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b5e4ad57 MV |
1 | /* |
2 | * Hardware definitions for PalmTX | |
3 | * | |
4 | * Author: Marek Vasut <marek.vasut@gmail.com> | |
5 | * | |
6 | * Based on work of: | |
7 | * Alex Osborne <ato@meshy.org> | |
8 | * Cristiano P. <cristianop@users.sourceforge.net> | |
9 | * Jan Herman <2hp@seznam.cz> | |
10 | * Michal Hrusecky | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or modify | |
13 | * it under the terms of the GNU General Public License version 2 as | |
14 | * published by the Free Software Foundation. | |
15 | * | |
16 | * (find more info at www.hackndev.com) | |
17 | * | |
18 | */ | |
19 | ||
20 | #include <linux/platform_device.h> | |
21 | #include <linux/delay.h> | |
22 | #include <linux/irq.h> | |
23 | #include <linux/gpio_keys.h> | |
24 | #include <linux/input.h> | |
d4b19c42 | 25 | #include <linux/pda_power.h> |
b5e4ad57 MV |
26 | #include <linux/pwm_backlight.h> |
27 | #include <linux/gpio.h> | |
28 | ||
29 | #include <asm/mach-types.h> | |
30 | #include <asm/mach/arch.h> | |
31 | #include <asm/mach/map.h> | |
32 | ||
a09e64fb RK |
33 | #include <mach/audio.h> |
34 | #include <mach/palmtx.h> | |
35 | #include <mach/mmc.h> | |
36 | #include <mach/pxafb.h> | |
37 | #include <mach/pxa-regs.h> | |
38 | #include <mach/mfp-pxa27x.h> | |
39 | #include <mach/irda.h> | |
40 | #include <mach/pxa27x_keypad.h> | |
41 | #include <mach/udc.h> | |
b5e4ad57 MV |
42 | |
43 | #include "generic.h" | |
44 | #include "devices.h" | |
45 | ||
46 | /****************************************************************************** | |
47 | * Pin configuration | |
48 | ******************************************************************************/ | |
49 | static unsigned long palmtx_pin_config[] __initdata = { | |
50 | /* MMC */ | |
51 | GPIO32_MMC_CLK, | |
52 | GPIO92_MMC_DAT_0, | |
53 | GPIO109_MMC_DAT_1, | |
54 | GPIO110_MMC_DAT_2, | |
55 | GPIO111_MMC_DAT_3, | |
56 | GPIO112_MMC_CMD, | |
57 | ||
58 | /* AC97 */ | |
59 | GPIO28_AC97_BITCLK, | |
60 | GPIO29_AC97_SDATA_IN_0, | |
61 | GPIO30_AC97_SDATA_OUT, | |
62 | GPIO31_AC97_SYNC, | |
63 | ||
64 | /* IrDA */ | |
65 | GPIO46_FICP_RXD, | |
66 | GPIO47_FICP_TXD, | |
67 | ||
68 | /* PWM */ | |
69 | GPIO16_PWM0_OUT, | |
70 | ||
71 | /* USB */ | |
72 | GPIO13_GPIO, | |
35978408 MV |
73 | |
74 | /* PCMCIA */ | |
75 | GPIO48_nPOE, | |
76 | GPIO49_nPWE, | |
77 | GPIO50_nPIOR, | |
78 | GPIO51_nPIOW, | |
79 | GPIO85_nPCE_1, | |
80 | GPIO54_nPCE_2, | |
81 | GPIO79_PSKTSEL, | |
82 | GPIO55_nPREG, | |
83 | GPIO56_nPWAIT, | |
84 | GPIO57_nIOIS16, | |
b5e4ad57 MV |
85 | }; |
86 | ||
87 | /****************************************************************************** | |
88 | * SD/MMC card controller | |
89 | ******************************************************************************/ | |
90 | static int palmtx_mci_init(struct device *dev, irq_handler_t palmtx_detect_int, | |
91 | void *data) | |
92 | { | |
93 | int err = 0; | |
94 | ||
95 | /* Setup an interrupt for detecting card insert/remove events */ | |
96 | err = request_irq(IRQ_GPIO_PALMTX_SD_DETECT_N, palmtx_detect_int, | |
97 | IRQF_DISABLED | IRQF_SAMPLE_RANDOM | | |
98 | IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, | |
99 | "SD/MMC card detect", data); | |
100 | if (err) { | |
101 | printk(KERN_ERR "%s: cannot request SD/MMC card detect IRQ\n", | |
102 | __func__); | |
103 | return err; | |
104 | } | |
105 | ||
106 | err = gpio_request(GPIO_NR_PALMTX_SD_POWER, "SD_POWER"); | |
107 | if (err) | |
108 | goto pwr_err; | |
109 | ||
