arm64: dts: ti: k3-am642-hummingboard-t: Convert overlay to board dts

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@linux-m68k.org>
Closes: https://lore.kernel.org/linux-devicetree/CAMuHMdXTgpTnJ9U7egC2XjFXXNZ5uiY1O+WxNd6LPJW5Rs5KTw@mail.gmail.com
Fixes: bbef42084cc1 ("arm64: dts: ti: hummingboard-t: add overlays for m.2 pci-e and usb-3")
Signed-off-by: Josua Mayer <josua@solid-run.com>
Link: https://lore.kernel.org/r/20250101-am64-hb-fix-overlay-v2-1-78143f5da28c@solid-run.com
Signed-off-by: Nishanth Menon <nm@ti.com>

diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index db5ae27467e706c446156c21c054e8e04684b2fb..8a4bdf87e2d41aeecb1c064de3e962bf68b71c8a 100644 (file)
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -42,10 +42,6 @@ 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 bd9a5caf20da5b7f11266575f69f0f5dcc1a47ae..023b2a6aaa56689f712a6c1ede6ba427d746fe34 100644 (file)
--- 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@solid-run.com>
  *
- * 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 ffcc3bd3c7bc5d47ce9926a95a13af3f61182a2b..ee9bd618f3701047be4ac7502cb70e7d3589ff5d 100644 (file)
--- 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@solid-run.com>
  *
- * 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>;