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, only disable UHS-I modes for Tegra114
and in order to do this it is necessary to revert changes from commits
a8e326a911d3 ("mmc: tegra: implement module external clock change"),
c3c2384c3ac0 ("mmc: tegra: implement UHS tuning"), 7ad2ed1dfcbe
("mmc: tegra: enable UHS-I modes") that impact Tegra114. To do this so
that UHS-I mode can be disabled for Tegra114 but not for Tegra124
separate the platform data, soc data and sdhci-ops so they are no longer
common to both Tegra114 and Tegra124.
Fixes: a8e326a911d3 ("mmc: tegra: implement module external clock change")
Signed-off-by: Jon Hunter <jonathanh@xxxxxxxxxx>
---
drivers/mmc/host/sdhci-tegra.c | 42 +++++++++++++++++++++++++++++++++++++-----
1 file changed, 37 insertions(+), 5 deletions(-)
diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c
index 83c4bf7bc16c..bc7a0847e316 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);
@@ -315,6 +321,32 @@ static const struct sdhci_ops tegra114_sdhci_ops = {
.write_w = tegra_sdhci_writew,
.write_l = tegra_sdhci_writel,
.set_clock = tegra_sdhci_set_clock,
+ .set_bus_width = sdhci_set_bus_width,
+ .reset = tegra_sdhci_reset,
+ .set_uhs_signaling = sdhci_set_uhs_signaling,
+ .get_max_clock = sdhci_pltfm_clk_get_max_clock,
+};
+
+static const struct sdhci_pltfm_data sdhci_tegra114_pdata = {
+ .quirks = SDHCI_QUIRK_BROKEN_TIMEOUT_VAL |
+ SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |
+ SDHCI_QUIRK_SINGLE_POWER_WRITE |
+ SDHCI_QUIRK_NO_HISPD_BIT |
+ SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC |
+ SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN,
+ .ops = &tegra114_sdhci_ops,
+};
+
+static const struct sdhci_tegra_soc_data soc_data_tegra114 = {
+ .pdata = &sdhci_tegra114_pdata,
+};
+
+static const struct sdhci_ops tegra124_sdhci_ops = {
+ .get_ro = tegra_sdhci_get_ro,
+ .read_w = tegra_sdhci_readw,
+ .write_w = tegra_sdhci_writew,
+ .write_l = tegra_sdhci_writel,
+ .set_clock = tegra_sdhci_set_clock,
.set_bus_width = tegra_sdhci_set_bus_width,
.reset = tegra_sdhci_reset,
.platform_execute_tuning = tegra_sdhci_execute_tuning,
@@ -322,7 +354,7 @@ static const struct sdhci_ops tegra114_sdhci_ops = {
.get_max_clock = tegra_sdhci_get_max_clock,
};
-static const struct sdhci_pltfm_data sdhci_tegra114_pdata = {
+static const struct sdhci_pltfm_data sdhci_tegra124_pdata = {
.quirks = SDHCI_QUIRK_BROKEN_TIMEOUT_VAL |
SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |
SDHCI_QUIRK_SINGLE_POWER_WRITE |
@@ -330,11 +362,11 @@ static const struct sdhci_pltfm_data sdhci_tegra114_pdata = {
SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC |
SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN,
.quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
- .ops = &tegra114_sdhci_ops,
+ .ops = &tegra124_sdhci_ops,
};
-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_tegra124_pdata,
.nvquirks = NVQUIRK_ENABLE_SDR50 |
NVQUIRK_ENABLE_DDR50 |
NVQUIRK_ENABLE_SDR104,
@@ -357,7 +389,7 @@ 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 },
--
2.1.4
--
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