mmc: sh_mmcif: mmc->f_max should be half of the bus clock

mmc->f_max should be half of the bus clock.
And now that mmc->f_max is not equal to the bus clock the
latter should be used directly to calculate mmc->f_min.

Cc: Magnus Damm <magnus.damm@gmail.com>
Tested-by: Cao Minh Hiep <hiepcm@gmail.com>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Chris Ball <cjb@laptop.org>

1 files changed, 6 insertions, 6 deletions

diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c
index d79c6430c16..4bb999ed335 100644
--- a/drivers/mmc/host/sh_mmcif.c
+++ b/drivers/mmc/host/sh_mmcif.c
@@ -1298,14 +1298,14 @@ static int __devinit sh_mmcif_probe(struct platform_device *pdev)
         spin_lock_init(&host->lock);
 
         mmc->ops = &sh_mmcif_ops;
-        mmc->f_max = host->clk;
+        mmc->f_max = host->clk / 2;
         /* close to 400KHz */
-        if (mmc->f_max < 51200000)
-                mmc->f_min = mmc->f_max / 128;
-        else if (mmc->f_max < 102400000)
-                mmc->f_min = mmc->f_max / 256;
+        if (host->clk < 51200000)
+                mmc->f_min = host->clk / 128;
+        else if (host->clk < 102400000)
+                mmc->f_min = host->clk / 256;
         else
-                mmc->f_min = mmc->f_max / 512;
+                mmc->f_min = host->clk / 512;
         if (pd->ocr)
                 mmc->ocr_avail = pd->ocr;
         mmc->caps = MMC_CAP_MMC_HIGHSPEED;