diff options
| author | Tanmay Kathpalia <[email protected]> | 2025-12-03 04:21:31 -0800 |
|---|---|---|
| committer | Peng Fan <[email protected]> | 2025-12-11 20:53:50 +0800 |
| commit | b033255a5795cc2d88f761c856d6e8e354267582 (patch) | |
| tree | 4d075c8230264764006a8e5cdf7a476c56637913 | |
| parent | 66be03b7ee19444b23aae3990a434a7470fc1641 (diff) | |
mmc: sdhci-cadence: Add reset control support
Add reset control functionality to the SDHCI Cadence driver to properly
handle hardware reset sequences during probe. This ensures the controller
is in a known state before initialization.
Signed-off-by: Tanmay Kathpalia <[email protected]>
Reviewed-by: Balsundar Ponnusamy <[email protected]>
Reviewed-by: Peng Fan <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
| -rw-r--r-- | drivers/mmc/sdhci-cadence.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/mmc/sdhci-cadence.c b/drivers/mmc/sdhci-cadence.c index 7d169efa476..6c9d24fe5f7 100644 --- a/drivers/mmc/sdhci-cadence.c +++ b/drivers/mmc/sdhci-cadence.c @@ -15,6 +15,7 @@ #include <linux/sizes.h> #include <linux/libfdt.h> #include <mmc.h> +#include <reset.h> #include <sdhci.h> #include "sdhci-cadence.h" @@ -214,6 +215,7 @@ static int sdhci_cdns_probe(struct udevice *dev) struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev); struct sdhci_cdns_plat *plat = dev_get_plat(dev); struct sdhci_host *host = dev_get_priv(dev); + struct reset_ctl_bulk reset_bulk; fdt_addr_t base; int ret; @@ -225,6 +227,10 @@ static int sdhci_cdns_probe(struct udevice *dev) if (!plat->hrs_addr) return -ENOMEM; + ret = reset_get_bulk(dev, &reset_bulk); + if (!ret) + reset_deassert_bulk(&reset_bulk); + host->name = dev->name; host->ioaddr = plat->hrs_addr + SDHCI_CDNS_SRS_BASE; host->ops = &sdhci_cdns_ops; |