netdev - [net-next 4/6] enetc_ptp: support ptp virtual clock

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Date:   Fri,  7 May 2021 16:57:54 +0800
From:   Yangbo Lu <yangbo.lu@....com>
To:     netdev@...r.kernel.org
Cc:     Yangbo Lu <yangbo.lu@....com>,
        "David S . Miller" <davem@...emloft.net>,
        Richard Cochran <richardcochran@...il.com>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Jakub Kicinski <kuba@...nel.org>
Subject: [net-next 4/6] enetc_ptp: support ptp virtual clock

Add support for ptp virtual clock.

Signed-off-by: Yangbo Lu <yangbo.lu@....com>
---
 drivers/net/ethernet/freescale/enetc/enetc_ptp.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/net/ethernet/freescale/enetc/enetc_ptp.c b/drivers/net/ethernet/freescale/enetc/enetc_ptp.c
index bc594892507a..52de736df800 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc_ptp.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc_ptp.c
@@ -10,6 +10,16 @@
 int enetc_phc_index = -1;
 EXPORT_SYMBOL(enetc_phc_index);
 
+struct ptp_vclock_cc ptp_qoriq_vclock_cc = {
+	.cc.read		= ptp_qoriq_clock_read,
+	.cc.mask		= CYCLECOUNTER_MASK(64),
+	.cc.shift		= 28,
+	.cc.mult		= (1 << 28),
+	.refresh_interval	= (HZ * 60),
+	.mult_num		= (1 << 6),
+	.mult_dem		= 15625,
+};
+
 static struct ptp_clock_info enetc_ptp_caps = {
 	.owner		= THIS_MODULE,
 	.name		= "ENETC PTP clock",
@@ -24,6 +34,7 @@ static struct ptp_clock_info enetc_ptp_caps = {
 	.gettime64	= ptp_qoriq_gettime,
 	.settime64	= ptp_qoriq_settime,
 	.enable		= ptp_qoriq_enable,
+	.vclock_cc	= &ptp_qoriq_vclock_cc,
 };
 
 static int enetc_ptp_probe(struct pci_dev *pdev,
-- 
2.25.1