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