mmc: sdhci-of-at91: perform a hardware reset at probe time

For eMMC, it may happen that the memory is left by the bootloader in a bad state.
We need to perform a hardware reset by asserting/deasserting the RSTN line.
This will ensure the memory comes out in a clean state.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>

Author: ehristev

drivers/mmc/host/sdhci-of-at91.c

@@ -421,6 +421,8 @@ static int sdhci_at91_probe(struct platform_device *pdev)
 
 	/* Perform a software reset before using the IP */
 	sdhci_at91_reset(host, SDHCI_RESET_ALL);
+	/* Perform a hardware reset before using the IP */
+	sdhci_at91_hw_reset(host);
 
 	priv->mainck = devm_clk_get(&pdev->dev, "baseclk");
 	if (IS_ERR(priv->mainck)) {