Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1589 insertions, 0 deletions

diff --git a/drivers/net/phy/mscc/mscc_ptp.c b/drivers/net/phy/mscc/mscc_ptp.c
new file mode 100644
index 000000000..cf728bfd8
--- /dev/null
+++ b/drivers/net/phy/mscc/mscc_ptp.c
@@ -0,0 +1,1589 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Driver for Microsemi VSC85xx PHYs - timestamping and PHC support
+ *
+ * Authors: Quentin Schulz & Antoine Tenart
+ * License: Dual MIT/GPL
+ * Copyright (c) 2020 Microsemi Corporation
+ */
+
+#include <linux/gpio/consumer.h>
+#include <linux/ip.h>
+#include <linux/net_tstamp.h>
+#include <linux/mii.h>
+#include <linux/phy.h>
+#include <linux/ptp_classify.h>
+#include <linux/ptp_clock_kernel.h>
+#include <linux/udp.h>
+#include <asm/unaligned.h>
+
+#include "mscc.h"
+#include "mscc_ptp.h"
+
+/* Two PHYs share the same 1588 processor and it's to be entirely configured
+ * through the base PHY of this processor.
+ */
+/* phydev->bus->mdio_lock should be locked when using this function */
+static int phy_ts_base_write(struct phy_device *phydev, u32 regnum, u16 val)
+{
+	struct vsc8531_private *priv = phydev->priv;
+
+	WARN_ON_ONCE(!mutex_is_locked(&phydev->mdio.bus->mdio_lock));
+	return __mdiobus_write(phydev->mdio.bus, priv->ts_base_addr, regnum,
+			       val);
+}
+
+/* phydev->bus->mdio_lock should be locked when using this function */
+static int phy_ts_base_read(struct phy_device *phydev, u32 regnum)
+{
+	struct vsc8531_private *priv = phydev->priv;
+
+	WARN_ON_ONCE(!mutex_is_locked(&phydev->mdio.bus->mdio_lock));
+	return __mdiobus_read(phydev->mdio.bus, priv->ts_base_addr, regnum);
+}
+
+enum ts_blk_hw {
+	INGRESS_ENGINE_0,
+	EGRESS_ENGINE_0,
+	INGRESS_ENGINE_1,
+	EGRESS_ENGINE_1,
+	INGRESS_ENGINE_2,
+	EGRESS_ENGINE_2,
+	PROCESSOR_0,
+	PROCESSOR_1,
+};
+
+enum ts_blk {
+	INGRESS,
+	EGRESS,
+	PROCESSOR,
+};
+
+static u32 vsc85xx_ts_read_csr(struct phy_device *phydev, enum ts_blk blk,
+			       u16 addr)
+{
+	struct vsc8531_private *priv = phydev->priv;
+	bool base_port = phydev->mdio.addr == priv->ts_base_addr;
+	u32 val, cnt = 0;
+	enum ts_blk_hw blk_hw;
+
+	switch (blk) {
+	case INGRESS:
+		blk_hw = base_port ? INGRESS_ENGINE_0 : INGRESS_ENGINE_1;
+		break;
+	case EGRESS:
+		blk_hw = base_port ? EGRESS_ENGINE_0 : EGRESS_ENGINE_1;
+		break;
+	case PROCESSOR:
+	default:
+		blk_hw = base_port ? PROCESSOR_0 : PROCESSOR_1;
+		break;
+	}
+
+	phy_lock_mdio_bus(phydev);
+
+	phy_ts_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_1588);
+
+	phy_ts_base_write(phydev, MSCC_PHY_TS_BIU_ADDR_CNTL, BIU_ADDR_EXE |
+			  BIU_ADDR_READ | BIU_BLK_ID(blk_hw) |
+			  BIU_CSR_ADDR(addr));
+
+	do {
+		val = phy_ts_base_read(phydev, MSCC_PHY_TS_BIU_ADDR_CNTL);
+	} while (!(val & BIU_ADDR_EXE) && cnt++ < BIU_ADDR_CNT_MAX);
+
+	val = phy_ts_base_read(phydev, MSCC_PHY_TS_CSR_DATA_MSB);
+	val <<= 16;
+	val |= phy_ts_base_read(phydev, MSCC_PHY_TS_CSR_DATA_LSB);
+
+	phy_ts_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
+
+	phy_unlock_mdio_bus(phydev);
+
+	return val;
+}
+
+static void vsc85xx_ts_write_csr(struct phy_device *phydev, enum ts_blk blk,
+				 u16 addr, u32 val)
+{
+	struct vsc8531_private *priv = phydev->priv;
+	bool base_port = phydev->mdio.addr == priv->ts_base_addr;
+	u32 reg, bypass, cnt = 0, lower = val & 0xffff, upper = val >> 16;
+	bool cond = (addr == MSCC_PHY_PTP_LTC_CTRL ||
+		     addr == MSCC_PHY_1588_INGR_VSC85XX_INT_MASK ||
+		     addr == MSCC_PHY_1588_VSC85XX_INT_MASK ||
+		     addr == MSCC_PHY_1588_INGR_VSC85XX_INT_STATUS ||
+		     addr == MSCC_PHY_1588_VSC85XX_INT_STATUS) &&
+		    blk == PROCESSOR;
+	enum ts_blk_hw blk_hw;
+
+	switch (blk) {
+	case INGRESS:
+		blk_hw = base_port ? INGRESS_ENGINE_0 : INGRESS_ENGINE_1;
+		break;
+	case EGRESS:
+		blk_hw = base_port ? EGRESS_ENGINE_0 : EGRESS_ENGINE_1;
+		break;
+	case PROCESSOR:
+	default:
+		blk_hw = base_port ? PROCESSOR_0 : PROCESSOR_1;
+		break;
+	}
+
+	phy_lock_mdio_bus(phydev);
+
+	bypass = phy_ts_base_read(phydev, MSCC_PHY_BYPASS_CONTROL);
+
+	phy_ts_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_1588);
+
+	if (!cond || upper)
+		phy_ts_base_write(phydev, MSCC_PHY_TS_CSR_DATA_MSB, upper);
+
+	phy_ts_base_write(phydev, MSCC_PHY_TS_CSR_DATA_LSB, lower);
+
+	phy_ts_base_write(phydev, MSCC_PHY_TS_BIU_ADDR_CNTL, BIU_ADDR_EXE |
+			  BIU_ADDR_WRITE | BIU_BLK_ID(blk_hw) |
+			  BIU_CSR_ADDR(addr));
+
+	do {
+		reg = phy_ts_base_read(phydev, MSCC_PHY_TS_BIU_ADDR_CNTL);
+	} while (!(reg & BIU_ADDR_EXE) && cnt++ < BIU_ADDR_CNT_MAX);
+
+	phy_ts_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
+
+	if (cond && upper)
+		phy_ts_base_write(phydev, MSCC_PHY_BYPASS_CONTROL, bypass);
+
+	phy_unlock_mdio_bus(phydev);
+}
+
+/* Pick bytes from PTP header */
+#define PTP_HEADER_TRNSP_MSG		26
+#define PTP_HEADER_DOMAIN_NUM		25
+#define PTP_HEADER_BYTE_8_31(x)		(31 - (x))
+#define MAC_ADDRESS_BYTE(x)		((x) + (35 - ETH_ALEN + 1))
+
+static int vsc85xx_ts_fsb_init(struct phy_device *phydev)
+{
+	u8 sig_sel[16] = {};
+	signed char i, pos = 0;
+
+	/* Seq ID is 2B long and starts at 30th byte */
+	for (i = 1; i >= 0; i--)
+		sig_sel[pos++] = PTP_HEADER_BYTE_8_31(30 + i);
+
+	/* DomainNum */
+	sig_sel[pos++] = PTP_HEADER_DOMAIN_NUM;
+
+	/* MsgType */
+	sig_sel[pos++] = PTP_HEADER_TRNSP_MSG;
+
+	/* MAC address is 6B long */
+	for (i = ETH_ALEN - 1; i >= 0; i--)
+		sig_sel[pos++] = MAC_ADDRESS_BYTE(i);
+
+	/* Fill the last bytes of the signature to reach a 16B signature */
+	for (; pos < ARRAY_SIZE(sig_sel); pos++)
+		sig_sel[pos] = PTP_HEADER_TRNSP_MSG;
+
+	for (i = 0; i <= 2; i++) {
+		u32 val = 0;
+
+		for (pos = i * 5 + 4; pos >= i * 5; pos--)
+			val = (val << 6) | sig_sel[pos];
+
+		vsc85xx_ts_write_csr(phydev, EGRESS, MSCC_PHY_ANA_FSB_REG(i),
+				     val);
+	}
+
+	vsc85xx_ts_write_csr(phydev, EGRESS, MSCC_PHY_ANA_FSB_REG(3),
+			     sig_sel[15]);
+
+	return 0;
+}
+
+static const u32 vsc85xx_egr_latency[] = {
+	/* Copper Egress */
+	1272, /* 1000Mbps */
+	12516, /* 100Mbps */
+	125444, /* 10Mbps */
+	/* Fiber Egress */
+	1277, /* 1000Mbps */
+	12537, /* 100Mbps */
+};
+
+static const u32 vsc85xx_egr_latency_macsec[] = {
+	/* Copper Egress ON */
+	3496, /* 1000Mbps */
+	34760, /* 100Mbps */
+	347844, /* 10Mbps */
+	/* Fiber Egress ON */
+	3502, /* 1000Mbps */
+	34780, /* 100Mbps */
+};
+
+static const u32 vsc85xx_ingr_latency[] = {
+	/* Copper Ingress */
+	208, /* 1000Mbps */
+	304, /* 100Mbps */
+	2023, /* 10Mbps */
+	/* Fiber Ingress */
+	98, /* 1000Mbps */
+	197, /* 100Mbps */
+};
+
+static const u32 vsc85xx_ingr_latency_macsec[] = {
+	/* Copper Ingress */
+	2408, /* 1000Mbps */
+	22300, /* 100Mbps */
+	222009, /* 10Mbps */
+	/* Fiber Ingress */
+	2299, /* 1000Mbps */
+	22192, /* 100Mbps */
+};
+
+static void vsc85xx_ts_set_latencies(struct phy_device *phydev)
+{
+	u32 val, ingr_latency, egr_latency;
+	u8 idx;
+
+	/* No need to set latencies of packets if the PHY is not connected */
+	if (!phydev->link)
+		return;
+
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_EGR_STALL_LATENCY,
+			     STALL_EGR_LATENCY(phydev->speed));
+
+	switch (phydev->speed) {
+	case SPEED_100:
+		idx = 1;
+		break;
+	case SPEED_1000:
+		idx = 0;
+		break;
+	default:
+		idx = 2;
+		break;
+	}
+
+	ingr_latency = IS_ENABLED(CONFIG_MACSEC) ?
