FreeBSD/Linux Kernel Cross Reference
sys/arm/annapurna/alpine/alpine_serdes.h

     /*-
      * Copyright (c) 2015,2016 Annapurna Labs Ltd. and affiliates
      * All rights reserved.
      *
      * Developed by Semihalf.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     * $FreeBSD$
     */
    
    #ifndef __ALPINE_SERDES_H__
    #define __ALPINE_SERDES_H__
    
    /* SerDes ETH mode */
    enum alpine_serdes_eth_mode {
            ALPINE_SERDES_ETH_MODE_SGMII,
            ALPINE_SERDES_ETH_MODE_KR,
    };
    
    /*
     * Get SerDes group regs base, to be used in relevant Alpine drivers.
     * Valid group is 0..3.
     * Returns virtual base address of the group regs base.
     */
    void *alpine_serdes_resource_get(uint32_t group);
    
    /*
     * Set SerDes ETH mode for an entire group, unless already set
     * Valid group is 0..3.
     * Returns 0 upon success.
     */
    int alpine_serdes_eth_mode_set(uint32_t group,
        enum alpine_serdes_eth_mode mode);
    
    /* Lock the all serdes group for using common registers */
    void alpine_serdes_eth_group_lock(uint32_t group);
    
    /* Unlock the all serdes group for using common registers */
    void alpine_serdes_eth_group_unlock(uint32_t group);
    
    #endif /* __ALPINE_SERDES_H__ */

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