On 04:36-20230329, Hari Nagalla wrote:
> The J784S4 SoCs have 4 dual-core Arm Cortex-R5F processor (R5FSS)
> subsystems/clusters. One R5F cluster (MCU_R5FSS0) is present within
> the MCU domain (MCU_R5FSS0), and the remaining three clusters are
> present in the MAIN domain (MAIN_R5FSS0, MAIN_R5FSS1 & MAIN_R5FSS2).
> The functionality of the R5FSS is same as the R5FSS functionality on
> earlier K3 platform devices J721S2. Each of the R5FSS can be configured
> at boot time to be either run in a LockStep mode or in an Asymmetric
> Multi Processing (AMP) fashion in Split-mode.
>
> Signed-off-by: Hari Nagalla <hnagalla@xxxxxx>
> ---
> .../boot/dts/ti/k3-j784s4-mcu-wakeup.dtsi | 42 +++++++++++++++++++
> 1 file changed, 42 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j784s4-mcu-wakeup.dtsi
> index 64bd3dee14aa..e290e0925bc9 100644
> --- a/arch/arm64/boot/dts/ti/k3-j784s4-mcu-wakeup.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-j784s4-mcu-wakeup.dtsi
> @@ -309,4 +309,46 @@
> ti,cpts-periodic-outputs = <2>;
> };
> };
> +
> + mcu_r5fss0: r5fss@41000000 {
> + compatible = "ti,j721s2-r5fss";
> + ti,cluster-mode = <1>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges = <0x41000000 0x00 0x41000000 0x20000>,
> + <0x41400000 0x00 0x41400000 0x20000>;
> + power-domains = <&k3_pds 345 TI_SCI_PD_EXCLUSIVE>;
> +
> + mcu_r5fss0_core0: r5f@41000000 {
> + compatible = "ti,j721s2-r5f";
> + reg = <0x41000000 0x00010000>,
> + <0x41010000 0x00010000>;
> + reg-names = "atcm", "btcm";
> + ti,sci = <&sms>;
> + ti,sci-dev-id = <346>;
> + ti,sci-proc-ids = <0x01 0xff>;
> + resets = <&k3_reset 346 1>;
> + firmware-name = "j784s4-mcu-r5f0_0-fw";
> + ti,atcm-enable = <1>;
> + ti,btcm-enable = <1>;
> + ti,loczrama = <1>;
> + status = "disabled";
Why are these disabled by default?
> + };
> +
> + mcu_r5fss0_core1: r5f@41400000 {
> + compatible = "ti,j721s2-r5f";
> + reg = <0x41400000 0x00010000>,
> + <0x41410000 0x00010000>;
> + reg-names = "atcm", "btcm";
> + ti,sci = <&sms>;
> + ti,sci-dev-id = <347>;
> + ti,sci-proc-ids = <0x02 0xff>;
> + resets = <&k3_reset 347 1>;
> + firmware-name = "j784s4-mcu-r5f0_1-fw";
> + ti,atcm-enable = <1>;
> + ti,btcm-enable = <1>;
> + ti,loczrama = <1>;
> + status = "disabled";
> + };
> + };
> };
> --
> 2.17.1
>
--
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3 1A34 DDB5 849D 1736 249D
