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openwrt/target/linux/generic/backport-6.1/716-v6.9-07-net-phy-qcom-add-support-for-QCA807x-PHY-Family.patch
Christian Marangi 16364e4100
generic: 6.1: backport QCA807x PHY patches 
Backport QCA807x PHY patches merged upstream that introduce the new
concept of PHY package.

Also add in generic config the new Kconfig CONFIG_QCA807X_PHY.

All affected patch automatically refreshed with make
target/linux/refresh.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2024-02-11 21:08:26 +01:00

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From d1cb613efbd3cd7d0c000167816beb3f248f5eb8 Mon Sep 17 00:00:00 2001
From: Robert Marko <robert.marko@sartura.hr>
Date: Tue, 6 Feb 2024 18:31:10 +0100
Subject: [PATCH 07/10] net: phy: qcom: add support for QCA807x PHY Family
This adds driver for the Qualcomm QCA8072 and QCA8075 PHY-s.
They are 2 or 5 port IEEE 802.3 clause 22 compliant 10BASE-Te,
100BASE-TX and 1000BASE-T PHY-s.
They feature 2 SerDes, one for PSGMII or QSGMII connection with
MAC, while second one is SGMII for connection to MAC or fiber.
Both models have a combo port that supports 1000BASE-X and
100BASE-FX fiber.
PHY package can be configured in 3 mode following this table:
First Serdes mode Second Serdes mode
Option 1 PSGMII for copper Disabled
ports 0-4
Option 2 PSGMII for copper 1000BASE-X / 100BASE-FX
ports 0-4
Option 3 QSGMII for copper SGMII for
ports 0-3 copper port 4
Each PHY inside of QCA807x series has 4 digitally controlled
output only pins that natively drive LED-s.
But some vendors used these to driver generic LED-s controlled
by userspace, so lets enable registering each PHY as GPIO
controller and add driver for it.
These are commonly used in Qualcomm IPQ40xx, IPQ60xx and IPQ807x
boards.
Co-developed-by: Christian Marangi <ansuelsmth@gmail.com>
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/phy/qcom/Kconfig | 8 +
drivers/net/phy/qcom/Makefile | 1 +
drivers/net/phy/qcom/qca807x.c | 597 +++++++++++++++++++++++++++++++++
3 files changed, 606 insertions(+)
create mode 100644 drivers/net/phy/qcom/qca807x.c
--- a/drivers/net/phy/qcom/Kconfig
+++ b/drivers/net/phy/qcom/Kconfig
@@ -20,3 +20,11 @@ config QCA808X_PHY
select QCOM_NET_PHYLIB
help
Currently supports the QCA8081 model
+
+config QCA807X_PHY
+ tristate "Qualcomm QCA807x PHYs"
+ select QCOM_NET_PHYLIB
+ depends on OF_MDIO
+ help
+ Currently supports the Qualcomm QCA8072, QCA8075 and the PSGMII
+ control PHY.
--- a/drivers/net/phy/qcom/Makefile
+++ b/drivers/net/phy/qcom/Makefile
@@ -3,3 +3,4 @@ obj-$(CONFIG_QCOM_NET_PHYLIB) += qcom-ph
obj-$(CONFIG_AT803X_PHY) += at803x.o
obj-$(CONFIG_QCA83XX_PHY) += qca83xx.o
obj-$(CONFIG_QCA808X_PHY) += qca808x.o
+obj-$(CONFIG_QCA807X_PHY) += qca807x.o
--- /dev/null
+++ b/drivers/net/phy/qcom/qca807x.c
@@ -0,0 +1,597 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2023 Sartura Ltd.
