[U-Boot] [PATCH v3 0/3] Tegra: MMC: Add DT support for MMC to T20 boards

[Stephen Warren]

On 02/13/2013 02:44 PM, Tom Warren wrote:
> This patchset adds device-tree support to the Tegra MMC driver.
> All device config is done via properties in the DT files instead
> of hard-coded config options/function arguments.
> 
> I've tested this on my Seaboard and everything works fine,
> including card detect. For the other T20 boards, I've used
> the Linux kernel DTS files for the sdhci nodes where there
> wasn't one already, or expanded the info that was already
> there. Everything builds fine, but I haven't tested anything
> but Seaboard.

With the incremental patch below applied,

Tested-by: Stephen Warren <swarren at nvidia.com>
On: Harmony, Seaboard(really Springbank), Ventana, Whistler,
Paz00/AC100, TrimSlice.

> commit a5be5907d77eb4ca18dd9a11dd09183148c9d1b2
> Author: Stephen Warren <swarren at nvidia.com>
> Date:   Thu Feb 14 16:02:24 2013 -0700
> 
>     Fix MMC DT rework
> 
> diff --git a/drivers/mmc/tegra_mmc.c b/drivers/mmc/tegra_mmc.c
> index e8e8512..630f6bd 100644
> --- a/drivers/mmc/tegra_mmc.c
> +++ b/drivers/mmc/tegra_mmc.c
> @@ -497,7 +497,6 @@ static int do_mmc_init(int dev_index)
>         struct mmc_host *host;
>         char gpusage[12]; /* "SD/MMCn PWR" or "SD/MMCn CD" */
>         struct mmc *mmc;
> -       int card_det = 0;
>  
>         /* DT should have been read & host config filled in */
>         host = &mmc_host[dev_index];
> @@ -514,16 +513,15 @@ static int do_mmc_init(int dev_index)
>         if (fdt_gpio_isvalid(&host->pwr_gpio)) {
>                 sprintf(gpusage, "SD/MMC%d PWR", dev_index);
>                 gpio_request(host->pwr_gpio.gpio, gpusage);
> -               fdtdec_set_gpio(&host->pwr_gpio, 1);
> +               gpio_direction_output(host->pwr_gpio.gpio, 1);
>                 debug(" Power GPIO name = %s\n", host->pwr_gpio.name);
>         }
>  
>         if (fdt_gpio_isvalid(&host->cd_gpio)) {
>                 sprintf(gpusage, "SD/MMC%d CD", dev_index);
>                 gpio_request(host->cd_gpio.gpio, gpusage);
> -               card_det = fdtdec_get_gpio(&host->cd_gpio);
> +               gpio_direction_input(host->cd_gpio.gpio);
>                 debug(" CD GPIO name = %s\n", host->cd_gpio.name);
> -               debug("%s: CD state = %d\n", __func__, card_det);
>         }
>  
>         mmc = &mmc_dev[dev_index];