diff --git a/litex/soc/cores/cpu/blackparrot/core.py b/litex/soc/cores/cpu/blackparrot/core.py
index 897664892..fe220cf2e 100644
--- a/litex/soc/cores/cpu/blackparrot/core.py
+++ b/litex/soc/cores/cpu/blackparrot/core.py
@@ -73,12 +73,12 @@ class BlackParrotRV64(CPU):
     def __init__(self, platform, variant="standard"):
         assert variant in CPU_VARIANTS, "Unsupported variant %s" % variant
 
-        self.platform  = platform
-        self.variant   = variant
-        self.reset     = Signal()
-        self.interrupt = Signal(4)
-        self.idbus     = idbus = wishbone.Interface(data_width=64, adr_width=37)
-        self.buses     = [idbus]
+        self.platform     = platform
+        self.variant      = variant
+        self.reset        = Signal()
+        self.interrupt    = Signal(4)
+        self.idbus        = idbus = wishbone.Interface(data_width=64, adr_width=37)
+        self.periph_buses = [idbus]
 
         # # #
 
diff --git a/litex/soc/cores/cpu/lm32/core.py b/litex/soc/cores/cpu/lm32/core.py
index 9ef8333b9..e1b6bce39 100644
--- a/litex/soc/cores/cpu/lm32/core.py
+++ b/litex/soc/cores/cpu/lm32/core.py
@@ -34,13 +34,13 @@ class LM32(CPU):
 
     def __init__(self, platform, variant="standard"):
         assert variant in CPU_VARIANTS, "Unsupported variant %s" % variant
-        self.platform  = platform
-        self.variant   = variant
-        self.reset     = Signal()
-        self.ibus      = i = wishbone.Interface()
-        self.dbus      = d = wishbone.Interface()
-        self.interrupt = Signal(32)
-        self.buses     = [i, d]
+        self.platform     = platform
+        self.variant      = variant
+        self.reset        = Signal()
+        self.ibus         = i = wishbone.Interface()
+        self.dbus         = d = wishbone.Interface()
+        self.interrupt    = Signal(32)
+        self.periph_buses = [i, d]
 
         # # #
 
diff --git a/litex/soc/cores/cpu/microwatt/core.py b/litex/soc/cores/cpu/microwatt/core.py
index 584ad4450..17b6e3eaa 100644
--- a/litex/soc/cores/cpu/microwatt/core.py
+++ b/litex/soc/cores/cpu/microwatt/core.py
@@ -41,12 +41,12 @@ class Microwatt(CPU):
 
     def __init__(self, platform, variant="standard"):
         assert variant in CPU_VARIANTS, "Unsupported variant %s" % variant
-        self.platform = platform
-        self.variant  = variant
-        self.reset    = Signal()
-        self.wb_insn  = wb_insn = wishbone.Interface(data_width=64, adr_width=28)
-        self.wb_data  = wb_data = wishbone.Interface(data_width=64, adr_width=28)
-        self.buses    = [wb_insn, wb_data]
+        self.platform     = platform
+        self.variant      = variant
+        self.reset        = Signal()
+        self.wb_insn      = wb_insn = wishbone.Interface(data_width=64, adr_width=28)
+        self.wb_data      = wb_data = wishbone.Interface(data_width=64, adr_width=28)
+        self.periph_buses = [wb_insn, wb_data]
 
         # # #
 
diff --git a/litex/soc/cores/cpu/minerva/core.py b/litex/soc/cores/cpu/minerva/core.py
index 2edbfe7ee..1603fea74 100644
--- a/litex/soc/cores/cpu/minerva/core.py
+++ b/litex/soc/cores/cpu/minerva/core.py
@@ -31,13 +31,13 @@ class Minerva(CPU):
 
     def __init__(self, platform, variant="standard"):
         assert variant in CPU_VARIANTS, "Unsupported variant %s" % variant
-        self.platform  = platform
-        self.variant   = variant
-        self.reset     = Signal()
-        self.ibus      = wishbone.Interface()
-        self.dbus      = wishbone.Interface()
-        self.buses     = [self.ibus, self.dbus]
-        self.interrupt = Signal(32)
+        self.platform     = platform
+        self.variant      = variant
+        self.reset        = Signal()
+        self.ibus         = wishbone.Interface()
+        self.dbus         = wishbone.Interface()
+        self.periph_buses = [self.ibus, self.dbus]
+        self.interrupt    = Signal(32)
 
