feat(espefuse): Support different efuse table versions for ESP32H2

Author: KonstantinKondrashov

espefuse/efuse/esp32h2/fields.py

@@ -111,6 +111,10 @@ def __init__(
                 EfuseField.convert(self, efuse) for efuse in self.Fields.CALC
             ]
 
+        if self.get_chip_version() <= 101:
+            rev = EfuseDefineFields(None, revision="esp32h2_v0.0_v1.1")
+            self.efuses += [EfuseField.convert(self, efuse) for efuse in rev.EFUSES]
+
     def __getitem__(self, efuse_name):
         """Return the efuse field with the given name"""
         for e in self.efuses:

espefuse/efuse/esp32h2/mem_definition.py

@@ -111,7 +111,7 @@ def get_burn_block_data_names(self):
 
 
 class EfuseDefineFields(EfuseFieldsBase):
-    def __init__(self, extend_efuse_table) -> None:
+    def __init__(self, extend_efuse_table, revision=None) -> None:
         # List of efuse fields from TRM the chapter eFuse Controller.
         self.EFUSES = []
         self.KEYBLOCKS = []
@@ -120,6 +120,8 @@ def __init__(self, extend_efuse_table) -> None:
 
         dir_name = os.path.dirname(os.path.abspath(__file__))
         dir_name, file_name = os.path.split(dir_name)
+        if revision is not None:
+            file_name = revision
         file_name = file_name + ".yaml"
         dir_name, _ = os.path.split(dir_name)
         efuse_file = os.path.join(dir_name, "efuse_defs", file_name)

espefuse/efuse/esp32h2/operations.py

@@ -318,14 +318,16 @@ def burn_key(esp, efuses, args, digest=None):
             if efuses[block.key_purpose_name].is_writeable():
                 disable_wr_protect_key_purpose = True
 
-        if keypurpose == "ECDSA_KEY":
-            if efuses["ECDSA_FORCE_USE_HARDWARE_K"].get() == 0:
-                # For ECDSA key purpose block permanently enable
-                # the hardware TRNG supplied k mode (most secure mode)
-                print("\tECDSA_FORCE_USE_HARDWARE_K: 0 -> 1")
-                efuses["ECDSA_FORCE_USE_HARDWARE_K"].save(1)
-            else:
-                print("\tECDSA_FORCE_USE_HARDWARE_K is already '1'")
+        # >= ESP32-H2 ECO5 revision (v1.2) does not have ECDSA_FORCE_USE_HARDWARE_K
+        if efuses.get_chip_version() <= 101:
+            if keypurpose == "ECDSA_KEY":
+                if efuses["ECDSA_FORCE_USE_HARDWARE_K"].get() == 0:
+                    # For ECDSA key purpose block permanently enable
+                    # the hardware TRNG supplied k mode (most secure mode)
+                    print("\tECDSA_FORCE_USE_HARDWARE_K: 0 -> 1")
+                    efuses["ECDSA_FORCE_USE_HARDWARE_K"].save(1)
+                else:
+                    print("\tECDSA_FORCE_USE_HARDWARE_K is already '1'")
 
         if disable_wr_protect_key_purpose:
             print("\tDisabling write to '%s'." % block.key_purpose_name)

espefuse/efuse_defs/esp32h2_v0.0_v1.1.yaml

@@ -0,0 +1,3 @@
+VER_NO: 44563d2af4ebdba4db6c0a34a50c94f9
+EFUSES:
+  ECDSA_FORCE_USE_HARDWARE_K       : {show: y, blk : 0, word: 3, pos: 18, len  : 1, start: 114, type      : bool, wr_dis  : 17, rd_dis: null, alt                            : '', dict             : '', desc: 'Represents whether hardware random number k is forced used in ESDCA. 1: force used. 0: not force used', rloc: 'EFUSE_RD_REPEAT_DATA2_REG[18]', bloc: 'B14[2]'}