microblaze: Add support for DMA_BIDIRECTIONAL

CDMA requires DMA_BIDIRECTIONAL option.

Signed-off-by: Michal Simek <monstr@monstr.eu>

diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c
index 79c7465..393e6b2 100644 (file)
--- a/arch/microblaze/kernel/dma.c
+++ b/arch/microblaze/kernel/dma.c
@@ -26,6 +26,7 @@ static inline void __dma_sync_page(unsigned long paddr, unsigned long offset,
 {
        switch (direction) {
        case DMA_TO_DEVICE:
+       case DMA_BIDIRECTIONAL:
                flush_dcache_range(paddr + offset, paddr + offset + size);
                break;
        case DMA_FROM_DEVICE: