On 01/29/2013 08:27 PM, Arnd Bergmann wrote:
On Tuesday 29 January 2013, Alexey Brodkin wrote:
in(out)_8/in(out)_be16/in(out)_le16 are very powerpc/microblaze
specific. To enable use of Xilinx System ACE driver build for other
architectures (for example it's possible to use it on Xilinx ml-509
board with ARC700 in FPGA) we need to use generic implementation of
accessors.
Current implementation was successfully built with Sourcery G++ Lite
2011.03-39 for Power EABI (ppc44x_defconfig).
Signed-off-by: Alexey Brodkin <abrod...@synopsys.com>
Is this driver used on powerpc64 as well, or just on microblaze
and/or 32 bit powerpc?
On 64 bit powerpc, ioread involves extra overhead because it
goes through the PCI error handling implementation, so we should
keep using in_le() there.
Arnd
Personally I have no idea about usage of the named device on powerpc64.
Wondering if anybody may comment on this?
My only intention was to make the driver portable.
Do you think if there's another generic alternative for originally used
accessors?
For example will it be better with "readb/readw/writeb/writew"?
-Alexey
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