On the sama5d27, currently only the MCI used for boot is operational. The other one errors out when failing to reset the card. Changing the RESET_ALL to RESET_CMD | RESET_DATA fixes this. This might be due to the SoC's "11.1 Software 'Reset For all' command may not execute properly" erratum[1]: > The software 'Reset For All' command may not execute properly, and, as > a result, some registers of the host controller may not reset properly. > The setting of the different registers must be checked beforere > initializing the SD card. [1]: DS80000827A Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx> --- v1 -> v2: no change --- drivers/mci/atmel-sdhci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mci/atmel-sdhci.c b/drivers/mci/atmel-sdhci.c index 70d3cd4091ff..59cd002aae9e 100644 --- a/drivers/mci/atmel-sdhci.c +++ b/drivers/mci/atmel-sdhci.c @@ -48,7 +48,7 @@ static int at91_sdhci_mci_init(struct mci_host *mci, struct device_d *dev) priv->host.dev = dev; - ret = sdhci_reset(sdhci, SDHCI_RESET_ALL); + ret = sdhci_reset(sdhci, SDHCI_RESET_CMD | SDHCI_RESET_DATA); if (ret) return ret; -- 2.27.0 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
