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mmc: fsl_esdhc_imx: add wait_dat0() support 

Add wait_dat0() support, upper layer will use this callback.

Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
This commit is contained in:
Haibo Chen 2020-11-05 14:57:13 +08:00 committed by Stefano Babic
parent b15cd88b22
commit b5874b552f
1 changed files with 15 additions and 0 deletions
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15
drivers/mmc/fsl_esdhc_imx.c
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@ -1646,6 +1646,20 @@ static int fsl_esdhc_set_enhanced_strobe(struct udevice *dev)
}
#endif
static int fsl_esdhc_wait_dat0(struct udevice *dev, int state,
int timeout_us)
{
int ret;
u32 tmp;
struct fsl_esdhc_priv *priv = dev_get_priv(dev);
struct fsl_esdhc *regs = priv->esdhc_regs;
ret = readx_poll_timeout(esdhc_read32, &regs->prsstat, tmp,
!!(tmp & PRSSTAT_DAT0) == !!state,
timeout_us);
return ret;
}
static const struct dm_mmc_ops fsl_esdhc_ops = {
.get_cd = fsl_esdhc_get_cd,
.send_cmd = fsl_esdhc_send_cmd,
@ -1656,6 +1670,7 @@ static const struct dm_mmc_ops fsl_esdhc_ops = {
#if CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT)
.set_enhanced_strobe = fsl_esdhc_set_enhanced_strobe,
#endif
.wait_dat0 = fsl_esdhc_wait_dat0,
};
#endif