110 | err = gpio_request(GPIO_NR_PALMTX_SD_READONLY, "SD_READONLY"); | |
111 | if (err) | |
112 | goto ro_err; | |
113 | ||
114 | printk(KERN_DEBUG "%s: irq registered\n", __func__); | |
115 | ||
116 | return 0; | |
117 | ||
118 | ro_err: | |
119 | gpio_free(GPIO_NR_PALMTX_SD_POWER); | |
120 | pwr_err: | |
121 | free_irq(IRQ_GPIO_PALMTX_SD_DETECT_N, data); | |
122 | return err; | |
123 | } | |
124 | ||
125 | static void palmtx_mci_exit(struct device *dev, void *data) | |
126 | { | |
127 | gpio_free(GPIO_NR_PALMTX_SD_READONLY); | |
128 | gpio_free(GPIO_NR_PALMTX_SD_POWER); | |
129 | free_irq(IRQ_GPIO_PALMTX_SD_DETECT_N, data); | |
130 | } | |
131 | ||
132 | static void palmtx_mci_power(struct device *dev, unsigned int vdd) | |
133 | { | |
134 | struct pxamci_platform_data *p_d = dev->platform_data; | |
135 | gpio_set_value(GPIO_NR_PALMTX_SD_POWER, p_d->ocr_mask & (1 << vdd)); | |
136 | } | |
137 | ||
138 | static int palmtx_mci_get_ro(struct device *dev) | |
139 | { | |
140 | return gpio_get_value(GPIO_NR_PALMTX_SD_READONLY); | |
141 | } | |
142 | ||
143 | static struct pxamci_platform_data palmtx_mci_platform_data = { | |
144 | .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, | |
145 | .setpower = palmtx_mci_power, | |
146 | .get_ro = palmtx_mci_get_ro, | |
147 | .init = palmtx_mci_init, | |
148 | .exit = palmtx_mci_exit, | |
149 | }; | |
150 | ||
151 | /****************************************************************************** | |
152 | * GPIO keyboard | |
153 | ******************************************************************************/ | |
154 | static unsigned int palmtx_matrix_keys[] = { | |
155 | KEY(0, 0, KEY_POWER), | |
156 | KEY(0, 1, KEY_F1), | |
157 | KEY(0, 2, KEY_ENTER), | |
158 | ||
159 | KEY(1, 0, KEY_F2), | |
160 | KEY(1, 1, KEY_F3), | |
161 | KEY(1, 2, KEY_F4), | |
162 | ||
163 | KEY(2, 0, KEY_UP), | |
164 | KEY(2, 2, KEY_DOWN), | |
165 | ||
166 | KEY(3, 0, KEY_RIGHT), | |
167 | KEY(3, 2, KEY_LEFT), | |
168 | ||
169 | }; | |
170 | ||
171 | static struct pxa27x_keypad_platform_data palmtx_keypad_platform_data = { | |
172 | .matrix_key_rows = 4, | |
173 | .matrix_key_cols = 3, | |
174 | .matrix_key_map = palmtx_matrix_keys, | |
175 | .matrix_key_map_size = ARRAY_SIZE(palmtx_matrix_keys), | |
176 | ||
177 | .debounce_interval = 30, | |
178 | }; | |
179 | ||
180 | /****************************************************************************** | |
181 | * GPIO keys | |
182 | ******************************************************************************/ | |
183 | static struct gpio_keys_button palmtx_pxa_buttons[] = { | |
184 | {KEY_F8, GPIO_NR_PALMTX_HOTSYNC_BUTTON_N, 1, "HotSync Button" }, | |
185 | }; | |
186 | ||
187 | static struct gpio_keys_platform_data palmtx_pxa_keys_data = { | |
188 | .buttons = palmtx_pxa_buttons, | |
189 | .nbuttons = ARRAY_SIZE(palmtx_pxa_buttons), | |
190 | }; | |
191 | ||
192 | static struct platform_device palmtx_pxa_keys = { | |
193 | .name = "gpio-keys", | |
194 | .id = -1, | |
195 | .dev = { | |
196 | .platform_data = &palmtx_pxa_keys_data, | |
197 | }, | |
198 | }; | |
199 | ||
200 | /****************************************************************************** | |
201 | * Backlight | |
202 | ******************************************************************************/ | |
203 | static int palmtx_backlight_init(struct device *dev) | |
204 | { | |
205 | int ret; | |
206 | ||
207 | ret = gpio_request(GPIO_NR_PALMTX_BL_POWER, "BL POWER"); | |
208 | if (ret) | |
209 | goto err; | |
210 | ret = gpio_request(GPIO_NR_PALMTX_LCD_POWER, "LCD POWER"); | |
