1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * linux/arch/arm/mach-pxa/pxa2xx.c
4 *
5 * code specific to pxa2xx
6 *
7 * Copyright (C) 2008 Dmitry Baryshkov
8 */
9
10#include <linux/module.h>
11#include <linux/kernel.h>
12#include <linux/device.h>
13#include <linux/io.h>
14
15#include <mach/hardware.h>
16#include <mach/pxa2xx-regs.h>
17#include "mfp-pxa25x.h"
18#include <mach/reset.h>
19#include <linux/platform_data/irda-pxaficp.h>
20
21void pxa2xx_clear_reset_status(unsigned int mask)
22{
23	/* RESET_STATUS_* has a 1:1 mapping with RCSR */
24	RCSR = mask;
25}
26
27static unsigned long pxa2xx_mfp_fir[] = {
28	GPIO46_FICP_RXD,
29	GPIO47_FICP_TXD,
30};
31
32static unsigned long pxa2xx_mfp_sir[] = {
33	GPIO46_STUART_RXD,
34	GPIO47_STUART_TXD,
35};
36
37static unsigned long pxa2xx_mfp_off[] = {
38	GPIO46_GPIO | MFP_LPM_DRIVE_LOW,
39	GPIO47_GPIO | MFP_LPM_DRIVE_LOW,
40};
41
42void pxa2xx_transceiver_mode(struct device *dev, int mode)
43{
44	if (mode & IR_OFF) {
45		pxa2xx_mfp_config(pxa2xx_mfp_off, ARRAY_SIZE(pxa2xx_mfp_off));
46	} else if (mode & IR_SIRMODE) {
47		pxa2xx_mfp_config(pxa2xx_mfp_sir, ARRAY_SIZE(pxa2xx_mfp_sir));
48	} else if (mode & IR_FIRMODE) {
49		pxa2xx_mfp_config(pxa2xx_mfp_fir, ARRAY_SIZE(pxa2xx_mfp_fir));
50	} else
51		BUG();
52}
53EXPORT_SYMBOL_GPL(pxa2xx_transceiver_mode);
54