arm64: dts: amlogic: a4: 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 A4 SoC:
soc soc0: Amlogic A4 (A113L2) Revision 40:b (1:1) Detected.

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-v3-6-020a3b687c0c@amlogic.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>

diff --git a/arch/arm64/boot/dts/amlogic/amlogic-a4-common.dtsi b/arch/arm64/boot/dts/amlogic/amlogic-a4-common.dtsi
index 496c3a2bcf25f932e8a2415f2b8b343e7af29824..54d7a2d56ef6490d0345876e73a6e15263e87210 100644 (file)
--- a/arch/arm64/boot/dts/amlogic/amlogic-a4-common.dtsi
+++ b/arch/arm64/boot/dts/amlogic/amlogic-a4-common.dtsi
@@ -67,6 +67,14 @@
                                clock-names = "xtal", "pclk", "baud";
                                status = "disabled";
                        };
+
+                       sec_ao: ao-secure@10220 {
+                               compatible = "amlogic,a4-ao-secure",
+                                            "amlogic,meson-gx-ao-secure",
+                                            "syscon";
+                               reg = <0x0 0x10220 0x0 0x140>;
+                               amlogic,has-chip-id;
+                       };
                };
        };
 };