1 /*
2 * Hardware definitions for Palm Tungsten|E2
3 *
4 * Author:
5 * Carlos Eduardo Medaglia Dyonisio <cadu@nerdfeliz.com>
6 *
7 * Rewrite for mainline:
8 * Marek Vasut <marek.vasut@gmail.com>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
13 *
14 * (find more info at www.hackndev.com)
15 *
16 */
17
18 #include <linux/platform_device.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/usb/gpio_vbus.h>
29
30 #include <asm/mach-types.h>
31 #include <asm/mach/arch.h>
32 #include <asm/mach/map.h>
33
34 #include <mach/pxa25x.h>
35 #include <mach/audio.h>
36 #include <mach/palmte2.h>
37 #include <mach/mmc.h>
38 #include <mach/pxafb.h>
39 #include <mach/irda.h>
40 #include <mach/udc.h>
41 #include <mach/palmasoc.h>
42
43 #include "generic.h"
44 #include "devices.h"
45
46 /******************************************************************************
47 * Pin configuration
48 ******************************************************************************/
49 static unsigned long palmte2_pin_config[] __initdata = {
50 /* MMC */
51 GPIO6_MMC_CLK,
52 GPIO8_MMC_CS0,
53 GPIO10_GPIO, /* SD detect */
54 GPIO55_GPIO, /* SD power */
55 GPIO51_GPIO, /* SD r/o switch */
56
57 /* AC97 */
58 GPIO28_AC97_BITCLK,
59 GPIO29_AC97_SDATA_IN_0,
60 GPIO30_AC97_SDATA_OUT,
61 GPIO31_AC97_SYNC,
62
63 /* PWM */
64 GPIO16_PWM0_OUT,
65
66 /* USB */
67 GPIO15_GPIO, /* usb detect */
68 GPIO53_GPIO, /* usb power */
69
70 /* IrDA */
71 GPIO48_GPIO, /* ir disable */
72 GPIO46_FICP_RXD,
73 GPIO47_FICP_TXD,
74
75 /* LCD */
76 GPIOxx_LCD_TFT_16BPP,
77
78 /* GPIO KEYS */
79 GPIO5_GPIO, /* notes */
80 GPIO7_GPIO, /* tasks */
81 GPIO11_GPIO, /* calendar */
82 GPIO13_GPIO, /* contacts */
83 GPIO14_GPIO, /* center */
84 GPIO19_GPIO, /* left */
85 GPIO20_GPIO, /* right */
86 GPIO21_GPIO, /* down */
87 GPIO22_GPIO, /* up */
88
89 /* MISC */
90 GPIO1_RST, /* reset */
91 GPIO4_GPIO, /* Hotsync button */
92 GPIO9_GPIO, /* power detect */
93 GPIO15_GPIO, /* earphone detect */
94 GPIO37_GPIO, /* LCD power */
95 GPIO56_GPIO, /* Backlight power */
96 };
97
98 /******************************************************************************
99 * SD/MMC card controller
100 ******************************************************************************/
101 static struct pxamci_platform_data palmte2_mci_platform_data = {
102 .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
103 .gpio_card_detect = GPIO_NR_PALMTE2_SD_DETECT_N,
104 .gpio_card_ro = GPIO_NR_PALMTE2_SD_READONLY,
105 .gpio_power = GPIO_NR_PALMTE2_SD_POWER,
106 };
107
108 /******************************************************************************
109 * GPIO keys
110 ******************************************************************************/
111 static struct gpio_keys_button palmte2_pxa_buttons[] = {
112 {KEY_F1, GPIO_NR_PALMTE2_KEY_CONTACTS, 1, "Contacts" },
113 {KEY_F2, GPIO_NR_PALMTE2_KEY_CALENDAR, 1, "Calendar" },
114 {KEY_F3, GPIO_NR_PALMTE2_KEY_TASKS, 1, "Tasks" },
115 {KEY_F4, GPIO_NR_PALMTE2_KEY_NOTES, 1, "Notes" },
116 {KEY_ENTER, GPIO_NR_PALMTE2_KEY_CENTER, 1, "Center" },
117 {KEY_LEFT, GPIO_NR_PALMTE2_KEY_LEFT, 1, "Left" },
118 {KEY_RIGHT, GPIO_NR_PALMTE2_KEY_RIGHT, 1, "Right" },
119 {KEY_DOWN, GPIO_NR_PALMTE2_KEY_DOWN, 1, "Down" },
120 {KEY_UP, GPIO_NR_PALMTE2_KEY_UP, 1, "Up" },
121 };
122
123 static struct gpio_keys_platform_data palmte2_pxa_keys_data = {
124 .buttons = palmte2_pxa_buttons,
125 .nbuttons = ARRAY_SIZE(palmte2_pxa_buttons),
126 };
127
128 static struct platform_device palmte2_pxa_keys = {
129 .name = "gpio-keys",
130 .id = -1,
131 .dev = {
132 .platform_data = &palmte2_pxa_keys_data,
