From b1f21329d4358e74864f17eedd0f887e5ad2a816 Mon Sep 17 00:00:00 2001 From: Robert Marko Date: Mon, 27 Dec 2021 15:11:18 +0100 Subject: ipq40xx: add DSA switch driver Qualcomm IPQ40xx SoC-s have a variant of QCA8337N switch built-in. It shares most of the stuff with its external counterpart, however it is modified for the SoC. Namely, it doesn't have second CPU port (Port 6), so it has 6 ports instead of 7. It also has no built-in PHY-s but rather requires external PSGMII based companion PHY-s (QCA8072 and QCA8075) for which it first needs to carry out calibration before using them. PSGMII has a SoC built-in PHY that is used to connect to the PHY-s which unfortunately requires some magic values as the datasheet doesnt document the bits that are being set or the register at all. Since its built-in it is MMIO like other peripherals and doesn't have its own MDIO bus but depends on the SoC provided one. CPU connection is at Port 0 and it uses some kind of a internal connection and no traditional RGMII/SGMII. It also doesn't use in-band tagging like other qca8k switches so a shinfo based tagger is used. This is based on the current OpenWrt qca8k version that has been imported from generic target. Signed-off-by: Robert Marko --- .../707-dt-bindings-net-add-QCA807x-PHY.patch | 61 ++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 target/linux/ipq40xx/patches-5.15/707-dt-bindings-net-add-QCA807x-PHY.patch (limited to 'target/linux/ipq40xx/patches-5.15/707-dt-bindings-net-add-QCA807x-PHY.patch') diff --git a/target/linux/ipq40xx/patches-5.15/707-dt-bindings-net-add-QCA807x-PHY.patch b/target/linux/ipq40xx/patches-5.15/707-dt-bindings-net-add-QCA807x-PHY.patch new file mode 100644 index 0000000000..dfb8d692ab --- /dev/null +++ b/target/linux/ipq40xx/patches-5.15/707-dt-bindings-net-add-QCA807x-PHY.patch @@ -0,0 +1,61 @@ +From c66863c1ba8995b61e6d727d78a241c734f5bb57 Mon Sep 17 00:00:00 2001 +From: Robert Marko +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 +--- + 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 -- cgit v1.2.3