1 // SPDX-License-Identifier: GPL-2.0-only
3 * linux/arch/arm/mach-pxa/z2.c
5 * Support for the Zipit Z2 Handheld device.
7 * Copyright (C) 2009-2010 Marek Vasut <marek.vasut@gmail.com>
9 * Based on research and code by: Ken McGuire
10 * Based on mainstone.c as modified for the Zipit Z2.
13 #include <linux/platform_device.h>
14 #include <linux/mtd/mtd.h>
15 #include <linux/mtd/partitions.h>
16 #include <linux/pwm.h>
17 #include <linux/pwm_backlight.h>
18 #include <linux/z2_battery.h>
19 #include <linux/dma-mapping.h>
20 #include <linux/spi/spi.h>
21 #include <linux/spi/pxa2xx_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/machine.h>
28 #include <linux/gpio_keys.h>
29 #include <linux/delay.h>
30 #include <linux/regulator/machine.h>
31 #include <linux/platform_data/i2c-pxa.h>
33 #include <asm/mach-types.h>
34 #include <asm/mach/arch.h>
37 #include "mfp-pxa27x.h"
39 #include <linux/platform_data/video-pxafb.h>
40 #include <linux/platform_data/mmc-pxamci.h>
41 #include <linux/platform_data/keypad-pxa27x.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 */
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 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 pwm_lookup z2_pwm_lookup[] = {
202 PWM_LOOKUP("pxa27x-pwm.1", 0, "pwm-backlight.0", NULL, 1260320,
203 PWM_POLARITY_NORMAL),
204 PWM_LOOKUP("pxa27x-pwm.0", 1, "pwm-backlight.1", NULL, 1260320,
205 PWM_POLARITY_NORMAL),
208 static struct platform_pwm_backlight_data z2_backlight_data[] = {
210 /* Keypad Backlight */
211 .max_brightness = 1023,
217 .max_brightness = 1023,
218 .dft_brightness = 512,
223 static struct platform_device z2_backlight_devices[2] = {
225 .name = "pwm-backlight",
228 .platform_data = &z2_backlight_data[1],
232 .name = "pwm-backlight",
235 .platform_data = &z2_backlight_data[0],
239 static void __init z2_pwm_init(void)
241 pwm_add_table(z2_pwm_lookup, ARRAY_SIZE(z2_pwm_lookup));
242 platform_device_register(&z2_backlight_devices[0]);
243 platform_device_register(&z2_backlight_devices[1]);
246 static inline void z2_pwm_init(void) {}
249 /******************************************************************************
251 ******************************************************************************/
252 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
253 static struct pxafb_mode_info z2_lcd_modes[] = {
270 static 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,
277 static void __init z2_lcd_init(void)
279 pxa_set_fb_info(NULL, &z2_lcd_screen);
282 static inline void z2_lcd_init(void) {}
285 /******************************************************************************
286 * SD/MMC card controller
287 ******************************************************************************/
288 #if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
289 static struct pxamci_platform_data z2_mci_platform_data = {
290 .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
291 .detect_delay_ms = 200,
294 static struct gpiod_lookup_table z2_mci_gpio_table = {
295 .dev_id = "pxa2xx-mci.0",
297 GPIO_LOOKUP("gpio-pxa", GPIO96_ZIPITZ2_SD_DETECT,
298 "cd", GPIO_ACTIVE_LOW),
303 static void __init z2_mmc_init(void)
305 gpiod_add_lookup_table(&z2_mci_gpio_table);
306 pxa_set_mci_info(&z2_mci_platform_data);
309 static inline void z2_mmc_init(void) {}
312 /******************************************************************************
314 ******************************************************************************/
315 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
316 struct gpio_led z2_gpio_leds[] = {
318 .name = "z2:green:wifi",
319 .default_trigger = "none",
320 .gpio = GPIO10_ZIPITZ2_LED_WIFI,
