Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 540 insertions, 0 deletions

diff --git a/drivers/phy/mediatek/phy-mtk-xsphy.c b/drivers/phy/mediatek/phy-mtk-xsphy.c
new file mode 100644
index 000000000..b222fbbd7
--- /dev/null
+++ b/drivers/phy/mediatek/phy-mtk-xsphy.c
@@ -0,0 +1,540 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * MediaTek USB3.1 gen2 xsphy Driver
+ *
+ * Copyright (c) 2018 MediaTek Inc.
+ * Author: Chunfeng Yun <chunfeng.yun@mediatek.com>
+ *
+ */
+
+#include <dt-bindings/phy/phy.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/iopoll.h>
+#include <linux/module.h>
+#include <linux/of_address.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+
+#include "phy-mtk-io.h"
+
+/* u2 phy banks */
+#define SSUSB_SIFSLV_MISC		0x000
+#define SSUSB_SIFSLV_U2FREQ		0x100
+#define SSUSB_SIFSLV_U2PHY_COM	0x300
+
+/* u3 phy shared banks */
+#define SSPXTP_SIFSLV_DIG_GLB		0x000
+#define SSPXTP_SIFSLV_PHYA_GLB		0x100
+
+/* u3 phy banks */
+#define SSPXTP_SIFSLV_DIG_LN_TOP	0x000
+#define SSPXTP_SIFSLV_DIG_LN_TX0	0x100
+#define SSPXTP_SIFSLV_DIG_LN_RX0	0x200
+#define SSPXTP_SIFSLV_DIG_LN_DAIF	0x300
+#define SSPXTP_SIFSLV_PHYA_LN		0x400
+
+#define XSP_U2FREQ_FMCR0	((SSUSB_SIFSLV_U2FREQ) + 0x00)
+#define P2F_RG_FREQDET_EN	BIT(24)
+#define P2F_RG_CYCLECNT		GENMASK(23, 0)
+
+#define XSP_U2FREQ_MMONR0  ((SSUSB_SIFSLV_U2FREQ) + 0x0c)
+
+#define XSP_U2FREQ_FMMONR1	((SSUSB_SIFSLV_U2FREQ) + 0x10)
+#define P2F_RG_FRCK_EN		BIT(8)
+#define P2F_USB_FM_VALID	BIT(0)
+
+#define XSP_USBPHYACR0	((SSUSB_SIFSLV_U2PHY_COM) + 0x00)
+#define P2A0_RG_INTR_EN	BIT(5)
+
+#define XSP_USBPHYACR1		((SSUSB_SIFSLV_U2PHY_COM) + 0x04)
+#define P2A1_RG_INTR_CAL		GENMASK(23, 19)
+#define P2A1_RG_VRT_SEL			GENMASK(14, 12)
+#define P2A1_RG_TERM_SEL		GENMASK(10, 8)
+
+#define XSP_USBPHYACR5		((SSUSB_SIFSLV_U2PHY_COM) + 0x014)
+#define P2A5_RG_HSTX_SRCAL_EN	BIT(15)
+#define P2A5_RG_HSTX_SRCTRL		GENMASK(14, 12)
+
+#define XSP_USBPHYACR6		((SSUSB_SIFSLV_U2PHY_COM) + 0x018)
+#define P2A6_RG_BC11_SW_EN	BIT(23)
+#define P2A6_RG_OTG_VBUSCMP_EN	BIT(20)
+
+#define XSP_U2PHYDTM1		((SSUSB_SIFSLV_U2PHY_COM) + 0x06C)
+#define P2D_FORCE_IDDIG		BIT(9)
+#define P2D_RG_VBUSVALID	BIT(5)
+#define P2D_RG_SESSEND		BIT(4)
+#define P2D_RG_AVALID		BIT(2)
+#define P2D_RG_IDDIG		BIT(1)
+
+#define SSPXTP_PHYA_GLB_00		((SSPXTP_SIFSLV_PHYA_GLB) + 0x00)
+#define RG_XTP_GLB_BIAS_INTR_CTRL		GENMASK(21, 16)
+
+#define SSPXTP_PHYA_LN_04	((SSPXTP_SIFSLV_PHYA_LN) + 0x04)
+#define RG_XTP_LN0_TX_IMPSEL		GENMASK(4, 0)
+
+#define SSPXTP_PHYA_LN_14	((SSPXTP_SIFSLV_PHYA_LN) + 0x014)
+#define RG_XTP_LN0_RX_IMPSEL		GENMASK(4, 0)
+
+#define XSP_REF_CLK		26	/* MHZ */
+#define XSP_SLEW_RATE_COEF	17
+#define XSP_SR_COEF_DIVISOR	1000
+#define XSP_FM_DET_CYCLE_CNT	1024
+
+struct xsphy_instance {
+	struct phy *phy;
+	void __iomem *port_base;
+	struct clk *ref_clk;	/* reference clock of anolog phy */
+	u32 index;
+	u32 type;
+	/* only for HQA test */
+	int efuse_intr;
+	int efuse_tx_imp;
+	int efuse_rx_imp;
+	/* u2 eye diagram */