211 | if (ret) | |
212 | goto err2; | |
213 | ||
214 | return 0; | |
215 | err2: | |
216 | gpio_free(GPIO_NR_PALMTX_BL_POWER); | |
217 | err: | |
218 | return ret; | |
219 | } | |
220 | ||
221 | static int palmtx_backlight_notify(int brightness) | |
222 | { | |
223 | gpio_set_value(GPIO_NR_PALMTX_BL_POWER, brightness); | |
224 | gpio_set_value(GPIO_NR_PALMTX_LCD_POWER, brightness); | |
225 | return brightness; | |
226 | } | |
227 | ||
228 | static void palmtx_backlight_exit(struct device *dev) | |
229 | { | |
230 | gpio_free(GPIO_NR_PALMTX_BL_POWER); | |
231 | gpio_free(GPIO_NR_PALMTX_LCD_POWER); | |
232 | } | |
233 | ||
234 | static struct platform_pwm_backlight_data palmtx_backlight_data = { | |
235 | .pwm_id = 0, | |
236 | .max_brightness = PALMTX_MAX_INTENSITY, | |
237 | .dft_brightness = PALMTX_MAX_INTENSITY, | |
238 | .pwm_period_ns = PALMTX_PERIOD_NS, | |
239 | .init = palmtx_backlight_init, | |
240 | .notify = palmtx_backlight_notify, | |
241 | .exit = palmtx_backlight_exit, | |
242 | }; | |
243 | ||
244 | static struct platform_device palmtx_backlight = { | |
245 | .name = "pwm-backlight", | |
246 | .dev = { | |
247 | .parent = &pxa27x_device_pwm0.dev, | |
248 | .platform_data = &palmtx_backlight_data, | |
249 | }, | |
250 | }; | |
251 | ||
252 | /****************************************************************************** | |
253 | * IrDA | |
254 | ******************************************************************************/ | |
255 | static void palmtx_irda_transceiver_mode(struct device *dev, int mode) | |
256 | { | |
257 | gpio_set_value(GPIO_NR_PALMTX_IR_DISABLE, mode & IR_OFF); | |
258 | pxa2xx_transceiver_mode(dev, mode); | |
259 | } | |
260 | ||
261 | static struct pxaficp_platform_data palmtx_ficp_platform_data = { | |
262 | .transceiver_cap = IR_SIRMODE | IR_FIRMODE | IR_OFF, | |
263 | .transceiver_mode = palmtx_irda_transceiver_mode, | |
264 | }; | |
265 | ||
266 | /****************************************************************************** | |
267 | * UDC | |
268 | ******************************************************************************/ | |
269 | static void palmtx_udc_command(int cmd) | |
270 | { | |
271 | gpio_set_value(GPIO_NR_PALMTX_USB_POWER, !cmd); | |
272 | udelay(50); | |
273 | gpio_set_value(GPIO_NR_PALMTX_USB_PULLUP, !cmd); | |
274 | } | |
275 | ||
276 | static struct pxa2xx_udc_mach_info palmtx_udc_info __initdata = { | |
277 | .gpio_vbus = GPIO_NR_PALMTX_USB_DETECT_N, | |
278 | .gpio_vbus_inverted = 1, | |
279 | .udc_command = palmtx_udc_command, | |
280 | }; | |
281 | ||
d4b19c42 MV |
282 | /****************************************************************************** |
283 | * Power supply | |
284 | ******************************************************************************/ | |
285 | static int power_supply_init(struct device *dev) | |
286 | { | |
287 | int ret; | |
288 | ||
289 | ret = gpio_request(GPIO_NR_PALMTX_POWER_DETECT, "CABLE_STATE_AC"); | |
290 | if (ret) | |
291 | goto err_cs_ac; | |
292 | ||
293 | ret = gpio_request(GPIO_NR_PALMTX_USB_DETECT_N, "CABLE_STATE_USB"); | |
294 | if (ret) | |
295 | goto err_cs_usb; | |
296 | ||
297 | return 0; | |
298 | ||
299 | err_cs_usb: | |
300 | gpio_free(GPIO_NR_PALMTX_POWER_DETECT); | |
301 | err_cs_ac: | |
302 | return ret; | |
303 | } | |
304 | ||
305 | static int palmtx_is_ac_online(void) | |
306 | { | |
307 | return gpio_get_value(GPIO_NR_PALMTX_POWER_DETECT); | |
308 | } | |
309 | ||
310 | static int palmtx_is_usb_online(void) | |
311 | { | |
