diff --git a/hw/pci-bridge/dec.h b/hw/pci-bridge/dec.h
deleted file mode 100644
index 869e90b136..0000000000
--- a/hw/pci-bridge/dec.h
+++ /dev/null
@@ -1,9 +0,0 @@
-#ifndef HW_PCI_BRIDGE_DEC_H
-#define HW_PCI_BRIDGE_DEC_H
-
-
-#define TYPE_DEC_21154 "dec-21154-sysbus"
-
-PCIBus *pci_dec_21154_init(PCIBus *parent_bus, int devfn);
-
-#endif
diff --git a/include/hw/pci/pci_ids.h b/include/hw/pci/pci_ids.h
index bc9f834fd1..e4386ebb20 100644
--- a/include/hw/pci/pci_ids.h
+++ b/include/hw/pci/pci_ids.h
@@ -169,7 +169,6 @@
 
 #define PCI_VENDOR_ID_DEC                0x1011
 #define PCI_DEVICE_ID_DEC_21143          0x0019
-#define PCI_DEVICE_ID_DEC_21154          0x0026
 
 #define PCI_VENDOR_ID_CIRRUS             0x1013
 
diff --git a/hw/pci-bridge/dec.c b/hw/pci-bridge/dec.c
deleted file mode 100644
index 4773d07e6d..0000000000
--- a/hw/pci-bridge/dec.c
+++ /dev/null
@@ -1,164 +0,0 @@
-/*
- * QEMU DEC 21154 PCI bridge
- *
- * Copyright (c) 2006-2007 Fabrice Bellard
- * Copyright (c) 2007 Jocelyn Mayer
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#include "qemu/osdep.h"
-#include "dec.h"
-#include "hw/sysbus.h"
-#include "qapi/error.h"
-#include "qemu/module.h"
-#include "hw/pci/pci.h"
-#include "hw/pci/pci_host.h"
-#include "hw/pci/pci_bridge.h"
-#include "hw/pci/pci_bus.h"
-#include "qom/object.h"
-
-OBJECT_DECLARE_SIMPLE_TYPE(DECState, DEC_21154)
-
-struct DECState {
-    PCIHostState parent_obj;
-};
-
-static int dec_map_irq(PCIDevice *pci_dev, int irq_num)
-{
-    return irq_num;
-}
-
-static void dec_pci_bridge_realize(PCIDevice *pci_dev, Error **errp)
-{
-    pci_bridge_initfn(pci_dev, TYPE_PCI_BUS);
-}
-
-static void dec_21154_pci_bridge_class_init(ObjectClass *klass, void *data)
-{
-    DeviceClass *dc = DEVICE_CLASS(klass);
-    PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
-
-    set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
-    k->realize = dec_pci_bridge_realize;
-    k->exit = pci_bridge_exitfn;
-    k->vendor_id = PCI_VENDOR_ID_DEC;
-    k->device_id = PCI_DEVICE_ID_DEC_21154;
-    k->config_write = pci_bridge_write_config;
-    k->is_bridge = true;
-    dc->desc = "DEC 21154 PCI-PCI bridge";
-    dc->reset = pci_bridge_reset;
-    dc->vmsd = &vmstate_pci_device;
-}
-
-static const TypeInfo dec_21154_pci_bridge_info = {
-    .name          = "dec-21154-p2p-bridge",
-    .parent        = TYPE_PCI_BRIDGE,
-    .instance_size = sizeof(PCIBridge),
-    .class_init    = dec_21154_pci_bridge_class_init,
-    .interfaces = (InterfaceInfo[]) {
-        { INTERFACE_CONVENTIONAL_PCI_DEVICE },
-        { },
-    },
-};
-
-PCIBus *pci_dec_21154_init(PCIBus *parent_bus, int devfn)
-{
-    PCIDevice *dev;
-    PCIBridge *br;
-
-    dev = pci_new_multifunction(devfn, false, "dec-21154-p2p-bridge");
-    br = PCI_BRIDGE(dev);
-    pci_bridge_map_irq(br, "DEC 21154 PCI-PCI bridge", dec_map_irq);
-    pci_realize_and_unref(dev, parent_bus, &error_fatal);
-    return pci_bridge_get_sec_bus(br);
-}
-
-static void pci_dec_21154_device_realize(DeviceState *dev, Error **errp)
-{
-    PCIHostState *phb;
-    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
-
-    phb = PCI_HOST_BRIDGE(dev);
-
-    memory_region_init_io(&phb->conf_mem, OBJECT(dev), &pci_host_conf_le_ops,
