Sorry forgot to mark this as V2!
On 26/02/16 09:34, Jon Hunter wrote:
> SD card support for Tegra114 started failing after commit a8e326a911d3
> ("mmc: tegra: implement module external clock change") was merged. This
> commit was part of a series to enable UHS-I modes for Tegra. To
> workaround this problem for now, disable UHS-I modes for Tegra114 by
> separating the soc data structures for Tegra114 and Tegra124 so that
> UHS-I is still enabled for Tegra124 but not Tegra114.
>
> Fixes: a8e326a911d3 ("mmc: tegra: implement module external clock change")
>
> Signed-off-by: Jon Hunter <jonathanh@xxxxxxxxxx>
> ---
> drivers/mmc/host/sdhci-tegra.c | 12 +++++++++++-
> 1 file changed, 11 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c
> index 83c4bf7bc16c..212d51f08939 100644
> --- a/drivers/mmc/host/sdhci-tegra.c
> +++ b/drivers/mmc/host/sdhci-tegra.c
> @@ -147,10 +147,16 @@ static void tegra_sdhci_reset(struct sdhci_host *host, u8 mask)
> /* Advertise UHS modes as supported by host */
> if (soc_data->nvquirks & NVQUIRK_ENABLE_SDR50)
> misc_ctrl |= SDHCI_MISC_CTRL_ENABLE_SDR50;
> + else
> + misc_ctrl &= ~SDHCI_MISC_CTRL_ENABLE_SDR50;
> if (soc_data->nvquirks & NVQUIRK_ENABLE_DDR50)
> misc_ctrl |= SDHCI_MISC_CTRL_ENABLE_DDR50;
> + else
> + misc_ctrl &= ~SDHCI_MISC_CTRL_ENABLE_DDR50;
> if (soc_data->nvquirks & NVQUIRK_ENABLE_SDR104)
> misc_ctrl |= SDHCI_MISC_CTRL_ENABLE_SDR104;
> + else
> + misc_ctrl &= ~SDHCI_MISC_CTRL_ENABLE_SDR104;
> sdhci_writel(host, misc_ctrl, SDHCI_TEGRA_VENDOR_MISC_CTRL);
>
> clk_ctrl = sdhci_readl(host, SDHCI_TEGRA_VENDOR_CLOCK_CTRL);
> @@ -335,6 +341,10 @@ static const struct sdhci_pltfm_data sdhci_tegra114_pdata = {
>
> static const struct sdhci_tegra_soc_data soc_data_tegra114 = {
> .pdata = &sdhci_tegra114_pdata,
> +};
> +
> +static const struct sdhci_tegra_soc_data soc_data_tegra124 = {
> + .pdata = &sdhci_tegra114_pdata,
> .nvquirks = NVQUIRK_ENABLE_SDR50 |
> NVQUIRK_ENABLE_DDR50 |
> NVQUIRK_ENABLE_SDR104,
> @@ -357,7 +367,7 @@ static const struct sdhci_tegra_soc_data soc_data_tegra210 = {
>
> static const struct of_device_id sdhci_tegra_dt_match[] = {
> { .compatible = "nvidia,tegra210-sdhci", .data = &soc_data_tegra210 },
> - { .compatible = "nvidia,tegra124-sdhci", .data = &soc_data_tegra114 },
> + { .compatible = "nvidia,tegra124-sdhci", .data = &soc_data_tegra124 },
> { .compatible = "nvidia,tegra114-sdhci", .data = &soc_data_tegra114 },
> { .compatible = "nvidia,tegra30-sdhci", .data = &soc_data_tegra30 },
> { .compatible = "nvidia,tegra20-sdhci", .data = &soc_data_tegra20 },
>
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