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.

Signed-off-by: Marek Vasut <marex@denx.de>
---
Cc: Alexander Stein <redacted>
Cc: Christoph Niedermaier <cniedermaier@dh-electronics.com>
Cc: Conor Dooley <conor+dt@kernel.org>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Gregor Herburger <redacted>
Cc: Hiago De Franco <redacted>
Cc: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Cc: Joao Paulo Goncalves <redacted>
Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
Cc: Marek Vasut <marex@denx.de>
Cc: Mathieu Othacehe <redacted>
Cc: Max Merchel <redacted>
Cc: Michael Walle <mwalle@kernel.org>
Cc: Parthiban Nallathambi <redacted>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Rob Herring <robh@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: imx@lists.linux.dev
Cc: kernel@dh-electronics.com
Cc: linux-arm-kernel@lists.infradead.org
---
 arch/arm/boot/dts/nxp/imx/Makefile            |  1 +
 .../boot/dts/nxp/imx/imx6dl-dhcom-pdk2.dts    | 20 +++++++++++++++++++
 2 files changed, 21 insertions(+)
 create mode 100644 arch/arm/boot/dts/nxp/imx/imx6dl-dhcom-pdk2.dts

diff --git a/arch/arm/boot/dts/nxp/imx/Makefile b/arch/arm/boot/dts/nxp/imx/Makefile
index 92e291603ea13..541eebb968cf4 100644
--- a/arch/arm/boot/dts/nxp/imx/Makefile
+++ b/arch/arm/boot/dts/nxp/imx/Makefile

@@ -73,6 +73,7 @@ dtb-$(CONFIG_SOC_IMX6Q) += \
        imx6dl-cubox-i-emmc-som-v15.dtb \
        imx6dl-cubox-i-som-v15.dtb \
        imx6dl-dfi-fs700-m60.dtb \
+       imx6dl-dhcom-pdk2.dtb \
        imx6dl-dhcom-picoitx.dtb \
        imx6dl-eckelmann-ci4x10.dtb \
        imx6dl-emcon-avari.dtb \

diff --git a/arch/arm/boot/dts/nxp/imx/imx6dl-dhcom-pdk2.dts

b/arch/arm/boot/dts/nxp/imx/imx6dl-dhcom-pdk2.dts
new file mode 100644
index 0000000000000..38235925257a7

--- /dev/null
+++ b/arch/arm/boot/dts/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";
+};