#define SPI_XFER_MMAP 0x08 /* Memory Mapped start */
#define SPI_XFER_MMAP_END 0x10 /* Memory Mapped End */
#define SPI_XFER_ONCE (SPI_XFER_BEGIN | SPI_XFER_END)
+#define SPI_XFER_U_PAGE (1 << 5)
+
+/* SPI TX operation modes */
+#define SPI_OPM_TX_QPP 1 << 0
+
+/* SPI RX operation modes */
+#define SPI_OPM_RX_AS 1 << 0
+#define SPI_OPM_RX_DOUT 1 << 1
+#define SPI_OPM_RX_DIO 1 << 2
+#define SPI_OPM_RX_QOF 1 << 3
+#define SPI_OPM_RX_QIOF 1 << 4
+#define SPI_OPM_RX_EXTN SPI_OPM_RX_AS | SPI_OPM_RX_DOUT | \
+ SPI_OPM_RX_DIO | SPI_OPM_RX_QOF | \
+ SPI_OPM_RX_QIOF
+
+/* SPI bus connection options */
+#define SPI_CONN_DUAL_SHARED 1 << 0
+#define SPI_CONN_DUAL_SEPARATED 1 << 1
/* Header byte that marks the start of the message */
#define SPI_PREAMBLE_END_BYTE 0xec
*
* @bus: ID of the bus that the slave is attached to.
* @cs: ID of the chip select connected to the slave.
+ * @op_mode_rx: SPI RX operation mode.
+ * @op_mode_tx: SPI TX operation mode.
* @wordlen: Size of SPI word in number of bits
* @max_write_size: If non-zero, the maximum number of bytes which can
* be written at once, excluding command bytes.
* @memory_map: Address of read-only SPI flash access.
+ * @option: Varies SPI bus options - separate, shared bus.
+ * @flags: Indication of SPI flags.
*/
struct spi_slave {
unsigned int bus;
unsigned int cs;
+ u8 op_mode_rx;
+ u8 op_mode_tx;
unsigned int wordlen;
unsigned int max_write_size;
void *memory_map;
+ u8 option;
+ u8 flags;
};
/**
* spi_free_slave() to free it later.
*
* @param blob: Device tree blob
- * @param node: SPI peripheral node to use
- * @param cs: Chip select to use
- * @param max_hz: Maximum SCK rate in Hz (0 for default)
- * @param mode: Clock polarity, clock phase and other parameters
+ * @param slave_node: Slave node to use
+ * @param spi_node: SPI peripheral node to use
* @return pointer to new spi_slave structure
*/
-struct spi_slave *spi_setup_slave_fdt(const void *blob, int node,
- unsigned int cs, unsigned int max_hz, unsigned int mode);
+struct spi_slave *spi_setup_slave_fdt(const void *blob, int slave_node,
+ int spi_node);
+
+/**
+ * spi_base_setup_slave_fdt() - helper function to set up a SPI slace
+ *
+ * This decodes SPI properties from the slave node to determine the
+ * chip select and SPI parameters.
+ *
+ * @blob: Device tree blob
+ * @busnum: Bus number to use
+ * @node: Device tree node for the SPI bus
+ */
+struct spi_slave *spi_base_setup_slave_fdt(const void *blob, int busnum,
+ int node);
#endif /* _SPI_H_ */