arm64: dts: imx8ulp: add scmi firmware node

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>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/imx8ulp.dtsi b/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
index fb8714379026fc7f79dba84135fa4e8b054bdcd4..8ee040e3cbae4c2f1b08a3843aba83f615c0bf26 100644 (file)
--- 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 @@
                #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>;