+ *
+ * Author: Robert Marko <robert.marko@sartura.hr>
+ * Christian Marangi <ansuelsmth@gmail.com>
+ *
+ * Qualcomm QCA8072 and QCA8075 PHY driver
+ */
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/phy.h>
+#include <linux/bitfield.h>
+#include <linux/gpio/driver.h>
+#include <linux/sfp.h>
+
+#include "qcom.h"
+
+#define QCA807X_CHIP_CONFIGURATION 0x1f
+#define QCA807X_BT_BX_REG_SEL BIT(15)
+#define QCA807X_BT_BX_REG_SEL_FIBER 0
+#define QCA807X_BT_BX_REG_SEL_COPPER 1
+#define QCA807X_CHIP_CONFIGURATION_MODE_CFG_MASK GENMASK(3, 0)
+#define QCA807X_CHIP_CONFIGURATION_MODE_QSGMII_SGMII 4
+#define QCA807X_CHIP_CONFIGURATION_MODE_PSGMII_FIBER 3
+#define QCA807X_CHIP_CONFIGURATION_MODE_PSGMII_ALL_COPPER 0
+
+#define QCA807X_MEDIA_SELECT_STATUS 0x1a
+#define QCA807X_MEDIA_DETECTED_COPPER BIT(5)
+#define QCA807X_MEDIA_DETECTED_1000_BASE_X BIT(4)
+#define QCA807X_MEDIA_DETECTED_100_BASE_FX BIT(3)
+
+#define QCA807X_MMD7_FIBER_MODE_AUTO_DETECTION 0x807e
+#define QCA807X_MMD7_FIBER_MODE_AUTO_DETECTION_EN BIT(0)
+
+#define QCA807X_MMD7_1000BASE_T_POWER_SAVE_PER_CABLE_LENGTH 0x801a
+#define QCA807X_CONTROL_DAC_MASK GENMASK(2, 0)
+/* List of tweaks enabled by this bit:
+ * - With both FULL amplitude and FULL bias current: bias current
+ * is set to half.
+ * - With only DSP amplitude: bias current is set to half and
+ * is set to 1/4 with cable < 10m.
+ * - With DSP bias current (included both DSP amplitude and
+ * DSP bias current): bias current is half the detected current
+ * with cable < 10m.
+ */
+#define QCA807X_CONTROL_DAC_BIAS_CURRENT_TWEAK BIT(2)
+#define QCA807X_CONTROL_DAC_DSP_BIAS_CURRENT BIT(1)
+#define QCA807X_CONTROL_DAC_DSP_AMPLITUDE BIT(0)
+
+#define QCA807X_MMD7_LED_100N_1 0x8074
+#define QCA807X_MMD7_LED_100N_2 0x8075
+#define QCA807X_MMD7_LED_1000N_1 0x8076
+#define QCA807X_MMD7_LED_1000N_2 0x8077
+
+#define QCA807X_MMD7_LED_CTRL(x) (0x8074 + ((x) * 2))
+#define QCA807X_MMD7_LED_FORCE_CTRL(x) (0x8075 + ((x) * 2))
+
+#define QCA807X_GPIO_FORCE_EN BIT(15)
+#define QCA807X_GPIO_FORCE_MODE_MASK GENMASK(14, 13)
+
+#define QCA807X_FUNCTION_CONTROL 0x10
+#define QCA807X_FC_MDI_CROSSOVER_MODE_MASK GENMASK(6, 5)
+#define QCA807X_FC_MDI_CROSSOVER_AUTO 3
+#define QCA807X_FC_MDI_CROSSOVER_MANUAL_MDIX 1
+#define QCA807X_FC_MDI_CROSSOVER_MANUAL_MDI 0
+
+/* PQSGMII Analog PHY specific */
+#define PQSGMII_CTRL_REG 0x0
+#define PQSGMII_ANALOG_SW_RESET BIT(6)
+#define PQSGMII_DRIVE_CONTROL_1 0xb
+#define PQSGMII_TX_DRIVER_MASK GENMASK(7, 4)
+#define PQSGMII_TX_DRIVER_140MV 0x0
+#define PQSGMII_TX_DRIVER_160MV 0x1
+#define PQSGMII_TX_DRIVER_180MV 0x2
+#define PQSGMII_TX_DRIVER_200MV 0x3
+#define PQSGMII_TX_DRIVER_220MV 0x4
+#define PQSGMII_TX_DRIVER_240MV 0x5
+#define PQSGMII_TX_DRIVER_260MV 0x6
+#define PQSGMII_TX_DRIVER_280MV 0x7
+#define PQSGMII_TX_DRIVER_300MV 0x8
+#define PQSGMII_TX_DRIVER_320MV 0x9
+#define PQSGMII_TX_DRIVER_400MV 0xa
+#define PQSGMII_TX_DRIVER_500MV 0xb
+#define PQSGMII_TX_DRIVER_600MV 0xc