133 },
134 };
135
136 /******************************************************************************
137 * Backlight
138 ******************************************************************************/
139 static struct gpio palmte_bl_gpios[] = {
140 { GPIO_NR_PALMTE2_BL_POWER, GPIOF_INIT_LOW, "Backlight power" },
141 { GPIO_NR_PALMTE2_LCD_POWER, GPIOF_INIT_LOW, "LCD power" },
142 };
143
palmte2_backlight_init(struct device * dev)144 static int palmte2_backlight_init(struct device *dev)
145 {
146 return gpio_request_array(ARRAY_AND_SIZE(palmte_bl_gpios));
147 }
148
palmte2_backlight_notify(struct device * dev,int brightness)149 static int palmte2_backlight_notify(struct device *dev, int brightness)
150 {
151 gpio_set_value(GPIO_NR_PALMTE2_BL_POWER, brightness);
152 gpio_set_value(GPIO_NR_PALMTE2_LCD_POWER, brightness);
153 return brightness;
154 }
155
palmte2_backlight_exit(struct device * dev)156 static void palmte2_backlight_exit(struct device *dev)
157 {
158 gpio_free_array(ARRAY_AND_SIZE(palmte_bl_gpios));
159 }
160
161 static struct platform_pwm_backlight_data palmte2_backlight_data = {
162 .pwm_id = 0,
163 .max_brightness = PALMTE2_MAX_INTENSITY,
164 .dft_brightness = PALMTE2_MAX_INTENSITY,
165 .pwm_period_ns = PALMTE2_PERIOD_NS,
166 .init = palmte2_backlight_init,
167 .notify = palmte2_backlight_notify,
168 .exit = palmte2_backlight_exit,
169 };
170
171 static struct platform_device palmte2_backlight = {
172 .name = "pwm-backlight",
173 .dev = {
174 .parent = &pxa25x_device_pwm0.dev,
175 .platform_data = &palmte2_backlight_data,
176 },
177 };
178
179 /******************************************************************************
180 * IrDA
181 ******************************************************************************/
182 static struct pxaficp_platform_data palmte2_ficp_platform_data = {
183 .gpio_pwdown = GPIO_NR_PALMTE2_IR_DISABLE,
184 .transceiver_cap = IR_SIRMODE | IR_OFF,
185 };
186
187 /******************************************************************************
188 * UDC
189 ******************************************************************************/
190 static struct gpio_vbus_mach_info palmte2_udc_info = {
191 .gpio_vbus = GPIO_NR_PALMTE2_USB_DETECT_N,
192 .gpio_vbus_inverted = 1,
193 .gpio_pullup = GPIO_NR_PALMTE2_USB_PULLUP,
194 };
195
196 static struct platform_device palmte2_gpio_vbus = {
197 .name = "gpio-vbus",
198 .id = -1,
199 .dev = {
200 .platform_data = &palmte2_udc_info,
201 },
202 };
203
204 /******************************************************************************
205 * Power supply
206 ******************************************************************************/
power_supply_init(struct device * dev)207 static int power_supply_init(struct device *dev)
208 {
209 int ret;
210
211 ret = gpio_request(GPIO_NR_PALMTE2_POWER_DETECT, "CABLE_STATE_AC");
212 if (ret)
213 goto err1;
214 ret = gpio_direction_input(GPIO_NR_PALMTE2_POWER_DETECT);
215 if (ret)
216 goto err2;
217
218 return 0;
219
220 err2:
221 gpio_free(GPIO_NR_PALMTE2_POWER_DETECT);
222 err1:
223 return ret;
224 }
225
palmte2_is_ac_online(void)226 static int palmte2_is_ac_online(void)
227 {
228 return gpio_get_value(GPIO_NR_PALMTE2_POWER_DETECT);
229 }
230
power_supply_exit(struct device * dev)231 static void power_supply_exit(struct device *dev)
232 {
233 gpio_free(GPIO_NR_PALMTE2_POWER_DETECT);
234 }
235
236 static char *palmte2_supplicants[] = {
237 "main-battery",
238 };
239
240 static struct pda_power_pdata power_supply_info = {
241 .init = power_supply_init,
242 .is_ac_online = palmte2_is_ac_online,
243 .exit = power_supply_exit,