+	int eye_src;
+	int eye_vrt;
+	int eye_term;
+};
+
+struct mtk_xsphy {
+	struct device *dev;
+	void __iomem *glb_base;	/* only shared u3 sif */
+	struct xsphy_instance **phys;
+	int nphys;
+	int src_ref_clk; /* MHZ, reference clock for slew rate calibrate */
+	int src_coef;    /* coefficient for slew rate calibrate */
+};
+
+static void u2_phy_slew_rate_calibrate(struct mtk_xsphy *xsphy,
+					struct xsphy_instance *inst)
+{
+	void __iomem *pbase = inst->port_base;
+	int calib_val;
+	int fm_out;
+	u32 tmp;
+
+	/* use force value */
+	if (inst->eye_src)
+		return;
+
+	/* enable USB ring oscillator */
+	mtk_phy_set_bits(pbase + XSP_USBPHYACR5, P2A5_RG_HSTX_SRCAL_EN);
+	udelay(1);	/* wait clock stable */
+
+	/* enable free run clock */
+	mtk_phy_set_bits(pbase + XSP_U2FREQ_FMMONR1, P2F_RG_FRCK_EN);
+
+	/* set cycle count as 1024 */
+	mtk_phy_update_field(pbase + XSP_U2FREQ_FMCR0, P2F_RG_CYCLECNT,
+			     XSP_FM_DET_CYCLE_CNT);
+
+	/* enable frequency meter */
+	mtk_phy_set_bits(pbase + XSP_U2FREQ_FMCR0, P2F_RG_FREQDET_EN);
+
+	/* ignore return value */
+	readl_poll_timeout(pbase + XSP_U2FREQ_FMMONR1, tmp,
+			   (tmp & P2F_USB_FM_VALID), 10, 200);
+
+	fm_out = readl(pbase + XSP_U2FREQ_MMONR0);
+
+	/* disable frequency meter */
+	mtk_phy_clear_bits(pbase + XSP_U2FREQ_FMCR0, P2F_RG_FREQDET_EN);
+
+	/* disable free run clock */
+	mtk_phy_clear_bits(pbase + XSP_U2FREQ_FMMONR1, P2F_RG_FRCK_EN);
+
+	if (fm_out) {
+		/* (1024 / FM_OUT) x reference clock frequency x coefficient */
+		tmp = xsphy->src_ref_clk * xsphy->src_coef;
+		tmp = (tmp * XSP_FM_DET_CYCLE_CNT) / fm_out;
+		calib_val = DIV_ROUND_CLOSEST(tmp, XSP_SR_COEF_DIVISOR);
+	} else {
+		/* if FM detection fail, set default value */
+		calib_val = 3;
+	}
+	dev_dbg(xsphy->dev, "phy.%d, fm_out:%d, calib:%d (clk:%d, coef:%d)\n",
+		inst->index, fm_out, calib_val,
+		xsphy->src_ref_clk, xsphy->src_coef);
+
+	/* set HS slew rate */
+	mtk_phy_update_field(pbase + XSP_USBPHYACR5, P2A5_RG_HSTX_SRCTRL, calib_val);
+
+	/* disable USB ring oscillator */
+	mtk_phy_clear_bits(pbase + XSP_USBPHYACR5, P2A5_RG_HSTX_SRCAL_EN);
+}
+
+static void u2_phy_instance_init(struct mtk_xsphy *xsphy,
+				 struct xsphy_instance *inst)
+{
+	void __iomem *pbase = inst->port_base;
+
+	/* DP/DM BC1.1 path Disable */
+	mtk_phy_clear_bits(pbase + XSP_USBPHYACR6, P2A6_RG_BC11_SW_EN);
+
+	mtk_phy_set_bits(pbase + XSP_USBPHYACR0, P2A0_RG_INTR_EN);
+}
+
+static void u2_phy_instance_power_on(struct mtk_xsphy *xsphy,
+				     struct xsphy_instance *inst)
+{
+	void __iomem *pbase = inst->port_base;
+	u32 index = inst->index;
+
+	mtk_phy_set_bits(pbase + XSP_USBPHYACR6, P2A6_RG_OTG_VBUSCMP_EN);
+
+	mtk_phy_update_bits(pbase + XSP_U2PHYDTM1,
+			    P2D_RG_VBUSVALID | P2D_RG_AVALID | P2D_RG_SESSEND,
+			    P2D_RG_VBUSVALID | P2D_RG_AVALID);
+
+	dev_dbg(xsphy->dev, "%s(%d)\n", __func__, index);
+}
+
+static void u2_phy_instance_power_off(struct mtk_xsphy *xsphy,
+				      struct xsphy_instance *inst)
+{
+	void __iomem *pbase = inst->port_base;
