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-rw-r--r--arch/arm/mach-pxa/palmtx.c416
1 files changed, 416 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/palmtx.c b/arch/arm/mach-pxa/palmtx.c
new file mode 100644
index 000000000000..408657a24f8c
--- /dev/null
+++ b/arch/arm/mach-pxa/palmtx.c
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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>
25#include <linux/pda_power.h>
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
33#include <asm/arch/audio.h>
34#include <asm/arch/palmtx.h>
35#include <asm/arch/mmc.h>
36#include <asm/arch/pxafb.h>
37#include <asm/arch/pxa-regs.h>
38#include <asm/arch/mfp-pxa27x.h>
39#include <asm/arch/irda.h>
40#include <asm/arch/pxa27x_keypad.h>
41#include <asm/arch/udc.h>
42
43#include "generic.h"
44#include "devices.h"
45
46/******************************************************************************
47 * Pin configuration
48 ******************************************************************************/
49static 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,
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,
85};
86
87/******************************************************************************
88 * SD/MMC card controller
89 ******************************************************************************/
90static 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
118ro_err:
119 gpio_free(GPIO_NR_PALMTX_SD_POWER);
120pwr_err:
121 free_irq(IRQ_GPIO_PALMTX_SD_DETECT_N, data);
122 return err;
123}
124
125static 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
132static 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
138static int palmtx_mci_get_ro(struct device *dev)
139{
140 return gpio_get_value(GPIO_NR_PALMTX_SD_READONLY);
141}
142
143static 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 ******************************************************************************/
154static 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
171static 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 ******************************************************************************/
183static struct gpio_keys_button palmtx_pxa_buttons[] = {
184 {KEY_F8, GPIO_NR_PALMTX_HOTSYNC_BUTTON_N, 1, "HotSync Button" },
185};
186
187static struct gpio_keys_platform_data palmtx_pxa_keys_data = {
188 .buttons = palmtx_pxa_buttons,
189 .nbuttons = ARRAY_SIZE(palmtx_pxa_buttons),
190};
191
192static 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 ******************************************************************************/
203static 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;
215err2:
216 gpio_free(GPIO_NR_PALMTX_BL_POWER);
217err:
218 return ret;
219}
220
221static 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
228static 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
234static 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
244static 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 ******************************************************************************/
255static 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
261static 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 ******************************************************************************/
269static 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
276static 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
282/******************************************************************************
283 * Power supply
284 ******************************************************************************/
285static 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
299err_cs_usb:
300 gpio_free(GPIO_NR_PALMTX_POWER_DETECT);
301err_cs_ac:
302 return ret;
303}
304
305static int palmtx_is_ac_online(void)
306{
307 return gpio_get_value(GPIO_NR_PALMTX_POWER_DETECT);
308}
309
310static int palmtx_is_usb_online(void)
311{
312 return !gpio_get_value(GPIO_NR_PALMTX_USB_DETECT_N);
313}
314
315static 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
321static char *palmtx_supplicants[] = {
322 "main-battery",
323};
324
325static 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
334static struct platform_device power_supply = {
335 .name = "pda-power",
336 .id = -1,
337 .dev = {
338 .platform_data = &power_supply_info,
339 },
340};
341
342/******************************************************************************
343 * Framebuffer
344 ******************************************************************************/
345static 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
362static 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 ******************************************************************************/
371static 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,
376 &power_supply,
377};
378
379static 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
388static void __init palmtx_map_io(void)
389{
390 pxa_map_io();
391 iotable_init(palmtx_io_desc, ARRAY_SIZE(palmtx_io_desc));
392}
393
394static 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
408MACHINE_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
416MACHINE_END
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-12 06:28:51 -0500