Merge tag 'mmc-2021-2-19' of https://gitlab.denx.de/u-boot/custodians/u-boot-mmc

- mmc_spi improvement
- added mmc-pwrseq to remove duplicated code
- fix response timeout after switch command
- sdhci: skip cache invalidation if DMA is not used

include/mmc.h

@@ -178,6 +178,7 @@ static inline bool mmc_is_tuning_cmd(uint cmdidx)
 #define MMC_STATUS_ERROR	(1 << 19)
 
 #define MMC_STATE_PRG		(7 << 9)
+#define MMC_STATE_TRANS		(4 << 9)
 
 #define MMC_VDD_165_195		0x00000080	/* VDD voltage 1.65 - 1.95 */
 #define MMC_VDD_20_21		0x00000100	/* VDD voltage 2.0 ~ 2.1 */
@@ -591,6 +592,9 @@ struct mmc_config {
 	uint f_max;
 	uint b_max;
 	unsigned char part_type;
+#ifdef CONFIG_MMC_PWRSEQ
+	struct udevice *pwr_dev;
+#endif
 };
 
 struct sd_ssr {
@@ -807,6 +811,17 @@ int mmc_deinit(struct mmc *mmc);
  */
 int mmc_of_parse(struct udevice *dev, struct mmc_config *cfg);
 
+#ifdef CONFIG_MMC_PWRSEQ
+/**
+ * mmc_pwrseq_get_power() - get a power device from device tree
+ *
+ * @dev:	MMC device
+ * @cfg:	MMC configuration
+ * @return 0 if OK, -ve on error
+ */
+int mmc_pwrseq_get_power(struct udevice *dev, struct mmc_config *cfg);
+#endif
+
 int mmc_read(struct mmc *mmc, u64 src, uchar *dst, int size);
 
 /**