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path: root/drivers/net/ethernet/aquantia/atlantic/aq_phy.c
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Diffstat (limited to 'drivers/net/ethernet/aquantia/atlantic/aq_phy.c')
-rw-r--r--drivers/net/ethernet/aquantia/atlantic/aq_phy.c29
1 files changed, 27 insertions, 2 deletions
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_phy.c b/drivers/net/ethernet/aquantia/atlantic/aq_phy.c
index 51ae921e3e1f..949ac2351701 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_phy.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_phy.c
@@ -1,10 +1,14 @@
// SPDX-License-Identifier: GPL-2.0-only
-/* aQuantia Corporation Network Driver
- * Copyright (C) 2018-2019 aQuantia Corporation. All rights reserved
+/* Atlantic Network Driver
+ *
+ * Copyright (C) 2018-2019 aQuantia Corporation
+ * Copyright (C) 2019-2020 Marvell International Ltd.
*/
#include "aq_phy.h"
+#define HW_ATL_PTP_DISABLE_MSK BIT(10)
+
bool aq_mdio_busy_wait(struct aq_hw_s *aq_hw)
{
int err = 0;
@@ -145,3 +149,24 @@ bool aq_phy_init(struct aq_hw_s *aq_hw)
return true;
}
+
+void aq_phy_disable_ptp(struct aq_hw_s *aq_hw)
+{
+ static const u16 ptp_registers[] = {
+ 0x031e,
+ 0x031d,
+ 0x031c,
+ 0x031b,
+ };
+ u16 val;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(ptp_registers); i++) {
+ val = aq_phy_read_reg(aq_hw, MDIO_MMD_VEND1,
+ ptp_registers[i]);
+
+ aq_phy_write_reg(aq_hw, MDIO_MMD_VEND1,
+ ptp_registers[i],
+ val & ~HW_ATL_PTP_DISABLE_MSK);
+ }
+}