[PATCH] net: phy: add TI DP83869HM ethernet driver

[Christian Gmeiner <christian.gmeiner@gmail.com>]

From: Dominic Rath <rath@ibv-augsburg.net>

This driver is based on an older downstream TI kernel, with
changes and cleanups to work with mainline device-tree bindings.

Signed-off-by: Dominic Rath <rath@ibv-augsburg.net>
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
---
 drivers/net/phy/Kconfig              |   6 +
 drivers/net/phy/Makefile             |   1 +
 drivers/net/phy/dp83869.c            | 507 +++++++++++++++++++++++++++
 drivers/net/phy/ti_phy_init.c        |   4 +
 drivers/net/phy/ti_phy_init.h        |   1 +
 include/dt-bindings/net/ti-dp83869.h |  60 ++++
 6 files changed, 579 insertions(+)
 create mode 100644 drivers/net/phy/dp83869.c
 create mode 100644 include/dt-bindings/net/ti-dp83869.h

diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index 68ee7d7a2d..c6e58058d9 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -290,6 +290,12 @@ config PHY_TI_DP83867
 	---help---
 	  Adds support for the TI DP83867 1Gbit PHY.
 
+config PHY_TI_DP83869
+	select PHY_TI
+	bool "Texas Instruments Ethernet DP83869 PHY support"
+	---help---
+	  Adds support for the TI DP83869 1Gbit PHY.
+
 config PHY_TI_GENERIC
 	select PHY_TI
 	bool "Texas Instruments Generic Ethernet PHYs support"
diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile
index 218b8c7669..77f7f60621 100644
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -29,6 +29,7 @@ obj-$(CONFIG_PHY_SMSC) += smsc.o
 obj-$(CONFIG_PHY_TERANETICS) += teranetics.o
 obj-$(CONFIG_PHY_TI) += ti_phy_init.o
 obj-$(CONFIG_PHY_TI_DP83867) += dp83867.o
+obj-$(CONFIG_PHY_TI_DP83869) += dp83869.o
 obj-$(CONFIG_PHY_XILINX) += xilinx_phy.o
 obj-$(CONFIG_PHY_XILINX_GMII2RGMII) += xilinx_gmii2rgmii.o
 obj-$(CONFIG_PHY_VITESSE) += vitesse.o
diff --git a/drivers/net/phy/dp83869.c b/drivers/net/phy/dp83869.c
new file mode 100644
index 0000000000..c9461185cf
--- /dev/null
+++ b/drivers/net/phy/dp83869.c
@@ -0,0 +1,507 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * TI PHY drivers
+ *
+ */
+
+#include <common.h>
+#include <phy.h>
+#include <linux/compat.h>
+#include <malloc.h>
+
+#include <dm.h>
+#include <dt-bindings/net/ti-dp83869.h>
+
+/* TI DP83869 */
+#define DP83869_DEVADDR		0x1f
+
+#define MII_DP83869_PHYCTRL	0x10
+#define MII_DP83869_MICR	0x12
+#define MII_DP83869_CFG2	0x14
+#define MII_DP83869_BISCR	0x16
+#define DP83869_CTRL		0x1f
+#define DP83869_CFG4		0x1e
+
+/* Extended Registers */
+#define DP83869_GEN_CFG3	0x0031
+#define DP83869_RGMIICTL	0x0032
+#define DP83869_STRAP_STS1	0x006E
+#define DP83869_RGMIIDCTL	0x0086
+#define DP83869_IO_MUX_CFG	0x0170
+#define DP83869_OP_MODE		0x01df
+#define DP83869_FX_CTRL		0x0c00
+
+#define DP83869_SW_RESET	BIT(15)
+#define DP83869_SW_RESTART	BIT(14)
+
+/* MICR Interrupt bits */
+#define MII_DP83869_MICR_AN_ERR_INT_EN		BIT(15)
+#define MII_DP83869_MICR_SPEED_CHNG_INT_EN	BIT(14)
+#define MII_DP83869_MICR_DUP_MODE_CHNG_INT_EN	BIT(13)
+#define MII_DP83869_MICR_PAGE_RXD_INT_EN	BIT(12)
