1 files changed, 59 insertions, 0 deletions
diff --git a/src/mainboard/prodrive/atlas/vpd.h b/src/mainboard/prodrive/atlas/vpd.h
new file mode 100644
index 0000000000..3955c119a7
--- /dev/null
+++ b/src/mainboard/prodrive/atlas/vpd.h
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef ATLAS_VPD_H
+#define ATLAS_VPD_H
+
+/*
+ * The Atlas COMe module stores some non-volatile vital product data in
+ * an EC-attached I2C EEPROM. The EC firmware reads the EEPROM contents
+ * and provides them to the host via EMI (Embedded Memory Interface) 0.
+ */
+
+#include <types.h>
+
+#define VPD_MAGIC	0x56504453  /* 'VPDS' */
+
+/*
+ * Increment this value whenever new fields are added to the structures.
+ * Furthermore, adapt the `get_emi_eeprom_vpd()` function accordingly to
+ * provide fallback values for newly-added fields.
+ */
+#define VPD_LATEST_REVISION	1
+
+struct __packed emi_eeprom_vpd_header {
+	uint32_t magic;
+	uint8_t revision;
+	uint8_t _rfu[15];	/* Reserved for Future Use */
+};
+
+/* For backwards compatibility reasons, do NOT reuse enum values! */
+enum atlas_profile {
+	ATLAS_PROF_UNPROGRAMMED		= 0,	/* EEPROM not initialised */
+	ATLAS_PROF_DEFAULT		= 1,
+	ATLAS_PROF_REALTIME_PERFORMANCE	= 2,
+	ATLAS_PROF_THEMIS_LED_CONFIG	= 3,
+};
+
+#define ATLAS_SN_PN_LENGTH	20
+
+#define EMI_EEPROM_LAYOUT_LENGTH (			\
+		sizeof(struct emi_eeprom_vpd_header) +	\
+		ATLAS_SN_PN_LENGTH +			\
+		ATLAS_SN_PN_LENGTH +			\
+		sizeof(uint16_t)			\
+	)
+
+union emi_eeprom_vpd {
+	struct __packed {
+		struct emi_eeprom_vpd_header header;
+		char serial_number[ATLAS_SN_PN_LENGTH];	/* xx-xx-xxx-xxx */
+		char part_number[ATLAS_SN_PN_LENGTH];	/* xxx-xxxx-xxxx.Rxx */
+		uint16_t profile;
+	};
+	uint8_t raw[EMI_EEPROM_LAYOUT_LENGTH];
+};
+
+/* Always returns a non-NULL pointer to valid data */
+const union emi_eeprom_vpd *get_emi_eeprom_vpd(void);
+
+#endif /* ATLAS_VPD_H */