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authorLinus Torvalds <[email protected]>2025-05-28 22:24:36 +0000
committerLinus Torvalds <[email protected]>2025-05-28 22:24:36 +0000
commit1b98f357dadd6ea613a435fbaef1a5dd7b35fd21 (patch)
tree32a7195aead30f4dcadf3c3f897df2b4611b88b8 /drivers/net/phy/mxl-86110.c
parentMerge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/a... (diff)
parentMerge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net (diff)
downloadkernel-1b98f357dadd6ea613a435fbaef1a5dd7b35fd21.tar.gz
kernel-1b98f357dadd6ea613a435fbaef1a5dd7b35fd21.zip
Merge tag 'net-next-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Paolo Abeni: "Core: - Implement the Device Memory TCP transmit path, allowing zero-copy data transmission on top of TCP from e.g. GPU memory to the wire. - Move all the IPv6 routing tables management outside the RTNL scope, under its own lock and RCU. The route control path is now 3x times faster. - Convert queue related netlink ops to instance lock, reducing again the scope of the RTNL lock. This improves the control plane scalability. - Refactor the software crc32c implementation, removing unneeded abstraction layers and improving significantly the related micro-benchmarks. - Optimize the GRO engine for UDP-tunneled traffic, for a 10% performance improvement in related stream tests. - Cover more per-CPU storage with local nested BH locking; this is a prep work to remove the current per-CPU lock in local_bh_disable() on PREMPT_RT. - Introduce and use nlmsg_payload helper, combining buffer bounds verification with accessing payload carried by netlink messages. Netfilter: - Rewrite the procfs conntrack table implementation, improving considerably the dump performance. A lot of user-space tools still use this interface. - Implement support for wildcard netdevice in netdev basechain and flowtables. - Integrate conntrack information into nft trace infrastructure. - Export set count and backend name to userspace, for better introspection. BPF: - BPF qdisc support: BPF-qdisc can be implemented with BPF struct_ops programs and can be controlled in similar way to traditional qdiscs using the "tc qdisc" command. - Refactor the UDP socket iterator, addressing long standing issues WRT duplicate hits or missed sockets. Protocols: - Improve TCP receive buffer auto-tuning and increase the default upper bound for the receive buffer; overall this improves the single flow maximum thoughput on 200Gbs link by over 60%. - Add AFS GSSAPI security class to AF_RXRPC; it provides transport security for connections to the AFS fileserver and VL server. - Improve TCP multipath routing, so that the sources address always matches the nexthop device. - Introduce SO_PASSRIGHTS for AF_UNIX, to allow disabling SCM_RIGHTS, and thus preventing DoS caused by passing around problematic FDs. - Retire DCCP socket. DCCP only receives updates for bugs, and major distros disable it by default. Its removal allows for better organisation of TCP fields to reduce the number of cache lines hit in the fast path. - Extend TCP drop-reason support to cover PAWS checks. Driver API: - Reorganize PTP ioctl flag support to require an explicit opt-in for the drivers, avoiding the problem of drivers not rejecting new unsupported flags. - Converted several device drivers to timestamping APIs. - Introduce per-PHY ethtool dump helpers, improving the support for dump operations targeting PHYs. Tests and tooling: - Add support for classic netlink in user space C codegen, so that ynl-c can now read, create and modify links, routes addresses and qdisc layer configuration. - Add ynl sub-types for binary attributes, allowing ynl-c to output known struct instead of raw binary data, clarifying the classic netlink output. - Extend MPTCP selftests to improve the code-coverage. - Add tests for XDP tail adjustment in AF_XDP. New hardware / drivers: - OpenVPN virtual driver: offload OpenVPN data channels processing to the kernel-space, increasing the data transfer throughput WRT the user-space implementation. - Renesas glue driver for the gigabit ethernet RZ/V2H(P) SoC. - Broadcom asp-v3.0 ethernet driver. - AMD Renoir ethernet device. - ReakTek MT9888 2.5G ethernet PHY driver. - Aeonsemi 10G C45 PHYs driver. Drivers: - Ethernet high-speed NICs: - nVidia/Mellanox (mlx5): - refactor the steering table handling to significantly reduce the amount of memory used - add support for complex matches in H/W flow steering - improve flow