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/z2_battery.h>
21 #include <linux/dma-mapping.h>
22 #include <linux/spi/spi.h>
23 #include <linux/spi/pxa2xx_spi.h>
24 #include <linux/spi/libertas_spi.h>
25 #include <linux/spi/lms283gf05.h>
26 #include <linux/power_supply.h>
27 #include <linux/mtd/physmap.h>
28 #include <linux/gpio.h>
29 #include <linux/gpio_keys.h>
30 #include <linux/delay.h>
31 #include <linux/regulator/machine.h>
32 #include <linux/i2c/pxa-i2c.h>
34 #include <asm/mach-types.h>
35 #include <asm/mach/arch.h>
37 #include <mach/pxa27x.h>
38 #include <mach/mfp-pxa27x.h>
40 #include <linux/platform_data/video-pxafb.h>
41 #include <linux/platform_data/mmc-pxamci.h>
42 #include <linux/platform_data/keypad-pxa27x.h>
48 /******************************************************************************
50 ******************************************************************************/
51 static unsigned long z2_pin_config[] = {
53 /* LCD - 16bpp Active TFT */
74 GPIO19_GPIO, /* LCD reset */
75 GPIO88_GPIO, /* LCD chipselect */
78 GPIO115_PWM1_OUT, /* Keypad Backlight */
79 GPIO11_PWM2_OUT, /* LCD Backlight */
88 GPIO96_GPIO, /* SD detect */
116 GPIO23_SSP1_SCLK, /* SSP1_SCK */
117 GPIO25_SSP1_TXD, /* SSP1_TXD */
118 GPIO26_SSP1_RXD, /* SSP1_RXD */
121 GPIO22_SSP2_SCLK, /* SSP2_SCK */
122 GPIO13_SSP2_TXD, /* SSP2_TXD */
123 GPIO40_SSP2_RXD, /* SSP2_RXD */
126 GPIO10_GPIO, /* WiFi LED */
127 GPIO83_GPIO, /* Charging LED */
128 GPIO85_GPIO, /* Charged LED */
131 GPIO28_I2S_BITCLK_OUT,
133 GPIO30_I2S_SDATA_OUT,
138 GPIO0_GPIO, /* AC power detect */
139 GPIO1_GPIO, /* Power button */
140 GPIO37_GPIO, /* Headphone detect */
141 GPIO98_GPIO, /* Lid switch */
142 GPIO14_GPIO, /* WiFi Power */
143 GPIO24_GPIO, /* WiFi CS */
144 GPIO36_GPIO, /* WiFi IRQ */
145 GPIO88_GPIO, /* LCD CS */
148 /******************************************************************************
150 ******************************************************************************/
151 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
152 static struct resource z2_flash_resource = {
153 .start = PXA_CS0_PHYS,
154 .end = PXA_CS0_PHYS + SZ_8M - 1,
155 .flags = IORESOURCE_MEM,
158 static struct mtd_partition z2_flash_parts[] = {
160 .name = "U-Boot Bootloader",
164 .name = "U-Boot Environment",
170 .size = MTDPART_SIZ_FULL,
174 static struct physmap_flash_data z2_flash_data = {
176 .parts = z2_flash_parts,
177 .nr_parts = ARRAY_SIZE(z2_flash_parts),
180 static struct platform_device z2_flash = {
181 .name = "physmap-flash",
183 .resource = &z2_flash_resource,
186 .platform_data = &z2_flash_data,
190 static void __init z2_nor_init(void)
192 platform_device_register(&z2_flash);
195 static inline void z2_nor_init(void) {}
198 /******************************************************************************
200 ******************************************************************************/
201 #if defined(CONFIG_BACKLIGHT_PWM) || defined(CONFIG_BACKLIGHT_PWM_MODULE)
202 static struct platform_pwm_backlight_data z2_backlight_data[] = {
204 /* Keypad Backlight */
206 .max_brightness = 1023,
208 .pwm_period_ns = 1260320,
213 .max_brightness = 1023,
214 .dft_brightness = 512,
215 .pwm_period_ns = 1260320,
219 static struct platform_device z2_backlight_devices[2] = {
221 .name = "pwm-backlight",
224 .platform_data = &z2_backlight_data[1],
228 .name = "pwm-backlight",
231 .platform_data = &z2_backlight_data[0],
235 static void __init z2_pwm_init(void)
237 platform_device_register(&z2_backlight_devices[0]);
238 platform_device_register(&z2_backlight_devices[1]);
241 static inline void z2_pwm_init(void) {}
244 /******************************************************************************
246 ******************************************************************************/
247 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
248 static struct pxafb_mode_info z2_lcd_modes[] = {
265 static struct pxafb_mach_info z2_lcd_screen = {
266 .modes = z2_lcd_modes,
267 .num_modes = ARRAY_SIZE(z2_lcd_modes),
268 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_BIAS_ACTIVE_LOW |
269 LCD_ALTERNATE_MAPPING,
272 static void __init z2_lcd_init(void)
