From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: add support for uncompressed uImage kernel
Date: Thu, 18 Nov 2010 09:10:46 +0000 [thread overview]
Message-ID: <20101118091046.GA16907@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <201011180838.26679.alexander.stein@systec-electronic.com>
On Thu, Nov 18, 2010 at 08:38:26AM +0100, Alexander Stein wrote:
> We only have experience with GZIP. Our compressed kernel is ~1,8MB and
> uncompressed ~4MB.
> On an AT91 ARM9 SoC the decompression takes about 1-2s of time. Caches should
> be disabled, as far as I could see in decompression code.
Are you sure? ARM9 is supposed to be ARMv4T, which is covered by this
entry in the proc_types table:
.word 0x00020000 @ ARMv4T
.word 0x000f0000
W(b) __armv4_mmu_cache_on
W(b) __armv4_mmu_cache_off
W(b) __armv4_mmu_cache_flush
So caches _should_ be enabled.
next prev parent reply other threads:[~2010-11-18 9:10 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-09 13:50 [PATCH] ARM: add support for uncompressed uImage kernel Alexander Stein
2010-11-09 14:04 ` Russell King - ARM Linux
2010-11-09 14:51 ` Uwe Kleine-König
2010-11-09 22:38 ` Sascha Hauer
2010-11-13 10:47 ` Albin Tonnerre
2010-11-18 7:38 ` Alexander Stein
2010-11-18 8:15 ` Uwe Kleine-König
2010-11-18 9:10 ` Russell King - ARM Linux [this message]
2010-11-18 10:18 ` Alexander Stein
2010-11-09 14:57 ` Uwe Kleine-König
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20101118091046.GA16907@n2100.arm.linux.org.uk \
--to=linux@arm.linux.org.uk \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.