Re: [RESEND,v2,8/9] arm64: dts: mediatek: add mt7986a support

Add basic chip support for Mediatek mt7986a, include
uart nodes with correct clocks, rng node with correct clock,
and watchdog node and mt7986a pinctrl node.

Add cpu node, timer node, gic node, psci and reserved-memory node
for ARM Trusted Firmware,

Add clock controller nodes, include 40M clock source, topckgen, infracfg,
apmixedsys and ethernet subsystem.

Signed-off-by: Sam Shih <redacted>

---
v2: modified clock and uart node due to clock driver updated
---
  arch/arm64/boot/dts/mediatek/Makefile        |   1 +
  arch/arm64/boot/dts/mediatek/mt7986a-rfb.dts |  49 ++++
  arch/arm64/boot/dts/mediatek/mt7986a.dtsi    | 227 +++++++++++++++++++
  3 files changed, 277 insertions(+)
  create mode 100644 arch/arm64/boot/dts/mediatek/mt7986a-rfb.dts
  create mode 100644 arch/arm64/boot/dts/mediatek/mt7986a.dtsi

diff --git a/arch/arm64/boot/dts/mediatek/Makefile b/arch/arm64/boot/dts/mediatek/Makefile
index 4f68ebed2e31..e6c3a73b9e4a 100644
--- a/arch/arm64/boot/dts/mediatek/Makefile
+++ b/arch/arm64/boot/dts/mediatek/Makefile

@@ -7,6 +7,7 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += mt6797-evb.dtb
  dtb-$(CONFIG_ARCH_MEDIATEK) += mt6797-x20-dev.dtb
  dtb-$(CONFIG_ARCH_MEDIATEK) += mt7622-rfb1.dtb
  dtb-$(CONFIG_ARCH_MEDIATEK) += mt7622-bananapi-bpi-r64.dtb
+dtb-$(CONFIG_ARCH_MEDIATEK) += mt7986a-rfb.dtb
  dtb-$(CONFIG_ARCH_MEDIATEK) += mt8167-pumpkin.dtb
  dtb-$(CONFIG_ARCH_MEDIATEK) += mt8173-elm.dtb
  dtb-$(CONFIG_ARCH_MEDIATEK) += mt8173-elm-hana.dtb

diff --git a/arch/arm64/boot/dts/mediatek/mt7986a-rfb.dts b/arch/arm64/boot/dts/mediatek/mt7986a-rfb.dts
new file mode 100644
index 000000000000..a58347c09ab2
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt7986a-rfb.dts

@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (C) 2021 MediaTek Inc.
+ * Author: Sam.Shih <sam.shih@mediatek.com>
+ */
+
+/dts-v1/;
+#include "mt7986a.dtsi"
+
+/ {
+	model = "MediaTek MT7986a RFB";
+	compatible = "mediatek,mt7986a-rfb";
+	chosen {
+		bootargs = "console=ttyS0,115200n1 loglevel=8  \
+				earlycon=uart8250,mmio32,0x11002000";