162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 262306a36Sopenharmony_ci/* Marvell PTP driver 362306a36Sopenharmony_ci * 462306a36Sopenharmony_ci * Copyright (C) 2020 Marvell. 562306a36Sopenharmony_ci * 662306a36Sopenharmony_ci */ 762306a36Sopenharmony_ci 862306a36Sopenharmony_ci#ifndef PTP_H 962306a36Sopenharmony_ci#define PTP_H 1062306a36Sopenharmony_ci 1162306a36Sopenharmony_ci#include <linux/timecounter.h> 1262306a36Sopenharmony_ci#include <linux/time64.h> 1362306a36Sopenharmony_ci#include <linux/spinlock.h> 1462306a36Sopenharmony_ci 1562306a36Sopenharmony_cistruct ptp { 1662306a36Sopenharmony_ci struct pci_dev *pdev; 1762306a36Sopenharmony_ci void __iomem *reg_base; 1862306a36Sopenharmony_ci u64 (*read_ptp_tstmp)(struct ptp *ptp); 1962306a36Sopenharmony_ci spinlock_t ptp_lock; /* lock */ 2062306a36Sopenharmony_ci struct hrtimer hrtimer; 2162306a36Sopenharmony_ci ktime_t last_ts; 2262306a36Sopenharmony_ci u32 clock_rate; 2362306a36Sopenharmony_ci u32 clock_period; 2462306a36Sopenharmony_ci}; 2562306a36Sopenharmony_ci 2662306a36Sopenharmony_cistruct rvu; 2762306a36Sopenharmony_cistruct ptp *ptp_get(void); 2862306a36Sopenharmony_civoid ptp_put(struct ptp *ptp); 2962306a36Sopenharmony_civoid ptp_start(struct rvu *rvu, u64 sclk, u32 ext_clk_freq, u32 extts); 3062306a36Sopenharmony_ci 3162306a36Sopenharmony_ciextern struct pci_driver ptp_driver; 3262306a36Sopenharmony_ci 3362306a36Sopenharmony_ci#endif 34