On Wed, Nov 17, 2021 at 11:27:39AM +0800, Peng Fan (OSS) wrote:
> From: Peng Fan <peng.fan@xxxxxxx>
>
> 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@xxxxxxx>
> ---
> 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 {
Hyphen is more recommended than underscore for node name. Or just
follow the naming in arm,scmi.yaml example?
Shawn
> + 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
>
