arm64: dts: amlogic: s4: add ao secure node

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@amlogic.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240719-soc_info-v3-3-020a3b687c0c@amlogic.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>

diff --git a/arch/arm64/boot/dts/amlogic/meson-s4.dtsi b/arch/arm64/boot/dts/amlogic/meson-s4.dtsi
index c11c947fa18c88bf225a72a17897e49bf510086d..957577d986c0675a503115e1ccbc4387c2051620 100644 (file)
--- a/arch/arm64/boot/dts/amlogic/meson-s4.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-s4.dtsi
@@ -763,6 +763,14 @@
                                #reset-cells = <1>;
                        };
 
+                       sec_ao: ao-secure@10220 {
+                               compatible = "amlogic,s4-ao-secure",
+                                            "amlogic,meson-gx-ao-secure",
+                                            "syscon";
+                               reg = <0x0 0x10220 0x0 0x140>;
+                               amlogic,has-chip-id;
+                       };
+
                        ir: ir@84040 {
                                compatible = "amlogic,meson-s4-ir";
                                reg = <0x0 0x84040 0x0 0x30>;