Merge git://git.denx.de/u-boot-mmc

1 files changed, 205 insertions, 7 deletions

diff --git a/include/mmc.h b/include/mmc.h
index 010ebe048c..a46eaed746 100644
--- a/include/mmc.h
+++ b/include/mmc.h
@@ -15,6 +15,13 @@
 #include <linux/compiler.h>
 #include <part.h>
 
+#if CONFIG_IS_ENABLED(MMC_HS200_SUPPORT)
+#define MMC_SUPPORTS_TUNING
+#endif
+#if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT)
+#define MMC_SUPPORTS_TUNING
+#endif
+
 /* SD/MMC version bits; 8 flags, 8 major, 8 minor, 8 change */
 #define SD_VERSION_SD	(1U << 31)
 #define MMC_VERSION_MMC	(1U << 30)
@@ -52,12 +59,17 @@
 #define MMC_VERSION_5_0		MAKE_MMC_VERSION(5, 0, 0)
 #define MMC_VERSION_5_1		MAKE_MMC_VERSION(5, 1, 0)
 
-#define MMC_MODE_HS		(1 << 0)
-#define MMC_MODE_HS_52MHz	(1 << 1)
-#define MMC_MODE_4BIT		(1 << 2)
-#define MMC_MODE_8BIT		(1 << 3)
-#define MMC_MODE_SPI		(1 << 4)
-#define MMC_MODE_DDR_52MHz	(1 << 5)
+#define MMC_CAP(mode)		(1 << mode)
+#define MMC_MODE_HS		(MMC_CAP(MMC_HS) | MMC_CAP(SD_HS))
+#define MMC_MODE_HS_52MHz	MMC_CAP(MMC_HS_52)
+#define MMC_MODE_DDR_52MHz	MMC_CAP(MMC_DDR_52)
+#define MMC_MODE_HS200		MMC_CAP(MMC_HS_200)
+
+#define MMC_MODE_8BIT		BIT(30)
+#define MMC_MODE_4BIT		BIT(29)
+#define MMC_MODE_1BIT		BIT(28)
+#define MMC_MODE_SPI		BIT(27)
+
 
 #define SD_DATA_4BIT	0x00040000
 
@@ -82,6 +94,8 @@
 #define MMC_CMD_SET_BLOCKLEN		16
 #define MMC_CMD_READ_SINGLE_BLOCK	17
 #define MMC_CMD_READ_MULTIPLE_BLOCK	18
+#define MMC_CMD_SEND_TUNING_BLOCK		19
+#define MMC_CMD_SEND_TUNING_BLOCK_HS200	21
 #define MMC_CMD_SET_BLOCK_COUNT         23
 #define MMC_CMD_WRITE_SINGLE_BLOCK	24
 #define MMC_CMD_WRITE_MULTIPLE_BLOCK	25
@@ -109,12 +123,34 @@
 #define SD_CMD_APP_SEND_OP_COND		41
 #define SD_CMD_APP_SEND_SCR		51
 
+static inline bool mmc_is_tuning_cmd(uint cmdidx)
+{
+	if ((cmdidx == MMC_CMD_SEND_TUNING_BLOCK_HS200) ||
+	    (cmdidx == MMC_CMD_SEND_TUNING_BLOCK))
+		return true;
+	return false;
+}
+
 /* SCR definitions in different words */
 #define SD_HIGHSPEED_BUSY	0x00020000
 #define SD_HIGHSPEED_SUPPORTED	0x00020000
 
