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

   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 "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