linux-kernel - Re: [PATCH 0/3] of: add update device node status via cmdline feature

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Message-ID: <20130823071354.GB2460@b29396-Latitude-E6410>
Date:	Fri, 23 Aug 2013 15:13:55 +0800
From:	Dong Aisheng <b29396@...escale.com>
To:	Rob Herring <robherring2@...il.com>
CC:	"devicetree-discuss@...ts.ozlabs.org" 
	<devicetree-discuss@...ts.ozlabs.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Grant Likely <grant.likely@...aro.org>, <rob@...dley.net>,
	Rob Herring <rob.herring@...xeda.com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 0/3] of: add update device node status via cmdline feature

Hi Rob,

On Wed, Aug 21, 2013 at 08:23:05AM -0500, Rob Herring wrote:
....
> > How does uboot handle this according to our needs?
> > Also dynamically update the device node status with uboot command?
> > Can you help point out an example for me to check?
> >
> 
> Here's an example adding a status property with u-boot commands:
> 
> Highbank #fdt print /soc/ethernet
> ethernet@...50000 {
>         compatible = "calxeda,hb-xgmac";
>         reg = <0xfff50000 0x00001000>;
>         interrupts = <0x00000000 0x0000004d 0x00000004 0x00000000
> 0x0000004e 0x00000004 0x00000000 0x0000004f 0x00000004>;
>         dma-coherent;
> };
> Highbank #fdt set /soc/ethernet status okay
> Highbank #fdt print /soc/ethernet
> ethernet@...50000 {
>         status = "okay";
>         compatible = "calxeda,hb-xgmac";
>         reg = <0xfff50000 0x00001000>;
>         interrupts = <0x00000000 0x0000004d 0x00000004 0x00000000
> 0x0000004e 0x00000004 0x00000000 0x0000004f 0x00000004>;
>         dma-coherent;
> };
> 

Thanks for the information. I tried and it works.
However it seems using uboot fdt commands is much complicated than kernel
command line way as i did in this patch.
We probably may would rather using add more board dts way if can not accept this patch series.
I already replied that concern in last mail, can you help check it and provide suggestions?

Regards
Dong Aisheng

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