The global 'tmpbuf' variable in part_iso triggers invalid cache alignment warnings when not being aligned to ARCH_DMA_MINALIGN:
ERROR: v7_outer_cache_inval_range - start address is not aligned - 0x4ffbb6ac ERROR: v7_outer_cache_inval_range - stop address is not aligned - 0x4ffbbeac
The quick fix here is to align the global 'tmpbuf' variable using DEFINE_CACHE_ALIGN_BUFFER. A real fix would be to change part_iso.c to use function local buffers defined with ALLOC_CACHE_ALIGN_BUFFER.
Signed-off-by: Martin Hundebøll mnhu@prevas.dk --- disk/part_iso.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/disk/part_iso.c b/disk/part_iso.c index bb8ed658f2..970a27bf67 100644 --- a/disk/part_iso.c +++ b/disk/part_iso.c @@ -8,6 +8,7 @@ #include <common.h> #include <command.h> #include <asm/unaligned.h> +#include <memalign.h> #include "part_iso.h"
#ifdef HAVE_BLOCK_DEVICE @@ -24,7 +25,7 @@ #undef CHECK_FOR_POWERPC_PLATTFORM #define CD_SECTSIZE 2048
-static unsigned char tmpbuf[CD_SECTSIZE]; +DEFINE_CACHE_ALIGN_BUFFER(unsigned char, tmpbuf, CD_SECTSIZE);
unsigned long iso_dread(struct blk_desc *block_dev, lbaint_t start, lbaint_t blkcnt, void *buffer)