The existing compatible name for U-Boot's k3 system controller driver
i.e "ti,am625-system-controller" has been added to linux[1] device-tree.
This compatible in kernel is meant for configuring the Control Module
registers (CTRL_MMR0).
However in U-Boot, the matching driver was being used to load the system
firmware on the secure M-cores by the R5 SPL and therefore must be
updated to a different compatible to avoid conflicts.
Therefore, this patch renames all references of the compatible to
"ti,am654-tisci-rproc-r5". The "-r5" is appended so as to avoid any
future conflicts since r5 specific compatibles should only be useful for
U-Boot.
[1]: 5959618631fe ("dt-bindings: mfd: ti,j721e-system-controller: Add compatible string for AM654")
https://lore.kernel.org/r/20250421214620.3770172-2-afd@ti.com
Signed-off-by: Anshul Dalal <anshuld@ti.com>
K3 specific SoCs have a dedicated microcontroller for doing
resource management. Any HLOS/firmware on compute clusters should
load a firmware to this microcontroller before accessing any resource.
Adding support for loading this firmware.
After the K3 system controller got loaded with firmware and started
up it sends out a boot notification message through the secure proxy
facility using the TI SCI protocol. Intercept and receive this message
through the rproc start operation which will need to get invoked
explicitly after the firmware got loaded.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
