[microblaze-uclinux] I2C support

[John Williams <jwilliams@xxxxxxxxxxxxxx>]

Hi folks,

Last week I did some initial work (fiddling :) importing the Xilinx I2C 
core device driver from the PPC linux tree.  It's in CVS now, and lives 
in drivers/char/i2c/xilinx_iic.

It's tweaked to use the autoconfig stuff - just build the core into your 
microblaze hardware, add a generic driver in the MSS, and the resulting 
auto-config.in will have all the settings necessary to pick it up in the 
kernel build, you just have to enable the driver.

I did some fiddling to try to interface to the I2C RTC (Xicor 1228) chip 
on the new Insight p160 comms module - I found a driver for a 1226 and 
imported that as well.  I fiddled for a few hours but didn't quite get 
it going - maybe one day when if there's a real need for it.    Anyway, 
it's all there if anyone is interested and wants to have a play - 
patches welcome!

Cheers,

John
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