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
pxa2xx_clear_reset_status(unsigned int mask)21 void pxa2xx_clear_reset_status(unsigned int mask)
22 {
23 /* RESET_STATUS_* has a 1:1 mapping with RCSR */
24 RCSR = mask;
25 }
26
27 static unsigned long pxa2xx_mfp_fir[] = {
28 GPIO46_FICP_RXD,
29 GPIO47_FICP_TXD,
30 };
31
32 static unsigned long pxa2xx_mfp_sir[] = {
33 GPIO46_STUART_RXD,
34 GPIO47_STUART_TXD,
35 };
36
37 static unsigned long pxa2xx_mfp_off[] = {
38 GPIO46_GPIO | MFP_LPM_DRIVE_LOW,
39 GPIO47_GPIO | MFP_LPM_DRIVE_LOW,
40 };
41
pxa2xx_transceiver_mode(struct device * dev,int mode)42 void 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 }
53 EXPORT_SYMBOL_GPL(pxa2xx_transceiver_mode);
54