1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Hardware definitions for Palm Zire72
4 *
5 * Authors:
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>
10 *
11 * Rewrite for mainline:
12 *	Marek Vasut <marek.vasut@gmail.com>
13 *
14 * (find more info at www.hackndev.com)
15 */
16
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>
30
31#include <asm/mach-types.h>
32#include <asm/suspend.h>
33#include <asm/mach/arch.h>
34#include <asm/mach/map.h>
35
36#include "pxa27x.h"
37#include <mach/audio.h>
38#include "palmz72.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>
43#include "udc.h"
44#include <linux/platform_data/asoc-palm27x.h>
45#include "palm27x.h"
46
47#include "pm.h"
48#include <linux/platform_data/media/camera-pxa.h>
49
50#include "generic.h"
51#include "devices.h"
52
53/******************************************************************************
54 * Pin configuration
55 ******************************************************************************/
56static unsigned long palmz72_pin_config[] __initdata = {
57	/* MMC */
58	GPIO32_MMC_CLK,
59	GPIO92_MMC_DAT_0,
60	GPIO109_MMC_DAT_1,
61	GPIO110_MMC_DAT_2,
62	GPIO111_MMC_DAT_3,
63	GPIO112_MMC_CMD,
64	GPIO14_GPIO,	/* SD detect */
65	GPIO115_GPIO,	/* SD RO */
66	GPIO98_GPIO,	/* SD power */
67
68	/* AC97 */
69	GPIO28_AC97_BITCLK,
70	GPIO29_AC97_SDATA_IN_0,
71	GPIO30_AC97_SDATA_OUT,
72	GPIO31_AC97_SYNC,
73	GPIO89_AC97_SYSCLK,
74	GPIO113_AC97_nRESET,
75
76	/* IrDA */
77	GPIO49_GPIO,	/* ir disable */
78	GPIO46_FICP_RXD,
79	GPIO47_FICP_TXD,
80
81	/* PWM */
82	GPIO16_PWM0_OUT,
83
84	/* USB */
85	GPIO15_GPIO,	/* usb detect */
86	GPIO95_GPIO,	/* usb pullup */
87
88	/* Matrix keypad */
89	GPIO100_KP_MKIN_0	| WAKEUP_ON_LEVEL_HIGH,
90	GPIO101_KP_MKIN_1	| WAKEUP_ON_LEVEL_HIGH,
91	GPIO102_KP_MKIN_2	| WAKEUP_ON_LEVEL_HIGH,
92	GPIO97_KP_MKIN_3	| WAKEUP_ON_LEVEL_HIGH,
93	GPIO103_KP_MKOUT_0,
94	GPIO104_KP_MKOUT_1,
95	GPIO105_KP_MKOUT_2,
96
97	/* LCD */
98	GPIOxx_LCD_TFT_16BPP,
99
100	GPIO20_GPIO,	/* bl power */
101	GPIO21_GPIO,	/* LCD border switch */
102	GPIO22_GPIO,	/* LCD border color */
103	GPIO96_GPIO,	/* lcd power */
104
105	/* PXA Camera */
106	GPIO81_CIF_DD_0,
107	GPIO48_CIF_DD_5,
108	GPIO50_CIF_DD_3,
109	GPIO51_CIF_DD_2,
110	GPIO52_CIF_DD_4,
111	GPIO53_CIF_MCLK,
112	GPIO54_CIF_PCLK,
113	GPIO55_CIF_DD_1,
114	GPIO84_CIF_FV,
115	GPIO85_CIF_LV,
116	GPIO93_CIF_DD_6,
117	GPIO108_CIF_DD_7,
118
119	GPIO56_GPIO,	/* OV9640 Powerdown */
120	GPIO57_GPIO,	/* OV9640 Reset */
121	GPIO91_GPIO,	/* OV9640 Power */
122
123	/* I2C */
124	GPIO117_GPIO,	/* I2C_SCL */
125	GPIO118_GPIO,	/* I2C_SDA */
126
127	/* Misc. */
128	GPIO0_GPIO	| WAKEUP_ON_LEVEL_HIGH,	/* power detect */
129	GPIO88_GPIO,				/* green led */
130	GPIO27_GPIO,				/* WM9712 IRQ */
131};
132
133/******************************************************************************
134 * GPIO keyboard
135 ******************************************************************************/
136#if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
137static const unsigned int palmz72_matrix_keys[] = {
138	KEY(0, 0, KEY_POWER),
139	KEY(0, 1, KEY_F1),
140	KEY(0, 2, KEY_ENTER),
141
142	KEY(1, 0, KEY_F2),
143	KEY(1, 1, KEY_F3),
144	KEY(1, 2, KEY_F4),
145
146	KEY(2, 0, KEY_UP),
147	KEY(2, 2, KEY_DOWN),
148
149	KEY(3, 0, KEY_RIGHT),
150	KEY(3, 2, KEY_LEFT),
151};
152
153static struct matrix_keymap_data almz72_matrix_keymap_data = {
154	.keymap			= palmz72_matrix_keys,
155	.keymap_size		= ARRAY_SIZE(palmz72_matrix_keys),
156};
157
158static struct pxa27x_keypad_platform_data palmz72_keypad_platform_data = {
159	.matrix_key_rows	= 4,
160	.matrix_key_cols	= 3,
161	.matrix_keymap_data	= &almz72_matrix_keymap_data,
162
163	.debounce_interval	= 30,
164};
165
166static void __init palmz72_kpc_init(void)
167{
168	pxa_set_keypad_info(&palmz72_keypad_platform_data);
169}
170#else
171static inline void palmz72_kpc_init(void) {}
172#endif
173
174/******************************************************************************
175 * LEDs
176 ******************************************************************************/
177#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
178static struct gpio_led gpio_leds[] = {
179	{
180		.name			= "palmz72:green:led",
181		.default_trigger	= "none",
182		.gpio			= GPIO_NR_PALMZ72_LED_GREEN,
183	},
184};
185
186static struct gpio_led_platform_data gpio_led_info = {
187	.leds		= gpio_leds,
188	.num_leds	= ARRAY_SIZE(gpio_leds),
189};
190
191static struct platform_device palmz72_leds = {
192	.name	= "leds-gpio",
193	.id	= -1,
194	.dev	= {
195		.platform_data	= &gpio_led_info,
196	}
197};
198
199static void __init palmz72_leds_init(void)
200{
201	platform_device_register(&palmz72_leds);
202}
203#else
204static inline void palmz72_leds_init(void) {}
205#endif
206
207#ifdef CONFIG_PM
208
209/* We have some black magic here
210 * PalmOS ROM on recover expects special struct physical address
211 * to be transferred via PSPR. Using this struct PalmOS restores
212 * its state after sleep. As for Linux, we need to setup it the
213 * same way. More than that, PalmOS ROM changes some values in memory.
