From: Sascha Hauer <s.hauer@pengutronix.de>
To: Alexander Shiyan <shc_work@mail.ru>
Cc: barebox@lists.infradead.org
Subject: Re: ARM bootm regression
Date: Wed, 21 Oct 2020 16:44:04 +0200 [thread overview]
Message-ID: <20201021144404.GJ26805@pengutronix.de> (raw)
In-Reply-To: <1602838156.455713761@f185.i.mail.ru>
On Fri, Oct 16, 2020 at 11:49:16AM +0300, Alexander Shiyan wrote:
> Hello.
>
> Found a regression in arm/lib32/bootm.c after a patch
> "ARM: bootm: make sure we place the kernel in free memory".
>
> The initial memory size for the board is set to 8 MB (before reading the real value from DT),
You could read the real value from DT earlier using libfdt, see
arch/arm/cpu/board-dt-2nd.c for usage examples. That doesn't solve it of
course when your board really has only 8MB memory.
> so the stack, malloc_space, etc. are placed in the initial 8M space.
> Then get_kernel_addresses() gets the real SDRAM area (for my board it is 64M),
> but decreases this size by the first children size (malloc_space),
> so mem_end is incorrect in this case.
Does an additional:
if (kaddr < mem_start)
kaddr = mem_start;
help?
Sascha
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next prev parent reply other threads:[~2020-10-21 14:44 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-16 8:49 Alexander Shiyan
2020-10-19 9:05 ` Sascha Hauer
2020-10-19 9:38 ` Alexander Shiyan
2020-10-21 14:44 ` Sascha Hauer [this message]
2020-10-22 6:13 ` Alexander Shiyan
2020-10-22 7:26 ` Sascha Hauer
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