ARM: PXA3xx: program the CSMSADRCFG register
authorIgor Grinberg <grinberg@compulab.co.il>
Sun, 13 Jan 2013 11:49:47 +0000 (13:49 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 28 Feb 2013 14:59:04 +0000 (06:59 -0800)
commit76753d39bf46abf7e37df89e2258bef933bb2207
treefdaead7e4c9977dac8a2c975672edfc89ac0b534
parent03e578b9213094935c692d5728229cc8c0df0fd6
ARM: PXA3xx: program the CSMSADRCFG register

commit d107a204154ddd79339203c2deeb7433f0cf6777 upstream.

The Chip Select Configuration Register must be programmed to 0x2 in
order to achieve the correct behavior of the Static Memory Controller.

Without this patch devices wired to DFI and accessed through SMC cannot
be accessed after resume from S2.

Do not rely on the boot loader to program the CSMSADRCFG register by
programming it in the kernel smemc module.

Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/arm/mach-pxa/include/mach/smemc.h
arch/arm/mach-pxa/smemc.c