+		vsc85xx_ingr_latency_macsec[idx] : vsc85xx_ingr_latency[idx];
+	egr_latency = IS_ENABLED(CONFIG_MACSEC) ?
+		vsc85xx_egr_latency_macsec[idx] : vsc85xx_egr_latency[idx];
+
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_INGR_LOCAL_LATENCY,
+			     PTP_INGR_LOCAL_LATENCY(ingr_latency));
+
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR,
+				  MSCC_PHY_PTP_INGR_TSP_CTRL);
+	val |= PHY_PTP_INGR_TSP_CTRL_LOAD_DELAYS;
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_INGR_TSP_CTRL,
+			     val);
+
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_EGR_LOCAL_LATENCY,
+			     PTP_EGR_LOCAL_LATENCY(egr_latency));
+
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR, MSCC_PHY_PTP_EGR_TSP_CTRL);
+	val |= PHY_PTP_EGR_TSP_CTRL_LOAD_DELAYS;
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_EGR_TSP_CTRL, val);
+}
+
+static int vsc85xx_ts_disable_flows(struct phy_device *phydev, enum ts_blk blk)
+{
+	u8 i;
+
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_IP1_NXT_PROT_NXT_COMP, 0);
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_IP1_NXT_PROT_UDP_CHKSUM,
+			     IP1_NXT_PROT_UDP_CHKSUM_WIDTH(2));
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_IP2_NXT_PROT_NXT_COMP, 0);
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_IP2_NXT_PROT_UDP_CHKSUM,
+			     IP2_NXT_PROT_UDP_CHKSUM_WIDTH(2));
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_PHY_ANA_MPLS_COMP_NXT_COMP, 0);
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_PHY_ANA_ETH1_NTX_PROT, 0);
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_PHY_ANA_ETH2_NTX_PROT, 0);
+
+	for (i = 0; i < COMP_MAX_FLOWS; i++) {
+		vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_IP1_FLOW_ENA(i),
+				     IP1_FLOW_VALID_CH0 | IP1_FLOW_VALID_CH1);
+		vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_IP2_FLOW_ENA(i),
+				     IP2_FLOW_VALID_CH0 | IP2_FLOW_VALID_CH1);
+		vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_ETH1_FLOW_ENA(i),
+				     ETH1_FLOW_VALID_CH0 | ETH1_FLOW_VALID_CH1);
+		vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_ETH2_FLOW_ENA(i),
+				     ETH2_FLOW_VALID_CH0 | ETH2_FLOW_VALID_CH1);
+		vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_MPLS_FLOW_CTRL(i),
+				     MPLS_FLOW_VALID_CH0 | MPLS_FLOW_VALID_CH1);
+
+		if (i >= PTP_COMP_MAX_FLOWS)
+			continue;
+
+		vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_PTP_FLOW_ENA(i), 0);
+		vsc85xx_ts_write_csr(phydev, blk,
+				     MSCC_ANA_PTP_FLOW_DOMAIN_RANGE(i), 0);
+		vsc85xx_ts_write_csr(phydev, blk,
+				     MSCC_ANA_PTP_FLOW_MASK_UPPER(i), 0);
+		vsc85xx_ts_write_csr(phydev, blk,
+				     MSCC_ANA_PTP_FLOW_MASK_LOWER(i), 0);
+		vsc85xx_ts_write_csr(phydev, blk,
+				     MSCC_ANA_PTP_FLOW_MATCH_UPPER(i), 0);
+		vsc85xx_ts_write_csr(phydev, blk,
+				     MSCC_ANA_PTP_FLOW_MATCH_LOWER(i), 0);
+		vsc85xx_ts_write_csr(phydev, blk,
+				     MSCC_ANA_PTP_FLOW_PTP_ACTION(i), 0);
+		vsc85xx_ts_write_csr(phydev, blk,
+				     MSCC_ANA_PTP_FLOW_PTP_ACTION2(i), 0);
+		vsc85xx_ts_write_csr(phydev, blk,
+				     MSCC_ANA_PTP_FLOW_PTP_0_FIELD(i), 0);
+		vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_OAM_PTP_FLOW_ENA(i),
+				     0);
+	}
+
+	return 0;
+}
+
+static int vsc85xx_ts_eth_cmp1_sig(struct phy_device *phydev)
+{
+	u32 val;
+
+	val = vsc85xx_ts_read_csr(phydev, EGRESS, MSCC_PHY_ANA_ETH1_NTX_PROT);
+	val &= ~ANA_ETH1_NTX_PROT_SIG_OFF_MASK;
+	val |= ANA_ETH1_NTX_PROT_SIG_OFF(0);
+	vsc85xx_ts_write_csr(phydev, EGRESS, MSCC_PHY_ANA_ETH1_NTX_PROT, val);
+
+	val = vsc85xx_ts_read_csr(phydev, EGRESS, MSCC_PHY_ANA_FSB_CFG);
+	val &= ~ANA_FSB_ADDR_FROM_BLOCK_SEL_MASK;
+	val |= ANA_FSB_ADDR_FROM_ETH1;
+	vsc85xx_ts_write_csr(phydev, EGRESS, MSCC_PHY_ANA_FSB_CFG, val);
+
+	return 0;
+}
+
+static struct vsc85xx_ptphdr *get_ptp_header_l4(struct sk_buff *skb,
+						struct iphdr *iphdr,
+						struct udphdr *udphdr)
+{
+	if (iphdr->version != 4 || iphdr->protocol != IPPROTO_UDP)
+		return NULL;
+
+	return (struct vsc85xx_ptphdr *)(((unsigned char *)udphdr) + UDP_HLEN);
+}
+
+static struct vsc85xx_ptphdr *get_ptp_header_tx(struct sk_buff *skb)
+{
+	struct ethhdr *ethhdr = eth_hdr(skb);
+	struct udphdr *udphdr;
+	struct iphdr *iphdr;
+
+	if (ethhdr->h_proto == htons(ETH_P_1588))
+		return (struct vsc85xx_ptphdr *)(((unsigned char *)ethhdr) +
+						 skb_mac_header_len(skb));
+
+	if (ethhdr->h_proto != htons(ETH_P_IP))
+		return NULL;
+
+	iphdr = ip_hdr(skb);
+	udphdr = udp_hdr(skb);
+
+	return get_ptp_header_l4(skb, iphdr, udphdr);
+}
+
+static struct vsc85xx_ptphdr *get_ptp_header_rx(struct sk_buff *skb,
+						enum hwtstamp_rx_filters rx_filter)
+{
+	struct udphdr *udphdr;
+	struct iphdr *iphdr;
+
+	if (rx_filter == HWTSTAMP_FILTER_PTP_V2_L2_EVENT)
+		return (struct vsc85xx_ptphdr *)skb->data;
+
+	iphdr = (struct iphdr *)skb->data;
+	udphdr = (struct udphdr *)(skb->data + iphdr->ihl * 4);
+
+	return get_ptp_header_l4(skb, iphdr, udphdr);
+}
+
+static int get_sig(struct sk_buff *skb, u8 *sig)
+{
+	struct vsc85xx_ptphdr *ptphdr = get_ptp_header_tx(skb);
+	struct ethhdr *ethhdr = eth_hdr(skb);
+	unsigned int i;
+
+	if (!ptphdr)
+		return -EOPNOTSUPP;
+
+	sig[0] = (__force u16)ptphdr->seq_id >> 8;
+	sig[1] = (__force u16)ptphdr->seq_id & GENMASK(7, 0);
+	sig[2] = ptphdr->domain;
+	sig[3] = ptphdr->tsmt & GENMASK(3, 0);
+
+	memcpy(&sig[4], ethhdr->h_dest, ETH_ALEN);
+
+	/* Fill the last bytes of the signature to reach a 16B signature */
+	for (i = 10; i < 16; i++)
+		sig[i] = ptphdr->tsmt & GENMASK(3, 0);
+
+	return 0;
+}
+
+static void vsc85xx_dequeue_skb(struct vsc85xx_ptp *ptp)
+{
+	struct skb_shared_hwtstamps shhwtstamps;
+	struct vsc85xx_ts_fifo fifo;
+	struct sk_buff *skb;
+	u8 skb_sig[16], *p;
+	int i, len;
+	u32 reg;
+
+	memset(&fifo, 0, sizeof(fifo));
+	p = (u8 *)&fifo;
+
+	reg = vsc85xx_ts_read_csr(ptp->phydev, PROCESSOR,
+				  MSCC_PHY_PTP_EGR_TS_FIFO(0));
+	if (reg & PTP_EGR_TS_FIFO_EMPTY)
+		return;
+
+	*p++ = reg & 0xff;
+	*p++ = (reg >> 8) & 0xff;
+
+	/* Read the current FIFO item. Reading FIFO6 pops the next one. */
+	for (i = 1; i < 7; i++) {
+		reg = vsc85xx_ts_read_csr(ptp->phydev, PROCESSOR,
+					  MSCC_PHY_PTP_EGR_TS_FIFO(i));
+		*p++ = reg & 0xff;
+		*p++ = (reg >> 8) & 0xff;
+		*p++ = (reg >> 16) & 0xff;
+		*p++ = (reg >> 24) & 0xff;
+	}
+
+	len = skb_queue_len(&ptp->tx_queue);
+	if (len < 1)
+		return;
+
+	while (len--) {
+		skb = __skb_dequeue(&ptp->tx_queue);
+		if (!skb)
+			return;
+
+		/* Can't get the signature of the packet, won't ever
+		 * be able to have one so let's dequeue the packet.
