Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

12 files changed, 1130 insertions, 0 deletions

diff --git a/arch/mips/boot/dts/loongson/Makefile b/arch/mips/boot/dts/loongson/Makefile
new file mode 100644
index 000000000..5c6433e44
--- /dev/null
+++ b/arch/mips/boot/dts/loongson/Makefile
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
+dtb-$(CONFIG_MACH_LOONGSON64)	+= loongson64_2core_2k1000.dtb
+dtb-$(CONFIG_MACH_LOONGSON64)	+= loongson64c_4core_ls7a.dtb
+dtb-$(CONFIG_MACH_LOONGSON64)	+= loongson64c_4core_rs780e.dtb
+dtb-$(CONFIG_MACH_LOONGSON64)	+= loongson64c_8core_rs780e.dtb
+dtb-$(CONFIG_MACH_LOONGSON64)	+= loongson64g_4core_ls7a.dtb
+dtb-$(CONFIG_MACH_LOONGSON64)	+= loongson64v_4core_virtio.dtb
+
+obj-$(CONFIG_BUILTIN_DTB)	+= $(addsuffix .o, $(dtb-y))
diff --git a/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi b/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi
new file mode 100644
index 000000000..8143a6111
--- /dev/null
+++ b/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi
@@ -0,0 +1,294 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/dts-v1/;
+
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	compatible = "loongson,loongson2k1000";
+
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu0: cpu@0 {
+			device_type = "cpu";
+			compatible = "loongson,gs264";
+			reg = <0x0>;
+			#clock-cells = <1>;
+			clocks = <&cpu_clk>;
+		};
+	};
+
+	memory@200000 {
+		compatible = "memory";
+		device_type = "memory";
+		reg = <0x00000000 0x00200000 0x00000000 0x0ee00000>, /* 238 MB at 2 MB */
+			<0x00000000 0x20000000 0x00000000 0x1f000000>, /* 496 MB at 512 MB */
+			<0x00000001 0x10000000 0x00000001 0xb0000000>; /* 6912 MB at 4352MB */
+	};
+
+	cpu_clk: cpu_clk {
+		#clock-cells = <0>;
+		compatible = "fixed-clock";
+		clock-frequency = <800000000>;
+	};
+
+	cpuintc: interrupt-controller {
+		#address-cells = <0>;
+		#interrupt-cells = <1>;
+		interrupt-controller;
+		compatible = "mti,cpu-interrupt-controller";
+	};
+
+	package0: bus@10000000 {
+		compatible = "simple-bus";
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges = <0 0x10000000 0 0x10000000 0 0x10000000 /* ioports */
+			0 0x40000000 0 0x40000000 0 0x40000000
+			0xfe 0x00000000 0xfe 0x00000000 0 0x40000000>;
+
+		pm: reset-controller@1fe07000 {
+			compatible = "loongson,ls2k-pm";
+			reg = <0 0x1fe07000 0 0x422>;
+		};
+
+		liointc0: interrupt-controller@1fe11400 {
+			compatible = "loongson,liointc-2.0";
+			reg = <0 0x1fe11400 0 0x40>,
+				<0 0x1fe11040 0 0x8>,
+				<0 0x1fe11140 0 0x8>;
+			reg-names = "main", "isr0", "isr1";
+
+			interrupt-controller;
+			#interrupt-cells = <2>;
+
+			interrupt-parent = <&cpuintc>;
+			interrupts = <2>;
+			interrupt-names = "int0";
+
+			loongson,parent_int_map = <0xffffffff>, /* int0 */
+						<0x00000000>, /* int1 */
+						<0x00000000>, /* int2 */
+						<0x00000000>; /* int3 */
+		};
+