+#define PQSGMII_MODE_CTRL 0x6d
+#define PQSGMII_MODE_CTRL_AZ_WORKAROUND_MASK BIT(0)
+#define PQSGMII_MMD3_SERDES_CONTROL 0x805a
+
+#define PHY_ID_QCA8072 0x004dd0b2
+#define PHY_ID_QCA8075 0x004dd0b1
+
+#define QCA807X_COMBO_ADDR_OFFSET 4
+#define QCA807X_PQSGMII_ADDR_OFFSET 5
+#define SERDES_RESET_SLEEP 100
+
+enum qca807x_global_phy {
+ QCA807X_COMBO_ADDR = 4,
+ QCA807X_PQSGMII_ADDR = 5,
+};
+
+struct qca807x_shared_priv {
+ unsigned int package_mode;
+ u32 tx_drive_strength;
+};
+
+struct qca807x_gpio_priv {
+ struct phy_device *phy;
+};
+
+struct qca807x_priv {
+ bool dac_full_amplitude;
+ bool dac_full_bias_current;
+ bool dac_disable_bias_current_tweak;
+};
+
+static int qca807x_cable_test_start(struct phy_device *phydev)
+{
+ /* we do all the (time consuming) work later */
+ return 0;
+}
+
+#ifdef CONFIG_GPIOLIB
+static int qca807x_gpio_get_direction(struct gpio_chip *gc, unsigned int offset)
+{
+ return GPIO_LINE_DIRECTION_OUT;
+}
+
+static int qca807x_gpio_get(struct gpio_chip *gc, unsigned int offset)
+{
+ struct qca807x_gpio_priv *priv = gpiochip_get_data(gc);
+ u16 reg;
+ int val;
+
+ reg = QCA807X_MMD7_LED_FORCE_CTRL(offset);
+ val = phy_read_mmd(priv->phy, MDIO_MMD_AN, reg);
+
+ return FIELD_GET(QCA807X_GPIO_FORCE_MODE_MASK, val);
+}
+
+static void qca807x_gpio_set(struct gpio_chip *gc, unsigned int offset, int value)
+{
+ struct qca807x_gpio_priv *priv = gpiochip_get_data(gc);
+ u16 reg;
+ int val;
+
+ reg = QCA807X_MMD7_LED_FORCE_CTRL(offset);
+
+ val = phy_read_mmd(priv->phy, MDIO_MMD_AN, reg);
+ val &= ~QCA807X_GPIO_FORCE_MODE_MASK;
+ val |= QCA807X_GPIO_FORCE_EN;
+ val |= FIELD_PREP(QCA807X_GPIO_FORCE_MODE_MASK, value);
+
+ phy_write_mmd(priv->phy, MDIO_MMD_AN, reg, val);
+}
+
+static int qca807x_gpio_dir_out(struct gpio_chip *gc, unsigned int offset, int value)
+{
+ qca807x_gpio_set(gc, offset, value);
+
+ return 0;
+}
+
+static int qca807x_gpio(struct phy_device *phydev)
+{
+ struct device *dev = &phydev->mdio.dev;
+ struct qca807x_gpio_priv *priv;
+ struct gpio_chip *gc;
+
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ priv->phy = phydev;
+
+ gc = devm_kzalloc(dev, sizeof(*gc), GFP_KERNEL);
+ if (!gc)
+ return -ENOMEM;
+
+ gc->label = dev_name(dev);
+ gc->base = -1;
+ gc->ngpio = 2;
+ gc->parent = dev;
+ gc->owner = THIS_MODULE;
+ gc->can_sleep = true;
+ gc->get_direction = qca807x_gpio_get_direction;
+ gc->direction_output = qca807x_gpio_dir_out;
+ gc->get = qca807x_gpio_get;
+ gc->set = qca807x_gpio_set;
+
+ return devm_gpiochip_add_data(dev, gc, priv);
+}
+#endif
+
+static int qca807x_read_fiber_status(struct phy_device *phydev)
+{
+ bool changed;
+ int ss, err;
+
+ err = genphy_c37_read_status(phydev, &changed);
+ if (err || !changed)
+ return err;
+
+ /* Read the QCA807x PHY-Specific Status register fiber page,
+ * which indicates the speed and duplex that the PHY is actually
+ * using, irrespective of whether we are in autoneg mode or not.
