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Commit 930f152c authored by Simon Horman's avatar Simon Horman Committed by Chris Ball
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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: default avatarCao Minh Hiep <hiepcm@gmail.com>
Acked-by: default avatarGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: default avatarSimon Horman <horms@verge.net.au>
Signed-off-by: default avatarChris Ball <cjb@laptop.org>
parent f9388257

drivers/mmc/host/sh_mmcif.c

+6 −6
Original line number Diff line number Diff line
@@ -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;