From: Geert Uytterhoeven <geert@linux-m68k.org>
To: linux-m68k@vger.kernel.org
Cc: Andreas Schwab <schwab@linux-m68k.org>,
linux-kernel@vger.kernel.org,
Geert Uytterhoeven <geert@linux-m68k.org>
Subject: [PATCH] m68k: Fix boot regression on machines with RAM at non-zero
Date: Tue, 8 Jul 2014 09:25:58 +0200 [thread overview]
Message-ID: <1404804358-30299-1-git-send-email-geert@linux-m68k.org> (raw)
My enhancement to store the initial mapping size for later reuse in commit
486df8bc4627bdfc032d11bedcd056cc5343ee62 ("m68k: Increase initial mapping
to 8 or 16 MiB if possible") broke booting on machines where RAM doesn't
start at address zero.
Use pc-relative addressing to fix this.
Reported-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Andreas Schwab <schwab@linux-m68k.org>
---
arch/m68k/kernel/head.S | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/m68k/kernel/head.S b/arch/m68k/kernel/head.S
index dbb118e1a4e0..a54788458ca3 100644
--- a/arch/m68k/kernel/head.S
+++ b/arch/m68k/kernel/head.S
@@ -921,7 +921,8 @@ L(nocon):
jls 1f
lsrl #1,%d1
1:
- movel %d1,m68k_init_mapped_size
+ lea %pc@(m68k_init_mapped_size),%a0
+ movel %d1,%a0@
mmu_map #PAGE_OFFSET,%pc@(L(phys_kernel_start)),%d1,\
%pc@(m68k_supervisor_cachemode)
--
1.9.1
reply other threads:[~2014-07-08 7:26 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=1404804358-30299-1-git-send-email-geert@linux-m68k.org \
--to=geert@linux-m68k.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-m68k@vger.kernel.org \
--cc=schwab@linux-m68k.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®