[PATCH v3 3/6] arm64: dts: amlogic: s4: add ao secure node

[Xianwei Zhao via B4 Relay]

From: Xianwei Zhao <xianwei.zhao at amlogic.com>

Add node for board info registers, which allows getting SoC family and
board revision.

For example, with MESON_GX_SOCINFO config enabled we can get the
following information for board with Amlogic S4 SoC:
soc soc0: Amlogic S4 (S805X2) Revision 37:a (2:1) Detecte

Signed-off-by: Xianwei Zhao <xianwei.zhao at amlogic.com>
---
 arch/arm64/boot/dts/amlogic/meson-s4.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-s4.dtsi b/arch/arm64/boot/dts/amlogic/meson-s4.dtsi
index c11c947fa18c..957577d986c0 100644
--- a/arch/arm64/boot/dts/amlogic/meson-s4.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-s4.dtsi
@@ -763,6 +763,14 @@ reset: reset-controller at 2000 {
 				#reset-cells = <1>;
 			};
 
+			sec_ao: ao-secure at 10220 {
+				compatible = "amlogic,s4-ao-secure",
+					     "amlogic,meson-gx-ao-secure",
+					     "syscon";
+				reg = <0x0 0x10220 0x0 0x140>;
+				amlogic,has-chip-id;
+			};
+
 			ir: ir at 84040 {
 				compatible = "amlogic,meson-s4-ir";
 				reg = <0x0 0x84040 0x0 0x30>;

-- 
2.37.1