diff --git a/proxyclient/m1n1/adt.py b/proxyclient/m1n1/adt.py
index 0df523b36..e6390d03c 100644
--- a/proxyclient/m1n1/adt.py
+++ b/proxyclient/m1n1/adt.py
@@ -102,8 +102,8 @@
     "unk2_0" / Int16ul,
     "pd" / Int8ul,
     "ps_cfg16" / Int8ul,
-    "group" / Int8ul,
     "offset" / Int24ul,
+    "group" / Int8ul,
     "unk2_2" / Int32ul,
     "unk2_3" / Int16ul,
     "id2" / Int16ul,
@@ -823,6 +823,7 @@ def create_node(self, name):
 
     def pmgr_init(self):
         self._pmgr_u8id = (self["/arm-io/pmgr"].devices[0].id1 != self["/arm-io/pmgr"].devices[1].id1)
+        self._pmgr_use_group_and_offset = not "ps-regs" in self["/arm-io/pmgr"]._properties
 
     def pmgr_dev_get_id(self, dev):
         if self._pmgr_u8id:
@@ -836,6 +837,22 @@ def pmgr_dev_get_parents(self, dev):
         else:
             return dev.parents_un.u16id.parents 
 
+    def pmgr_dev_get_block(self, dev):
+        if self._pmgr_use_group_and_offset:
+            reg = self["/arm-io/pmgr"].ps_groups[dev.group].reg
+        else:
+            reg = self["/arm-io/pmgr"].ps_regs[dev.psreg].reg
+        return self["/arm-io/pmgr"].get_reg(reg)
+
+    def pmgr_dev_get_offset(self, dev):
+        if self._pmgr_use_group_and_offset:
+            return dev.offset
+        else:
+            return self["/arm-io/pmgr"].ps_regs[dev.psreg].offset + dev.psidx * 8
+
+    def pmgr_dev_get_addr(self, dev):
+        return self.pmgr_dev_get_block(dev)[0] + self.pmgr_dev_get_offset(dev)
+
 def load_adt(data):
     node = ADTNode(ADTNodeStruct.parse(data))
     node.pmgr_init()
diff --git a/proxyclient/tools/dump_pmgr.py b/proxyclient/tools/dump_pmgr.py
index b1f6f61bd..3521d1037 100755
--- a/proxyclient/tools/dump_pmgr.py
+++ b/proxyclient/tools/dump_pmgr.py
@@ -52,8 +52,7 @@
     s += f" perf_reg: {dev.perf_block}:{dev.perf_idx:#04x} unk3: {dev.unk3:3d} {dev.unk2_0:2d} {dev.ps_cfg16:2d} {dev.unk2_3:3d}"
 
     if not dev.flags.no_ps:
-        ps = pmgr.ps_regs[dev.psreg]
-        addr = pmgr.get_reg(ps.reg)[0] + ps.offset + dev.psidx * 8
+        addr = dt.pmgr_dev_get_addr(dev)
         val = p.read32(addr)
         s += f" @ {addr:#x} = {val:#010x}"
     else:
@@ -108,7 +107,7 @@
 
 print()
 
-if chip_id in (0x8960, 0x7000, 0x7001, 0x8000, 0x8001, 0x8003, 0x8010, 0x8012, 0x8015):
+if dt["/chosen"].chip_id in (0x8960, 0x7000, 0x7001, 0x8000, 0x8001, 0x8003, 0x8010, 0x8012, 0x8015):
     exit(0)
 
 print("=== Boot clocks ===")
diff --git a/proxyclient/tools/pmgr_adt2dt.py b/proxyclient/tools/pmgr_adt2dt.py
index e9a7cea28..e826fd54e 100755
--- a/proxyclient/tools/pmgr_adt2dt.py
+++ b/proxyclient/tools/pmgr_adt2dt.py
@@ -39,10 +39,9 @@ def die_label(s):
 for i, dev in enumerate(pmgr.devices):
     if dev.flags.no_ps:
         continue
-    ps = pmgr.ps_regs[dev.psreg]
-    block = pmgr.get_reg(ps.reg)
+    block = dt.pmgr_dev_get_block(dev)
     blocks.setdefault(block, []).append(dev)
-    offset = ps.offset + dev.psidx * 8
+    offset = dt.pmgr_dev_get_offset(dev)
     maxaddr[block[0]] = max(maxaddr.get(block[0], 0), offset)
 
 pmgr_compat = pmgr.compatible[0].split(",")[1]
@@ -65,13 +64,11 @@ def die_label(s):
 for i, ((base, size), devices) in enumerate(sorted(blocks.items())):
     print(f"&pmgr{i} {{")
 
-    for dev in sorted(devices, key=lambda d: pmgr.ps_regs[d.psreg].offset + dev.psidx * 8):
+    for dev in sorted(devices, key=dt.pmgr_dev_get_addr):
         if dev.flags.no_ps:
             continue
 
-        ps = pmgr.ps_regs[dev.psreg]
-        offset = ps.offset + dev.psidx * 8
-        addr = pmgr.get_reg(ps.reg)[0] + offset
+        addr = dt.pmgr_dev_get_addr(dev)
         assert base <= addr <= (base + size)
 
         print()