On Mon, Jan 23, 2017 at 03:56:13PM +0000, Marc Zyngier wrote:
> The joys of copy/paste: the example of a virtualization capable GIC
> in the DT binding was wrong, and propagated to dozens of platforms.
> By having a GICC region that is only 4kB (instead of 8kB), we
> end-up not being able to access the GICC_DIR register which is on
> the second page.
>
> Oh well. Let's fix the source of the crap before tackling individual
> offenders. While we're at it, also fix the compatibility string to
> mention "arm,gic-400", which is the name of the actual implementation
> of the GICv2 spec.
"While we're at it", code for should be in a separate patch. :) I
wouldn't really care here, but you are not fixing anything...
>
> Acked-by: Tony Lindgren <tony@xxxxxxxxxxx>
> Acked-by: Mark Rutland <mark.rutland@xxxxxxx>
> Acked-by: Arnd Bergmann <arnd@xxxxxxxx>
> Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx>
> ---
> Documentation/devicetree/bindings/interrupt-controller/arm,gic.txt | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/interrupt-controller/arm,gic.txt b/Documentation/devicetree/bindings/interrupt-controller/arm,gic.txt
> index 5393e2a..a3d51ed 100644
> --- a/Documentation/devicetree/bindings/interrupt-controller/arm,gic.txt
> +++ b/Documentation/devicetree/bindings/interrupt-controller/arm,gic.txt
> @@ -107,11 +107,11 @@ Required properties:
> Example:
>
> interrupt-controller@2c001000 {
> - compatible = "arm,cortex-a15-gic";
> + compatible = "arm,gic-400";
Which one is correct really depends on the platform. The A15 can have an
internal or external (gic-400) GIC. The former string is correct for an
A15 with an internal GIC. One such platform is Calxeda midway.
Arguably, we should not have arm,gic-400 by itself, but have an SoC
specific compatible in case it was integrated in interesting ways.
Rob
--
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
