MLK-24512: dts: arm64: freescale: imx8mm ddr4 ab2 target support

Add support for imx8mm ddr4 audio board 2.0 target for
revision C and B; Include Cortex-M4 dts support

Signed-off-by: Adrian Alonso <adrian.alonso@nxp.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-ddr4-ab2-m4-revb.dts b/arch/arm64/boot/dts/freescale/imx8mm-ddr4-ab2-m4-revb.dts
new file mode 100644
index 000000000000..6ff765cb4696
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mm-ddr4-ab2-m4-revb.dts
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2020 NXP
+ */
+
+/dts-v1/;
+
+#include "imx8mm-ddr4-ab2-m4.dts"
+
+/ {
+	model = "FSL i.MX8MM DDR4 RevB Audio Board 2.0";
+};
+
+/*
+ * External OSC is used as PCIe REFCLK on RevC board.
+ * Use the -revb.dts file to distiguish the different
+ * HW design.
+ */
+&pcie0 {
+	ext_osc = <0>;
+	status = "okay";
+};