+		liointc1: interrupt-controller@1fe11440 {
+			compatible = "loongson,liointc-2.0";
+			reg = <0 0x1fe11440 0 0x40>,
+				<0 0x1fe11048 0 0x8>,
+				<0 0x1fe11148 0 0x8>;
+			reg-names = "main", "isr0", "isr1";
+
+			interrupt-controller;
+			#interrupt-cells = <2>;
+
+			interrupt-parent = <&cpuintc>;
+			interrupts = <3>;
+			interrupt-names = "int1";
+
+			loongson,parent_int_map = <0x00000000>, /* int0 */
+						<0xffffffff>, /* int1 */
+						<0x00000000>, /* int2 */
+						<0x00000000>; /* int3 */
+		};
+
+		uart0: serial@1fe00000 {
+			compatible = "ns16550a";
+			reg = <0 0x1fe00000 0 0x8>;
+			clock-frequency = <125000000>;
+			interrupt-parent = <&liointc0>;
+			interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+			no-loopback-test;
+		};
+
+		pci@1a000000 {
+			compatible = "loongson,ls2k-pci";
+			device_type = "pci";
+			#address-cells = <3>;
+			#size-cells = <2>;
+			#interrupt-cells = <2>;
+
+			reg = <0 0x1a000000 0 0x02000000>,
+				<0xfe 0x00000000 0 0x20000000>;
+
+			ranges = <0x01000000 0x0 0x00000000 0x0 0x18000000  0x0 0x00010000>,
+				 <0x02000000 0x0 0x40000000 0x0 0x40000000  0x0 0x40000000>;
+
+			gmac@3,0 {
+				compatible = "pci0014,7a03.0",
+						   "pci0014,7a03",
+						   "pciclass0c0320",
+						   "pciclass0c03",
+						   "loongson, pci-gmac";
+
+				reg = <0x1800 0x0 0x0 0x0 0x0>;
+				interrupts = <12 IRQ_TYPE_LEVEL_LOW>,
+					     <13 IRQ_TYPE_LEVEL_LOW>;
+				interrupt-names = "macirq", "eth_lpi";
+				interrupt-parent = <&liointc0>;
+				phy-mode = "rgmii";
+				mdio {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					compatible = "snps,dwmac-mdio";
+					phy0: ethernet-phy@0 {
+						reg = <0>;
+					};
+				};
+			};
+
+			gmac@3,1 {
+				compatible = "pci0014,7a03.0",
+						   "pci0014,7a03",
+						   "pciclass0c0320",
+						   "pciclass0c03",
+						   "loongson, pci-gmac";
+
+				reg = <0x1900 0x0 0x0 0x0 0x0>;
+				interrupts = <14 IRQ_TYPE_LEVEL_LOW>,
+					     <15 IRQ_TYPE_LEVEL_LOW>;
+				interrupt-names = "macirq", "eth_lpi";
+				interrupt-parent = <&liointc0>;
+				phy-mode = "rgmii";
+				mdio {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					compatible = "snps,dwmac-mdio";
+					phy1: ethernet-phy@1 {
+						reg = <0>;
+					};
+				};
+			};
+
+			ehci@4,1 {
+				compatible = "pci0014,7a14.0",
+						   "pci0014,7a14",
+						   "pciclass0c0320",
+						   "pciclass0c03";
+
+				reg = <0x2100 0x0 0x0 0x0 0x0>;
+				interrupts = <18 IRQ_TYPE_LEVEL_LOW>;
+				interrupt-parent = <&liointc1>;
+			};
+
+			ohci@4,2 {
+				compatible = "pci0014,7a24.0",
+						   "pci0014,7a24",
+						   "pciclass0c0310",
+						   "pciclass0c03";
+
+				reg = <0x2200 0x0 0x0 0x0 0x0>;
+				interrupts = <19 IRQ_TYPE_LEVEL_LOW>;
+				interrupt-parent = <&liointc1>;
+			};
+
+			sata@8,0 {
+				compatible = "pci0014,7a08.0",
+						   "pci0014,7a08",
+						   "pciclass010601",
