diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/host/sdhci-pxav3.c | 28 |
1 files changed, 23 insertions, 5 deletions
diff --git a/drivers/mmc/host/sdhci-pxav3.c b/drivers/mmc/host/sdhci-pxav3.c index 1529efcbb733..90cbf016894e 100644 --- a/drivers/mmc/host/sdhci-pxav3.c +++ b/drivers/mmc/host/sdhci-pxav3.c @@ -118,8 +118,11 @@ static int mv_conf_mbus_windows(struct platform_device *pdev, return 0; } -static int armada_38x_quirks(struct sdhci_host *host) +static int armada_38x_quirks(struct platform_device *pdev, + struct sdhci_host *host) { + struct device_node *np = pdev->dev.of_node; + host->quirks |= SDHCI_QUIRK_MISSING_CAPS; /* * According to erratum 'FE-2946959' both SDR50 and DDR50 @@ -129,6 +132,21 @@ static int armada_38x_quirks(struct sdhci_host *host) */ host->caps1 = sdhci_readl(host, SDHCI_CAPABILITIES_1); host->caps1 &= ~(SDHCI_SUPPORT_SDR50 | SDHCI_SUPPORT_DDR50); + + /* + * According to erratum 'ERR-7878951' Armada 38x SDHCI + * controller has different capabilities than the ones shown + * in its registers + */ + host->caps = sdhci_readl(host, SDHCI_CAPABILITIES); + if (of_property_read_bool(np, "no-1-8-v")) { + host->caps &= ~SDHCI_CAN_VDD_180; + host->mmc->caps &= ~MMC_CAP_1_8V_DDR; + } else { + host->caps &= ~SDHCI_CAN_VDD_330; + } + host->caps1 &= ~(SDHCI_SUPPORT_SDR104 | SDHCI_USE_SDR50_TUNING); + return 0; } @@ -332,8 +350,11 @@ static int sdhci_pxav3_probe(struct platform_device *pdev) if (!IS_ERR(pxa->clk_core)) clk_prepare_enable(pxa->clk_core); + /* enable 1/8V DDR capable */ + host->mmc->caps |= MMC_CAP_1_8V_DDR; + if (of_device_is_compatible(np, "marvell,armada-380-sdhci")) { - ret = armada_38x_quirks(host); + ret = armada_38x_quirks(pdev, host); if (ret < 0) goto err_clk_get; ret = mv_conf_mbus_windows(pdev, mv_mbus_dram_info()); @@ -341,9 +362,6 @@ static int sdhci_pxav3_probe(struct platform_device *pdev) goto err_mbus_win; } - /* enable 1/8V DDR capable */ - host->mmc->caps |= MMC_CAP_1_8V_DDR; - match = of_match_device(of_match_ptr(sdhci_pxav3_of_match), &pdev->dev); if (match) { ret = mmc_of_parse(host->mmc); |