board: phytec: common: phytec_som_detection: Add helper for PCB revision
Add helper function to read out the PCB revision of a PHYTEC SoM.
Signed-off-by: Teresa Remmet <t.remmet@phytec.de>
Reviewed-by: Yannic Moog <y.moog@phytec.de>
Tested-by: Yannic Moog <y.moog@phytec.de>
diff --git a/board/phytec/common/phytec_som_detection.c b/board/phytec/common/phytec_som_detection.c
index 366bdd4..5556273 100644
--- a/board/phytec/common/phytec_som_detection.c
+++ b/board/phytec/common/phytec_som_detection.c
@@ -186,3 +186,18 @@
return opt;
}
+
+u8 __maybe_unused phytec_get_rev(struct phytec_eeprom_data *data)
+{
+ struct phytec_api2_data *api2;
+
+ if (!data)
+ data = &eeprom_data;
+
+ if (data->api_rev < PHYTEC_API_REV2)
+ return PHYTEC_EEPROM_INVAL;
+
+ api2 = &data->data.data_api2;
+
+ return api2->pcb_rev;
+}
diff --git a/board/phytec/common/phytec_som_detection.h b/board/phytec/common/phytec_som_detection.h
index 01f7e46..c68e230 100644
--- a/board/phytec/common/phytec_som_detection.h
+++ b/board/phytec/common/phytec_som_detection.h
@@ -68,6 +68,7 @@
void __maybe_unused phytec_print_som_info(struct phytec_eeprom_data *data);
char * __maybe_unused phytec_get_opt(struct phytec_eeprom_data *data);
+u8 __maybe_unused phytec_get_rev(struct phytec_eeprom_data *data);
#else
@@ -99,6 +100,10 @@
return NULL;
}
+u8 __maybe_unused phytec_get_rev(struct phytec_eeprom_data *data)
+{
+ return PHYTEC_EEPROM_INVAL;
+}
#endif /* IS_ENABLED(CONFIG_PHYTEC_SOM_DETECTION) */
#endif /* _PHYTEC_SOM_DETECTION_H */