+		 */
+		if (get_sig(skb, skb_sig) < 0) {
+			kfree_skb(skb);
+			continue;
+		}
+
+		/* Check if we found the signature we were looking for. */
+		if (!memcmp(skb_sig, fifo.sig, sizeof(fifo.sig))) {
+			memset(&shhwtstamps, 0, sizeof(shhwtstamps));
+			shhwtstamps.hwtstamp = ktime_set(fifo.secs, fifo.ns);
+			skb_complete_tx_timestamp(skb, &shhwtstamps);
+
+			return;
+		}
+
+		/* Valid signature but does not match the one of the
+		 * packet in the FIFO right now, reschedule it for later
+		 * packets.
+		 */
+		__skb_queue_tail(&ptp->tx_queue, skb);
+	}
+}
+
+static void vsc85xx_get_tx_ts(struct vsc85xx_ptp *ptp)
+{
+	u32 reg;
+
+	do {
+		vsc85xx_dequeue_skb(ptp);
+
+		/* If other timestamps are available in the FIFO, process them. */
+		reg = vsc85xx_ts_read_csr(ptp->phydev, PROCESSOR,
+					  MSCC_PHY_PTP_EGR_TS_FIFO_CTRL);
+	} while (PTP_EGR_FIFO_LEVEL_LAST_READ(reg) > 1);
+}
+
+static int vsc85xx_ptp_cmp_init(struct phy_device *phydev, enum ts_blk blk)
+{
+	struct vsc8531_private *vsc8531 = phydev->priv;
+	bool base = phydev->mdio.addr == vsc8531->ts_base_addr;
+	static const u8 msgs[] = {
+		PTP_MSGTYPE_SYNC,
+		PTP_MSGTYPE_DELAY_REQ
+	};
+	u32 val;
+	u8 i;
+
+	for (i = 0; i < ARRAY_SIZE(msgs); i++) {
+		vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_PTP_FLOW_ENA(i),
+				     base ? PTP_FLOW_VALID_CH0 :
+				     PTP_FLOW_VALID_CH1);
+
+		val = vsc85xx_ts_read_csr(phydev, blk,
+					  MSCC_ANA_PTP_FLOW_DOMAIN_RANGE(i));
+		val &= ~PTP_FLOW_DOMAIN_RANGE_ENA;
+		vsc85xx_ts_write_csr(phydev, blk,
+				     MSCC_ANA_PTP_FLOW_DOMAIN_RANGE(i), val);
+
+		vsc85xx_ts_write_csr(phydev, blk,
+				     MSCC_ANA_PTP_FLOW_MATCH_UPPER(i),
+				     msgs[i] << 24);
+
+		vsc85xx_ts_write_csr(phydev, blk,
+				     MSCC_ANA_PTP_FLOW_MASK_UPPER(i),
+				     PTP_FLOW_MSG_TYPE_MASK);
+	}
+
+	return 0;
+}
+
+static int vsc85xx_eth_cmp1_init(struct phy_device *phydev, enum ts_blk blk)
+{
+	struct vsc8531_private *vsc8531 = phydev->priv;
+	bool base = phydev->mdio.addr == vsc8531->ts_base_addr;
+	u32 val;
+
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_PHY_ANA_ETH1_NXT_PROT_TAG, 0);
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_PHY_ANA_ETH1_NTX_PROT_VLAN_TPID,
+			     ANA_ETH1_NTX_PROT_VLAN_TPID(ETH_P_8021AD));
+
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_ETH1_FLOW_ENA(0),
+			     base ? ETH1_FLOW_VALID_CH0 : ETH1_FLOW_VALID_CH1);
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_ETH1_FLOW_MATCH_MODE(0),
+			     ANA_ETH1_FLOW_MATCH_VLAN_TAG2);
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_ETH1_FLOW_ADDR_MATCH1(0), 0);
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_ETH1_FLOW_ADDR_MATCH2(0), 0);
+	vsc85xx_ts_write_csr(phydev, blk,
+			     MSCC_ANA_ETH1_FLOW_VLAN_RANGE_I_TAG(0), 0);
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_ETH1_FLOW_VLAN_TAG1(0), 0);
+	vsc85xx_ts_write_csr(phydev, blk,
+			     MSCC_ANA_ETH1_FLOW_VLAN_TAG2_I_TAG(0), 0);
+
+	val = vsc85xx_ts_read_csr(phydev, blk,
+				  MSCC_ANA_ETH1_FLOW_MATCH_MODE(0));
+	val &= ~ANA_ETH1_FLOW_MATCH_VLAN_TAG_MASK;
+	val |= ANA_ETH1_FLOW_MATCH_VLAN_VERIFY;
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_ETH1_FLOW_MATCH_MODE(0),
+			     val);
+
+	return 0;
+}
+
+static int vsc85xx_ip_cmp1_init(struct phy_device *phydev, enum ts_blk blk)
+{
+	struct vsc8531_private *vsc8531 = phydev->priv;
+	bool base = phydev->mdio.addr == vsc8531->ts_base_addr;
+	u32 val;
+
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_IP1_NXT_PROT_MATCH2_UPPER,
+			     PTP_EV_PORT);
+	/* Match on dest port only, ignore src */
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_IP1_NXT_PROT_MASK2_UPPER,
+			     0xffff);
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_IP1_NXT_PROT_MATCH2_LOWER,
+			     0);
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_IP1_NXT_PROT_MASK2_LOWER, 0);
+
+	val = vsc85xx_ts_read_csr(phydev, blk, MSCC_ANA_IP1_FLOW_ENA(0));
+	val &= ~IP1_FLOW_ENA_CHANNEL_MASK_MASK;
+	val |= base ? IP1_FLOW_VALID_CH0 : IP1_FLOW_VALID_CH1;
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_IP1_FLOW_ENA(0), val);
+
+	/* Match all IPs */
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_IP1_FLOW_MATCH_UPPER(0), 0);
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_IP1_FLOW_MASK_UPPER(0), 0);
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_IP1_FLOW_MATCH_UPPER_MID(0),
+			     0);
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_IP1_FLOW_MASK_UPPER_MID(0),
+			     0);
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_IP1_FLOW_MATCH_LOWER_MID(0),
+			     0);
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_IP1_FLOW_MASK_LOWER_MID(0),
+			     0);
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_IP1_FLOW_MATCH_LOWER(0), 0);
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_IP1_FLOW_MASK_LOWER(0), 0);
+
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_PTP_IP_CHKSUM_SEL, 0);
+
+	return 0;
+}
+
+static int vsc85xx_adjfine(struct ptp_clock_info *info, long scaled_ppm)
+{
+	struct vsc85xx_ptp *ptp = container_of(info, struct vsc85xx_ptp, caps);
+	struct phy_device *phydev = ptp->phydev;
+	struct vsc8531_private *priv = phydev->priv;
+	u64 adj = 0;
+	u32 val;
+
+	if (abs(scaled_ppm) < 66 || abs(scaled_ppm) > 65536UL * 1000000UL)
+		return 0;
+
+	adj = div64_u64(1000000ULL * 65536ULL, abs(scaled_ppm));
+	if (adj > 1000000000L)
+		adj = 1000000000L;
+
+	val = PTP_AUTO_ADJ_NS_ROLLOVER(adj);
+	val |= scaled_ppm > 0 ? PTP_AUTO_ADJ_ADD_1NS : PTP_AUTO_ADJ_SUB_1NS;
+
+	mutex_lock(&priv->phc_lock);
+
+	/* Update the ppb val in nano seconds to the auto adjust reg. */
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_LTC_AUTO_ADJ,
+			     val);
+
+	/* The auto adjust update val is set to 0 after write operation. */
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR, MSCC_PHY_PTP_LTC_CTRL);
+	val |= PTP_LTC_CTRL_AUTO_ADJ_UPDATE;
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_LTC_CTRL, val);
+
+	mutex_unlock(&priv->phc_lock);
+
+	return 0;
+}
+
+static int __vsc85xx_gettime(struct ptp_clock_info *info, struct timespec64 *ts)
+{
+	struct vsc85xx_ptp *ptp = container_of(info, struct vsc85xx_ptp, caps);
+	struct phy_device *phydev = ptp->phydev;
+	struct vsc85xx_shared_private *shared =
+		(struct vsc85xx_shared_private *)phydev->shared->priv;
+	struct vsc8531_private *priv = phydev->priv;
+	u32 val;
+
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR, MSCC_PHY_PTP_LTC_CTRL);
+	val |= PTP_LTC_CTRL_SAVE_ENA;
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_LTC_CTRL, val);
+
+	/* Local Time Counter (LTC) is put in SAVE* regs on rising edge of
+	 * LOAD_SAVE pin.
