When no GPIO is used to read the card detect status the following error is seen:
MMC: FSL_SDHC: 0, FSL_SDHC: 1 Loading Environment from MMC... MMC: no card present *** Warning - No block device, using default environment
Fix it by handling the "broken-cd" property in the same way that drivers/mmc/sdhci.c does, which considers that the SD card is present when the "broken-cd" property is passed.
Tested on a imx6ul-evk board.
Signed-off-by: Fabio Estevam festevam@gmail.com --- drivers/mmc/fsl_esdhc_imx.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/drivers/mmc/fsl_esdhc_imx.c b/drivers/mmc/fsl_esdhc_imx.c index f1afab742d..7d465ef76b 100644 --- a/drivers/mmc/fsl_esdhc_imx.c +++ b/drivers/mmc/fsl_esdhc_imx.c @@ -115,6 +115,7 @@ struct esdhc_soc_data { * Following is used when Driver Model is enabled for MMC * @dev: pointer for the device * @non_removable: 0: removable; 1: non-removable + * @broken_cd: 0: use GPIO for card detect; 1: Do not use GPIO for card detect * @wp_enable: 1: enable checking wp; 0: no check * @vs18_enable: 1: use 1.8V voltage; 0: use 3.3V * @flags: ESDHC_FLAG_xx in include/fsl_esdhc_imx.h @@ -138,6 +139,7 @@ struct fsl_esdhc_priv { #endif struct udevice *dev; int non_removable; + int broken_cd; int wp_enable; int vs18_enable; u32 flags; @@ -1092,6 +1094,9 @@ static int esdhc_getcd_common(struct fsl_esdhc_priv *priv) #if CONFIG_IS_ENABLED(DM_MMC) if (priv->non_removable) return 1; + + if (priv->broken_cd) + return 1; #ifdef CONFIG_DM_GPIO if (dm_gpio_is_valid(&priv->cd_gpio)) return dm_gpio_get_value(&priv->cd_gpio); @@ -1450,6 +1455,9 @@ static int fsl_esdhc_probe(struct udevice *dev) ESDHC_STROBE_DLL_CTRL_SLV_DLY_TARGET_DEFAULT); priv->strobe_dll_delay_target = val;
+ if (dev_read_bool(dev, "broken-cd")) + priv->broken_cd = 1; + if (dev_read_bool(dev, "non-removable")) { priv->non_removable = 1; } else {