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@@ -15,6 +15,13 @@
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#include <linux/compiler.h>
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#include <part.h>
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+#if CONFIG_IS_ENABLED(MMC_HS200_SUPPORT)
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+#define MMC_SUPPORTS_TUNING
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+#endif
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+#if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT)
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+#define MMC_SUPPORTS_TUNING
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+#endif
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+
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/* SD/MMC version bits; 8 flags, 8 major, 8 minor, 8 change */
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#define SD_VERSION_SD (1U << 31)
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#define MMC_VERSION_MMC (1U << 30)
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@@ -52,12 +59,17 @@
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#define MMC_VERSION_5_0 MAKE_MMC_VERSION(5, 0, 0)
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#define MMC_VERSION_5_1 MAKE_MMC_VERSION(5, 1, 0)
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-#define MMC_MODE_HS (1 << 0)
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-#define MMC_MODE_HS_52MHz (1 << 1)
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-#define MMC_MODE_4BIT (1 << 2)
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-#define MMC_MODE_8BIT (1 << 3)
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-#define MMC_MODE_SPI (1 << 4)
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-#define MMC_MODE_DDR_52MHz (1 << 5)
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+#define MMC_CAP(mode) (1 << mode)
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+#define MMC_MODE_HS (MMC_CAP(MMC_HS) | MMC_CAP(SD_HS))
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+#define MMC_MODE_HS_52MHz MMC_CAP(MMC_HS_52)
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+#define MMC_MODE_DDR_52MHz MMC_CAP(MMC_DDR_52)
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+#define MMC_MODE_HS200 MMC_CAP(MMC_HS_200)
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+
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+#define MMC_MODE_8BIT BIT(30)
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+#define MMC_MODE_4BIT BIT(29)
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+#define MMC_MODE_1BIT BIT(28)
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+#define MMC_MODE_SPI BIT(27)
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+
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#define SD_DATA_4BIT 0x00040000
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@@ -82,6 +94,8 @@
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#define MMC_CMD_SET_BLOCKLEN 16
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#define MMC_CMD_READ_SINGLE_BLOCK 17
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#define MMC_CMD_READ_MULTIPLE_BLOCK 18
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+#define MMC_CMD_SEND_TUNING_BLOCK 19
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+#define MMC_CMD_SEND_TUNING_BLOCK_HS200 21
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#define MMC_CMD_SET_BLOCK_COUNT 23
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#define MMC_CMD_WRITE_SINGLE_BLOCK 24
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#define MMC_CMD_WRITE_MULTIPLE_BLOCK 25
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@@ -109,12 +123,34 @@
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#define SD_CMD_APP_SEND_OP_COND 41
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#define SD_CMD_APP_SEND_SCR 51
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+static inline bool mmc_is_tuning_cmd(uint cmdidx)
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+{
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+ if ((cmdidx == MMC_CMD_SEND_TUNING_BLOCK_HS200) ||
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+ (cmdidx == MMC_CMD_SEND_TUNING_BLOCK))
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+ return true;
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+ return false;
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+}
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+
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/* SCR definitions in different words */
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#define SD_HIGHSPEED_BUSY 0x00020000
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#define SD_HIGHSPEED_SUPPORTED 0x00020000
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+#define UHS_SDR12_BUS_SPEED 0
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+#define HIGH_SPEED_BUS_SPEED 1
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+#define UHS_SDR25_BUS_SPEED 1
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+#define UHS_SDR50_BUS_SPEED 2
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+#define UHS_SDR104_BUS_SPEED 3
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+#define UHS_DDR50_BUS_SPEED 4
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+
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+#define SD_MODE_UHS_SDR12 BIT(UHS_SDR12_BUS_SPEED)
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+#define SD_MODE_UHS_SDR25 BIT(UHS_SDR25_BUS_SPEED)
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+#define SD_MODE_UHS_SDR50 BIT(UHS_SDR50_BUS_SPEED)
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+#define SD_MODE_UHS_SDR104 BIT(UHS_SDR104_BUS_SPEED)
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+#define SD_MODE_UHS_DDR50 BIT(UHS_DDR50_BUS_SPEED)
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+
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#define OCR_BUSY 0x80000000
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#define OCR_HCS 0x40000000
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+#define OCR_S18R 0x1000000
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#define OCR_VOLTAGE_MASK 0x007FFF80
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#define OCR_ACCESS_MODE 0x60000000
