This function can be used to send ext_csd data towards the chip, which is
needed in the (upcoming) firmware update patch.
Signed-off-by: Holger Schurig <holgerschurig@xxxxxxxxx>
---
drivers/mmc/core/mmc_ops.c | 4 ++--
include/linux/mmc/core.h | 3 +++
2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c
index 1f44426..d1d6abc 100644
--- a/drivers/mmc/core/mmc_ops.c
+++ b/drivers/mmc/core/mmc_ops.c
@@ -287,8 +287,7 @@ mmc_send_cxd_native(struct mmc_host *host, u32 arg, u32 *cxd, int opcode)
* NOTE: void *buf, caller for the buf is required to use DMA-capable
* buffer or on-stack buffer (with some overhead in callee).
*/
-static int
-mmc_send_cxd_data(struct mmc_card *card, struct mmc_host *host,
+int mmc_send_cxd_data(struct mmc_card *card, struct mmc_host *host,
u32 opcode, void *buf, unsigned len)
{
struct mmc_request mrq = {NULL};
@@ -336,6 +335,7 @@ mmc_send_cxd_data(struct mmc_card *card, struct mmc_host *host,
return 0;
}
+EXPORT_SYMBOL(mmc_send_cxd_data);
int mmc_send_csd(struct mmc_card *card, u32 *csd)
{
diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h
index 774846f..b0e0f15 100644
--- a/include/linux/mmc/core.h
+++ b/include/linux/mmc/core.h
@@ -162,6 +162,9 @@ extern void mmc_start_bkops(struct mmc_card *card, bool from_exception);
extern int mmc_switch(struct mmc_card *, u8, u8, u8, unsigned int);
extern int mmc_send_tuning(struct mmc_host *host, u32 opcode, int *cmd_error);
extern int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd);
+extern int mmc_send_cxd_data(struct mmc_card *card, struct mmc_host *host,
+ u32 opcode, void *buf, unsigned len);
+
#define MMC_ERASE_ARG 0x00000000
#define MMC_SECURE_ERASE_ARG 0x80000000
--
2.1.4
--
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