From: Stefan Agner <stefan.ag...@toradex.com>
When using ISO partitions with a DMA enabled block device driver
reading the ISO partition leads to unaligned DMA operations:
CACHE: Misaligned operation at range [bffb7da8, bffb85a8]
Align the buffer to make sure we pass a buffer which works for
DMA operations.
Signed-off-by: Stefan Agner <stefan.ag...@toradex.com>
---
disk/part_iso.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/disk/part_iso.c b/disk/part_iso.c
index bb8ed658f2..8aef251f4e 100644
--- a/disk/part_iso.c
+++ b/disk/part_iso.c
@@ -24,7 +24,7 @@
#undef CHECK_FOR_POWERPC_PLATTFORM
#define CD_SECTSIZE 2048
-static unsigned char tmpbuf[CD_SECTSIZE];
+static unsigned char tmpbuf[CD_SECTSIZE] __aligned(ARCH_DMA_MINALIGN);
unsigned long iso_dread(struct blk_desc *block_dev, lbaint_t start,
lbaint_t blkcnt, void *buffer)
--
2.14.1
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