+ */
+ ss = phy_read(phydev, AT803X_SPECIFIC_STATUS);
+ if (ss < 0)
+ return ss;
+
+ phydev->speed = SPEED_UNKNOWN;
+ phydev->duplex = DUPLEX_UNKNOWN;
+ if (ss & AT803X_SS_SPEED_DUPLEX_RESOLVED) {
+ switch (FIELD_GET(AT803X_SS_SPEED_MASK, ss)) {
+ case AT803X_SS_SPEED_100:
+ phydev->speed = SPEED_100;
+ break;
+ case AT803X_SS_SPEED_1000:
+ phydev->speed = SPEED_1000;
+ break;
+ }
+
+ if (ss & AT803X_SS_DUPLEX)
+ phydev->duplex = DUPLEX_FULL;
+ else
+ phydev->duplex = DUPLEX_HALF;
+ }
+
+ return 0;
+}
+
+static int qca807x_read_status(struct phy_device *phydev)
+{
+ if (linkmode_test_bit(ETHTOOL_LINK_MODE_FIBRE_BIT, phydev->supported)) {
+ switch (phydev->port) {
+ case PORT_FIBRE:
+ return qca807x_read_fiber_status(phydev);
+ case PORT_TP:
+ return at803x_read_status(phydev);
+ default:
+ return -EINVAL;
+ }
+ }
+
+ return at803x_read_status(phydev);
+}
+
+static int qca807x_phy_package_probe_once(struct phy_device *phydev)
+{
+ struct phy_package_shared *shared = phydev->shared;
+ struct qca807x_shared_priv *priv = shared->priv;
+ unsigned int tx_drive_strength;
+ const char *package_mode_name;
+
+ /* Default to 600mw if not defined */
+ if (of_property_read_u32(shared->np, "qcom,tx-drive-strength-milliwatt",
+ &tx_drive_strength))
+ tx_drive_strength = 600;
+
+ switch (tx_drive_strength) {
+ case 140:
+ priv->tx_drive_strength = PQSGMII_TX_DRIVER_140MV;
+ break;
+ case 160:
+ priv->tx_drive_strength = PQSGMII_TX_DRIVER_160MV;
+ break;
+ case 180:
+ priv->tx_drive_strength = PQSGMII_TX_DRIVER_180MV;
+ break;
+ case 200:
+ priv->tx_drive_strength = PQSGMII_TX_DRIVER_200MV;
+ break;
+ case 220:
+ priv->tx_drive_strength = PQSGMII_TX_DRIVER_220MV;
+ break;
+ case 240:
+ priv->tx_drive_strength = PQSGMII_TX_DRIVER_240MV;
+ break;
+ case 260:
+ priv->tx_drive_strength = PQSGMII_TX_DRIVER_260MV;
+ break;
+ case 280:
+ priv->tx_drive_strength = PQSGMII_TX_DRIVER_280MV;
+ break;
+ case 300:
+ priv->tx_drive_strength = PQSGMII_TX_DRIVER_300MV;
+ break;
+ case 320:
+ priv->tx_drive_strength = PQSGMII_TX_DRIVER_320MV;
+ break;
+ case 400:
+ priv->tx_drive_strength = PQSGMII_TX_DRIVER_400MV;
+ break;
+ case 500:
+ priv->tx_drive_strength = PQSGMII_TX_DRIVER_500MV;
+ break;
+ case 600:
+ priv->tx_drive_strength = PQSGMII_TX_DRIVER_600MV;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ priv->package_mode = PHY_INTERFACE_MODE_NA;
+ if (!of_property_read_string(shared->np, "qcom,package-mode",
+ &package_mode_name)) {
+ if (!strcasecmp(package_mode_name,
+ phy_modes(PHY_INTERFACE_MODE_PSGMII)))
+ priv->package_mode = PHY_INTERFACE_MODE_PSGMII;
+ else if (!strcasecmp(package_mode_name,
+ phy_modes(PHY_INTERFACE_MODE_QSGMII)))
+ priv->package_mode = PHY_INTERFACE_MODE_QSGMII;
+ else
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int qca807x_phy_package_config_init_once(struct phy_device *phydev)
+{
+ struct phy_package_shared *shared = phydev->shared;
+ struct qca807x_shared_priv *priv = shared->priv;
+ int val, ret;
+
+ phy_lock_mdio_bus(phydev);
+
+ /* Set correct PHY package mode */
+ val = __phy_package_read(phydev, QCA807X_COMBO_ADDR,
+ QCA807X_CHIP_CONFIGURATION);
+ val &= ~QCA807X_CHIP_CONFIGURATION_MODE_CFG_MASK;
+ /* package_mode can be QSGMII or PSGMII and we validate
+ * this in probe_once.