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@@ -206,11 +242,23 @@
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#define EXT_CSD_CARD_TYPE_DDR_52 (EXT_CSD_CARD_TYPE_DDR_1_8V \
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| EXT_CSD_CARD_TYPE_DDR_1_2V)
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+#define EXT_CSD_CARD_TYPE_HS200_1_8V BIT(4) /* Card can run at 200MHz */
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+ /* SDR mode @1.8V I/O */
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+#define EXT_CSD_CARD_TYPE_HS200_1_2V BIT(5) /* Card can run at 200MHz */
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+ /* SDR mode @1.2V I/O */
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+#define EXT_CSD_CARD_TYPE_HS200 (EXT_CSD_CARD_TYPE_HS200_1_8V | \
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+ EXT_CSD_CARD_TYPE_HS200_1_2V)
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+
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#define EXT_CSD_BUS_WIDTH_1 0 /* Card is in 1 bit mode */
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#define EXT_CSD_BUS_WIDTH_4 1 /* Card is in 4 bit mode */
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#define EXT_CSD_BUS_WIDTH_8 2 /* Card is in 8 bit mode */
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#define EXT_CSD_DDR_BUS_WIDTH_4 5 /* Card is in 4 bit DDR mode */
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#define EXT_CSD_DDR_BUS_WIDTH_8 6 /* Card is in 8 bit DDR mode */
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+#define EXT_CSD_DDR_FLAG BIT(2) /* Flag for DDR mode */
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+
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+#define EXT_CSD_TIMING_LEGACY 0 /* no high speed */
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+#define EXT_CSD_TIMING_HS 1 /* HS */
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+#define EXT_CSD_TIMING_HS200 2 /* HS200 */
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#define EXT_CSD_BOOT_ACK_ENABLE (1 << 6)
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#define EXT_CSD_BOOT_PARTITION_ENABLE (1 << 3)
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@@ -265,6 +313,20 @@
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#define ENHNCD_SUPPORT (0x2)
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#define PART_ENH_ATTRIB (0x1f)
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+#define MMC_QUIRK_RETRY_SEND_CID BIT(0)
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+#define MMC_QUIRK_RETRY_SET_BLOCKLEN BIT(1)
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+
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+enum mmc_voltage {
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+ MMC_SIGNAL_VOLTAGE_000 = 0,
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+ MMC_SIGNAL_VOLTAGE_120 = 1,
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+ MMC_SIGNAL_VOLTAGE_180 = 2,
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+ MMC_SIGNAL_VOLTAGE_330 = 4,
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+};
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+
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+#define MMC_ALL_SIGNAL_VOLTAGE (MMC_SIGNAL_VOLTAGE_120 |\
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+ MMC_SIGNAL_VOLTAGE_180 |\
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+ MMC_SIGNAL_VOLTAGE_330)
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+
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/* Maximum block size for MMC */
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#define MMC_MAX_BLOCK_LEN 512
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@@ -346,6 +408,14 @@ struct dm_mmc_ops {
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*/
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int (*set_ios)(struct udevice *dev);
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+ /**
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+ * send_init_stream() - send the initialization stream: 74 clock cycles
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+ * This is used after power up before sending the first command
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+ *
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+ * @dev: Device to update
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+ */
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+ void (*send_init_stream)(struct udevice *dev);
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+
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/**
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* get_cd() - See whether a card is present
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*
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@@ -361,6 +431,30 @@ struct dm_mmc_ops {
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* @return 0 if write-enabled, 1 if write-protected, -ve on error
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*/
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int (*get_wp)(struct udevice *dev);
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+
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+#ifdef MMC_SUPPORTS_TUNING
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+ /**
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+ * execute_tuning() - Start the tuning process
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+ *
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+ * @dev: Device to start the tuning
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+ * @opcode: Command opcode to send
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+ * @return 0 if OK, -ve on error
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+ */
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+ int (*execute_tuning)(struct udevice *dev, uint opcode);
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+#endif
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+
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+#if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT)
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+ /**
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+ * wait_dat0() - wait until dat0 is in the target state
