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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#include <linux/usb/gpio_vbus.h>
27
28#include <asm/mach-types.h>
29#include <asm/mach/arch.h>
30#include <asm/mach/map.h>
31
32#include "pxa25x.h"
33#include <mach/audio.h>
34#include "palmte2.h"
35#include <linux/platform_data/mmc-pxamci.h>
36#include <linux/platform_data/video-pxafb.h>
37#include <linux/platform_data/irda-pxaficp.h>
38#include "udc.h"
39#include <linux/platform_data/asoc-palm27x.h>
40
41#include "generic.h"
42#include "devices.h"
43
44/******************************************************************************
45 * Pin configuration
46 ******************************************************************************/
47static unsigned long palmte2_pin_config[] __initdata = {
48 /* MMC */
49 GPIO6_MMC_CLK,
50 GPIO8_MMC_CS0,
51 GPIO10_GPIO, /* SD detect */
52 GPIO55_GPIO, /* SD power */
53 GPIO51_GPIO, /* SD r/o switch */
54
55 /* AC97 */
56 GPIO28_AC97_BITCLK,
57 GPIO29_AC97_SDATA_IN_0,
58 GPIO30_AC97_SDATA_OUT,
59 GPIO31_AC97_SYNC,
60
61 /* PWM */
62 GPIO16_PWM0_OUT,
63
64 /* USB */
65 GPIO15_GPIO, /* usb detect */
66 GPIO53_GPIO, /* usb power */
67
68 /* IrDA */
69 GPIO48_GPIO, /* ir disable */
70 GPIO46_FICP_RXD,
71 GPIO47_FICP_TXD,
72
73 /* LCD */
74 GPIOxx_LCD_TFT_16BPP,
75
76 /* GPIO KEYS */
77 GPIO5_GPIO, /* notes */
78 GPIO7_GPIO, /* tasks */
79 GPIO11_GPIO, /* calendar */
80 GPIO13_GPIO, /* contacts */
81 GPIO14_GPIO, /* center */
82 GPIO19_GPIO, /* left */
83 GPIO20_GPIO, /* right */
84 GPIO21_GPIO, /* down */
85 GPIO22_GPIO, /* up */
86
87 /* MISC */
88 GPIO1_RST, /* reset */
89 GPIO4_GPIO, /* Hotsync button */
90 GPIO9_GPIO, /* power detect */
91 GPIO15_GPIO, /* earphone detect */
92 GPIO37_GPIO, /* LCD power */
93 GPIO56_GPIO, /* Backlight power */
94};
95
96/******************************************************************************
97 * SD/MMC card controller
98 ******************************************************************************/
99static struct pxamci_platform_data palmte2_mci_platform_data = {
100 .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
101};
102
103static struct gpiod_lookup_table palmte2_mci_gpio_table = {
104 .dev_id = "pxa2xx-mci.0",
105 .table = {
106 GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTE2_SD_DETECT_N,
107 "cd", GPIO_ACTIVE_LOW),
108 GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTE2_SD_READONLY,
109 "wp", GPIO_ACTIVE_LOW),
110 GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTE2_SD_POWER,
111 "power", GPIO_ACTIVE_HIGH),
112 { },
113 },
114};
115
116#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
117/******************************************************************************
118 * GPIO keys
119 ******************************************************************************/
120static struct gpio_keys_button palmte2_pxa_buttons[] = {
121 {KEY_F1, GPIO_NR_PALMTE2_KEY_CONTACTS, 1, "Contacts" },
122 {KEY_F2, GPIO_NR_PALMTE2_KEY_CALENDAR, 1, "Calendar" },
123 {KEY_F3, GPIO_NR_PALMTE2_KEY_TASKS, 1, "Tasks" },
124 {KEY_F4, GPIO_NR_PALMTE2_KEY_NOTES, 1, "Notes" },
125 {KEY_ENTER, GPIO_NR_PALMTE2_KEY_CENTER, 1, "Center" },
126 {KEY_LEFT, GPIO_NR_PALMTE2_KEY_LEFT, 1, "Left" },
127 {KEY_RIGHT, GPIO_NR_PALMTE2_KEY_RIGHT, 1, "Right" },
128 {KEY_DOWN, GPIO_NR_PALMTE2_KEY_DOWN, 1, "Down" },