streeing error handling - convert to netdev instance locking - Intel (100G, ice, igb, ixgbe, idpf): - ice: add switchdev support for LLDP traffic over VF - ixgbe: add firmware manipulation and regions devlink support - igb: introduce support for frame transmission premption - igb: adds persistent NAPI configuration - idpf: introduce RDMA support - idpf: add initial PTP support - Meta (fbnic): - extend hardware stats coverage - add devlink dev flash support - Broadcom (bnxt): - add support for RX-side device memory TCP - Wangxun (txgbe): - implement support for udp tunnel offload - complete PTP and SRIOV support for AML 25G/10G devices - Ethernet NICs embedded and virtual: - Google (gve): - add device memory TCP TX support - Amazon (ena): - support persistent per-NAPI config - Airoha: - add H/W support for L2 traffic offload - add per flow stats for flow offloading - RealTek (rtl8211): add support for WoL magic packet - Synopsys (stmmac): - dwmac-socfpga 1000BaseX support - add Loongson-2K3000 support - introduce support for hardware-accelerated VLAN stripping - Broadcom (bcmgenet): - expose more H/W stats - Freescale (enetc, dpaa2-eth): - enetc: add MAC filter, VLAN filter RSS and loopback support - dpaa2-eth: convert to H/W timestamping APIs - vxlan: convert FDB table to rhashtable, for better scalabilty - veth: apply qdisc backpressure on full ring to reduce TX drops - Ethernet switches: - Microchip (kzZ88x3): add ETS scheduler support - Ethernet PHYs: - RealTek (rtl8211): - add support for WoL magic packet - add support for PHY LEDs - CAN: - Adds RZ/G3E CANFD support to the rcar_canfd driver. - Preparatory work for CAN-XL support. - Add self-tests framework with support for CAN physical interfaces. - WiFi: - mac80211: - scan improvements with multi-link operation (MLO) - Qualcomm (ath12k): - enable AHB support for IPQ5332 - add monitor interface support to QCN9274 - add multi-link operation support to WCN7850 - add 802.11d scan offload support to WCN7850 - monitor mode for WCN7850, better 6 GHz regulatory - Qualcomm (ath11k): - restore hibernation support - MediaTek (mt76): - WiFi-7 improvements - implement support for mt7990 - Intel (iwlwifi): - enhanced multi-link single-radio (EMLSR) support on 5 GHz links - rework device configuration - RealTek (rtw88): - improve throughput for RTL8814AU - RealTek (rtw89): - add multi-link operation support - STA/P2P concurrency improvements - support different SAR configs by antenna - Bluetooth: - introduce HCI Driver protocol - btintel_pcie: do not generate coredump for diagnostic events - btusb: add HCI Drv commands for configuring altsetting - btusb: add RTL8851BE device 0x0bda:0xb850 - btusb: add new VID/PID 13d3/3584 for MT7922 - btusb: add new VID/PID 13d3/3630 and 13d3/3613 for MT7925 - btnxpuart: implement host-wakeup feature" * tag 'net-next-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1611 commits) selftests/bpf: Fix bpf selftest build warning selftests: netfilter: Fix skip of wildcard interface test net: phy: mscc: Stop clearing the the UDPv4 checksum for L2 frames net: openvswitch: Fix the dead loop of MPLS parse calipso: Don't call calipso functions for AF_INET sk. selftests/tc-testing: Add a test for HFSC eltree double add with reentrant enqueue behaviour on netem net_sched: hfsc: Address reentrant enqueue adding class to eltree twice octeontx2-pf: QOS: Refactor TC_HTB_LEAF_DEL_LAST callback octeontx2-pf: QOS: Perform cache sync on send queue teardown net: mana: Add support for Multi Vports on Bare metal net: devmem: ncdevmem: remove unused variable net: devmem: ksft: upgrade rx test to send 1K data net: devmem: ksft: add 5 tuple FS support net: devmem: ksft: add exit_wait to make rx test pass net: devmem: ksft: add ipv4 support net: devmem: preserve sockc_err page_pool: fix ugly page_pool formatting net: devmem: move list_add to net_devmem_bind_dmabuf. selftests: netfilter: nft_queue.sh: include file transfer duration in log message net: phy: mscc: Fix memory leak when using one step timestamping ...
Diffstat (limited to 'drivers/net/phy/mxl-86110.c')
-rw-r--r--drivers/net/phy/mxl-86110.c616
1 files changed, 616 insertions, 0 deletions
diff --git a/drivers/net/phy/mxl-86110.c b/drivers/net/phy/mxl-86110.c
new file mode 100644
index 000000000000..ff2a3a22bd5b
--- /dev/null
+++ b/drivers/net/phy/mxl-86110.c
@@ -0,0 +1,616 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * PHY driver for Maxlinear MXL86110
+ *
+ * Copyright 2023 MaxLinear Inc.
