The default U-Boot environment variables and design are all set up for both the MAIN R5FSS clusters to be in Split-mode. This is the setting in v2021.01 U-Boot and the dt nodes are synched with the kernel binding property names in commit 468ec2f3ef8f ("remoteproc: k3_r5: Sync to upstreamed kernel DT property names") merged in v2021.04-rc2.

The modes for both the clusters got switched back to LockStep mode by mistake in commit 70e167495ab2 ("arm: dts: k3-j721e: Sync Linux v5.11-rc6 dts into U-Boot") also in v2021.04-rc2. This throws the following warning messages when early-booting the cores using default env variables,

k3_r5f_rproc r5f@5d00000: Invalid op: Trying to start secondary core 7 in lockstep mode Load Remote Processor 3 with data@addr=0x82000000 98484 bytes: Failed! k3_r5f_rproc r5f@5f00000: Invalid op: Trying to start secondary core 9 in lockstep mode Load Remote Processor 5 with data@addr=0x82000000 98484 bytes: Failed!

Fix this by switching back both the clusters to the expected Split-mode. Make this mode change in the u-boot specific dtsi file to avoid such sync overrides in the future until the kernel dts is also switched to Split-mode by default.

Fixes: 70e167495ab2 ("arm: dts: k3-j721e: Sync Linux v5.11-rc6 dts into U-Boot") Reported-by: Minas Hambardzumyan minas@ti.com Signed-off-by: Suman Anna s-anna@ti.com --- v2: - Move the cluster mode change from k3-j721e-main.dtsi to the u-boot board dtsi file, k3-j721e-common-proc-board-u-boot.dtsi - Update commit description citing the reason v1: http://patchwork.ozlabs.org/project/uboot/patch/20210514003603.13940-1-s-ann...

arch/arm/dts/k3-j721e-common-proc-board-u-boot.dtsi | 8 ++++++++ 1 file changed, 8 insertions(+)

diff --git a/arch/arm/dts/k3-j721e-common-proc-board-u-boot.dtsi b/arch/arm/dts/k3-j721e-common-proc-board-u-boot.dtsi index 3384ed9f3a1e..fe095a6153ed 100644 --- a/arch/arm/dts/k3-j721e-common-proc-board-u-boot.dtsi +++ b/arch/arm/dts/k3-j721e-common-proc-board-u-boot.dtsi @@ -193,3 +193,11 @@ &mcu_fss0_ospi1_pins_default { u-boot,dm-spl; }; + +&main_r5fss0 { + ti,cluster-mode = <0>; +}; + +&main_r5fss1 { + ti,cluster-mode = <0>; +};