Re: [PATCH 26/41] ARM: omap1: relocate static I/O mapping

Arnd Bergmann
2022-04-20T19:22:55Z

On Wed, Apr 20, 2022 at 3:46 PM Aaro Koskinen <aaro.koskinen@iki.fi> wrote:
>
> Hi,
>
> On Tue, Apr 19, 2022 at 03:37:08PM +0200, Arnd Bergmann wrote:
> > From: Arnd Bergmann <arnd@arndb.de>
> >
> > The address range 0xfee00000-0xfeffffff is used for PCI and
> > PCMCIA I/O port mappings, but OMAP1 has its static mappings
> > there as well.
> >
> > Move the OMAP1 addresses a little higher to avoid crashing
> > at boot.
>
> This has the same problem I reported in 2019, with earlyprintk the
> system no longer boots:
>
> https://marc.info/?t=156530014200005&r=1&w=2
>
> Tested on OSK and SX1/qemu.

Thanks a lot for testing!

I managed to get to the bottom of this after just a few hours, and
it turned out to be a simple math error on my end, as I got
the alignment wrong, the offset has to be 0x00f00000
instead of 0x00fb0000 be section aligned. I made sure the
kernel boots up (to the point of missing a rootfs) and uploaded
the fixed branch.

Arnd