+#define MII_DP83869_MICR_AUTONEG_COMP_INT_EN	BIT(11)
+#define MII_DP83869_MICR_LINK_STS_CHNG_INT_EN	BIT(10)
+#define MII_DP83869_MICR_FALSE_CARRIER_INT_EN	BIT(8)
+#define MII_DP83869_MICR_SLEEP_MODE_CHNG_INT_EN	BIT(4)
+#define MII_DP83869_MICR_WOL_INT_EN		BIT(3)
+#define MII_DP83869_MICR_XGMII_ERR_INT_EN	BIT(2)
+#define MII_DP83869_MICR_POL_CHNG_INT_EN	BIT(1)
+#define MII_DP83869_MICR_JABBER_INT_EN		BIT(0)
+
+#define MII_DP83869_BMCR_DEFAULT		(BMCR_ANENABLE | \
+						 BMCR_FULLDPLX | \
+						 BMCR_SPEED1000)
+
+/* This is the same bit mask as the BMCR so re-use the BMCR default */
+#define DP83869_FX_CTRL_DEFAULT MII_DP83869_BMCR_DEFAULT
+
+/* CFG1 bits */
+#define DP83869_CFG1_DEFAULT			(ADVERTISE_1000HALF | \
+						 ADVERTISE_1000FULL | \
+						 CTL1000_AS_MASTER)
+
+/* RGMIICTL bits */
+#define DP83869_RGMII_TX_CLK_DELAY_EN		BIT(1)
+#define DP83869_RGMII_RX_CLK_DELAY_EN		BIT(0)
+
+/* STRAP_STS1 bits */
+#define DP83869_STRAP_OP_MODE_MASK		GENMASK(2, 0)
+#define DP83869_STRAP_STS1_RESERVED		BIT(11)
+#define DP83869_STRAP_MIRROR_ENABLED		BIT(12)
+
+/* PHY CTRL bits */
+#define DP83869_PHYCR_RX_FIFO_DEPTH_SHIFT		12
+#define DP83869_PHYCR_RX_FIFO_DEPTH_MASK		GENMASK(13, 12)
+#define DP83869_PHYCR_TX_FIFO_DEPTH_SHIFT		14
+#define DP83869_PHYCR_TX_FIFO_DEPTH_MASK		GENMASK(15, 14)
+#define DP83869_PHYCR_RESERVED_MASK			BIT(11)
+#define DP83869_PHYCR_MDI_CROSSOVER_SHIFT		5
+#define DP83869_PHYCR_MDI_CROSSOVER_MDIX		2
+#define DP83869_PHY_CTRL_DEFAULT			0x48
+
+/* RGMIIDCTL bits */
+#define DP83869_RGMII_TX_CLK_DELAY_SHIFT	4
+#define DP83869_CLK_DELAY_DEF				7
+
+/* CFG2 bits */
+#define MII_DP83869_CFG2_SPEEDOPT_10EN		0x0040
+#define MII_DP83869_CFG2_SGMII_AUTONEGEN	0x0080
+#define MII_DP83869_CFG2_SPEEDOPT_ENH		0x0100
+#define MII_DP83869_CFG2_SPEEDOPT_CNT		0x0800
+#define MII_DP83869_CFG2_SPEEDOPT_INTLOW	0x2000
+#define MII_DP83869_CFG2_MASK			0x003F
+
+/* User setting - can be taken from DTS */
+#define DEFAULT_FIFO_DEPTH	DP83869_PHYCR_FIFO_DEPTH_4_B_NIB
+
+/* IO_MUX_CFG bits */
+#define DP83869_IO_MUX_CFG_IO_IMPEDANCE_CTRL	0x1f
+
+#define DP83869_IO_MUX_CFG_IO_IMPEDANCE_MAX	0x0
+#define DP83869_IO_MUX_CFG_IO_IMPEDANCE_MIN	0x1f
+#define DP83869_IO_MUX_CFG_CLK_O_DISABLE	BIT(6)
+#define DP83869_IO_MUX_CFG_CLK_O_SEL_SHIFT	8
+#define DP83869_IO_MUX_CFG_CLK_O_SEL_MASK	\
+		GENMASK(0x1f, DP83869_IO_MUX_CFG_CLK_O_SEL_SHIFT)
+
+/* CFG3 bits */
+#define DP83869_CFG3_PORT_MIRROR_EN		BIT(0)
+
+/* OP MODE bits */
+#define DP83869_OP_MODE_MII			BIT(5)
+#define DP83869_SGMII_RGMII_BRIDGE		BIT(6)
+
+enum {
+	DP83869_PORT_MIRRORING_KEEP,
+	DP83869_PORT_MIRRORING_EN,
+	DP83869_PORT_MIRRORING_DIS,
+};
+
+struct dp83869_private {
+	int tx_fifo_depth;
+	int rx_fifo_depth;
+	s32 rx_int_delay;
+	s32 tx_int_delay;
+	int io_impedance;
+	int port_mirroring;
+	bool set_clk_output;
+	int clk_output_sel;
+	int mode;
+};
+
+static int dp83869_readext(struct phy_device *phydev, int addr, int devad, int reg)
+{
+	return phy_read_mmd(phydev, devad, reg);
+}
+
