release/src-rt-6.x.4708/linux/linux-2.6.36/arch/powerpc/include/asm/ucc.h

   1 /*
   2  * Copyright (C) 2006 Freescale Semicondutor, Inc. All rights reserved.
   3  *
   4  * Authors:     Shlomi Gridish <gridish@freescale.com>
   5  *              Li Yang <leoli@freescale.com>
   6  *
   7  * Description:
   8  * Internal header file for UCC unit routines.
   9  *
  10  * This program is free software; you can redistribute  it and/or modify it
  11  * under  the terms of  the GNU General  Public License as published by the
  12  * Free Software Foundation;  either version 2 of the  License, or (at your
  13  * option) any later version.
  14  */
  15 #ifndef __UCC_H__
  16 #define __UCC_H__
  17
  18 #include <asm/immap_qe.h>
  19 #include <asm/qe.h>
  20
  21 #define STATISTICS
  22
  23 #define UCC_MAX_NUM     8
  24
  25 /* Slow or fast type for UCCs.
  26 */
  27 enum ucc_speed_type {
  28         UCC_SPEED_TYPE_FAST = UCC_GUEMR_MODE_FAST_RX | UCC_GUEMR_MODE_FAST_TX,
  29         UCC_SPEED_TYPE_SLOW = UCC_GUEMR_MODE_SLOW_RX | UCC_GUEMR_MODE_SLOW_TX
  30 };
  31
  32 /* ucc_set_type
  33  * Sets UCC to slow or fast mode.
  34  *
  35  * ucc_num - (In) number of UCC (0-7).
  36  * speed   - (In) slow or fast mode for UCC.
  37  */
  38 int ucc_set_type(unsigned int ucc_num, enum ucc_speed_type speed);
  39
  40 int ucc_set_qe_mux_mii_mng(unsigned int ucc_num);
  41
  42 int ucc_set_qe_mux_rxtx(unsigned int ucc_num, enum qe_clock clock,
  43         enum comm_dir mode);
  44
  45 int ucc_mux_set_grant_tsa_bkpt(unsigned int ucc_num, int set, u32 mask);
  46
  47 /* QE MUX clock routing for UCC
  48 */
  49 static inline int ucc_set_qe_mux_grant(unsigned int ucc_num, int set)
  50 {
  51         return ucc_mux_set_grant_tsa_bkpt(ucc_num, set, QE_CMXUCR_GRANT);
  52 }
  53
  54 static inline int ucc_set_qe_mux_tsa(unsigned int ucc_num, int set)
  55 {
  56         return ucc_mux_set_grant_tsa_bkpt(ucc_num, set, QE_CMXUCR_TSA);
  57 }
  58
  59 static inline int ucc_set_qe_mux_bkpt(unsigned int ucc_num, int set)
  60 {
  61         return ucc_mux_set_grant_tsa_bkpt(ucc_num, set, QE_CMXUCR_BKPT);
  62 }
  63
  64 #endif                          /* __UCC_H__ */