i2c: Add support for I2C bus on Freescale CPM1/CPM2 controllers

This driver uses the port of 2.4 code from Vitaly Bordug
<vitb@kernel.crashing.org> and the actual algorithm used by the i2c
driver of the DBox code on cvs.tuxboc.org from Felix Domke
(tmbinc@gmx.net) and Gillem (htoa@gmx.net) converted to an
of_platform_driver. Tested on CPM1 (MPC823 on dbox2 hardware) and
CPM2 (MPC8272).

Signed-off-by: Jochen Friedrich <jochen@scram.de>
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 56b6f29c9a3c..6ee997b2817c 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -299,6 +299,16 @@ config I2C_BLACKFIN_TWI_CLK_KHZ
         help
           The unit of the TWI clock is kHz.
 
+config I2C_CPM
+        tristate "Freescale CPM1 or CPM2 (MPC8xx/826x)"
+        depends on (CPM1 || CPM2) && OF_I2C
+        help
+          This supports the use of the I2C interface on Freescale
+          processors with CPM1 or CPM2.
+
+          This driver can also be built as a module.  If so, the module
+          will be called i2c-cpm.
+
 config I2C_DAVINCI
         tristate "DaVinci I2C driver"
         depends on ARCH_DAVINCI