+						   "pciclass0106";
+
+				reg = <0x4000 0x0 0x0 0x0 0x0>;
+				interrupts = <19 IRQ_TYPE_LEVEL_LOW>;
+				interrupt-parent = <&liointc0>;
+			};
+
+			pci_bridge@9,0 {
+				compatible = "pci0014,7a19.0",
+						   "pci0014,7a19",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x4800 0x0 0x0 0x0 0x0>;
+				#interrupt-cells = <1>;
+				interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+				interrupt-parent = <&liointc1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &liointc1 0 IRQ_TYPE_LEVEL_LOW>;
+				external-facing;
+			};
+
+			pci_bridge@a,0 {
+				compatible = "pci0014,7a09.0",
+						   "pci0014,7a09",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x5000 0x0 0x0 0x0 0x0>;
+				#interrupt-cells = <1>;
+				interrupts = <1 IRQ_TYPE_LEVEL_LOW>;
+				interrupt-parent = <&liointc1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &liointc1 1 IRQ_TYPE_LEVEL_LOW>;
+				external-facing;
+			};
+
+			pci_bridge@b,0 {
+				compatible = "pci0014,7a09.0",
+						   "pci0014,7a09",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x5800 0x0 0x0 0x0 0x0>;
+				#interrupt-cells = <1>;
+				interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
+				interrupt-parent = <&liointc1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &liointc1 2 IRQ_TYPE_LEVEL_LOW>;
+				external-facing;
+			};
+
+			pci_bridge@c,0 {
+				compatible = "pci0014,7a09.0",
+						   "pci0014,7a09",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x6000 0x0 0x0 0x0 0x0>;
+				#interrupt-cells = <1>;
+				interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
+				interrupt-parent = <&liointc1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &liointc1 3 IRQ_TYPE_LEVEL_LOW>;
+				external-facing;
+			};
+
+			pci_bridge@d,0 {
+				compatible = "pci0014,7a19.0",
+						   "pci0014,7a19",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x6800 0x0 0x0 0x0 0x0>;
+				#interrupt-cells = <1>;
+				interrupts = <4 IRQ_TYPE_LEVEL_LOW>;
+				interrupt-parent = <&liointc1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &liointc1 4 IRQ_TYPE_LEVEL_LOW>;
+				external-facing;
+			};
+
+			pci_bridge@e,0 {
+				compatible = "pci0014,7a09.0",
+						   "pci0014,7a09",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x7000 0x0 0x0 0x0 0x0>;
+				#interrupt-cells = <1>;
+				interrupts = <5 IRQ_TYPE_LEVEL_LOW>;
+				interrupt-parent = <&liointc1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &liointc1 5 IRQ_TYPE_LEVEL_LOW>;
+				external-facing;
+			};
+
+		};
+	};
+};
+
diff --git a/arch/mips/boot/dts/loongson/loongson64_2core_2k1000.dts b/arch/mips/boot/dts/loongson/loongson64_2core_2k1000.dts
new file mode 100644
index 000000000..e31d2ee65
--- /dev/null
+++ b/arch/mips/boot/dts/loongson/loongson64_2core_2k1000.dts
@@ -0,0 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/dts-v1/;
+
+#include "loongson64-2k1000.dtsi"
+
+/ {
