[PATCH v3 0/3] Ethernet support for Raspberry Pi 4

[LABBE Corentin]

On Wed, Jan 29, 2020 at 07:21:09AM +0900, Jaehoon Chung wrote:
> On 1/27/20 9:06 PM, Andre Przywara wrote:
> > On Mon, 27 Jan 2020 12:50:16 +0100
> > LABBE Corentin <clabbe at baylibre.com> wrote:
> > 
> > Hi,
> > 
> >> On Mon, Jan 27, 2020 at 04:27:03PM +0530, Amit Tomer wrote:
> >>> Hi,
> >>>   
> >>>> The kernel panic just after with "OF: reserved mem: failed to allocate memory for node 'linux,cma'" but that's another story.  
> >>>
> >>> But this comes even without having Ethernet patches and when one use
> >>> booti instead of bootefi, right ?
> >>>   
> >>
> >> So booti is unsupported on rpi 4 ?
> > 
> > It should be supported, but apparently there is some bug. I guess it's about not properly reserving memory used by the armstub/ATF. Do you use the embedded RPi foundation armstub or ATF (do you have an "armstub=..." line in config.txt)?
> > 
> > I will try take a look at this later.
> 
> I'm not sure, i had similar issue about failed to allocate memory cma.
> I had enabled CONFIG_ARCH_FIXUP_OF_MEMORY. And i changed the loading address (kernel/ramdisk/device-tree) in boot script for our environment.
> Because sometime some address range is overwritten.
> 

Hello

I have searched both in uboot and linux sources and didnt found any CONFIG_ARCH_FIXUP_OF_MEMORY.
Could you give what you did exactly ?

Regards