mirror of
				git://git.openwrt.org/openwrt/openwrt.git
				synced 2025-10-31 14:04:26 -04:00 
			
		
		
		
	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>
		
			
				
	
	
		
			669 lines
		
	
	
		
			20 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
			
		
		
	
	
			669 lines
		
	
	
		
			20 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
| 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");
 |