1 /*
2 * Hardware definitions for Palm Zire72
3 *
4 * Authors:
5 * Vladimir "Farcaller" Pouzanov <farcaller@gmail.com>
6 * Sergey Lapin <slapin@ossfans.org>
7 * Alex Osborne <bobofdoom@gmail.com>
8 * Jan Herman <2hp@seznam.cz>
9 *
10 * Rewrite for mainline:
11 * Marek Vasut <marek.vasut@gmail.com>
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License version 2 as
15 * published by the Free Software Foundation.
16 *
17 * (find more info at www.hackndev.com)
18 *
19 */
20
21 #include <linux/platform_device.h>
22 #include <linux/syscore_ops.h>
23 #include <linux/delay.h>
24 #include <linux/irq.h>
25 #include <linux/gpio_keys.h>
26 #include <linux/input.h>
27 #include <linux/pda_power.h>
28 #include <linux/pwm_backlight.h>
29 #include <linux/gpio.h>
30 #include <linux/wm97xx.h>
31 #include <linux/power_supply.h>
32 #include <linux/usb/gpio_vbus.h>
33 #include <linux/platform_data/i2c-gpio.h>
34 #include <linux/gpio/machine.h>
35
36 #include <asm/mach-types.h>
37 #include <asm/suspend.h>
38 #include <asm/mach/arch.h>
39 #include <asm/mach/map.h>
40
41 #include "pxa27x.h"
42 #include <mach/audio.h>
43 #include "palmz72.h"
44 #include <linux/platform_data/mmc-pxamci.h>
45 #include <linux/platform_data/video-pxafb.h>
46 #include <linux/platform_data/irda-pxaficp.h>
47 #include <linux/platform_data/keypad-pxa27x.h>
48 #include "udc.h"
49 #include <linux/platform_data/asoc-palm27x.h>
50 #include "palm27x.h"
51
52 #include "pm.h"
53 #include <linux/platform_data/media/camera-pxa.h>
54
55 #include <media/soc_camera.h>
56
57 #include "generic.h"
58 #include "devices.h"
59
60 /******************************************************************************
61 * Pin configuration
62 ******************************************************************************/
63 static unsigned long palmz72_pin_config[] __initdata = {
64 /* MMC */
65 GPIO32_MMC_CLK,
66 GPIO92_MMC_DAT_0,
67 GPIO109_MMC_DAT_1,
68 GPIO110_MMC_DAT_2,
69 GPIO111_MMC_DAT_3,
70 GPIO112_MMC_CMD,
71 GPIO14_GPIO, /* SD detect */
72 GPIO115_GPIO, /* SD RO */
73 GPIO98_GPIO, /* SD power */
74
75 /* AC97 */
76 GPIO28_AC97_BITCLK,
77 GPIO29_AC97_SDATA_IN_0,
78 GPIO30_AC97_SDATA_OUT,
79 GPIO31_AC97_SYNC,
80 GPIO89_AC97_SYSCLK,
81 GPIO113_AC97_nRESET,
82
83 /* IrDA */
84 GPIO49_GPIO, /* ir disable */
85 GPIO46_FICP_RXD,
86 GPIO47_FICP_TXD,
87
88 /* PWM */
89 GPIO16_PWM0_OUT,
90
91 /* USB */
92 GPIO15_GPIO, /* usb detect */
93 GPIO95_GPIO, /* usb pullup */
94
95 /* Matrix keypad */
96 GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
97 GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
98 GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
99 GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
100 GPIO103_KP_MKOUT_0,
101 GPIO104_KP_MKOUT_1,
102 GPIO105_KP_MKOUT_2,
103
104 /* LCD */
105 GPIOxx_LCD_TFT_16BPP,
106
107 GPIO20_GPIO, /* bl power */
108 GPIO21_GPIO, /* LCD border switch */
109 GPIO22_GPIO, /* LCD border color */
110 GPIO96_GPIO, /* lcd power */
111
112 /* PXA Camera */
113 GPIO81_CIF_DD_0,
114 GPIO48_CIF_DD_5,
115 GPIO50_CIF_DD_3,
