linux-kernel - [ 03/61] ARM i.MX imx21ads: Fix overlapping static i/o mappings

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Message-Id: <20120620173021.249009253@linuxfoundation.org>
Date:	Wed, 20 Jun 2012 10:30:23 -0700
From:	Greg KH <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk,
	Jaccon Bastiaansen <jaccon.bastiaansen@...il.com>,
	Sascha Hauer <s.hauer@...gutronix.de>
Subject: [ 03/61] ARM i.MX imx21ads: Fix overlapping static i/o mappings

3.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jaccon Bastiaansen <jaccon.bastiaansen@...il.com>

commit 350ab15bb2ffe7103bc6bf6c634f3c5b286eaf2a upstream.

The statically defined I/O memory regions for the i.MX21 on chip
peripherals and the on board I/O peripherals of the i.MX21ADS board
overlap. This results in a kernel crash during startup. This is fixed
by reducing the memory range for the on board I/O peripherals to the
actually required range.

Signed-off-by: Jaccon Bastiaansen <jaccon.bastiaansen@...il.com>
Signed-off-by: Sascha Hauer <s.hauer@...gutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/arm/mach-imx/mach-mx21ads.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/arm/mach-imx/mach-mx21ads.c
+++ b/arch/arm/mach-imx/mach-mx21ads.c
@@ -32,7 +32,7 @@
  * Memory-mapped I/O on MX21ADS base board
  */
 #define MX21ADS_MMIO_BASE_ADDR   0xf5000000
-#define MX21ADS_MMIO_SIZE        SZ_16M
+#define MX21ADS_MMIO_SIZE        0xc00000
 
 #define MX21ADS_REG_ADDR(offset)    (void __force __iomem *) \
 		(MX21ADS_MMIO_BASE_ADDR + (offset))


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