214 * For now only one location is found, which needs special treatment.
215 * Thanks to Alex Osborne, Andrzej Zaborowski, and lots of other people
216 * for reading backtraces for me :)
217 */
218
219#define PALMZ72_SAVE_DWORD ((unsigned long *)0xc0000050)
220
221static struct palmz72_resume_info palmz72_resume_info = {
222	.magic0 = 0xb4e6,
223	.magic1 = 1,
224
225	/* reset state, MMU off etc */
226	.arm_control = 0,
227	.aux_control = 0,
228	.ttb = 0,
229	.domain_access = 0,
230	.process_id = 0,
231};
232
233static unsigned long store_ptr;
234
235/* syscore_ops for Palm Zire 72 PM */
236
237static int palmz72_pm_suspend(void)
238{
239	/* setup the resume_info struct for the original bootloader */
240	palmz72_resume_info.resume_addr = (u32) cpu_resume;
241
242	/* Storing memory touched by ROM */
243	store_ptr = *PALMZ72_SAVE_DWORD;
244
245	/* Setting PSPR to a proper value */
246	PSPR = __pa_symbol(&palmz72_resume_info);
247
248	return 0;
249}
250
251static void palmz72_pm_resume(void)
252{
253	*PALMZ72_SAVE_DWORD = store_ptr;
254}
255
256static struct syscore_ops palmz72_pm_syscore_ops = {
257	.suspend = palmz72_pm_suspend,
258	.resume = palmz72_pm_resume,
259};
260
261static int __init palmz72_pm_init(void)
262{
263	if (machine_is_palmz72()) {
264		register_syscore_ops(&palmz72_pm_syscore_ops);
265		return 0;
266	}
267	return -ENODEV;
268}
269
270device_initcall(palmz72_pm_init);
271#endif
272
273static struct gpiod_lookup_table palmz72_mci_gpio_table = {
274	.dev_id = "pxa2xx-mci.0",
275	.table = {
276		GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMZ72_SD_DETECT_N,
277			    "cd", GPIO_ACTIVE_LOW),
278		GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMZ72_SD_RO,
279			    "wp", GPIO_ACTIVE_LOW),
280		GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMZ72_SD_POWER_N,
281			    "power", GPIO_ACTIVE_LOW),
282		{ },
283	},
284};
285
286/******************************************************************************
287 * Machine init
288 ******************************************************************************/
289static void __init palmz72_init(void)
290{
291	pxa2xx_mfp_config(ARRAY_AND_SIZE(palmz72_pin_config));
292	pxa_set_ffuart_info(NULL);
293	pxa_set_btuart_info(NULL);
294	pxa_set_stuart_info(NULL);
295
296	palm27x_mmc_init(&palmz72_mci_gpio_table);
297	palm27x_lcd_init(-1, &palm_320x320_lcd_mode);
298	palm27x_udc_init(GPIO_NR_PALMZ72_USB_DETECT_N,
299			GPIO_NR_PALMZ72_USB_PULLUP, 0);
300	palm27x_irda_init(GPIO_NR_PALMZ72_IR_DISABLE);
301	palm27x_ac97_init(PALMZ72_BAT_MIN_VOLTAGE, PALMZ72_BAT_MAX_VOLTAGE,
302			-1, 113);
303	palm27x_pwm_init(-1, -1);
304	palm27x_power_init(-1, -1);
305	palm27x_pmic_init();
306	palmz72_kpc_init();
307	palmz72_leds_init();
308}
309
310MACHINE_START(PALMZ72, "Palm Zire72")
311	.atag_offset	= 0x100,
312	.map_io		= pxa27x_map_io,
313	.nr_irqs	= PXA_NR_IRQS,
314	.init_irq	= pxa27x_init_irq,
315	.handle_irq	= pxa27x_handle_irq,
316	.init_time	= pxa_timer_init,
317	.init_machine	= palmz72_init,
318	.restart	= pxa_restart,
319MACHINE_END
320