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[v2,3/3] mmc: cavium: Add ACMD23 support for dma's multiple mode

Message ID 1509500233-133821-3-git-send-email-shawn.lin@rock-chips.com (mailing list archive)
State New, archived
Headers show

Commit Message

Shawn Lin Nov. 1, 2017, 1:37 a.m. UTC 
Still need prepare for dma's multiple mode if it's a preceding
ACMD23 since it indicates a multiple block write is coming.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Tested-by: Jan Glauber <jglauber@cavium.com>
---

Changes in v2: None

 drivers/mmc/host/cavium.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
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Patch

diff --git a/drivers/mmc/host/cavium.c b/drivers/mmc/host/cavium.c
index fbd29f0..56bf0e0 100644
--- a/drivers/mmc/host/cavium.c
+++ b/drivers/mmc/host/cavium.c
@@ -637,7 +637,8 @@  static u64 prepare_ext_dma(struct mmc_host *mmc, struct mmc_request *mrq)
 	set_bus_id(&emm_dma, slot->bus_id);
 
 	if (mmc_card_mmc(mmc->card) || (mmc_card_sd(mmc->card) &&
-	    (mmc->card->scr.cmds & SD_SCR_CMD23_SUPPORT)))
+	    ((mmc->card->scr.cmds & SD_SCR_CMD23_SUPPORT) ||
+	     mrq->sbc->flags & MMC_CMD_SD_APP)))
 		emm_dma |= FIELD_PREP(MIO_EMM_DMA_MULTI, 1);
 
 	pr_debug("[%s] blocks: %u  multi: %d\n",