[U-Boot] [PATCH] mmc: sdhci: don't clobber adjacent registers

[Matt Reimer]

On Mon, Feb 23, 2015 at 2:56 PM, Matt Reimer <mreimer at sdgsystems.com> wrote:

> SDHCI_HOST_CONTROL is a byte-sized register, so don't write to it
> as if it were a long, as that would result in clobbering the three
> registers following.
>
> Signed-off-by: Matt Reimer <mreimer at sdgsystems.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 82d7984..1f8917b 100644
> --- a/drivers/mmc/sdhci.c
> +++ b/drivers/mmc/sdhci.c
> @@ -412,7 +412,7 @@ static int sdhci_init(struct mmc *mmc)
>         if (host->quirks & SDHCI_QUIRK_NO_CD) {
>                 unsigned int status;
>
> -               sdhci_writel(host, SDHCI_CTRL_CD_TEST_INS |
> SDHCI_CTRL_CD_TEST,
> +               sdhci_writeb(host, SDHCI_CTRL_CD_TEST_INS |
> SDHCI_CTRL_CD_TEST,
>                         SDHCI_HOST_CONTROL);
>
>                 status = sdhci_readl(host, SDHCI_PRESENT_STATE);
> --
> 1.7.9.5
>
>
ping