On 12:07-20230329, Apurva Nandan wrote:
> From: Suman Anna <s-anna@xxxxxx>
>
> J721E SoCs have two R5F clusters in the MAIN domain, and both of these
> are configured for LockStep mode at the moment. Switch both of these R5F
> clusters to Split mode by default to maximize the number of R5F cores.
> The MCU R5F cluster continues to be in the preferred LockStep mode.
>
> Note that this configuration is the default for remoteproc mode (kernel
> driver boots the R5F processors). These will be overridden for early-booted
> remoteprocs through the corresponding IPC-only support in the K3 R5F
> remoteproc driver.
>
This looks like a firmware specific behavior, best done in overlay along
with any custom memory map controls you may have to do for that specific
firmware.
If this is indeed a fixes, the commit message needs to clearly indicate
why this is a fix and use the Fixes tag to propogate the fixes.
> Signed-off-by: Suman Anna <s-anna@xxxxxx>
> Signed-off-by: Apurva Nandan <a-nandan@xxxxxx>
> ---
> arch/arm64/boot/dts/ti/k3-j721e-main.dtsi | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
> index c935622f0102..31dadbdc0d5a 100644
> --- a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
> @@ -1722,7 +1722,7 @@ watchdog1: watchdog@2210000 {
>
> main_r5fss0: r5fss@5c00000 {
> compatible = "ti,j721e-r5fss";
> - ti,cluster-mode = <1>;
> + ti,cluster-mode = <0>;
> #address-cells = <1>;
> #size-cells = <1>;
> ranges = <0x5c00000 0x00 0x5c00000 0x20000>,
> @@ -1762,7 +1762,7 @@ main_r5fss0_core1: r5f@5d00000 {
>
> main_r5fss1: r5fss@5e00000 {
> compatible = "ti,j721e-r5fss";
> - ti,cluster-mode = <1>;
> + ti,cluster-mode = <0>;
> #address-cells = <1>;
> #size-cells = <1>;
> ranges = <0x5e00000 0x00 0x5e00000 0x20000>,
> --
> 2.34.1
>
--
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3 1A34 DDB5 849D 1736 249D
