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mmc: atmel_sdhci: re-enable sdhci after SD Card re-insertion

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Whenever the SD Card would be removed and then re-inserted while in the
U-Boot command line, the `SDBPWR` bit of the `SDMMC_PCR` register would
remain unset afterwards. In order for the bit to be set again after
re-insertion, register an additional `deferred_probe` method that the
DM would then transparently call. This method will call the generic
`sdhci_probe` which will, during its execution flow, set this bit to 1.

Signed-off-by: Sergiu Moga <sergiu.moga@microchip.com>
Reported-by: Mihai Sain <mihai.sain@microchip.com>
Reviewed-by: Eugen Hristev <eugen.hristev@microchip.com>
This commit is contained in:
Sergiu Moga 2022-06-22 16:30:47 +03:00 committed by Eugen Hristev
parent b6c50e5831
commit 222a1f4907
1 changed files with 12 additions and 0 deletions
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12
drivers/mmc/atmel_sdhci.c
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@ -52,6 +52,17 @@ struct atmel_sdhci_plat {
struct mmc mmc;
};
static int atmel_sdhci_deferred_probe(struct sdhci_host *host)
{
struct udevice *dev = host->mmc->dev;
return sdhci_probe(dev);
}
static const struct sdhci_ops atmel_sdhci_ops = {
.deferred_probe = atmel_sdhci_deferred_probe,
};
static int atmel_sdhci_probe(struct udevice *dev)
{
struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
@ -104,6 +115,7 @@ static int atmel_sdhci_probe(struct udevice *dev)
return ret;
host->mmc->priv = host;
host->ops = &atmel_sdhci_ops;
upriv->mmc = host->mmc;
clk_free(&clk);