+	compatible = "loongson,loongson64-2core-2k1000";
+};
+
diff --git a/arch/mips/boot/dts/loongson/loongson64c-package.dtsi b/arch/mips/boot/dts/loongson/loongson64c-package.dtsi
new file mode 100644
index 000000000..5bb876a4d
--- /dev/null
+++ b/arch/mips/boot/dts/loongson/loongson64c-package.dtsi
@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	cpuintc: interrupt-controller {
+		#address-cells = <0>;
+		#interrupt-cells = <1>;
+		interrupt-controller;
+		compatible = "mti,cpu-interrupt-controller";
+	};
+
+	package0: bus@1fe00000 {
+		compatible = "simple-bus";
+		#address-cells = <2>;
+		#size-cells = <1>;
+		ranges = <0 0x1fe00000 0 0x1fe00000 0x100000
+			0 0x3ff00000 0 0x3ff00000 0x100000
+			/* 3A HT Config Space */
+			0xefd 0xfb000000 0xefd 0xfb000000 0x10000000
+			/* 3B HT Config Space */
+			0x1efd 0xfb000000 0x1efd 0xfb000000 0x10000000>;
+
+		liointc: interrupt-controller@3ff01400 {
+			compatible = "loongson,liointc-1.0";
+			reg = <0 0x3ff01400 0x64>;
+
+			interrupt-controller;
+			#interrupt-cells = <2>;
+
+			interrupt-parent = <&cpuintc>;
+			interrupts = <2>, <3>;
+			interrupt-names = "int0", "int1";
+
+			loongson,parent_int_map = <0xf0ffffff>, /* int0 */
+						<0x0f000000>, /* int1 */
+						<0x00000000>, /* int2 */
+						<0x00000000>; /* int3 */
+
+		};
+
+		cpu_uart0: serial@1fe001e0 {
+			compatible = "ns16550a";
+			reg = <0 0x1fe001e0 0x8>;
+			clock-frequency = <33000000>;
+			interrupt-parent = <&liointc>;
+			interrupts = <10 IRQ_TYPE_LEVEL_HIGH>;
+			no-loopback-test;
+		};
+
+		cpu_uart1: serial@1fe001e8 {
+			status = "disabled";
+			compatible = "ns16550a";
+			reg = <0 0x1fe001e8 0x8>;
+			clock-frequency = <33000000>;
+			interrupts = <10 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-parent = <&liointc>;
+			no-loopback-test;
+		};
+	};
+};
diff --git a/arch/mips/boot/dts/loongson/loongson64c_4core_ls7a.dts b/arch/mips/boot/dts/loongson/loongson64c_4core_ls7a.dts
new file mode 100644
index 000000000..c7ea4f1c0
--- /dev/null
+++ b/arch/mips/boot/dts/loongson/loongson64c_4core_ls7a.dts
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/dts-v1/;
+
+#include "loongson64c-package.dtsi"
+#include "ls7a-pch.dtsi"
+
+/ {
+	compatible = "loongson,loongson64c-4core-ls7a";
+};
+
+&package0 {
+	htvec: interrupt-controller@efdfb000080 {
+		compatible = "loongson,htvec-1.0";
+		reg = <0xefd 0xfb000080 0x40>;
+		interrupt-controller;
+		#interrupt-cells = <1>;
+
+		interrupt-parent = <&liointc>;
+		interrupts = <24 IRQ_TYPE_LEVEL_HIGH>,
+			     <25 IRQ_TYPE_LEVEL_HIGH>,
+			     <26 IRQ_TYPE_LEVEL_HIGH>,
+			     <27 IRQ_TYPE_LEVEL_HIGH>;
+	};
+};
+
+&pch {
+	msi: msi-controller@2ff00000 {
+		compatible = "loongson,pch-msi-1.0";
+		reg = <0 0x2ff00000 0 0x8>;
+		interrupt-controller;
+		msi-controller;
+		loongson,msi-base-vec = <64>;
+		loongson,msi-num-vecs = <64>;
+		interrupt-parent = <&htvec>;
+	};
+};
