From: Siva Durga Prasad Paladugu siva.durga.paladugu@xilinx.com
Disable internal clock by clearing the internal clock enable bit. This bit needs to be cleared too when we stop the SDCLK for changing the frequency divisor. This bit should be set to zero when the device is not using the Host controller.
Signed-off-by: Siva Durga Prasad Paladugu sivadur@xilinx.com Signed-off-by: Michal Simek michal.simek@xilinx.com ---
drivers/mmc/sdhci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c index ef7e6150f933..73f05b712f89 100644 --- a/drivers/mmc/sdhci.c +++ b/drivers/mmc/sdhci.c @@ -303,7 +303,7 @@ static int sdhci_set_clock(struct mmc *mmc, unsigned int clock) }
reg = sdhci_readw(host, SDHCI_CLOCK_CONTROL); - reg &= ~SDHCI_CLOCK_CARD_EN; + reg &= ~(SDHCI_CLOCK_CARD_EN | SDHCI_CLOCK_INT_EN); sdhci_writew(host, reg, SDHCI_CLOCK_CONTROL);
if (clock == 0)