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 ******************************************************************************/
56 static 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)
137 static 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
153 static struct matrix_keymap_data almz72_matrix_keymap_data = {
154 .keymap = palmz72_matrix_keys,
155 .keymap_size = ARRAY_SIZE(palmz72_matrix_keys),
156 };
157
158 static 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
palmz72_kpc_init(void)166 static void __init palmz72_kpc_init(void)
167 {
168 pxa_set_keypad_info(&palmz72_keypad_platform_data);
169 }
170 #else
palmz72_kpc_init(void)171 static inline void palmz72_kpc_init(void) {}
172 #endif
173
174 /******************************************************************************
175 * LEDs
176 ******************************************************************************/
177 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
178 static 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
186 static struct gpio_led_platform_data gpio_led_info = {
187 .leds = gpio_leds,
188 .num_leds = ARRAY_SIZE(gpio_leds),
189 };
190
191 static struct platform_device palmz72_leds = {
192 .name = "leds-gpio",
193 .id = -1,
194 .dev = {
195 .platform_data = &gpio_led_info,
196 }
197 };
198
palmz72_leds_init(void)199 static void __init palmz72_leds_init(void)
200 {
201 platform_device_register(&palmz72_leds);
202 }
203 #else
palmz72_leds_init(void)204 static 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
221 static 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
233 static unsigned long store_ptr;
234
235 /* syscore_ops for Palm Zire 72 PM */
236
palmz72_pm_suspend(void)237 static 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
palmz72_pm_resume(void)251 static void palmz72_pm_resume(void)
252 {
253 *PALMZ72_SAVE_DWORD = store_ptr;
254 }
255
256 static struct syscore_ops palmz72_pm_syscore_ops = {
257 .suspend = palmz72_pm_suspend,
258 .resume = palmz72_pm_resume,
259 };
260
palmz72_pm_init(void)261 static 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
270 device_initcall(palmz72_pm_init);
271 #endif
272
273 static 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 ******************************************************************************/
palmz72_init(void)289 static 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
310 MACHINE_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,
319 MACHINE_END
320