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+ * (CLK must be running during the wait)
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+ *
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+ * @dev: Device to check
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+ * @state: target state
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+ * @timeout: timeout in us
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+ * @return 0 if dat0 is in the target state, -ve on error
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+ */
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+ int (*wait_dat0)(struct udevice *dev, int state, int timeout);
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+#endif
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};
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#define mmc_get_ops(dev) ((struct dm_mmc_ops *)(dev)->driver->ops)
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@@ -368,13 +462,19 @@ struct dm_mmc_ops {
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int dm_mmc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
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struct mmc_data *data);
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int dm_mmc_set_ios(struct udevice *dev);
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+void dm_mmc_send_init_stream(struct udevice *dev);
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int dm_mmc_get_cd(struct udevice *dev);
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int dm_mmc_get_wp(struct udevice *dev);
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+int dm_mmc_execute_tuning(struct udevice *dev, uint opcode);
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+int dm_mmc_wait_dat0(struct udevice *dev, int state, int timeout);
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/* Transition functions for compatibility */
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int mmc_set_ios(struct mmc *mmc);
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+void mmc_send_init_stream(struct mmc *mmc);
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int mmc_getcd(struct mmc *mmc);
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int mmc_getwp(struct mmc *mmc);
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+int mmc_execute_tuning(struct mmc *mmc, uint opcode);
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+int mmc_wait_dat0(struct mmc *mmc, int state, int timeout);
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#else
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struct mmc_ops {
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@@ -406,6 +506,50 @@ struct sd_ssr {
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unsigned int erase_offset; /* In milliseconds */
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};
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+enum bus_mode {
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+ MMC_LEGACY,
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+ SD_LEGACY,
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+ MMC_HS,
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+ SD_HS,
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+ MMC_HS_52,
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+ MMC_DDR_52,
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+ UHS_SDR12,
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+ UHS_SDR25,
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+ UHS_SDR50,
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+ UHS_DDR50,
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+ UHS_SDR104,
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+ MMC_HS_200,
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+ MMC_MODES_END
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+};
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+
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+const char *mmc_mode_name(enum bus_mode mode);
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+void mmc_dump_capabilities(const char *text, uint caps);
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+
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+static inline bool mmc_is_mode_ddr(enum bus_mode mode)
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+{
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+ if (mode == MMC_DDR_52)
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+ return true;
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+#if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT)
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+ else if (mode == UHS_DDR50)
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+ return true;
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+#endif
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+ else
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+ return false;
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+}
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+
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+#define UHS_CAPS (MMC_CAP(UHS_SDR12) | MMC_CAP(UHS_SDR25) | \
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+ MMC_CAP(UHS_SDR50) | MMC_CAP(UHS_SDR104) | \
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+ MMC_CAP(UHS_DDR50))
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+
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+static inline bool supports_uhs(uint caps)
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+{
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+#if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT)
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+ return (caps & UHS_CAPS) ? true : false;
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+#else
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+ return false;
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+#endif
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+}
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+
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/*
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* With CONFIG_DM_MMC enabled, struct mmc can be accessed from the MMC device
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* with mmc_get_mmc_dev().
