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 <linux/platform_data/mmc-pxamci.h>
38 #include <linux/platform_data/video-pxafb.h>
39 #include <linux/platform_data/irda-pxaficp.h>
40 #include <mach/udc.h>
41 #include <linux/platform_data/asoc-palm27x.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 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
109 /******************************************************************************
110 * GPIO keys
111 ******************************************************************************/
112 static struct gpio_keys_button palmte2_pxa_buttons[] = {
113 {KEY_F1, GPIO_NR_PALMTE2_KEY_CONTACTS, 1, "Contacts" },
114 {KEY_F2, GPIO_NR_PALMTE2_KEY_CALENDAR, 1, "Calendar" },
115 {KEY_F3, GPIO_NR_PALMTE2_KEY_TASKS, 1, "Tasks" },
116 {KEY_F4, GPIO_NR_PALMTE2_KEY_NOTES, 1, "Notes" },
117 {KEY_ENTER, GPIO_NR_PALMTE2_KEY_CENTER, 1, "Center" },
118 {KEY_LEFT, GPIO_NR_PALMTE2_KEY_LEFT, 1, "Left" },
119 {KEY_RIGHT, GPIO_NR_PALMTE2_KEY_RIGHT, 1, "Right" },
120 {KEY_DOWN, GPIO_NR_PALMTE2_KEY_DOWN, 1, "Down" },
121 {KEY_UP, GPIO_NR_PALMTE2_KEY_UP, 1, "Up" },
122 };
123
124 static struct gpio_keys_platform_data palmte2_pxa_keys_data = {
125 .buttons = palmte2_pxa_buttons,
126 .nbuttons = ARRAY_SIZE(palmte2_pxa_buttons),
127 };
128
129 static struct platform_device palmte2_pxa_keys = {
130 .name = "gpio-keys",
131 .id = -1,
132 .dev = {
133 .platform_data = &palmte2_pxa_keys_data,
134 },
135 };
136 #endif
137
138 /******************************************************************************
139 * Backlight
140 ******************************************************************************/
141 static struct gpio palmte_bl_gpios[] = {
142 { GPIO_NR_PALMTE2_BL_POWER, GPIOF_INIT_LOW, "Backlight power" },
143 { GPIO_NR_PALMTE2_LCD_POWER, GPIOF_INIT_LOW, "LCD power" },
144 };
145
palmte2_backlight_init(struct device * dev)146 static int palmte2_backlight_init(struct device *dev)
147 {
148 return gpio_request_array(ARRAY_AND_SIZE(palmte_bl_gpios));
149 }
150
palmte2_backlight_notify(struct device * dev,int brightness)151 static int palmte2_backlight_notify(struct device *dev, int brightness)
152 {
153 gpio_set_value(GPIO_NR_PALMTE2_BL_POWER, brightness);
154 gpio_set_value(GPIO_NR_PALMTE2_LCD_POWER, brightness);
155 return brightness;
156 }
157
palmte2_backlight_exit(struct device * dev)158 static void palmte2_backlight_exit(struct device *dev)
159 {
160 gpio_free_array(ARRAY_AND_SIZE(palmte_bl_gpios));
161 }
162
163 static struct platform_pwm_backlight_data palmte2_backlight_data = {
164 .pwm_id = 0,
165 .max_brightness = PALMTE2_MAX_INTENSITY,
166 .dft_brightness = PALMTE2_MAX_INTENSITY,
167 .pwm_period_ns = PALMTE2_PERIOD_NS,
168 .enable_gpio = -1,
169 .init = palmte2_backlight_init,
170 .notify = palmte2_backlight_notify,
171 .exit = palmte2_backlight_exit,
172 };
173
174 static struct platform_device palmte2_backlight = {
175 .name = "pwm-backlight",
176 .dev = {
177 .parent = &pxa25x_device_pwm0.dev,
178 .platform_data = &palmte2_backlight_data,
179 },
180 };
181
182 /******************************************************************************
183 * IrDA
184 ******************************************************************************/
185 static struct pxaficp_platform_data palmte2_ficp_platform_data = {
186 .gpio_pwdown = GPIO_NR_PALMTE2_IR_DISABLE,
187 .transceiver_cap = IR_SIRMODE | IR_OFF,
188 };
189
190 /******************************************************************************
191 * UDC
192 ******************************************************************************/
193 static struct gpio_vbus_mach_info palmte2_udc_info = {
194 .gpio_vbus = GPIO_NR_PALMTE2_USB_DETECT_N,
195 .gpio_vbus_inverted = 1,
196 .gpio_pullup = GPIO_NR_PALMTE2_USB_PULLUP,
197 };
198
199 static struct platform_device palmte2_gpio_vbus = {
200 .name = "gpio-vbus",
201 .id = -1,
202 .dev = {
203 .platform_data = &palmte2_udc_info,
204 },
205 };
206
207 /******************************************************************************
208 * Power supply
209 ******************************************************************************/
power_supply_init(struct device * dev)210 static int power_supply_init(struct device *dev)
211 {
212 int ret;
213
214 ret = gpio_request(GPIO_NR_PALMTE2_POWER_DETECT, "CABLE_STATE_AC");
215 if (ret)
216 goto err1;
