1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Hardware definitions for Palm Tungsten|E2
4 *
5 * Author:
6 * Carlos Eduardo Medaglia Dyonisio <cadu@nerdfeliz.com>
7 *
8 * Rewrite for mainline:
9 * Marek Vasut <marek.vasut@gmail.com>
10 *
11 * (find more info at www.hackndev.com)
12 */
13
14 #include <linux/platform_device.h>
15 #include <linux/delay.h>
16 #include <linux/irq.h>
17 #include <linux/gpio_keys.h>
18 #include <linux/gpio/machine.h>
19 #include <linux/input.h>
20 #include <linux/pda_power.h>
21 #include <linux/pwm.h>
22 #include <linux/pwm_backlight.h>
23 #include <linux/gpio.h>
24 #include <linux/wm97xx.h>
25 #include <linux/power_supply.h>
26
27 #include <asm/mach-types.h>
28 #include <asm/mach/arch.h>
29 #include <asm/mach/map.h>
30
31 #include "pxa25x.h"
32 #include <mach/audio.h>
33 #include "palmte2.h"
34 #include <linux/platform_data/mmc-pxamci.h>
35 #include <linux/platform_data/video-pxafb.h>
36 #include <linux/platform_data/irda-pxaficp.h>
37 #include "udc.h"
38 #include <linux/platform_data/asoc-palm27x.h>
39
40 #include "generic.h"
41 #include "devices.h"
42
43 /******************************************************************************
44 * Pin configuration
45 ******************************************************************************/
46 static unsigned long palmte2_pin_config[] __initdata = {
47 /* MMC */
48 GPIO6_MMC_CLK,
49 GPIO8_MMC_CS0,
50 GPIO10_GPIO, /* SD detect */
51 GPIO55_GPIO, /* SD power */
52 GPIO51_GPIO, /* SD r/o switch */
53
54 /* AC97 */
55 GPIO28_AC97_BITCLK,
56 GPIO29_AC97_SDATA_IN_0,
57 GPIO30_AC97_SDATA_OUT,
58 GPIO31_AC97_SYNC,
59
60 /* PWM */
61 GPIO16_PWM0_OUT,
62
63 /* USB */
64 GPIO15_GPIO, /* usb detect */
65 GPIO53_GPIO, /* usb power */
66
67 /* IrDA */
68 GPIO48_GPIO, /* ir disable */
69 GPIO46_FICP_RXD,
70 GPIO47_FICP_TXD,
71
72 /* LCD */
73 GPIOxx_LCD_TFT_16BPP,
74
75 /* GPIO KEYS */
76 GPIO5_GPIO, /* notes */
77 GPIO7_GPIO, /* tasks */
78 GPIO11_GPIO, /* calendar */
79 GPIO13_GPIO, /* contacts */
80 GPIO14_GPIO, /* center */
81 GPIO19_GPIO, /* left */
82 GPIO20_GPIO, /* right */
83 GPIO21_GPIO, /* down */
84 GPIO22_GPIO, /* up */
85
86 /* MISC */
87 GPIO1_RST, /* reset */
88 GPIO4_GPIO, /* Hotsync button */
89 GPIO9_GPIO, /* power detect */
90 GPIO15_GPIO, /* earphone detect */
91 GPIO37_GPIO, /* LCD power */
92 GPIO56_GPIO, /* Backlight power */
93 };
94
95 /******************************************************************************
96 * SD/MMC card controller
97 ******************************************************************************/
98 static struct pxamci_platform_data palmte2_mci_platform_data = {
99 .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
100 };
101
102 static struct gpiod_lookup_table palmte2_mci_gpio_table = {
103 .dev_id = "pxa2xx-mci.0",
104 .table = {
105 GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTE2_SD_DETECT_N,
106 "cd", GPIO_ACTIVE_LOW),
107 GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTE2_SD_READONLY,
108 "wp", GPIO_ACTIVE_LOW),
109 GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTE2_SD_POWER,
110 "power", GPIO_ACTIVE_HIGH),
111 { },
112 },
113 };
114
115 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
116 /******************************************************************************
117 * GPIO keys
118 ******************************************************************************/
119 static struct gpio_keys_button palmte2_pxa_buttons[] = {
120 {KEY_F1, GPIO_NR_PALMTE2_KEY_CONTACTS, 1, "Contacts" },
121 {KEY_F2, GPIO_NR_PALMTE2_KEY_CALENDAR, 1, "Calendar" },
122 {KEY_F3, GPIO_NR_PALMTE2_KEY_TASKS, 1, "Tasks" },
123 {KEY_F4, GPIO_NR_PALMTE2_KEY_NOTES, 1, "Notes" },
124 {KEY_ENTER, GPIO_NR_PALMTE2_KEY_CENTER, 1, "Center" },
125 {KEY_LEFT, GPIO_NR_PALMTE2_KEY_LEFT, 1, "Left" },
126 {KEY_RIGHT, GPIO_NR_PALMTE2_KEY_RIGHT, 1, "Right" },
127 {KEY_DOWN, GPIO_NR_PALMTE2_KEY_DOWN, 1, "Down" },
128 {KEY_UP, GPIO_NR_PALMTE2_KEY_UP, 1, "Up" },
129 };
