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.h>
20 #include <linux/pwm_backlight.h>
21 #include <linux/z2_battery.h>
22 #include <linux/dma-mapping.h>
23 #include <linux/spi/spi.h>
24 #include <linux/spi/pxa2xx_spi.h>
25 #include <linux/spi/libertas_spi.h>
26 #include <linux/spi/lms283gf05.h>
27 #include <linux/power_supply.h>
28 #include <linux/mtd/physmap.h>
29 #include <linux/gpio.h>
30 #include <linux/gpio/machine.h>
31 #include <linux/gpio_keys.h>
32 #include <linux/delay.h>
33 #include <linux/regulator/machine.h>
34 #include <linux/platform_data/i2c-pxa.h>
36 #include <asm/mach-types.h>
37 #include <asm/mach/arch.h>
40 #include "mfp-pxa27x.h"
42 #include <linux/platform_data/video-pxafb.h>
43 #include <linux/platform_data/mmc-pxamci.h>
44 #include <linux/platform_data/keypad-pxa27x.h>
50 /******************************************************************************
52 ******************************************************************************/
53 static unsigned long z2_pin_config[] = {
55 /* LCD - 16bpp Active TFT */
76 GPIO19_GPIO, /* LCD reset */
77 GPIO88_GPIO, /* LCD chipselect */
80 GPIO115_PWM1_OUT, /* Keypad Backlight */
81 GPIO11_PWM2_OUT, /* LCD Backlight */
90 GPIO96_GPIO, /* SD detect */
118 GPIO23_SSP1_SCLK, /* SSP1_SCK */
119 GPIO25_SSP1_TXD, /* SSP1_TXD */
120 GPIO26_SSP1_RXD, /* SSP1_RXD */
123 GPIO22_SSP2_SCLK, /* SSP2_SCK */
124 GPIO13_SSP2_TXD, /* SSP2_TXD */
125 GPIO40_SSP2_RXD, /* SSP2_RXD */
128 GPIO10_GPIO, /* WiFi LED */
129 GPIO83_GPIO, /* Charging LED */
130 GPIO85_GPIO, /* Charged LED */
133 GPIO28_I2S_BITCLK_OUT,
135 GPIO30_I2S_SDATA_OUT,
140 GPIO0_GPIO, /* AC power detect */
141 GPIO1_GPIO, /* Power button */
142 GPIO37_GPIO, /* Headphone detect */
143 GPIO98_GPIO, /* Lid switch */
144 GPIO14_GPIO, /* WiFi Power */
145 GPIO24_GPIO, /* WiFi CS */
146 GPIO36_GPIO, /* WiFi IRQ */
147 GPIO88_GPIO, /* LCD CS */
150 /******************************************************************************
152 ******************************************************************************/
153 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
154 static struct resource z2_flash_resource = {
155 .start = PXA_CS0_PHYS,
156 .end = PXA_CS0_PHYS + SZ_8M - 1,
157 .flags = IORESOURCE_MEM,
160 static struct mtd_partition z2_flash_parts[] = {
162 .name = "U-Boot Bootloader",
166 .name = "U-Boot Environment",
172 .size = MTDPART_SIZ_FULL,
176 static struct physmap_flash_data z2_flash_data = {
178 .parts = z2_flash_parts,
179 .nr_parts = ARRAY_SIZE(z2_flash_parts),
182 static struct platform_device z2_flash = {
183 .name = "physmap-flash",
185 .resource = &z2_flash_resource,
188 .platform_data = &z2_flash_data,
192 static void __init z2_nor_init(void)
194 platform_device_register(&z2_flash);
197 static inline void z2_nor_init(void) {}
200 /******************************************************************************
202 ******************************************************************************/
203 #if defined(CONFIG_BACKLIGHT_PWM) || defined(CONFIG_BACKLIGHT_PWM_MODULE)
204 static struct pwm_lookup z2_pwm_lookup[] = {
205 PWM_LOOKUP("pxa27x-pwm.1", 0, "pwm-backlight.0", NULL, 1260320,
206 PWM_POLARITY_NORMAL),
207 PWM_LOOKUP("pxa27x-pwm.0", 1, "pwm-backlight.1", NULL, 1260320,