+static int dp83869_writeext(struct phy_device *phydev, int addr, int devad, int reg, u16 val)
+{
+	return phy_write_mmd(phydev, devad, reg, val);
+}
+
+static int dp83869_config_port_mirroring(struct phy_device *phydev)
+{
+	struct dp83869_private *dp83869 =
+		(struct dp83869_private *)phydev->priv;
+	u16 val;
+
+	val = phy_read_mmd(phydev, DP83869_DEVADDR, DP83869_CFG4);
+
+	if (dp83869->port_mirroring == DP83869_PORT_MIRRORING_EN)
+		val |= DP83869_CFG3_PORT_MIRROR_EN;
+	else
+		val &= ~DP83869_CFG3_PORT_MIRROR_EN;
+
+	phy_write_mmd(phydev, DP83869_DEVADDR, DP83869_CFG4, val);
+
+	return 0;
+}
+
+#ifdef CONFIG_DM_ETH
+static const int dp83869_internal_delay[] = {250, 500, 750, 1000, 1250, 1500,
+					     1750, 2000, 2250, 2500, 2750, 3000,
+					     3250, 3500, 3750, 4000};
+
+static int dp83869_set_strapped_mode(struct phy_device *phydev)
+{
+	struct dp83869_private *dp83869 = phydev->priv;
+	int val;
+
+	val = phy_read_mmd(phydev, DP83869_DEVADDR, DP83869_STRAP_STS1);
+	if (val < 0)
+		return val;
+
+	dp83869->mode = val & DP83869_STRAP_OP_MODE_MASK;
+
+	return 0;
+}
+
+/**
+ * dp83869_data_init - Convenience function for setting PHY specific data
+ *
+ * @phydev: the phy_device struct
+ */
+static int dp83869_of_init(struct phy_device *phydev)
+{
+	struct dp83869_private * const dp83869 = phydev->priv;
+	const int delay_entries = ARRAY_SIZE(dp83869_internal_delay);
+	int ret;
+	ofnode node;
+
+	node = phy_get_ofnode(phydev);
+	if (!ofnode_valid(node))
+		return -EINVAL;
+
+	dp83869->io_impedance = -EINVAL;
+
+	/* Optional configuration, set to default if required */
+	dp83869->clk_output_sel = ofnode_read_u32_default(node, "ti,clk-output-sel",
+							  DP83869_CLK_O_SEL_CHN_A_RCLK);
+
+	if (dp83869->clk_output_sel > DP83869_CLK_O_SEL_REF_CLK &&
+	    dp83869->clk_output_sel != DP83869_CLK_O_SEL_OFF)
+		dp83869->clk_output_sel = DP83869_CLK_O_SEL_REF_CLK;
+
+	/* If operation mode is not set use setting from straps */
+	ret = ofnode_read_s32(node, "ti,op-mode", &dp83869->mode);
+	if (ret == 0) {
+		if (dp83869->mode < DP83869_RGMII_COPPER_ETHERNET ||
+		    dp83869->mode > DP83869_SGMII_COPPER_ETHERNET)
+			return -EINVAL;
+	} else {
+		ret = dp83869_set_strapped_mode(phydev);
+		if (ret)
+			return ret;
+	}
+
+	if (ofnode_read_bool(node, "ti,max-output-impedance"))
+		dp83869->io_impedance = DP83869_IO_MUX_CFG_IO_IMPEDANCE_MAX;
+	else if (ofnode_read_bool(node, "ti,min-output-impedance"))
+		dp83869->io_impedance = DP83869_IO_MUX_CFG_IO_IMPEDANCE_MIN;
+
+	if (ofnode_read_bool(node, "enet-phy-lane-swap")) {
+		dp83869->port_mirroring = DP83869_PORT_MIRRORING_EN;
+	} else {
+		ret = phy_read_mmd(phydev, DP83869_DEVADDR, DP83869_STRAP_STS1);
+
+		if (ret < 0)
+			return ret;
+
+		if (ret & DP83869_STRAP_MIRROR_ENABLED)
+			dp83869->port_mirroring = DP83869_PORT_MIRRORING_EN;
+		else
+			dp83869->port_mirroring = DP83869_PORT_MIRRORING_DIS;
+	}
+
+	dp83869->rx_fifo_depth = ofnode_read_s32_default(node, "rx-fifo-depth",
+							 DP83869_PHYCR_FIFO_DEPTH_4_B_NIB);
+
+	dp83869->tx_fifo_depth = ofnode_read_s32_default(node, "tx-fifo-depth",