+#define UHS_SDR12_BUS_SPEED	0
+#define HIGH_SPEED_BUS_SPEED	1
+#define UHS_SDR25_BUS_SPEED	1
+#define UHS_SDR50_BUS_SPEED	2
+#define UHS_SDR104_BUS_SPEED	3
+#define UHS_DDR50_BUS_SPEED	4
+
+#define SD_MODE_UHS_SDR12	BIT(UHS_SDR12_BUS_SPEED)
+#define SD_MODE_UHS_SDR25	BIT(UHS_SDR25_BUS_SPEED)
+#define SD_MODE_UHS_SDR50	BIT(UHS_SDR50_BUS_SPEED)
+#define SD_MODE_UHS_SDR104	BIT(UHS_SDR104_BUS_SPEED)
+#define SD_MODE_UHS_DDR50	BIT(UHS_DDR50_BUS_SPEED)
+
 #define OCR_BUSY		0x80000000
 #define OCR_HCS			0x40000000
+#define OCR_S18R		0x1000000
 #define OCR_VOLTAGE_MASK	0x007FFF80
 #define OCR_ACCESS_MODE		0x60000000
 
@@ -206,11 +242,23 @@
 #define EXT_CSD_CARD_TYPE_DDR_52	(EXT_CSD_CARD_TYPE_DDR_1_8V \
 					| EXT_CSD_CARD_TYPE_DDR_1_2V)
 
+#define EXT_CSD_CARD_TYPE_HS200_1_8V	BIT(4)	/* Card can run at 200MHz */
+						/* SDR mode @1.8V I/O */
+#define EXT_CSD_CARD_TYPE_HS200_1_2V	BIT(5)	/* Card can run at 200MHz */
+						/* SDR mode @1.2V I/O */
+#define EXT_CSD_CARD_TYPE_HS200		(EXT_CSD_CARD_TYPE_HS200_1_8V | \
+					 EXT_CSD_CARD_TYPE_HS200_1_2V)
+
 #define EXT_CSD_BUS_WIDTH_1	0	/* Card is in 1 bit mode */
 #define EXT_CSD_BUS_WIDTH_4	1	/* Card is in 4 bit mode */
 #define EXT_CSD_BUS_WIDTH_8	2	/* Card is in 8 bit mode */
 #define EXT_CSD_DDR_BUS_WIDTH_4	5	/* Card is in 4 bit DDR mode */
 #define EXT_CSD_DDR_BUS_WIDTH_8	6	/* Card is in 8 bit DDR mode */
+#define EXT_CSD_DDR_FLAG	BIT(2)	/* Flag for DDR mode */
+
+#define EXT_CSD_TIMING_LEGACY	0	/* no high speed */
+#define EXT_CSD_TIMING_HS	1	/* HS */
+#define EXT_CSD_TIMING_HS200	2	/* HS200 */
 
 #define EXT_CSD_BOOT_ACK_ENABLE			(1 << 6)
 #define EXT_CSD_BOOT_PARTITION_ENABLE		(1 << 3)
@@ -265,6 +313,20 @@
 #define ENHNCD_SUPPORT		(0x2)
 #define PART_ENH_ATTRIB		(0x1f)
 
+#define MMC_QUIRK_RETRY_SEND_CID	BIT(0)
+#define MMC_QUIRK_RETRY_SET_BLOCKLEN	BIT(1)
+
+enum mmc_voltage {
+	MMC_SIGNAL_VOLTAGE_000 = 0,
+	MMC_SIGNAL_VOLTAGE_120 = 1,
+	MMC_SIGNAL_VOLTAGE_180 = 2,
+	MMC_SIGNAL_VOLTAGE_330 = 4,
+};
+
+#define MMC_ALL_SIGNAL_VOLTAGE (MMC_SIGNAL_VOLTAGE_120 |\
+				MMC_SIGNAL_VOLTAGE_180 |\
+				MMC_SIGNAL_VOLTAGE_330)
+
 /* Maximum block size for MMC */
 #define MMC_MAX_BLOCK_LEN	512
 
@@ -347,6 +409,14 @@ struct dm_mmc_ops {
 	int (*set_ios)(struct udevice *dev);
 