130
131 static struct gpio_keys_platform_data palmte2_pxa_keys_data = {
132 .buttons = palmte2_pxa_buttons,
133 .nbuttons = ARRAY_SIZE(palmte2_pxa_buttons),
134 };
135
136 static struct platform_device palmte2_pxa_keys = {
137 .name = "gpio-keys",
138 .id = -1,
139 .dev = {
140 .platform_data = &palmte2_pxa_keys_data,
141 },
142 };
143 #endif
144
145 /******************************************************************************
146 * Backlight
147 ******************************************************************************/
148 static struct pwm_lookup palmte2_pwm_lookup[] = {
149 PWM_LOOKUP("pxa25x-pwm.0", 0, "pwm-backlight.0", NULL,
150 PALMTE2_PERIOD_NS, PWM_POLARITY_NORMAL),
151 };
152
153 static struct gpio palmte_bl_gpios[] = {
154 { GPIO_NR_PALMTE2_BL_POWER, GPIOF_INIT_LOW, "Backlight power" },
155 { GPIO_NR_PALMTE2_LCD_POWER, GPIOF_INIT_LOW, "LCD power" },
156 };
157
palmte2_backlight_init(struct device * dev)158 static int palmte2_backlight_init(struct device *dev)
159 {
160 return gpio_request_array(ARRAY_AND_SIZE(palmte_bl_gpios));
161 }
162
palmte2_backlight_notify(struct device * dev,int brightness)163 static int palmte2_backlight_notify(struct device *dev, int brightness)
164 {
165 gpio_set_value(GPIO_NR_PALMTE2_BL_POWER, brightness);
166 gpio_set_value(GPIO_NR_PALMTE2_LCD_POWER, brightness);
167 return brightness;
168 }
169
palmte2_backlight_exit(struct device * dev)170 static void palmte2_backlight_exit(struct device *dev)
171 {
172 gpio_free_array(ARRAY_AND_SIZE(palmte_bl_gpios));
173 }
174
175 static struct platform_pwm_backlight_data palmte2_backlight_data = {
176 .max_brightness = PALMTE2_MAX_INTENSITY,
177 .dft_brightness = PALMTE2_MAX_INTENSITY,
178 .init = palmte2_backlight_init,
179 .notify = palmte2_backlight_notify,
180 .exit = palmte2_backlight_exit,
181 };
182
183 static struct platform_device palmte2_backlight = {
184 .name = "pwm-backlight",
185 .dev = {
186 .parent = &pxa25x_device_pwm0.dev,
187 .platform_data = &palmte2_backlight_data,
188 },
189 };
190
191 /******************************************************************************
192 * IrDA
193 ******************************************************************************/
194 static struct pxaficp_platform_data palmte2_ficp_platform_data = {
195 .gpio_pwdown = GPIO_NR_PALMTE2_IR_DISABLE,
196 .transceiver_cap = IR_SIRMODE | IR_OFF,
197 };
198
199 /******************************************************************************
200 * UDC
201 ******************************************************************************/
202 static struct gpiod_lookup_table palmte2_udc_gpiod_table = {
203 .dev_id = "gpio-vbus",
204 .table = {
205 GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTE2_USB_DETECT_N,
206 "vbus", GPIO_ACTIVE_LOW),
207 GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTE2_USB_PULLUP,
208 "pullup", GPIO_ACTIVE_HIGH),
209 { },
210 },
211 };
212
213 static struct platform_device palmte2_gpio_vbus = {
214 .name = "gpio-vbus",
215 .id = -1,
216 };
217
218 /******************************************************************************
219 * Power supply
220 ******************************************************************************/
power_supply_init(struct device * dev)221 static int power_supply_init(struct device *dev)
222 {
223 int ret;
224
225 ret = gpio_request(GPIO_NR_PALMTE2_POWER_DETECT, "CABLE_STATE_AC");
226 if (ret)
227 goto err1;
228 ret = gpio_direction_input(GPIO_NR_PALMTE2_POWER_DETECT);
229 if (ret)
230 goto err2;
231
232 return 0;
233
234 err2:
235 gpio_free(GPIO_NR_PALMTE2_POWER_DETECT);
236 err1:
237 return ret;
238 }
239
palmte2_is_ac_online(void)240 static int palmte2_is_ac_online(void)
241 {
242 return gpio_get_value(GPIO_NR_PALMTE2_POWER_DETECT);
243 }
244
power_supply_exit(struct device * dev)245 static void power_supply_exit(struct device *dev)
246 {
247 gpio_free(GPIO_NR_PALMTE2_POWER_DETECT);
248 }
249
250 static char *palmte2_supplicants[] = {