+ *
+ */
+
+#include <linux/bitfield.h>
+#include <linux/etherdevice.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/phy.h>
+
+/* PHY ID */
+#define PHY_ID_MXL86110 0xc1335580
+
+/* required to access extended registers */
+#define MXL86110_EXTD_REG_ADDR_OFFSET 0x1E
+#define MXL86110_EXTD_REG_ADDR_DATA 0x1F
+#define PHY_IRQ_ENABLE_REG 0x12
+#define PHY_IRQ_ENABLE_REG_WOL BIT(6)
+
+/* SyncE Configuration Register - COM_EXT SYNCE_CFG */
+#define MXL86110_EXT_SYNCE_CFG_REG 0xA012
+#define MXL86110_EXT_SYNCE_CFG_CLK_FRE_SEL BIT(4)
+#define MXL86110_EXT_SYNCE_CFG_EN_SYNC_E_DURING_LNKDN BIT(5)
+#define MXL86110_EXT_SYNCE_CFG_EN_SYNC_E BIT(6)
+#define MXL86110_EXT_SYNCE_CFG_CLK_SRC_SEL_MASK GENMASK(3, 1)
+#define MXL86110_EXT_SYNCE_CFG_CLK_SRC_SEL_125M_PLL 0
+#define MXL86110_EXT_SYNCE_CFG_CLK_SRC_SEL_25M 4
+
+/* MAC Address registers */
+#define MXL86110_EXT_MAC_ADDR_CFG1 0xA007
+#define MXL86110_EXT_MAC_ADDR_CFG2 0xA008
+#define MXL86110_EXT_MAC_ADDR_CFG3 0xA009
+
+#define MXL86110_EXT_WOL_CFG_REG 0xA00A
+#define MXL86110_WOL_CFG_WOL_MASK BIT(3)
+
+/* RGMII register */
+#define MXL86110_EXT_RGMII_CFG1_REG 0xA003
+/* delay can be adjusted in steps of about 150ps */
+#define MXL86110_EXT_RGMII_CFG1_RX_NO_DELAY (0x0 << 10)
+/* Closest value to 2000 ps */
+#define MXL86110_EXT_RGMII_CFG1_RX_DELAY_1950PS (0xD << 10)
+#define MXL86110_EXT_RGMII_CFG1_RX_DELAY_MASK GENMASK(13, 10)
+
+#define MXL86110_EXT_RGMII_CFG1_TX_1G_DELAY_1950PS (0xD << 0)
+#define MXL86110_EXT_RGMII_CFG1_TX_1G_DELAY_MASK GENMASK(3, 0)
+
+#define MXL86110_EXT_RGMII_CFG1_TX_10MB_100MB_DELAY_1950PS (0xD << 4)
+#define MXL86110_EXT_RGMII_CFG1_TX_10MB_100MB_DELAY_MASK GENMASK(7, 4)
+
+#define MXL86110_EXT_RGMII_CFG1_FULL_MASK \
+ ((MXL86110_EXT_RGMII_CFG1_RX_DELAY_MASK) | \
+ (MXL86110_EXT_RGMII_CFG1_TX_1G_DELAY_MASK) | \
+ (MXL86110_EXT_RGMII_CFG1_TX_10MB_100MB_DELAY_MASK))
+
+/* EXT Sleep Control register */
+#define MXL86110_UTP_EXT_SLEEP_CTRL_REG 0x27
+#define MXL86110_UTP_EXT_SLEEP_CTRL_EN_SLEEP_SW_OFF 0
+#define MXL86110_UTP_EXT_SLEEP_CTRL_EN_SLEEP_SW_MASK BIT(15)
+
+/* RGMII In-Band Status and MDIO Configuration Register */
+#define MXL86110_EXT_RGMII_MDIO_CFG 0xA005
+#define MXL86110_RGMII_MDIO_CFG_EPA0_MASK GENMASK(6, 6)
+#define MXL86110_EXT_RGMII_MDIO_CFG_EBA_MASK GENMASK(5, 5)
+#define MXL86110_EXT_RGMII_MDIO_CFG_BA_MASK GENMASK(4, 0)
+
+#define MXL86110_MAX_LEDS 3
+/* LED registers and defines */
+#define MXL86110_LED0_CFG_REG 0xA00C
+#define MXL86110_LED1_CFG_REG 0xA00D
+#define MXL86110_LED2_CFG_REG 0xA00E
+
+#define MXL86110_LEDX_CFG_BLINK BIT(13)
+#define MXL86110_LEDX_CFG_LINK_UP_FULL_DUPLEX_ON BIT(12)
+#define MXL86110_LEDX_CFG_LINK_UP_HALF_DUPLEX_ON BIT(11)
+#define MXL86110_LEDX_CFG_LINK_UP_TX_ACT_ON BIT(10)
+#define MXL86110_LEDX_CFG_LINK_UP_RX_ACT_ON BIT(9)
+#define MXL86110_LEDX_CFG_LINK_UP_TX_ON BIT(8)
+#define MXL86110_LEDX_CFG_LINK_UP_RX_ON BIT(7)
