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

   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