Re: [PATCH v3 16/22] firmware: arm_scmi: add arm_mhu specific mailbox interface

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 




On Fri, Oct 13, 2017 at 8:17 PM, Sudeep Holla <sudeep.holla@xxxxxxx> wrote:
> On 13/10/17 15:12, Jassi Brar wrote:
>
>> In MHU the 32bits are tied together and all go to one target
>> processor. Whereas on QCom, each bit corresponds to independent signal
>> going to a different target processor.
>>
>
> I was not aware of that. Thanks for clarifying the differences.
>
>> IOW, QCom has 32 channels per register whereas MHU has one. The
>
> OK, that depends on how we consider it. As you said yes it just goes to
> single target processor, but hardware designers consider it still 32
> channels are they can be controller independently without any locking.
>
MHU spec says it has three channels.
Locking is not a criterion for a channel. A signal and associated data
transfer defines a channel.

cheers
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]


  Powered by Linux