quoted

quoted

quoted

The spi_nor{} is cloned from the m25p{}.
+	struct spi_nor_xfer_cfg	cfg;
+
+	/* for write_reg */
+	u8			cmd_buf[SPI_NOR_MAX_CMD_SIZE];
+
+	/* the two fundamental primitives */
+	int (*read_xfer)(struct spi_nor *nor, struct spi_nor_xfer_cfg *cfg,
+			 u8 *buf, size_t len);
+	int (*write_xfer)(struct spi_nor *nor, struct spi_nor_xfer_cfg *cfg,
+			  u8 *buf, size_t len);
+
+	int (*read_reg)(struct spi_nor *nor, u8 opcode, u8 *buf, int len);
+	int (*write_reg)(struct spi_nor *nor, u8 opcode, u8 *buf, int len,
+			int write_enable);

Does the vybrid really support accelerated SPI NOR register IO or does it

The vybrid does not support the accelerated SPI NOR register IO.
these hooks are for Lee's driver.

Which one please?

It's not in Mainline yet, but the patches are on the list.

If you search for st_spi_fsm, you'll find them.

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
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