Export function mmc_send_ext_csd() for reading the extended CSD register.
Signed-off-by: Heinrich Schuchardt <xypron.g...@gmx.de>
---
drivers/mmc/mmc.c | 2 +-
include/mmc.h | 11 +++++++++++
2 files changed, 12 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 3e36566693..bfcdaa665d 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -718,7 +718,7 @@ static int mmc_complete_op_cond(struct mmc *mmc)
}
-static int mmc_send_ext_csd(struct mmc *mmc, u8 *ext_csd)
+int mmc_send_ext_csd(struct mmc *mmc, u8 *ext_csd)
{
struct mmc_cmd cmd;
struct mmc_data data;
diff --git a/include/mmc.h b/include/mmc.h
index 4ecd6c744c..85fc3497a1 100644
--- a/include/mmc.h
+++ b/include/mmc.h
@@ -896,6 +896,17 @@ int mmc_get_env_dev(void);
*/
struct blk_desc *mmc_get_blk_desc(struct mmc *mmc);
+/**
+ * mmc_send_ext_csd() - read the extended CSD register
+ *
+ * @mmc: MMC device
+ * @ext_csd a cache aligned buffer of length MMC_MAX_BLOCK_LEN allocated by
+ * the caller, e.g. using
+ * ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, MMC_MAX_BLOCK_LEN)
+ * Return: 0 for success
+ */
+int mmc_send_ext_csd(struct mmc *mmc, u8 *ext_csd);
+
static inline enum dma_data_direction mmc_get_dma_dir(struct mmc_data *data)
{
return data->flags & MMC_DATA_WRITE ? DMA_TO_DEVICE : DMA_FROM_DEVICE;
--
2.25.1
