Re: [PATCH 0/2] ARM: decompressor: support AUTO_ZRELADDR and appended DTB

[Christian Marangi]

On Sat, Jan 20, 2024 at 12:19:33PM +0100, Geert Uytterhoeven wrote:
> Hi Christian,
> 
> On Fri, Jan 19, 2024 at 9:14 PM Christian Marangi <ansuelsmth@xxxxxxxxx> wrote:
> > With this applied and ARM_ATAG_DTB_COMPAT_IGNORE_MEM enabled (more
> > info in the related patch) ipq806x can boot right away with AUTO_ZRELADDR
> > enabled and a correct memory node defined in DTS.
> >
> > It's needed to ignore MEM ATAGs as most of the time the values from the
> > bootloader are hardcoded and OEM didn't care to actually provide them
> > resulting in funny situation where a Netgear R7800 with 512Mb of RAM
> > have Uboot passing 1.7GB of RAM with ATAGS.
> 
> I guess you still need other values from ATAGS, so building a kernel
> without CONFIG_ARM_ATAG_DTB_COMPAT is not an option?
>

As I said in the other patch, yes DTB_COMPAT is still needed for
bootargs passed from the bootloader via ATAGs. Sorry for not making this
detail more clear in the cover letter.

-- 
	Ansuel