+	 */
+	mutex_lock(&shared->gpio_lock);
+	gpiod_set_value(priv->load_save, 1);
+
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR,
+				  MSCC_PHY_PTP_LTC_SAVED_SEC_MSB);
+
+	ts->tv_sec = ((time64_t)val) << 32;
+
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR,
+				  MSCC_PHY_PTP_LTC_SAVED_SEC_LSB);
+	ts->tv_sec += val;
+
+	ts->tv_nsec = vsc85xx_ts_read_csr(phydev, PROCESSOR,
+					  MSCC_PHY_PTP_LTC_SAVED_NS);
+
+	gpiod_set_value(priv->load_save, 0);
+	mutex_unlock(&shared->gpio_lock);
+
+	return 0;
+}
+
+static int vsc85xx_gettime(struct ptp_clock_info *info, struct timespec64 *ts)
+{
+	struct vsc85xx_ptp *ptp = container_of(info, struct vsc85xx_ptp, caps);
+	struct phy_device *phydev = ptp->phydev;
+	struct vsc8531_private *priv = phydev->priv;
+
+	mutex_lock(&priv->phc_lock);
+	__vsc85xx_gettime(info, ts);
+	mutex_unlock(&priv->phc_lock);
+
+	return 0;
+}
+
+static int __vsc85xx_settime(struct ptp_clock_info *info,
+			     const struct timespec64 *ts)
+{
+	struct vsc85xx_ptp *ptp = container_of(info, struct vsc85xx_ptp, caps);
+	struct phy_device *phydev = ptp->phydev;
+	struct vsc85xx_shared_private *shared =
+		(struct vsc85xx_shared_private *)phydev->shared->priv;
+	struct vsc8531_private *priv = phydev->priv;
+	u32 val;
+
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_LTC_LOAD_SEC_MSB,
+			     PTP_LTC_LOAD_SEC_MSB(ts->tv_sec));
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_LTC_LOAD_SEC_LSB,
+			     PTP_LTC_LOAD_SEC_LSB(ts->tv_sec));
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_LTC_LOAD_NS,
+			     PTP_LTC_LOAD_NS(ts->tv_nsec));
+
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR, MSCC_PHY_PTP_LTC_CTRL);
+	val |= PTP_LTC_CTRL_LOAD_ENA;
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_LTC_CTRL, val);
+
+	/* Local Time Counter (LTC) is set from LOAD* regs on rising edge of
+	 * LOAD_SAVE pin.
+	 */
+	mutex_lock(&shared->gpio_lock);
+	gpiod_set_value(priv->load_save, 1);
+
+	val &= ~PTP_LTC_CTRL_LOAD_ENA;
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_LTC_CTRL, val);
+
+	gpiod_set_value(priv->load_save, 0);
+	mutex_unlock(&shared->gpio_lock);
+
+	return 0;
+}
+
+static int vsc85xx_settime(struct ptp_clock_info *info,
+			   const struct timespec64 *ts)
+{
+	struct vsc85xx_ptp *ptp = container_of(info, struct vsc85xx_ptp, caps);
+	struct phy_device *phydev = ptp->phydev;
+	struct vsc8531_private *priv = phydev->priv;
+
+	mutex_lock(&priv->phc_lock);
+	__vsc85xx_settime(info, ts);
+	mutex_unlock(&priv->phc_lock);
+
+	return 0;
+}
+
+static int vsc85xx_adjtime(struct ptp_clock_info *info, s64 delta)
+{
+	struct vsc85xx_ptp *ptp = container_of(info, struct vsc85xx_ptp, caps);
+	struct phy_device *phydev = ptp->phydev;
+	struct vsc8531_private *priv = phydev->priv;
+	u32 val;
+
+	/* Can't recover that big of an offset. Let's set the time directly. */
+	if (abs(delta) >= NSEC_PER_SEC) {
+		struct timespec64 ts;
+		u64 now;
+
+		mutex_lock(&priv->phc_lock);
+
+		__vsc85xx_gettime(info, &ts);
+		now = ktime_to_ns(timespec64_to_ktime(ts));
+		ts = ns_to_timespec64(now + delta);
+		__vsc85xx_settime(info, &ts);
+
+		mutex_unlock(&priv->phc_lock);
+
+		return 0;
+	}
+
+	mutex_lock(&priv->phc_lock);
+
+	val = PTP_LTC_OFFSET_VAL(abs(delta)) | PTP_LTC_OFFSET_ADJ;
+	if (delta > 0)
+		val |= PTP_LTC_OFFSET_ADD;
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_LTC_OFFSET, val);
+
+	mutex_unlock(&priv->phc_lock);
+
+	return 0;
+}
+
+static int vsc85xx_eth1_next_comp(struct phy_device *phydev, enum ts_blk blk,
+				  u32 next_comp, u32 etype)
+{
+	u32 val;
+
+	val = vsc85xx_ts_read_csr(phydev, blk, MSCC_PHY_ANA_ETH1_NTX_PROT);
+	val &= ~ANA_ETH1_NTX_PROT_COMPARATOR_MASK;
+	val |= next_comp;
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_PHY_ANA_ETH1_NTX_PROT, val);
+
+	val = ANA_ETH1_NXT_PROT_ETYPE_MATCH(etype) |
+		ANA_ETH1_NXT_PROT_ETYPE_MATCH_ENA;
+	vsc85xx_ts_write_csr(phydev, blk,
+			     MSCC_PHY_ANA_ETH1_NXT_PROT_ETYPE_MATCH, val);
+
+	return 0;
+}
+
+static int vsc85xx_ip1_next_comp(struct phy_device *phydev, enum ts_blk blk,
+				 u32 next_comp, u32 header)
+{
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_IP1_NXT_PROT_NXT_COMP,
+			     ANA_IP1_NXT_PROT_NXT_COMP_BYTES_HDR(header) |
+			     next_comp);
+
+	return 0;
+}
+
+static int vsc85xx_ts_ptp_action_flow(struct phy_device *phydev, enum ts_blk blk, u8 flow, enum ptp_cmd cmd)
+{
+	u32 val;
+
+	/* Check non-zero reserved field */
+	val = PTP_FLOW_PTP_0_FIELD_PTP_FRAME | PTP_FLOW_PTP_0_FIELD_RSVRD_CHECK;
+	vsc85xx_ts_write_csr(phydev, blk,
+			     MSCC_ANA_PTP_FLOW_PTP_0_FIELD(flow), val);
+
+	val = PTP_FLOW_PTP_ACTION_CORR_OFFSET(8) |
+	      PTP_FLOW_PTP_ACTION_TIME_OFFSET(8) |
+	      PTP_FLOW_PTP_ACTION_PTP_CMD(cmd == PTP_SAVE_IN_TS_FIFO ?
