This adds a function to send a MMC_CMD_SET_BLOCK_COUNT command. This
is not yet needed by barebox as we use open end multiblock transfers,
but will be needed by upcoming RPMB support.
Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
drivers/mci/mci-core.c | 9 +++++++++
include/mci.h | 5 +++++
2 files changed, 14 insertions(+)
diff --git a/drivers/mci/mci-core.c b/drivers/mci/mci-core.c
index 27a10df9ce..6d8140f7b0 100644
--- a/drivers/mci/mci-core.c
+++ b/drivers/mci/mci-core.c
@@ -311,6 +311,15 @@ static int mci_block_erase(struct mci *card, unsigned int from,
return -EIO;
}
+int mci_set_blockcount(struct mci *mci, unsigned int cmdarg)
+{
+ struct mci_cmd cmd = {};
+
+ mci_setup_cmd(&cmd, MMC_CMD_SET_BLOCK_COUNT, cmdarg, MMC_RSP_R1);
+
+ return mci_send_cmd(mci, &cmd, NULL);
+}
+
static int mci_do_block_op(struct mci *mci, const void *src, void *dst, int blocknum,
int blocks)
{
diff --git a/include/mci.h b/include/mci.h
index f0db1f9ea0..c6ee6ea50f 100644
--- a/include/mci.h
+++ b/include/mci.h
@@ -87,12 +87,16 @@
#define MMC_CMD_READ_MULTIPLE_BLOCK 18
#define MMC_SEND_TUNING_BLOCK 19 /* adtc R1 */
#define MMC_SEND_TUNING_BLOCK_HS200 21 /* adtc R1 */
+#define MMC_CMD_SET_BLOCK_COUNT 23
#define MMC_CMD_WRITE_SINGLE_BLOCK 24
#define MMC_CMD_WRITE_MULTIPLE_BLOCK 25
#define MMC_CMD_APP_CMD 55
#define MMC_CMD_SPI_READ_OCR 58
#define MMC_CMD_SPI_CRC_ON_OFF 59
+#define MMC_CMD23_ARG_BLOCKS GENMASK(15, 0)
+#define MMC_CMD23_ARG_REL_WR BIT(31)
+
/* class 5 */
#define MMC_ERASE_GROUP_START 35 /* ac [31:0] data addr R1 */
#define MMC_ERASE_GROUP_END 36 /* ac [31:0] data addr R1 */
@@ -724,6 +728,7 @@ int mmc_hs200_tuning(struct mci *mci);
int mci_execute_tuning(struct mci *mci);
int mci_send_abort_tuning(struct mci *mci, u32 opcode);
int mmc_select_timing(struct mci *mci);
+int mci_set_blockcount(struct mci *mci, unsigned int cmdarg);
static inline bool mmc_card_hs200(struct mci *mci)
{
--
2.39.5
