[PATCH v7 2/7] dt-bindings: sram: describe option to reserve parts of the memory

[Grant Likely]

On Mon, 20 Jan 2014 16:42:58 +0100, Heiko Stübner <heiko at sntech.de> wrote:
> Some SoCs need parts of their sram for special purposes. So while being part
> of the peripheral, it should not be part of the genpool controlling the sram.
> 
> Therefore add an option mmio-sram-reserved to keep arbitrary portions of the
> sram from general usage.
> 
> Suggested-by: Rob Herring <robherring2 at gmail.com>
> Signed-off-by: Heiko Stuebner <heiko at sntech.de>
> Tested-by: Ulrich Prinz <ulrich.prinz at googlemail.com>
> Acked-by: Rob Herring <robh at kernel.org>
> ---
>  Documentation/devicetree/bindings/misc/sram.txt |    8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/misc/sram.txt b/Documentation/devicetree/bindings/misc/sram.txt
> index 4d0a00e..09ee7a3 100644
> --- a/Documentation/devicetree/bindings/misc/sram.txt
> +++ b/Documentation/devicetree/bindings/misc/sram.txt
> @@ -8,9 +8,17 @@ Required properties:
>  
>  - reg : SRAM iomem address range
>  
> +Optional properties:
> +
> +- mmio-sram-reserved: ordered list of reserved chunks inside the sram that
> +  should not be used by the operating system.
> +  Format is <base size>, <base size>, ...; with base being relative to the
> +  reg property base.
> +

We've now got a draft binding for reserved memory. Can you use the format
here? Basically each reserved region is a sub node with either a reg
property or a size property.

This is specifically for sram, so I won't make a big deal about it, but
it would be good to have some commonality.

g.