+#define MXL86110_LEDX_CFG_LINK_UP_1GB_ON BIT(6)
+#define MXL86110_LEDX_CFG_LINK_UP_100MB_ON BIT(5)
+#define MXL86110_LEDX_CFG_LINK_UP_10MB_ON BIT(4)
+#define MXL86110_LEDX_CFG_LINK_UP_COLLISION BIT(3)
+#define MXL86110_LEDX_CFG_LINK_UP_1GB_BLINK BIT(2)
+#define MXL86110_LEDX_CFG_LINK_UP_100MB_BLINK BIT(1)
+#define MXL86110_LEDX_CFG_LINK_UP_10MB_BLINK BIT(0)
+
+#define MXL86110_LED_BLINK_CFG_REG 0xA00F
+#define MXL86110_LED_BLINK_CFG_FREQ_MODE1_2HZ 0
+#define MXL86110_LED_BLINK_CFG_FREQ_MODE1_4HZ BIT(0)
+#define MXL86110_LED_BLINK_CFG_FREQ_MODE1_8HZ BIT(1)
+#define MXL86110_LED_BLINK_CFG_FREQ_MODE1_16HZ (BIT(1) | BIT(0))
+#define MXL86110_LED_BLINK_CFG_FREQ_MODE2_2HZ 0
+#define MXL86110_LED_BLINK_CFG_FREQ_MODE2_4HZ BIT(2)
+#define MXL86110_LED_BLINK_CFG_FREQ_MODE2_8HZ BIT(3)
+#define MXL86110_LED_BLINK_CFG_FREQ_MODE2_16HZ (BIT(3) | BIT(2))
+#define MXL86110_LED_BLINK_CFG_DUTY_CYCLE_50_ON 0
+#define MXL86110_LED_BLINK_CFG_DUTY_CYCLE_67_ON (BIT(4))
+#define MXL86110_LED_BLINK_CFG_DUTY_CYCLE_75_ON (BIT(5))
+#define MXL86110_LED_BLINK_CFG_DUTY_CYCLE_83_ON (BIT(5) | BIT(4))
+#define MXL86110_LED_BLINK_CFG_DUTY_CYCLE_50_OFF (BIT(6))
+#define MXL86110_LED_BLINK_CFG_DUTY_CYCLE_33_ON (BIT(6) | BIT(4))
+#define MXL86110_LED_BLINK_CFG_DUTY_CYCLE_25_ON (BIT(6) | BIT(5))
+#define MXL86110_LED_BLINK_CFG_DUTY_CYCLE_17_ON (BIT(6) | BIT(5) | BIT(4))
+
+/* Chip Configuration Register - COM_EXT_CHIP_CFG */
+#define MXL86110_EXT_CHIP_CFG_REG 0xA001
+#define MXL86110_EXT_CHIP_CFG_RXDLY_ENABLE BIT(8)
+#define MXL86110_EXT_CHIP_CFG_SW_RST_N_MODE BIT(15)
+
+/**
+ * __mxl86110_write_extended_reg() - write to a PHY's extended register
+ * @phydev: pointer to the PHY device structure
+ * @regnum: register number to write
+ * @val: value to write to @regnum
+ *
+ * Unlocked version of mxl86110_write_extended_reg
+ *
+ * Note: This function assumes the caller already holds the MDIO bus lock
+ * or otherwise has exclusive access to the PHY.
+ *
+ * Return: 0 or negative error code
+ */
+static int __mxl86110_write_extended_reg(struct phy_device *phydev,
+ u16 regnum, u16 val)
+{
+ int ret;
+
+ ret = __phy_write(phydev, MXL86110_EXTD_REG_ADDR_OFFSET, regnum);
+ if (ret < 0)
+ return ret;
+
+ return __phy_write(phydev, MXL86110_EXTD_REG_ADDR_DATA, val);
+}
+
+/**
+ * __mxl86110_read_extended_reg - Read a PHY's extended register
+ * @phydev: pointer to the PHY device structure
+ * @regnum: extended register number to read (address written to reg 30)
+ *
+ * Unlocked version of mxl86110_read_extended_reg
+ *
+ * Reads the content of a PHY extended register using the MaxLinear
+ * 2-step access mechanism: write the register address to reg 30 (0x1E),
+ * then read the value from reg 31 (0x1F).
+ *
+ * Note: This function assumes the caller already holds the MDIO bus lock
+ * or otherwise has exclusive access to the PHY.
+ *
+ * Return: 16-bit register value on success, or negative errno code on failure.
