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99c7d4ccf9
Add dma-coherent option for etr1 on kalama to fix dma_sync_for_single_cpu() issue, which cause by a upstream change "Speed up for bounce buffer in flat mode". this change uses “dma_alloc_noncoherent + cache sync” to replace dma_alloc_coherent, These APIs only work with contiguous memory. since etr support iommu, etr buffer physical address is not contiguous. Change-Id: Idd7550151ea45576f3af2add0b930caa62a933de