+	u32 index = inst->index;
+
+	mtk_phy_clear_bits(pbase + XSP_USBPHYACR6, P2A6_RG_OTG_VBUSCMP_EN);
+
+	mtk_phy_update_bits(pbase + XSP_U2PHYDTM1,
+			    P2D_RG_VBUSVALID | P2D_RG_AVALID | P2D_RG_SESSEND,
+			    P2D_RG_SESSEND);
+
+	dev_dbg(xsphy->dev, "%s(%d)\n", __func__, index);
+}
+
+static void u2_phy_instance_set_mode(struct mtk_xsphy *xsphy,
+				     struct xsphy_instance *inst,
+				     enum phy_mode mode)
+{
+	u32 tmp;
+
+	tmp = readl(inst->port_base + XSP_U2PHYDTM1);
+	switch (mode) {
+	case PHY_MODE_USB_DEVICE:
+		tmp |= P2D_FORCE_IDDIG | P2D_RG_IDDIG;
+		break;
+	case PHY_MODE_USB_HOST:
+		tmp |= P2D_FORCE_IDDIG;
+		tmp &= ~P2D_RG_IDDIG;
+		break;
+	case PHY_MODE_USB_OTG:
+		tmp &= ~(P2D_FORCE_IDDIG | P2D_RG_IDDIG);
+		break;
+	default:
+		return;
+	}
+	writel(tmp, inst->port_base + XSP_U2PHYDTM1);
+}
+
+static void phy_parse_property(struct mtk_xsphy *xsphy,
+				struct xsphy_instance *inst)
+{
+	struct device *dev = &inst->phy->dev;
+
+	switch (inst->type) {
+	case PHY_TYPE_USB2:
+		device_property_read_u32(dev, "mediatek,efuse-intr",
+					 &inst->efuse_intr);
+		device_property_read_u32(dev, "mediatek,eye-src",
+					 &inst->eye_src);
+		device_property_read_u32(dev, "mediatek,eye-vrt",
+					 &inst->eye_vrt);
+		device_property_read_u32(dev, "mediatek,eye-term",
+					 &inst->eye_term);
+		dev_dbg(dev, "intr:%d, src:%d, vrt:%d, term:%d\n",
+			inst->efuse_intr, inst->eye_src,
+			inst->eye_vrt, inst->eye_term);
+		break;
+	case PHY_TYPE_USB3:
+		device_property_read_u32(dev, "mediatek,efuse-intr",
+					 &inst->efuse_intr);
+		device_property_read_u32(dev, "mediatek,efuse-tx-imp",
+					 &inst->efuse_tx_imp);
+		device_property_read_u32(dev, "mediatek,efuse-rx-imp",
+					 &inst->efuse_rx_imp);
+		dev_dbg(dev, "intr:%d, tx-imp:%d, rx-imp:%d\n",
+			inst->efuse_intr, inst->efuse_tx_imp,
+			inst->efuse_rx_imp);
+		break;
+	default:
+		dev_err(xsphy->dev, "incompatible phy type\n");
+		return;
+	}
+}
+
+static void u2_phy_props_set(struct mtk_xsphy *xsphy,
+			     struct xsphy_instance *inst)
+{
+	void __iomem *pbase = inst->port_base;
+
+	if (inst->efuse_intr)
+		mtk_phy_update_field(pbase + XSP_USBPHYACR1, P2A1_RG_INTR_CAL,
+				     inst->efuse_intr);
+
+	if (inst->eye_src)
+		mtk_phy_update_field(pbase + XSP_USBPHYACR5, P2A5_RG_HSTX_SRCTRL,
+				     inst->eye_src);
+
+	if (inst->eye_vrt)
+		mtk_phy_update_field(pbase + XSP_USBPHYACR1, P2A1_RG_VRT_SEL,
+				     inst->eye_vrt);
+
+	if (inst->eye_term)
+		mtk_phy_update_field(pbase + XSP_USBPHYACR1, P2A1_RG_TERM_SEL,
+				     inst->eye_term);
+}
+
+static void u3_phy_props_set(struct mtk_xsphy *xsphy,
+			     struct xsphy_instance *inst)
+{
+	void __iomem *pbase = inst->port_base;
+
+	if (inst->efuse_intr)
+		mtk_phy_update_field(xsphy->glb_base + SSPXTP_PHYA_GLB_00,
+				     RG_XTP_GLB_BIAS_INTR_CTRL, inst->efuse_intr);
+
+	if (inst->efuse_tx_imp)
+		mtk_phy_update_field(pbase + SSPXTP_PHYA_LN_04,
+				     RG_XTP_LN0_TX_IMPSEL, inst->efuse_tx_imp);
+