+ */
+static int __mxl86110_read_extended_reg(struct phy_device *phydev, u16 regnum)
+{
+ int ret;
+
+ ret = __phy_write(phydev, MXL86110_EXTD_REG_ADDR_OFFSET, regnum);
+ if (ret < 0)
+ return ret;
+ return __phy_read(phydev, MXL86110_EXTD_REG_ADDR_DATA);
+}
+
+/**
+ * __mxl86110_modify_extended_reg() - modify bits of a PHY's extended register
+ * @phydev: pointer to the PHY device structure
+ * @regnum: register number to write
+ * @mask: bit mask of bits to clear
+ * @set: bit mask of bits to set
+ *
+ * Note: register value = (old register value & ~mask) | set.
+ * This function assumes the caller already holds the MDIO bus lock
+ * or otherwise has exclusive access to the PHY.
+ *
+ * Return: 0 or negative error code
+ */
+static int __mxl86110_modify_extended_reg(struct phy_device *phydev,
+ u16 regnum, u16 mask, u16 set)
+{
+ int ret;
+
+ ret = __phy_write(phydev, MXL86110_EXTD_REG_ADDR_OFFSET, regnum);
+ if (ret < 0)
+ return ret;
+
+ return __phy_modify(phydev, MXL86110_EXTD_REG_ADDR_DATA, mask, set);
+}
+
+/**
+ * mxl86110_write_extended_reg() - Write to a PHY's extended register
+ * @phydev: pointer to the PHY device structure
+ * @regnum: register number to write
+ * @val: value to write to @regnum
+ *
+ * This function writes to an extended register of the PHY using the
+ * MaxLinear two-step access method (reg 0x1E/0x1F). It handles acquiring
+ * and releasing the MDIO bus lock internally.
+ *
+ * Return: 0 or negative error code
+ */
+static int mxl86110_write_extended_reg(struct phy_device *phydev,
+ u16 regnum, u16 val)
+{
+ int ret;
+
+ phy_lock_mdio_bus(phydev);
+ ret = __mxl86110_write_extended_reg(phydev, regnum, val);
+ phy_unlock_mdio_bus(phydev);
+
+ return ret;
+}
+
+/**
+ * mxl86110_read_extended_reg() - Read a PHY's extended register
+ * @phydev: pointer to the PHY device structure
+ * @regnum: extended register number to read
+ *
+ * This function reads from an extended register of the PHY using the
+ * MaxLinear two-step access method (reg 0x1E/0x1F). It handles acquiring
+ * and releasing the MDIO bus lock internally.
+ *
+ * Return: 16-bit register value on success, or negative errno code on failure
+ */
+static int mxl86110_read_extended_reg(struct phy_device *phydev, u16 regnum)
+{
+ int ret;
+
+ phy_lock_mdio_bus(phydev);
+ ret = __mxl86110_read_extended_reg(phydev, regnum);
+ phy_unlock_mdio_bus(phydev);
+
+ return ret;
+}
+
+/**
+ * mxl86110_get_wol() - report if wake-on-lan is enabled
+ * @phydev: pointer to the phy_device
+ * @wol: a pointer to a &struct ethtool_wolinfo
+ */
+static void mxl86110_get_wol(struct phy_device *phydev,
+ struct ethtool_wolinfo *wol)
+{
+ int val;
+
+ wol->supported = WAKE_MAGIC;
+ wol->wolopts = 0;
+ val = mxl86110_read_extended_reg(phydev, MXL86110_EXT_WOL_CFG_REG);
+ if (val >= 0 && (val & MXL86110_WOL_CFG_WOL_MASK))
+ wol->wolopts |= WAKE_MAGIC;
+}
+
+/**
+ * mxl86110_set_wol() - enable/disable wake-on-lan
+ * @phydev: pointer to the phy_device
+ * @wol: a pointer to a &struct ethtool_wolinfo
+ *
+ * Configures the WOL Magic Packet MAC
+ *
+ * Return: 0 or negative errno code
+ */
+static int mxl86110_set_wol(struct phy_device *phydev,
+ struct ethtool_wolinfo *wol)
+{
