1 // SPDX-License-Identifier: GPL-2.0-only
3 * Hardware definitions for Palm Zire72
6 * Vladimir "Farcaller" Pouzanov <farcaller@gmail.com>
7 * Sergey Lapin <slapin@ossfans.org>
8 * Alex Osborne <bobofdoom@gmail.com>
9 * Jan Herman <2hp@seznam.cz>
11 * Rewrite for mainline:
12 * Marek Vasut <marek.vasut@gmail.com>
14 * (find more info at www.hackndev.com)
17 #include <linux/platform_device.h>
18 #include <linux/syscore_ops.h>
19 #include <linux/delay.h>
20 #include <linux/irq.h>
21 #include <linux/gpio_keys.h>
22 #include <linux/input.h>
23 #include <linux/pda_power.h>
24 #include <linux/pwm_backlight.h>
25 #include <linux/gpio.h>
26 #include <linux/wm97xx.h>
27 #include <linux/power_supply.h>
28 #include <linux/platform_data/i2c-gpio.h>
29 #include <linux/gpio/machine.h>
31 #include <asm/mach-types.h>
32 #include <asm/suspend.h>
33 #include <asm/mach/arch.h>
34 #include <asm/mach/map.h>
37 #include <mach/audio.h>
39 #include <linux/platform_data/mmc-pxamci.h>
40 #include <linux/platform_data/video-pxafb.h>
41 #include <linux/platform_data/irda-pxaficp.h>
42 #include <linux/platform_data/keypad-pxa27x.h>
44 #include <linux/platform_data/asoc-palm27x.h>
48 #include <linux/platform_data/media/camera-pxa.h>
50 #include <media/soc_camera.h>
55 /******************************************************************************
57 ******************************************************************************/
58 static unsigned long palmz72_pin_config[] __initdata = {
66 GPIO14_GPIO, /* SD detect */
67 GPIO115_GPIO, /* SD RO */
68 GPIO98_GPIO, /* SD power */
72 GPIO29_AC97_SDATA_IN_0,
73 GPIO30_AC97_SDATA_OUT,
79 GPIO49_GPIO, /* ir disable */
87 GPIO15_GPIO, /* usb detect */
88 GPIO95_GPIO, /* usb pullup */
91 GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
92 GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
93 GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
94 GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
100 GPIOxx_LCD_TFT_16BPP,
102 GPIO20_GPIO, /* bl power */
103 GPIO21_GPIO, /* LCD border switch */
104 GPIO22_GPIO, /* LCD border color */
105 GPIO96_GPIO, /* lcd power */
121 GPIO56_GPIO, /* OV9640 Powerdown */
122 GPIO57_GPIO, /* OV9640 Reset */
123 GPIO91_GPIO, /* OV9640 Power */
126 GPIO117_GPIO, /* I2C_SCL */
127 GPIO118_GPIO, /* I2C_SDA */
130 GPIO0_GPIO | WAKEUP_ON_LEVEL_HIGH, /* power detect */
131 GPIO88_GPIO, /* green led */
132 GPIO27_GPIO, /* WM9712 IRQ */
135 /******************************************************************************
137 ******************************************************************************/
138 #if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
139 static const unsigned int palmz72_matrix_keys[] = {
140 KEY(0, 0, KEY_POWER),
142 KEY(0, 2, KEY_ENTER),
151 KEY(3, 0, KEY_RIGHT),
155 static struct matrix_keymap_data almz72_matrix_keymap_data = {
156 .keymap = palmz72_matrix_keys,
157 .keymap_size = ARRAY_SIZE(palmz72_matrix_keys),
160 static struct pxa27x_keypad_platform_data palmz72_keypad_platform_data = {
161 .matrix_key_rows = 4,
162 .matrix_key_cols = 3,
163 .matrix_keymap_data = &almz72_matrix_keymap_data,
165 .debounce_interval = 30,
168 static void __init palmz72_kpc_init(void)
170 pxa_set_keypad_info(&palmz72_keypad_platform_data);
173 static inline void palmz72_kpc_init(void) {}
176 /******************************************************************************
178 ******************************************************************************/
179 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
180 static struct gpio_led gpio_leds[] = {
182 .name = "palmz72:green:led",
183 .default_trigger = "none",
184 .gpio = GPIO_NR_PALMZ72_LED_GREEN,
188 static struct gpio_led_platform_data gpio_led_info = {
190 .num_leds = ARRAY_SIZE(gpio_leds),
193 static struct platform_device palmz72_leds = {
197 .platform_data = &gpio_led_info,
201 static void __init palmz72_leds_init(void)
203 platform_device_register(&palmz72_leds);
206 static inline void palmz72_leds_init(void) {}
211 /* We have some black magic here
212 * PalmOS ROM on recover expects special struct physical address
213 * to be transferred via PSPR. Using this struct PalmOS restores
214 * its state after sleep. As for Linux, we need to setup it the
215 * same way. More than that, PalmOS ROM changes some values in memory.
