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path: root/drivers/net/phy/mscc/mscc_ptp.c
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Diffstat (limited to 'drivers/net/phy/mscc/mscc_ptp.c')
-rw-r--r--drivers/net/phy/mscc/mscc_ptp.c1590
1 files changed, 1590 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..b97ee79f3
--- /dev/null
+++ b/drivers/net/phy/mscc/mscc_ptp.c
@@ -0,0 +1,1590 @@
+// 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 || (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;
+ enum vsc85xx_ptp_msg_type msgs[] = {
+ PTP_MSG_TYPE_SYNC,
+ PTP_MSG_TYPE_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)
+{
+ enum vsc85xx_ptp_msg_type msgs[] = {
+ PTP_MSG_TYPE_SYNC,
+ PTP_MSG_TYPE_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_MSG_TYPE_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;
+
+ if (cfg.flags)
+ return -EINVAL;
+
+ 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_ni(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;
+ u32 ltc_seq_e[] = { 0, 400000, 0, 0, 0 };
+ 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_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;
+}