1 files changed, 69 insertions, 0 deletions
diff --git a/include/boards/phytec/phytec-som-detection.h b/include/boards/phytec/phytec-som-detection.h
new file mode 100644
index 0000000000..32690d7562
--- /dev/null
+++ b/include/boards/phytec/phytec-som-detection.h
@@ -0,0 +1,69 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2020 PHYTEC Messtechnik GmbH
+ * Author: Teresa Remmet <t.remmet@phytec.de>
+ */
+
+#ifndef _BOARDS_PHYTEC_PHYTEC_SOM_DETECTION_H
+#define _BOARDS_PHYTEC_PHYTEC_SOM_DETECTION_H
+
+#include <common.h>
+#include <pbl/i2c.h>
+
+#define PHYTEC_MAX_OPTIONS	17
+#define PHYTEC_IMX8MQ_SOM	66
+#define PHYTEC_IMX8MM_SOM	69
+#define PHYTEC_IMX8MP_SOM	70
+
+#define PHYTEC_EEPROM_INVAL	0xff
+
+enum {
+	PHYTEC_API_REV0 = 0,
+	PHYTEC_API_REV1,
+	PHYTEC_API_REV2,
+};
+
+static const char * const phytec_som_type_str[] = {
+	"PCM",
+	"PCL",
+	"KSM",
+	"KSP",
+};
+
+struct phytec_api0_data {
+	u8 pcb_rev;		/* PCB revision of SoM */
+	u8 som_type;		/* SoM type */
+	u8 ksp_no;		/* KSP no */
+	char opt[16];		/* SoM options */
+	u8 mac[6];		/* MAC address (optional) */
+	u8 __pad[5];		/* padding */
+	u8 cksum;		/* checksum */
+} __attribute__ ((__packed__));
+
+struct phytec_api2_data {
+	u8 pcb_rev;		/* PCB revision of SoM */
+	u8 pcb_sub_opt_rev;	/* PCB subrevision and opt revision */
+	u8 som_type;		/* SoM type */
+	u8 som_no;		/* SoM number */
+	u8 ksp_no;		/* KSP information */
+	char opt[PHYTEC_MAX_OPTIONS]; /* SoM options */
+	char bom_rev[2];	/* BOM revision */
+	u8 mac[6];		/* MAC address (optional) */
+	u8 crc8;		/* checksum */
+} __attribute__ ((__packed__));
+
+struct phytec_eeprom_data {
+	u8 api_rev;
+	union {
+		struct phytec_api0_data data_api0;
+		struct phytec_api2_data data_api2;
+	} data;
+} __attribute__ ((__packed__));
+
+const char *phytec_get_opt(const struct phytec_eeprom_data *data);
+int phytec_eeprom_data_setup(struct pbl_i2c *i2c, struct phytec_eeprom_data *data,
+			     int addr, int addr_fallback, u8 cpu_type);
+
+void phytec_print_som_info(const struct phytec_eeprom_data *data);
+
+#endif /* _BOARDS_PHYTEC_PHYTEC_SOM_DETECTION_H */