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kernel/linux-rt-4.4.41/arch/powerpc/include/asm/ucc.h 1.69 KB
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  /*
   * Copyright (C) 2006 Freescale Semiconductor, Inc. All rights reserved.
   *
   * Authors: 	Shlomi Gridish <gridish@freescale.com>
   * 		Li Yang <leoli@freescale.com>
   *
   * Description:
   * Internal header file for UCC unit routines.
   *
   * 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 __UCC_H__
  #define __UCC_H__
  
  #include <asm/immap_qe.h>
  #include <asm/qe.h>
  
  #define STATISTICS
  
  #define UCC_MAX_NUM	8
  
  /* Slow or fast type for UCCs.
  */
  enum ucc_speed_type {
  	UCC_SPEED_TYPE_FAST = UCC_GUEMR_MODE_FAST_RX | UCC_GUEMR_MODE_FAST_TX,
  	UCC_SPEED_TYPE_SLOW = UCC_GUEMR_MODE_SLOW_RX | UCC_GUEMR_MODE_SLOW_TX
  };
  
  /* ucc_set_type
   * Sets UCC to slow or fast mode.
   *
   * ucc_num - (In) number of UCC (0-7).
   * speed   - (In) slow or fast mode for UCC.
   */
  int ucc_set_type(unsigned int ucc_num, enum ucc_speed_type speed);
  
  int ucc_set_qe_mux_mii_mng(unsigned int ucc_num);
  
  int ucc_set_qe_mux_rxtx(unsigned int ucc_num, enum qe_clock clock,
  	enum comm_dir mode);
  
  int ucc_mux_set_grant_tsa_bkpt(unsigned int ucc_num, int set, u32 mask);
  
  /* QE MUX clock routing for UCC
  */
  static inline int ucc_set_qe_mux_grant(unsigned int ucc_num, int set)
  {
  	return ucc_mux_set_grant_tsa_bkpt(ucc_num, set, QE_CMXUCR_GRANT);
  }
  
  static inline int ucc_set_qe_mux_tsa(unsigned int ucc_num, int set)
  {
  	return ucc_mux_set_grant_tsa_bkpt(ucc_num, set, QE_CMXUCR_TSA);
  }
  
  static inline int ucc_set_qe_mux_bkpt(unsigned int ucc_num, int set)
  {
  	return ucc_mux_set_grant_tsa_bkpt(ucc_num, set, QE_CMXUCR_BKPT);
  }
  
  #endif				/* __UCC_H__ */