From: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com>
Date: Wed, 23 Feb 2022 14:13:31 +0000 (+0100)
Subject: mmc: zynq_sdhci: Change granularity of timeout to 1us
X-Git-Url: http://git.dujemihanovic.xyz/login.html?a=commitdiff_plain;h=8d32bca20535dea2f10d910b6458aec75d0c3fd9;p=u-boot.git

mmc: zynq_sdhci: Change granularity of timeout to 1us

The timeout used in 'commit b6f44082d5cd ("mmc: zynq_sdhci: Wait
till sd card detect state is stable")' workaround is 1000ms at a
granularity of 1msec. Change it to 1usec, to not waste time incase the
cd is stable.

Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/f008d2bcf864702a01564789f14f9cdecb8acd45.1645625609.git.michal.simek@xilinx.com
---

diff --git a/drivers/mmc/zynq_sdhci.c b/drivers/mmc/zynq_sdhci.c
index f4d69a2f70..7d62d05eda 100644
--- a/drivers/mmc/zynq_sdhci.c
+++ b/drivers/mmc/zynq_sdhci.c
@@ -770,11 +770,11 @@ static int arasan_sdhci_probe(struct udevice *dev)
 	 * 1000msec till the card detect state gets stable.
 	 */
 	if (IS_ENABLED(CONFIG_ARCH_VERSAL)) {
-		u32 timeout = 1000;
+		u32 timeout = 1000000;
 
 		while (((sdhci_readl(host, SDHCI_PRESENT_STATE) &
 			 SDHCI_CARD_STATE_STABLE) == 0) && timeout) {
-			mdelay(1);
+			udelay(1);
 			timeout--;
 		}
 		if (!timeout) {