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From: Dmitry Osipenko <digetx@gmail.com>
To: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: "Arnd Bergmann" <arnd@arndb.de>,
	"Nicolas Pitre" <nico@fluxnic.net>,
	"Russell King" <linux@armlinux.org.uk>,
	Linux-Renesas <linux-renesas-soc@vger.kernel.org>,
	"Chris Brandt" <chris.brandt@renesas.com>,
	"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
	"linux-tegra@vger.kernel.org" <linux-tegra@vger.kernel.org>,
	"Eric Miao" <eric.miao@nvidia.com>,
	"Linux ARM" <linux-arm-kernel@lists.infradead.org>,
	"Marek Szyprowski" <m.szyprowski@samsung.com>
Subject: Re: [PATCH v2] ARM: boot: Obtain start of physical memory from DTB
Date: Fri, 20 Mar 2020 16:27:07 +0300	[thread overview]
Message-ID: <0c70b161-64e8-7765-cc4f-112c2cec9a29@gmail.com> (raw)
In-Reply-To: <CAMuHMdX9PH+WUvONz2C8D1fRrZXn5rEND-p_my2mYvoyxF_gWA@mail.gmail.com>

20.03.2020 12:18, Geert Uytterhoeven пишет:
...
> Thanks for the info!
> 
>> I recalled that CONFIG_THUMB2_KERNEL=y is set in my kernel's config and
>> disabling thumb2 build fixes the problem. Please correct it in the next
>> version of the patch, thanks in advance.
> 
> Interesting.  I enabled CONFIG_THUMB2_KERNEL=y, and it doesn't make
> a difference for the few board combos I've tried (with/without appended DTB).
> So it must be related to ATAGS.  Will dive deeper...
> 
> P.S. I never realized CONFIG_THUMB2_KERNEL=y had such a big size
> impact: my kernel shrunk by ca. 1 MiB.

A quick observation tells that fdt_get_mem_start() returns a wrong
address with CONFIG_THUMB2_KERNEL=y, I haven't tried to look further yet.

Disabling all ATAGS options in kernel's config doesn't help.

Kernel config:
https://gist.github.com/digetx/b7c4e1d2d4dae0c5566748c0d7f1e884

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  reply	other threads:[~2020-03-20 13:27 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20200225112354eucas1p1300749b32c6809b6a22194c1a952a68c@eucas1p1.samsung.com>
2020-01-27 14:07 ` [PATCH v2] ARM: boot: Obtain start of physical memory from DTB Geert Uytterhoeven
2020-01-27 14:36   ` Nicolas Pitre
2020-02-25 11:23   ` Marek Szyprowski
2020-02-25 11:40     ` Geert Uytterhoeven
2020-03-19  1:11       ` Dmitry Osipenko
2020-03-19  8:18         ` Geert Uytterhoeven
2020-03-19 14:35           ` Dmitry Osipenko
2020-03-20  9:18             ` Geert Uytterhoeven
2020-03-20 13:27               ` Dmitry Osipenko [this message]
2020-03-20 13:43               ` Geert Uytterhoeven
2020-03-20 13:47                 ` Dmitry Osipenko
2020-03-19  9:25         ` Russell King - ARM Linux admin
2020-03-19 14:35           ` Dmitry Osipenko

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