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 <mach/pxafb.h>
42 #include <plat/pxa27x_keypad.h>
47 /******************************************************************************
49 ******************************************************************************/
50 static unsigned long z2_pin_config
[] = {
52 /* LCD - 16bpp Active TFT */
73 GPIO19_GPIO
, /* LCD reset */
74 GPIO88_GPIO
, /* LCD chipselect */
77 GPIO115_PWM1_OUT
, /* Keypad Backlight */
78 GPIO11_PWM2_OUT
, /* LCD Backlight */
87 GPIO96_GPIO
, /* SD detect */
94 GPIO100_KP_MKIN_0
| WAKEUP_ON_LEVEL_HIGH
,
95 GPIO101_KP_MKIN_1
| WAKEUP_ON_LEVEL_HIGH
,
96 GPIO102_KP_MKIN_2
| WAKEUP_ON_LEVEL_HIGH
,
97 GPIO34_KP_MKIN_3
| WAKEUP_ON_LEVEL_HIGH
,
98 GPIO38_KP_MKIN_4
| WAKEUP_ON_LEVEL_HIGH
,
99 GPIO16_KP_MKIN_5
| WAKEUP_ON_LEVEL_HIGH
,
100 GPIO17_KP_MKIN_6
| WAKEUP_ON_LEVEL_HIGH
,
115 GPIO23_SSP1_SCLK
, /* SSP1_SCK */
116 GPIO25_SSP1_TXD
, /* SSP1_TXD */
117 GPIO26_SSP1_RXD
, /* SSP1_RXD */
120 GPIO22_SSP2_SCLK
, /* SSP2_SCK */
121 GPIO13_SSP2_TXD
, /* SSP2_TXD */
122 GPIO40_SSP2_RXD
, /* SSP2_RXD */
125 GPIO10_GPIO
, /* WiFi LED */
126 GPIO83_GPIO
, /* Charging LED */
127 GPIO85_GPIO
, /* Charged LED */
130 GPIO28_I2S_BITCLK_OUT
,
132 GPIO30_I2S_SDATA_OUT
,
137 GPIO0_GPIO
, /* AC power detect */
138 GPIO1_GPIO
, /* Power button */
139 GPIO37_GPIO
, /* Headphone detect */
140 GPIO98_GPIO
, /* Lid switch */
141 GPIO14_GPIO
, /* WiFi Reset */
142 GPIO15_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,
207 .dft_brightness
= 512,
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 set_pxa_fb_info(&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
= "none",
313 .gpio
= GPIO85_ZIPITZ2_LED_CHARGED
,
316 .name
= "z2:amber:charging",
317 .default_trigger
= "none",
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 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 pxa27x_keypad_platform_data z2_keypad_platform_data
= {
409 .matrix_key_rows
= 7,
410 .matrix_key_cols
= 8,
411 .matrix_key_map
= z2_matrix_keys
,
412 .matrix_key_map_size
= ARRAY_SIZE(z2_matrix_keys
),
414 .debounce_interval
= 30,
417 static void __init
z2_mkp_init(void)
419 pxa_set_keypad_info(&z2_keypad_platform_data
);
422 static inline void z2_mkp_init(void) {}
425 /******************************************************************************
427 ******************************************************************************/
428 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
429 static struct gpio_keys_button z2_pxa_buttons
[] = {
430 {KEY_POWER
, GPIO1_ZIPITZ2_POWER_BUTTON
, 0, "Power Button" },
431 {KEY_CLOSE
, GPIO98_ZIPITZ2_LID_BUTTON
, 0, "Lid Button" },
434 static struct gpio_keys_platform_data z2_pxa_keys_data
= {
435 .buttons
= z2_pxa_buttons
,
436 .nbuttons
= ARRAY_SIZE(z2_pxa_buttons
),
439 static struct platform_device z2_pxa_keys
= {
443 .platform_data
= &z2_pxa_keys_data
,
447 static void __init
z2_keys_init(void)
449 platform_device_register(&z2_pxa_keys
);
452 static inline void z2_keys_init(void) {}
455 /******************************************************************************
457 ******************************************************************************/
458 #if defined(CONFIG_I2C_PXA) || defined(CONFIG_I2C_PXA_MODULE)
459 static struct z2_battery_info batt_chip_info
= {
461 .batt_I2C_addr
= 0x55,
463 .charge_gpio
= GPIO0_ZIPITZ2_AC_DETECT
,
464 .min_voltage
= 2400000,
465 .max_voltage
= 3700000,
467 .batt_mult
= 1000000,
468 .batt_tech
= POWER_SUPPLY_TECHNOLOGY_LION
,
472 static struct i2c_board_info __initdata z2_i2c_board_info
[] = {
474 I2C_BOARD_INFO("aer915", 0x55),
475 .platform_data
= &batt_chip_info
,
477 I2C_BOARD_INFO("wm8750", 0x1b),
482 static void __init
z2_i2c_init(void)
484 pxa_set_i2c_info(NULL
);
485 i2c_register_board_info(0, ARRAY_AND_SIZE(z2_i2c_board_info
));
488 static inline void z2_i2c_init(void) {}