208 PWM_POLARITY_NORMAL),
211 static struct platform_pwm_backlight_data z2_backlight_data[] = {
213 /* Keypad Backlight */
214 .max_brightness = 1023,
220 .max_brightness = 1023,
221 .dft_brightness = 512,
226 static struct platform_device z2_backlight_devices[2] = {
228 .name = "pwm-backlight",
231 .platform_data = &z2_backlight_data[1],
235 .name = "pwm-backlight",
238 .platform_data = &z2_backlight_data[0],
242 static void __init z2_pwm_init(void)
244 pwm_add_table(z2_pwm_lookup, ARRAY_SIZE(z2_pwm_lookup));
245 platform_device_register(&z2_backlight_devices[0]);
246 platform_device_register(&z2_backlight_devices[1]);
249 static inline void z2_pwm_init(void) {}
252 /******************************************************************************
254 ******************************************************************************/
255 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
256 static struct pxafb_mode_info z2_lcd_modes[] = {
273 static struct pxafb_mach_info z2_lcd_screen = {
274 .modes = z2_lcd_modes,
275 .num_modes = ARRAY_SIZE(z2_lcd_modes),
276 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_BIAS_ACTIVE_LOW |
277 LCD_ALTERNATE_MAPPING,
280 static void __init z2_lcd_init(void)
282 pxa_set_fb_info(NULL, &z2_lcd_screen);
285 static inline void z2_lcd_init(void) {}
288 /******************************************************************************
289 * SD/MMC card controller
290 ******************************************************************************/
291 #if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
292 static struct pxamci_platform_data z2_mci_platform_data = {
293 .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
294 .detect_delay_ms = 200,
297 static struct gpiod_lookup_table z2_mci_gpio_table = {
298 .dev_id = "pxa2xx-mci.0",
300 GPIO_LOOKUP("gpio-pxa", GPIO96_ZIPITZ2_SD_DETECT,
301 "cd", GPIO_ACTIVE_LOW),
306 static void __init z2_mmc_init(void)
308 gpiod_add_lookup_table(&z2_mci_gpio_table);
309 pxa_set_mci_info(&z2_mci_platform_data);
312 static inline void z2_mmc_init(void) {}
315 /******************************************************************************
317 ******************************************************************************/
318 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
319 struct gpio_led z2_gpio_leds[] = {
321 .name = "z2:green:wifi",
322 .default_trigger = "none",
323 .gpio = GPIO10_ZIPITZ2_LED_WIFI,
326 .name = "z2:green:charged",
327 .default_trigger = "mmc0",
328 .gpio = GPIO85_ZIPITZ2_LED_CHARGED,
331 .name = "z2:amber:charging",
332 .default_trigger = "Z2-charging-or-full",
333 .gpio = GPIO83_ZIPITZ2_LED_CHARGING,
338 static struct gpio_led_platform_data z2_gpio_led_info = {
339 .leds = z2_gpio_leds,
340 .num_leds = ARRAY_SIZE(z2_gpio_leds),
343 static struct platform_device z2_leds = {
347 .platform_data = &z2_gpio_led_info,
351 static void __init z2_leds_init(void)
353 platform_device_register(&z2_leds);
356 static inline void z2_leds_init(void) {}
359 /******************************************************************************
361 ******************************************************************************/
362 #if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
