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authorRavi Babu <ravibabu@ti.com>2015-08-17 13:29:48 +0530
committerJagan Teki <jteki@openedev.com>2015-08-17 23:29:14 +0530
commit156e96f0382a09e3b67681566319ec945f192eb9 (patch)
tree988befa0534412ca17cde3bbeee17cf963130c48
parenta39cfe717c4152ececea5c4ce0aa2e97faa263ab (diff)
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sf: allocate cache aligned buffers to copy from flash
Use memalign() with ARCH_DMA_MINALIGN to allocate read buffers. This is required because, flash drivers may use DMA for read operations and may have to invalidate the buffer before read. Signed-off-by: Ravi Babu <ravibabu@ti.com> Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Jagan Teki <jteki@openedev.com> Tested-by: Jagan Teki <jteki@openedev.com>
-rw-r--r--common/cmd_sf.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/common/cmd_sf.c b/common/cmd_sf.c
index 3746e0d..ac7f5df 100644
--- a/common/cmd_sf.c
+++ b/common/cmd_sf.c
@@ -223,7 +223,7 @@ static int spi_flash_update(struct spi_flash *flash, u32 offset,
if (end - buf >= 200)
scale = (end - buf) / 100;
- cmp_buf = malloc(flash->sector_size);
+ cmp_buf = memalign(ARCH_DMA_MINALIGN, flash->sector_size);
if (cmp_buf) {
ulong last_update = get_timer(0);
@@ -484,12 +484,12 @@ static int do_spi_flash_test(int argc, char * const argv[])
if (*argv[2] == 0 || *endp != 0)
return -1;
- vbuf = malloc(len);
+ vbuf = memalign(ARCH_DMA_MINALIGN, len);
if (!vbuf) {
printf("Cannot allocate memory (%lu bytes)\n", len);
return 1;
}
- buf = malloc(len);
+ buf = memalign(ARCH_DMA_MINALIGN, len);
if (!buf) {
free(vbuf);
printf("Cannot allocate memory (%lu bytes)\n", len);