ARM: dts: imx6qdl-kontron-samx6i: add Kontron SMARC SoM Support

The patch adds the following interfaces according the SMARC Spec 1.1
[1] and provided schematics:
 - SMARC SPI0/1
   Note: Since Kontron still uses silicon revisions below 1.3 they have
         add a spi-nor to implement Workaround #1 of erratum ERR006282.
 - SMARC SDIO
 - SMARC LCD
 - SMARC HDMI
 - SMARC Management pins
   Note: Kontron don't route all of these pins to the i.MX6, some are
         routed to the SoM CPLD.
 - SMARC GPIO
 - SMARC CSI Camera
   Note: As specified in [1] the data lanes are shared to cover the
         csi and the parallel case. The case depends on the baseboard so
         muxing the data lanes is not part of this patch.
 - SMARC I2S
 - SMARC Watchdog
   Note: The watchdog output pin is routed to the CPLD and the SMARC
         header. The CPLD performs a reset after a 30s timeout so we
         need to enable the watchdog per default.
 - SMARC module eeprom

Due to the lack of hardware not all of these interfaces are tesetd.

[1] https://sget.org/standards/smarc

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

1 files changed, 12 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/imx6dl-kontron-samx6i.dtsi b/arch/arm/boot/dts/imx6dl-kontron-samx6i.dtsi
new file mode 100644
index 000000000000..a864fdbd5f16
--- /dev/null
+++ b/arch/arm/boot/dts/imx6dl-kontron-samx6i.dtsi
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0 OR X11
+/*
+ * Copyright 2019 (C) Pengutronix, Marco Felsch <kernel@pengutronix.de>
+ */
+
+#include "imx6dl.dtsi"
+#include "imx6qdl-kontron-samx6i.dtsi"
+
+/ {
+	model = "Kontron SMARC sAMX6i Dual-Lite/Solo";
+	compatible = "kontron,imx6dl-samx6i", "fsl,imx6dl";
+};