274 pxa_set_fb_info(NULL, &z2_lcd_screen);
277 static inline void z2_lcd_init(void) {}
280 /******************************************************************************
281 * SD/MMC card controller
282 ******************************************************************************/
283 #if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
284 static struct pxamci_platform_data z2_mci_platform_data = {
285 .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
286 .gpio_card_detect = GPIO96_ZIPITZ2_SD_DETECT,
289 .detect_delay_ms = 200,
292 static void __init z2_mmc_init(void)
294 pxa_set_mci_info(&z2_mci_platform_data);
297 static inline void z2_mmc_init(void) {}
300 /******************************************************************************
302 ******************************************************************************/
303 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
304 struct gpio_led z2_gpio_leds[] = {
306 .name = "z2:green:wifi",
307 .default_trigger = "none",
308 .gpio = GPIO10_ZIPITZ2_LED_WIFI,
311 .name = "z2:green:charged",
312 .default_trigger = "mmc0",
313 .gpio = GPIO85_ZIPITZ2_LED_CHARGED,
316 .name = "z2:amber:charging",
317 .default_trigger = "Z2-charging-or-full",
318 .gpio = GPIO83_ZIPITZ2_LED_CHARGING,
323 static struct gpio_led_platform_data z2_gpio_led_info = {
324 .leds = z2_gpio_leds,
325 .num_leds = ARRAY_SIZE(z2_gpio_leds),
328 static struct platform_device z2_leds = {
332 .platform_data = &z2_gpio_led_info,
336 static void __init z2_leds_init(void)
338 platform_device_register(&z2_leds);
341 static inline void z2_leds_init(void) {}
344 /******************************************************************************
346 ******************************************************************************/
347 #if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
348 static const unsigned int z2_matrix_keys[] = {
349 KEY(0, 0, KEY_OPTION),
353 KEY(4, 0, KEY_RIGHT),
355 KEY(6, 0, KEY_KPPLUS),
362 KEY(5, 1, KEY_ENTER),
363 KEY(6, 1, KEY_KPMINUS),
365 KEY(0, 2, KEY_PAGEUP),
370 KEY(5, 2, KEY_LEFTALT),
372 KEY(0, 3, KEY_PAGEDOWN),
377 KEY(5, 3, KEY_LEFTSHIFT),
384 KEY(5, 4, KEY_LEFTCTRL),
391 KEY(5, 5, KEY_SPACE),
393 KEY(0, 6, KEY_STOPCD),
396 KEY(3, 6, KEY_BACKSPACE),
398 KEY(5, 6, KEY_COMMA),
400 KEY(0, 7, KEY_PLAYCD),
404 KEY(4, 7, KEY_SEMICOLON),
408 static struct matrix_keymap_data z2_matrix_keymap_data = {
409 .keymap = z2_matrix_keys,
410 .keymap_size = ARRAY_SIZE(z2_matrix_keys),
413 static struct pxa27x_keypad_platform_data z2_keypad_platform_data = {
414 .matrix_key_rows = 7,
415 .matrix_key_cols = 8,
416 .matrix_keymap_data = &z2_matrix_keymap_data,
418 .debounce_interval = 30,
421 static void __init z2_mkp_init(void)
423 pxa_set_keypad_info(&z2_keypad_platform_data);
426 static inline void z2_mkp_init(void) {}
429 /******************************************************************************
431 ******************************************************************************/
432 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
433 static struct gpio_keys_button z2_pxa_buttons[] = {
436 .gpio = GPIO1_ZIPITZ2_POWER_BUTTON,
438 .desc = "Power Button",
444 .gpio = GPIO98_ZIPITZ2_LID_BUTTON,
446 .desc = "Lid Switch",
452 static struct gpio_keys_platform_data z2_pxa_keys_data = {
453 .buttons = z2_pxa_buttons,
454 .nbuttons = ARRAY_SIZE(z2_pxa_buttons),
457 static struct platform_device z2_pxa_keys = {
461 .platform_data = &z2_pxa_keys_data,
465 static void __init z2_keys_init(void)
467 platform_device_register(&z2_pxa_keys);
470 static inline void z2_keys_init(void) {}
473 /******************************************************************************
475 ******************************************************************************/
476 #if defined(CONFIG_I2C_PXA) || defined(CONFIG_I2C_PXA_MODULE)
477 static struct z2_battery_info batt_chip_info = {
479 .batt_I2C_addr = 0x55,
481 .charge_gpio = GPIO0_ZIPITZ2_AC_DETECT,
482 .min_voltage = 3475000,
483 .max_voltage = 4190000,
485 .batt_mult = 1000000,
486 .batt_tech = POWER_SUPPLY_TECHNOLOGY_LION,
490 static struct i2c_board_info __initdata z2_i2c_board_info[] = {
492 I2C_BOARD_INFO("aer915", 0x55),
493 .platform_data = &batt_chip_info,
