From: santosh.shilimkar@ti.com (Santosh Shilimkar)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/6] omap3: pm: Fix the mmu on sequence in the asm code
Date: Mon, 21 Feb 2011 18:49:21 +0530 [thread overview]
Message-ID: <1298294365-30770-3-git-send-email-santosh.shilimkar@ti.com> (raw)
In-Reply-To: <1298294365-30770-1-git-send-email-santosh.shilimkar@ti.com>
Add necessary barriers after enabling MMU. Also use the sane way to
load pc and jump to it instead of executing ldma first up.
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Kevin Hilman <khilman@ti.com>
---
arch/arm/mach-omap2/sleep34xx.S | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/sleep34xx.S b/arch/arm/mach-omap2/sleep34xx.S
index db4cc57..4478379 100644
--- a/arch/arm/mach-omap2/sleep34xx.S
+++ b/arch/arm/mach-omap2/sleep34xx.S
@@ -591,12 +591,17 @@ usettbr0:
ldr r2, cache_pred_disable_mask
and r4, r2
mcr p15, 0, r4, c1, c0, 0
+ dsb
+ isb
+ ldr r0, =restoremmu_on
+ bx r0
/*
* ==============================
* == Exit point from OFF mode ==
* ==============================
*/
+restoremmu_on:
ldmfd sp!, {r0-r12, pc} @ restore regs and return
--
1.6.0.4
next prev parent reply other threads:[~2011-02-21 13:19 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-21 13:19 [PATCH 0/6] omap3: pm: Fixes for low power code Santosh Shilimkar
2011-02-21 13:19 ` [PATCH 1/6] omap3: pm: Use amrv7 supported instructions instead of legacy cp15 ones Santosh Shilimkar
2011-02-21 13:19 ` Santosh Shilimkar [this message]
2011-02-21 13:19 ` [PATCH 3/6] omap3: pm: Allow the cache clean when L1 is lost Santosh Shilimkar
2011-02-21 13:19 ` [PATCH 4/6] omap3: pm: Remove un-necessary cp15 registers form low power cpu context Santosh Shilimkar
2011-02-21 13:19 ` [PATCH 5/6] omap3: pm: Clear the SCTLR C bit in asm code to prevent data cache allocation Santosh Shilimkar
2011-02-21 13:19 ` [PATCH 6/6] omap3: pm: Use exported set_cr() instead of a custom one Santosh Shilimkar
2011-03-03 1:22 ` [PATCH 0/6] omap3: pm: Fixes for low power code Kevin Hilman
2011-03-04 6:54 ` Santosh Shilimkar
2011-03-08 11:41 ` Santosh Shilimkar
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