129 {KEY_UP, GPIO_NR_PALMTE2_KEY_UP, 1, "Up" },
130};
131
132static struct gpio_keys_platform_data palmte2_pxa_keys_data = {
133 .buttons = palmte2_pxa_buttons,
134 .nbuttons = ARRAY_SIZE(palmte2_pxa_buttons),
135};
136
137static struct platform_device palmte2_pxa_keys = {
138 .name = "gpio-keys",
139 .id = -1,
140 .dev = {
141 .platform_data = &palmte2_pxa_keys_data,
142 },
143};
144#endif
145
146/******************************************************************************
147 * Backlight
148 ******************************************************************************/
149static struct pwm_lookup palmte2_pwm_lookup[] = {
150 PWM_LOOKUP("pxa25x-pwm.0", 0, "pwm-backlight.0", NULL,
151 PALMTE2_PERIOD_NS, PWM_POLARITY_NORMAL),
152};
153
154static struct gpio palmte_bl_gpios[] = {
155 { GPIO_NR_PALMTE2_BL_POWER, GPIOF_INIT_LOW, "Backlight power" },
156 { GPIO_NR_PALMTE2_LCD_POWER, GPIOF_INIT_LOW, "LCD power" },
157};
158
159static int palmte2_backlight_init(struct device *dev)
160{
161 return gpio_request_array(ARRAY_AND_SIZE(palmte_bl_gpios));
162}
163
164static int palmte2_backlight_notify(struct device *dev, int brightness)
165{
166 gpio_set_value(GPIO_NR_PALMTE2_BL_POWER, brightness);
167 gpio_set_value(GPIO_NR_PALMTE2_LCD_POWER, brightness);
168 return brightness;
169}
170
171static void palmte2_backlight_exit(struct device *dev)
172{
173 gpio_free_array(ARRAY_AND_SIZE(palmte_bl_gpios));
174}
175
176static struct platform_pwm_backlight_data palmte2_backlight_data = {
177 .max_brightness = PALMTE2_MAX_INTENSITY,
178 .dft_brightness = PALMTE2_MAX_INTENSITY,
179 .enable_gpio = -1,
180 .init = palmte2_backlight_init,
181 .notify = palmte2_backlight_notify,
182 .exit = palmte2_backlight_exit,
183};
184
185static struct platform_device palmte2_backlight = {
186 .name = "pwm-backlight",
187 .dev = {
188 .parent = &pxa25x_device_pwm0.dev,
189 .platform_data = &palmte2_backlight_data,
190 },
191};
192
193/******************************************************************************
194 * IrDA
195 ******************************************************************************/
196static struct pxaficp_platform_data palmte2_ficp_platform_data = {
197 .gpio_pwdown = GPIO_NR_PALMTE2_IR_DISABLE,
198 .transceiver_cap = IR_SIRMODE | IR_OFF,
199};
200
201/******************************************************************************
202 * UDC
203 ******************************************************************************/
204static struct gpio_vbus_mach_info palmte2_udc_info = {
205 .gpio_vbus = GPIO_NR_PALMTE2_USB_DETECT_N,
206 .gpio_vbus_inverted = 1,
207 .gpio_pullup = GPIO_NR_PALMTE2_USB_PULLUP,
208};
209
210static struct platform_device palmte2_gpio_vbus = {
211 .name = "gpio-vbus",
212 .id = -1,
213 .dev = {
214 .platform_data = &palmte2_udc_info,
215 },
216};
217
218/******************************************************************************
219 * Power supply
220 ******************************************************************************/
221static 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
234err2:
235 gpio_free(GPIO_NR_PALMTE2_POWER_DETECT);
236err1:
237 return ret;
238}
239
240static int palmte2_is_ac_online(void)
241{
242 return gpio_get_value(GPIO_NR_PALMTE2_POWER_DETECT);
243}
244
245static void power_supply_exit(struct device *dev)
