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mmc: zynq_sdhci: Change granularity of timeout to 1us

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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
This commit is contained in:
Ashok Reddy Soma 2022-02-23 15:13:31 +01:00 committed by Michal Simek
parent c252b27747
commit 8d32bca205
1 changed files with 2 additions and 2 deletions
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4
drivers/mmc/zynq_sdhci.c
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@ -770,11 +770,11 @@ static int arasan_sdhci_probe(struct udevice *dev)
* 1000msec till the card detect state gets stable. * 1000msec till the card detect state gets stable.
*/ */
if (IS_ENABLED(CONFIG_ARCH_VERSAL)) { if (IS_ENABLED(CONFIG_ARCH_VERSAL)) {
u32 timeout = 1000; u32 timeout = 1000000;
while (((sdhci_readl(host, SDHCI_PRESENT_STATE) & while (((sdhci_readl(host, SDHCI_PRESENT_STATE) &
SDHCI_CARD_STATE_STABLE) == 0) && timeout) { SDHCI_CARD_STATE_STABLE) == 0) && timeout) {
mdelay(1); udelay(1);
timeout--; timeout--;
} }
if (!timeout) { if (!timeout) {