244 .supplied_to = palmte2_supplicants,
245 .num_supplicants = ARRAY_SIZE(palmte2_supplicants),
246 };
247
248 static struct platform_device power_supply = {
249 .name = "pda-power",
250 .id = -1,
251 .dev = {
252 .platform_data = &power_supply_info,
253 },
254 };
255
256 /******************************************************************************
257 * WM97xx audio, battery
258 ******************************************************************************/
259 static struct wm97xx_batt_pdata palmte2_batt_pdata = {
260 .batt_aux = WM97XX_AUX_ID3,
261 .temp_aux = WM97XX_AUX_ID2,
262 .charge_gpio = -1,
263 .max_voltage = PALMTE2_BAT_MAX_VOLTAGE,
264 .min_voltage = PALMTE2_BAT_MIN_VOLTAGE,
265 .batt_mult = 1000,
266 .batt_div = 414,
267 .temp_mult = 1,
268 .temp_div = 1,
269 .batt_tech = POWER_SUPPLY_TECHNOLOGY_LIPO,
270 .batt_name = "main-batt",
271 };
272
273 static struct wm97xx_pdata palmte2_wm97xx_pdata = {
274 .batt_pdata = &palmte2_batt_pdata,
275 };
276
277 static pxa2xx_audio_ops_t palmte2_ac97_pdata = {
278 .codec_pdata = { &palmte2_wm97xx_pdata, },
279 };
280
281 static struct palm27x_asoc_info palmte2_asoc_pdata = {
282 .jack_gpio = GPIO_NR_PALMTE2_EARPHONE_DETECT,
283 };
284
285 static struct platform_device palmte2_asoc = {
286 .name = "palm27x-asoc",
287 .id = -1,
288 .dev = {
289 .platform_data = &palmte2_asoc_pdata,
290 },
291 };
292
293 /******************************************************************************
294 * Framebuffer
295 ******************************************************************************/
296 static struct pxafb_mode_info palmte2_lcd_modes[] = {
297 {
298 .pixclock = 77757,
299 .xres = 320,
300 .yres = 320,
301 .bpp = 16,
302
303 .left_margin = 28,
304 .right_margin = 7,
305 .upper_margin = 7,
306 .lower_margin = 5,
307
308 .hsync_len = 4,
309 .vsync_len = 1,
310 },
311 };
312
313 static struct pxafb_mach_info palmte2_lcd_screen = {
314 .modes = palmte2_lcd_modes,
315 .num_modes = ARRAY_SIZE(palmte2_lcd_modes),
316 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
317 };
318
319 /******************************************************************************
320 * Machine init
321 ******************************************************************************/
322 static struct platform_device *devices[] __initdata = {
323 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
324 &palmte2_pxa_keys,
325 #endif
326 &palmte2_backlight,
327 &power_supply,
328 &palmte2_asoc,
329 &palmte2_gpio_vbus,
330 };
331
332 /* setup udc GPIOs initial state */
palmte2_udc_init(void)333 static void __init palmte2_udc_init(void)
334 {
335 if (!gpio_request(GPIO_NR_PALMTE2_USB_PULLUP, "UDC Vbus")) {
336 gpio_direction_output(GPIO_NR_PALMTE2_USB_PULLUP, 1);
337 gpio_free(GPIO_NR_PALMTE2_USB_PULLUP);
338 }
339 }
340
palmte2_init(void)341 static void __init palmte2_init(void)
342 {
343 pxa2xx_mfp_config(ARRAY_AND_SIZE(palmte2_pin_config));
344
345 pxa_set_ffuart_info(NULL);
346 pxa_set_btuart_info(NULL);
347 pxa_set_stuart_info(NULL);
348
349 pxa_set_fb_info(NULL, &palmte2_lcd_screen);
350 pxa_set_mci_info(&palmte2_mci_platform_data);
351 palmte2_udc_init();
352 pxa_set_ac97_info(&palmte2_ac97_pdata);
353 pxa_set_ficp_info(&palmte2_ficp_platform_data);
354
355 platform_add_devices(devices, ARRAY_SIZE(devices));
356 }
357
358 MACHINE_START(PALMTE2, "Palm Tungsten|E2")
359 .atag_offset = 0x100,
360 .map_io = pxa25x_map_io,
361 .init_irq = pxa25x_init_irq,
362 .handle_irq = pxa25x_handle_irq,
363 .timer = &pxa_timer,
364 .init_machine = palmte2_init,
365 .restart = pxa_restart,
366 MACHINE_END
367