[PATCH 4/4] arm64: Add initial DTS for APM X-Gene Storm SOC and APM Mustang board

Vinayak Kale vkale at apm.com
Wed Apr 24 02:21:24 EDT 2013


On Tue, Apr 23, 2013 at 11:41 PM, Olof Johansson <olof at lixom.net> wrote:
> On Sat, Apr 20, 2013 at 12:45:31PM +0530, Vinayak Kale wrote:
>
>> +     gic: interrupt-controller at 78010000 {
>> +             compatible = "arm,cortex-a15-gic", "arm,cortex-a9-gic";
>> +             #interrupt-cells = <3>;
>> +             interrupt-controller;
>> +             reg = <0x0 0x78010000 0x0 0x1000>,      /* GIC Dist */
>> +                   <0x0 0x78020000 0x0 0x1000>,      /* GIC CPU */
>> +                   <0x0 0x78040000 0x0 0x2000>,      /* GIC VCPU Control */
>> +                   <0x0 0x78060000 0x0 0x2000>;      /* GIC VCPU */
>> +             interrupts = <1 9 0xf04>;       /* GIC Maintenence IRQ */
>> +     };
>
> Others have commented on other compatible fields, so it's my turn. :-)
>
> Is this the exact same GIC that's used with A15? I don't think it is? It might
> make more sense to use a new compatible field and add it to the driver.
>
> Also, other platforms have removed the a9 fallback, so even if you happen to
> have an a15-compatible gic, in this case you should at least take out the a9
> string.
>
Okay, will remove a9-gic string. Our's is a15-compatible gic, will use
a15 string.
>
> -Olof
Thanks
-Vinayak



More information about the linux-arm-kernel mailing list