From 69f4f331a0f78470f0bc42ba8db8d6cdd9cae4a9 Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 2 Apr 2007 13:53:15 +0100 Subject: [PATCH] [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 --- arch/arm/kernel/ecard.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/kernel/ecard.c b/arch/arm/kernel/ecard.c index f1c0fb9741..6eb80acea3 100644 --- a/arch/arm/kernel/ecard.c +++ b/arch/arm/kernel/ecard.c @@ -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, -- 2.20.1