The TI K3 R5F and C6x cores can address 48-bit memory space through the Region Address Translator (RAT) unit. Whereas the TI K3 C7x has a native 48-bit address bus. RAT is usually programmed from the firmware itself. Configure the remoteproc device DMA mask to 48 bits to enable full addressing capability for DMA operations.
Testing done: 1. Verified above devices are able to access 48-bit addresses with compatible firmware. 2. Verified IPC with Cortex-R5F and C7x DSPs on TI J784S4 EVM. 3. Verified none of the patch generate any new warning/errors. Thanks, Beleswar Rahul T R (2): remoteproc: k3-r5: Set a 48-bit DMA mask for remoteproc device remoteproc: k3-dsp: Set a 48-bit DMA mask for remoteproc device drivers/remoteproc/ti_k3_dsp_remoteproc.c | 4 ++++ drivers/remoteproc/ti_k3_r5_remoteproc.c | 4 ++++ 2 files changed, 8 insertions(+) -- 2.34.1