216 * For now only one location is found, which needs special treatment.
217 * Thanks to Alex Osborne, Andrzej Zaborowski, and lots of other people
218 * for reading backtraces for me :)
221 #define PALMZ72_SAVE_DWORD ((unsigned long *)0xc0000050)
223 static struct palmz72_resume_info palmz72_resume_info = {
227 /* reset state, MMU off etc */
235 static unsigned long store_ptr;
237 /* syscore_ops for Palm Zire 72 PM */
239 static int palmz72_pm_suspend(void)
241 /* setup the resume_info struct for the original bootloader */
242 palmz72_resume_info.resume_addr = (u32) cpu_resume;
244 /* Storing memory touched by ROM */
245 store_ptr = *PALMZ72_SAVE_DWORD;
247 /* Setting PSPR to a proper value */
248 PSPR = __pa_symbol(&palmz72_resume_info);
253 static void palmz72_pm_resume(void)
255 *PALMZ72_SAVE_DWORD = store_ptr;
258 static struct syscore_ops palmz72_pm_syscore_ops = {
259 .suspend = palmz72_pm_suspend,
260 .resume = palmz72_pm_resume,
263 static int __init palmz72_pm_init(void)
265 if (machine_is_palmz72()) {
266 register_syscore_ops(&palmz72_pm_syscore_ops);
272 device_initcall(palmz72_pm_init);
275 /******************************************************************************
277 ******************************************************************************/
278 #if defined(CONFIG_SOC_CAMERA_OV9640) || \
279 defined(CONFIG_SOC_CAMERA_OV9640_MODULE)
280 static struct pxacamera_platform_data palmz72_pxacamera_platform_data = {
281 .flags = PXA_CAMERA_MASTER | PXA_CAMERA_DATAWIDTH_8 |
282 PXA_CAMERA_PCLK_EN | PXA_CAMERA_MCLK_EN,
286 /* Board I2C devices. */
287 static struct i2c_board_info palmz72_i2c_device[] = {
289 I2C_BOARD_INFO("ov9640", 0x30),
293 static int palmz72_camera_power(struct device *dev, int power)
295 gpio_set_value(GPIO_NR_PALMZ72_CAM_PWDN, !power);
300 static int palmz72_camera_reset(struct device *dev)
302 gpio_set_value(GPIO_NR_PALMZ72_CAM_RESET, 1);
304 gpio_set_value(GPIO_NR_PALMZ72_CAM_RESET, 0);
309 static struct soc_camera_link palmz72_iclink = {
310 .bus_id = 0, /* Match id in pxa27x_device_camera in device.c */
311 .board_info = &palmz72_i2c_device[0],
313 .module_name = "ov96xx",
314 .power = &palmz72_camera_power,
315 .reset = &palmz72_camera_reset,
316 .flags = SOCAM_DATAWIDTH_8,
319 static struct gpiod_lookup_table palmz72_i2c_gpiod_table = {
320 .dev_id = "i2c-gpio.0",
322 GPIO_LOOKUP_IDX("gpio-pxa", 118, NULL, 0,
323 GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
324 GPIO_LOOKUP_IDX("gpio-pxa", 117, NULL, 1,
325 GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
329 static struct i2c_gpio_platform_data palmz72_i2c_bus_data = {
334 static struct platform_device palmz72_i2c_bus_device = {
336 .id = 0, /* we use this as a replacement for i2c-pxa */
