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kernel/linux-imx6_3.14.28/include/linux/mfd/janz.h 1.03 KB
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  /*
   * Common Definitions for Janz MODULbus devices
   *
   * Copyright (c) 2010 Ira W. Snyder <iws@ovro.caltech.edu>
   *
   * 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.
   */
  
  #ifndef JANZ_H
  #define JANZ_H
  
  struct janz_platform_data {
  	/* MODULbus Module Number */
  	unsigned int modno;
  };
  
  /* PLX bridge chip onboard registers */
  struct janz_cmodio_onboard_regs {
  	u8 unused1;
  
  	/*
  	 * Read access: interrupt status
  	 * Write access: interrupt disable
  	 */
  	u8 int_disable;
  	u8 unused2;
  
  	/*
  	 * Read access: MODULbus number (hex switch)
  	 * Write access: interrupt enable
  	 */
  	u8 int_enable;
  	u8 unused3;
  
  	/* write-only */
  	u8 reset_assert;
  	u8 unused4;
  
  	/* write-only */
  	u8 reset_deassert;
  	u8 unused5;
  
  	/* read-write access to serial EEPROM */
  	u8 eep;
  	u8 unused6;
  
  	/* write-only access to EEPROM chip select */
  	u8 enid;
  };
  
  #endif /* JANZ_H */