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
pxa2xx_clear_reset_status(unsigned int mask)24 void pxa2xx_clear_reset_status(unsigned int mask)
25 {
26 /* RESET_STATUS_* has a 1:1 mapping with RCSR */
27 RCSR = mask;
28 }
29
30 static unsigned long pxa2xx_mfp_fir[] = {
31 GPIO46_FICP_RXD,
32 GPIO47_FICP_TXD,
33 };
34
35 static unsigned long pxa2xx_mfp_sir[] = {
36 GPIO46_STUART_RXD,
37 GPIO47_STUART_TXD,
38 };
39
40 static unsigned long pxa2xx_mfp_off[] = {
41 GPIO46_GPIO | MFP_LPM_DRIVE_LOW,
42 GPIO47_GPIO | MFP_LPM_DRIVE_LOW,
43 };
44
pxa2xx_transceiver_mode(struct device * dev,int mode)45 void 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 }
56 EXPORT_SYMBOL_GPL(pxa2xx_transceiver_mode);
57