Subject: [PATCH 1/2] sdhci-esdhc-imx: fix timeout on i.MX's sdhci

From: [email-masked] (Chris Ball)
Date: Sat, 23 Oct 2010 00:12:03 +0100

On Thu, Oct 21, 2010 at 11:20:27PM +0200, Eric B?nard wrote:
> this patch fix timeout problems on i.MX's sdhci as suggested by
> Richard Zhu.
> 
> Tested on :
> - i.MX257 : not needed
> - i.MX357 : needed
> - i.MX515 : needed
> 
> more details can be found here :
> http://lists.infradead.org/pipermail/linux-arm-kernel/2010-October/029748.html
> 
> Signed-off-by: Eric B?nard <[email-masked]>
> Tested-by: Shawn Guo <[email-masked]>
> ---
>  drivers/mmc/host/sdhci-esdhc-imx.c |    6 ++++++
>  1 files changed, 6 insertions(+), 0 deletions(-)
> 
> diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
> index afbac9a..11e1ae1 100644
> --- a/drivers/mmc/host/sdhci-esdhc-imx.c
> +++ b/drivers/mmc/host/sdhci-esdhc-imx.c
> @@ -130,6 +130,12 @@ static int esdhc_pltfm_init(struct sdhci_host *host, struct sdhci_pltfm_data *pd
>  		gpio_request(boarddata->wp_gpio, "SD_WP");
>  		gpio_direction_input(boarddata->wp_gpio);
>  	}
> +
> +	if (cpu_is_mx35() || cpu_is_mx51()) {
> +		dev_info(mmc_dev(host->mmc), "using broken timeout quirk\n");
> +		host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL;
> +	}
> +
>  	return 0;
>  }
>  

This has Wolfram's RFC wp-on-gpio patch applied.  Want to repost these
against mmc-next?

I'll plan on leaving this until after -rc1, so that I can send out a
pull request shortly.  Thanks,

-- 
Chris Ball   <[email-masked]>   <http://printf.net/>
One Laptop Per Child