diff options
| author | Alper Nebi Yasak | 2022-03-15 20:46:26 +0300 |
|---|---|---|
| committer | Jaehoon Chung | 2022-03-16 18:10:19 +0900 |
| commit | 2a1d7c635fdede97a05d16067a936bba0a37f908 (patch) | |
| tree | 11b759d5256caec7cae47a76e1d49c5b38f5ce14 /drivers/mmc/sdhci.c | |
| parent | 0f3466f52fbacce67e147b9234e6323edff26a6d (diff) | |
mmc: sdhci: Add HS400 Enhanced Strobe support
Delegate setting the Enhanced Strobe configuration to individual drivers
if they set a function for it. Return -ENOTSUPP if they do not, like
what the MMC uclass does.
Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Diffstat (limited to 'drivers/mmc/sdhci.c')
| -rw-r--r-- | drivers/mmc/sdhci.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c index 766e4a6b0c5..bf989a594f7 100644 --- a/drivers/mmc/sdhci.c +++ b/drivers/mmc/sdhci.c @@ -513,6 +513,7 @@ void sdhci_set_uhs_timing(struct sdhci_host *host) reg |= SDHCI_CTRL_UHS_SDR104; break; case MMC_HS_400: + case MMC_HS_400_ES: reg |= SDHCI_CTRL_HS400; break; default: @@ -666,6 +667,7 @@ static int sdhci_set_ios(struct mmc *mmc) mmc->selected_mode == MMC_DDR_52 || mmc->selected_mode == MMC_HS_200 || mmc->selected_mode == MMC_HS_400 || + mmc->selected_mode == MMC_HS_400_ES || mmc->selected_mode == UHS_SDR25 || mmc->selected_mode == UHS_SDR50 || mmc->selected_mode == UHS_SDR104 || @@ -799,6 +801,19 @@ static int sdhci_wait_dat0(struct udevice *dev, int state, return -ETIMEDOUT; } +#if CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT) +static int sdhci_set_enhanced_strobe(struct udevice *dev) +{ + struct mmc *mmc = mmc_get_mmc_dev(dev); + struct sdhci_host *host = mmc->priv; + + if (host->ops && host->ops->set_enhanced_strobe) + return host->ops->set_enhanced_strobe(host); + + return -ENOTSUPP; +} +#endif + const struct dm_mmc_ops sdhci_ops = { .send_cmd = sdhci_send_command, .set_ios = sdhci_set_ios, @@ -808,6 +823,9 @@ const struct dm_mmc_ops sdhci_ops = { .execute_tuning = sdhci_execute_tuning, #endif .wait_dat0 = sdhci_wait_dat0, +#if CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT) + .set_enhanced_strobe = sdhci_set_enhanced_strobe, +#endif }; #else static const struct mmc_ops sdhci_ops = { |