338 .platform_data = &palmz72_i2c_bus_data,
342 static struct platform_device palmz72_camera = {
343 .name = "soc-camera-pdrv",
346 .platform_data = &palmz72_iclink,
350 /* Here we request the camera GPIOs and configure them. We power up the camera
351 * module, deassert the reset pin, but put it into powerdown (low to no power
352 * consumption) mode. This allows us to later bring the module up fast. */
353 static struct gpio palmz72_camera_gpios[] = {
354 { GPIO_NR_PALMZ72_CAM_POWER, GPIOF_INIT_HIGH,"Camera DVDD" },
355 { GPIO_NR_PALMZ72_CAM_RESET, GPIOF_INIT_LOW, "Camera RESET" },
356 { GPIO_NR_PALMZ72_CAM_PWDN, GPIOF_INIT_LOW, "Camera PWDN" },
359 static inline void __init palmz72_cam_gpio_init(void)
363 ret = gpio_request_array(ARRAY_AND_SIZE(palmz72_camera_gpios));
365 gpio_free_array(ARRAY_AND_SIZE(palmz72_camera_gpios));
367 printk(KERN_ERR "Camera GPIO init failed!\n");
372 static void __init palmz72_camera_init(void)
374 palmz72_cam_gpio_init();
375 pxa_set_camera_info(&palmz72_pxacamera_platform_data);
376 gpiod_add_lookup_table(&palmz72_i2c_gpiod_table);
377 platform_device_register(&palmz72_i2c_bus_device);
378 platform_device_register(&palmz72_camera);
381 static inline void palmz72_camera_init(void) {}
384 static struct gpiod_lookup_table palmz72_mci_gpio_table = {
385 .dev_id = "pxa2xx-mci.0",
387 GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMZ72_SD_DETECT_N,
388 "cd", GPIO_ACTIVE_LOW),
389 GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMZ72_SD_RO,
390 "wp", GPIO_ACTIVE_LOW),
391 GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMZ72_SD_POWER_N,
392 "power", GPIO_ACTIVE_LOW),
397 /******************************************************************************
399 ******************************************************************************/
400 static void __init palmz72_init(void)
402 pxa2xx_mfp_config(ARRAY_AND_SIZE(palmz72_pin_config));
403 pxa_set_ffuart_info(NULL);
404 pxa_set_btuart_info(NULL);
405 pxa_set_stuart_info(NULL);
407 palm27x_mmc_init(&palmz72_mci_gpio_table);
408 palm27x_lcd_init(-1, &palm_320x320_lcd_mode);
409 palm27x_udc_init(GPIO_NR_PALMZ72_USB_DETECT_N,
410 GPIO_NR_PALMZ72_USB_PULLUP, 0);
411 palm27x_irda_init(GPIO_NR_PALMZ72_IR_DISABLE);
412 palm27x_ac97_init(PALMZ72_BAT_MIN_VOLTAGE, PALMZ72_BAT_MAX_VOLTAGE,
414 palm27x_pwm_init(-1, -1);
415 palm27x_power_init(-1, -1);
419 palmz72_camera_init();
422 MACHINE_START(PALMZ72, "Palm Zire72")
423 .atag_offset = 0x100,
424 .map_io = pxa27x_map_io,
425 .nr_irqs = PXA_NR_IRQS,
426 .init_irq = pxa27x_init_irq,
427 .handle_irq = pxa27x_handle_irq,
428 .init_time = pxa_timer_init,
429 .init_machine = palmz72_init,
430 .restart = pxa_restart,