freebsd-src/sys/dev/enetc/enetc_mdio.h
Warner Losh 4d846d260e spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD
The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with:		pfg
MFC After:		3 days
Sponsored by:		Netflix
2023-05-12 10:44:03 -06:00

59 lines
2.2 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2021 Alstom Group.
* Copyright (c) 2021 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 ``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 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.
*/
#ifndef _ENETC_MDIO_H_
#define _ENETC_MDIO_H_
/* MDIO registers */
#define ENETC_MDIO_CFG 0x0 /* MDIO configuration and status */
#define MDIO_CFG_CLKDIV(x) ((((x) >> 1) & 0xff) << 8)
#define ENETC_MDIO_CTL 0x4 /* MDIO control */
#define MDIO_CTL_DEV_ADDR(x) ((x) & 0x1f)
#define MDIO_CTL_PORT_ADDR(x) (((x) & 0x1f) << 5)
#define ENETC_MDIO_DATA 0x8 /* MDIO data */
#define MDIO_DATA(x) ((x) & 0xffff)
#define ENETC_MDIO_ADDR 0xc /* MDIO address */
#define MDIO_CFG_BSY BIT(0)
#define MDIO_CFG_RD_ER BIT(1)
#define MDIO_CFG_ENC45 BIT(6)
#define MDIO_CFG_NEG BIT(23)
#define MDIO_CTL_READ BIT(15)
#define MII_ADDR_C45 BIT(30)
/* MDIO configuration and helpers */
#define ENETC_MDC_DIV 258
#define ENETC_TIMEOUT 1000
int enetc_mdio_write(struct resource*, int, int, int, int);
int enetc_mdio_read(struct resource*, int, int, int);
#endif