363 static const unsigned int z2_matrix_keys[] = {
364 KEY(0, 0, KEY_OPTION),
368 KEY(4, 0, KEY_RIGHT),
370 KEY(6, 0, KEY_KPPLUS),
377 KEY(5, 1, KEY_ENTER),
378 KEY(6, 1, KEY_KPMINUS),
380 KEY(0, 2, KEY_PAGEUP),
385 KEY(5, 2, KEY_LEFTALT),
387 KEY(0, 3, KEY_PAGEDOWN),
392 KEY(5, 3, KEY_LEFTSHIFT),
399 KEY(5, 4, KEY_LEFTCTRL),
406 KEY(5, 5, KEY_SPACE),
408 KEY(0, 6, KEY_STOPCD),
411 KEY(3, 6, KEY_BACKSPACE),
413 KEY(5, 6, KEY_COMMA),
415 KEY(0, 7, KEY_PLAYCD),
419 KEY(4, 7, KEY_SEMICOLON),
423 static struct matrix_keymap_data z2_matrix_keymap_data = {
424 .keymap = z2_matrix_keys,
425 .keymap_size = ARRAY_SIZE(z2_matrix_keys),
428 static struct pxa27x_keypad_platform_data z2_keypad_platform_data = {
429 .matrix_key_rows = 7,
430 .matrix_key_cols = 8,
431 .matrix_keymap_data = &z2_matrix_keymap_data,
433 .debounce_interval = 30,
436 static void __init z2_mkp_init(void)
438 pxa_set_keypad_info(&z2_keypad_platform_data);
441 static inline void z2_mkp_init(void) {}
444 /******************************************************************************
446 ******************************************************************************/
447 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
448 static struct gpio_keys_button z2_pxa_buttons[] = {
451 .gpio = GPIO1_ZIPITZ2_POWER_BUTTON,
453 .desc = "Power Button",
459 .gpio = GPIO98_ZIPITZ2_LID_BUTTON,
461 .desc = "Lid Switch",
467 static struct gpio_keys_platform_data z2_pxa_keys_data = {
468 .buttons = z2_pxa_buttons,
469 .nbuttons = ARRAY_SIZE(z2_pxa_buttons),
472 static struct platform_device z2_pxa_keys = {
476 .platform_data = &z2_pxa_keys_data,
480 static void __init z2_keys_init(void)
482 platform_device_register(&z2_pxa_keys);
485 static inline void z2_keys_init(void) {}
488 /******************************************************************************
490 ******************************************************************************/
491 #if defined(CONFIG_I2C_PXA) || defined(CONFIG_I2C_PXA_MODULE)
492 static struct z2_battery_info batt_chip_info = {
494 .batt_I2C_addr = 0x55,
496 .charge_gpio = GPIO0_ZIPITZ2_AC_DETECT,
497 .min_voltage = 3475000,
498 .max_voltage = 4190000,
500 .batt_mult = 1000000,
501 .batt_tech = POWER_SUPPLY_TECHNOLOGY_LION,
505 static struct i2c_board_info __initdata z2_i2c_board_info[] = {
507 I2C_BOARD_INFO("aer915", 0x55),
508 .platform_data = &batt_chip_info,
510 I2C_BOARD_INFO("wm8750", 0x1b),
515 static void __init z2_i2c_init(void)
517 pxa_set_i2c_info(NULL);
518 i2c_register_board_info(0, ARRAY_AND_SIZE(z2_i2c_board_info));
521 static inline void z2_i2c_init(void) {}
524 /******************************************************************************
525 * SSP Devices - WiFi and LCD control
526 ******************************************************************************/
527 #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
529 static int z2_lbs_spi_setup(struct spi_device *spi)
533 ret = gpio_request(GPIO14_ZIPITZ2_WIFI_POWER, "WiFi Power");
537 ret = gpio_direction_output(GPIO14_ZIPITZ2_WIFI_POWER, 1);
541 /* Wait until card is powered on */
544 spi->bits_per_word = 16;
545 spi->mode = SPI_MODE_2,
552 gpio_free(GPIO14_ZIPITZ2_WIFI_POWER);
557 static int z2_lbs_spi_teardown(struct spi_device *spi)