+ struct net_device *netdev;
+ const unsigned char *mac;
+ int ret = 0;
+
+ phy_lock_mdio_bus(phydev);
+
+ if (wol->wolopts & WAKE_MAGIC) {
+ netdev = phydev->attached_dev;
+ if (!netdev) {
+ ret = -ENODEV;
+ goto out;
+ }
+
+ /* Configure the MAC address of the WOL magic packet */
+ mac = netdev->dev_addr;
+ ret = __mxl86110_write_extended_reg(phydev,
+ MXL86110_EXT_MAC_ADDR_CFG1,
+ ((mac[0] << 8) | mac[1]));
+ if (ret < 0)
+ goto out;
+
+ ret = __mxl86110_write_extended_reg(phydev,
+ MXL86110_EXT_MAC_ADDR_CFG2,
+ ((mac[2] << 8) | mac[3]));
+ if (ret < 0)
+ goto out;
+
+ ret = __mxl86110_write_extended_reg(phydev,
+ MXL86110_EXT_MAC_ADDR_CFG3,
+ ((mac[4] << 8) | mac[5]));
+ if (ret < 0)
+ goto out;
+
+ ret = __mxl86110_modify_extended_reg(phydev,
+ MXL86110_EXT_WOL_CFG_REG,
+ MXL86110_WOL_CFG_WOL_MASK,
+ MXL86110_WOL_CFG_WOL_MASK);
+ if (ret < 0)
+ goto out;
+
+ /* Enables Wake-on-LAN interrupt in the PHY. */
+ ret = __phy_modify(phydev, PHY_IRQ_ENABLE_REG, 0,
+ PHY_IRQ_ENABLE_REG_WOL);
+ if (ret < 0)
+ goto out;
+
+ phydev_dbg(phydev,
+ "%s, MAC Addr: %02X:%02X:%02X:%02X:%02X:%02X\n",
+ __func__,
+ mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
+ } else {
+ ret = __mxl86110_modify_extended_reg(phydev,
+ MXL86110_EXT_WOL_CFG_REG,
+ MXL86110_WOL_CFG_WOL_MASK,
+ 0);
+ if (ret < 0)
+ goto out;
+
+ /* Disables Wake-on-LAN interrupt in the PHY. */
+ ret = __phy_modify(phydev, PHY_IRQ_ENABLE_REG,
+ PHY_IRQ_ENABLE_REG_WOL, 0);
+ }
+
+out:
+ phy_unlock_mdio_bus(phydev);
+ return ret;
+}
+
+static const unsigned long supported_trgs = (BIT(TRIGGER_NETDEV_LINK_10) |
+ BIT(TRIGGER_NETDEV_LINK_100) |
+ BIT(TRIGGER_NETDEV_LINK_1000) |
+ BIT(TRIGGER_NETDEV_HALF_DUPLEX) |
+ BIT(TRIGGER_NETDEV_FULL_DUPLEX) |
+ BIT(TRIGGER_NETDEV_TX) |
+ BIT(TRIGGER_NETDEV_RX));
+
+static int mxl86110_led_hw_is_supported(struct phy_device *phydev, u8 index,
+ unsigned long rules)
+{
+ if (index >= MXL86110_MAX_LEDS)
+ return -EINVAL;
+
+ /* All combinations of the supported triggers are allowed */
+ if (rules & ~supported_trgs)
+ return -EOPNOTSUPP;
+
+ return 0;
+}
+
+static int mxl86110_led_hw_control_get(struct phy_device *phydev, u8 index,
+ unsigned long *rules)
+{
+ int val;
+
+ if (index >= MXL86110_MAX_LEDS)
+ return -EINVAL;
+
+ val = mxl86110_read_extended_reg(phydev,
+ MXL86110_LED0_CFG_REG + index);
+ if (val < 0)
+ return val;
+
+ if (val & MXL86110_LEDX_CFG_LINK_UP_TX_ACT_ON)
+ *rules |= BIT(TRIGGER_NETDEV_TX);
+
+ if (val & MXL86110_LEDX_CFG_LINK_UP_RX_ACT_ON)
+ *rules |= BIT(TRIGGER_NETDEV_RX);
+
+ if (val & MXL86110_LEDX_CFG_LINK_UP_HALF_DUPLEX_ON)
+ *rules |= BIT(TRIGGER_NETDEV_HALF_DUPLEX);
+
+ if (val & MXL86110_LEDX_CFG_LINK_UP_FULL_DUPLEX_ON)
+ *rules |= BIT(TRIGGER_NETDEV_FULL_DUPLEX);
+
+ if (val & MXL86110_LEDX_CFG_LINK_UP_10MB_ON)
+ *rules |= BIT(TRIGGER_NETDEV_LINK_10);
+
+ if (val & MXL86110_LEDX_CFG_LINK_UP_100MB_ON)
+ *rules |= BIT(TRIGGER_NETDEV_LINK_100);
+
+ if (val & MXL86110_LEDX_CFG_LINK_UP_1GB_ON)
+ *rules |= BIT(TRIGGER_NETDEV_LINK_1000);
+
+ return 0;
+}
+
+static int mxl86110_led_hw_control_set(struct phy_device *phydev, u8 index,
+ unsigned long rules)
+{
+ u16 val = 0;
+
+ if (index >= MXL86110_MAX_LEDS)
+ return -EINVAL;
+