diff --git a/arch/mips/boot/dts/loongson/loongson64c_4core_rs780e.dts b/arch/mips/boot/dts/loongson/loongson64c_4core_rs780e.dts
new file mode 100644
index 000000000..d681a295d
--- /dev/null
+++ b/arch/mips/boot/dts/loongson/loongson64c_4core_rs780e.dts
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/dts-v1/;
+
+#include "loongson64c-package.dtsi"
+#include "rs780e-pch.dtsi"
+
+/ {
+	compatible = "loongson,loongson64c-4core-rs780e";
+};
+
+&package0 {
+	htpic: interrupt-controller@efdfb000080 {
+		compatible = "loongson,htpic-1.0";
+		reg = <0xefd 0xfb000080 0x40>;
+		interrupt-controller;
+		#interrupt-cells = <1>;
+
+		interrupt-parent = <&liointc>;
+		interrupts = <24 IRQ_TYPE_LEVEL_HIGH>,
+				<25 IRQ_TYPE_LEVEL_HIGH>,
+				<26 IRQ_TYPE_LEVEL_HIGH>,
+				<27 IRQ_TYPE_LEVEL_HIGH>;
+	};
+};
diff --git a/arch/mips/boot/dts/loongson/loongson64c_8core_rs780e.dts b/arch/mips/boot/dts/loongson/loongson64c_8core_rs780e.dts
new file mode 100644
index 000000000..3c2044142
--- /dev/null
+++ b/arch/mips/boot/dts/loongson/loongson64c_8core_rs780e.dts
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/dts-v1/;
+
+#include "loongson64c-package.dtsi"
+#include "rs780e-pch.dtsi"
+
+/ {
+	compatible = "loongson,loongson64c-8core-rs780e";
+};
+
+&package0 {
+	htpic: interrupt-controller@1efdfb000080 {
+		compatible = "loongson,htpic-1.0";
+		reg = <0x1efd 0xfb000080 0x40>;
+		interrupt-controller;
+		#interrupt-cells = <1>;
+
+		interrupt-parent = <&liointc>;
+		interrupts = <24 IRQ_TYPE_LEVEL_HIGH>,
+				<25 IRQ_TYPE_LEVEL_HIGH>,
+				<26 IRQ_TYPE_LEVEL_HIGH>,
+				<27 IRQ_TYPE_LEVEL_HIGH>;
+	};
+};
diff --git a/arch/mips/boot/dts/loongson/loongson64g-package.dtsi b/arch/mips/boot/dts/loongson/loongson64g-package.dtsi
new file mode 100644
index 000000000..d4314f62c
--- /dev/null
+++ b/arch/mips/boot/dts/loongson/loongson64g-package.dtsi
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	cpuintc: interrupt-controller {
+		#address-cells = <0>;
+		#interrupt-cells = <1>;
+		interrupt-controller;
+		compatible = "mti,cpu-interrupt-controller";
+	};
+
+	package0: bus@1fe00000 {
+		compatible = "simple-bus";
+		#address-cells = <2>;
+		#size-cells = <1>;
+		ranges = <0 0x1fe00000 0 0x1fe00000 0x100000
+			0 0x3ff00000 0 0x3ff00000 0x100000
+			0xefd 0xfb000000 0xefd 0xfb000000 0x10000000>;
+
+		liointc: interrupt-controller@3ff01400 {
+			compatible = "loongson,liointc-1.0";
+			reg = <0 0x3ff01400 0x64>;
+
+			interrupt-controller;
+			#interrupt-cells = <2>;
+
+			interrupt-parent = <&cpuintc>;
+			interrupts = <2>, <3>;
+			interrupt-names = "int0", "int1";
+
+			loongson,parent_int_map = <0x00ffffff>, /* int0 */
+						<0xff000000>, /* int1 */
+						<0x00000000>, /* int2 */
+						<0x00000000>; /* int3 */
+
+		};
+
+		cpu_uart0: serial@1fe00100 {
+			compatible = "ns16550a";
+			reg = <0 0x1fe00100 0x10>;
+			clock-frequency = <100000000>;
+			interrupt-parent = <&liointc>;