251 "main-battery",
252 };
253
254 static struct pda_power_pdata power_supply_info = {
255 .init = power_supply_init,
256 .is_ac_online = palmte2_is_ac_online,
257 .exit = power_supply_exit,
258 .supplied_to = palmte2_supplicants,
259 .num_supplicants = ARRAY_SIZE(palmte2_supplicants),
260 };
261
262 static struct platform_device power_supply = {
263 .name = "pda-power",
264 .id = -1,
265 .dev = {
266 .platform_data = &power_supply_info,
267 },
268 };
269
270 /******************************************************************************
271 * WM97xx audio, battery
272 ******************************************************************************/
273 static struct wm97xx_batt_pdata palmte2_batt_pdata = {
274 .batt_aux = WM97XX_AUX_ID3,
275 .temp_aux = WM97XX_AUX_ID2,
276 .max_voltage = PALMTE2_BAT_MAX_VOLTAGE,
277 .min_voltage = PALMTE2_BAT_MIN_VOLTAGE,
278 .batt_mult = 1000,
279 .batt_div = 414,
280 .temp_mult = 1,
281 .temp_div = 1,
282 .batt_tech = POWER_SUPPLY_TECHNOLOGY_LIPO,
283 .batt_name = "main-batt",
284 };
285
286 static struct wm97xx_pdata palmte2_wm97xx_pdata = {
287 .batt_pdata = &palmte2_batt_pdata,
288 };
289
290 static pxa2xx_audio_ops_t palmte2_ac97_pdata = {
291 .codec_pdata = { &palmte2_wm97xx_pdata, },
292 };
293
294 static struct palm27x_asoc_info palmte2_asoc_pdata = {
295 .jack_gpio = GPIO_NR_PALMTE2_EARPHONE_DETECT,
296 };
297
298 static struct platform_device palmte2_asoc = {
299 .name = "palm27x-asoc",
300 .id = -1,
301 .dev = {
302 .platform_data = &palmte2_asoc_pdata,
303 },
304 };
305
306 /******************************************************************************
307 * Framebuffer
308 ******************************************************************************/
309 static struct pxafb_mode_info palmte2_lcd_modes[] = {
310 {
311 .pixclock = 77757,
312 .xres = 320,
313 .yres = 320,
314 .bpp = 16,
315
316 .left_margin = 28,
317 .right_margin = 7,
318 .upper_margin = 7,
319 .lower_margin = 5,
320
321 .hsync_len = 4,
322 .vsync_len = 1,
323 },
324 };
325
326 static struct pxafb_mach_info palmte2_lcd_screen = {
327 .modes = palmte2_lcd_modes,
328 .num_modes = ARRAY_SIZE(palmte2_lcd_modes),
329 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
330 };
331
332 /******************************************************************************
333 * Machine init
334 ******************************************************************************/
335 static struct platform_device *devices[] __initdata = {
336 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
337 &palmte2_pxa_keys,
338 #endif
339 &palmte2_backlight,
340 &power_supply,
341 &palmte2_asoc,
342 &palmte2_gpio_vbus,
343 };
344
345 /* setup udc GPIOs initial state */
palmte2_udc_init(void)346 static void __init palmte2_udc_init(void)
347 {
348 if (!gpio_request(GPIO_NR_PALMTE2_USB_PULLUP, "UDC Vbus")) {
349 gpio_direction_output(GPIO_NR_PALMTE2_USB_PULLUP, 1);
350 gpio_free(GPIO_NR_PALMTE2_USB_PULLUP);
351 }
352 }
353
palmte2_init(void)354 static void __init palmte2_init(void)
355 {
356 pxa2xx_mfp_config(ARRAY_AND_SIZE(palmte2_pin_config));
357
358 pxa_set_ffuart_info(NULL);
359 pxa_set_btuart_info(NULL);
360 pxa_set_stuart_info(NULL);
361
362 pxa_set_fb_info(NULL, &palmte2_lcd_screen);
363 gpiod_add_lookup_table(&palmte2_mci_gpio_table);
364 pxa_set_mci_info(&palmte2_mci_platform_data);
365 palmte2_udc_init();
366 pxa_set_ac97_info(&palmte2_ac97_pdata);
367 pxa_set_ficp_info(&palmte2_ficp_platform_data);
368
369 pwm_add_table(palmte2_pwm_lookup, ARRAY_SIZE(palmte2_pwm_lookup));
370 gpiod_add_lookup_table(&palmte2_udc_gpiod_table);
371 platform_add_devices(devices, ARRAY_SIZE(devices));
372 }
373
374 MACHINE_START(PALMTE2, "Palm Tungsten|E2")
375 .atag_offset = 0x100,
376 .map_io = pxa25x_map_io,
377 .nr_irqs = PXA_NR_IRQS,
378 .init_irq = pxa25x_init_irq,
379 .handle_irq = pxa25x_handle_irq,
380 .init_time = pxa_timer_init,
381 .init_machine = palmte2_init,
382 .restart = pxa_restart,
383 MACHINE_END
384