On Tue, Dec 10, 2013 at 08:56:06PM +0800, Dong Aisheng wrote:
> The default sdhci driver write 0xE into timeout counter register to
> set the maximum timeout. The value is not correct for uSDHC since the
> max counter value for uSDHC is 0xF.
> Instead of using common timeout code in sdhci, we implement esdhc_set_timeout
> to handle the difference between eSDHC and uSDHC.
>
> Signed-off-by: Dong Aisheng <b29396@xxxxxxxxxxxxx>
> ---
> drivers/mmc/host/sdhci-esdhc-imx.c | 11 +++++++++++
> 1 files changed, 11 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
> index 97b35e1..c24cb23 100644
> --- a/drivers/mmc/host/sdhci-esdhc-imx.c
> +++ b/drivers/mmc/host/sdhci-esdhc-imx.c
> @@ -868,6 +868,16 @@ unsigned int esdhc_get_max_timeout(struct sdhci_host *host)
> return max_to / (esdhc_pltfm_get_max_clock(host) / 1000);
> }
>
> +void esdhc_set_timeout(struct sdhci_host *host, struct mmc_command *cmd)
static?
Shawn
> +{
> + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> + struct pltfm_imx_data *imx_data = pltfm_host->priv;
> +
> + /* use maximum timeout counter */
> + sdhci_writeb(host, esdhc_is_usdhc(imx_data) ? 0xF : 0xE,
> + SDHCI_TIMEOUT_CONTROL);
> +}
> +
> static struct sdhci_ops sdhci_esdhc_ops = {
> .read_l = esdhc_readl_le,
> .read_w = esdhc_readw_le,
> @@ -881,6 +891,7 @@ static struct sdhci_ops sdhci_esdhc_ops = {
> .platform_bus_width = esdhc_pltfm_bus_width,
> .set_uhs_signaling = esdhc_set_uhs_signaling,
> .get_max_timeout = esdhc_get_max_timeout,
> + .set_timeout = esdhc_set_timeout,
> };
>
> static const struct sdhci_pltfm_data sdhci_esdhc_imx_pdata = {
> --
> 1.7.2.rc3
>
>
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