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/sysdev.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/mach/arch.h>
37 #include <asm/mach/map.h>
38
39 #include <mach/pxa27x.h>
40 #include <mach/audio.h>
41 #include <mach/palmz72.h>
42 #include <mach/mmc.h>
43 #include <mach/pxafb.h>
44 #include <mach/irda.h>
45 #include <plat/pxa27x_keypad.h>
46 #include <mach/udc.h>
47 #include <mach/palmasoc.h>
48 #include <mach/palm27x.h>
49
50 #include <mach/pm.h>
51 #include <mach/camera.h>
52
53 #include <media/soc_camera.h>
54
55 #include "generic.h"
56 #include "devices.h"
57
58 /******************************************************************************
59 * Pin configuration
60 ******************************************************************************/
61 static unsigned long palmz72_pin_config[] __initdata = {
62 /* MMC */
63 GPIO32_MMC_CLK,
64 GPIO92_MMC_DAT_0,
65 GPIO109_MMC_DAT_1,
66 GPIO110_MMC_DAT_2,
67 GPIO111_MMC_DAT_3,
68 GPIO112_MMC_CMD,
69 GPIO14_GPIO, /* SD detect */
70 GPIO115_GPIO, /* SD RO */
71 GPIO98_GPIO, /* SD power */
72
73 /* AC97 */
74 GPIO28_AC97_BITCLK,
75 GPIO29_AC97_SDATA_IN_0,
76 GPIO30_AC97_SDATA_OUT,
77 GPIO31_AC97_SYNC,
78 GPIO89_AC97_SYSCLK,
79 GPIO113_AC97_nRESET,
80
81 /* IrDA */
82 GPIO49_GPIO, /* ir disable */
83 GPIO46_FICP_RXD,
84 GPIO47_FICP_TXD,
85
86 /* PWM */
87 GPIO16_PWM0_OUT,
88
89 /* USB */
90 GPIO15_GPIO, /* usb detect */
91 GPIO95_GPIO, /* usb pullup */
92
93 /* Matrix keypad */
94 GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
95 GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
96 GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
97 GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
98 GPIO103_KP_MKOUT_0,
99 GPIO104_KP_MKOUT_1,
100 GPIO105_KP_MKOUT_2,
101
102 /* LCD */
103 GPIOxx_LCD_TFT_16BPP,
104
105 GPIO20_GPIO, /* bl power */
106 GPIO21_GPIO, /* LCD border switch */
107 GPIO22_GPIO, /* LCD border color */
108 GPIO96_GPIO, /* lcd power */
109
110 /* PXA Camera */
111 GPIO81_CIF_DD_0,
112 GPIO48_CIF_DD_5,
113 GPIO50_CIF_DD_3,
114 GPIO51_CIF_DD_2,
115 GPIO52_CIF_DD_4,
116 GPIO53_CIF_MCLK,
117 GPIO54_CIF_PCLK,
118 GPIO55_CIF_DD_1,
119 GPIO84_CIF_FV,
120 GPIO85_CIF_LV,
121 GPIO93_CIF_DD_6,
122 GPIO108_CIF_DD_7,
123
124 GPIO56_GPIO, /* OV9640 Powerdown */
125 GPIO57_GPIO, /* OV9640 Reset */
126 GPIO91_GPIO, /* OV9640 Power */
127
128 /* I2C */
129 GPIO117_GPIO, /* I2C_SCL */
130 GPIO118_GPIO, /* I2C_SDA */
131
132 /* Misc. */
133 GPIO0_GPIO | WAKEUP_ON_LEVEL_HIGH, /* power detect */
134 GPIO88_GPIO, /* green led */
135 GPIO27_GPIO, /* WM9712 IRQ */
136 };
137
138 /******************************************************************************
139 * GPIO keyboard
140 ******************************************************************************/
141 #if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
142 static unsigned int palmz72_matrix_keys[] = {
143 KEY(0, 0, KEY_POWER),
144 KEY(0, 1, KEY_F1),
145 KEY(0, 2, KEY_ENTER),
146
147 KEY(1, 0, KEY_F2),
148 KEY(1, 1, KEY_F3),
149 KEY(1, 2, KEY_F4),
150
151 KEY(2, 0, KEY_UP),
152 KEY(2, 2, KEY_DOWN),
153
154 KEY(3, 0, KEY_RIGHT),
155 KEY(3, 2, KEY_LEFT),
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_key_map = palmz72_matrix_keys,
162 .matrix_key_map_size = ARRAY_SIZE(palmz72_matrix_keys),
163
164 .debounce_interval = 30,
165 };
166
palmz72_kpc_init(void)167 static void __init palmz72_kpc_init(void)
168 {
169 pxa_set_keypad_info(&palmz72_keypad_platform_data);
170 }
171 #else
palmz72_kpc_init(void)172 static inline void palmz72_kpc_init(void) {}
173 #endif
174
175 /******************************************************************************
176 * LEDs
177 ******************************************************************************/
178 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
179 static struct gpio_led gpio_leds[] = {
180 {
181 .name = "palmz72:green:led",
182 .default_trigger = "none",
183 .gpio = GPIO_NR_PALMZ72_LED_GREEN,
184 },
185 };
186
187 static struct gpio_led_platform_data gpio_led_info = {
188 .leds = gpio_leds,
189 .num_leds = ARRAY_SIZE(gpio_leds),
190 };
191
192 static struct platform_device palmz72_leds = {
193 .name = "leds-gpio",
194 .id = -1,
195 .dev = {
196 .platform_data = &gpio_led_info,
197 }
198 };
199
palmz72_leds_init(void)200 static void __init palmz72_leds_init(void)
201 {
202 platform_device_register(&palmz72_leds);
203 }
204 #else
palmz72_leds_init(void)205 static inline void palmz72_leds_init(void) {}
206 #endif
207
208 #ifdef CONFIG_PM
209
210 /* We have some black magic here
211 * PalmOS ROM on recover expects special struct physical address
212 * to be transferred via PSPR. Using this struct PalmOS restores
213 * its state after sleep. As for Linux, we need to setup it the
214 * same way. More than that, PalmOS ROM changes some values in memory.
