESET, 0);
481 gpio_set_value(GPIO14_ZIPITZ2_WIFI_RESET, 1);
484 spi->bits_per_word = 16;
485 spi->mode = SPI_MODE_2,
492 gpio_free(GPIO14_ZIPITZ2_WIFI_RESET);
494 gpio_free(GPIO15_ZIPITZ2_WIFI_POWER);
499 static int z2_lbs_spi_teardown(struct spi_device *spi)
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);
509 static struct pxa2xx_spi_chip z2_lbs_chip_info = {
513 .gpio_cs = GPIO24_ZIPITZ2_WIFI_CS,
516 static 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,
523 static struct pxa2xx_spi_chip lms283_chip_info = {
527 .gpio_cs = GPIO88_ZIPITZ2_LCD_CS,
530 static const struct lms283gf05_pdata lms283_pdata = {
531 .reset_gpio = GPIO19_ZIPITZ2_LCD_RESET,
534 static struct spi_board_info spi_board_info[] __initdata = {
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,
545 .modalias = "lms283gf05",
546 .controller_data = &lms283_chip_info,
547 .platform_data = &lms283_pdata,
548 .max_speed_hz = 400000,
554 static struct pxa2xx_spi_master pxa_ssp1_master_info = {
555 .clock_enable = CKEN_SSP,
560 static struct pxa2xx_spi_master pxa_ssp2_master_info = {
561 .clock_enable = CKEN_SSP2,
565 static void __init z2_spi_init(void)
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));
572 static inline void z2_spi_init(void) {}
575 /******************************************************************************
577 ******************************************************************************/
578 static void __init z2_init(void)
580 pxa2xx_mfp_config(ARRAY_AND_SIZE(z2_pin_config));
586 pxa_set_i2c_info(NULL);
595 MACHINE_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,
602 .init_machine = z2_init,