From: Joel Fernandes <joelf@ti.com>
To: Tony Lindgren <tony@atomide.com>
Cc: Joel Fernandes <joelf@ti.com>, Dave Martin <Dave.Martin@arm.com>,
Santosh Shilimkar <santosh.shilimkar@ti.com>,
Russell King <linux@arm.linux.org.uk>, Nishanth Menon <nm@ti.com>,
"open list:OMAP SUPPORT" <linux-omap@vger.kernel.org>,
"moderated list:ARM SUB-ARCHITECT..."
<linux-arm-kernel@lists.infradead.org>,
open list <linux-kernel@vger.kernel.org>
Subject: [PATCH] ARM: OMAP5: Redo THUMB mode switch on secondary CPU
Date: Tue, 29 Apr 2014 21:53:47 -0500 [thread overview]
Message-ID: <1398826427-17200-1-git-send-email-joelf@ti.com> (raw)
Here's a redo of the patch [1] that effectively does the same
thing but is the right way to do things by using ENDPROC instead.
The firmware correctly switches to THUMB before entry.
The patch applies ontop of the earlier patch [1].
[1] https://lkml.org/lkml/2014/4/22/1044
Suggested-by: Dave Martin <Dave.Martin@arm.com>
Cc: Dave Martin <Dave.Martin@arm.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Nishanth Menon <nm@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Joel Fernandes <joelf@ti.com>
---
Tony, the earlier patch went into your fixes, and can remain. This patch is just a simple redo of the same and can go in for v3.16, no problem. Thanks.
arch/arm/mach-omap2/omap-headsmp.S | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/arch/arm/mach-omap2/omap-headsmp.S b/arch/arm/mach-omap2/omap-headsmp.S
index 1809dce..bf36f26 100644
--- a/arch/arm/mach-omap2/omap-headsmp.S
+++ b/arch/arm/mach-omap2/omap-headsmp.S
@@ -31,10 +31,6 @@
* register AuxCoreBoot0.
*/
ENTRY(omap5_secondary_startup)
-.arm
-THUMB( adr r9, BSYM(wait) ) @ CPU may be entered in ARM mode.
-THUMB( bx r9 ) @ If this is a Thumb-2 kernel,
-THUMB( .thumb ) @ switch to Thumb now.
wait: ldr r2, =AUX_CORE_BOOT0_PA @ read from AuxCoreBoot0
ldr r0, [r2]
mov r0, r0, lsr #5
@@ -43,7 +39,7 @@ wait: ldr r2, =AUX_CORE_BOOT0_PA @ read from AuxCoreBoot0
cmp r0, r4
bne wait
b secondary_startup
-END(omap5_secondary_startup)
+ENDPROC(omap5_secondary_startup)
/*
* OMAP4 specific entry point for secondary CPU to jump from ROM
* code. This routine also provides a holding flag into which
--
1.7.9.5
next reply other threads:[~2014-04-30 2:54 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-30 2:53 Joel Fernandes [this message]
2014-04-30 9:43 ` [PATCH] ARM: OMAP5: Redo THUMB mode switch on secondary CPU Dave Martin
2014-05-06 0:32 ` Tony Lindgren
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=1398826427-17200-1-git-send-email-joelf@ti.com \
--to=joelf@ti.com \
--cc=Dave.Martin@arm.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-omap@vger.kernel.org \
--cc=linux@arm.linux.org.uk \
--cc=nm@ti.com \
--cc=santosh.shilimkar@ti.com \
--cc=tony@atomide.com \
/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