From: Matt Fleming <matt@console-pimps.org>
To: linux-sh@vger.kernel.org
Subject: [PATCH 0/3] Fixed ioremap
Date: Sat, 07 Nov 2009 10:55:54 +0000 [thread overview]
Message-ID: <cover.1257590789.git.matt@console-pimps.org> (raw)
Hi,
this patch series provides and uses a new early ioremap implementation
using fixmaps. ioremap_fixed() is useful when you need to map some
physical address range really early in boot. See PATCH 2/3 for an
example. It's based on x86's early_ioremap().
Paul, as I don't have an sh64 compiler or board I've been unable to test
PATCH 3/3. If you (or anyone else) could give it a go, that'd be
great. Also, it's possible that some of the MMU code that is in
iroemap_fixed.c is SH4/SH4-A specific. I've done the best I could from
code inspection to make sure that it would work on non-SH4 boards, but I
could have missed something, and some SH4 quirks may have slipped in.
Matt Fleming (3):
sh: Add fixed ioremap support
sh: Use ioremap_fixmed to map the SM501 DRAM config register
sh: Use ioremap_fixed() to implement SH-5 ioremap()
arch/sh/boards/board-sh7785lcr.c | 11 ++-
arch/sh/include/asm/fixmap.h | 8 +
arch/sh/include/asm/io.h | 4 +
arch/sh/kernel/setup.c | 2 +
arch/sh/mm/Makefile | 3 +-
arch/sh/mm/ioremap_64.c | 290 +-------------------------------------
arch/sh/mm/ioremap_fixed.c | 209 +++++++++++++++++++++++++++
7 files changed, 238 insertions(+), 289 deletions(-)
create mode 100644 arch/sh/mm/ioremap_fixed.c
reply other threads:[~2009-11-07 10:55 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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=cover.1257590789.git.matt@console-pimps.org \
--to=matt@console-pimps.org \
--cc=linux-sh@vger.kernel.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.