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mmc: sdhci-esdhc-imx: move tuning static configuration into hwinit function 

Move tuning static configuration into basic hwinit function.
Tuning configuration may also be lost in low power mode, so
need restore in hwinit().

Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Dong Aisheng 2016-07-12 15:46:22 +08:00 committed by Ulf Hansson
parent f3f5cf3dfc
commit 2b16cf326b
1 changed files with 18 additions and 18 deletions
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36
drivers/mmc/host/sdhci-esdhc-imx.c
View File

@ -484,7 +484,6 @@ static void esdhc_writew_le(struct sdhci_host *host, u16 val, int reg)
} else if (imx_data->socdata->flags & ESDHC_FLAG_STD_TUNING) {
u32 v = readl(host->ioaddr + SDHCI_ACMD12_ERR);
u32 m = readl(host->ioaddr + ESDHC_MIX_CTRL);
u32 tuning_ctrl;
if (val & SDHCI_CTRL_TUNED_CLK) {
v |= ESDHC_MIX_CTRL_SMPCLK_SEL;
} else {
@ -497,18 +496,6 @@ static void esdhc_writew_le(struct sdhci_host *host, u16 val, int reg)
v |= ESDHC_MIX_CTRL_EXE_TUNE;
m |= ESDHC_MIX_CTRL_FBCLK_SEL;
m |= ESDHC_MIX_CTRL_AUTO_TUNE_EN;
tuning_ctrl = readl(host->ioaddr + ESDHC_TUNING_CTRL);
tuning_ctrl |= ESDHC_STD_TUNING_EN | ESDHC_TUNING_START_TAP_DEFAULT;
if (imx_data->boarddata.tuning_start_tap) {
tuning_ctrl &= ~ESDHC_TUNING_START_TAP_MASK;
tuning_ctrl |= imx_data->boarddata.tuning_start_tap;
}
if (imx_data->boarddata.tuning_step) {
tuning_ctrl &= ~ESDHC_TUNING_STEP_MASK;
tuning_ctrl |= imx_data->boarddata.tuning_step << ESDHC_TUNING_STEP_SHIFT;
}
writel(tuning_ctrl, host->ioaddr + ESDHC_TUNING_CTRL);
} else {
v &= ~ESDHC_MIX_CTRL_EXE_TUNE;
}
@ -983,6 +970,7 @@ static void sdhci_esdhc_imx_hwinit(struct sdhci_host *host)
{
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
struct pltfm_imx_data *imx_data = sdhci_pltfm_priv(pltfm_host);
int tmp;
if (esdhc_is_usdhc(imx_data)) {
/*
@ -1014,6 +1002,23 @@ static void sdhci_esdhc_imx_hwinit(struct sdhci_host *host)
/* disable DLL_CTRL delay line settings */
writel(0x0, host->ioaddr + ESDHC_DLL_CTRL);
if (imx_data->socdata->flags & ESDHC_FLAG_STD_TUNING) {
tmp = readl(host->ioaddr + ESDHC_TUNING_CTRL);
tmp |= ESDHC_STD_TUNING_EN |
ESDHC_TUNING_START_TAP_DEFAULT;
if (imx_data->boarddata.tuning_start_tap) {
tmp &= ~ESDHC_TUNING_START_TAP_MASK;
tmp |= imx_data->boarddata.tuning_start_tap;
}
if (imx_data->boarddata.tuning_step) {
tmp &= ~ESDHC_TUNING_STEP_MASK;
tmp |= imx_data->boarddata.tuning_step
<< ESDHC_TUNING_STEP_SHIFT;
}
writel(tmp, host->ioaddr + ESDHC_TUNING_CTRL);
}
}
}
@ -1225,11 +1230,6 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
sdhci_esdhc_ops.platform_execute_tuning =
esdhc_executing_tuning;
if (imx_data->socdata->flags & ESDHC_FLAG_STD_TUNING)
writel(readl(host->ioaddr + ESDHC_TUNING_CTRL) |
ESDHC_STD_TUNING_EN | ESDHC_TUNING_START_TAP_DEFAULT,
host->ioaddr + ESDHC_TUNING_CTRL);
if (imx_data->socdata->flags & ESDHC_FLAG_ERR004536)
host->quirks |= SDHCI_QUIRK_BROKEN_ADMA;