6;
> > ulf.hans...@linaro.org; ch...@printf.net; shawn@linaro.org; linux-
> > arm-ker...@lists.infradead.org
> > Subject: Re: [PATCH 2/6] mmc: sdhci-esdhc-imx: add tuning-step seting
> > support
> >
> > On Wed, Jun 10, 2015 at 04:50:40PM +0800, Haibo
On Wed, Jun 10, 2015 at 04:50:40PM +0800, Haibo Chen wrote:
> @@ -969,6 +976,8 @@ sdhci_esdhc_imx_probe_dt(struct platform_device *pdev,
>
> of_property_read_u32(np, "max-frequency", &boarddata->f_max);
>
> + of_property_read_u32(np, "tuning-step", &boarddata->tuning_step);
> +
Where
tuning-step is the delay cell steps in tuning procedure. The default value
of tuning-step is 1. For imx6 series usdhc, tuning procedure can be passed
when the tuning-step value is 1. But imx7d usdhc need the tuning-step value
as 2, otherwise it can't pass the tuning procedure.
So this patch add th
