A printf in the driver should be dev_* and contain useful information.
Both is not the case, remove it.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The driver didn't work well with at24 driver. NACKS are lost.
Errors are lost in isr due to the local variable err. Also we didn't wait for
bus free in omap_i2c_xfer_msg.
Fix issues and get other improvements from linux kernel
Tested on OMAP4 and AM335x
Signed-off-by: Jan Weitzel <j.weitzel@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
commit f64ed12b accidentally swap fclk_rate from am33xx and omap3.
Revert this change.
Signed-off-by: Jan Weitzel <j.weitzel@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch removes the call of the cpu_is_* functions completely
and uses id_tables instead.
Signed-off-by: Teresa Gámez <t.gamez@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Added device register functions and cpu_is_am33xx()
function.
Adapted the i2c-omap driver. AM335x has a lower
clock rate and the timeout of polling the isr function
had to be increased.
Based on a patch from Shravan Kumar <shravan.k@phytec.in>.
Signed-off-by: Teresa Gámez <t.gamez@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
cpu_is_omap2430() is set when CONFIG_ARCH_OMAP is enabled.
This fits for all OMAP/AM33xx boards supported in barebox.
Cleaned up all conditions that use the cpu_is_omap2430().
Also removed some unused defines.
Signed-off-by: Teresa Gámez <t.gamez@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
so we can show the this of i2c busses
set the bus device as parent of all devices.
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The FSF address has changed in the past. Instead of updating it
each time the address changes, just drop it completely treewide.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Added i2c support for omap4. Tested on pcm049.
Driver based on linux kernel implementation.
Also added a shift to access 16-bit registers
to make support for OMAP730/850 possible.
If accessing a non existing slave the bus will go into arbitration mode.
It's unable to recover from it.
Signed-off-by: Alexander Aring <a.aring@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
To allow for some generic io accessors introduce io.h and use
this instead of asm/io.h throughout the tree.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Sascha Hauer
Jan Weitzel
Teresa Gámez
Alexander Shiyan
Jean-Christophe PLAGNIOL-VILLARD
Alexander Aring