diff options
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/sdhci-esdhc-imx.c | 37 |
1 files changed, 25 insertions, 12 deletions
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index d844be862cfa..2421ac7fa6bf 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -89,6 +89,11 @@ * affects i.MX25 and i.MX35. */ #define ESDHC_FLAG_ENGCM07207 BIT(2) +/* + * The flag tells that the ESDHC controller is an USDHC block that is + * integrated on the i.MX6 series. + */ +#define ESDHC_FLAG_USDHC BIT(3) enum imx_esdhc_type { IMX25_ESDHC, @@ -175,6 +180,11 @@ static inline int is_imx6q_usdhc(struct pltfm_imx_data *data) return data->devtype == IMX6Q_USDHC; } +static inline int esdhc_is_usdhc(struct pltfm_imx_data *data) +{ + return !!(data->flags & ESDHC_FLAG_USDHC); +} + static inline void esdhc_clrset_le(struct sdhci_host *host, u32 mask, u32 val, int reg) { void __iomem *base = host->ioaddr + (reg & ~0x3); @@ -213,11 +223,11 @@ static u32 esdhc_readl_le(struct sdhci_host *host, int reg) } } - if (unlikely(reg == SDHCI_CAPABILITIES_1) && is_imx6q_usdhc(imx_data)) + if (unlikely(reg == SDHCI_CAPABILITIES_1) && esdhc_is_usdhc(imx_data)) val = SDHCI_SUPPORT_DDR50 | SDHCI_SUPPORT_SDR104 | SDHCI_SUPPORT_SDR50; - if (unlikely(reg == SDHCI_MAX_CURRENT) && is_imx6q_usdhc(imx_data)) { + if (unlikely(reg == SDHCI_MAX_CURRENT) && esdhc_is_usdhc(imx_data)) { val = 0; val |= 0xFF << SDHCI_MAX_CURRENT_330_SHIFT; val |= 0xFF << SDHCI_MAX_CURRENT_300_SHIFT; @@ -307,7 +317,7 @@ static u16 esdhc_readw_le(struct sdhci_host *host, int reg) if (unlikely(reg == SDHCI_HOST_VERSION)) { reg ^= 2; - if (is_imx6q_usdhc(imx_data)) { + if (esdhc_is_usdhc(imx_data)) { /* * The usdhc register returns a wrong host version. * Correct it here. @@ -321,7 +331,7 @@ static u16 esdhc_readw_le(struct sdhci_host *host, int reg) if (val & ESDHC_VENDOR_SPEC_VSELECT) ret |= SDHCI_CTRL_VDD_180; - if (is_imx6q_usdhc(imx_data)) { + if (esdhc_is_usdhc(imx_data)) { val = readl(host->ioaddr + ESDHC_MIX_CTRL); if (val & ESDHC_MIX_CTRL_EXE_TUNE) ret |= SDHCI_CTRL_EXEC_TUNING; @@ -379,7 +389,7 @@ static void esdhc_writew_le(struct sdhci_host *host, u16 val, int reg) writel(v, host->ioaddr + ESDHC_VENDOR_SPEC); } - if (is_imx6q_usdhc(imx_data)) { + if (esdhc_is_usdhc(imx_data)) { u32 m = readl(host->ioaddr + ESDHC_MIX_CTRL); /* Swap AC23 bit */ if (val & SDHCI_TRNS_AUTO_CMD23) { @@ -404,7 +414,7 @@ static void esdhc_writew_le(struct sdhci_host *host, u16 val, int reg) (imx_data->flags & ESDHC_FLAG_MULTIBLK_NO_INT)) imx_data->multiblock_status = MULTIBLK_IN_PROCESS; - if (is_imx6q_usdhc(imx_data)) + if (esdhc_is_usdhc(imx_data)) writel(val << 16, host->ioaddr + SDHCI_TRANSFER_MODE); else @@ -470,7 +480,7 @@ static void esdhc_writeb_le(struct sdhci_host *host, u8 val, int reg) * The reset on usdhc fails to clear MIX_CTRL register. * Do it manually here. */ - if (is_imx6q_usdhc(imx_data)) + if (esdhc_is_usdhc(imx_data)) writel(0, host->ioaddr + ESDHC_MIX_CTRL); } } @@ -507,7 +517,7 @@ static inline void esdhc_pltfm_set_clock(struct sdhci_host *host, u32 temp, val; if (clock == 0) { - if (is_imx6q_usdhc(imx_data)) { + if (esdhc_is_usdhc(imx_data)) { val = readl(host->ioaddr + ESDHC_VENDOR_SPEC); writel(val & ~ESDHC_VENDOR_SPEC_FRC_SDCLK_ON, host->ioaddr + ESDHC_VENDOR_SPEC); @@ -515,7 +525,7 @@ static inline void esdhc_pltfm_set_clock(struct sdhci_host *host, goto out; } - if (is_imx6q_usdhc(imx_data)) + if (esdhc_is_usdhc(imx_data)) pre_div = 1; temp = sdhci_readl(host, ESDHC_SYSTEM_CONTROL); @@ -542,7 +552,7 @@ static inline void esdhc_pltfm_set_clock(struct sdhci_host *host, | (pre_div << ESDHC_PREDIV_SHIFT)); sdhci_writel(host, temp, ESDHC_SYSTEM_CONTROL); - if (is_imx6q_usdhc(imx_data)) { + if (esdhc_is_usdhc(imx_data)) { val = readl(host->ioaddr + ESDHC_VENDOR_SPEC); writel(val | ESDHC_VENDOR_SPEC_FRC_SDCLK_ON, host->ioaddr + ESDHC_VENDOR_SPEC); @@ -865,6 +875,9 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev) if (is_imx25_esdhc(imx_data) || is_imx35_esdhc(imx_data)) imx_data->flags |= ESDHC_FLAG_ENGCM07207; + if (is_imx6q_usdhc(imx_data)) + imx_data->flags |= ESDHC_FLAG_USDHC; + imx_data->clk_ipg = devm_clk_get(&pdev->dev, "ipg"); if (IS_ERR(imx_data->clk_ipg)) { err = PTR_ERR(imx_data->clk_ipg); @@ -917,7 +930,7 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev) * The imx6q ROM code will change the default watermark level setting * to something insane. Change it back here. */ - if (is_imx6q_usdhc(imx_data)) + if (esdhc_is_usdhc(imx_data)) writel(0x08100810, host->ioaddr + ESDHC_WTMK_LVL); boarddata = &imx_data->boarddata; @@ -980,7 +993,7 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev) } /* sdr50 and sdr104 needs work on 1.8v signal voltage */ - if ((boarddata->support_vsel) && is_imx6q_usdhc(imx_data)) { + if ((boarddata->support_vsel) && esdhc_is_usdhc(imx_data)) { imx_data->pins_100mhz = pinctrl_lookup_state(imx_data->pinctrl, ESDHC_PINCTRL_STATE_100MHZ); imx_data->pins_200mhz = pinctrl_lookup_state(imx_data->pinctrl, |