 	/**
+	 * send_init_stream() - send the initialization stream: 74 clock cycles
+	 * This is used after power up before sending the first command
+	 *
+	 * @dev:	Device to update
+	 */
+	void (*send_init_stream)(struct udevice *dev);
+
+	/**
 	 * get_cd() - See whether a card is present
 	 *
 	 * @dev:	Device to check
@@ -361,6 +431,30 @@ struct dm_mmc_ops {
 	 * @return 0 if write-enabled, 1 if write-protected, -ve on error
 	 */
 	int (*get_wp)(struct udevice *dev);
+
+#ifdef MMC_SUPPORTS_TUNING
+	/**
+	 * execute_tuning() - Start the tuning process
+	 *
+	 * @dev:	Device to start the tuning
+	 * @opcode:	Command opcode to send
+	 * @return 0 if OK, -ve on error
+	 */
+	int (*execute_tuning)(struct udevice *dev, uint opcode);
+#endif
+
+#if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT)
+	/**
+	 * wait_dat0() - wait until dat0 is in the target state
+	 *		(CLK must be running during the wait)
+	 *
+	 * @dev:	Device to check
+	 * @state:	target state
+	 * @timeout:	timeout in us
+	 * @return 0 if dat0 is in the target state, -ve on error
+	 */
+	int (*wait_dat0)(struct udevice *dev, int state, int timeout);
+#endif
 };
 
 #define mmc_get_ops(dev)        ((struct dm_mmc_ops *)(dev)->driver->ops)
@@ -368,13 +462,19 @@ struct dm_mmc_ops {
 int dm_mmc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
 		    struct mmc_data *data);
 int dm_mmc_set_ios(struct udevice *dev);
+void dm_mmc_send_init_stream(struct udevice *dev);
 int dm_mmc_get_cd(struct udevice *dev);
 int dm_mmc_get_wp(struct udevice *dev);
+int dm_mmc_execute_tuning(struct udevice *dev, uint opcode);
+int dm_mmc_wait_dat0(struct udevice *dev, int state, int timeout);
 
 /* Transition functions for compatibility */
 int mmc_set_ios(struct mmc *mmc);
+void mmc_send_init_stream(struct mmc *mmc);
 int mmc_getcd(struct mmc *mmc);
 int mmc_getwp(struct mmc *mmc);
+int mmc_execute_tuning(struct mmc *mmc, uint opcode);
+int mmc_wait_dat0(struct mmc *mmc, int state, int timeout);
 
 #else
 struct mmc_ops {
@@ -406,6 +506,50 @@ struct sd_ssr {
 	unsigned int erase_offset;	/* In milliseconds */
 };
 
