From:   "Peng Fan (OSS)" <peng.fan@oss.nxp.com>
To:     robh+dt@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de
Cc:     kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com,
        ping.bai@nxp.com, aisheng.dong@nxp.com, devicetree@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        Peng Fan <peng.fan@nxp.com>
Subject: [PATCH 2/3] arm64: dts: imx8ulp: add scmi firmware node
Date:   Wed, 17 Nov 2021 11:27:39 +0800
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From: Peng Fan <peng.fan@nxp.com>

i.MX8ULP use scmi firmware based power domain and sensor support.
So add the firmware node and the sram it uses.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 arch/arm64/boot/dts/freescale/imx8ulp.dtsi | 35 ++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8ulp.dtsi b/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
index fb8714379026..d567ef93f8d8 100644
--- a/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
@@ -6,6 +6,7 @@
 #include <dt-bindings/clock/imx8ulp-clock.h>
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/power/imx8ulp-power.h>
 
 #include "imx8ulp-pinfunc.h"
 
@@ -102,6 +103,40 @@ sosc: clock-sosc {
 		#clock-cells = <0>;
 	};
 
+	sram@2201f000 {
+		compatible = "mmio-sram";
+		reg = <0x0 0x2201f000 0x0 0x1000>;
+
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0 0x0 0x2201f000 0x1000>;
+
+		scmi_buf: scmi_buf@0 {
+			compatible = "arm,scmi-shmem";
+			reg = <0x0 0x400>;
+		};
+	};
+
+	firmware {
+		scmi {
+			compatible = "arm,scmi-smc";
+			arm,smc-id = <0xc20000fe>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			shmem = <&scmi_buf>;
+
+			scmi_devpd: protocol@11 {
+				reg = <0x11>;
+				#power-domain-cells = <1>;
+			};
+
+			scmi_sensor: protocol@15 {
+				reg = <0x15>;
+				#thermal-sensor-cells = <0>;
+			};
+		};
+	};
+
 	soc@0 {
 		compatible = "simple-bus";
 		#address-cells = <1>;
-- 
2.25.1