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From: Alexander Shiyan <shc_work@mail.ru>
To: barebox@lists.infradead.org
Subject: [PATCH 08/11] ARM: mmu: Clear unpredictable bits for translation table
Date: Fri,  8 Feb 2013 14:02:20 +0400	[thread overview]
Message-ID: <1360317743-25975-8-git-send-email-shc_work@mail.ru> (raw)
In-Reply-To: <1360317743-25975-1-git-send-email-shc_work@mail.ru>


Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
---
 arch/arm/cpu/mmu.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/arch/arm/cpu/mmu.c b/arch/arm/cpu/mmu.c
index 73dd0d3..99f12b5 100644
--- a/arch/arm/cpu/mmu.c
+++ b/arch/arm/cpu/mmu.c
@@ -279,6 +279,9 @@ static int mmu_init(void)
 	if (get_cr() & CR_M) {
 		asm volatile ("mrc  p15,0,%0,c2,c0,0" : "=r"(ttb));
 
+		/* Clear unpredictable bits [13:0] */
+		ttb = (unsigned long *)((unsigned long)ttb & ~0x3fff);
+
 		if (!request_sdram_region("ttb", (unsigned long)ttb, SZ_16K))
 			pr_err("Error: Can't request SDRAM region for ttb\n");
 	} else {
-- 
1.7.3.4


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  parent reply	other threads:[~2013-02-08 10:03 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-02-08 10:02 [PATCH 01/11] ARM: clps711x: Move lowlevel initialization in common CLPS711X location Alexander Shiyan
2013-02-08 10:02 ` [PATCH 02/11] ARM: clps711x: Fix SDRAM setup comment Alexander Shiyan
2013-02-08 10:02 ` [PATCH 03/11] ARM: clps711x: Adds config option for CPU PLL multiplier Alexander Shiyan
2013-02-08 11:11   ` Jean-Christophe PLAGNIOL-VILLARD
2013-02-08 11:58     ` Re[2]: " Alexander Shiyan
2013-02-08 13:37       ` [SPAM] " Jean-Christophe PLAGNIOL-VILLARD
2013-02-08 10:02 ` [PATCH 04/11] ARM: clps711x: Decrease initial memory size to 8MB Alexander Shiyan
2013-02-08 10:02 ` [PATCH 05/11] ARM: clps711x: Remove unused "start" declaration from reset.c Alexander Shiyan
2013-02-08 10:02 ` [PATCH 06/11] ARM: clps711x: Mark private functions that not will be used outside as static Alexander Shiyan
2013-02-08 10:02 ` [PATCH 07/11] ARM: clep7212: Fix NULL pointer exception if MMU is enabled Alexander Shiyan
2013-02-08 10:02 ` Alexander Shiyan [this message]
2013-02-11  8:26   ` [PATCH 08/11] ARM: mmu: Clear unpredictable bits for translation table Sascha Hauer
2013-02-08 10:02 ` [PATCH 09/11] ARM: clps711x: Move memory initialization in common CLPS711X location Alexander Shiyan
2013-02-08 10:02 ` [PATCH 10/11] ARM: clps711x: Turn off all peripherals on startup Alexander Shiyan
2013-02-08 10:02 ` [PATCH 11/11] ARM: clps711x: Update defconfig Alexander Shiyan
2013-02-11  8:48 ` [PATCH 01/11] ARM: clps711x: Move lowlevel initialization in common CLPS711X location Sascha Hauer
2013-02-11  9:30   ` Re[2]: " Alexander Shiyan
2013-02-11  9:41     ` Sascha Hauer

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