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-rw-r--r--src/include/spi_flash.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/src/include/spi_flash.h b/src/include/spi_flash.h
index 3a6df9ab1f..f7f3b3dbdf 100644
--- a/src/include/spi_flash.h
+++ b/src/include/spi_flash.h
@@ -125,4 +125,18 @@ const struct spi_flash *boot_device_spi_flash(void);
int spi_flash_ctrlr_protect_region(const struct spi_flash *flash,
const struct region *region);
+/*
+ * This function is provided to support spi flash command-response transactions.
+ * Only 2 vectors are supported and the 'func' is called with appropriate
+ * write and read buffers together. This can be used for chipsets that
+ * have specific spi flash controllers that don't conform to the normal
+ * spi xfer API because they are specialized controllers and not generic.
+ *
+ * Returns 0 on success and non-zero on failure.
+ */
+int spi_flash_vector_helper(const struct spi_slave *slave,
+ struct spi_op vectors[], size_t count,
+ int (*func)(const struct spi_slave *slave, const void *dout,
+ size_t bytesout, void *din, size_t bytesin));
+
#endif /* _SPI_FLASH_H_ */