+	if (inst->efuse_rx_imp)
+		mtk_phy_update_field(pbase + SSPXTP_PHYA_LN_14,
+				     RG_XTP_LN0_RX_IMPSEL, inst->efuse_rx_imp);
+}
+
+static int mtk_phy_init(struct phy *phy)
+{
+	struct xsphy_instance *inst = phy_get_drvdata(phy);
+	struct mtk_xsphy *xsphy = dev_get_drvdata(phy->dev.parent);
+	int ret;
+
+	ret = clk_prepare_enable(inst->ref_clk);
+	if (ret) {
+		dev_err(xsphy->dev, "failed to enable ref_clk\n");
+		return ret;
+	}
+
+	switch (inst->type) {
+	case PHY_TYPE_USB2:
+		u2_phy_instance_init(xsphy, inst);
+		u2_phy_props_set(xsphy, inst);
+		break;
+	case PHY_TYPE_USB3:
+		u3_phy_props_set(xsphy, inst);
+		break;
+	default:
+		dev_err(xsphy->dev, "incompatible phy type\n");
+		clk_disable_unprepare(inst->ref_clk);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int mtk_phy_power_on(struct phy *phy)
+{
+	struct xsphy_instance *inst = phy_get_drvdata(phy);
+	struct mtk_xsphy *xsphy = dev_get_drvdata(phy->dev.parent);
+
+	if (inst->type == PHY_TYPE_USB2) {
+		u2_phy_instance_power_on(xsphy, inst);
+		u2_phy_slew_rate_calibrate(xsphy, inst);
+	}
+
+	return 0;
+}
+
+static int mtk_phy_power_off(struct phy *phy)
+{
+	struct xsphy_instance *inst = phy_get_drvdata(phy);
+	struct mtk_xsphy *xsphy = dev_get_drvdata(phy->dev.parent);
+
+	if (inst->type == PHY_TYPE_USB2)
+		u2_phy_instance_power_off(xsphy, inst);
+
+	return 0;
+}
+
+static int mtk_phy_exit(struct phy *phy)
+{
+	struct xsphy_instance *inst = phy_get_drvdata(phy);
+
+	clk_disable_unprepare(inst->ref_clk);
+	return 0;
+}
+
+static int mtk_phy_set_mode(struct phy *phy, enum phy_mode mode, int submode)
+{
+	struct xsphy_instance *inst = phy_get_drvdata(phy);
+	struct mtk_xsphy *xsphy = dev_get_drvdata(phy->dev.parent);
+
+	if (inst->type == PHY_TYPE_USB2)
+		u2_phy_instance_set_mode(xsphy, inst, mode);
+
+	return 0;
+}
+
+static struct phy *mtk_phy_xlate(struct device *dev,
+				 struct of_phandle_args *args)
+{
+	struct mtk_xsphy *xsphy = dev_get_drvdata(dev);
+	struct xsphy_instance *inst = NULL;
+	struct device_node *phy_np = args->np;
+	int index;
+
+	if (args->args_count != 1) {
+		dev_err(dev, "invalid number of cells in 'phy' property\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	for (index = 0; index < xsphy->nphys; index++)
+		if (phy_np == xsphy->phys[index]->phy->dev.of_node) {
+			inst = xsphy->phys[index];
+			break;
+		}
+
+	if (!inst) {
+		dev_err(dev, "failed to find appropriate phy\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	inst->type = args->args[0];
+	if (!(inst->type == PHY_TYPE_USB2 ||
+	      inst->type == PHY_TYPE_USB3)) {
+		dev_err(dev, "unsupported phy type: %d\n", inst->type);
+		return ERR_PTR(-EINVAL);
+	}
+
+	phy_parse_property(xsphy, inst);
+
+	return inst->phy;
+}
+
+static const struct phy_ops mtk_xsphy_ops = {
+	.init		= mtk_phy_init,
+	.exit		= mtk_phy_exit,
+	.power_on	= mtk_phy_power_on,
+	.power_off	= mtk_phy_power_off,
+	.set_mode	= mtk_phy_set_mode,
+	.owner		= THIS_MODULE,
+};
+
+static const struct of_device_id mtk_xsphy_id_table[] = {