+					  PTP_NOP : cmd);
+	if (cmd == PTP_SAVE_IN_TS_FIFO)
+		val |= PTP_FLOW_PTP_ACTION_SAVE_LOCAL_TIME;
+	else if (cmd == PTP_WRITE_NS)
+		val |= PTP_FLOW_PTP_ACTION_MOD_FRAME_STATUS_UPDATE |
+		       PTP_FLOW_PTP_ACTION_MOD_FRAME_STATUS_BYTE_OFFSET(6);
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_PTP_FLOW_PTP_ACTION(flow),
+			     val);
+
+	if (cmd == PTP_WRITE_1588)
+		/* Rewrite timestamp directly in frame */
+		val = PTP_FLOW_PTP_ACTION2_REWRITE_OFFSET(34) |
+		      PTP_FLOW_PTP_ACTION2_REWRITE_BYTES(10);
+	else if (cmd == PTP_SAVE_IN_TS_FIFO)
+		/* no rewrite */
+		val = PTP_FLOW_PTP_ACTION2_REWRITE_OFFSET(0) |
+		      PTP_FLOW_PTP_ACTION2_REWRITE_BYTES(0);
+	else
+		/* Write in reserved field */
+		val = PTP_FLOW_PTP_ACTION2_REWRITE_OFFSET(16) |
+		      PTP_FLOW_PTP_ACTION2_REWRITE_BYTES(4);
+	vsc85xx_ts_write_csr(phydev, blk,
+			     MSCC_ANA_PTP_FLOW_PTP_ACTION2(flow), val);
+
+	return 0;
+}
+
+static int vsc85xx_ptp_conf(struct phy_device *phydev, enum ts_blk blk,
+			    bool one_step, bool enable)
+{
+	static const u8 msgs[] = {
+		PTP_MSGTYPE_SYNC,
+		PTP_MSGTYPE_DELAY_REQ
+	};
+	u32 val;
+	u8 i;
+
+	for (i = 0; i < ARRAY_SIZE(msgs); i++) {
+		if (blk == INGRESS)
+			vsc85xx_ts_ptp_action_flow(phydev, blk, msgs[i],
+						   PTP_WRITE_NS);
+		else if (msgs[i] == PTP_MSGTYPE_SYNC && one_step)
+			/* no need to know Sync t when sending in one_step */
+			vsc85xx_ts_ptp_action_flow(phydev, blk, msgs[i],
+						   PTP_WRITE_1588);
+		else
+			vsc85xx_ts_ptp_action_flow(phydev, blk, msgs[i],
+						   PTP_SAVE_IN_TS_FIFO);
+
+		val = vsc85xx_ts_read_csr(phydev, blk,
+					  MSCC_ANA_PTP_FLOW_ENA(i));
+		val &= ~PTP_FLOW_ENA;
+		if (enable)
+			val |= PTP_FLOW_ENA;
+		vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_PTP_FLOW_ENA(i),
+				     val);
+	}
+
+	return 0;
+}
+
+static int vsc85xx_eth1_conf(struct phy_device *phydev, enum ts_blk blk,
+			     bool enable)
+{
+	struct vsc8531_private *vsc8531 = phydev->priv;
+	u32 val = ANA_ETH1_FLOW_ADDR_MATCH2_DEST;
+
+	if (vsc8531->ptp->rx_filter == HWTSTAMP_FILTER_PTP_V2_L2_EVENT) {
+		/* PTP over Ethernet multicast address for SYNC and DELAY msg */
+		u8 ptp_multicast[6] = {0x01, 0x1b, 0x19, 0x00, 0x00, 0x00};
+
+		val |= ANA_ETH1_FLOW_ADDR_MATCH2_FULL_ADDR |
+		       get_unaligned_be16(&ptp_multicast[4]);
+		vsc85xx_ts_write_csr(phydev, blk,
+				     MSCC_ANA_ETH1_FLOW_ADDR_MATCH2(0), val);
+		vsc85xx_ts_write_csr(phydev, blk,
+				     MSCC_ANA_ETH1_FLOW_ADDR_MATCH1(0),
+				     get_unaligned_be32(ptp_multicast));
+	} else {
+		val |= ANA_ETH1_FLOW_ADDR_MATCH2_ANY_MULTICAST;
+		vsc85xx_ts_write_csr(phydev, blk,
+				     MSCC_ANA_ETH1_FLOW_ADDR_MATCH2(0), val);
+		vsc85xx_ts_write_csr(phydev, blk,
+				     MSCC_ANA_ETH1_FLOW_ADDR_MATCH1(0), 0);
+	}
+
+	val = vsc85xx_ts_read_csr(phydev, blk, MSCC_ANA_ETH1_FLOW_ENA(0));
+	val &= ~ETH1_FLOW_ENA;
+	if (enable)
+		val |= ETH1_FLOW_ENA;
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_ETH1_FLOW_ENA(0), val);
+
+	return 0;
+}
+
+static int vsc85xx_ip1_conf(struct phy_device *phydev, enum ts_blk blk,
+			    bool enable)
+{
+	u32 val;
+
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_IP1_NXT_PROT_IP1_MODE,
+			     ANA_IP1_NXT_PROT_IPV4 |
+			     ANA_IP1_NXT_PROT_FLOW_OFFSET_IPV4);
+
+	/* Matching UDP protocol number */
+	val = ANA_IP1_NXT_PROT_IP_MATCH1_PROT_MASK(0xff) |
+	      ANA_IP1_NXT_PROT_IP_MATCH1_PROT_MATCH(IPPROTO_UDP) |
+	      ANA_IP1_NXT_PROT_IP_MATCH1_PROT_OFF(9);
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_IP1_NXT_PROT_IP_MATCH1,
+			     val);
+
+	/* End of IP protocol, start of next protocol (UDP) */
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_IP1_NXT_PROT_OFFSET2,
+			     ANA_IP1_NXT_PROT_OFFSET2(20));
+
+	val = vsc85xx_ts_read_csr(phydev, blk,
+				  MSCC_ANA_IP1_NXT_PROT_UDP_CHKSUM);
+	val &= ~(IP1_NXT_PROT_UDP_CHKSUM_OFF_MASK |
+		 IP1_NXT_PROT_UDP_CHKSUM_WIDTH_MASK);
+	val |= IP1_NXT_PROT_UDP_CHKSUM_WIDTH(2);
+
+	val &= ~(IP1_NXT_PROT_UDP_CHKSUM_UPDATE |
+		 IP1_NXT_PROT_UDP_CHKSUM_CLEAR);
+	/* UDP checksum offset in IPv4 packet
+	 * according to: https://tools.ietf.org/html/rfc768
+	 */
+	val |= IP1_NXT_PROT_UDP_CHKSUM_OFF(26) | IP1_NXT_PROT_UDP_CHKSUM_CLEAR;
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_IP1_NXT_PROT_UDP_CHKSUM,
+			     val);
+
+	val = vsc85xx_ts_read_csr(phydev, blk, MSCC_ANA_IP1_FLOW_ENA(0));
+	val &= ~(IP1_FLOW_MATCH_ADDR_MASK | IP1_FLOW_ENA);
+	val |= IP1_FLOW_MATCH_DEST_SRC_ADDR;
+	if (enable)
+		val |= IP1_FLOW_ENA;
+	vsc85xx_ts_write_csr(phydev, blk, MSCC_ANA_IP1_FLOW_ENA(0), val);
+
+	return 0;
+}
+
+static int vsc85xx_ts_engine_init(struct phy_device *phydev, bool one_step)
+{
+	struct vsc8531_private *vsc8531 = phydev->priv;
+	bool ptp_l4, base = phydev->mdio.addr == vsc8531->ts_base_addr;
+	u8 eng_id = base ? 0 : 1;
+	u32 val;
+
+	ptp_l4 = vsc8531->ptp->rx_filter == HWTSTAMP_FILTER_PTP_V2_L4_EVENT;
+
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR,
+				  MSCC_PHY_PTP_ANALYZER_MODE);
+	/* Disable INGRESS and EGRESS so engine eng_id can be reconfigured */
+	val &= ~(PTP_ANALYZER_MODE_EGR_ENA(BIT(eng_id)) |
+		 PTP_ANALYZER_MODE_INGR_ENA(BIT(eng_id)));
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_ANALYZER_MODE,
+			     val);
+
+	if (vsc8531->ptp->rx_filter == HWTSTAMP_FILTER_PTP_V2_L2_EVENT) {
+		vsc85xx_eth1_next_comp(phydev, INGRESS,
+				       ANA_ETH1_NTX_PROT_PTP_OAM, ETH_P_1588);
+		vsc85xx_eth1_next_comp(phydev, EGRESS,
+				       ANA_ETH1_NTX_PROT_PTP_OAM, ETH_P_1588);
+	} else {
+		vsc85xx_eth1_next_comp(phydev, INGRESS,
+				       ANA_ETH1_NTX_PROT_IP_UDP_ACH_1,
+				       ETH_P_IP);
+		vsc85xx_eth1_next_comp(phydev, EGRESS,
+				       ANA_ETH1_NTX_PROT_IP_UDP_ACH_1,
+				       ETH_P_IP);
+		/* Header length of IPv[4/6] + UDP */
+		vsc85xx_ip1_next_comp(phydev, INGRESS,
+				      ANA_ETH1_NTX_PROT_PTP_OAM, 28);
+		vsc85xx_ip1_next_comp(phydev, EGRESS,
+				      ANA_ETH1_NTX_PROT_PTP_OAM, 28);
+	}
+
+	vsc85xx_eth1_conf(phydev, INGRESS,
+			  vsc8531->ptp->rx_filter != HWTSTAMP_FILTER_NONE);
+	vsc85xx_ip1_conf(phydev, INGRESS,
+			 ptp_l4 && vsc8531->ptp->rx_filter != HWTSTAMP_FILTER_NONE);
+	vsc85xx_ptp_conf(phydev, INGRESS, one_step,
+			 vsc8531->ptp->rx_filter != HWTSTAMP_FILTER_NONE);
+
+	vsc85xx_eth1_conf(phydev, EGRESS,
+			  vsc8531->ptp->tx_type != HWTSTAMP_TX_OFF);
+	vsc85xx_ip1_conf(phydev, EGRESS,
+			 ptp_l4 && vsc8531->ptp->tx_type != HWTSTAMP_TX_OFF);
+	vsc85xx_ptp_conf(phydev, EGRESS, one_step,
+			 vsc8531->ptp->tx_type != HWTSTAMP_TX_OFF);
+
+	val &= ~PTP_ANALYZER_MODE_EGR_ENA(BIT(eng_id));
+	if (vsc8531->ptp->tx_type != HWTSTAMP_TX_OFF)
+		val |= PTP_ANALYZER_MODE_EGR_ENA(BIT(eng_id));
+
+	val &= ~PTP_ANALYZER_MODE_INGR_ENA(BIT(eng_id));
+	if (vsc8531->ptp->rx_filter != HWTSTAMP_FILTER_NONE)
+		val |= PTP_ANALYZER_MODE_INGR_ENA(BIT(eng_id));
+
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_ANALYZER_MODE,
+			     val);
+
+	return 0;
+}
+
+void vsc85xx_link_change_notify(struct phy_device *phydev)
+{