+ * With package_mode to NA, we default to PSGMII.
+ */
+ switch (priv->package_mode) {
+ case PHY_INTERFACE_MODE_QSGMII:
+ val |= QCA807X_CHIP_CONFIGURATION_MODE_QSGMII_SGMII;
+ break;
+ case PHY_INTERFACE_MODE_PSGMII:
+ default:
+ val |= QCA807X_CHIP_CONFIGURATION_MODE_PSGMII_ALL_COPPER;
+ }
+ ret = __phy_package_write(phydev, QCA807X_COMBO_ADDR,
+ QCA807X_CHIP_CONFIGURATION, val);
+ if (ret)
+ goto exit;
+
+ /* After mode change Serdes reset is required */
+ val = __phy_package_read(phydev, QCA807X_PQSGMII_ADDR,
+ PQSGMII_CTRL_REG);
+ val &= ~PQSGMII_ANALOG_SW_RESET;
+ ret = __phy_package_write(phydev, QCA807X_PQSGMII_ADDR,
+ PQSGMII_CTRL_REG, val);
+ if (ret)
+ goto exit;
+
+ msleep(SERDES_RESET_SLEEP);
+
+ val = __phy_package_read(phydev, QCA807X_PQSGMII_ADDR,
+ PQSGMII_CTRL_REG);
+ val |= PQSGMII_ANALOG_SW_RESET;
+ ret = __phy_package_write(phydev, QCA807X_PQSGMII_ADDR,
+ PQSGMII_CTRL_REG, val);
+ if (ret)
+ goto exit;
+
+ /* Workaround to enable AZ transmitting ability */
+ val = __phy_package_read_mmd(phydev, QCA807X_PQSGMII_ADDR,
+ MDIO_MMD_PMAPMD, PQSGMII_MODE_CTRL);
+ val &= ~PQSGMII_MODE_CTRL_AZ_WORKAROUND_MASK;
+ ret = __phy_package_write_mmd(phydev, QCA807X_PQSGMII_ADDR,
+ MDIO_MMD_PMAPMD, PQSGMII_MODE_CTRL, val);
+ if (ret)
+ goto exit;
+
+ /* Set PQSGMII TX AMP strength */
+ val = __phy_package_read(phydev, QCA807X_PQSGMII_ADDR,
+ PQSGMII_DRIVE_CONTROL_1);
+ val &= ~PQSGMII_TX_DRIVER_MASK;
+ val |= FIELD_PREP(PQSGMII_TX_DRIVER_MASK, priv->tx_drive_strength);
+ ret = __phy_package_write(phydev, QCA807X_PQSGMII_ADDR,
+ PQSGMII_DRIVE_CONTROL_1, val);
+ if (ret)
+ goto exit;
+
+ /* Prevent PSGMII going into hibernation via PSGMII self test */
+ val = __phy_package_read_mmd(phydev, QCA807X_COMBO_ADDR,
+ MDIO_MMD_PCS, PQSGMII_MMD3_SERDES_CONTROL);
+ val &= ~BIT(1);
+ ret = __phy_package_write_mmd(phydev, QCA807X_COMBO_ADDR,
+ MDIO_MMD_PCS, PQSGMII_MMD3_SERDES_CONTROL, val);
+
+exit:
+ phy_unlock_mdio_bus(phydev);
+
+ return ret;
+}
+
+static int qca807x_sfp_insert(void *upstream, const struct sfp_eeprom_id *id)
+{
+ struct phy_device *phydev = upstream;
+ __ETHTOOL_DECLARE_LINK_MODE_MASK(support) = { 0, };
+ phy_interface_t iface;
+ int ret;
+ DECLARE_PHY_INTERFACE_MASK(interfaces);
+
+ sfp_parse_support(phydev->sfp_bus, id, support, interfaces);
+ iface = sfp_select_interface(phydev->sfp_bus, support);
+
+ dev_info(&phydev->mdio.dev, "%s SFP module inserted\n", phy_modes(iface));
+
+ switch (iface) {
+ case PHY_INTERFACE_MODE_1000BASEX:
+ case PHY_INTERFACE_MODE_100BASEX:
+ /* Set PHY mode to PSGMII combo (1/4 copper + combo ports) mode */
