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authorJon Hunter <jonathanh@nvidia.com>2016-02-26 09:34:17 +0000
committerUlf Hansson <ulf.hansson@linaro.org>2016-03-16 12:35:37 +0100
commit7bf037d6ac4768e228e337afd7b6c6d98f947f9f (patch)
tree45c9876d8e8adaf303d5e5bb1329f73ccd4222c0 /drivers/mmc
parent887171c730752e26218ed210717df60173d58426 (diff)
downloadlinux-7bf037d6ac4768e228e337afd7b6c6d98f947f9f.tar.bz2
mmc: tegra: Disable UHS-I modes for tegra114
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@nvidia.com> Reviewed-by: Lucas Stach <dev@lynxeye.de> Acked-by: Thierry Reding <treding@nvidia.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Cc: stable@vger.kernel.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/host/sdhci-tegra.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c
index 2c3c57bbef0a..8993db376dc4 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 },