323 .name = "z2:green:charged",
324 .default_trigger = "mmc0",
325 .gpio = GPIO85_ZIPITZ2_LED_CHARGED,
328 .name = "z2:amber:charging",
329 .default_trigger = "Z2-charging-or-full",
330 .gpio = GPIO83_ZIPITZ2_LED_CHARGING,
335 static struct gpio_led_platform_data z2_gpio_led_info = {
336 .leds = z2_gpio_leds,
337 .num_leds = ARRAY_SIZE(z2_gpio_leds),
340 static struct platform_device z2_leds = {
344 .platform_data = &z2_gpio_led_info,
348 static void __init z2_leds_init(void)
350 platform_device_register(&z2_leds);
353 static inline void z2_leds_init(void) {}
356 /******************************************************************************
358 ******************************************************************************/
359 #if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
360 static const unsigned int z2_matrix_keys[] = {
361 KEY(0, 0, KEY_OPTION),
365 KEY(4, 0, KEY_RIGHT),
367 KEY(6, 0, KEY_KPPLUS),
374 KEY(5, 1, KEY_ENTER),
375 KEY(6, 1, KEY_KPMINUS),
377 KEY(0, 2, KEY_PAGEUP),
382 KEY(5, 2, KEY_LEFTALT),
384 KEY(0, 3, KEY_PAGEDOWN),
389 KEY(5, 3, KEY_LEFTSHIFT),
396 KEY(5, 4, KEY_LEFTCTRL),
403 KEY(5, 5, KEY_SPACE),
405 KEY(0, 6, KEY_STOPCD),
408 KEY(3, 6, KEY_BACKSPACE),
410 KEY(5, 6, KEY_COMMA),
412 KEY(0, 7, KEY_PLAYCD),
416 KEY(4, 7, KEY_SEMICOLON),
420 static struct matrix_keymap_data z2_matrix_keymap_data = {
421 .keymap = z2_matrix_keys,
422 .keymap_size = ARRAY_SIZE(z2_matrix_keys),
425 static struct pxa27x_keypad_platform_data z2_keypad_platform_data = {
426 .matrix_key_rows = 7,
427 .matrix_key_cols = 8,
428 .matrix_keymap_data = &z2_matrix_keymap_data,
430 .debounce_interval = 30,
433 static void __init z2_mkp_init(void)
435 pxa_set_keypad_info(&z2_keypad_platform_data);
438 static inline void z2_mkp_init(void) {}
441 /******************************************************************************
443 ******************************************************************************/
444 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
445 static struct gpio_keys_button z2_pxa_buttons[] = {
448 .gpio = GPIO1_ZIPITZ2_POWER_BUTTON,
450 .desc = "Power Button",
456 .gpio = GPIO98_ZIPITZ2_LID_BUTTON,
458 .desc = "Lid Switch",
464 static struct gpio_keys_platform_data z2_pxa_keys_data = {
465 .buttons = z2_pxa_buttons,
466 .nbuttons = ARRAY_SIZE(z2_pxa_buttons),
469 static struct platform_device z2_pxa_keys = {
473 .platform_data = &z2_pxa_keys_data,
477 static void __init z2_keys_init(void)
479 platform_device_register(&z2_pxa_keys);
482 static inline void z2_keys_init(void) {}
485 /******************************************************************************
487 ******************************************************************************/
488 #if defined(CONFIG_I2C_PXA) || defined(CONFIG_I2C_PXA_MODULE)
489 static struct z2_battery_info batt_chip_info = {
491 .batt_I2C_addr = 0x55,
493 .charge_gpio = GPIO0_ZIPITZ2_AC_DETECT,
494 .min_voltage = 3475000,
495 .max_voltage = 4190000,
497 .batt_mult = 1000000,
498 .batt_tech = POWER_SUPPLY_TECHNOLOGY_LION,
502 static struct i2c_board_info __initdata z2_i2c_board_info[] = {
504 I2C_BOARD_INFO("aer915", 0x55),
505 .platform_data = &batt_chip_info,
507 I2C_BOARD_INFO("wm8750", 0x1b),
512 static void __init z2_i2c_init(void)
514 pxa_set_i2c_info(NULL);
515 i2c_register_board_info(0, ARRAY_AND_SIZE(z2_i2c_board_info));
518 static inline void z2_i2c_init(void) {}
521 /******************************************************************************
522 * SSP Devices - WiFi and LCD control
523 ******************************************************************************/
524 #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