+ ret = phy_modify(phydev,
+ QCA807X_CHIP_CONFIGURATION,
+ QCA807X_CHIP_CONFIGURATION_MODE_CFG_MASK,
+ QCA807X_CHIP_CONFIGURATION_MODE_PSGMII_FIBER);
+ /* Enable fiber mode autodection (1000Base-X or 100Base-FX) */
+ ret = phy_set_bits_mmd(phydev,
+ MDIO_MMD_AN,
+ QCA807X_MMD7_FIBER_MODE_AUTO_DETECTION,
+ QCA807X_MMD7_FIBER_MODE_AUTO_DETECTION_EN);
+ /* Select fiber page */
+ ret = phy_clear_bits(phydev,
+ QCA807X_CHIP_CONFIGURATION,
+ QCA807X_BT_BX_REG_SEL);
+
+ phydev->port = PORT_FIBRE;
+ break;
+ default:
+ dev_err(&phydev->mdio.dev, "Incompatible SFP module inserted\n");
+ return -EINVAL;
+ }
+
+ return ret;
+}
+
+static void qca807x_sfp_remove(void *upstream)
+{
+ struct phy_device *phydev = upstream;
+
+ /* Select copper page */
+ phy_set_bits(phydev,
+ QCA807X_CHIP_CONFIGURATION,
+ QCA807X_BT_BX_REG_SEL);
+
+ phydev->port = PORT_TP;
+}
+
+static const struct sfp_upstream_ops qca807x_sfp_ops = {
+ .attach = phy_sfp_attach,
+ .detach = phy_sfp_detach,
+ .module_insert = qca807x_sfp_insert,
+ .module_remove = qca807x_sfp_remove,
+};
+
+static int qca807x_probe(struct phy_device *phydev)
+{
+ struct device_node *node = phydev->mdio.dev.of_node;
+ struct qca807x_shared_priv *shared_priv;
+ struct device *dev = &phydev->mdio.dev;
+ struct phy_package_shared *shared;
+ struct qca807x_priv *priv;
+ int ret;
+
+ ret = devm_of_phy_package_join(dev, phydev, sizeof(*shared_priv));
+ if (ret)
+ return ret;
+
+ if (phy_package_probe_once(phydev)) {
+ ret = qca807x_phy_package_probe_once(phydev);
+ if (ret)
+ return ret;
+ }
+
+ shared = phydev->shared;
+ shared_priv = shared->priv;
+
+ /* Make sure PHY follow PHY package mode if enforced */
+ if (shared_priv->package_mode != PHY_INTERFACE_MODE_NA &&
+ phydev->interface != shared_priv->package_mode)
+ return -EINVAL;
+
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ priv->dac_full_amplitude = of_property_read_bool(node, "qcom,dac-full-amplitude");
+ priv->dac_full_bias_current = of_property_read_bool(node, "qcom,dac-full-bias-current");
+ priv->dac_disable_bias_current_tweak = of_property_read_bool(node,
+ "qcom,dac-disable-bias-current-tweak");
+
+ if (IS_ENABLED(CONFIG_GPIOLIB)) {
+ /* Do not register a GPIO controller unless flagged for it */
+ if (of_property_read_bool(node, "gpio-controller")) {
+ ret = qca807x_gpio(phydev);
+ if (ret)
+ return ret;
+ }
+ }
+
+ /* Attach SFP bus on combo port*/
+ if (phy_read(phydev, QCA807X_CHIP_CONFIGURATION)) {
+ ret = phy_sfp_probe(phydev, &qca807x_sfp_ops);
+ if (ret)
+ return ret;
+ linkmode_set_bit(ETHTOOL_LINK_MODE_FIBRE_BIT, phydev->supported);
+ linkmode_set_bit(ETHTOOL_LINK_MODE_FIBRE_BIT, phydev->advertising);