         # TODO: create variants
         self.with_icache = False
diff --git a/litex/soc/cores/cpu/mor1kx/core.py b/litex/soc/cores/cpu/mor1kx/core.py
index c82b6e55d..59ece9ff2 100644
--- a/litex/soc/cores/cpu/mor1kx/core.py
+++ b/litex/soc/cores/cpu/mor1kx/core.py
@@ -63,13 +63,13 @@ class MOR1KX(CPU):
 
     def __init__(self, platform, variant="standard"):
         assert variant in CPU_VARIANTS, "Unsupported variant %s" % variant
-        self.platform  = platform
-        self.variant   = variant
-        self.reset     = Signal()
-        self.ibus      = i = wishbone.Interface()
-        self.dbus      = d = wishbone.Interface()
-        self.buses     = [i, d]
-        self.interrupt = Signal(32)
+        self.platform     = platform
+        self.variant      = variant
+        self.reset        = Signal()
+        self.ibus         = i = wishbone.Interface()
+        self.dbus         = d = wishbone.Interface()
+        self.periph_buses = [i, d]
+        self.interrupt    = Signal(32)
 
         if variant == "linux":
             self.mem_map = self.mem_map_linux
diff --git a/litex/soc/cores/cpu/picorv32/core.py b/litex/soc/cores/cpu/picorv32/core.py
index 304f6c14d..03fc355d2 100644
--- a/litex/soc/cores/cpu/picorv32/core.py
+++ b/litex/soc/cores/cpu/picorv32/core.py
@@ -56,13 +56,13 @@ class PicoRV32(CPU):
 
     def __init__(self, platform, variant="standard"):
         assert variant in CPU_VARIANTS, "Unsupported variant %s" % variant
-        self.platform  = platform
-        self.variant   = variant
-        self.reset     = Signal()
-        self.idbus     = idbus = wishbone.Interface()
-        self.buses     = [idbus]
-        self.interrupt = Signal(32)
-        self.trap      = Signal()
+        self.platform     = platform
+        self.variant      = variant
+        self.reset        = Signal()
+        self.idbus        = idbus = wishbone.Interface()
+        self.periph_buses = [idbus]
+        self.interrupt    = Signal(32)
+        self.trap         = Signal()
 
         # # #
 
diff --git a/litex/soc/cores/cpu/rocket/core.py b/litex/soc/cores/cpu/rocket/core.py
index 14bab0f41..7d7afdf6c 100644
--- a/litex/soc/cores/cpu/rocket/core.py
+++ b/litex/soc/cores/cpu/rocket/core.py
@@ -106,7 +106,7 @@ class RocketRV64(CPU):
 
         self.mmio_wb   = mmio_wb = wishbone.Interface(data_width=mmio_dw, adr_width=32-log2_int(mmio_dw//8))
 
-        self.buses     = [mmio_wb]
+        self.periph_buses = [mmio_wb]
 
         # # #
 
diff --git a/litex/soc/cores/cpu/serv/core.py b/litex/soc/cores/cpu/serv/core.py
index 4fb2f0a49..00f313498 100644
--- a/litex/soc/cores/cpu/serv/core.py
+++ b/litex/soc/cores/cpu/serv/core.py
@@ -31,12 +31,12 @@ class SERV(CPU):
 
     def __init__(self, platform, variant="standard"):
         assert variant in CPU_VARIANTS, "Unsupported variant %s" % variant
-        self.platform  = platform
-        self.variant   = variant
-        self.reset     = Signal()
-        self.ibus      = ibus = wishbone.Interface()
-        self.dbus      = dbus = wishbone.Interface()
-        self.buses     = [ibus, dbus]
+        self.platform     = platform
+        self.variant      = variant
+        self.reset        = Signal()
+        self.ibus         = ibus = wishbone.Interface()
+        self.dbus         = dbus = wishbone.Interface()
+        self.periph_buses = [ibus, dbus]
 
         # # #
 
diff --git a/litex/soc/cores/cpu/vexriscv/core.py b/litex/soc/cores/cpu/vexriscv/core.py
index 4e0bbc0a0..bedd0de5a 100644
--- a/litex/soc/cores/cpu/vexriscv/core.py
+++ b/litex/soc/cores/cpu/vexriscv/core.py
@@ -105,7 +105,7 @@ class VexRiscv(CPU, AutoCSR):
         self.reset            = Signal()
         self.ibus             = ibus = wishbone.Interface()
         self.dbus             = dbus = wishbone.Interface()
-        self.buses            = [ibus, dbus]
+        self.periph_buses     = [ibus, dbus]
         self.interrupt        = Signal(32)
 
         self.cpu_params = dict(
diff --git a/litex/soc/integration/soc.py b/litex/soc/integration/soc.py
index dcea829aa..fbc86b6b4 100644
--- a/litex/soc/integration/soc.py
+++ b/litex/soc/integration/soc.py
@@ -781,7 +781,7 @@ class SoC(Module):
             if reset_address is None:
                 reset_address = self.mem_map["rom"]
             self.cpu.set_reset_address(reset_address)
-            for n, cpu_bus in enumerate(self.cpu.buses):
+            for n, cpu_bus in enumerate(self.cpu.periph_buses):
                 self.bus.add_master(name="cpu_bus{}".format(n), master=cpu_bus)
             self.csr.add("cpu", use_loc_if_exists=True)
             if hasattr(self.cpu, "interrupt"):