+							 DP83869_PHYCR_FIFO_DEPTH_4_B_NIB);
+
+	/* RX delay *must* be specified if internal delay of RX is used. */
+	if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID ||
+	    phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) {
+		dp83869->rx_int_delay = ofnode_read_u32_default(node, "rx-internal-delay-ps",
+								DP83869_CLK_DELAY_DEF);
+		if (dp83869->rx_int_delay > delay_entries) {
+			dp83869->rx_int_delay = DP83869_CLK_DELAY_DEF;
+			pr_debug("rx-internal-delay-ps not set/invalid, default to %ups\n",
+				 dp83869_internal_delay[dp83869->rx_int_delay]);
+		}
+
+		dp83869->rx_int_delay = dp83869_internal_delay[dp83869->rx_int_delay];
+	}
+
+	/* TX delay *must* be specified if internal delay of RX is used. */
+	if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID ||
+	    phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) {
+		dp83869->tx_int_delay = ofnode_read_u32_default(node, "tx-internal-delay-ps",
+								DP83869_CLK_DELAY_DEF);
+		if (dp83869->tx_int_delay > delay_entries) {
+			dp83869->tx_int_delay = DP83869_CLK_DELAY_DEF;
+			pr_debug("tx-internal-delay-ps not set/invalid, default to %ups\n",
+				 dp83869_internal_delay[dp83869->tx_int_delay]);
+		}
+
+		dp83869->tx_int_delay = dp83869_internal_delay[dp83869->tx_int_delay];
+	}
+
+	return 0;
+}
+#else
+static int dp83869_of_init(struct phy_device *phydev)
+{
+	struct dp83869_private *dp83869 = phydev->priv;
+
+	dp83869->rx_int_delay = DP83869_RGMIIDCTL_2_25_NS;
+	dp83869->tx_int_delay = DP83869_RGMIIDCTL_2_75_NS;
+	dp83869->fifo_depth = DEFAULT_FIFO_DEPTH;
+	dp83869->io_impedance = -EINVAL;
+
+	return 0;
+}
+#endif /* CONFIG_OF_MDIO */
+
+static int dp83869_configure_rgmii(struct phy_device *phydev,
+				   struct dp83869_private *dp83869)
+{
+	int ret = 0, val;
+
+	if (phy_interface_is_rgmii(phydev)) {
+		val = phy_read(phydev, MDIO_DEVAD_NONE, MII_DP83869_PHYCTRL);
+		if (val < 0)
+			return val;
+
+		val &= ~(DP83869_PHYCR_TX_FIFO_DEPTH_MASK | DP83869_PHYCR_RX_FIFO_DEPTH_MASK);
+		val |= (dp83869->tx_fifo_depth << DP83869_PHYCR_TX_FIFO_DEPTH_SHIFT);
+		val |= (dp83869->rx_fifo_depth << DP83869_PHYCR_RX_FIFO_DEPTH_SHIFT);
+
+		ret = phy_write(phydev, MDIO_DEVAD_NONE, MII_DP83869_PHYCTRL, val);
+		if (ret)
+			return ret;
+	}
+
+	if (dp83869->io_impedance >= 0) {
+		val = phy_read_mmd(phydev, DP83869_DEVADDR, DP83869_IO_MUX_CFG);
+
+		val &= ~DP83869_IO_MUX_CFG_IO_IMPEDANCE_CTRL;
+		val |= dp83869->io_impedance & DP83869_IO_MUX_CFG_IO_IMPEDANCE_CTRL;
+
+		ret = phy_write_mmd(phydev, DP83869_DEVADDR, DP83869_IO_MUX_CFG, val);
+
+		if (ret)
+			return ret;
+	}
+
+	return ret;
+}
+
+static int dp83869_configure_mode(struct phy_device *phydev,
+				  struct dp83869_private *dp83869)
+{
+	int phy_ctrl_val;
+	int ret, val;
+
+	if (dp83869->mode < DP83869_RGMII_COPPER_ETHERNET ||
+	    dp83869->mode > DP83869_SGMII_COPPER_ETHERNET)
+		return -EINVAL;
+
+	/* Below init sequence for each operational mode is defined in
+	 * section 9.4.8 of the datasheet.
