X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=include%2Fdwmmc.h;h=05b0817fe1e1834b10bef69f892bd3fdc3d083c6;hb=02499e4edc885b3064c76f8b6e84d9ff8d7a6b4b;hp=7a7555a73ab2c7a5291b5b2f5ee5e263998d4eae;hpb=7a1af7a79bd79ded6a78d0c1afdbc3353669e313;p=u-boot

diff --git a/include/dwmmc.h b/include/dwmmc.h
index 7a7555a73a..05b0817fe1 100644
--- a/include/dwmmc.h
+++ b/include/dwmmc.h
@@ -105,6 +105,8 @@
 
 /* Status Register */
 #define DWMCI_BUSY		(1 << 9)
+#define DWMCI_FIFO_MASK		0x1ff
+#define DWMCI_FIFO_SHIFT	17
 
 /* FIFOTH Register */
 #define MSIZE(x)		((x) << 28)
@@ -163,9 +165,26 @@ struct dwmci_host {
 
 	void (*clksel)(struct dwmci_host *host);
 	void (*board_init)(struct dwmci_host *host);
-	unsigned int (*get_mmc_clk)(struct dwmci_host *host);
+
+	/**
+	 * Get / set a particular MMC clock frequency
+	 *
+	 * This is used to request the current clock frequency of the clock
+	 * that drives the DWMMC peripheral. The caller will then use this
+	 * information to work out the divider it needs to achieve the
+	 * required MMC bus clock frequency. If you want to handle the
+	 * clock external to DWMMC, use @freq to select the frequency and
+	 * return that value too. Then DWMMC will put itself in bypass mode.
+	 *
+	 * @host:	DWMMC host
+	 * @freq:	Frequency the host is trying to achieve
+	 */
+	unsigned int (*get_mmc_clk)(struct dwmci_host *host, uint freq);
 
 	struct mmc_config cfg;
+
+	/* use fifo mode to read and write data */
+	bool fifo_mode;
 };
 
 struct dwmci_idmac {