Help with interrupts = <...> section of dtb file

[Subodh Nijsure]

On Wed, Apr 1, 2009 at 11:31 PM, Subodh Nijsure
<subodh.nijsure at gmail.com> wrote:
> Hello,
>
> I need some help in understanding the interrupts = <...> section of DTB file.
>
> I have read the Documentation/booting-without-of.txt  and I understand
> that interrupts = <A B> means interrupt A and B is "enum" that
> indicates if its an edge or level interrupt.
>
> I need bit of help in parsing the description below:
>
>                 enet0: ethernet at 24000 {
>
>                         cell-index = <0>;
>
>                         device_type = "network";
>
>                         model = "eTSEC";
>
>                         compatible = "gianfar";
>
>                         reg = <0x24000 0x1000>;
>
>                         local-mac-address = [ 00 00 00 00 00 00 ];
>
>                         interrupts = <29 2 30 2 34 2>;
>
>                         interrupt-parent = <&mpic>;
>
>                         phy-handle = <&phy0>;
>
>                         phy-connection-type = "sgmii";
>
>                 };
>
> If I follow the interrupts description are we saying that this eTSEC1
> on the board will generate interrupt 29, 30 & 34? Should see them as
> registered interrupts in /proc/interrupt?
>

Apologies about this --

a duh moment.  eth0 was marked as down once I brought it up I do see
those interrupts registered...

cat /proc/interrupts
           CPU0       CPU1
 29:          0          0   OpenPIC   Level     enet_tx
 30:          0          0   OpenPIC   Level     enet_rx
 34:          0          0   OpenPIC   Level     enet_error


/Subodh