+ }
+
+ phydev->priv = priv;
+
+ return 0;
+}
+
+static int qca807x_config_init(struct phy_device *phydev)
+{
+ struct qca807x_priv *priv = phydev->priv;
+ u16 control_dac;
+ int ret;
+
+ if (phy_package_init_once(phydev)) {
+ ret = qca807x_phy_package_config_init_once(phydev);
+ if (ret)
+ return ret;
+ }
+
+ control_dac = phy_read_mmd(phydev, MDIO_MMD_AN,
+ QCA807X_MMD7_1000BASE_T_POWER_SAVE_PER_CABLE_LENGTH);
+ control_dac &= ~QCA807X_CONTROL_DAC_MASK;
+ if (!priv->dac_full_amplitude)
+ control_dac |= QCA807X_CONTROL_DAC_DSP_AMPLITUDE;
+ if (!priv->dac_full_amplitude)
+ control_dac |= QCA807X_CONTROL_DAC_DSP_BIAS_CURRENT;
+ if (!priv->dac_disable_bias_current_tweak)
+ control_dac |= QCA807X_CONTROL_DAC_BIAS_CURRENT_TWEAK;
+ return phy_write_mmd(phydev, MDIO_MMD_AN,
+ QCA807X_MMD7_1000BASE_T_POWER_SAVE_PER_CABLE_LENGTH,
+ control_dac);
+}
+
+static struct phy_driver qca807x_drivers[] = {
+ {
+ PHY_ID_MATCH_EXACT(PHY_ID_QCA8072),
+ .name = "Qualcomm QCA8072",
+ .flags = PHY_POLL_CABLE_TEST,
+ /* PHY_GBIT_FEATURES */
+ .probe = qca807x_probe,
+ .config_init = qca807x_config_init,
+ .read_status = qca807x_read_status,
+ .config_intr = at803x_config_intr,
+ .handle_interrupt = at803x_handle_interrupt,
+ .soft_reset = genphy_soft_reset,
+ .get_tunable = at803x_get_tunable,
+ .set_tunable = at803x_set_tunable,
+ .resume = genphy_resume,
+ .suspend = genphy_suspend,
+ .cable_test_start = qca807x_cable_test_start,
+ .cable_test_get_status = qca808x_cable_test_get_status,
+ },
+ {
+ PHY_ID_MATCH_EXACT(PHY_ID_QCA8075),
+ .name = "Qualcomm QCA8075",
+ .flags = PHY_POLL_CABLE_TEST,
+ /* PHY_GBIT_FEATURES */
+ .probe = qca807x_probe,
+ .config_init = qca807x_config_init,
+ .read_status = qca807x_read_status,
+ .config_intr = at803x_config_intr,
+ .handle_interrupt = at803x_handle_interrupt,
+ .soft_reset = genphy_soft_reset,
+ .get_tunable = at803x_get_tunable,
+ .set_tunable = at803x_set_tunable,
+ .resume = genphy_resume,
+ .suspend = genphy_suspend,
+ .cable_test_start = qca807x_cable_test_start,
+ .cable_test_get_status = qca808x_cable_test_get_status,
+ },
+};
+module_phy_driver(qca807x_drivers);
+
+static struct mdio_device_id __maybe_unused qca807x_tbl[] = {
+ { PHY_ID_MATCH_EXACT(PHY_ID_QCA8072) },
+ { PHY_ID_MATCH_EXACT(PHY_ID_QCA8075) },
+ { }
+};
+
+MODULE_AUTHOR("Robert Marko <robert.marko@sartura.hr>");
+MODULE_AUTHOR("Christian Marangi <ansuelsmth@gmail.com>");
+MODULE_DESCRIPTION("Qualcomm QCA807x PHY driver");
+MODULE_DEVICE_TABLE(mdio, qca807x_tbl);
+MODULE_LICENSE("GPL");
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