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drivers/mmcsd/mmcsd_sdio.c: Align DMA buffer for MBURST size.

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David S. Alessio 2019-10-31 07:17:41 -06:00 committed by Gregory Nutt
parent 43a3a0f400
commit 29612c40c5
1 changed files with 3 additions and 1 deletions
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4
drivers/mmcsd/mmcsd_sdio.c
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@ -2750,12 +2750,14 @@ static int mmcsd_mmcinitialize(FAR struct mmcsd_state_s *priv)
* the correct number of blocks and capacity. Returns OK if ext CSD is read * the correct number of blocks and capacity. Returns OK if ext CSD is read
* correctly or error in not. * correctly or error in not.
* *
* Note: buffer[] alignment must correspond with MBURST size
*
****************************************************************************/ ****************************************************************************/
static int mmcsd_mmcreadextCSD (FAR struct mmcsd_state_s *priv) static int mmcsd_mmcreadextCSD (FAR struct mmcsd_state_s *priv)
{ {
int ret; int ret;
uint8_t buffer[512]; uint8_t buffer[512] __attribute__ ((aligned(16)));
DEBUGASSERT(priv != NULL); DEBUGASSERT(priv != NULL);