+	 */
+	ret = phy_write_mmd(phydev, DP83869_DEVADDR, DP83869_OP_MODE,
+			    dp83869->mode);
+	if (ret)
+		return ret;
+
+	ret = phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, MII_DP83869_BMCR_DEFAULT);
+	if (ret)
+		return ret;
+
+	phy_ctrl_val = (dp83869->rx_fifo_depth << DP83869_PHYCR_RX_FIFO_DEPTH_SHIFT |
+			dp83869->tx_fifo_depth << DP83869_PHYCR_TX_FIFO_DEPTH_SHIFT |
+			DP83869_PHY_CTRL_DEFAULT);
+
+	switch (dp83869->mode) {
+	case DP83869_RGMII_COPPER_ETHERNET:
+		ret = phy_write(phydev, MDIO_DEVAD_NONE, MII_DP83869_PHYCTRL,
+				phy_ctrl_val);
+		if (ret)
+			return ret;
+
+		ret = phy_write(phydev, MDIO_DEVAD_NONE, MII_CTRL1000, DP83869_CFG1_DEFAULT);
+		if (ret)
+			return ret;
+
+		ret = dp83869_configure_rgmii(phydev, dp83869);
+		if (ret)
+			return ret;
+		break;
+	case DP83869_RGMII_SGMII_BRIDGE:
+		val = phy_read_mmd(phydev, DP83869_DEVADDR, DP83869_OP_MODE);
+
+		val |= DP83869_SGMII_RGMII_BRIDGE;
+
+		ret = phy_write_mmd(phydev, DP83869_DEVADDR, DP83869_OP_MODE, val);
+
+		if (ret)
+			return ret;
+
+		ret = phy_write_mmd(phydev, DP83869_DEVADDR,
+				    DP83869_FX_CTRL, DP83869_FX_CTRL_DEFAULT);
+		if (ret)
+			return ret;
+
+		break;
+	case DP83869_1000M_MEDIA_CONVERT:
+		ret = phy_write(phydev, MDIO_DEVAD_NONE, MII_DP83869_PHYCTRL,
+				phy_ctrl_val);
+		if (ret)
+			return ret;
+
+		ret = phy_write_mmd(phydev, DP83869_DEVADDR,
+				    DP83869_FX_CTRL, DP83869_FX_CTRL_DEFAULT);
+		if (ret)
+			return ret;
+		break;
+	case DP83869_100M_MEDIA_CONVERT:
+		ret = phy_write(phydev, MDIO_DEVAD_NONE, MII_DP83869_PHYCTRL,
+				phy_ctrl_val);
+		if (ret)
+			return ret;
+		break;
+	case DP83869_SGMII_COPPER_ETHERNET:
+		ret = phy_write(phydev, MDIO_DEVAD_NONE, MII_DP83869_PHYCTRL,
+				phy_ctrl_val);
+		if (ret)
+			return ret;
+
+		ret = phy_write(phydev, MDIO_DEVAD_NONE, MII_CTRL1000, DP83869_CFG1_DEFAULT);
+		if (ret)
+			return ret;
+
+		ret = phy_write_mmd(phydev, DP83869_DEVADDR,
+				    DP83869_FX_CTRL, DP83869_FX_CTRL_DEFAULT);
+		if (ret)
+			return ret;
+
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return ret;
+}
+
+static int dp83869_config(struct phy_device *phydev)
+{
+	struct dp83869_private *dp83869;
+	unsigned int val;
+	int ret;
+
+	dp83869 = (struct dp83869_private *)phydev->priv;
+
+	ret = dp83869_of_init(phydev);
+	if (ret)
+		return ret;
+
+	ret = dp83869_configure_mode(phydev, dp83869);
+	if (ret)
+		return ret;
+
+	if (dp83869->port_mirroring != DP83869_PORT_MIRRORING_KEEP)
