[U-Boot] [PATCH 2/2] boards: ls2080: Disable fdt copying by default

Prabhakar Kushwaha prabhakar.kushwaha at nxp.com
Tue Mar 1 04:55:46 CET 2016


> -----Original Message-----
> From: Scott Wood [mailto:oss at buserror.net]
> Sent: Tuesday, March 01, 2016 7:13 AM
> To: york sun <york.sun at nxp.com>; U-Boot Mailing List <u-
> boot at lists.denx.de>
> Cc: Prabhakar Kushwaha <prabhakar at freescale.com>
> Subject: Re: [U-Boot] [PATCH 2/2] boards: ls2080: Disable fdt copying by
> default
> 
> On Tue, 2016-03-01 at 00:08 +0000, york sun wrote:
> > Sorry for top posting. I am on outlook web access.
> >
> > There may be some limitation on fdt relocation. Without setting
> > fdt_high, u -boot relocates the device tree toward the end of useable
> > memory. I haven't got a chance to debug why it doesn't work.
> >
> > This patch is to disable the relocation by default. A magic number
> > 0xa0000000 doesn't make much sense here.
> 
> I agree, if the number is arbitrary.  But if Linux has a limitation, as it does on
> arm32, then it should be expressed here.
> 

Just for understanding purpose.  
u-boot in case of arm32 can only access memory in 32 bit range. 
 Will there be possibility of u-boot copying dtb in any memory not accessible to core. 

--prabhakar



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