116 GPIO51_CIF_DD_2,
117 GPIO52_CIF_DD_4,
118 GPIO53_CIF_MCLK,
119 GPIO54_CIF_PCLK,
120 GPIO55_CIF_DD_1,
121 GPIO84_CIF_FV,
122 GPIO85_CIF_LV,
123 GPIO93_CIF_DD_6,
124 GPIO108_CIF_DD_7,
125
126 GPIO56_GPIO, /* OV9640 Powerdown */
127 GPIO57_GPIO, /* OV9640 Reset */
128 GPIO91_GPIO, /* OV9640 Power */
129
130 /* I2C */
131 GPIO117_GPIO, /* I2C_SCL */
132 GPIO118_GPIO, /* I2C_SDA */
133
134 /* Misc. */
135 GPIO0_GPIO | WAKEUP_ON_LEVEL_HIGH, /* power detect */
136 GPIO88_GPIO, /* green led */
137 GPIO27_GPIO, /* WM9712 IRQ */
138 };
139
140 /******************************************************************************
141 * GPIO keyboard
142 ******************************************************************************/
143 #if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
144 static const unsigned int palmz72_matrix_keys[] = {
145 KEY(0, 0, KEY_POWER),
146 KEY(0, 1, KEY_F1),
147 KEY(0, 2, KEY_ENTER),
148
149 KEY(1, 0, KEY_F2),
150 KEY(1, 1, KEY_F3),
151 KEY(1, 2, KEY_F4),
152
153 KEY(2, 0, KEY_UP),
154 KEY(2, 2, KEY_DOWN),
155
156 KEY(3, 0, KEY_RIGHT),
157 KEY(3, 2, KEY_LEFT),
158 };
159
160 static struct matrix_keymap_data almz72_matrix_keymap_data = {
161 .keymap = palmz72_matrix_keys,
162 .keymap_size = ARRAY_SIZE(palmz72_matrix_keys),
163 };
164
165 static struct pxa27x_keypad_platform_data palmz72_keypad_platform_data = {
166 .matrix_key_rows = 4,
167 .matrix_key_cols = 3,
168 .matrix_keymap_data = &almz72_matrix_keymap_data,
169
170 .debounce_interval = 30,
171 };
172
palmz72_kpc_init(void)173 static void __init palmz72_kpc_init(void)
174 {
175 pxa_set_keypad_info(&palmz72_keypad_platform_data);
176 }
177 #else
palmz72_kpc_init(void)178 static inline void palmz72_kpc_init(void) {}
179 #endif
180
181 /******************************************************************************
182 * LEDs
183 ******************************************************************************/
184 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
185 static struct gpio_led gpio_leds[] = {
186 {
187 .name = "palmz72:green:led",
188 .default_trigger = "none",
189 .gpio = GPIO_NR_PALMZ72_LED_GREEN,
190 },
191 };
192
193 static struct gpio_led_platform_data gpio_led_info = {
194 .leds = gpio_leds,
195 .num_leds = ARRAY_SIZE(gpio_leds),
196 };
197
198 static struct platform_device palmz72_leds = {
199 .name = "leds-gpio",
200 .id = -1,
201 .dev = {
202 .platform_data = &gpio_led_info,
203 }
204 };
205
palmz72_leds_init(void)206 static void __init palmz72_leds_init(void)
207 {
208 platform_device_register(&palmz72_leds);
209 }
210 #else
palmz72_leds_init(void)211 static inline void palmz72_leds_init(void) {}
212 #endif
213
214 #ifdef CONFIG_PM
215
216 /* We have some black magic here
217 * PalmOS ROM on recover expects special struct physical address
218 * to be transferred via PSPR. Using this struct PalmOS restores
219 * its state after sleep. As for Linux, we need to setup it the
220 * same way. More than that, PalmOS ROM changes some values in memory.
221 * For now only one location is found, which needs special treatment.