-                          dev, "pci-conf-idx", 0x1000);
-    memory_region_init_io(&phb->data_mem, OBJECT(dev), &pci_host_data_le_ops,
-                          dev, "pci-data-idx", 0x1000);
-    sysbus_init_mmio(sbd, &phb->conf_mem);
-    sysbus_init_mmio(sbd, &phb->data_mem);
-}
-
-static void dec_21154_pci_host_realize(PCIDevice *d, Error **errp)
-{
-    /* PCI2PCI bridge same values as PearPC - check this */
-}
-
-static void dec_21154_pci_host_class_init(ObjectClass *klass, void *data)
-{
-    PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
-    DeviceClass *dc = DEVICE_CLASS(klass);
-
-    set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
-    k->realize = dec_21154_pci_host_realize;
-    k->vendor_id = PCI_VENDOR_ID_DEC;
-    k->device_id = PCI_DEVICE_ID_DEC_21154;
-    k->revision = 0x02;
-    k->class_id = PCI_CLASS_BRIDGE_PCI;
-    k->is_bridge = true;
-    /*
-     * PCI-facing part of the host bridge, not usable without the
-     * host-facing part, which can't be device_add'ed, yet.
-     */
-    dc->user_creatable = false;
-}
-
-static const TypeInfo dec_21154_pci_host_info = {
-    .name          = "dec-21154",
-    .parent        = TYPE_PCI_DEVICE,
-    .instance_size = sizeof(PCIDevice),
-    .class_init    = dec_21154_pci_host_class_init,
-    .interfaces = (InterfaceInfo[]) {
-        { INTERFACE_CONVENTIONAL_PCI_DEVICE },
-        { },
-    },
-};
-
-static void pci_dec_21154_device_class_init(ObjectClass *klass, void *data)
-{
-    DeviceClass *dc = DEVICE_CLASS(klass);
-
-    dc->realize = pci_dec_21154_device_realize;
-}
-
-static const TypeInfo pci_dec_21154_device_info = {
-    .name          = TYPE_DEC_21154,
-    .parent        = TYPE_PCI_HOST_BRIDGE,
-    .instance_size = sizeof(DECState),
-    .class_init    = pci_dec_21154_device_class_init,
-};
-
-static void dec_register_types(void)
-{
-    type_register_static(&pci_dec_21154_device_info);
-    type_register_static(&dec_21154_pci_host_info);
-    type_register_static(&dec_21154_pci_bridge_info);
-}
-
-type_init(dec_register_types)
diff --git a/hw/pci-bridge/meson.build b/hw/pci-bridge/meson.build
index 243ceeda50..fe92d43de6 100644
--- a/hw/pci-bridge/meson.build
+++ b/hw/pci-bridge/meson.build
@@ -8,8 +8,6 @@ pci_ss.add(when: 'CONFIG_PXB', if_true: files('pci_expander_bridge.c'),
 pci_ss.add(when: 'CONFIG_XIO3130', if_true: files('xio3130_upstream.c', 'xio3130_downstream.c'))
 pci_ss.add(when: 'CONFIG_CXL', if_true: files('cxl_root_port.c', 'cxl_upstream.c', 'cxl_downstream.c'))
 
-# NewWorld PowerMac
-pci_ss.add(when: 'CONFIG_DEC_PCI', if_true: files('dec.c'))
 # Sun4u
 pci_ss.add(when: 'CONFIG_SIMBA', if_true: files('simba.c'))
 
diff --git a/hw/pci-host/uninorth.c b/hw/pci-host/uninorth.c
index aebd44d265..5c617e86c1 100644
--- a/hw/pci-host/uninorth.c
+++ b/hw/pci-host/uninorth.c
@@ -127,12 +127,6 @@ static void pci_unin_main_realize(DeviceState *dev, Error **errp)
                                    PCI_DEVFN(11, 0), 4, TYPE_PCI_BUS);
 
     pci_create_simple(h->bus, PCI_DEVFN(11, 0), "uni-north-pci");
-
-    /* DEC 21154 bridge */
-#if 0
-    /* XXX: not activated as PPC BIOS doesn't handle multiple buses properly */
-    pci_create_simple(h->bus, PCI_DEVFN(12, 0), "dec-21154");
-#endif
 }
 
 static void pci_unin_main_init(Object *obj)
