ipq40xx: add Qualcomm QCA807x driver

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.

Each PHY inside of QCA807x series has 2 digitally controlled output only
pins that natively drive LED-s.
But some vendors used these to driver generic LED-s controlled by
user space, so lets enable registering each PHY as GPIO controller and
add driver for it.

This also adds the ability to specify DT properties so that 1000 Base-T
LED will also be lit up for 100 and 10 Base connections.

This is usually done by U-boot, but boards running mainline U-boot are
not configuring this yet.

These PHY-s are commonly used in Qualcomm IPQ40xx, IPQ60xx and IPQ807x
boards.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>

2 files changed, 111 insertions, 0 deletions

diff --git a/target/linux/ipq40xx/patches-5.4/706-dt-bindings-net-add-QCA807x-PHY.patch b/target/linux/ipq40xx/patches-5.4/706-dt-bindings-net-add-QCA807x-PHY.patch
new file mode 100644
index 0000000000..dfb8d692ab
--- /dev/null
+++ b/target/linux/ipq40xx/patches-5.4/706-dt-bindings-net-add-QCA807x-PHY.patch
@@ -0,0 +1,61 @@
+From c66863c1ba8995b61e6d727d78a241c734f5bb57 Mon Sep 17 00:00:00 2001
+From: Robert Marko <robert.marko@sartura.hr>
+Date: Thu, 1 Oct 2020 15:05:35 +0200
+Subject: [PATCH] dt-bindings: net: add QCA807x PHY
+
+Add DT bindings for Qualcomm QCA807x PHY series.
+
+Signed-off-by: Robert Marko <robert.marko@sartura.hr>
+---
+ include/dt-bindings/net/qcom-qca807x.h | 45 ++++++++++++++++++++++++++
+ 1 file changed, 45 insertions(+)
+ create mode 100644 include/dt-bindings/net/qcom-qca807x.h
+
+--- /dev/null
++++ b/include/dt-bindings/net/qcom-qca807x.h
+@@ -0,0 +1,45 @@
++/* SPDX-License-Identifier: GPL-2.0-or-later */
++/*
++ * Device Tree constants for the Qualcomm QCA807X PHYs
++ */
++
++#ifndef _DT_BINDINGS_QCOM_QCA807X_H
++#define _DT_BINDINGS_QCOM_QCA807X_H
++
++#define PSGMII_QSGMII_TX_DRIVER_140MV	0
++#define PSGMII_QSGMII_TX_DRIVER_160MV	1
++#define PSGMII_QSGMII_TX_DRIVER_180MV	2
++#define PSGMII_QSGMII_TX_DRIVER_200MV	3
++#define PSGMII_QSGMII_TX_DRIVER_220MV	4
++#define PSGMII_QSGMII_TX_DRIVER_240MV	5
++#define PSGMII_QSGMII_TX_DRIVER_260MV	6
++#define PSGMII_QSGMII_TX_DRIVER_280MV	7
++#define PSGMII_QSGMII_TX_DRIVER_300MV	8
++#define PSGMII_QSGMII_TX_DRIVER_320MV	9
++#define PSGMII_QSGMII_TX_DRIVER_400MV	10
++#define PSGMII_QSGMII_TX_DRIVER_500MV	11
++/* Default value */
++#define PSGMII_QSGMII_TX_DRIVER_600MV	12
++
++/* Full amplitude, full bias current */
++#define QCA807X_CONTROL_DAC_FULL_VOLT_BIAS		0
++/* Amplitude follow DSP (amplitude is adjusted based on cable length), half bias current */
++#define QCA807X_CONTROL_DAC_DSP_VOLT_HALF_BIAS		1
++/* Full amplitude, bias current follow DSP (bias current is adjusted based on cable length) */
++#define QCA807X_CONTROL_DAC_FULL_VOLT_DSP_BIAS		2
++/* Both amplitude and bias current follow DSP */
++#define QCA807X_CONTROL_DAC_DSP_VOLT_BIAS		3
++/* Full amplitude, half bias current */
++#define QCA807X_CONTROL_DAC_FULL_VOLT_HALF_BIAS		4
++/* Amplitude follow DSP setting; 1/4 bias current when cable<10m,
++ * otherwise half bias current
++ */
++#define QCA807X_CONTROL_DAC_DSP_VOLT_QUARTER_BIAS	5
++/* Full amplitude; same bias current setting with “010” and “011”,
++ * but half more bias is reduced when cable <10m
++ */
++#define QCA807X_CONTROL_DAC_FULL_VOLT_HALF_BIAS_SHORT	6
++/* Amplitude follow DSP; same bias current setting with “110”, default value */
++#define QCA807X_CONTROL_DAC_DSP_VOLT_HALF_BIAS_SHORT	7
++
++#endif
diff --git a/target/linux/ipq40xx/patches-5.4/707-net-phy-Add-Qualcom-QCA807x-driver.patch b/target/linux/ipq40xx/patches-5.4/707-net-phy-Add-Qualcom-QCA807x-driver.patch
new file mode 100644
index 0000000000..b71b28d941
--- /dev/null
+++ b/target/linux/ipq40xx/patches-5.4/707-net-phy-Add-Qualcom-QCA807x-driver.patch
@@ -0,0 +1,50 @@
+From f825cdc8bfde7616a14e2163f16303a8973031d2 Mon Sep 17 00:00:00 2001
+From: Robert Marko <robert.marko@sartura.hr>
+Date: Wed, 7 Oct 2020 17:38:48 +0200
+Subject: [PATCH] net: phy: Add Qualcom QCA807x driver
+
+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.
+
+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.
+
+Signed-off-by: Robert Marko <robert.marko@sartura.hr>
+---
+ drivers/net/phy/Kconfig  | 6 ++++++
+ drivers/net/phy/Makefile | 1 +
+ 2 files changed, 7 insertions(+)
+
+--- a/drivers/net/phy/Kconfig
++++ b/drivers/net/phy/Kconfig
+@@ -537,6 +537,12 @@ config NXP_TJA11XX_PHY
+ 	---help---
+ 	  Currently supports the NXP TJA1100 and TJA1101 PHY.
+ 
++config QCA807X_PHY
++	tristate "Qualcomm QCA807X PHYs"
++	depends on OF_MDIO
++	help
++	  Currently supports the QCA8072 and QCA8075 models.
++
+ config QSEMI_PHY
+ 	tristate "Quality Semiconductor PHYs"
+ 	---help---
+--- a/drivers/net/phy/Makefile
++++ b/drivers/net/phy/Makefile
+@@ -103,6 +103,7 @@ obj-$(CONFIG_MICROSEMI_PHY)	+= mscc.o
+ obj-$(CONFIG_NATIONAL_PHY)	+= national.o
+ obj-$(CONFIG_NXP_TJA11XX_PHY)	+= nxp-tja11xx.o
+ obj-$(CONFIG_QSEMI_PHY)		+= qsemi.o
++obj-$(CONFIG_QCA807X_PHY)		+= qca807x.o
+ obj-$(CONFIG_REALTEK_PHY)	+= realtek.o
+ obj-$(CONFIG_RENESAS_PHY)	+= uPD60620.o
+ obj-$(CONFIG_ROCKCHIP_PHY)	+= rockchip.o