222 * Thanks to Alex Osborne, Andrzej Zaborowski, and lots of other people
223 * for reading backtraces for me :)
224 */
225
226 #define PALMZ72_SAVE_DWORD ((unsigned long *)0xc0000050)
227
228 static struct palmz72_resume_info palmz72_resume_info = {
229 .magic0 = 0xb4e6,
230 .magic1 = 1,
231
232 /* reset state, MMU off etc */
233 .arm_control = 0,
234 .aux_control = 0,
235 .ttb = 0,
236 .domain_access = 0,
237 .process_id = 0,
238 };
239
240 static unsigned long store_ptr;
241
242 /* syscore_ops for Palm Zire 72 PM */
243
palmz72_pm_suspend(void)244 static int palmz72_pm_suspend(void)
245 {
246 /* setup the resume_info struct for the original bootloader */
247 palmz72_resume_info.resume_addr = (u32) cpu_resume;
248
249 /* Storing memory touched by ROM */
250 store_ptr = *PALMZ72_SAVE_DWORD;
251
252 /* Setting PSPR to a proper value */
253 PSPR = __pa_symbol(&palmz72_resume_info);
254
255 return 0;
256 }
257
palmz72_pm_resume(void)258 static void palmz72_pm_resume(void)
259 {
260 *PALMZ72_SAVE_DWORD = store_ptr;
261 }
262
263 static struct syscore_ops palmz72_pm_syscore_ops = {
264 .suspend = palmz72_pm_suspend,
265 .resume = palmz72_pm_resume,
266 };
267
palmz72_pm_init(void)268 static int __init palmz72_pm_init(void)
269 {
270 if (machine_is_palmz72()) {
271 register_syscore_ops(&palmz72_pm_syscore_ops);
272 return 0;
273 }
274 return -ENODEV;
275 }
276
277 device_initcall(palmz72_pm_init);
278 #endif
279
280 /******************************************************************************
281 * SoC Camera
282 ******************************************************************************/
283 #if defined(CONFIG_SOC_CAMERA_OV9640) || \
284 defined(CONFIG_SOC_CAMERA_OV9640_MODULE)
285 static struct pxacamera_platform_data palmz72_pxacamera_platform_data = {
286 .flags = PXA_CAMERA_MASTER | PXA_CAMERA_DATAWIDTH_8 |
287 PXA_CAMERA_PCLK_EN | PXA_CAMERA_MCLK_EN,
288 .mclk_10khz = 2600,
289 };
290
291 /* Board I2C devices. */
292 static struct i2c_board_info palmz72_i2c_device[] = {
293 {
294 I2C_BOARD_INFO("ov9640", 0x30),
295 }
296 };
297
palmz72_camera_power(struct device * dev,int power)298 static int palmz72_camera_power(struct device *dev, int power)
299 {
300 gpio_set_value(GPIO_NR_PALMZ72_CAM_PWDN, !power);
301 mdelay(50);
302 return 0;
303 }
304
palmz72_camera_reset(struct device * dev)305 static int palmz72_camera_reset(struct device *dev)
306 {
307 gpio_set_value(GPIO_NR_PALMZ72_CAM_RESET, 1);
308 mdelay(50);
309 gpio_set_value(GPIO_NR_PALMZ72_CAM_RESET, 0);
310 mdelay(50);
311 return 0;
312 }
313
314 static struct soc_camera_link palmz72_iclink = {
315 .bus_id = 0, /* Match id in pxa27x_device_camera in device.c */
316 .board_info = &palmz72_i2c_device[0],
317 .i2c_adapter_id = 0,
318 .module_name = "ov96xx",
319 .power = &palmz72_camera_power,
320 .reset = &palmz72_camera_reset,
321 .flags = SOCAM_DATAWIDTH_8,
322 };
323
324 static struct gpiod_lookup_table palmz72_i2c_gpiod_table = {
325 .dev_id = "i2c-gpio.0",
326 .table = {
327 GPIO_LOOKUP_IDX("gpio-pxa", 118, NULL, 0,
328 GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
329 GPIO_LOOKUP_IDX("gpio-pxa", 117, NULL, 1,
