Messages in this thread Patch in this message | | | From | Aapo Vienamo <> | Subject | [PATCH v2 26/40] mmc: tegra: Enable workaround for tuning transfer mode bug | Date | Fri, 10 Aug 2018 21:08:28 +0300 |
| |
Set SDHCI_QUIRK2_TUNE_SKIP_XFERMODE_REG_PROG on Tegra210 and Tegra186. This prevents the controller from hanging during tuning. This bug does not seem to be documented but it's handled in a similar way in the downstream kernel.
Signed-off-by: Aapo Vienamo <avienamo@nvidia.com> --- drivers/mmc/host/sdhci-tegra.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c index bac2034..3a53593 100644 --- a/drivers/mmc/host/sdhci-tegra.c +++ b/drivers/mmc/host/sdhci-tegra.c @@ -836,7 +836,8 @@ static const struct sdhci_pltfm_data sdhci_tegra210_pdata = { SDHCI_QUIRK_NO_HISPD_BIT | SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC | SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN, - .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN, + .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN | + SDHCI_QUIRK2_TUNE_SKIP_XFERMODE_REG_PROG, .ops = &tegra210_sdhci_ops, }; @@ -862,7 +863,8 @@ static const struct sdhci_pltfm_data sdhci_tegra186_pdata = { * to 32-bit dma mask. Ideally 40-bit dma mask would work, * But it is not supported as of now. */ - SDHCI_QUIRK2_BROKEN_64_BIT_DMA, + SDHCI_QUIRK2_BROKEN_64_BIT_DMA | + SDHCI_QUIRK2_TUNE_SKIP_XFERMODE_REG_PROG, .ops = &tegra210_sdhci_ops, }; -- 2.7.4
| |