diff options
| author | Avri Altman <avri.altman@wdc.com> | 2024-10-06 08:11:48 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2024-10-14 12:40:10 +0200 |
| commit | 899404e1503461adde3890828f7ed18a3032ec59 (patch) | |
| tree | d524b85c8cbe8c69ac5124264276e6f1ed4ed72f | |
| parent | a7861651943dac0006f55e0b6db28ed8e9dbe411 (diff) | |
mmc: core: Enable SDUC
Enable SDUC if the card responded to ACMD41 with HCS & HO2T bits set.
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Avri Altman <avri.altman@wdc.com>
Link: https://lore.kernel.org/r/20241006051148.160278-11-avri.altman@wdc.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
| -rw-r--r-- | drivers/mmc/core/sd.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c index 33e806adcbf7..918b86bf8bbb 100644 --- a/drivers/mmc/core/sd.c +++ b/drivers/mmc/core/sd.c @@ -836,8 +836,11 @@ try_again: * block-addressed SDHC cards. */ err = mmc_send_if_cond(host, ocr); - if (!err) + if (!err) { ocr |= SD_OCR_CCS; + /* Set HO2T as well - SDUC card won't respond otherwise */ + ocr |= SD_OCR_2T; + } /* * If the host supports one of UHS-I modes, request the card @@ -1448,7 +1451,10 @@ retry: } 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; |