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authorWolfram Sang <w.sang@pengutronix.de>2011-08-31 22:35:40 +0400
committerWolfram Sang <w.sang@pengutronix.de>2012-04-21 01:27:08 +0400
commit4ccf4beab8c447f8cd33d46afb6e10e1aa3befc6 (patch)
tree2291a9cb2b1fa2bbb94bbcb9df3c9cf8588fc176 /lib/Kconfig
parente816b57a337ea3b755de72bec38c10c864f23015 (diff)
downloadlinux-4ccf4beab8c447f8cd33d46afb6e10e1aa3befc6.tar.xz
lib: add support for stmp-style devices
MX23/28 use IP cores which follow a register layout I have first seen on STMP3xxx SoCs. In this layout, every register actually has four u32: 1.) to store a value directly 2.) a SET register where every 1-bit sets the corresponding bit, others are unaffected 3.) same with a CLR register 4.) same with a TOG (toggle) register Also, the 2 MSBs in register 0 are always the same and can be used to reset the IP core. All this is strictly speaking not mach-specific (but IP core specific) and, thus, doesn't need to be in mach-mxs/include. At least mx6 also uses IP cores following this stmp-style. So: Introduce a stmp-style device, put the code and defines for that in a public place (lib/), and let drivers for stmp-style devices select that code. To avoid regressions and ease reviewing, the actual code is simply copied from mach-mxs. It definately wants updates, but those need a seperate patch series. Voila, mach dependency gone, reusable code introduced. Note that I didn't remove the duplicated code from mach-mxs yet, first the drivers have to be converted. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Dong Aisheng <dong.aisheng@linaro.org>
Diffstat (limited to 'lib/Kconfig')
-rw-r--r--lib/Kconfig3
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/Kconfig b/lib/Kconfig
index 4a8aba2e5cc0..c5da1548b964 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -33,6 +33,9 @@ config GENERIC_IO
boolean
default n
+config STMP_DEVICE
+ bool
+
config CRC_CCITT
tristate "CRC-CCITT functions"
help