330 GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
331 },
332 };
333
334 static struct i2c_gpio_platform_data palmz72_i2c_bus_data = {
335 .udelay = 10,
336 .timeout = 100,
337 };
338
339 static struct platform_device palmz72_i2c_bus_device = {
340 .name = "i2c-gpio",
341 .id = 0, /* we use this as a replacement for i2c-pxa */
342 .dev = {
343 .platform_data = &palmz72_i2c_bus_data,
344 }
345 };
346
347 static struct platform_device palmz72_camera = {
348 .name = "soc-camera-pdrv",
349 .id = -1,
350 .dev = {
351 .platform_data = &palmz72_iclink,
352 },
353 };
354
355 /* Here we request the camera GPIOs and configure them. We power up the camera
356 * module, deassert the reset pin, but put it into powerdown (low to no power
357 * consumption) mode. This allows us to later bring the module up fast. */
358 static struct gpio palmz72_camera_gpios[] = {
359 { GPIO_NR_PALMZ72_CAM_POWER, GPIOF_INIT_HIGH,"Camera DVDD" },
360 { GPIO_NR_PALMZ72_CAM_RESET, GPIOF_INIT_LOW, "Camera RESET" },
361 { GPIO_NR_PALMZ72_CAM_PWDN, GPIOF_INIT_LOW, "Camera PWDN" },
362 };
363
palmz72_cam_gpio_init(void)364 static inline void __init palmz72_cam_gpio_init(void)
365 {
366 int ret;
367
368 ret = gpio_request_array(ARRAY_AND_SIZE(palmz72_camera_gpios));
369 if (!ret)
370 gpio_free_array(ARRAY_AND_SIZE(palmz72_camera_gpios));
371 else
372 printk(KERN_ERR "Camera GPIO init failed!\n");
373
374 return;
375 }
376
palmz72_camera_init(void)377 static void __init palmz72_camera_init(void)
378 {
379 palmz72_cam_gpio_init();
380 pxa_set_camera_info(&palmz72_pxacamera_platform_data);
381 gpiod_add_lookup_table(&palmz72_i2c_gpiod_table);
382 platform_device_register(&palmz72_i2c_bus_device);
383 platform_device_register(&palmz72_camera);
384 }
385 #else
palmz72_camera_init(void)386 static inline void palmz72_camera_init(void) {}
387 #endif
388
389 /******************************************************************************
390 * Machine init
391 ******************************************************************************/
palmz72_init(void)392 static void __init palmz72_init(void)
393 {
394 pxa2xx_mfp_config(ARRAY_AND_SIZE(palmz72_pin_config));
395 pxa_set_ffuart_info(NULL);
396 pxa_set_btuart_info(NULL);
397 pxa_set_stuart_info(NULL);
398
399 palm27x_mmc_init(GPIO_NR_PALMZ72_SD_DETECT_N, GPIO_NR_PALMZ72_SD_RO,
400 GPIO_NR_PALMZ72_SD_POWER_N, 1);
401 palm27x_lcd_init(-1, &palm_320x320_lcd_mode);
402 palm27x_udc_init(GPIO_NR_PALMZ72_USB_DETECT_N,
403 GPIO_NR_PALMZ72_USB_PULLUP, 0);
404 palm27x_irda_init(GPIO_NR_PALMZ72_IR_DISABLE);
405 palm27x_ac97_init(PALMZ72_BAT_MIN_VOLTAGE, PALMZ72_BAT_MAX_VOLTAGE,
406 -1, 113);
407 palm27x_pwm_init(-1, -1);
408 palm27x_power_init(-1, -1);
409 palm27x_pmic_init();
410 palmz72_kpc_init();
411 palmz72_leds_init();
412 palmz72_camera_init();
413 }
414
415 MACHINE_START(PALMZ72, "Palm Zire72")
416 .atag_offset = 0x100,
417 .map_io = pxa27x_map_io,
418 .nr_irqs = PXA_NR_IRQS,
419 .init_irq = pxa27x_init_irq,
420 .handle_irq = pxa27x_handle_irq,
421 .init_time = pxa_timer_init,
422 .init_machine = palmz72_init,
423 .restart = pxa_restart,
424 MACHINE_END
425
