Merge branch 'master' of git://git.denx.de/u-boot-video

[platform/kernel/u-boot.git] / include / spi.h

diff --git a/include/spi.h b/include/spi.h
index 7744c2e..60e85db 100644 (file)
--- a/include/spi.h
+++ b/include/spi.h
@@ -24,6 +24,8 @@
 #ifndef _SPI_H_
 #define _SPI_H_
 
+/* Controller-specific definitions: */
+
 /* SPI mode flags */
 #define        SPI_CPHA        0x01                    /* clock phase */
 #define        SPI_CPOL        0x02                    /* clock polarity */
@@ -167,6 +169,14 @@ void spi_cs_activate(struct spi_slave *slave);
 void spi_cs_deactivate(struct spi_slave *slave);
 
 /*-----------------------------------------------------------------------
+ * Set transfer speed.
+ * This sets a new speed to be applied for next spi_xfer().
+ *   slave:    The SPI slave
+ *   hz:       The transfer speed
+ */
+void spi_set_speed(struct spi_slave *slave, uint hz);
+
+/*-----------------------------------------------------------------------
  * Write 8 bits, then read 8 bits.
  *   slave:    The SPI slave we're communicating with
  *   byte:     Byte to be written