Re: [PATCH v2] dts: add specific compatible type for Terasic DE0-NANO-SoC Board

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Hi Tim!

On Thu, Feb 25, 2016 at 11:05:05AM +0100, Tim Sander wrote:
> From: Tim Sander <tim@xxxxxxxxxxxxxxx>
> 
> Add a more specific compatible string:"terasic,de0-nano-soc" for respective board.
> Background: when checking for bootspec entries, some board specific fixups are
> not apropriate for board of the same platform ("altr,socfpga-cyclone5").
> The same aproach is taken with the EBV-Socrates board.
> 
> Signed-off-by: Tim Sander <tim@xxxxxxxxxxxxxxx>
> ---
>  Documentation/devicetree/bindings/vendor-prefixes.txt | 1 +
>  arch/arm/boot/dts/socfpga_cyclone5_de0_sockit.dts     | 2 +-
>  2 files changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
> index 72e2c5a..d1f7803 100644
> --- a/Documentation/devicetree/bindings/vendor-prefixes.txt
> +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
> @@ -230,6 +230,7 @@ synology	Synology, Inc.
>  tbs	TBS Technologies
>  tcl	Toby Churchill Ltd.
>  technologic	Technologic Systems
> +terasic	Terasic Inc.
>  thine	THine Electronics, Inc.
>  ti	Texas Instruments
>  tlm	Trusted Logic Mobility

You should IMHO split this up in two patches.
First patch: add terasic

> diff --git a/arch/arm/boot/dts/socfpga_cyclone5_de0_sockit.dts b/arch/arm/boot/dts/socfpga_cyclone5_de0_sockit.dts
> index afea364..704aa9d 100644
> --- a/arch/arm/boot/dts/socfpga_cyclone5_de0_sockit.dts
> +++ b/arch/arm/boot/dts/socfpga_cyclone5_de0_sockit.dts
> @@ -18,7 +18,7 @@
>  
>  / {
>  	model = "Terasic DE-0(Atlas)";
> -	compatible = "altr,socfpga-cyclone5", "altr,socfpga";
> +	compatible = "terasic,de0-nano-soc","altr,socfpga-cyclone5", "altr,socfpga";

Second patch: this.

>  
>  	chosen {
>  		bootargs = "earlyprintk";

The naming of this board still confuses me though.
It has 3 different names now:

	- de0_sockit.dts
	- Terasic DE-0(Atlas)
	- de0-nano-soc

And according to Terasic DE0-Nano-SoC is the same as Atlas-SoC with a different software?!
So all three names are actually correct ?! Weird.

Regards,
Steffen

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