215 * For now only one location is found, which needs special treatment.
216 * Thanks to Alex Osborne, Andrzej Zaborowski, and lots of other people
217 * for reading backtraces for me :)
218 */
219
220 #define PALMZ72_SAVE_DWORD ((unsigned long *)0xc0000050)
221
222 static struct palmz72_resume_info palmz72_resume_info = {
223 .magic0 = 0xb4e6,
224 .magic1 = 1,
225
226 /* reset state, MMU off etc */
227 .arm_control = 0,
228 .aux_control = 0,
229 .ttb = 0,
230 .domain_access = 0,
231 .process_id = 0,
232 };
233
234 static unsigned long store_ptr;
235
236 /* sys_device for Palm Zire 72 PM */
237
palmz72_pm_suspend(struct sys_device * dev,pm_message_t msg)238 static int palmz72_pm_suspend(struct sys_device *dev, pm_message_t msg)
239 {
240 /* setup the resume_info struct for the original bootloader */
241 palmz72_resume_info.resume_addr = (u32) cpu_resume;
242
243 /* Storing memory touched by ROM */
244 store_ptr = *PALMZ72_SAVE_DWORD;
245
246 /* Setting PSPR to a proper value */
247 PSPR = virt_to_phys(&palmz72_resume_info);
248
249 return 0;
250 }
251
palmz72_pm_resume(struct sys_device * dev)252 static int palmz72_pm_resume(struct sys_device *dev)
253 {
254 *PALMZ72_SAVE_DWORD = store_ptr;
255 return 0;
256 }
257
258 static struct sysdev_class palmz72_pm_sysclass = {
259 .name = "palmz72_pm",
260 .suspend = palmz72_pm_suspend,
261 .resume = palmz72_pm_resume,
262 };
263
264 static struct sys_device palmz72_pm_device = {
265 .cls = &palmz72_pm_sysclass,
266 };
267
palmz72_pm_init(void)268 static int __init palmz72_pm_init(void)
269 {
270 int ret = -ENODEV;
271 if (machine_is_palmz72()) {
272 ret = sysdev_class_register(&palmz72_pm_sysclass);
273 if (ret == 0)
274 ret = sysdev_register(&palmz72_pm_device);
275 }
276 return ret;
277 }
278
279 device_initcall(palmz72_pm_init);
280 #endif
281
282 /******************************************************************************
283 * SoC Camera
284 ******************************************************************************/
285 #if defined(CONFIG_SOC_CAMERA_OV9640) || \
286 defined(CONFIG_SOC_CAMERA_OV9640_MODULE)
287 static struct pxacamera_platform_data palmz72_pxacamera_platform_data = {
288 .flags = PXA_CAMERA_MASTER | PXA_CAMERA_DATAWIDTH_8 |
289 PXA_CAMERA_PCLK_EN | PXA_CAMERA_MCLK_EN,
290 .mclk_10khz = 2600,
291 };
292
293 /* Board I2C devices. */
294 static struct i2c_board_info palmz72_i2c_device[] = {
295 {
296 I2C_BOARD_INFO("ov9640", 0x30),
297 }
298 };
299
palmz72_camera_power(struct device * dev,int power)300 static int palmz72_camera_power(struct device *dev, int power)
301 {
302 gpio_set_value(GPIO_NR_PALMZ72_CAM_PWDN, !power);
303 mdelay(50);
304 return 0;
305 }
306
palmz72_camera_reset(struct device * dev)307 static int palmz72_camera_reset(struct device *dev)
308 {
309 gpio_set_value(GPIO_NR_PALMZ72_CAM_RESET, 1);
310 mdelay(50);
311 gpio_set_value(GPIO_NR_PALMZ72_CAM_RESET, 0);
312 mdelay(50);
313 return 0;
314 }
315
316 static struct soc_camera_link palmz72_iclink = {
317 .bus_id = 0, /* Match id in pxa27x_device_camera in device.c */
318 .board_info = &palmz72_i2c_device[0],
