Re: [PATCH v3 3/5] bcma: scan: accept wrapper-less cores on wrapper-less backplanes

[Florian Fainelli]

On 11/3/2026 3:30 PM, Alessio Ferri wrote:
> The scan drops every component that publishes no master or slave
> wrapper in the EROM (NMW = NSW = 0), apart from a few known cores,
> because without a wrapper bcma has no agent registers to gate and
> crash. Since usually bcma is loaded early, it ends as a loop-crash.
>
> Some backplanes, such as the integrated WLAN of the BCM6362, have
> no wrappers on any core. ChipCommon and the 802.11 core are gated
> through a SoC-level register block owned by the host driver, whose
> aread32/awrite32 ops emulate the agent registers, and core 0x837
> needs no gating.
>
> Add a wrapperless flag to struct bcma_bus, set by the host driver
> before bcma_init_bus(), and accept these cores without wrappers when
> it is set. Other hosts keep rejecting them.
>
> Signed-off-by: Alessio Ferri <alessio.ferri@xxxxxxxxxxx>

Reviewed-by: Florian Fainelli <florian.fainelli@xxxxxxxxxxxx>
--
Florian