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/arch/arm/mach-pxa/pxa2xx.c

https://github.com/AICP/kernel_asus_grouper
C | 55 lines | 36 code | 7 blank | 12 comment | 5 complexity | 9fea29b397349cb574b8e7c2eb168049 MD5 | raw file
 1/*
 2 * linux/arch/arm/mach-pxa/pxa2xx.c
 3 *
 4 * code specific to pxa2xx
 5 *
 6 * Copyright (C) 2008 Dmitry Baryshkov
 7 *
 8 * This program is free software; you can redistribute it and/or modify
 9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13#include <linux/module.h>
14#include <linux/kernel.h>
15#include <linux/device.h>
16
17#include <mach/hardware.h>
18#include <mach/pxa2xx-regs.h>
19#include <mach/mfp-pxa25x.h>
20#include <mach/reset.h>
21#include <mach/irda.h>
22
23void pxa2xx_clear_reset_status(unsigned int mask)
24{
25	/* RESET_STATUS_* has a 1:1 mapping with RCSR */
26	RCSR = mask;
27}
28
29static unsigned long pxa2xx_mfp_fir[] = {
30	GPIO46_FICP_RXD,
31	GPIO47_FICP_TXD,
32};
33
34static unsigned long pxa2xx_mfp_sir[] = {
35	GPIO46_STUART_RXD,
36	GPIO47_STUART_TXD,
37};
38
39static unsigned long pxa2xx_mfp_off[] = {
40	GPIO46_GPIO | MFP_LPM_DRIVE_LOW,
41	GPIO47_GPIO | MFP_LPM_DRIVE_LOW,
42};
43
44void pxa2xx_transceiver_mode(struct device *dev, int mode)
45{
46	if (mode & IR_OFF) {
47		pxa2xx_mfp_config(pxa2xx_mfp_off, ARRAY_SIZE(pxa2xx_mfp_off));
48	} else if (mode & IR_SIRMODE) {
49		pxa2xx_mfp_config(pxa2xx_mfp_sir, ARRAY_SIZE(pxa2xx_mfp_sir));
50	} else if (mode & IR_FIRMODE) {
51		pxa2xx_mfp_config(pxa2xx_mfp_fir, ARRAY_SIZE(pxa2xx_mfp_fir));
52	} else
53		BUG();
54}
55EXPORT_SYMBOL_GPL(pxa2xx_transceiver_mode);