ARM: dts: imx6dl: Add support for i.MX6DL DHCOM SoM on PDK2 carrier board

Add support for the DH electronics i.MX6DL DHCOM SoM and a PDK2 evaluation
board. The evaluation board features three serial ports, USB OTG, USB host
with an USB hub, Fast or Gigabit ethernet, eMMC, uSD, SD, analog audio,
PCIe and HDMI video output.

All of the aforementioned features except for mSATA are supported, mSATA
is not available on i.MX6DL and is only available on DHCOM populated with
i.MX6Q SoC which is already supported upstream.

Backport from linux-next commit
c3f5d76a6e03 ("ARM: dts: imx6dl: Add support for i.MX6DL DHCOM SoM on PDK2 carrier board")

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Christoph Niedermaier <cniedermaier@dh-electronics.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/dts/upstream/src/arm/nxp/imx/imx6dl-dhcom-pdk2.dts b/dts/upstream/src/arm/nxp/imx/imx6dl-dhcom-pdk2.dts
new file mode 100644 (file)
index 0000000..3823592
--- /dev/null
+++ b/dts/upstream/src/arm/nxp/imx/imx6dl-dhcom-pdk2.dts
@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2024 Marek Vasut <marex@denx.de>
+ *
+ * DHCOM iMX6 variant:
+ * DHCM-iMX6DL-C080-R102-F0819-E-SD-RTC-T-HS-I-01D2
+ * DHCOM PCB number: 493-400 or newer
+ * PDK2 PCB number: 516-400 or newer
+ */
+/dts-v1/;
+
+#include "imx6dl.dtsi"
+#include "imx6qdl-dhcom-som.dtsi"
+#include "imx6qdl-dhcom-pdk2.dtsi"
+
+/ {
+       model = "DH electronics i.MX6DL DHCOM on Premium Developer Kit (2)";
+       compatible = "dh,imx6dl-dhcom-pdk2", "dh,imx6dl-dhcom-som",
+                    "fsl,imx6dl";
+};