+	struct vsc8531_private *priv = phydev->priv;
+
+	mutex_lock(&priv->ts_lock);
+	vsc85xx_ts_set_latencies(phydev);
+	mutex_unlock(&priv->ts_lock);
+}
+
+static void vsc85xx_ts_reset_fifo(struct phy_device *phydev)
+{
+	u32 val;
+
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR,
+				  MSCC_PHY_PTP_EGR_TS_FIFO_CTRL);
+	val |= PTP_EGR_TS_FIFO_RESET;
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_EGR_TS_FIFO_CTRL,
+			     val);
+
+	val &= ~PTP_EGR_TS_FIFO_RESET;
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_EGR_TS_FIFO_CTRL,
+			     val);
+}
+
+static int vsc85xx_hwtstamp(struct mii_timestamper *mii_ts, struct ifreq *ifr)
+{
+	struct vsc8531_private *vsc8531 =
+		container_of(mii_ts, struct vsc8531_private, mii_ts);
+	struct phy_device *phydev = vsc8531->ptp->phydev;
+	struct hwtstamp_config cfg;
+	bool one_step = false;
+	u32 val;
+
+	if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
+		return -EFAULT;
+
+	switch (cfg.tx_type) {
+	case HWTSTAMP_TX_ONESTEP_SYNC:
+		one_step = true;
+		break;
+	case HWTSTAMP_TX_ON:
+		break;
+	case HWTSTAMP_TX_OFF:
+		break;
+	default:
+		return -ERANGE;
+	}
+
+	vsc8531->ptp->tx_type = cfg.tx_type;
+
+	switch (cfg.rx_filter) {
+	case HWTSTAMP_FILTER_NONE:
+		break;
+	case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
+		/* ETH->IP->UDP->PTP */
+		break;
+	case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
+		/* ETH->PTP */
+		break;
+	default:
+		return -ERANGE;
+	}
+
+	vsc8531->ptp->rx_filter = cfg.rx_filter;
+
+	mutex_lock(&vsc8531->ts_lock);
+
+	__skb_queue_purge(&vsc8531->ptp->tx_queue);
+	__skb_queue_head_init(&vsc8531->ptp->tx_queue);
+
+	/* Disable predictor while configuring the 1588 block */
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR,
+				  MSCC_PHY_PTP_INGR_PREDICTOR);
+	val &= ~PTP_INGR_PREDICTOR_EN;
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_INGR_PREDICTOR,
+			     val);
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR,
+				  MSCC_PHY_PTP_EGR_PREDICTOR);
+	val &= ~PTP_EGR_PREDICTOR_EN;
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_EGR_PREDICTOR,
+			     val);
+
+	/* Bypass egress or ingress blocks if timestamping isn't used */
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR, MSCC_PHY_PTP_IFACE_CTRL);
+	val &= ~(PTP_IFACE_CTRL_EGR_BYPASS | PTP_IFACE_CTRL_INGR_BYPASS);
+	if (vsc8531->ptp->tx_type == HWTSTAMP_TX_OFF)
+		val |= PTP_IFACE_CTRL_EGR_BYPASS;
+	if (vsc8531->ptp->rx_filter == HWTSTAMP_FILTER_NONE)
+		val |= PTP_IFACE_CTRL_INGR_BYPASS;
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_IFACE_CTRL, val);
+
+	/* Resetting FIFO so that it's empty after reconfiguration */
+	vsc85xx_ts_reset_fifo(phydev);
+
+	vsc85xx_ts_engine_init(phydev, one_step);
+
+	/* Re-enable predictors now */
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR,
+				  MSCC_PHY_PTP_INGR_PREDICTOR);
+	val |= PTP_INGR_PREDICTOR_EN;
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_INGR_PREDICTOR,
+			     val);
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR,
+				  MSCC_PHY_PTP_EGR_PREDICTOR);
+	val |= PTP_EGR_PREDICTOR_EN;
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_EGR_PREDICTOR,
+			     val);
+
+	vsc8531->ptp->configured = 1;
+	mutex_unlock(&vsc8531->ts_lock);
+
+	return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0;
+}
+
+static int vsc85xx_ts_info(struct mii_timestamper *mii_ts,
+			   struct ethtool_ts_info *info)
+{
+	struct vsc8531_private *vsc8531 =
+		container_of(mii_ts, struct vsc8531_private, mii_ts);
+
+	info->phc_index = ptp_clock_index(vsc8531->ptp->ptp_clock);
+	info->so_timestamping =
+		SOF_TIMESTAMPING_TX_HARDWARE |
+		SOF_TIMESTAMPING_RX_HARDWARE |
+		SOF_TIMESTAMPING_RAW_HARDWARE;
+	info->tx_types =
+		(1 << HWTSTAMP_TX_OFF) |
+		(1 << HWTSTAMP_TX_ON) |
+		(1 << HWTSTAMP_TX_ONESTEP_SYNC);
+	info->rx_filters =
+		(1 << HWTSTAMP_FILTER_NONE) |
+		(1 << HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |
+		(1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT);
+
+	return 0;
+}
+
+static void vsc85xx_txtstamp(struct mii_timestamper *mii_ts,
+			     struct sk_buff *skb, int type)
+{
+	struct vsc8531_private *vsc8531 =
+		container_of(mii_ts, struct vsc8531_private, mii_ts);
+
+	if (!vsc8531->ptp->configured)
+		return;
+
+	if (vsc8531->ptp->tx_type == HWTSTAMP_TX_OFF) {
+		kfree_skb(skb);
+		return;
+	}
+
+	skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
+
+	mutex_lock(&vsc8531->ts_lock);
+	__skb_queue_tail(&vsc8531->ptp->tx_queue, skb);
+	mutex_unlock(&vsc8531->ts_lock);
+}
+
+static bool vsc85xx_rxtstamp(struct mii_timestamper *mii_ts,
+			     struct sk_buff *skb, int type)
+{
+	struct vsc8531_private *vsc8531 =
+		container_of(mii_ts, struct vsc8531_private, mii_ts);
+	struct skb_shared_hwtstamps *shhwtstamps = NULL;
+	struct vsc85xx_ptphdr *ptphdr;
+	struct timespec64 ts;
+	unsigned long ns;
+
+	if (!vsc8531->ptp->configured)
+		return false;
+
+	if (vsc8531->ptp->rx_filter == HWTSTAMP_FILTER_NONE ||
+	    type == PTP_CLASS_NONE)
+		return false;
+
+	vsc85xx_gettime(&vsc8531->ptp->caps, &ts);
+
+	ptphdr = get_ptp_header_rx(skb, vsc8531->ptp->rx_filter);
+	if (!ptphdr)
+		return false;
+
+	shhwtstamps = skb_hwtstamps(skb);
+	memset(shhwtstamps, 0, sizeof(struct skb_shared_hwtstamps));
+
+	ns = ntohl(ptphdr->rsrvd2);
+
+	/* nsec is in reserved field */
+	if (ts.tv_nsec < ns)
+		ts.tv_sec--;
+
+	shhwtstamps->hwtstamp = ktime_set(ts.tv_sec, ns);
+	netif_rx(skb);
+
+	return true;
+}
+
+static const struct ptp_clock_info vsc85xx_clk_caps = {
+	.owner		= THIS_MODULE,
+	.name		= "VSC85xx timer",
+	.max_adj	= S32_MAX,
+	.n_alarm	= 0,
+	.n_pins		= 0,
+	.n_ext_ts	= 0,
+	.n_per_out	= 0,
+	.pps		= 0,
+	.adjtime        = &vsc85xx_adjtime,
+	.adjfine	= &vsc85xx_adjfine,
+	.gettime64	= &vsc85xx_gettime,
+	.settime64	= &vsc85xx_settime,
+};
+
+static struct vsc8531_private *vsc8584_base_priv(struct phy_device *phydev)
+{
+	struct vsc8531_private *vsc8531 = phydev->priv;
+
+	if (vsc8531->ts_base_addr != phydev->mdio.addr) {
+		struct mdio_device *dev;
+
+		dev = phydev->mdio.bus->mdio_map[vsc8531->ts_base_addr];
+		phydev = container_of(dev, struct phy_device, mdio);
+
+		return phydev->priv;
+	}
+
+	return vsc8531;
+}
+
+static bool vsc8584_is_1588_input_clk_configured(struct phy_device *phydev)
+{
+	struct vsc8531_private *vsc8531 = vsc8584_base_priv(phydev);
+
+	return vsc8531->input_clk_init;
+}
+
+static void vsc8584_set_input_clk_configured(struct phy_device *phydev)
+{
+	struct vsc8531_private *vsc8531 = vsc8584_base_priv(phydev);
+
+	vsc8531->input_clk_init = true;
+}
+
+static int __vsc8584_init_ptp(struct phy_device *phydev)
+{
+	struct vsc8531_private *vsc8531 = phydev->priv;
+	static const u32 ltc_seq_e[] = { 0, 400000, 0, 0, 0 };
+	static const u8  ltc_seq_a[] = { 8, 6, 5, 4, 2 };
+	u32 val;
+
+	if (!vsc8584_is_1588_input_clk_configured(phydev)) {
+		phy_lock_mdio_bus(phydev);
+
+		/* 1588_DIFF_INPUT_CLK configuration: Use an external clock for
+		 * the LTC, as per 3.13.29 in the VSC8584 datasheet.
