/*
   * Copyright 2009 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
   *
   * Initial development of this code was funded by
   * Phytec Messtechnik GmbH, http://www.phytec.de
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; either version 2 of the License, or
   * (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.

   */
  
  #include <linux/module.h>
  #include <linux/err.h>
  #include <linux/io.h>
  #include <linux/clk.h>
  #include <mach/audmux.h>
  #include <mach/hardware.h>
  
  static void __iomem *audmux_base;

  static unsigned char port_mapping[] = {
  	0x0, 0x4, 0x8, 0x10, 0x14, 0x1c,
  };

  
  int mxc_audmux_v1_configure_port(unsigned int port, unsigned int pcr)
  {
  	if (!audmux_base) {
  		printk("%s: not configured
  ", __func__);
  		return -ENOSYS;
  	}

  	if (port >= ARRAY_SIZE(port_mapping))
  		return -EINVAL;
  
  	writel(pcr, audmux_base + port_mapping[port]);

  
  	return 0;
  }
  EXPORT_SYMBOL_GPL(mxc_audmux_v1_configure_port);
  
  static int mxc_audmux_v1_init(void)
  {

  #ifdef CONFIG_MACH_MX21
  	if (cpu_is_mx21())
  		audmux_base = MX21_IO_ADDRESS(MX21_AUDMUX_BASE_ADDR);
  	else
  #endif
  #ifdef CONFIG_MACH_MX27
  	if (cpu_is_mx27())
  		audmux_base = MX27_IO_ADDRESS(MX27_AUDMUX_BASE_ADDR);
  	else
  #endif
  		(void)0;
  	

  	return 0;
  }
  
  postcore_initcall(mxc_audmux_v1_init);