217 ret = gpio_direction_input(GPIO_NR_PALMTE2_POWER_DETECT);
218 if (ret)
219 goto err2;
220
221 return 0;
222
223 err2:
224 gpio_free(GPIO_NR_PALMTE2_POWER_DETECT);
225 err1:
226 return ret;
227 }
228
palmte2_is_ac_online(void)229 static int palmte2_is_ac_online(void)
230 {
231 return gpio_get_value(GPIO_NR_PALMTE2_POWER_DETECT);
232 }
233
power_supply_exit(struct device * dev)234 static void power_supply_exit(struct device *dev)
235 {
236 gpio_free(GPIO_NR_PALMTE2_POWER_DETECT);
237 }
238
239 static char *palmte2_supplicants[] = {
240 "main-battery",
241 };
242
243 static struct pda_power_pdata power_supply_info = {
244 .init = power_supply_init,
245 .is_ac_online = palmte2_is_ac_online,
246 .exit = power_supply_exit,
247 .supplied_to = palmte2_supplicants,
248 .num_supplicants = ARRAY_SIZE(palmte2_supplicants),
249 };
250
251 static struct platform_device power_supply = {
252 .name = "pda-power",
253 .id = -1,
254 .dev = {
255 .platform_data = &power_supply_info,
256 },
257 };
258
259 /******************************************************************************
260 * WM97xx audio, battery
261 ******************************************************************************/
262 static struct wm97xx_batt_pdata palmte2_batt_pdata = {
263 .batt_aux = WM97XX_AUX_ID3,
264 .temp_aux = WM97XX_AUX_ID2,
265 .charge_gpio = -1,
266 .max_voltage = PALMTE2_BAT_MAX_VOLTAGE,
267 .min_voltage = PALMTE2_BAT_MIN_VOLTAGE,
268 .batt_mult = 1000,
269 .batt_div = 414,
270 .temp_mult = 1,
271 .temp_div = 1,
272 .batt_tech = POWER_SUPPLY_TECHNOLOGY_LIPO,
273 .batt_name = "main-batt",
274 };
275
276 static struct wm97xx_pdata palmte2_wm97xx_pdata = {
277 .batt_pdata = &palmte2_batt_pdata,
278 };
279
280 static pxa2xx_audio_ops_t palmte2_ac97_pdata = {
281 .codec_pdata = { &palmte2_wm97xx_pdata, },
282 };
283
284 static struct palm27x_asoc_info palmte2_asoc_pdata = {
285 .jack_gpio = GPIO_NR_PALMTE2_EARPHONE_DETECT,
286 };
287
288 static struct platform_device palmte2_asoc = {
289 .name = "palm27x-asoc",
290 .id = -1,
291 .dev = {
292 .platform_data = &palmte2_asoc_pdata,
293 },
294 };
295
296 /******************************************************************************
297 * Framebuffer
298 ******************************************************************************/
299 static struct pxafb_mode_info palmte2_lcd_modes[] = {
300 {
301 .pixclock = 77757,
302 .xres = 320,
303 .yres = 320,
304 .bpp = 16,
305
306 .left_margin = 28,
307 .right_margin = 7,
308 .upper_margin = 7,
309 .lower_margin = 5,
310
311 .hsync_len = 4,
312 .vsync_len = 1,
313 },
314 };
315
316 static struct pxafb_mach_info palmte2_lcd_screen = {
317 .modes = palmte2_lcd_modes,
318 .num_modes = ARRAY_SIZE(palmte2_lcd_modes),
319 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
320 };
321
322 /******************************************************************************
323 * Machine init
324 ******************************************************************************/
325 static struct platform_device *devices[] __initdata = {
326 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
327 &palmte2_pxa_keys,
328 #endif
329 &palmte2_backlight,
330 &power_supply,
331 &palmte2_asoc,
332 &palmte2_gpio_vbus,
333 };
334
335 /* setup udc GPIOs initial state */
palmte2_udc_init(void)336 static void __init palmte2_udc_init(void)
337 {
338 if (!gpio_request(GPIO_NR_PALMTE2_USB_PULLUP, "UDC Vbus")) {
339 gpio_direction_output(GPIO_NR_PALMTE2_USB_PULLUP, 1);
340 gpio_free(GPIO_NR_PALMTE2_USB_PULLUP);
341 }
342 }
343
palmte2_init(void)344 static void __init palmte2_init(void)
345 {
346 pxa2xx_mfp_config(ARRAY_AND_SIZE(palmte2_pin_config));
347
348 pxa_set_ffuart_info(NULL);
349 pxa_set_btuart_info(NULL);
350 pxa_set_stuart_info(NULL);
351
352 pxa_set_fb_info(NULL, &palmte2_lcd_screen);
353 pxa_set_mci_info(&palmte2_mci_platform_data);
354 palmte2_udc_init();
355 pxa_set_ac97_info(&palmte2_ac97_pdata);
356 pxa_set_ficp_info(&palmte2_ficp_platform_data);
357
358 platform_add_devices(devices, ARRAY_SIZE(devices));
359 }
360
361 MACHINE_START(PALMTE2, "Palm Tungsten|E2")
362 .atag_offset = 0x100,
363 .map_io = pxa25x_map_io,
364 .nr_irqs = PXA_NR_IRQS,
365 .init_irq = pxa25x_init_irq,
366 .handle_irq = pxa25x_handle_irq,
367 .init_time = pxa_timer_init,
368 .init_machine = palmte2_init,
369 .restart = pxa_restart,
370 MACHINE_END
371