From: Nathan Morrisson <nmorrisson@phytec.com>
Date: Thu, 13 Jun 2024 23:07:57 +0000 (-0700)
Subject: arm64: dts: ti: k3-am6xx-phycore-som: Add overlay to disable eth phy
X-Git-Tag: v6.11-rc1~188^2~11^2~45
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=1322b1796d7143dfa75e10e036c6099927ef510d;p=thirdparty%2Fkernel%2Flinux.git

arm64: dts: ti: k3-am6xx-phycore-som: Add overlay to disable eth phy

Add an overlay to disable the eth phy for all am6xx-phycore-som
boards.
The EEPROM on am6xx-phycore-soms contains information about the
configuration of the SOM. The standard configuration of the SOM
has an ethernet phy, but if no ethernet phy is populated, the EEPROM
will indicate that change and we can use this overlay to cleanly
disable the ethernet phy.

Signed-off-by: Nathan Morrisson <nmorrisson@phytec.com>
Link: https://lore.kernel.org/r/20240613230759.1984966-3-nmorrisson@phytec.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
---

diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index eb9de38a2890b..14c7377cb9b04 100644
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -57,6 +57,9 @@ dtb-$(CONFIG_ARCH_K3) += k3-am642-tqma64xxl-mbax4xxl.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am64-tqma64xxl-mbax4xxl-sdcard.dtbo
 dtb-$(CONFIG_ARCH_K3) += k3-am64-tqma64xxl-mbax4xxl-wlan.dtbo
 
+# Common overlays for the phyCORE-AM6* family of boards
+dtb-$(CONFIG_ARCH_K3) += k3-am6xx-phycore-disable-eth-phy.dtbo
+
 # Boards with AM65x SoC
 k3-am654-gp-evm-dtbs := k3-am654-base-board.dtb \
 	k3-am654-base-board-rocktech-rk101-panel.dtbo \
@@ -116,6 +119,8 @@ k3-am625-beagleplay-csi2-tevi-ov5640-dtbs := k3-am625-beagleplay.dtb \
 	k3-am625-beagleplay-csi2-tevi-ov5640.dtbo
 k3-am625-phyboard-lyra-1-4-ghz-opp.dtbs := k3-am625-phyboard-lyra-rdk.dtb \
 	k3-am625-phyboard-lyra-1-4-ghz-opp.dtbo
+k3-am625-phyboard-lyra-disable-eth-phy-dtbs := k3-am625-phyboard-lyra-rdk.dtb \
+	k3-am6xx-phycore-disable-eth-phy.dtbo
 k3-am625-phyboard-lyra-gpio-fan-dtbs := k3-am625-phyboard-lyra-rdk.dtb \
 	k3-am62x-phyboard-lyra-gpio-fan.dtbo
 k3-am625-sk-csi2-imx219-dtbs := k3-am625-sk.dtb \
@@ -143,6 +148,8 @@ k3-am642-evm-icssg1-dualemac-dtbs := \
 	k3-am642-evm.dtb k3-am642-evm-icssg1-dualemac.dtbo
 k3-am642-evm-icssg1-dualemac-mii-dtbs := \
 	k3-am642-evm.dtb k3-am642-evm-icssg1-dualemac-mii.dtbo
+k3-am642-phyboard-electra-disable-eth-phy-dtbs := \
+	k3-am642-phyboard-electra-rdk.dtb k3-am6xx-phycore-disable-eth-phy.dtbo
 k3-am642-phyboard-electra-gpio-fan-dtbs := \
 	k3-am642-phyboard-electra-rdk.dtb k3-am642-phyboard-electra-gpio-fan.dtbo
 k3-am642-phyboard-electra-pcie-usb2-dtbs := \
diff --git a/arch/arm64/boot/dts/ti/k3-am6xx-phycore-disable-eth-phy.dtso b/arch/arm64/boot/dts/ti/k3-am6xx-phycore-disable-eth-phy.dtso
new file mode 100644
index 0000000000000..356c82bbe1432
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am6xx-phycore-disable-eth-phy.dtso
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/*
+ * Copyright (C) 2023 PHYTEC America, LLC
+ * Author: Garrett Giordano <ggiordano@phytec.com>
+ *
+ * Copyright (C) 2024 PHYTEC America, LLC
+ * Author: Nathan Morrisson <nmorrisson@phytec.com>
+ */
+
+/dts-v1/;
+/plugin/;
+
+&cpsw3g_phy1 {
+	status = "disabled";
+};
+
+&cpsw_port1 {
+	status = "disabled";
+};