summaryrefslogtreecommitdiffstats
path: root/drivers/mmc
diff options
context:
space:
mode:
authorLucas Stach <dev@lynxeye.de>2015-12-22 19:41:03 +0100
committerUlf Hansson <ulf.hansson@linaro.org>2016-01-05 18:04:02 +0100
commit7ad2ed1dfcbed6f50923fc0afc24aac475bdc0b5 (patch)
tree6ab6e94df1c3d414f3f94d4807a46911a4c3b195 /drivers/mmc
parentc3c2384c3ac073cdc2d8e3bbc89b55cdcf507b8f (diff)
downloadlinux-7ad2ed1dfcbed6f50923fc0afc24aac475bdc0b5.tar.bz2
mmc: tegra: enable UHS-I modes
Keep the quirk bits, as Tegra30 and Tegra114 host have different levels of support for UHS-I modes and so need different spare bits to be set, but change the logic to be positive. Tegra210 needs a different tuning sequence than Tegra30+. Disable UHS modes until support for this is properly added. Signed-off-by: Lucas Stach <dev@lynxeye.de> Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/host/sdhci-tegra.c37
1 files changed, 17 insertions, 20 deletions
diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c
index 020154943732..ff2eefe9f237 100644
--- a/drivers/mmc/host/sdhci-tegra.c
+++ b/drivers/mmc/host/sdhci-tegra.c
@@ -45,9 +45,9 @@
#define NVQUIRK_FORCE_SDHCI_SPEC_200 BIT(0)
#define NVQUIRK_ENABLE_BLOCK_GAP_DET BIT(1)
#define NVQUIRK_ENABLE_SDHCI_SPEC_300 BIT(2)
-#define NVQUIRK_DISABLE_SDR50 BIT(3)
-#define NVQUIRK_DISABLE_SDR104 BIT(4)
-#define NVQUIRK_DISABLE_DDR50 BIT(5)
+#define NVQUIRK_ENABLE_SDR50 BIT(3)
+#define NVQUIRK_ENABLE_SDR104 BIT(4)
+#define NVQUIRK_ENABLE_DDR50 BIT(5)
struct sdhci_tegra_soc_data {
const struct sdhci_pltfm_data *pdata;
@@ -144,18 +144,18 @@ static void tegra_sdhci_reset(struct sdhci_host *host, u8 mask)
/* Erratum: Enable SDHCI spec v3.00 support */
if (soc_data->nvquirks & NVQUIRK_ENABLE_SDHCI_SPEC_300)
misc_ctrl |= SDHCI_MISC_CTRL_ENABLE_SDHCI_SPEC_300;
- /* Don't advertise UHS modes which aren't supported yet */
- if (soc_data->nvquirks & NVQUIRK_DISABLE_SDR50)
- misc_ctrl &= ~SDHCI_MISC_CTRL_ENABLE_SDR50;
- if (soc_data->nvquirks & NVQUIRK_DISABLE_DDR50)
- misc_ctrl &= ~SDHCI_MISC_CTRL_ENABLE_DDR50;
- if (soc_data->nvquirks & NVQUIRK_DISABLE_SDR104)
- misc_ctrl &= ~SDHCI_MISC_CTRL_ENABLE_SDR104;
+ /* Advertise UHS modes as supported by host */
+ if (soc_data->nvquirks & NVQUIRK_ENABLE_SDR50)
+ misc_ctrl |= SDHCI_MISC_CTRL_ENABLE_SDR50;
+ if (soc_data->nvquirks & NVQUIRK_ENABLE_DDR50)
+ misc_ctrl |= SDHCI_MISC_CTRL_ENABLE_DDR50;
+ if (soc_data->nvquirks & NVQUIRK_ENABLE_SDR104)
+ misc_ctrl |= SDHCI_MISC_CTRL_ENABLE_SDR104;
sdhci_writew(host, misc_ctrl, SDHCI_TEGRA_VENDOR_MISC_CTRL);
clk_ctrl = sdhci_readl(host, SDHCI_TEGRA_VENDOR_CLOCK_CTRL);
clk_ctrl &= ~SDHCI_CLOCK_CTRL_SPI_MODE_CLKEN_OVERRIDE;
- if (!(soc_data->nvquirks & NVQUIRK_DISABLE_SDR50))
+ if (soc_data->nvquirks & SDHCI_MISC_CTRL_ENABLE_SDR50)
clk_ctrl |= SDHCI_CLOCK_CTRL_SDR50_TUNING_OVERRIDE;
sdhci_writel(host, clk_ctrl, SDHCI_TEGRA_VENDOR_CLOCK_CTRL);
@@ -305,8 +305,8 @@ static const struct sdhci_pltfm_data sdhci_tegra30_pdata = {
static const struct sdhci_tegra_soc_data soc_data_tegra30 = {
.pdata = &sdhci_tegra30_pdata,
.nvquirks = NVQUIRK_ENABLE_SDHCI_SPEC_300 |
- NVQUIRK_DISABLE_SDR50 |
- NVQUIRK_DISABLE_SDR104,
+ NVQUIRK_ENABLE_SDR50 |
+ NVQUIRK_ENABLE_SDR104,
};
static const struct sdhci_ops tegra114_sdhci_ops = {
@@ -335,9 +335,9 @@ static const struct sdhci_pltfm_data sdhci_tegra114_pdata = {
static const struct sdhci_tegra_soc_data soc_data_tegra114 = {
.pdata = &sdhci_tegra114_pdata,
- .nvquirks = NVQUIRK_DISABLE_SDR50 |
- NVQUIRK_DISABLE_DDR50 |
- NVQUIRK_DISABLE_SDR104,
+ .nvquirks = NVQUIRK_ENABLE_SDR50 |
+ NVQUIRK_ENABLE_DDR50 |
+ NVQUIRK_ENABLE_SDR104,
};
static const struct sdhci_pltfm_data sdhci_tegra210_pdata = {
@@ -353,9 +353,6 @@ static const struct sdhci_pltfm_data sdhci_tegra210_pdata = {
static const struct sdhci_tegra_soc_data soc_data_tegra210 = {
.pdata = &sdhci_tegra210_pdata,
- .nvquirks = NVQUIRK_DISABLE_SDR50 |
- NVQUIRK_DISABLE_DDR50 |
- NVQUIRK_DISABLE_SDR104,
};
static const struct of_device_id sdhci_tegra_dt_match[] = {
@@ -402,7 +399,7 @@ static int sdhci_tegra_probe(struct platform_device *pdev)
if (rc)
goto err_parse_dt;
- if (!(tegra_host->soc_data->nvquirks & NVQUIRK_DISABLE_DDR50))
+ if (tegra_host->soc_data->nvquirks & NVQUIRK_ENABLE_DDR50)
host->mmc->caps |= MMC_CAP_1_8V_DDR;
tegra_host->power_gpio = devm_gpiod_get_optional(&pdev->dev, "power",