559 gpio_set_value(GPIO14_ZIPITZ2_WIFI_POWER, 0);
560 gpio_free(GPIO14_ZIPITZ2_WIFI_POWER);
565 static struct pxa2xx_spi_chip z2_lbs_chip_info = {
569 .gpio_cs = GPIO24_ZIPITZ2_WIFI_CS,
572 static struct libertas_spi_platform_data z2_lbs_pdata = {
573 .use_dummy_writes = 1,
574 .setup = z2_lbs_spi_setup,
575 .teardown = z2_lbs_spi_teardown,
579 static struct pxa2xx_spi_chip lms283_chip_info = {
583 .gpio_cs = GPIO88_ZIPITZ2_LCD_CS,
586 static const struct lms283gf05_pdata lms283_pdata = {
587 .reset_gpio = GPIO19_ZIPITZ2_LCD_RESET,
590 static struct spi_board_info spi_board_info[] __initdata = {
592 .modalias = "libertas_spi",
593 .platform_data = &z2_lbs_pdata,
594 .controller_data = &z2_lbs_chip_info,
595 .irq = PXA_GPIO_TO_IRQ(GPIO36_ZIPITZ2_WIFI_IRQ),
596 .max_speed_hz = 13000000,
601 .modalias = "lms283gf05",
602 .controller_data = &lms283_chip_info,
603 .platform_data = &lms283_pdata,
604 .max_speed_hz = 400000,
610 static struct pxa2xx_spi_controller pxa_ssp1_master_info = {
615 static struct pxa2xx_spi_controller pxa_ssp2_master_info = {
619 static void __init z2_spi_init(void)
621 pxa2xx_set_spi_info(1, &pxa_ssp1_master_info);
622 pxa2xx_set_spi_info(2, &pxa_ssp2_master_info);
623 spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
626 static inline void z2_spi_init(void) {}
629 /******************************************************************************
630 * Core power regulator
631 ******************************************************************************/
632 #if defined(CONFIG_REGULATOR_TPS65023) || \
633 defined(CONFIG_REGULATOR_TPS65023_MODULE)
634 static struct regulator_consumer_supply z2_tps65021_consumers[] = {
635 REGULATOR_SUPPLY("vcc_core", NULL),
638 static struct regulator_init_data z2_tps65021_info[] = {
641 .name = "vcc_core range",
645 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
647 .consumer_supplies = z2_tps65021_consumers,
648 .num_consumer_supplies = ARRAY_SIZE(z2_tps65021_consumers),
680 static struct i2c_board_info __initdata z2_pi2c_board_info[] = {
682 I2C_BOARD_INFO("tps65021", 0x48),
683 .platform_data = &z2_tps65021_info,
687 static void __init z2_pmic_init(void)
689 pxa27x_set_i2c_power_info(NULL);
690 i2c_register_board_info(1, ARRAY_AND_SIZE(z2_pi2c_board_info));
693 static inline void z2_pmic_init(void) {}
697 static void z2_power_off(void)
699 /* We're using deep sleep as poweroff, so clear PSPR to ensure that
700 * bootloader will jump to its entry point in resume handler
704 pxa27x_set_pwrmode(PWRMODE_DEEPSLEEP);
705 pxa27x_cpu_pm_enter(PM_SUSPEND_MEM);
708 #define z2_power_off NULL
711 /******************************************************************************
713 ******************************************************************************/
714 static void __init z2_init(void)
716 pxa2xx_mfp_config(ARRAY_AND_SIZE(z2_pin_config));
718 pxa_set_ffuart_info(NULL);
719 pxa_set_btuart_info(NULL);
720 pxa_set_stuart_info(NULL);
733 pm_power_off = z2_power_off;
736 MACHINE_START(ZIPIT2, "Zipit Z2")
737 .atag_offset = 0x100,
738 .map_io = pxa27x_map_io,
739 .nr_irqs = PXA_NR_IRQS,
740 .init_irq = pxa27x_init_irq,
741 .handle_irq = pxa27x_handle_irq,
742 .init_time = pxa_timer_init,
743 .init_machine = z2_init,
744 .restart = pxa_restart,