diff mbox series

[v6,9/9] mmc: core: Enable SDUC

Message ID 20240904145256.3670679-10-avri.altman@wdc.com (mailing list archive)
State New
Headers show
Series Add SDUC Support | expand

Commit Message

Avri Altman Sept. 4, 2024, 2:52 p.m. UTC 
Enable SDUC if the card responded to ACMD41 with HCS & HO2T bits set.

Signed-off-by: Avri Altman <avri.altman@wdc.com>
---
 drivers/mmc/core/sd.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index eb9990d9db56..4261d3ae31ef 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -1462,7 +1462,10 @@  static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
 	}
 
 	if (!oldcard) {
-		err = mmc_sd_get_csd(card, false);
+		u32 sduc_arg = SD_OCR_CCS | SD_OCR_2T;
+		bool is_sduc = (rocr & sduc_arg) == sduc_arg;
+
+		err = mmc_sd_get_csd(card, is_sduc);
 		if (err)
 			goto free_card;