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#include <linux/io.h>
17
18#include <mach/hardware.h>
19#include <mach/pxa2xx-regs.h>
20#include <mach/mfp-pxa25x.h>
21#include <mach/reset.h>
22#include <linux/platform_data/irda-pxaficp.h>
23
24void pxa2xx_clear_reset_status(unsigned int mask)
25{
26	/* RESET_STATUS_* has a 1:1 mapping with RCSR */
27	RCSR = mask;
28}
29
30static unsigned long pxa2xx_mfp_fir[] = {
31	GPIO46_FICP_RXD,
32	GPIO47_FICP_TXD,
33};
34
35static unsigned long pxa2xx_mfp_sir[] = {
36	GPIO46_STUART_RXD,
37	GPIO47_STUART_TXD,
38};
39
40static unsigned long pxa2xx_mfp_off[] = {
41	GPIO46_GPIO | MFP_LPM_DRIVE_LOW,
42	GPIO47_GPIO | MFP_LPM_DRIVE_LOW,
43};
44
45void pxa2xx_transceiver_mode(struct device *dev, int mode)
46{
47	if (mode & IR_OFF) {
48		pxa2xx_mfp_config(pxa2xx_mfp_off, ARRAY_SIZE(pxa2xx_mfp_off));
49	} else if (mode & IR_SIRMODE) {
50		pxa2xx_mfp_config(pxa2xx_mfp_sir, ARRAY_SIZE(pxa2xx_mfp_sir));
51	} else if (mode & IR_FIRMODE) {
52		pxa2xx_mfp_config(pxa2xx_mfp_fir, ARRAY_SIZE(pxa2xx_mfp_fir));
53	} else
54		BUG();
55}
56EXPORT_SYMBOL_GPL(pxa2xx_transceiver_mode);
57