drivers: Add SPI Nor flash support

Add SPI Nor flash support

Change-Id: I0cde3fdb4dcad5bcaf445b3bb48e279332bd28af
Signed-off-by: Sheetal Tigadoli <sheetal.tigadoli@broadcom.com>
diff --git a/include/drivers/brcm/spi_flash.h b/include/drivers/brcm/spi_flash.h
new file mode 100644
index 0000000..bbaaa50
--- /dev/null
+++ b/include/drivers/brcm/spi_flash.h
@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2019-2020, Broadcom
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef SPI_FLASH_H
+#define SPI_FLASH_H
+
+#include <sf.h>
+
+int spi_flash_probe(struct spi_flash *flash);
+int spi_flash_erase(struct spi_flash *flash, uint32_t offset, uint32_t len);
+int spi_flash_write(struct spi_flash *flash, uint32_t offset,
+		    uint32_t len, void *buf);
+int spi_flash_read(struct spi_flash *flash, uint32_t offset,
+		   uint32_t len, void *data);
+#endif /* _SPI_FLASH_H_ */