526 static int z2_lbs_spi_setup(struct spi_device *spi)
530 ret = gpio_request(GPIO14_ZIPITZ2_WIFI_POWER, "WiFi Power");
534 ret = gpio_direction_output(GPIO14_ZIPITZ2_WIFI_POWER, 1);
538 /* Wait until card is powered on */
541 spi->bits_per_word = 16;
542 spi->mode = SPI_MODE_2,
549 gpio_free(GPIO14_ZIPITZ2_WIFI_POWER);
554 static int z2_lbs_spi_teardown(struct spi_device *spi)
556 gpio_set_value(GPIO14_ZIPITZ2_WIFI_POWER, 0);
557 gpio_free(GPIO14_ZIPITZ2_WIFI_POWER);
562 static struct pxa2xx_spi_chip z2_lbs_chip_info = {
566 .gpio_cs = GPIO24_ZIPITZ2_WIFI_CS,
569 static struct libertas_spi_platform_data z2_lbs_pdata = {
570 .use_dummy_writes = 1,
571 .setup = z2_lbs_spi_setup,
572 .teardown = z2_lbs_spi_teardown,
576 static struct pxa2xx_spi_chip lms283_chip_info = {
580 .gpio_cs = GPIO88_ZIPITZ2_LCD_CS,
583 static const struct lms283gf05_pdata lms283_pdata = {
584 .reset_gpio = GPIO19_ZIPITZ2_LCD_RESET,
587 static struct spi_board_info spi_board_info[] __initdata = {
589 .modalias = "libertas_spi",
590 .platform_data = &z2_lbs_pdata,
591 .controller_data = &z2_lbs_chip_info,
592 .irq = PXA_GPIO_TO_IRQ(GPIO36_ZIPITZ2_WIFI_IRQ),
593 .max_speed_hz = 13000000,
598 .modalias = "lms283gf05",
599 .controller_data = &lms283_chip_info,
600 .platform_data = &lms283_pdata,
601 .max_speed_hz = 400000,
607 static struct pxa2xx_spi_controller pxa_ssp1_master_info = {
612 static struct pxa2xx_spi_controller pxa_ssp2_master_info = {
616 static void __init z2_spi_init(void)
618 pxa2xx_set_spi_info(1, &pxa_ssp1_master_info);
619 pxa2xx_set_spi_info(2, &pxa_ssp2_master_info);
620 spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
623 static inline void z2_spi_init(void) {}
626 /******************************************************************************
627 * Core power regulator
628 ******************************************************************************/
629 #if defined(CONFIG_REGULATOR_TPS65023) || \
630 defined(CONFIG_REGULATOR_TPS65023_MODULE)
631 static struct regulator_consumer_supply z2_tps65021_consumers[] = {
632 REGULATOR_SUPPLY("vcc_core", NULL),
635 static struct regulator_init_data z2_tps65021_info[] = {
638 .name = "vcc_core range",
642 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
644 .consumer_supplies = z2_tps65021_consumers,
645 .num_consumer_supplies = ARRAY_SIZE(z2_tps65021_consumers),
677 static struct i2c_board_info __initdata z2_pi2c_board_info[] = {
679 I2C_BOARD_INFO("tps65021", 0x48),
680 .platform_data = &z2_tps65021_info,
684 static void __init z2_pmic_init(void)
686 pxa27x_set_i2c_power_info(NULL);
687 i2c_register_board_info(1, ARRAY_AND_SIZE(z2_pi2c_board_info));
690 static inline void z2_pmic_init(void) {}
694 static void z2_power_off(void)
696 /* We're using deep sleep as poweroff, so clear PSPR to ensure that
697 * bootloader will jump to its entry point in resume handler
701 pxa27x_set_pwrmode(PWRMODE_DEEPSLEEP);
702 pxa27x_cpu_pm_enter(PM_SUSPEND_MEM);
705 #define z2_power_off NULL
708 /******************************************************************************
710 ******************************************************************************/
711 static void __init z2_init(void)
713 pxa2xx_mfp_config(ARRAY_AND_SIZE(z2_pin_config));
715 pxa_set_ffuart_info(NULL);
716 pxa_set_btuart_info(NULL);
717 pxa_set_stuart_info(NULL);
730 pm_power_off = z2_power_off;
733 MACHINE_START(ZIPIT2, "Zipit Z2")
734 .atag_offset = 0x100,
735 .map_io = pxa27x_map_io,
736 .nr_irqs = PXA_NR_IRQS,
737 .init_irq = pxa27x_init_irq,
738 .handle_irq = pxa27x_handle_irq,
739 .init_time = pxa_timer_init,
740 .init_machine = z2_init,
741 .restart = pxa_restart,