Merge branch 'next' of git://git.denx.de/u-boot-sh

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

diff --git a/include/spi.h b/include/spi.h
index 18a0312..2b4929f 100644 (file)
--- a/include/spi.h
+++ b/include/spi.h
@@ -30,6 +30,8 @@
 #define SPI_RX_SLOW    BIT(11)                 /* receive with 1 wire slow */
 #define SPI_RX_DUAL    BIT(12)                 /* receive with 2 wires */
 #define SPI_RX_QUAD    BIT(13)                 /* receive with 4 wires */
+#define SPI_TX_OCTAL   BIT(14)                 /* transmit with 8 wires */
+#define SPI_RX_OCTAL   BIT(15)                 /* receive with 8 wires */
 
 /* Header byte that marks the start of the message */
 #define SPI_PREAMBLE_END_BYTE  0xec
@@ -65,6 +67,39 @@ struct dm_spi_slave_platdata {
 #endif /* CONFIG_DM_SPI */
 
 /**
+ * enum spi_clock_phase - indicates  the clock phase to use for SPI (CPHA)
+ *
+ * @SPI_CLOCK_PHASE_FIRST: Data sampled on the first phase
+ * @SPI_CLOCK_PHASE_SECOND: Data sampled on the second phase
+ */
+enum spi_clock_phase {
+       SPI_CLOCK_PHASE_FIRST,
+       SPI_CLOCK_PHASE_SECOND,
+};
+
+/**
+ * enum spi_wire_mode - indicates the number of wires used for SPI
+ *
+ * @SPI_4_WIRE_MODE: Normal bidirectional mode with MOSI and MISO
+ * @SPI_3_WIRE_MODE: Unidirectional version with a single data line SISO
+ */
+enum spi_wire_mode {
+       SPI_4_WIRE_MODE,
+       SPI_3_WIRE_MODE,
+};
+
+/**
+ * enum spi_polarity - indicates the polarity of the SPI bus (CPOL)
+ *
+ * @SPI_POLARITY_LOW: Clock is low in idle state
+ * @SPI_POLARITY_HIGH: Clock is high in idle state
+ */
+enum spi_polarity {
+       SPI_POLARITY_LOW,
+       SPI_POLARITY_HIGH,
+};
+
+/**
  * struct spi_slave - Representation of a SPI slave
  *
  * For driver model this is the per-child data used by the SPI bus. It can