3 files changed, 6 insertions, 0 deletions

diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index 52b5dc914a8c..ca7007fdb399 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -136,6 +136,7 @@ struct mmc_host_ops {
         void    (*init_card)(struct mmc_host *host, struct mmc_card *card);
 
         int     (*start_signal_voltage_switch)(struct mmc_host *host, struct mmc_ios *ios);
+        int     (*execute_tuning)(struct mmc_host *host);
 };
 
 struct mmc_card;
diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h
index 373b2bf5e5b5..9fa5a73f393d 100644
--- a/include/linux/mmc/mmc.h
+++ b/include/linux/mmc/mmc.h
@@ -50,6 +50,7 @@
 #define MMC_SET_BLOCKLEN         16   /* ac   [31:0] block len   R1  */
 #define MMC_READ_SINGLE_BLOCK    17   /* adtc [31:0] data addr   R1  */
 #define MMC_READ_MULTIPLE_BLOCK  18   /* adtc [31:0] data addr   R1  */
+#define MMC_SEND_TUNING_BLOCK    19   /* adtc                    R1  */
 
   /* class 3 */
 #define MMC_WRITE_DAT_UNTIL_STOP 20   /* adtc [31:0] data addr   R1  */
diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h
index 92e1c9ad126c..b74c8530e959 100644
--- a/include/linux/mmc/sdhci.h
+++ b/include/linux/mmc/sdhci.h
@@ -111,6 +111,7 @@ struct sdhci_host {
 #define SDHCI_USE_ADMA          (1<<1)  /* Host is ADMA capable */
 #define SDHCI_REQ_USE_DMA       (1<<2)  /* Use DMA for this req. */
 #define SDHCI_DEVICE_DEAD       (1<<3)  /* Device unresponsive */
+#define SDHCI_SDR50_NEEDS_TUNING (1<<4) /* SDR50 needs tuning */
 
         unsigned int version;   /* SDHCI spec. version */
 
@@ -147,6 +148,9 @@ struct sdhci_host {
         unsigned int            ocr_avail_sd;
         unsigned int            ocr_avail_mmc;
 
+        wait_queue_head_t       buf_ready_int;  /* Waitqueue for Buffer Read Ready interrupt */
+        unsigned int            tuning_done;    /* Condition flag set when CMD19 succeeds */
+
         unsigned long private[0] ____cacheline_aligned;
 };
 #endif /* __SDHCI_H */