Merge tag 'mmc-2020-10-14' of https://gitlab.denx.de/u-boot/custodians/u-boot-mmcWIP/15Oct2020

- fsl_esdhc_imx cleanup
- not send cm13 if send_status is 0.
- Add reinit API
- Add mmc HS400 for fsl_esdhc
- Several cleanup for fsl_esdhc
- Add ADMA2 for sdhci

3 files changed, 69 insertions, 8 deletions

diff --git a/include/fsl_esdhc.h b/include/fsl_esdhc.h
index 7f8f8edc62..e6f1c75e27 100644
--- a/include/fsl_esdhc.h
+++ b/include/fsl_esdhc.h
@@ -74,8 +74,10 @@
 #define IRQSTATEN_TC		(0x00000002)
 #define IRQSTATEN_CC		(0x00000001)
 
+/* eSDHC control register */
 #define ESDHCCTL		0x0002e40c
 #define ESDHCCTL_PCS		(0x00080000)
+#define ESDHCCTL_FAF		(0x00040000)
 
 #define PRSSTAT			0x0002e024
 #define PRSSTAT_DAT0		(0x01000000)
@@ -95,6 +97,10 @@
 #define PROCTL_DTW_4		0x00000002
 #define PROCTL_DTW_8		0x00000004
 #define PROCTL_D3CD		0x00000008
+#define PROCTL_DMAS_MASK	0x00000300
+#define PROCTL_DMAS_SDMA	0x00000000
+#define PROCTL_DMAS_ADMA1	0x00000100
+#define PROCTL_DMAS_ADMA2	0x00000300
 #define PROCTL_VOLT_SEL		0x00000400
 
 #define CMDARG			0x0002e008
@@ -154,6 +160,12 @@
 #define BLKATTR_SIZE(x)	(x & 0x1fff)
 #define MAX_BLK_CNT	0x7fff	/* so malloc will have enough room with 32M */
 
+/* Auto CMD error status register / system control 2 register */
+#define EXECUTE_TUNING		0x00400000
+#define SMPCLKSEL		0x00800000
+#define UHSM_MASK		0x00070000
+#define UHSM_SDR104_HS200	0x00030000
+
 /* Host controller capabilities register */
 #define HOSTCAPBLT_VS18		0x04000000
 #define HOSTCAPBLT_VS30		0x02000000
@@ -162,6 +174,33 @@
 #define HOSTCAPBLT_DMAS		0x00400000
 #define HOSTCAPBLT_HSS		0x00200000
 
+/* Tuning block control register */
+#define TBCTL_TB_EN		0x00000004
+#define HS400_MODE		0x00000010
+#define HS400_WNDW_ADJUST	0x00000040
+
+/* SD clock control register */
+#define CMD_CLK_CTL		0x00008000
+
+/* SD timing control register */
+#define FLW_CTL_BG		0x00008000
+
+/* DLL config 0 register */
+#define DLL_ENABLE		0x80000000
+#define DLL_FREQ_SEL		0x08000000
+
+#define MAX_TUNING_LOOP		40
+
+#define HOSTVER_VENDOR(x)	(((x) >> 8) & 0xff)
+#define VENDOR_V_10		0x00
+#define VENDOR_V_20		0x10
+#define VENDOR_V_21		0x11
+#define VENDOR_V_22		0x12
+#define VENDOR_V_23		0x13
+#define VENDOR_V_30		0x20
+#define VENDOR_V_31		0x21
+#define VENDOR_V_32		0x22
+
 struct fsl_esdhc_cfg {
 	phys_addr_t esdhc_base;
 	u32	sdhc_clk;
@@ -203,10 +242,6 @@ struct fsl_esdhc_cfg {
 int fsl_esdhc_mmc_init(struct bd_info *bis);
 int fsl_esdhc_initialize(struct bd_info *bis, struct fsl_esdhc_cfg *cfg);
 void fdt_fixup_esdhc(void *blob, struct bd_info *bd);
-#ifdef MMC_SUPPORTS_TUNING
-static inline int fsl_esdhc_execute_tuning(struct udevice *dev,
-					   uint32_t opcode) {return 0; }
-#endif
 #else
 static inline int fsl_esdhc_mmc_init(struct bd_info *bis) { return -ENOSYS; }
 static inline void fdt_fixup_esdhc(void *blob, struct bd_info *bd) {}
diff --git a/include/mmc.h b/include/mmc.h
index 75bcaaf6b3..ac7b54f1a7 100644
--- a/include/mmc.h
+++ b/include/mmc.h
@@ -422,6 +422,14 @@ struct dm_mmc_ops {
 	 */
 	int (*deferred_probe)(struct udevice *dev);
 	/**
+	 * reinit() - Re-initialization to clear old configuration for
+	 * mmc rescan.
+	 *
+	 * @dev:	Device to reinit
+	 * @return 0 if Ok, -ve if error
+	 */
+	int (*reinit)(struct udevice *dev);
+	/**
 	 * send_cmd() - Send a command to the MMC device
 	 *
 	 * @dev:	Device to receive the command
@@ -505,6 +513,14 @@ struct dm_mmc_ops {
 	 * @return maximum number of blocks for this transfer
 	 */
 	int (*get_b_max)(struct udevice *dev, void *dst, lbaint_t blkcnt);
+
+	/**
+	 * hs400_prepare_ddr - prepare to switch to DDR mode
+	 *
+	 * @dev:	Device to check
+	 * @return 0 if success, -ve on error
+	 */
+	int (*hs400_prepare_ddr)(struct udevice *dev);
 };
 
