X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=include%2Fspi-mem.h;h=32ffdc2e0f963c239e3e6a70c5ba1880823ad78a;hb=ac8b36938a74d87a272e730998d03fe15aa9f503;hp=8be3e2bf6b5fb5a6e592b7643162405529178bc6;hpb=e14d5762de1db84cae6d84d59c1e40f3eb26c4c3;p=platform%2Fkernel%2Fu-boot.git

diff --git a/include/spi-mem.h b/include/spi-mem.h
index 8be3e2b..32ffdc2 100644
--- a/include/spi-mem.h
+++ b/include/spi-mem.h
@@ -17,6 +17,7 @@ struct udevice;
 	{							\
 		.buswidth = __buswidth,				\
 		.opcode = __opcode,				\
+		.nbytes = 1,					\
 	}
 
 #define SPI_MEM_OP_ADDR(__nbytes, __val, __buswidth)		\
@@ -69,8 +70,11 @@ enum spi_mem_data_dir {
 
 /**
  * struct spi_mem_op - describes a SPI memory operation
+ * @cmd.nbytes: number of opcode bytes (only 1 or 2 are valid). The opcode is
+ *		sent MSB-first.
  * @cmd.buswidth: number of IO lines used to transmit the command
  * @cmd.opcode: operation opcode
+ * @cmd.dtr: whether the command opcode should be sent in DTR mode or not
  * @addr.nbytes: number of address bytes to send. Can be zero if the operation
  *		 does not need to send an address
  * @addr.buswidth: number of IO lines used to transmit the address cycles
@@ -78,33 +82,41 @@ enum spi_mem_data_dir {
  *	      Note that only @addr.nbytes are taken into account in this
  *	      address value, so users should make sure the value fits in the
  *	      assigned number of bytes.
+ * @addr.dtr: whether the address should be sent in DTR mode or not
  * @dummy.nbytes: number of dummy bytes to send after an opcode or address. Can
  *		  be zero if the operation does not require dummy bytes
  * @dummy.buswidth: number of IO lanes used to transmit the dummy bytes
+ * @dummy.dtr: whether the dummy bytes should be sent in DTR mode or not
  * @data.buswidth: number of IO lanes used to send/receive the data
+ * @data.dtr: whether the data should be sent in DTR mode or not
  * @data.dir: direction of the transfer
  * @data.buf.in: input buffer
  * @data.buf.out: output buffer
  */
 struct spi_mem_op {
 	struct {
+		u8 nbytes;
 		u8 buswidth;
-		u8 opcode;
+		u8 dtr : 1;
+		u16 opcode;
 	} cmd;
 
 	struct {
 		u8 nbytes;
 		u8 buswidth;
+		u8 dtr : 1;
 		u64 val;
 	} addr;
 
 	struct {
 		u8 nbytes;
 		u8 buswidth;
+		u8 dtr : 1;
 	} dummy;
 
 	struct {
 		u8 buswidth;
+		u8 dtr : 1;
 		enum spi_mem_data_dir dir;
 		unsigned int nbytes;
 		/* buf.{in,out} must be DMA-able. */
@@ -222,7 +234,7 @@ spi_controller_dma_map_mem_op_data(struct spi_controller *ctlr,
 				   const struct spi_mem_op *op,
 				   struct sg_table *sg)
 {
-	return -ENOTSUPP;
+	return -ENOSYS;
 }
 
 static inline void
@@ -237,6 +249,11 @@ spi_controller_dma_unmap_mem_op_data(struct spi_controller *ctlr,
 int spi_mem_adjust_op_size(struct spi_slave *slave, struct spi_mem_op *op);
 
 bool spi_mem_supports_op(struct spi_slave *slave, const struct spi_mem_op *op);
+bool spi_mem_dtr_supports_op(struct spi_slave *slave,
+			     const struct spi_mem_op *op);
+
+bool spi_mem_default_supports_op(struct spi_slave *slave,
+				 const struct spi_mem_op *op);
 
 int spi_mem_exec_op(struct spi_slave *slave, const struct spi_mem_op *op);