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

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Date:   Thu, 21 Apr 2022 08:19:45 +0300
From:   Tony Lindgren <tony@...mide.com>
To:     Arnd Bergmann <arnd@...nel.org>
Cc:     Aaro Koskinen <aaro.koskinen@....fi>,
        linux-omap <linux-omap@...r.kernel.org>,
        Janusz Krzysztofik <jmkrzyszt@...il.com>,
        Arnd Bergmann <arnd@...db.de>,
        Russell King <linux@...linux.org.uk>,
        Paul Walmsley <paul@...an.com>,
        Kevin Hilman <khilman@...nel.org>,
        Peter Ujfalusi <peter.ujfalusi@...il.com>,
        Vinod Koul <vkoul@...nel.org>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Dominik Brodowski <linux@...inikbrodowski.net>,
        Mark Brown <broonie@...nel.org>,
        Felipe Balbi <balbi@...nel.org>,
        Alan Stern <stern@...land.harvard.edu>,
        Lee Jones <lee.jones@...aro.org>,
        Daniel Thompson <daniel.thompson@...aro.org>,
        Jingoo Han <jingoohan1@...il.com>,
        Helge Deller <deller@....de>,
        Linus Walleij <linus.walleij@...aro.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        USB list <linux-usb@...r.kernel.org>,
        dmaengine@...r.kernel.org,
        "open list:HID CORE LAYER" <linux-input@...r.kernel.org>,
        linux-mmc <linux-mmc@...r.kernel.org>,
        "open list:SERIAL DRIVERS" <linux-serial@...r.kernel.org>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        Linux Fbdev development list <linux-fbdev@...r.kernel.org>,
        ALSA Development Mailing List <alsa-devel@...a-project.org>
Subject: Re: [PATCH 26/41] ARM: omap1: relocate static I/O mapping

* Arnd Bergmann <arnd@...nel.org> [220420 19:18]:
> On Wed, Apr 20, 2022 at 3:46 PM Aaro Koskinen <aaro.koskinen@....fi> wrote:
> >
> > Hi,
> >
> > On Tue, Apr 19, 2022 at 03:37:08PM +0200, Arnd Bergmann wrote:
> > > From: Arnd Bergmann <arnd@...db.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.

Good to hear this got sorted out :)

Regards,

Tony