312 | return !gpio_get_value(GPIO_NR_PALMTX_USB_DETECT_N); | |
313 | } | |
314 | ||
315 | static void power_supply_exit(struct device *dev) | |
316 | { | |
317 | gpio_free(GPIO_NR_PALMTX_USB_DETECT_N); | |
318 | gpio_free(GPIO_NR_PALMTX_POWER_DETECT); | |
319 | } | |
320 | ||
321 | static char *palmtx_supplicants[] = { | |
322 | "main-battery", | |
323 | }; | |
324 | ||
325 | static struct pda_power_pdata power_supply_info = { | |
326 | .init = power_supply_init, | |
327 | .is_ac_online = palmtx_is_ac_online, | |
328 | .is_usb_online = palmtx_is_usb_online, | |
329 | .exit = power_supply_exit, | |
330 | .supplied_to = palmtx_supplicants, | |
331 | .num_supplicants = ARRAY_SIZE(palmtx_supplicants), | |
332 | }; | |
333 | ||
334 | static struct platform_device power_supply = { | |
335 | .name = "pda-power", | |
336 | .id = -1, | |
337 | .dev = { | |
338 | .platform_data = &power_supply_info, | |
339 | }, | |
340 | }; | |
341 | ||
b5e4ad57 MV |
342 | /****************************************************************************** |
343 | * Framebuffer | |
344 | ******************************************************************************/ | |
345 | static struct pxafb_mode_info palmtx_lcd_modes[] = { | |
346 | { | |
347 | .pixclock = 57692, | |
348 | .xres = 320, | |
349 | .yres = 480, | |
350 | .bpp = 16, | |
351 | ||
352 | .left_margin = 32, | |
353 | .right_margin = 1, | |
354 | .upper_margin = 7, | |
355 | .lower_margin = 1, | |
356 | ||
357 | .hsync_len = 4, | |
358 | .vsync_len = 1, | |
359 | }, | |
360 | }; | |
361 | ||
362 | static struct pxafb_mach_info palmtx_lcd_screen = { | |
363 | .modes = palmtx_lcd_modes, | |
364 | .num_modes = ARRAY_SIZE(palmtx_lcd_modes), | |
365 | .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL, | |
366 | }; | |
367 | ||
368 | /****************************************************************************** | |
369 | * Machine init | |
370 | ******************************************************************************/ | |
371 | static struct platform_device *devices[] __initdata = { | |
372 | #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) | |
373 | &palmtx_pxa_keys, | |
374 | #endif | |
375 | &palmtx_backlight, | |
d4b19c42 | 376 | &power_supply, |
b5e4ad57 MV |
377 | }; |
378 | ||
379 | static struct map_desc palmtx_io_desc[] __initdata = { | |
380 | { | |
381 | .virtual = PALMTX_PCMCIA_VIRT, | |
382 | .pfn = __phys_to_pfn(PALMTX_PCMCIA_PHYS), | |
383 | .length = PALMTX_PCMCIA_SIZE, | |
384 | .type = MT_DEVICE | |
385 | }, | |
386 | }; | |
387 | ||
388 | static void __init palmtx_map_io(void) | |
389 | { | |
390 | pxa_map_io(); | |
391 | iotable_init(palmtx_io_desc, ARRAY_SIZE(palmtx_io_desc)); | |
392 | } | |
393 | ||
394 | static void __init palmtx_init(void) | |
395 | { | |
396 | pxa2xx_mfp_config(ARRAY_AND_SIZE(palmtx_pin_config)); | |
397 | ||
398 | set_pxa_fb_info(&palmtx_lcd_screen); | |
399 | pxa_set_mci_info(&palmtx_mci_platform_data); | |
400 | pxa_set_udc_info(&palmtx_udc_info); | |
401 | pxa_set_ac97_info(NULL); | |
402 | pxa_set_ficp_info(&palmtx_ficp_platform_data); | |
403 | pxa_set_keypad_info(&palmtx_keypad_platform_data); | |
404 | ||
405 | platform_add_devices(devices, ARRAY_SIZE(devices)); | |
406 | } | |
407 | ||
408 | MACHINE_START(PALMTX, "Palm T|X") | |
409 | .phys_io = PALMTX_PHYS_IO_START, | |
410 | .io_pg_offst = io_p2v(0x40000000), | |
411 | .boot_params = 0xa0000100, | |
412 | .map_io = palmtx_map_io, | |
413 | .init_irq = pxa27x_init_irq, | |
414 | .timer = &pxa_timer, | |
415 | .init_machine = palmtx_init | |
416 | MACHINE_END |