xilinx_spi: Switch to iomem functions and support little endian.

This patch changes the out_(be)(8|16|32) and in_(be)(8|16|32) calls to 32 bits ioread/iowrite.

The read and write function are attached to the internal struct as callbacks, callback
is selected depending on endianess.

This will also build on platforms not supporting the in/out calls for instance x86.

Acked-by: Grant Likely <grant.likely@secretlab.ca>
Tested-by: John Linn <John.Linn@xilinx.com>
Signed-off-by: Richard Röjfors <richard.rojfors@mocean-labs.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index f34a2d16d18f..b528271c72ef 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -244,7 +244,7 @@ config SPI_TXX9
 
 config SPI_XILINX
         tristate "Xilinx SPI controller"
-        depends on EXPERIMENTAL
+        depends on HAS_IOMEM && EXPERIMENTAL
         select SPI_BITBANG
         select SPI_XILINX_OF if (XILINX_VIRTEX || MICROBLAZE)
         help