On 02/14/2014 10:13 AM, Michal Simek wrote:

quoted

quoted

That's not entirely truth. If you look at Microblaze then you will see
that Microblaze can be BE and LE.
There is just missing endian detection which we will add to the next version.

As far as I know the endianess of the kernel is fixed and known during
compile time. Correct me if I'm wrong. So there is no need for a runtime
detection of the endianess and so no need for {read,write}_reg function
pointers.

Endianess of the kernel is fixed and know during compile time
but what it is not fixed is endianess of that IP at compile time.

On fpga you can use bridges, partial reconfiguration, etc where
the only solution which is run-time endian detection via registers.

For example: drivers/block/xsysace.c, drivers/spi/spi-xilinx.c, etc

Okay, now I get it. You can make it more complex then it used to be :D

Marc

-- 
Pengutronix e.K.                  | Marc Kleine-Budde           |
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