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palmte2.c
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1 /*
2  * Hardware definitions for Palm Tungsten|E2
3  *
4  * Author:
5  * Carlos Eduardo Medaglia Dyonisio <[email protected]>
6  *
7  * Rewrite for mainline:
8  * Marek Vasut <[email protected]>
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 
146 static int palmte2_backlight_init(struct device *dev)
147 {
148  return gpio_request_array(ARRAY_AND_SIZE(palmte_bl_gpios));
149 }
150 
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 
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  .init = palmte2_backlight_init,
169  .notify = palmte2_backlight_notify,
170  .exit = palmte2_backlight_exit,
171 };
172 
173 static struct platform_device palmte2_backlight = {
174  .name = "pwm-backlight",
175  .dev = {
176  .parent = &pxa25x_device_pwm0.dev,
177  .platform_data = &palmte2_backlight_data,
178  },
179 };
180 
181 /******************************************************************************
182  * IrDA
183  ******************************************************************************/
184 static struct pxaficp_platform_data palmte2_ficp_platform_data = {
185  .gpio_pwdown = GPIO_NR_PALMTE2_IR_DISABLE,
186  .transceiver_cap = IR_SIRMODE | IR_OFF,
187 };
188 
189 /******************************************************************************
190  * UDC
191  ******************************************************************************/
192 static struct gpio_vbus_mach_info palmte2_udc_info = {
193  .gpio_vbus = GPIO_NR_PALMTE2_USB_DETECT_N,
194  .gpio_vbus_inverted = 1,
195  .gpio_pullup = GPIO_NR_PALMTE2_USB_PULLUP,
196 };
197 
198 static struct platform_device palmte2_gpio_vbus = {
199  .name = "gpio-vbus",
200  .id = -1,
201  .dev = {
202  .platform_data = &palmte2_udc_info,
203  },
204 };
205 
206 /******************************************************************************
207  * Power supply
208  ******************************************************************************/
209 static int power_supply_init(struct device *dev)
210 {
211  int ret;
212 
213  ret = gpio_request(GPIO_NR_PALMTE2_POWER_DETECT, "CABLE_STATE_AC");
214  if (ret)
215  goto err1;
216  ret = gpio_direction_input(GPIO_NR_PALMTE2_POWER_DETECT);
217  if (ret)
218  goto err2;
219 
220  return 0;
221 
222 err2:
223  gpio_free(GPIO_NR_PALMTE2_POWER_DETECT);
224 err1:
225  return ret;
226 }
227 
228 static int palmte2_is_ac_online(void)
229 {
230  return gpio_get_value(GPIO_NR_PALMTE2_POWER_DETECT);
231 }
232 
233 static void power_supply_exit(struct device *dev)
234 {
235  gpio_free(GPIO_NR_PALMTE2_POWER_DETECT);
236 }
237 
238 static char *palmte2_supplicants[] = {
239  "main-battery",
240 };
241 
242 static struct pda_power_pdata power_supply_info = {
243  .init = power_supply_init,
244  .is_ac_online = palmte2_is_ac_online,
245  .exit = power_supply_exit,
246  .supplied_to = palmte2_supplicants,
247  .num_supplicants = ARRAY_SIZE(palmte2_supplicants),
248 };
249 
250 static struct platform_device power_supply = {
251  .name = "pda-power",
252  .id = -1,
253  .dev = {
254  .platform_data = &power_supply_info,
255  },
256 };
257 
258 /******************************************************************************
259  * WM97xx audio, battery
260  ******************************************************************************/
261 static struct wm97xx_batt_pdata palmte2_batt_pdata = {
262  .batt_aux = WM97XX_AUX_ID3,
263  .temp_aux = WM97XX_AUX_ID2,
264  .charge_gpio = -1,
265  .max_voltage = PALMTE2_BAT_MAX_VOLTAGE,
266  .min_voltage = PALMTE2_BAT_MIN_VOLTAGE,
267  .batt_mult = 1000,
268  .batt_div = 414,
269  .temp_mult = 1,
270  .temp_div = 1,
271  .batt_tech = POWER_SUPPLY_TECHNOLOGY_LIPO,
272  .batt_name = "main-batt",
273 };
274 
275 static struct wm97xx_pdata palmte2_wm97xx_pdata = {
276  .batt_pdata = &palmte2_batt_pdata,
277 };
278 
279 static pxa2xx_audio_ops_t palmte2_ac97_pdata = {
280  .codec_pdata = { &palmte2_wm97xx_pdata, },
281 };
282 
283 static struct palm27x_asoc_info palmte2_asoc_pdata = {
284  .jack_gpio = GPIO_NR_PALMTE2_EARPHONE_DETECT,
285 };
286 
287 static struct platform_device palmte2_asoc = {
288  .name = "palm27x-asoc",
289  .id = -1,
290  .dev = {
291  .platform_data = &palmte2_asoc_pdata,
292  },
293 };
294 
295 /******************************************************************************
296  * Framebuffer
297  ******************************************************************************/
298 static struct pxafb_mode_info palmte2_lcd_modes[] = {
299 {
300  .pixclock = 77757,
301  .xres = 320,
302  .yres = 320,
303  .bpp = 16,
304 
305  .left_margin = 28,
306  .right_margin = 7,
307  .upper_margin = 7,
308  .lower_margin = 5,
309 
310  .hsync_len = 4,
311  .vsync_len = 1,
312 },
313 };
314 
315 static struct pxafb_mach_info palmte2_lcd_screen = {
316  .modes = palmte2_lcd_modes,
317  .num_modes = ARRAY_SIZE(palmte2_lcd_modes),
318  .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
319 };
320 
321 /******************************************************************************
322  * Machine init
323  ******************************************************************************/
324 static struct platform_device *devices[] __initdata = {
325 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
326  &palmte2_pxa_keys,
327 #endif
328  &palmte2_backlight,
329  &power_supply,
330  &palmte2_asoc,
331  &palmte2_gpio_vbus,
332 };
333 
334 /* setup udc GPIOs initial state */
335 static void __init palmte2_udc_init(void)
336 {
337  if (!gpio_request(GPIO_NR_PALMTE2_USB_PULLUP, "UDC Vbus")) {
338  gpio_direction_output(GPIO_NR_PALMTE2_USB_PULLUP, 1);
339  gpio_free(GPIO_NR_PALMTE2_USB_PULLUP);
340  }
341 }
342 
343 static void __init palmte2_init(void)
344 {
345  pxa2xx_mfp_config(ARRAY_AND_SIZE(palmte2_pin_config));
346 
347  pxa_set_ffuart_info(NULL);
348  pxa_set_btuart_info(NULL);
349  pxa_set_stuart_info(NULL);
350 
351  pxa_set_fb_info(NULL, &palmte2_lcd_screen);
352  pxa_set_mci_info(&palmte2_mci_platform_data);
353  palmte2_udc_init();
354  pxa_set_ac97_info(&palmte2_ac97_pdata);
355  pxa_set_ficp_info(&palmte2_ficp_platform_data);
356 
357  platform_add_devices(devices, ARRAY_SIZE(devices));
358 }
359 
360 MACHINE_START(PALMTE2, "Palm Tungsten|E2")
361  .atag_offset = 0x100,
362  .map_io = pxa25x_map_io,
363  .nr_irqs = PXA_NR_IRQS,
364  .init_irq = pxa25x_init_irq,
365  .handle_irq = pxa25x_handle_irq,
366  .timer = &pxa_timer,
367  .init_machine = palmte2_init,
368  .restart = pxa_restart,
369 MACHINE_END
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