[U-Boot] [uboot PATCH v2] Add uboot "fdt_high" enviroment variable

Grant Likely grant.likely at secretlab.ca
Mon Jul 18 06:45:52 CEST 2011


On Sat, Jul 16, 2011 at 12:06:33PM -0400, Jerry Van Baren wrote:
> On 07/09/2011 04:40 PM, David A. Long wrote:
> >From: David A. Long<dave.long at linaro.org>
> >
> >Add a new "fdt_high" enviroment variable. This can be used to control (or prevent) the
> >relocation of the flattened device tree on boot. It can be used to prevent relocation
> >of the fdt into highmem.  The variable behaves similarly to the existing "initrd_high"
> >variable.
> >
> >Signed-off-by: David A. Long<dave.long at linaro.org>
> 
> While I agree in principle with Scott's point that it would be good
> to understand and fix/improve the ARM bootm_linux_fdt() function, I
> have bought into Dave's argument that this is a useful environment
> variable and is symmetric with "initrd_high".
> 
> Consequently, I've added this patch to the u-boot-fdt repo.  If
> anyone has strong objects, now is the time to object strongly. ;-)

No, I certainly don't object.  My point is simply that it isn't
actually a fix for the bug.  Either the panda, or the generic arm
config needs to have a safe CONFIG_SYS_BOOTMAPSZ set.

g.

> 
> Thanks,
> gvb
> 


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