491 /******************************************************************************
492 * SSP Devices - WiFi and LCD control
493 ******************************************************************************/
494 #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
496 static int z2_lbs_spi_setup(struct spi_device
*spi
)
500 ret
= gpio_request(GPIO15_ZIPITZ2_WIFI_POWER
, "WiFi Power");
504 ret
= gpio_direction_output(GPIO15_ZIPITZ2_WIFI_POWER
, 1);
508 ret
= gpio_request(GPIO14_ZIPITZ2_WIFI_RESET
, "WiFi Reset");
512 ret
= gpio_direction_output(GPIO14_ZIPITZ2_WIFI_RESET
, 0);
518 gpio_set_value(GPIO14_ZIPITZ2_WIFI_RESET
, 1);
521 spi
->bits_per_word
= 16;
522 spi
->mode
= SPI_MODE_2
,
529 gpio_free(GPIO14_ZIPITZ2_WIFI_RESET
);
531 gpio_free(GPIO15_ZIPITZ2_WIFI_POWER
);
536 static int z2_lbs_spi_teardown(struct spi_device
*spi
)
538 gpio_set_value(GPIO14_ZIPITZ2_WIFI_RESET
, 0);
539 gpio_set_value(GPIO15_ZIPITZ2_WIFI_POWER
, 0);
540 gpio_free(GPIO14_ZIPITZ2_WIFI_RESET
);
541 gpio_free(GPIO15_ZIPITZ2_WIFI_POWER
);
546 static struct pxa2xx_spi_chip z2_lbs_chip_info
= {
550 .gpio_cs
= GPIO24_ZIPITZ2_WIFI_CS
,
553 static struct libertas_spi_platform_data z2_lbs_pdata
= {
554 .use_dummy_writes
= 1,
555 .setup
= z2_lbs_spi_setup
,
556 .teardown
= z2_lbs_spi_teardown
,
560 static struct pxa2xx_spi_chip lms283_chip_info
= {
564 .gpio_cs
= GPIO88_ZIPITZ2_LCD_CS
,
567 static const struct lms283gf05_pdata lms283_pdata
= {
568 .reset_gpio
= GPIO19_ZIPITZ2_LCD_RESET
,
571 static struct spi_board_info spi_board_info
[] __initdata
= {
573 .modalias
= "libertas_spi",
574 .platform_data
= &z2_lbs_pdata
,
575 .controller_data
= &z2_lbs_chip_info
,
576 .irq
= gpio_to_irq(GPIO36_ZIPITZ2_WIFI_IRQ
),
577 .max_speed_hz
= 13000000,
582 .modalias
= "lms283gf05",
583 .controller_data
= &lms283_chip_info
,
584 .platform_data
= &lms283_pdata
,
585 .max_speed_hz
= 400000,
591 static struct pxa2xx_spi_master pxa_ssp1_master_info
= {
592 .clock_enable
= CKEN_SSP
,
597 static struct pxa2xx_spi_master pxa_ssp2_master_info
= {
598 .clock_enable
= CKEN_SSP2
,
602 static void __init
z2_spi_init(void)
604 pxa2xx_set_spi_info(1, &pxa_ssp1_master_info
);
605 pxa2xx_set_spi_info(2, &pxa_ssp2_master_info
);
606 spi_register_board_info(spi_board_info
, ARRAY_SIZE(spi_board_info
));
609 static inline void z2_spi_init(void) {}
612 /******************************************************************************
613 * Core power regulator
614 ******************************************************************************/
615 #if defined(CONFIG_REGULATOR_TPS65023) || \
616 defined(CONFIG_REGULATOR_TPS65023_MODULE)
617 static struct regulator_consumer_supply z2_tps65021_consumers
[] = {
619 .supply
= "vcc_core",
623 static struct regulator_init_data z2_tps65021_info
[] = {
626 .name
= "vcc_core range",
630 .valid_ops_mask
= REGULATOR_CHANGE_VOLTAGE
,
632 .consumer_supplies
= z2_tps65021_consumers
,
633 .num_consumer_supplies
= ARRAY_SIZE(z2_tps65021_consumers
),
665 static struct i2c_board_info __initdata z2_pi2c_board_info
[] = {
667 I2C_BOARD_INFO("tps65021", 0x48),
668 .platform_data
= &z2_tps65021_info
,
672 static void __init
z2_pmic_init(void)
674 pxa27x_set_i2c_power_info(NULL
);
675 i2c_register_board_info(1, ARRAY_AND_SIZE(z2_pi2c_board_info
));
678 static inline void z2_pmic_init(void) {}
681 /******************************************************************************
683 ******************************************************************************/
684 static void __init
z2_init(void)
686 pxa2xx_mfp_config(ARRAY_AND_SIZE(z2_pin_config
));
688 pxa_set_ffuart_info(NULL
);
689 pxa_set_btuart_info(NULL
);
690 pxa_set_stuart_info(NULL
);
704 MACHINE_START(ZIPIT2
, "Zipit Z2")
705 .boot_params
= 0xa0000100,
706 .map_io
= pxa27x_map_io
,
707 .init_irq
= pxa27x_init_irq
,
709 .init_machine
= z2_init
,