Re: [PATCH v7 4/5] ARM: tegra: Add efuse and apbmisc bindings

Peter De Schrijver
2014-06-05T22:13:07Z

On Thu, Jun 05, 2014 at 08:41:55PM +0200, Stephen Warren wrote:
> On 06/05/2014 07:09 AM, Peter De Schrijver wrote:
> > Add efuse and apbmisc bindings for Tegra20, Tegra30, Tegra114 and Tegra124.
>
> > diff --git a/arch/arm/boot/dts/tegra114.dtsi b/arch/arm/boot/dts/tegra114.dtsi
>
> > + apbmisc@70000800 {
> > + compatible = "nvidia,tegra114-apbmisc", "nvidia,tegra20-apbmisc";
>
> Is the Tegra114 APBMISC register layout 100% a backwards-compatible
> superset of that in Tegra20? For both registers the code currently uses
> *and* all possible registers the code could ever use? Since the APB MISC
> is a bit of a dumping ground for random registers, that feels unlikely,
> but perhaps it's possible.

For all I can see it is. At least for the registers the kernel is likely to
use.

Cheers,

Peter.