+		dp83869_config_port_mirroring(phydev);
+
+	/* Clock output selection if muxing property is set */
+	if (dp83869->clk_output_sel != DP83869_CLK_O_SEL_REF_CLK) {
+		val = phy_read_mmd(phydev, DP83869_DEVADDR, DP83869_IO_MUX_CFG);
+
+		val &= ~DP83869_IO_MUX_CFG_CLK_O_SEL_MASK;
+		val |= dp83869->clk_output_sel << DP83869_IO_MUX_CFG_CLK_O_SEL_SHIFT;
+
+		ret = phy_write_mmd(phydev, DP83869_DEVADDR, DP83869_IO_MUX_CFG, val);
+
+		if (ret)
+			return ret;
+	}
+
+	if (phy_interface_is_rgmii(phydev)) {
+		ret = phy_write_mmd(phydev, DP83869_DEVADDR, DP83869_RGMIIDCTL,
+				    dp83869->rx_int_delay |
+			dp83869->tx_int_delay << DP83869_RGMII_TX_CLK_DELAY_SHIFT);
+		if (ret)
+			return ret;
+
+		val = phy_read_mmd(phydev, DP83869_DEVADDR, DP83869_RGMIICTL);
+		val |= (DP83869_RGMII_TX_CLK_DELAY_EN |
+			DP83869_RGMII_RX_CLK_DELAY_EN);
+
+		if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID)
+			val &= ~(DP83869_RGMII_TX_CLK_DELAY_EN |
+				 DP83869_RGMII_RX_CLK_DELAY_EN);
+
+		if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)
+			val &= ~DP83869_RGMII_TX_CLK_DELAY_EN;
+
+		if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID)
+			val &= ~DP83869_RGMII_RX_CLK_DELAY_EN;
+
+		ret = phy_write_mmd(phydev, DP83869_DEVADDR, DP83869_RGMIICTL,
+				    val);
+	}
+
+	genphy_config_aneg(phydev);
+	return 0;
+}
+
+static int dp83869_probe(struct phy_device *phydev)
+{
+	struct dp83869_private *dp83869;
+
+	dp83869 = kzalloc(sizeof(*dp83869), GFP_KERNEL);
+	if (!dp83869)
+		return -ENOMEM;
+
+	phydev->priv = dp83869;
+	return 0;
+}
+
+static struct phy_driver DP83869_driver = {
+	.name = "TI DP83869",
+	.uid = 0x2000a0f1,
+	.mask = 0xfffffff0,
+	.features = PHY_GBIT_FEATURES,
+	.probe = dp83869_probe,
+	.config = &dp83869_config,
+	.startup = &genphy_startup,
+	.shutdown = &genphy_shutdown,
+	.readext = dp83869_readext,
+	.writeext = dp83869_writeext
+};
+
+int phy_dp83869_init(void)
+{
+	phy_register(&DP83869_driver);
+	return 0;
+}
diff --git a/drivers/net/phy/ti_phy_init.c b/drivers/net/phy/ti_phy_init.c
index 50eff77692..075b19a39f 100644
--- a/drivers/net/phy/ti_phy_init.c
+++ b/drivers/net/phy/ti_phy_init.c
@@ -88,6 +88,10 @@ int phy_ti_init(void)
 	phy_dp83867_init();
 #endif
 
+#ifdef CONFIG_PHY_TI_DP83869
+	phy_dp83869_init();
+#endif
+
 #ifdef CONFIG_PHY_TI_GENERIC
 	phy_register(&dp83822_driver);
 	phy_register(&dp83825s_driver);
diff --git a/drivers/net/phy/ti_phy_init.h b/drivers/net/phy/ti_phy_init.h
index 6c7f6c640a..bcb3d320d3 100644