+		 */
+		phy_ts_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
+				  MSCC_PHY_PAGE_1588);
+		phy_ts_base_write(phydev, 29, 0x7ae0);
+		phy_ts_base_write(phydev, 30, 0xb71c);
+		phy_ts_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
+				  MSCC_PHY_PAGE_STANDARD);
+
+		phy_unlock_mdio_bus(phydev);
+
+		vsc8584_set_input_clk_configured(phydev);
+	}
+
+	/* Disable predictor before configuring the 1588 block */
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR,
+				  MSCC_PHY_PTP_INGR_PREDICTOR);
+	val &= ~PTP_INGR_PREDICTOR_EN;
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_INGR_PREDICTOR,
+			     val);
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR,
+				  MSCC_PHY_PTP_EGR_PREDICTOR);
+	val &= ~PTP_EGR_PREDICTOR_EN;
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_EGR_PREDICTOR,
+			     val);
+
+	/* By default, the internal clock of fixed rate 250MHz is used */
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR, MSCC_PHY_PTP_LTC_CTRL);
+	val &= ~PTP_LTC_CTRL_CLK_SEL_MASK;
+	val |= PTP_LTC_CTRL_CLK_SEL_INTERNAL_250;
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_LTC_CTRL, val);
+
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR, MSCC_PHY_PTP_LTC_SEQUENCE);
+	val &= ~PTP_LTC_SEQUENCE_A_MASK;
+	val |= PTP_LTC_SEQUENCE_A(ltc_seq_a[PHC_CLK_250MHZ]);
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_LTC_SEQUENCE, val);
+
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR, MSCC_PHY_PTP_LTC_SEQ);
+	val &= ~(PTP_LTC_SEQ_ERR_MASK | PTP_LTC_SEQ_ADD_SUB);
+	if (ltc_seq_e[PHC_CLK_250MHZ])
+		val |= PTP_LTC_SEQ_ADD_SUB;
+	val |= PTP_LTC_SEQ_ERR(ltc_seq_e[PHC_CLK_250MHZ]);
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_LTC_SEQ, val);
+
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_LTC_1PPS_WIDTH_ADJ,
+			     PPS_WIDTH_ADJ);
+
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_INGR_DELAY_FIFO,
+			     IS_ENABLED(CONFIG_MACSEC) ?
+			     PTP_INGR_DELAY_FIFO_DEPTH_MACSEC :
+			     PTP_INGR_DELAY_FIFO_DEPTH_DEFAULT);
+
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_EGR_DELAY_FIFO,
+			     IS_ENABLED(CONFIG_MACSEC) ?
+			     PTP_EGR_DELAY_FIFO_DEPTH_MACSEC :
+			     PTP_EGR_DELAY_FIFO_DEPTH_DEFAULT);
+
+	/* Enable n-phase sampler for Viper Rev-B */
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR,
+				  MSCC_PHY_PTP_ACCUR_CFG_STATUS);
+	val &= ~(PTP_ACCUR_PPS_OUT_BYPASS | PTP_ACCUR_PPS_IN_BYPASS |
+		 PTP_ACCUR_EGR_SOF_BYPASS | PTP_ACCUR_INGR_SOF_BYPASS |
+		 PTP_ACCUR_LOAD_SAVE_BYPASS);
+	val |= PTP_ACCUR_PPS_OUT_CALIB_ERR | PTP_ACCUR_PPS_OUT_CALIB_DONE |
+	       PTP_ACCUR_PPS_IN_CALIB_ERR | PTP_ACCUR_PPS_IN_CALIB_DONE |
+	       PTP_ACCUR_EGR_SOF_CALIB_ERR | PTP_ACCUR_EGR_SOF_CALIB_DONE |
+	       PTP_ACCUR_INGR_SOF_CALIB_ERR | PTP_ACCUR_INGR_SOF_CALIB_DONE |
+	       PTP_ACCUR_LOAD_SAVE_CALIB_ERR | PTP_ACCUR_LOAD_SAVE_CALIB_DONE;
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_ACCUR_CFG_STATUS,
+			     val);
+
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR,
+				  MSCC_PHY_PTP_ACCUR_CFG_STATUS);
+	val |= PTP_ACCUR_CALIB_TRIGG;
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_ACCUR_CFG_STATUS,
+			     val);
+
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR,
+				  MSCC_PHY_PTP_ACCUR_CFG_STATUS);
+	val &= ~PTP_ACCUR_CALIB_TRIGG;
+	val |= PTP_ACCUR_PPS_OUT_CALIB_ERR | PTP_ACCUR_PPS_OUT_CALIB_DONE |
+	       PTP_ACCUR_PPS_IN_CALIB_ERR | PTP_ACCUR_PPS_IN_CALIB_DONE |
+	       PTP_ACCUR_EGR_SOF_CALIB_ERR | PTP_ACCUR_EGR_SOF_CALIB_DONE |
+	       PTP_ACCUR_INGR_SOF_CALIB_ERR | PTP_ACCUR_INGR_SOF_CALIB_DONE |
+	       PTP_ACCUR_LOAD_SAVE_CALIB_ERR | PTP_ACCUR_LOAD_SAVE_CALIB_DONE;
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_ACCUR_CFG_STATUS,
+			     val);
+
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR,
+				  MSCC_PHY_PTP_ACCUR_CFG_STATUS);
+	val |= PTP_ACCUR_CALIB_TRIGG;
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_ACCUR_CFG_STATUS,
+			     val);
+
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR,
+				  MSCC_PHY_PTP_ACCUR_CFG_STATUS);
+	val &= ~PTP_ACCUR_CALIB_TRIGG;
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_ACCUR_CFG_STATUS,
+			     val);
+
+	/* Do not access FIFO via SI */
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR,
+				  MSCC_PHY_PTP_TSTAMP_FIFO_SI);
+	val &= ~PTP_TSTAMP_FIFO_SI_EN;
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_TSTAMP_FIFO_SI,
+			     val);
+
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR,
+				  MSCC_PHY_PTP_INGR_REWRITER_CTRL);
+	val &= ~PTP_INGR_REWRITER_REDUCE_PREAMBLE;
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_INGR_REWRITER_CTRL,
+			     val);
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR,
+				  MSCC_PHY_PTP_EGR_REWRITER_CTRL);
+	val &= ~PTP_EGR_REWRITER_REDUCE_PREAMBLE;
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_EGR_REWRITER_CTRL,
+			     val);
+
+	/* Put the flag that indicates the frame has been modified to bit 7 */
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR,
+				  MSCC_PHY_PTP_INGR_REWRITER_CTRL);
+	val |= PTP_INGR_REWRITER_FLAG_BIT_OFF(7) | PTP_INGR_REWRITER_FLAG_VAL;
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_INGR_REWRITER_CTRL,
+			     val);
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR,
+				  MSCC_PHY_PTP_EGR_REWRITER_CTRL);
+	val |= PTP_EGR_REWRITER_FLAG_BIT_OFF(7);
+	val &= ~PTP_EGR_REWRITER_FLAG_VAL;
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_EGR_REWRITER_CTRL,
+			     val);
+
+	/* 30bit mode for RX timestamp, only the nanoseconds are kept in
+	 * reserved field.