+ if (rules & BIT(TRIGGER_NETDEV_LINK_10))
+ val |= MXL86110_LEDX_CFG_LINK_UP_10MB_ON;
+
+ if (rules & BIT(TRIGGER_NETDEV_LINK_100))
+ val |= MXL86110_LEDX_CFG_LINK_UP_100MB_ON;
+
+ if (rules & BIT(TRIGGER_NETDEV_LINK_1000))
+ val |= MXL86110_LEDX_CFG_LINK_UP_1GB_ON;
+
+ if (rules & BIT(TRIGGER_NETDEV_TX))
+ val |= MXL86110_LEDX_CFG_LINK_UP_TX_ACT_ON;
+
+ if (rules & BIT(TRIGGER_NETDEV_RX))
+ val |= MXL86110_LEDX_CFG_LINK_UP_RX_ACT_ON;
+
+ if (rules & BIT(TRIGGER_NETDEV_HALF_DUPLEX))
+ val |= MXL86110_LEDX_CFG_LINK_UP_HALF_DUPLEX_ON;
+
+ if (rules & BIT(TRIGGER_NETDEV_FULL_DUPLEX))
+ val |= MXL86110_LEDX_CFG_LINK_UP_FULL_DUPLEX_ON;
+
+ if (rules & BIT(TRIGGER_NETDEV_TX) ||
+ rules & BIT(TRIGGER_NETDEV_RX))
+ val |= MXL86110_LEDX_CFG_BLINK;
+
+ return mxl86110_write_extended_reg(phydev,
+ MXL86110_LED0_CFG_REG + index, val);
+}
+
+/**
+ * mxl86110_synce_clk_cfg() - applies syncE/clk output configuration
+ * @phydev: pointer to the phy_device
+ *
+ * Note: This function assumes the caller already holds the MDIO bus lock
+ * or otherwise has exclusive access to the PHY.
+ *
+ * Return: 0 or negative errno code
+ */
+static int mxl86110_synce_clk_cfg(struct phy_device *phydev)
+{
+ u16 mask = 0, val = 0;
+
+ /*
+ * Configures the clock output to its default
+ * setting as per the datasheet.
+ * This results in a 25MHz clock output being selected in the
+ * COM_EXT_SYNCE_CFG register for SyncE configuration.
+ */
+ val = MXL86110_EXT_SYNCE_CFG_EN_SYNC_E |
+ FIELD_PREP(MXL86110_EXT_SYNCE_CFG_CLK_SRC_SEL_MASK,
+ MXL86110_EXT_SYNCE_CFG_CLK_SRC_SEL_25M);
+ mask = MXL86110_EXT_SYNCE_CFG_EN_SYNC_E |
+ MXL86110_EXT_SYNCE_CFG_CLK_SRC_SEL_MASK |
+ MXL86110_EXT_SYNCE_CFG_CLK_FRE_SEL;
+
+ /* Write clock output configuration */
+ return __mxl86110_modify_extended_reg(phydev,
+ MXL86110_EXT_SYNCE_CFG_REG,
+ mask, val);
+}
+
+/**
+ * mxl86110_broadcast_cfg - Configure MDIO broadcast setting for PHY
+ * @phydev: Pointer to the PHY device structure
+ *
+ * This function configures the MDIO broadcast behavior of the MxL86110 PHY.
+ * Currently, broadcast mode is explicitly disabled by clearing the EPA0 bit
+ * in the RGMII_MDIO_CFG extended register.
+ *
+ * Note: This function assumes the caller already holds the MDIO bus lock
+ * or otherwise has exclusive access to the PHY.
+ *
+ * Return: 0 on success or a negative errno code on failure.
+ */
+static int mxl86110_broadcast_cfg(struct phy_device *phydev)
+{
+ return __mxl86110_modify_extended_reg(phydev,
+ MXL86110_EXT_RGMII_MDIO_CFG,
+ MXL86110_RGMII_MDIO_CFG_EPA0_MASK,
+ 0);
+}
+
+/**
+ * mxl86110_enable_led_activity_blink - Enable LEDs activity blink on PHY
+ * @phydev: Pointer to the PHY device structure
+ *
+ * Configure all PHY LEDs to blink on traffic activity regardless of whether
+ * they are ON or OFF. This behavior allows each LED to serve as a pure activity
+ * indicator, independently of its use as a link status indicator.
+ *
+ * By default, each LED blinks only when it is also in the ON state.
+ * This function modifies the appropriate registers (LABx fields)
+ * to enable blinking even when the LEDs are OFF, to allow the LED to be used
+ * as a traffic indicator without requiring it to also serve
+ * as a link status LED.