+enum bus_mode {
+	MMC_LEGACY,
+	SD_LEGACY,
+	MMC_HS,
+	SD_HS,
+	MMC_HS_52,
+	MMC_DDR_52,
+	UHS_SDR12,
+	UHS_SDR25,
+	UHS_SDR50,
+	UHS_DDR50,
+	UHS_SDR104,
+	MMC_HS_200,
+	MMC_MODES_END
+};
+
+const char *mmc_mode_name(enum bus_mode mode);
+void mmc_dump_capabilities(const char *text, uint caps);
+
+static inline bool mmc_is_mode_ddr(enum bus_mode mode)
+{
+	if (mode == MMC_DDR_52)
+		return true;
+#if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT)
+	else if (mode == UHS_DDR50)
+		return true;
+#endif
+	else
+		return false;
+}
+
+#define UHS_CAPS (MMC_CAP(UHS_SDR12) | MMC_CAP(UHS_SDR25) | \
+		  MMC_CAP(UHS_SDR50) | MMC_CAP(UHS_SDR104) | \
+		  MMC_CAP(UHS_DDR50))
+
+static inline bool supports_uhs(uint caps)
+{
+#if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT)
+	return (caps & UHS_CAPS) ? true : false;
+#else
+	return false;
+#endif
+}
+
 /*
  * With CONFIG_DM_MMC enabled, struct mmc can be accessed from the MMC device
  * with mmc_get_mmc_dev().
@@ -421,9 +565,12 @@ struct mmc {
 	void *priv;
 	uint has_init;
 	int high_capacity;
+	bool clk_disable; /* true if the clock can be turned off */
 	uint bus_width;
 	uint clock;
+	enum mmc_voltage signal_voltage;
 	uint card_caps;
+	uint host_caps;
 	uint ocr;
 	uint dsr;
 	uint dsr_imp;
@@ -436,18 +583,27 @@ struct mmc {
 	u8 wr_rel_set;
 	u8 part_config;
 	uint tran_speed;
+	uint legacy_speed; /* speed for the legacy mode provided by the card */
 	uint read_bl_len;
+#if CONFIG_IS_ENABLED(MMC_WRITE)
 	uint write_bl_len;
 	uint erase_grp_size;	/* in 512-byte sectors */
+#endif
+#if CONFIG_IS_ENABLED(MMC_HW_PARTITIONING)
 	uint hc_wp_grp_size;	/* in 512-byte sectors */
+#endif
+#if CONFIG_IS_ENABLED(MMC_WRITE)
 	struct sd_ssr	ssr;	/* SD status register */
+#endif
 	u64 capacity;
 	u64 capacity_user;
 	u64 capacity_boot;
 	u64 capacity_rpmb;
 	u64 capacity_gp[4];
+#ifndef CONFIG_SPL_BUILD
 	u64 enh_user_start;
 	u64 enh_user_size;
+#endif
 #if !CONFIG_IS_ENABLED(BLK)
 	struct blk_desc block_dev;
 #endif
@@ -457,7 +613,21 @@ struct mmc {
 	int ddr_mode;
 #if CONFIG_IS_ENABLED(DM_MMC)
 	struct udevice *dev;	/* Device for this MMC controller */
+#if CONFIG_IS_ENABLED(DM_REGULATOR)
+	struct udevice *vmmc_supply;	/* Main voltage regulator (Vcc)*/
+	struct udevice *vqmmc_supply;	/* IO voltage regulator (Vccq)*/
 #endif
+#endif
+	u8 *ext_csd;
+	u32 cardtype;		/* cardtype read from the MMC */
+	enum mmc_voltage current_voltage;
+	enum bus_mode selected_mode; /* mode currently used */
+	enum bus_mode best_mode; /* best mode is the supported mode with the
+				  * highest bandwidth. It may not always be the
+				  * operating mode due to limitations when
+				  * accessing the boot partitions
+				  */
+	u32 quirks;
 };
 
 struct mmc_hwpart_conf {
@@ -507,8 +677,36 @@ void mmc_destroy(struct mmc *mmc);
 int mmc_unbind(struct udevice *dev);
 int mmc_initialize(bd_t *bis);
 int mmc_init(struct mmc *mmc);
+int mmc_send_tuning(struct mmc *mmc, u32 opcode, int *cmd_error);
+
+/**
+ * mmc_of_parse() - Parse the device tree to get the capabilities of the host
+ *
+ * @dev:	MMC device
+ * @cfg:	MMC configuration
+ * @return 0 if OK, -ve on error
+ */
+int mmc_of_parse(struct udevice *dev, struct mmc_config *cfg);
+
 int mmc_read(struct mmc *mmc, u64 src, uchar *dst, int size);
-void mmc_set_clock(struct mmc *mmc, uint clock);
+
+/**
+ * mmc_voltage_to_mv() - Convert a mmc_voltage in mV
+ *
+ * @voltage:	The mmc_voltage to convert
+ * @return the value in mV if OK, -EINVAL on error (invalid mmc_voltage value)
+ */
+int mmc_voltage_to_mv(enum mmc_voltage voltage);
+
+/**
+ * mmc_set_clock() - change the bus clock
+ * @mmc:	MMC struct
+ * @clock:	bus frequency in Hz
+ * @disable:	flag indicating if the clock must on or off
+ * @return 0 if OK, -ve on error
+ */
+int mmc_set_clock(struct mmc *mmc, uint clock, bool disable);
+
 struct mmc *find_mmc_device(int dev_num);
 int mmc_set_dev(int dev_num);
 void print_mmc_devices(char separator);