Commit 69f4f331 authored Apr 02, 2007 by Russell King Committed by Russell King May 03, 2007

[ARM] Set coherent DMA mask for Acorn expansion cards



Although expansion cards can't do bus-master DMA, subsystems
want to be able to use coherent memory for DMA purposes to
these cards.  Therefore, set the coherent DMA mask to allow
such memory to be allocated.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

parent 235b185c

arch/arm/kernel/ecard.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -825,6 +825,7 @@ static struct expansion_card *__init ecard_alloc_card(int type, int slot)
		ec->dev.bus = &ecard_bus_type;
		ec->dev.dma_mask = &ec->dma_mask;
		ec->dma_mask = (u64)0xffffffff;
		ec->dev.coherent_dma_mask = ec->dma_mask;

		if (slot < 4) {
		ec_set_resource(ec, ECARD_RES_MEMC,