diff mbox series

[v2,05/10] mmc: host: Always use manual-cmd23 in SDUC

Message ID 20240807060309.2403023-6-avri.altman@wdc.com (mailing list archive)
State New
Headers show
Series Add SDUC Support | expand

Commit Message

Avri Altman Aug. 7, 2024, 6:03 a.m. UTC 
In Multi-Block read/write, CMD23 must precede CMD22.  Therefore always
use manual cmd23 so that we'll be able to control the sequence of
commands.  Also, add an applicable mmc_command member for both
mmc_blk_request and mmc_request to accommodate the address extension
command.

Signed-off-by: Avri Altman <avri.altman@wdc.com>
---
 drivers/mmc/core/queue.h | 1 +
 drivers/mmc/host/sdhci.c | 4 ++--
 include/linux/mmc/core.h | 1 +
 3 files changed, 4 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/mmc/core/queue.h b/drivers/mmc/core/queue.h
index 9ade3bcbb714..d903fd8a45b5 100644
--- a/drivers/mmc/core/queue.h
+++ b/drivers/mmc/core/queue.h
@@ -40,6 +40,7 @@  struct mmc_blk_ioc_data;
 struct mmc_blk_request {
 	struct mmc_request	mrq;
 	struct mmc_command	sbc;
+	struct mmc_command	ext;
 	struct mmc_command	cmd;
 	struct mmc_command	stop;
 	struct mmc_data		data;
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 4b91c9e96635..f62b489c9e9c 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1399,13 +1399,13 @@  static inline bool sdhci_auto_cmd12(struct sdhci_host *host,
 static inline bool sdhci_auto_cmd23(struct sdhci_host *host,
 				    struct mmc_request *mrq)
 {
-	return mrq->sbc && (host->flags & SDHCI_AUTO_CMD23);
+	return mrq->sbc && (host->flags & SDHCI_AUTO_CMD23) && !mrq->ext;
 }
 
 static inline bool sdhci_manual_cmd23(struct sdhci_host *host,
 				      struct mmc_request *mrq)
 {
-	return mrq->sbc && !(host->flags & SDHCI_AUTO_CMD23);
+	return mrq->sbc && (mrq->ext || !(host->flags & SDHCI_AUTO_CMD23));
 }
 
 static inline void sdhci_auto_cmd_select(struct sdhci_host *host,
diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h
index 2c7928a50907..5560e70cb8d4 100644
--- a/include/linux/mmc/core.h
+++ b/include/linux/mmc/core.h
@@ -142,6 +142,7 @@  struct mmc_data {
 struct mmc_host;
 struct mmc_request {
 	struct mmc_command	*sbc;		/* SET_BLOCK_COUNT for multiblock */
+	struct mmc_command	*ext;		/* SD_ADDR_EXT for SDUC */
 	struct mmc_command	*cmd;
 	struct mmc_data		*data;
 	struct mmc_command	*stop;