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@@ -421,9 +565,12 @@ struct mmc {
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void *priv;
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uint has_init;
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int high_capacity;
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+ bool clk_disable; /* true if the clock can be turned off */
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uint bus_width;
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uint clock;
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+ enum mmc_voltage signal_voltage;
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uint card_caps;
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+ uint host_caps;
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uint ocr;
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uint dsr;
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uint dsr_imp;
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@@ -436,18 +583,27 @@ struct mmc {
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u8 wr_rel_set;
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u8 part_config;
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uint tran_speed;
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+ uint legacy_speed; /* speed for the legacy mode provided by the card */
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uint read_bl_len;
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+#if CONFIG_IS_ENABLED(MMC_WRITE)
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uint write_bl_len;
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uint erase_grp_size; /* in 512-byte sectors */
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+#endif
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+#if CONFIG_IS_ENABLED(MMC_HW_PARTITIONING)
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uint hc_wp_grp_size; /* in 512-byte sectors */
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+#endif
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+#if CONFIG_IS_ENABLED(MMC_WRITE)
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struct sd_ssr ssr; /* SD status register */
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+#endif
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u64 capacity;
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u64 capacity_user;
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u64 capacity_boot;
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u64 capacity_rpmb;
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u64 capacity_gp[4];
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+#ifndef CONFIG_SPL_BUILD
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u64 enh_user_start;
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u64 enh_user_size;
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+#endif
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#if !CONFIG_IS_ENABLED(BLK)
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struct blk_desc block_dev;
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#endif
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@@ -457,7 +613,21 @@ struct mmc {
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int ddr_mode;
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#if CONFIG_IS_ENABLED(DM_MMC)
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struct udevice *dev; /* Device for this MMC controller */
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+#if CONFIG_IS_ENABLED(DM_REGULATOR)
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+ struct udevice *vmmc_supply; /* Main voltage regulator (Vcc)*/
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+ struct udevice *vqmmc_supply; /* IO voltage regulator (Vccq)*/
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#endif
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+#endif
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+ u8 *ext_csd;
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+ u32 cardtype; /* cardtype read from the MMC */
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+ enum mmc_voltage current_voltage;
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+ enum bus_mode selected_mode; /* mode currently used */
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+ enum bus_mode best_mode; /* best mode is the supported mode with the
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+ * highest bandwidth. It may not always be the
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+ * operating mode due to limitations when
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+ * accessing the boot partitions
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+ */
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+ u32 quirks;
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};
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struct mmc_hwpart_conf {
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@@ -507,8 +677,36 @@ void mmc_destroy(struct mmc *mmc);
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int mmc_unbind(struct udevice *dev);
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int mmc_initialize(bd_t *bis);
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int mmc_init(struct mmc *mmc);
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+int mmc_send_tuning(struct mmc *mmc, u32 opcode, int *cmd_error);
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+
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+/**
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+ * mmc_of_parse() - Parse the device tree to get the capabilities of the host
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+ *
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+ * @dev: MMC device
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+ * @cfg: MMC configuration
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+ * @return 0 if OK, -ve on error
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+ */
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+int mmc_of_parse(struct udevice *dev, struct mmc_config *cfg);
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+
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int mmc_read(struct mmc *mmc, u64 src, uchar *dst, int size);
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-void mmc_set_clock(struct mmc *mmc, uint clock);
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+
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+/**
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+ * mmc_voltage_to_mv() - Convert a mmc_voltage in mV
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+ *
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+ * @voltage: The mmc_voltage to convert
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+ * @return the value in mV if OK, -EINVAL on error (invalid mmc_voltage value)
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+ */
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+int mmc_voltage_to_mv(enum mmc_voltage voltage);
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+
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+/**
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+ * mmc_set_clock() - change the bus clock
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+ * @mmc: MMC struct
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+ * @clock: bus frequency in Hz
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+ * @disable: flag indicating if the clock must on or off
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+ * @return 0 if OK, -ve on error
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+ */
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+int mmc_set_clock(struct mmc *mmc, uint clock, bool disable);
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+
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struct mmc *find_mmc_device(int dev_num);
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int mmc_set_dev(int dev_num);
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void print_mmc_devices(char separator);
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Tom Rini