Re: [PATCH 0/2] Drop all accesses to MPSS PERPH register space

From: Evan Green
Date: Wed Apr 29 2020 - 13:28:22 EST


On Wed, Apr 15, 2020 at 7:51 AM Sibi Sankar <sibis@xxxxxxxxxxxxxx> wrote:
>
> 7C retail devices using MSA based boot will result in a fuse combination
> which will prevent accesses to MSS PERPH register space where the mpss
> clocks and halt-nav reside. Hence requesting a halt-nav as part of the
> SSR sequence will result in a NoC error. Issuing HALT NAV request and
> turning on the mss clocks as part of SSR will no longer be required
> since the modem firmware will have the necessary fixes to ensure that
> there are no pending NAV DMA transactions thereby ensuring a smooth
> SSR.
>
> Sibi Sankar (2):
> dt-bindings: remoteproc: qcom: Replace halt-nav with spare-regs
> remoteproc: qcom_q6v5_mss: Drop accesses to MPSS PERPH register space

I haven't tested things in the "production" fuse configuration yet,
but in my current configuration I've got a tree that's running the
modem well.

Tested-by: Evan Green <evgreen@xxxxxxxxxxxx>