319 .i2c_adapter_id = 0,
320 .module_name = "ov96xx",
321 .power = &palmz72_camera_power,
322 .reset = &palmz72_camera_reset,
323 .flags = SOCAM_DATAWIDTH_8,
324 };
325
326 static struct i2c_gpio_platform_data palmz72_i2c_bus_data = {
327 .sda_pin = 118,
328 .scl_pin = 117,
329 .udelay = 10,
330 .timeout = 100,
331 };
332
333 static struct platform_device palmz72_i2c_bus_device = {
334 .name = "i2c-gpio",
335 .id = 0, /* we use this as a replacement for i2c-pxa */
336 .dev = {
337 .platform_data = &palmz72_i2c_bus_data,
338 }
339 };
340
341 static struct platform_device palmz72_camera = {
342 .name = "soc-camera-pdrv",
343 .id = -1,
344 .dev = {
345 .platform_data = &palmz72_iclink,
346 },
347 };
348
349 /* Here we request the camera GPIOs and configure them. We power up the camera
350 * module, deassert the reset pin, but put it into powerdown (low to no power
351 * consumption) mode. This allows us to later bring the module up fast. */
352 static struct gpio palmz72_camera_gpios[] = {
353 { GPIO_NR_PALMZ72_CAM_POWER, GPIOF_INIT_HIGH,"Camera DVDD" },
354 { GPIO_NR_PALMZ72_CAM_RESET, GPIOF_INIT_LOW, "Camera RESET" },
355 { GPIO_NR_PALMZ72_CAM_PWDN, GPIOF_INIT_LOW, "Camera PWDN" },
356 };
357
palmz72_cam_gpio_init(void)358 static inline void __init palmz72_cam_gpio_init(void)
359 {
360 int ret;
361
362 ret = gpio_request_array(ARRAY_AND_SIZE(palmz72_camera_gpios));
363 if (!ret)
364 gpio_free_array(ARRAY_AND_SIZE(palmz72_camera_gpios));
365 else
366 printk(KERN_ERR "Camera GPIO init failed!\n");
367
368 return;
369 }
370
palmz72_camera_init(void)371 static void __init palmz72_camera_init(void)
372 {
373 palmz72_cam_gpio_init();
374 pxa_set_camera_info(&palmz72_pxacamera_platform_data);
375 platform_device_register(&palmz72_i2c_bus_device);
376 platform_device_register(&palmz72_camera);
377 }
378 #else
palmz72_camera_init(void)379 static inline void palmz72_camera_init(void) {}
380 #endif
381
382 /******************************************************************************
383 * Machine init
384 ******************************************************************************/
palmz72_init(void)385 static void __init palmz72_init(void)
386 {
387 pxa2xx_mfp_config(ARRAY_AND_SIZE(palmz72_pin_config));
388 pxa_set_ffuart_info(NULL);
389 pxa_set_btuart_info(NULL);
390 pxa_set_stuart_info(NULL);
391
392 palm27x_mmc_init(GPIO_NR_PALMZ72_SD_DETECT_N, GPIO_NR_PALMZ72_SD_RO,
393 GPIO_NR_PALMZ72_SD_POWER_N, 1);
394 palm27x_lcd_init(-1, &palm_320x320_lcd_mode);
395 palm27x_udc_init(GPIO_NR_PALMZ72_USB_DETECT_N,
396 GPIO_NR_PALMZ72_USB_PULLUP, 0);
397 palm27x_irda_init(GPIO_NR_PALMZ72_IR_DISABLE);
398 palm27x_ac97_init(PALMZ72_BAT_MIN_VOLTAGE, PALMZ72_BAT_MAX_VOLTAGE,
399 -1, 113);
400 palm27x_pwm_init(-1, -1);
401 palm27x_power_init(-1, -1);
402 palm27x_pmic_init();
403 palmz72_kpc_init();
404 palmz72_leds_init();
405 palmz72_camera_init();
406 }
407
408 MACHINE_START(PALMZ72, "Palm Zire72")
409 .boot_params = 0xa0000100,
410 .map_io = pxa27x_map_io,
411 .init_irq = pxa27x_init_irq,
412 .timer = &pxa_timer,
413 .init_machine = palmz72_init
414 MACHINE_END
415