2 * Hardware definitions for PalmTX
4 * Author: Marek Vasut <marek.vasut@gmail.com>
7 * Alex Osborne <ato@meshy.org>
8 * Cristiano P. <cristianop@users.sourceforge.net>
9 * Jan Herman <2hp@seznam.cz>
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.
16 * (find more info at www.hackndev.com)
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>
29 #include <asm/mach-types.h>
30 #include <asm/mach/arch.h>
31 #include <asm/mach/map.h>
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>
46 /******************************************************************************
48 ******************************************************************************/
49 static unsigned long palmtx_pin_config[] __initdata = {
60 GPIO29_AC97_SDATA_IN_0,
61 GPIO30_AC97_SDATA_OUT,
87 /******************************************************************************
88 * SD/MMC card controller
89 ******************************************************************************/
90 static int palmtx_mci_init(struct device *dev, irq_handler_t palmtx_detect_int,
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);
101 printk(KERN_ERR "%s: cannot request SD/MMC card detect IRQ\n",
106 err = gpio_request(GPIO_NR_PALMTX_SD_POWER, "SD_POWER");
110 err = gpio_request(GPIO_NR_PALMTX_SD_READONLY, "SD_READONLY");
114 printk(KERN_DEBUG "%s: irq registered\n", __func__);
119 gpio_free(GPIO_NR_PALMTX_SD_POWER);
121 free_irq(IRQ_GPIO_PALMTX_SD_DETECT_N, data);
125 static void palmtx_mci_exit(struct device *dev, void *data)
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);
132 static void palmtx_mci_power(struct device *dev, unsigned int vdd)
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));
138 static int palmtx_mci_get_ro(struct device *dev)
140 return gpio_get_value(GPIO_NR_PALMTX_SD_READONLY);
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,
151 /******************************************************************************
153 ******************************************************************************/
154 static unsigned int palmtx_matrix_keys[] = {
155 KEY(0, 0, KEY_POWER),
157 KEY(0, 2, KEY_ENTER),
166 KEY(3, 0, KEY_RIGHT),
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),
177 .debounce_interval = 30,
180 /******************************************************************************
182 ******************************************************************************/
183 static struct gpio_keys_button palmtx_pxa_buttons[] = {
184 {KEY_F8, GPIO_NR_PALMTX_HOTSYNC_BUTTON_N, 1, "HotSync Button" },
187 static struct gpio_keys_platform_data palmtx_pxa_keys_data = {
188 .buttons = palmtx_pxa_buttons,
189 .nbuttons = ARRAY_SIZE(palmtx_pxa_buttons),
192 static struct platform_device palmtx_pxa_keys = {
196 .platform_data = &palmtx_pxa_keys_data,
200 /******************************************************************************
202 ******************************************************************************/
203 static int palmtx_backlight_init(struct device *dev)
207 ret = gpio_request(GPIO_NR_PALMTX_BL_POWER, "BL POWER");
210 ret = gpio_request(GPIO_NR_PALMTX_LCD_POWER, "LCD POWER");
216 gpio_free(GPIO_NR_PALMTX_BL_POWER);
221 static int palmtx_backlight_notify(int brightness)
223 gpio_set_value(GPIO_NR_PALMTX_BL_POWER, brightness);
224 gpio_set_value(GPIO_NR_PALMTX_LCD_POWER, brightness);
228 static void palmtx_backlight_exit(struct device *dev)
230 gpio_free(GPIO_NR_PALMTX_BL_POWER);
231 gpio_free(GPIO_NR_PALMTX_LCD_POWER);
234 static struct platform_pwm_backlight_data palmtx_backlight_data = {
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,
244 static struct platform_device palmtx_backlight = {
245 .name = "pwm-backlight",
247 .parent = &pxa27x_device_pwm0.dev,
248 .platform_data = &palmtx_backlight_data,
252 /******************************************************************************
254 ******************************************************************************/
255 static void palmtx_irda_transceiver_mode(struct device *dev, int mode)
257 gpio_set_value(GPIO_NR_PALMTX_IR_DISABLE, mode & IR_OFF);
258 pxa2xx_transceiver_mode(dev, mode);
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,
266 /******************************************************************************
268 ******************************************************************************/
269 static void palmtx_udc_command(int cmd)
271 gpio_set_value(GPIO_NR_PALMTX_USB_POWER, !cmd);
273 gpio_set_value(GPIO_NR_PALMTX_USB_PULLUP, !cmd);
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,
282 /******************************************************************************
284 ******************************************************************************/
285 static int power_supply_init(struct device *dev)
289 ret = gpio_request(GPIO_NR_PALMTX_POWER_DETECT, "CABLE_STATE_AC");
293 ret = gpio_request(GPIO_NR_PALMTX_USB_DETECT_N, "CABLE_STATE_USB");
300 gpio_free(GPIO_NR_PALMTX_POWER_DETECT);
305 static int palmtx_is_ac_online(void)
307 return gpio_get_value(GPIO_NR_PALMTX_POWER_DETECT);
310 static int palmtx_is_usb_online(void)
312 return !gpio_get_value(GPIO_NR_PALMTX_USB_DETECT_N);
315 static void power_supply_exit(struct device *dev)
317 gpio_free(GPIO_NR_PALMTX_USB_DETECT_N);
318 gpio_free(GPIO_NR_PALMTX_POWER_DETECT);
321 static char *palmtx_supplicants[] = {
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),
334 static struct platform_device power_supply = {
338 .platform_data = &power_supply_info,
342 /******************************************************************************
344 ******************************************************************************/
345 static struct pxafb_mode_info palmtx_lcd_modes[] = {
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,
368 /******************************************************************************
370 ******************************************************************************/
371 static struct platform_device *devices[] __initdata = {
372 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
379 static struct map_desc palmtx_io_desc[] __initdata = {
381 .virtual = PALMTX_PCMCIA_VIRT,
382 .pfn = __phys_to_pfn(PALMTX_PCMCIA_PHYS),
383 .length = PALMTX_PCMCIA_SIZE,
388 static void __init palmtx_map_io(void)
391 iotable_init(palmtx_io_desc, ARRAY_SIZE(palmtx_io_desc));
394 static void __init palmtx_init(void)
396 pxa2xx_mfp_config(ARRAY_AND_SIZE(palmtx_pin_config));
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);
405 platform_add_devices(devices, ARRAY_SIZE(devices));
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,
415 .init_machine = palmtx_init