495 I2C_BOARD_INFO("wm8750", 0x1b),
500 static void __init z2_i2c_init(void)
502 pxa_set_i2c_info(NULL);
503 i2c_register_board_info(0, ARRAY_AND_SIZE(z2_i2c_board_info));
506 static inline void z2_i2c_init(void) {}
509 /******************************************************************************
510 * SSP Devices - WiFi and LCD control
511 ******************************************************************************/
512 #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
514 static int z2_lbs_spi_setup(struct spi_device *spi)
518 ret = gpio_request(GPIO14_ZIPITZ2_WIFI_POWER, "WiFi Power");
522 ret = gpio_direction_output(GPIO14_ZIPITZ2_WIFI_POWER, 1);
526 /* Wait until card is powered on */
529 spi->bits_per_word = 16;
530 spi->mode = SPI_MODE_2,
537 gpio_free(GPIO14_ZIPITZ2_WIFI_POWER);
542 static int z2_lbs_spi_teardown(struct spi_device *spi)
544 gpio_set_value(GPIO14_ZIPITZ2_WIFI_POWER, 0);
545 gpio_free(GPIO14_ZIPITZ2_WIFI_POWER);
550 static struct pxa2xx_spi_chip z2_lbs_chip_info = {
554 .gpio_cs = GPIO24_ZIPITZ2_WIFI_CS,
557 static struct libertas_spi_platform_data z2_lbs_pdata = {
558 .use_dummy_writes = 1,
559 .setup = z2_lbs_spi_setup,
560 .teardown = z2_lbs_spi_teardown,
564 static struct pxa2xx_spi_chip lms283_chip_info = {
568 .gpio_cs = GPIO88_ZIPITZ2_LCD_CS,
571 static const struct lms283gf05_pdata lms283_pdata = {
572 .reset_gpio = GPIO19_ZIPITZ2_LCD_RESET,
575 static struct spi_board_info spi_board_info[] __initdata = {
577 .modalias = "libertas_spi",
578 .platform_data = &z2_lbs_pdata,
579 .controller_data = &z2_lbs_chip_info,
580 .irq = PXA_GPIO_TO_IRQ(GPIO36_ZIPITZ2_WIFI_IRQ),
581 .max_speed_hz = 13000000,
586 .modalias = "lms283gf05",
587 .controller_data = &lms283_chip_info,
588 .platform_data = &lms283_pdata,
589 .max_speed_hz = 400000,
595 static struct pxa2xx_spi_master pxa_ssp1_master_info = {
596 .clock_enable = CKEN_SSP,
601 static struct pxa2xx_spi_master pxa_ssp2_master_info = {
602 .clock_enable = CKEN_SSP2,
606 static void __init z2_spi_init(void)
608 pxa2xx_set_spi_info(1, &pxa_ssp1_master_info);
609 pxa2xx_set_spi_info(2, &pxa_ssp2_master_info);
610 spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
613 static inline void z2_spi_init(void) {}
616 /******************************************************************************
617 * Core power regulator
618 ******************************************************************************/
619 #if defined(CONFIG_REGULATOR_TPS65023) || \
620 defined(CONFIG_REGULATOR_TPS65023_MODULE)
621 static struct regulator_consumer_supply z2_tps65021_consumers[] = {
622 REGULATOR_SUPPLY("vcc_core", NULL),
625 static struct regulator_init_data z2_tps65021_info[] = {
628 .name = "vcc_core range",
632 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
634 .consumer_supplies = z2_tps65021_consumers,
635 .num_consumer_supplies = ARRAY_SIZE(z2_tps65021_consumers),
667 static struct i2c_board_info __initdata z2_pi2c_board_info[] = {
669 I2C_BOARD_INFO("tps65021", 0x48),
670 .platform_data = &z2_tps65021_info,
674 static void __init z2_pmic_init(void)
676 pxa27x_set_i2c_power_info(NULL);
677 i2c_register_board_info(1, ARRAY_AND_SIZE(z2_pi2c_board_info));
680 static inline void z2_pmic_init(void) {}
684 static void z2_power_off(void)
686 /* We're using deep sleep as poweroff, so clear PSPR to ensure that
687 * bootloader will jump to its entry point in resume handler
691 pxa27x_set_pwrmode(PWRMODE_DEEPSLEEP);
692 pxa27x_cpu_pm_enter(PM_SUSPEND_MEM);
695 #define z2_power_off NULL
698 /******************************************************************************
700 ******************************************************************************/
701 static void __init z2_init(void)
703 pxa2xx_mfp_config(ARRAY_AND_SIZE(z2_pin_config));
705 pxa_set_ffuart_info(NULL);
706 pxa_set_btuart_info(NULL);
707 pxa_set_stuart_info(NULL);
720 pm_power_off = z2_power_off;
723 MACHINE_START(ZIPIT2, "Zipit Z2")
724 .atag_offset = 0x100,
725 .map_io = pxa27x_map_io,
726 .nr_irqs = PXA_NR_IRQS,
727 .init_irq = pxa27x_init_irq,
728 .handle_irq = pxa27x_handle_irq,
729 .init_time = pxa_timer_init,
730 .init_machine = z2_init,
731 .restart = pxa_restart,