This is a note to let you know that I've just added the patch titled
arm64: dts: ti: k3-am642-hummingboard-t: Convert overlay to board dts
to the 6.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
arm64-dts-ti-k3-am642-hummingboard-t-convert-overlay.patch
and it can be found in the queue-6.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 083e85bb20127c674ecd9992f8276fb32e7ab3e4
Author: Josua Mayer <josua@xxxxxxxxxxxxx>
Date: Wed Jan 1 13:30:22 2025 +0100
arm64: dts: ti: k3-am642-hummingboard-t: Convert overlay to board dts
[ Upstream commit e2b69180431968250bf3c0c581155f1b37d057c1 ]
SolidRun HummingBoard-T has two options for M.2 connector, supporting
either PCI-E or USB-3.1 Gen 1 - depending on configuration of a mux
on the serdes lane.
The required configurations in device-tree were modeled as overlays.
The USB-3.1 overlay uses /delete-property/ to unset a boolean property
on the usb controller limiting it to USB-2.0 by default.
Overlays can not delete a property from the base dtb, therefore this
overlay is at this time useless.
Convert both overlays into full dts by including the base board dts.
While the pcie overlay was functional, both are converted for a
consistent user experience when selecting between the two mutually
exclusive configurations.
Reported-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Closes: https://lore.kernel.org/linux-devicetree/CAMuHMdXTgpTnJ9U7egC2XjFXXNZ5uiY1O+WxNd6LPJW5Rs5KTw@xxxxxxxxxxxxxx
Fixes: bbef42084cc1 ("arm64: dts: ti: hummingboard-t: add overlays for m.2 pci-e and usb-3")
Signed-off-by: Josua Mayer <josua@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20250101-am64-hb-fix-overlay-v2-1-78143f5da28c@xxxxxxxxxxxxx
Signed-off-by: Nishanth Menon <nm@xxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index bcd392c3206e5..562e6d57bc991 100644
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -41,10 +41,6 @@ dtb-$(CONFIG_ARCH_K3) += k3-am62x-sk-csi2-imx219.dtbo
dtb-$(CONFIG_ARCH_K3) += k3-am62x-sk-hdmi-audio.dtbo
# Boards with AM64x SoC
-k3-am642-hummingboard-t-pcie-dtbs := \
- k3-am642-hummingboard-t.dtb k3-am642-hummingboard-t-pcie.dtbo
-k3-am642-hummingboard-t-usb3-dtbs := \
- k3-am642-hummingboard-t.dtb k3-am642-hummingboard-t-usb3.dtbo
dtb-$(CONFIG_ARCH_K3) += k3-am642-evm.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am642-evm-icssg1-dualemac.dtbo
dtb-$(CONFIG_ARCH_K3) += k3-am642-evm-icssg1-dualemac-mii.dtbo
diff --git a/arch/arm64/boot/dts/ti/k3-am642-hummingboard-t-pcie.dtso b/arch/arm64/boot/dts/ti/k3-am642-hummingboard-t-pcie.dts
similarity index 78%
rename from arch/arm64/boot/dts/ti/k3-am642-hummingboard-t-pcie.dtso
rename to arch/arm64/boot/dts/ti/k3-am642-hummingboard-t-pcie.dts
index bd9a5caf20da5..023b2a6aaa566 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-hummingboard-t-pcie.dtso
+++ b/arch/arm64/boot/dts/ti/k3-am642-hummingboard-t-pcie.dts
@@ -2,17 +2,19 @@
/*
* Copyright (C) 2023 Josua Mayer <josua@xxxxxxxxxxxxx>
*
- * Overlay for SolidRun AM642 HummingBoard-T to enable PCI-E.
+ * DTS for SolidRun AM642 HummingBoard-T,
+ * running on Cortex A53, with PCI-E.
+ *
*/
-/dts-v1/;
-/plugin/;
-
-#include <dt-bindings/gpio/gpio.h>
-#include <dt-bindings/phy/phy.h>
+#include "k3-am642-hummingboard-t.dts"
#include "k3-serdes.h"
+/ {
+ model = "SolidRun AM642 HummingBoard-T with PCI-E";
+};
+
&pcie0_rc {
pinctrl-names = "default";
pinctrl-0 = <&pcie0_default_pins>;
diff --git a/arch/arm64/boot/dts/ti/k3-am642-hummingboard-t-usb3.dtso b/arch/arm64/boot/dts/ti/k3-am642-hummingboard-t-usb3.dts
similarity index 74%
rename from arch/arm64/boot/dts/ti/k3-am642-hummingboard-t-usb3.dtso
rename to arch/arm64/boot/dts/ti/k3-am642-hummingboard-t-usb3.dts
index ffcc3bd3c7bc5..ee9bd618f3701 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-hummingboard-t-usb3.dtso
+++ b/arch/arm64/boot/dts/ti/k3-am642-hummingboard-t-usb3.dts
@@ -2,16 +2,19 @@
/*
* Copyright (C) 2023 Josua Mayer <josua@xxxxxxxxxxxxx>
*
- * Overlay for SolidRun AM642 HummingBoard-T to enable USB-3.1.
+ * DTS for SolidRun AM642 HummingBoard-T,
+ * running on Cortex A53, with USB-3.1 Gen 1.
+ *
*/
-/dts-v1/;
-/plugin/;
-
-#include <dt-bindings/phy/phy.h>
+#include "k3-am642-hummingboard-t.dts"
#include "k3-serdes.h"
+/ {
+ model = "SolidRun AM642 HummingBoard-T with USB-3.1 Gen 1";
+};
+
&serdes0 {
#address-cells = <1>;
#size-cells = <0>;
