• Apurva Nandan's avatar
    arm64: dts: ti: k3-j784s4: Add phase tags marking · 3a408698
    Apurva Nandan authored
    bootph-all as phase tag was added to dt-schema
    (dtschema/schemas/bootph.yaml) to cover U-Boot challenges with DT.
    That's why add it also to Linux to be aligned with bootloader requirement.
    
    On TI K3 J784S4 SoC, only secure_proxy_mcu and secure_proxy_sa3 nodes are
    exclusively used by R5 bootloader, rest of the dts nodes with bootph-* are
    used by later boot stages also.
    
    And secure_proxy_mcu and secure_proxy_sa3 are disabled in kernel device
    tree, and will be only enabled in R5 bootloader device tree.
    So, bootph-pre-ram for secure_proxy_mcu and secure_proxy_sa3 will be
    added in R5 bootloader device tree only.
    
    Add bootph-all for all other nodes that are used in the bootloader on
    K3 J784S4 SoC, and bootph-pre-ram is not needed specifically for any node
    in kernel dts.
    Signed-off-by: default avatarApurva Nandan <a-nandan@ti.com>
    Reviewed-by: default avatarUdit Kumar <u-kumar1@ti.com>
    Link: https://lore.kernel.org/r/20230811192030.3480616-2-a-nandan@ti.comSigned-off-by: default avatarNishanth Menon <nm@ti.com>
    3a408698
k3-j784s4-mcu-wakeup.dtsi 19.2 KB