From b572595ee95829ab62e354c55a8fbd0f4db23935 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Sun, 29 Jul 2012 20:53:25 +0000 Subject: nand: Try to align the default buffers The NAND layer needs to use cache-aligned buffers by default. Towards this goal. align the default buffers and their members according to the minimum DMA alignment defined for the architecture. Signed-off-by: Simon Glass Signed-off-by: Tom Warren Acked-by: Scott Wood --- drivers/mtd/nand/nand_base.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index bfd668fa0a..891af1f2ea 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2936,7 +2936,8 @@ int nand_scan_tail(struct mtd_info *mtd) struct nand_chip *chip = mtd->priv; if (!(chip->options & NAND_OWN_BUFFERS)) - chip->buffers = kmalloc(sizeof(*chip->buffers), GFP_KERNEL); + chip->buffers = memalign(ARCH_DMA_MINALIGN, + sizeof(*chip->buffers)); if (!chip->buffers) return -ENOMEM; -- cgit v1.2.1