--- a/drivers/net/phy/ti_phy_init.h
+++ b/drivers/net/phy/ti_phy_init.h
@@ -11,5 +11,6 @@
 #define _TI_GEN_PHY_H
 
 int phy_dp83867_init(void);
+int phy_dp83869_init(void);
 
 #endif /* _TI_GEN_PHY_H */
diff --git a/include/dt-bindings/net/ti-dp83869.h b/include/dt-bindings/net/ti-dp83869.h
new file mode 100644
index 0000000000..b3a5ac4a17
--- /dev/null
+++ b/include/dt-bindings/net/ti-dp83869.h
@@ -0,0 +1,60 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * TI DP83869 PHY drivers
+ *
+ */
+
+#ifndef _DT_BINDINGS_TI_DP83869_H
+#define _DT_BINDINGS_TI_DP83869_H
+
+/* PHY CTRL bits */
+#define DP83869_PHYCR_FIFO_DEPTH_3_B_NIB	0x00
+#define DP83869_PHYCR_FIFO_DEPTH_4_B_NIB	0x01
+#define DP83869_PHYCR_FIFO_DEPTH_6_B_NIB	0x02
+#define DP83869_PHYCR_FIFO_DEPTH_8_B_NIB	0x03
+
+/* RGMIIDCTL internal delay for rx and tx */
+#define DP83869_RGMIIDCTL_250_PS	0x0
+#define DP83869_RGMIIDCTL_500_PS	0x1
+#define DP83869_RGMIIDCTL_750_PS	0x2
+#define DP83869_RGMIIDCTL_1_NS		0x3
+#define DP83869_RGMIIDCTL_1_25_NS	0x4
+#define DP83869_RGMIIDCTL_1_50_NS	0x5
+#define DP83869_RGMIIDCTL_1_75_NS	0x6
+#define DP83869_RGMIIDCTL_2_00_NS	0x7
+#define DP83869_RGMIIDCTL_2_25_NS	0x8
+#define DP83869_RGMIIDCTL_2_50_NS	0x9
+#define DP83869_RGMIIDCTL_2_75_NS	0xa
+#define DP83869_RGMIIDCTL_3_00_NS	0xb
+#define DP83869_RGMIIDCTL_3_25_NS	0xc
+#define DP83869_RGMIIDCTL_3_50_NS	0xd
+#define DP83869_RGMIIDCTL_3_75_NS	0xe
+#define DP83869_RGMIIDCTL_4_00_NS	0xf
+
+/* IO_MUX_CFG - Clock output selection */
+#define DP83869_CLK_O_SEL_CHN_A_RCLK		0x0
+#define DP83869_CLK_O_SEL_CHN_B_RCLK		0x1
+#define DP83869_CLK_O_SEL_CHN_C_RCLK		0x2
+#define DP83869_CLK_O_SEL_CHN_D_RCLK		0x3
+#define DP83869_CLK_O_SEL_CHN_A_RCLK_DIV5	0x4
+#define DP83869_CLK_O_SEL_CHN_B_RCLK_DIV5	0x5
+#define DP83869_CLK_O_SEL_CHN_C_RCLK_DIV5	0x6
+#define DP83869_CLK_O_SEL_CHN_D_RCLK_DIV5	0x7
+#define DP83869_CLK_O_SEL_CHN_A_TCLK		0x8
+#define DP83869_CLK_O_SEL_CHN_B_TCLK		0x9
+#define DP83869_CLK_O_SEL_CHN_C_TCLK		0xA
+#define DP83869_CLK_O_SEL_CHN_D_TCLK		0xB
+#define DP83869_CLK_O_SEL_REF_CLK		0xC
+/* Special flag to indicate clock should be off */
+#define DP83869_CLK_O_SEL_OFF			0xFFFFFFFF
+
+/* OPMODE - Operation mode */
+#define DP83869_RGMII_COPPER_ETHERNET		0x00
+#define DP83869_RGMII_1000_BASE			0x01
+#define DP83869_RGMII_100_BASE			0x02
+#define DP83869_RGMII_SGMII_BRIDGE		0x03
+#define DP83869_1000M_MEDIA_CONVERT		0x04
+#define DP83869_100M_MEDIA_CONVERT		0x05
+#define DP83869_SGMII_COPPER_ETHERNET		0x06
+
+#endif
-- 
2.33.1