text: /*
   * linux/arch/arm/mach-pxa/pxa2xx.c
   *
   * code specific to pxa2xx
   *
   * Copyright (C) 2008 Dmitry Baryshkov
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License version 2 as
   * published by the Free Software Foundation.
   */
  
  #include <linux/module.h>
  #include <linux/kernel.h>
  #include <linux/device.h>
  #include <linux/io.h>
  
  #include <mach/hardware.h>
  #include <mach/pxa2xx-regs.h>
  #include <mach/mfp-pxa25x.h>
  #include <mach/reset.h>
  #include <linux/platform_data/irda-pxaficp.h>
  
  void pxa2xx_clear_reset_status(unsigned int mask)
  {
  	/* RESET_STATUS_* has a 1:1 mapping with RCSR */
  	RCSR = mask;
  }
  
  static unsigned long pxa2xx_mfp_fir[] = {
  	GPIO46_FICP_RXD,
  	GPIO47_FICP_TXD,
  };
  
  static unsigned long pxa2xx_mfp_sir[] = {
  	GPIO46_STUART_RXD,
  	GPIO47_STUART_TXD,
  };
  
  static unsigned long pxa2xx_mfp_off[] = {
  	GPIO46_GPIO | MFP_LPM_DRIVE_LOW,
  	GPIO47_GPIO | MFP_LPM_DRIVE_LOW,
  };
  
  void pxa2xx_transceiver_mode(struct device *dev, int mode)
  {
  	if (mode & IR_OFF) {
  		pxa2xx_mfp_config(pxa2xx_mfp_off, ARRAY_SIZE(pxa2xx_mfp_off));
  	} else if (mode & IR_SIRMODE) {
  		pxa2xx_mfp_config(pxa2xx_mfp_sir, ARRAY_SIZE(pxa2xx_mfp_sir));
  	} else if (mode & IR_FIRMODE) {
  		pxa2xx_mfp_config(pxa2xx_mfp_fir, ARRAY_SIZE(pxa2xx_mfp_fir));
  	} else
  		BUG();
  }
  EXPORT_SYMBOL_GPL(pxa2xx_transceiver_mode);
  