[PATCH 3/3] arm64: dts: imx8mn: Add LPDDR4 EVK board support

[Anson Huang <Anson.Huang@nxp.com>]

i.MX8MN LPDDR4 EVK board shares most of the device as DDR4 EVK board,
the ONLY difference are the DDR type and PMIC, add support for it
and make it default i.MX8MN EVK board as usual.

The PMIC driver is NOT ready, so cpu-freq needs to be disabled as
it depends on regulator provided by PMIC.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
---
 arch/arm64/boot/dts/freescale/Makefile       |  1 +
 arch/arm64/boot/dts/freescale/imx8mn-evk.dts | 30 ++++++++++++++++++++++++++++
 2 files changed, 31 insertions(+)
 create mode 100644 arch/arm64/boot/dts/freescale/imx8mn-evk.dts

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 93fce8f..783a92c 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -22,6 +22,7 @@ dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-lx2160a-qds.dtb
 dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-lx2160a-rdb.dtb
 
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-evk.dtb
+dtb-$(CONFIG_ARCH_MXC) += imx8mn-evk.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mn-ddr4-evk.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mq-evk.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mq-hummingboard-pulse.dtb
diff --git a/arch/arm64/boot/dts/freescale/imx8mn-evk.dts b/arch/arm64/boot/dts/freescale/imx8mn-evk.dts
new file mode 100644
index 0000000..61f3519
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mn-evk.dts
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2019 NXP
+ */
+
+/dts-v1/;
+
+#include "imx8mn.dtsi"
+#include "imx8mn-evk.dtsi"
+
+/ {
+	model = "NXP i.MX8MNano EVK board";
+	compatible = "fsl,imx8mn-evk", "fsl,imx8mn";
+};
+
+&A53_0 {
+	/delete-property/operating-points-v2;
+};
+
+&A53_1 {
+	/delete-property/operating-points-v2;
+};
+
+&A53_2 {
+	/delete-property/operating-points-v2;
+};
+
+&A53_3 {
+	/delete-property/operating-points-v2;
+};
-- 
2.7.4