+	 */
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR,
+				  MSCC_PHY_PTP_INGR_TSP_CTRL);
+	val |= PHY_PTP_INGR_TSP_CTRL_FRACT_NS;
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_INGR_TSP_CTRL,
+			     val);
+
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR, MSCC_PHY_PTP_EGR_TSP_CTRL);
+	val |= PHY_PTP_EGR_TSP_CTRL_FRACT_NS;
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_EGR_TSP_CTRL, val);
+
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR,
+				  MSCC_PHY_PTP_SERIAL_TOD_IFACE);
+	val |= PTP_SERIAL_TOD_IFACE_LS_AUTO_CLR;
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_SERIAL_TOD_IFACE,
+			     val);
+
+	vsc85xx_ts_fsb_init(phydev);
+
+	/* Set the Egress timestamp FIFO configuration and status register */
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR,
+				  MSCC_PHY_PTP_EGR_TS_FIFO_CTRL);
+	val &= ~(PTP_EGR_TS_FIFO_SIG_BYTES_MASK | PTP_EGR_TS_FIFO_THRESH_MASK);
+	/* 16 bytes for the signature, 10 for the timestamp in the TS FIFO */
+	val |= PTP_EGR_TS_FIFO_SIG_BYTES(16) | PTP_EGR_TS_FIFO_THRESH(7);
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_EGR_TS_FIFO_CTRL,
+			     val);
+
+	vsc85xx_ts_reset_fifo(phydev);
+
+	val = PTP_IFACE_CTRL_CLK_ENA;
+	if (!IS_ENABLED(CONFIG_MACSEC))
+		val |= PTP_IFACE_CTRL_GMII_PROT;
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_IFACE_CTRL, val);
+
+	vsc85xx_ts_set_latencies(phydev);
+
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR, MSCC_PHY_PTP_VERSION_CODE);
+
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR, MSCC_PHY_PTP_IFACE_CTRL);
+	val |= PTP_IFACE_CTRL_EGR_BYPASS;
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_IFACE_CTRL, val);
+
+	vsc85xx_ts_disable_flows(phydev, EGRESS);
+	vsc85xx_ts_disable_flows(phydev, INGRESS);
+
+	val = vsc85xx_ts_read_csr(phydev, PROCESSOR,
+				  MSCC_PHY_PTP_ANALYZER_MODE);
+	/* Disable INGRESS and EGRESS so engine eng_id can be reconfigured */
+	val &= ~(PTP_ANALYZER_MODE_EGR_ENA_MASK |
+		 PTP_ANALYZER_MODE_INGR_ENA_MASK |
+		 PTP_ANA_INGR_ENCAP_FLOW_MODE_MASK |
+		 PTP_ANA_EGR_ENCAP_FLOW_MODE_MASK);
+	/* Strict matching in flow (packets should match flows from the same
+	 * index in all enabled comparators (except PTP)).
+	 */
+	val |= PTP_ANA_SPLIT_ENCAP_FLOW | PTP_ANA_INGR_ENCAP_FLOW_MODE(0x7) |
+	       PTP_ANA_EGR_ENCAP_FLOW_MODE(0x7);
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_PTP_ANALYZER_MODE,
+			     val);
+
+	/* Initialized for ingress and egress flows:
+	 * - The Ethernet comparator.
+	 * - The IP comparator.
+	 * - The PTP comparator.
+	 */
+	vsc85xx_eth_cmp1_init(phydev, INGRESS);
+	vsc85xx_ip_cmp1_init(phydev, INGRESS);
+	vsc85xx_ptp_cmp_init(phydev, INGRESS);
+	vsc85xx_eth_cmp1_init(phydev, EGRESS);
+	vsc85xx_ip_cmp1_init(phydev, EGRESS);
+	vsc85xx_ptp_cmp_init(phydev, EGRESS);
+
+	vsc85xx_ts_eth_cmp1_sig(phydev);
+
+	vsc8531->mii_ts.rxtstamp = vsc85xx_rxtstamp;
+	vsc8531->mii_ts.txtstamp = vsc85xx_txtstamp;
+	vsc8531->mii_ts.hwtstamp = vsc85xx_hwtstamp;
+	vsc8531->mii_ts.ts_info  = vsc85xx_ts_info;
+	phydev->mii_ts = &vsc8531->mii_ts;
+
+	memcpy(&vsc8531->ptp->caps, &vsc85xx_clk_caps, sizeof(vsc85xx_clk_caps));
+
+	vsc8531->ptp->ptp_clock = ptp_clock_register(&vsc8531->ptp->caps,
+						     &phydev->mdio.dev);
+	return PTR_ERR_OR_ZERO(vsc8531->ptp->ptp_clock);
+}
+
+void vsc8584_config_ts_intr(struct phy_device *phydev)
+{
+	struct vsc8531_private *priv = phydev->priv;
+
+	mutex_lock(&priv->ts_lock);
+	vsc85xx_ts_write_csr(phydev, PROCESSOR, MSCC_PHY_1588_VSC85XX_INT_MASK,
+			     VSC85XX_1588_INT_MASK_MASK);
+	mutex_unlock(&priv->ts_lock);
+}
+
+int vsc8584_ptp_init(struct phy_device *phydev)
+{
+	switch (phydev->phy_id & phydev->drv->phy_id_mask) {
+	case PHY_ID_VSC8572:
+	case PHY_ID_VSC8574:
+	case PHY_ID_VSC8575:
+	case PHY_ID_VSC8582:
+	case PHY_ID_VSC8584:
+		return __vsc8584_init_ptp(phydev);
+	}
+
+	return 0;
+}
+
+irqreturn_t vsc8584_handle_ts_interrupt(struct phy_device *phydev)
+{
+	struct vsc8531_private *priv = phydev->priv;
+	int rc;
+
+	mutex_lock(&priv->ts_lock);
+	rc = vsc85xx_ts_read_csr(phydev, PROCESSOR,
+				 MSCC_PHY_1588_VSC85XX_INT_STATUS);
+	/* Ack the PTP interrupt */
+	vsc85xx_ts_write_csr(phydev, PROCESSOR,
+			     MSCC_PHY_1588_VSC85XX_INT_STATUS, rc);
+
+	if (!(rc & VSC85XX_1588_INT_MASK_MASK)) {
+		mutex_unlock(&priv->ts_lock);
+		return IRQ_NONE;
+	}
+
+	if (rc & VSC85XX_1588_INT_FIFO_ADD) {
+		vsc85xx_get_tx_ts(priv->ptp);
+	} else if (rc & VSC85XX_1588_INT_FIFO_OVERFLOW) {
+		__skb_queue_purge(&priv->ptp->tx_queue);
+		vsc85xx_ts_reset_fifo(phydev);
+	}
+
+	mutex_unlock(&priv->ts_lock);
+	return IRQ_HANDLED;
+}
+
+int vsc8584_ptp_probe(struct phy_device *phydev)
+{
+	struct vsc8531_private *vsc8531 = phydev->priv;
+
+	vsc8531->ptp = devm_kzalloc(&phydev->mdio.dev, sizeof(*vsc8531->ptp),
+				    GFP_KERNEL);
+	if (!vsc8531->ptp)
+		return -ENOMEM;
+
+	mutex_init(&vsc8531->phc_lock);
+	mutex_init(&vsc8531->ts_lock);
+
+	/* Retrieve the shared load/save GPIO. Request it as non exclusive as
+	 * the same GPIO can be requested by all the PHYs of the same package.
+	 * This GPIO must be used with the gpio_lock taken (the lock is shared
+	 * between all PHYs).
+	 */
+	vsc8531->load_save = devm_gpiod_get_optional(&phydev->mdio.dev, "load-save",
+						     GPIOD_FLAGS_BIT_NONEXCLUSIVE |
+						     GPIOD_OUT_LOW);
+	if (IS_ERR(vsc8531->load_save)) {
+		phydev_err(phydev, "Can't get load-save GPIO (%ld)\n",
+			   PTR_ERR(vsc8531->load_save));
+		return PTR_ERR(vsc8531->load_save);
+	}
+
+	vsc8531->ptp->phydev = phydev;
+
+	return 0;
+}
+
+int vsc8584_ptp_probe_once(struct phy_device *phydev)
+{
+	struct vsc85xx_shared_private *shared =
+		(struct vsc85xx_shared_private *)phydev->shared->priv;
+
+	/* Initialize shared GPIO lock */
+	mutex_init(&shared->gpio_lock);
+
+	return 0;
+}