feat(nxp-mmc): add data buffer
The prepare callback is used to set buffer details for a transfer. The
actual transfer may not occur immediately. Therefore, the details are
saved and applied to the next data transfer command. This mechanism also
helps distinguish between single and multi-block transfers based on the
transfer size.
Change-Id: I7bcfde0521ad628e5950dfc71482191ac35433d1
Signed-off-by: Ghennadi Procopciuc <ghennadi.procopciuc@nxp.com>
diff --git a/drivers/imx/usdhc/imx_usdhc.h b/drivers/imx/usdhc/imx_usdhc.h
index 8d64dfc..3ef2474 100644
--- a/drivers/imx/usdhc/imx_usdhc.h
+++ b/drivers/imx/usdhc/imx_usdhc.h
@@ -23,6 +23,8 @@
/* iMX MMC registers definition */
#define DSADDR 0x000U
#define BLKATT 0x004U
+#define BLKATT_BLKCNT(x) (((x) << 16U) & GENMASK_32(31U, 16U))
+#define BLKATT_BLKSIZE(x) ((x) & GENMASK_32(12U, 0U))
#define CMDARG 0x008U
#define CMDRSP0 0x010U
#define CMDRSP1 0x014U