246{
247 gpio_free(GPIO_NR_PALMTE2_POWER_DETECT);
248}
249
250static char *palmte2_supplicants[] = {
251 "main-battery",
252};
253
254static 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
262static 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 ******************************************************************************/
273static struct wm97xx_batt_pdata palmte2_batt_pdata = {
274 .batt_aux = WM97XX_AUX_ID3,
275 .temp_aux = WM97XX_AUX_ID2,
276 .charge_gpio = -1,
277 .max_voltage = PALMTE2_BAT_MAX_VOLTAGE,
278 .min_voltage = PALMTE2_BAT_MIN_VOLTAGE,
279 .batt_mult = 1000,
280 .batt_div = 414,
281 .temp_mult = 1,
282 .temp_div = 1,
283 .batt_tech = POWER_SUPPLY_TECHNOLOGY_LIPO,
284 .batt_name = "main-batt",
285};
286
287static struct wm97xx_pdata palmte2_wm97xx_pdata = {
288 .batt_pdata = &palmte2_batt_pdata,
289};
290
291static pxa2xx_audio_ops_t palmte2_ac97_pdata = {
292 .codec_pdata = { &palmte2_wm97xx_pdata, },
293};
294
295static struct palm27x_asoc_info palmte2_asoc_pdata = {
296 .jack_gpio = GPIO_NR_PALMTE2_EARPHONE_DETECT,
297};
298
299static struct platform_device palmte2_asoc = {
300 .name = "palm27x-asoc",
301 .id = -1,
302 .dev = {
303 .platform_data = &palmte2_asoc_pdata,
304 },
305};
306
307/******************************************************************************
308 * Framebuffer
309 ******************************************************************************/
310static struct pxafb_mode_info palmte2_lcd_modes[] = {
311{
312 .pixclock = 77757,
313 .xres = 320,
314 .yres = 320,
315 .bpp = 16,
316
317 .left_margin = 28,
318 .right_margin = 7,
319 .upper_margin = 7,
320 .lower_margin = 5,
321
322 .hsync_len = 4,
323 .vsync_len = 1,
324},
325};
326
327static struct pxafb_mach_info palmte2_lcd_screen = {
328 .modes = palmte2_lcd_modes,
329 .num_modes = ARRAY_SIZE(palmte2_lcd_modes),
330 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
331};
332
333/******************************************************************************
334 * Machine init
335 ******************************************************************************/
336static struct platform_device *devices[] __initdata = {
337#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
338 &palmte2_pxa_keys,
339#endif
340 &palmte2_backlight,
341 &power_supply,
342 &palmte2_asoc,
343 &palmte2_gpio_vbus,
344};
345
346/* setup udc GPIOs initial state */
347static void __init palmte2_udc_init(void)
348{
349 if (!gpio_request(GPIO_NR_PALMTE2_USB_PULLUP, "UDC Vbus")) {
350 gpio_direction_output(GPIO_NR_PALMTE2_USB_PULLUP, 1);
351 gpio_free(GPIO_NR_PALMTE2_USB_PULLUP);
352 }
353}
354
355static void __init palmte2_init(void)
356{
357 pxa2xx_mfp_config(ARRAY_AND_SIZE(palmte2_pin_config));
358
359 pxa_set_ffuart_info(NULL);
360 pxa_set_btuart_info(NULL);
361 pxa_set_stuart_info(NULL);
362
363 pxa_set_fb_info(NULL, &palmte2_lcd_screen);
364 gpiod_add_lookup_table(&palmte2_mci_gpio_table);
365 pxa_set_mci_info(&palmte2_mci_platform_data);
366 palmte2_udc_init();
367 pxa_set_ac97_info(&palmte2_ac97_pdata);
368 pxa_set_ficp_info(&palmte2_ficp_platform_data);
369
370 pwm_add_table(palmte2_pwm_lookup, ARRAY_SIZE(palmte2_pwm_lookup));
371 platform_add_devices(devices, ARRAY_SIZE(devices));
372}
373
374MACHINE_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,
383MACHINE_END