This is a note to let you know that I've just added the patch titled
ARM: OMAP2+: GPMC: fix device size setup
to the 3.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
arm-omap2-gpmc-fix-device-size-setup.patch
and it can be found in the queue-3.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 8ef5d844cc3a644ea6f7665932a4307e9fad01fa Mon Sep 17 00:00:00 2001
From: Yegor Yefremov <[email protected]>
Date: Mon, 23 Jan 2012 08:32:23 +0100
Subject: ARM: OMAP2+: GPMC: fix device size setup
From: Yegor Yefremov <[email protected]>
commit 8ef5d844cc3a644ea6f7665932a4307e9fad01fa upstream.
following statement can only change device size from 8-bit(0) to 16-bit(1),
but not vice versa:
regval |= GPMC_CONFIG1_DEVICESIZE(wval);
so as this field has 1 reserved bit, that could be used in future,
just clear both bits and then OR with the desired value
Signed-off-by: Yegor Yefremov <[email protected]>
Signed-off-by: Tony Lindgren <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/arm/mach-omap2/gpmc.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/arch/arm/mach-omap2/gpmc.c
+++ b/arch/arm/mach-omap2/gpmc.c
@@ -528,7 +528,13 @@ int gpmc_cs_configure(int cs, int cmd, i
case GPMC_CONFIG_DEV_SIZE:
regval = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
+
+ /* clear 2 target bits */
+ regval &= ~GPMC_CONFIG1_DEVICESIZE(3);
+
+ /* set the proper value */
regval |= GPMC_CONFIG1_DEVICESIZE(wval);
+
gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, regval);
break;
Patches currently in stable-queue which might be from
[email protected] are
queue-3.0/arm-omap2-gpmc-fix-device-size-setup.patch
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