diff --git a/src/soc/amd/cezanne/include/soc/psp_transfer.h b/src/soc/amd/cezanne/include/soc/psp_transfer.h
index f5cd427d4c..96cdae192f 100644
--- a/src/soc/amd/cezanne/include/soc/psp_transfer.h
+++ b/src/soc/amd/cezanne/include/soc/psp_transfer.h
@@ -3,7 +3,56 @@
 #ifndef AMD_CEZANNE_PSP_TRANSFER_H
 #define AMD_CEZANNE_PSP_TRANSFER_H
 
+# if (CONFIG_CMOS_RECOVERY_BYTE != 0)
+#  define CMOS_RECOVERY_BYTE CONFIG_CMOS_RECOVERY_BYTE
+# elif CONFIG(VBOOT_STARTS_BEFORE_BOOTBLOCK)
+#  error "Must set CONFIG_CMOS_RECOVERY_BYTE"
+# endif
+
+#define CMOS_RECOVERY_MAGIC_VAL		0x96
+
 #define TRANSFER_INFO_SIZE		64
 #define TIMESTAMP_BUFFER_SIZE		0x200
 
+#define TRANSFER_MAGIC_VAL		0x50544953
+
+/* Bit definitions for the psp_info field in the PSP transfer_info_struct */
+#define PSP_INFO_PRODUCTION_MODE	0x00000001UL
+#define PSP_INFO_PRODUCTION_SILICON	0x00000002UL
+#define PSP_INFO_VALID			0x80000000UL
+
+/* Area for things that would cause errors in a linker script */
+#if !defined(__ASSEMBLER__)
+#include <stdint.h>
+
+struct transfer_info_struct {
+	uint32_t	magic_val;		/* Identifier */
+	uint32_t	struct_bytes;		/* Size of this structure */
+	uint32_t	buffer_size;		/* Size of the transfer buffer area */
+
+	/* Offsets from start of transfer buffer */
+	uint32_t	workbuf_offset;
+	uint32_t	console_offset;
+	uint32_t	timestamp_offset;
+	uint32_t	fmap_offset;
+
+	uint32_t	unused1[5];
+
+	/* Fields reserved for the PSP */
+	uint64_t	timestamp;		/* Offset 0x30 */
+	uint32_t	psp_unused;		/* Offset 0x38 */
+	uint32_t	psp_info;		/* Offset 0x3C */
+};
+
+_Static_assert(sizeof(struct transfer_info_struct) == TRANSFER_INFO_SIZE,
+		"TRANSFER_INFO_SIZE is incorrect");
+
+/* Make sure the PSP transferred information over to x86 side. */
+void verify_psp_transfer_buf(void);
+/* Display the transfer block's PSP_info data */
+void show_psp_transfer_info(void);
+/* Called by bootblock_c_entry in the VBOOT_STARTS_BEFORE_BOOTBLOCK case */
+void boot_with_psp_timestamp(uint64_t base_timestamp);
+
+#endif
 #endif	/* AMD_CEZANNE_PSP_TRANSFER_H */