 #define mmc_get_ops(dev)        ((struct dm_mmc_ops *)(dev)->driver->ops)
@@ -518,6 +534,7 @@ int dm_mmc_execute_tuning(struct udevice *dev, uint opcode);
 int dm_mmc_wait_dat0(struct udevice *dev, int state, int timeout_us);
 int dm_mmc_host_power_cycle(struct udevice *dev);
 int dm_mmc_deferred_probe(struct udevice *dev);
+int dm_mmc_reinit(struct udevice *dev);
 int dm_mmc_get_b_max(struct udevice *dev, void *dst, lbaint_t blkcnt);
 
 /* Transition functions for compatibility */
@@ -529,8 +546,9 @@ int mmc_wait_dat0(struct mmc *mmc, int state, int timeout_us);
 int mmc_set_enhanced_strobe(struct mmc *mmc);
 int mmc_host_power_cycle(struct mmc *mmc);
 int mmc_deferred_probe(struct mmc *mmc);
+int mmc_reinit(struct mmc *mmc);
 int mmc_get_b_max(struct mmc *mmc, void *dst, lbaint_t blkcnt);
-
+int mmc_hs400_prepare_ddr(struct mmc *mmc);
 #else
 struct mmc_ops {
 	int (*send_cmd)(struct mmc *mmc,
@@ -542,6 +560,11 @@ struct mmc_ops {
 	int (*host_power_cycle)(struct mmc *mmc);
 	int (*get_b_max)(struct mmc *mmc, void *dst, lbaint_t blkcnt);
 };
+
+static inline int mmc_hs400_prepare_ddr(struct mmc *mmc)
+{
+	return 0;
+}
 #endif
 
 struct mmc_config {
@@ -697,6 +720,7 @@ struct mmc {
 				  * accessing the boot partitions
 				  */
 	u32 quirks;
+	u8 hs400_tuning;
 };
 
 struct mmc_hwpart_conf {
diff --git a/include/sdhci.h b/include/sdhci.h
index 94fc3ed56a..f69d5f81fb 100644
--- a/include/sdhci.h
+++ b/include/sdhci.h
@@ -271,7 +271,6 @@ struct sdhci_ops {
 	int	(*deferred_probe)(struct sdhci_host *host);
 };
 
-#if CONFIG_IS_ENABLED(MMC_SDHCI_ADMA)
 #define ADMA_MAX_LEN	65532
 #ifdef CONFIG_DMA_ADDR_T_64BIT
 #define ADMA_DESC_LEN	16
@@ -302,7 +301,7 @@ struct sdhci_adma_desc {
 	u32 addr_hi;
 #endif
 } __packed;
-#endif
+
 struct sdhci_host {
 	const char *name;
 	void *ioaddr;
@@ -334,7 +333,6 @@ struct sdhci_host {
 	dma_addr_t adma_addr;
 #if CONFIG_IS_ENABLED(MMC_SDHCI_ADMA)
 	struct sdhci_adma_desc *adma_desc_table;
-	uint desc_slot;
 #endif
 };
 
@@ -496,4 +494,8 @@ extern const struct dm_mmc_ops sdhci_ops;
 #else
 #endif
 
+struct sdhci_adma_desc *sdhci_adma_init(void);
+void sdhci_prepare_adma_table(struct sdhci_adma_desc *table,
+			      struct mmc_data *data, dma_addr_t addr);
+
 #endif /* __SDHCI_HW_H */