+	{ .compatible = "mediatek,xsphy", },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, mtk_xsphy_id_table);
+
+static int mtk_xsphy_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct device_node *np = dev->of_node;
+	struct device_node *child_np;
+	struct phy_provider *provider;
+	struct resource *glb_res;
+	struct mtk_xsphy *xsphy;
+	struct resource res;
+	int port, retval;
+
+	xsphy = devm_kzalloc(dev, sizeof(*xsphy), GFP_KERNEL);
+	if (!xsphy)
+		return -ENOMEM;
+
+	xsphy->nphys = of_get_child_count(np);
+	xsphy->phys = devm_kcalloc(dev, xsphy->nphys,
+				       sizeof(*xsphy->phys), GFP_KERNEL);
+	if (!xsphy->phys)
+		return -ENOMEM;
+
+	xsphy->dev = dev;
+	platform_set_drvdata(pdev, xsphy);
+
+	glb_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	/* optional, may not exist if no u3 phys */
+	if (glb_res) {
+		/* get banks shared by multiple u3 phys */
+		xsphy->glb_base = devm_ioremap_resource(dev, glb_res);
+		if (IS_ERR(xsphy->glb_base)) {
+			dev_err(dev, "failed to remap glb regs\n");
+			return PTR_ERR(xsphy->glb_base);
+		}
+	}
+
+	xsphy->src_ref_clk = XSP_REF_CLK;
+	xsphy->src_coef = XSP_SLEW_RATE_COEF;
+	/* update parameters of slew rate calibrate if exist */
+	device_property_read_u32(dev, "mediatek,src-ref-clk-mhz",
+				 &xsphy->src_ref_clk);
+	device_property_read_u32(dev, "mediatek,src-coef", &xsphy->src_coef);
+
+	port = 0;
+	for_each_child_of_node(np, child_np) {
+		struct xsphy_instance *inst;
+		struct phy *phy;
+
+		inst = devm_kzalloc(dev, sizeof(*inst), GFP_KERNEL);
+		if (!inst) {
+			retval = -ENOMEM;
+			goto put_child;
+		}
+
+		xsphy->phys[port] = inst;
+
+		phy = devm_phy_create(dev, child_np, &mtk_xsphy_ops);
+		if (IS_ERR(phy)) {
+			dev_err(dev, "failed to create phy\n");
+			retval = PTR_ERR(phy);
+			goto put_child;
+		}
+
+		retval = of_address_to_resource(child_np, 0, &res);
+		if (retval) {
+			dev_err(dev, "failed to get address resource(id-%d)\n",
+				port);
+			goto put_child;
+		}
+
+		inst->port_base = devm_ioremap_resource(&phy->dev, &res);
+		if (IS_ERR(inst->port_base)) {
+			dev_err(dev, "failed to remap phy regs\n");
+			retval = PTR_ERR(inst->port_base);
+			goto put_child;
+		}
+
+		inst->phy = phy;
+		inst->index = port;
+		phy_set_drvdata(phy, inst);
+		port++;
+
+		inst->ref_clk = devm_clk_get(&phy->dev, "ref");
+		if (IS_ERR(inst->ref_clk)) {
+			dev_err(dev, "failed to get ref_clk(id-%d)\n", port);
+			retval = PTR_ERR(inst->ref_clk);
+			goto put_child;
+		}
+	}
+
+	provider = devm_of_phy_provider_register(dev, mtk_phy_xlate);
+	return PTR_ERR_OR_ZERO(provider);
+
+put_child:
+	of_node_put(child_np);
+	return retval;
+}
+
+static struct platform_driver mtk_xsphy_driver = {
+	.probe		= mtk_xsphy_probe,
+	.driver		= {
+		.name	= "mtk-xsphy",
+		.of_match_table = mtk_xsphy_id_table,
+	},
+};
+
+module_platform_driver(mtk_xsphy_driver);
+
+MODULE_AUTHOR("Chunfeng Yun <chunfeng.yun@mediatek.com>");
+MODULE_DESCRIPTION("MediaTek USB XS-PHY driver");
+MODULE_LICENSE("GPL v2");