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| author | Peng Fan <peng.fan@nxp.com> | 2019-07-10 09:35:26 +0000 |
|---|---|---|
| committer | Peng Fan <peng.fan@nxp.com> | 2019-07-15 10:30:09 +0800 |
| commit | e9c22552675ec90258da1b60819baf5bea36f1c1 (patch) | |
| tree | 546facde251a5ce6354a66b9332a590cb63f5ceb | |
| parent | b0155ac63ce97a73183a6deae1559fb3baa3f61f (diff) | |
| download | u-boot-e9c22552675ec90258da1b60819baf5bea36f1c1.zip u-boot-e9c22552675ec90258da1b60819baf5bea36f1c1.tar.gz u-boot-e9c22552675ec90258da1b60819baf5bea36f1c1.tar.bz2 | |
mmc: fsl_esdhc_imx: add HS400 Enhanced strobe support
Implement set_enhanced_strobe hook for fsl_esdhc_imx,
,in esdhc_set_timing and esdhc_change_pinstate, also handle HS400_ES.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
| -rw-r--r-- | drivers/mmc/fsl_esdhc_imx.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/mmc/fsl_esdhc_imx.c b/drivers/mmc/fsl_esdhc_imx.c index 0d25879..51d2225 100644 --- a/drivers/mmc/fsl_esdhc_imx.c +++ b/drivers/mmc/fsl_esdhc_imx.c @@ -703,6 +703,7 @@ static int esdhc_change_pinstate(struct udevice *dev) case UHS_SDR104: case MMC_HS_200: case MMC_HS_400: + case MMC_HS_400_ES: ret = pinctrl_select_state(dev, "state_200mhz"); break; default: @@ -773,6 +774,7 @@ static int esdhc_set_timing(struct mmc *mmc) writel(mixctrl, ®s->mixctrl); break; case MMC_HS_400: + case MMC_HS_400_ES: mixctrl |= MIX_CTRL_DDREN | MIX_CTRL_HS400_EN; writel(mixctrl, ®s->mixctrl); esdhc_set_strobe_dll(mmc); @@ -1594,6 +1596,21 @@ static int fsl_esdhc_set_ios(struct udevice *dev) return esdhc_set_ios_common(priv, &plat->mmc); } +#if CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT) +static int fsl_esdhc_set_enhanced_strobe(struct udevice *dev) +{ + struct fsl_esdhc_priv *priv = dev_get_priv(dev); + struct fsl_esdhc *regs = priv->esdhc_regs; + u32 m; + + m = readl(®s->mixctrl); + m |= MIX_CTRL_HS400_ES; + writel(m, ®s->mixctrl); + + return 0; +} +#endif + static const struct dm_mmc_ops fsl_esdhc_ops = { .get_cd = fsl_esdhc_get_cd, .send_cmd = fsl_esdhc_send_cmd, @@ -1601,6 +1618,9 @@ static const struct dm_mmc_ops fsl_esdhc_ops = { #ifdef MMC_SUPPORTS_TUNING .execute_tuning = fsl_esdhc_execute_tuning, #endif +#if CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT) + .set_enhanced_strobe = fsl_esdhc_set_enhanced_strobe, +#endif }; #endif |