<fsl,qman-channel-id> in dts file

4 messages, 2 authors, 2014-06-10 · open the first message on its own page

<fsl,qman-channel-id> in dts file

From: Tony <hidden>
Date: 2014-06-09 11:43:53

How's the fsl,qman-channel-id value different for different targets ?
Is there any document on how this value is achieved ?

Or can it be any value ???

Alan.

Re: <fsl,qman-channel-id> in dts file

From: Emil Medve <hidden>
Date: 2014-06-09 15:10:22

Hello Tony,


On 06/09/2014 06:43 AM, Tony wrote:
How's the fsl,qman-channel-id value different for different targets ?
Channel ids are assigned in hardware
Is there any document on how this value is achieved ?
They are described in the RM of each SoC and in the DPAA RM
Or can it be any value ???
Nope. It must be the right value or frames will end up in the wrong
portal or worse


Cheers,

Re: <fsl,qman-channel-id> in dts file

From: Tony <hidden>
Date: 2014-06-09 15:28:24

Thank Emil.

Where can i find the details about a 'diff' of qman revisions ? The code i
ported doesnt support latest qman revision (REV3). Can i still work on qman
REV1.1 for all the latest targets ? (read t-series)

Regards


On Mon, Jun 9, 2014 at 8:32 PM, Emil Medve [off-list ref]
wrote:
Hello Tony,


On 06/09/2014 06:43 AM, Tony wrote:
quoted
How's the fsl,qman-channel-id value different for different targets ?
Channel ids are assigned in hardware
quoted
Is there any document on how this value is achieved ?
They are described in the RM of each SoC and in the DPAA RM
quoted
Or can it be any value ???
Nope. It must be the right value or frames will end up in the wrong
portal or worse


Cheers,

Re: <fsl,qman-channel-id> in dts file

From: Emil Medve <hidden>
Date: 2014-06-10 13:26:30

Hello Tony,


On 06/09/2014 10:28 AM, Tony wrote:
Thank Emil.

Where can i find the details about a 'diff' of qman revisions ?
Let me look if someody bothered to write an AN about this
The code
i ported doesnt support latest qman revision (REV3).
Ported from what (I suspect) SDK release? v1.5 should already have
support for the latest xMan revision(s)
Can i still work on
qman REV1.1 for all the latest targets ? (read t-series)
I'm inclined to say yes (of course the new features will not be
available), but I need to have a look at the code to see with what
limitations


Cheers,

Regards


On Mon, Jun 9, 2014 at 8:32 PM, Emil Medve <Emilian.Medve@freescale.com
<mailto:Emilian.Medve@freescale.com>> wrote:

    Hello Tony,


    On 06/09/2014 06:43 AM, Tony wrote:
    > How's the fsl,qman-channel-id value different for different targets ?

    Channel ids are assigned in hardware

    > Is there any document on how this value is achieved ?

    They are described in the RM of each SoC and in the DPAA RM

    > Or can it be any value ???

    Nope. It must be the right value or frames will end up in the wrong
    portal or worse


    Cheers,




_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@lists.ozlabs.org
https://lists.ozlabs.org/listinfo/linuxppc-dev
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help