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Message-Id: <20211117032740.2518926-3-peng.fan@oss.nxp.com>
Date: Wed, 17 Nov 2021 11:27:39 +0800
From: "Peng Fan (OSS)" <peng.fan@....nxp.com>
To: robh+dt@...nel.org, shawnguo@...nel.org, s.hauer@...gutronix.de
Cc: kernel@...gutronix.de, festevam@...il.com, linux-imx@....com,
ping.bai@....com, aisheng.dong@....com, devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
Peng Fan <peng.fan@....com>
Subject: [PATCH 2/3] arm64: dts: imx8ulp: add scmi firmware node
From: Peng Fan <peng.fan@....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@....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@...1f000 {
+ 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
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