1/* SPDX-License-Identifier: GPL-2.0-only OR BSD-3-Clause */ 2 3/* MDIO support for Mellanox Gigabit Ethernet driver 4 * 5 * Copyright (c) 2022 NVIDIA CORPORATION & AFFILIATES, ALL RIGHTS RESERVED. 6 * 7 * This software product is a proprietary product of NVIDIA CORPORATION & 8 * AFFILIATES (the "Company") and all right, title, and interest in and to the 9 * software product, including all associated intellectual property rights, are 10 * and shall remain exclusively with the Company. 11 * 12 * This software product is governed by the End User License Agreement 13 * provided with the software product. 14 */ 15 16#ifndef __MLXBF_GIGE_MDIO_BF2_H__ 17#define __MLXBF_GIGE_MDIO_BF2_H__ 18 19#include <linux/bitfield.h> 20 21#define MLXBF2_GIGE_MDIO_GW_OFFSET 0x0 22#define MLXBF2_GIGE_MDIO_CFG_OFFSET 0x4 23 24/* MDIO GW register bits */ 25#define MLXBF2_GIGE_MDIO_GW_AD_MASK GENMASK(15, 0) 26#define MLXBF2_GIGE_MDIO_GW_DEVAD_MASK GENMASK(20, 16) 27#define MLXBF2_GIGE_MDIO_GW_PARTAD_MASK GENMASK(25, 21) 28#define MLXBF2_GIGE_MDIO_GW_OPCODE_MASK GENMASK(27, 26) 29#define MLXBF2_GIGE_MDIO_GW_ST1_MASK GENMASK(28, 28) 30#define MLXBF2_GIGE_MDIO_GW_BUSY_MASK GENMASK(30, 30) 31 32#define MLXBF2_GIGE_MDIO_GW_AD_SHIFT 0 33#define MLXBF2_GIGE_MDIO_GW_DEVAD_SHIFT 16 34#define MLXBF2_GIGE_MDIO_GW_PARTAD_SHIFT 21 35#define MLXBF2_GIGE_MDIO_GW_OPCODE_SHIFT 26 36#define MLXBF2_GIGE_MDIO_GW_ST1_SHIFT 28 37#define MLXBF2_GIGE_MDIO_GW_BUSY_SHIFT 30 38 39/* MDIO config register bits */ 40#define MLXBF2_GIGE_MDIO_CFG_MDIO_MODE_MASK GENMASK(1, 0) 41#define MLXBF2_GIGE_MDIO_CFG_MDIO3_3_MASK GENMASK(2, 2) 42#define MLXBF2_GIGE_MDIO_CFG_MDIO_FULL_DRIVE_MASK GENMASK(4, 4) 43#define MLXBF2_GIGE_MDIO_CFG_MDC_PERIOD_MASK GENMASK(15, 8) 44#define MLXBF2_GIGE_MDIO_CFG_MDIO_IN_SAMP_MASK GENMASK(23, 16) 45#define MLXBF2_GIGE_MDIO_CFG_MDIO_OUT_SAMP_MASK GENMASK(31, 24) 46 47#define MLXBF2_GIGE_MDIO_CFG_VAL (FIELD_PREP(MLXBF2_GIGE_MDIO_CFG_MDIO_MODE_MASK, 1) | \ 48 FIELD_PREP(MLXBF2_GIGE_MDIO_CFG_MDIO3_3_MASK, 1) | \ 49 FIELD_PREP(MLXBF2_GIGE_MDIO_CFG_MDIO_FULL_DRIVE_MASK, 1) | \ 50 FIELD_PREP(MLXBF2_GIGE_MDIO_CFG_MDIO_IN_SAMP_MASK, 6) | \ 51 FIELD_PREP(MLXBF2_GIGE_MDIO_CFG_MDIO_OUT_SAMP_MASK, 13)) 52 53#endif /* __MLXBF_GIGE_MDIO_BF2_H__ */ 54