+ *
+ * Note: Any further LED customization can be performed via the
+ * /sys/class/leds interface; the functions led_hw_is_supported,
+ * led_hw_control_get, and led_hw_control_set are used
+ * to support this mechanism.
+ *
+ * This function assumes the caller already holds the MDIO bus lock
+ * or otherwise has exclusive access to the PHY.
+ *
+ * Return: 0 on success or a negative errno code on failure.
+ */
+static int mxl86110_enable_led_activity_blink(struct phy_device *phydev)
+{
+ int i, ret = 0;
+
+ for (i = 0; i < MXL86110_MAX_LEDS; i++) {
+ ret = __mxl86110_modify_extended_reg(phydev,
+ MXL86110_LED0_CFG_REG + i,
+ 0,
+ MXL86110_LEDX_CFG_BLINK);
+ if (ret < 0)
+ break;
+ }
+
+ return ret;
+}
+
+/**
+ * mxl86110_config_init() - initialize the PHY
+ * @phydev: pointer to the phy_device
+ *
+ * Return: 0 or negative errno code
+ */
+static int mxl86110_config_init(struct phy_device *phydev)
+{
+ u16 val = 0;
+ int ret;
+
+ phy_lock_mdio_bus(phydev);
+
+ /* configure syncE / clk output */
+ ret = mxl86110_synce_clk_cfg(phydev);
+ if (ret < 0)
+ goto out;
+
+ switch (phydev->interface) {
+ case PHY_INTERFACE_MODE_RGMII:
+ val = 0;
+ break;
+ case PHY_INTERFACE_MODE_RGMII_RXID:
+ val = MXL86110_EXT_RGMII_CFG1_RX_DELAY_1950PS;
+ break;
+ case PHY_INTERFACE_MODE_RGMII_TXID:
+ val = MXL86110_EXT_RGMII_CFG1_TX_1G_DELAY_1950PS |
+ MXL86110_EXT_RGMII_CFG1_TX_10MB_100MB_DELAY_1950PS;
+ break;
+ case PHY_INTERFACE_MODE_RGMII_ID:
+ val = MXL86110_EXT_RGMII_CFG1_TX_1G_DELAY_1950PS |
+ MXL86110_EXT_RGMII_CFG1_TX_10MB_100MB_DELAY_1950PS |
+ MXL86110_EXT_RGMII_CFG1_RX_DELAY_1950PS;
+ break;
+ default:
+ ret = -EINVAL;
+ goto out;
+ }
+
+ ret = __mxl86110_modify_extended_reg(phydev,
+ MXL86110_EXT_RGMII_CFG1_REG,
+ MXL86110_EXT_RGMII_CFG1_FULL_MASK,
+ val);
+ if (ret < 0)
+ goto out;
+
+ /* Configure RXDLY (RGMII Rx Clock Delay) to disable
+ * the default additional delay value on RX_CLK
+ * (2 ns for 125 MHz, 8 ns for 25 MHz/2.5 MHz)
+ * and use just the digital one selected before
+ */
+ ret = __mxl86110_modify_extended_reg(phydev,
+ MXL86110_EXT_CHIP_CFG_REG,
+ MXL86110_EXT_CHIP_CFG_RXDLY_ENABLE,
+ 0);
+ if (ret < 0)
+ goto out;
+
+ ret = mxl86110_enable_led_activity_blink(phydev);
+ if (ret < 0)
+ goto out;
+
+ ret = mxl86110_broadcast_cfg(phydev);
+
+out:
+ phy_unlock_mdio_bus(phydev);
+ return ret;
+}
+
+static struct phy_driver mxl_phy_drvs[] = {
+ {
+ PHY_ID_MATCH_EXACT(PHY_ID_MXL86110),
+ .name = "MXL86110 Gigabit Ethernet",
+ .config_init = mxl86110_config_init,
+ .get_wol = mxl86110_get_wol,
+ .set_wol = mxl86110_set_wol,
+ .led_hw_is_supported = mxl86110_led_hw_is_supported,
+ .led_hw_control_get = mxl86110_led_hw_control_get,
+ .led_hw_control_set = mxl86110_led_hw_control_set,
+ },
+};
+
+module_phy_driver(mxl_phy_drvs);
+
+static const struct mdio_device_id __maybe_unused mxl_tbl[] = {
+ { PHY_ID_MATCH_EXACT(PHY_ID_MXL86110) },
+ { }
+};
+
+MODULE_DEVICE_TABLE(mdio, mxl_tbl);
+
+MODULE_DESCRIPTION("MaxLinear MXL86110 PHY driver");
+MODULE_AUTHOR("Stefano Radaelli");
+MODULE_LICENSE("GPL");