mxcmmc: decrease minimum frequency to make MMC cards work

This is a temporary workaround until the MMC stack can be fixed. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Pierre Ossman <pierre@ossman.eu>
git-mirror · Jun 3, 2009 · c499b06 · c499b06
1 parent 9fa7eb2
commit c499b06
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c
@@ -724,7 +724,9 @@ static int mxcmci_probe(struct platform_device *pdev)
 		goto out_clk_put;
 	}
 
-	mmc->f_min = clk_get_rate(host->clk) >> 7;
+	mmc->f_min = clk_get_rate(host->clk) >> 16;
+	if (mmc->f_min < 400000)
+		mmc->f_min = 400000;
 	mmc->f_max = clk_get_rate(host->clk) >> 1;
 
 	/* recommended in data sheet */