+			interrupts = <10 IRQ_TYPE_LEVEL_HIGH>;
+			no-loopback-test;
+		};
+
+		cpu_uart1: serial@1fe00110 {
+			status = "disabled";
+			compatible = "ns16550a";
+			reg = <0 0x1fe00110 0x10>;
+			clock-frequency = <100000000>;
+			interrupts = <15 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-parent = <&liointc>;
+			no-loopback-test;
+		};
+	};
+};
diff --git a/arch/mips/boot/dts/loongson/loongson64g_4core_ls7a.dts b/arch/mips/boot/dts/loongson/loongson64g_4core_ls7a.dts
new file mode 100644
index 000000000..c945f8565
--- /dev/null
+++ b/arch/mips/boot/dts/loongson/loongson64g_4core_ls7a.dts
@@ -0,0 +1,41 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/dts-v1/;
+
+#include "loongson64g-package.dtsi"
+#include "ls7a-pch.dtsi"
+
+/ {
+	compatible = "loongson,loongson64g-4core-ls7a";
+};
+
+&package0 {
+	htvec: interrupt-controller@efdfb000080 {
+		compatible = "loongson,htvec-1.0";
+		reg = <0xefd 0xfb000080 0x40>;
+		interrupt-controller;
+		#interrupt-cells = <1>;
+
+		interrupt-parent = <&liointc>;
+		interrupts = <24 IRQ_TYPE_LEVEL_HIGH>,
+			     <25 IRQ_TYPE_LEVEL_HIGH>,
+			     <26 IRQ_TYPE_LEVEL_HIGH>,
+			     <27 IRQ_TYPE_LEVEL_HIGH>,
+			     <28 IRQ_TYPE_LEVEL_HIGH>,
+			     <29 IRQ_TYPE_LEVEL_HIGH>,
+			     <30 IRQ_TYPE_LEVEL_HIGH>,
+			     <31 IRQ_TYPE_LEVEL_HIGH>;
+	};
+};
+
+&pch {
+	msi: msi-controller@2ff00000 {
+		compatible = "loongson,pch-msi-1.0";
+		reg = <0 0x2ff00000 0 0x8>;
+		interrupt-controller;
+		msi-controller;
+		loongson,msi-base-vec = <64>;
+		loongson,msi-num-vecs = <192>;
+		interrupt-parent = <&htvec>;
+	};
+};
diff --git a/arch/mips/boot/dts/loongson/loongson64v_4core_virtio.dts b/arch/mips/boot/dts/loongson/loongson64v_4core_virtio.dts
new file mode 100644
index 000000000..d0588d81e
--- /dev/null
+++ b/arch/mips/boot/dts/loongson/loongson64v_4core_virtio.dts
@@ -0,0 +1,102 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/dts-v1/;
+/ {
+	compatible = "loongson,loongson64v-4core-virtio";
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	cpuintc: interrupt-controller {
+		#address-cells = <0>;
+		#interrupt-cells = <1>;
+		interrupt-controller;
+		compatible = "mti,cpu-interrupt-controller";
+	};
+
+	package0: bus@1fe00000 {
+		compatible = "simple-bus";
+		#address-cells = <2>;
+		#size-cells = <1>;
+		ranges = <0 0x1fe00000 0 0x1fe00000 0x100000
+			0 0x3ff00000 0 0x3ff00000 0x100000
+			0xefd 0xfb000000 0xefd 0xfb000000 0x10000000>;
+
+		liointc: interrupt-controller@3ff01400 {
+			compatible = "loongson,liointc-1.0";
+			reg = <0 0x3ff01400 0x64>;
+
+			interrupt-controller;
+			#interrupt-cells = <2>;
+
+			interrupt-parent = <&cpuintc>;
+			interrupts = <2>, <3>;
+			interrupt-names = "int0", "int1";
+
+			loongson,parent_int_map = <0x00000001>, /* int0 */
+						<0xfffffffe>, /* int1 */
+						<0x00000000>, /* int2 */
+						<0x00000000>; /* int3 */
+
+		};
+
+		cpu_uart0: serial@1fe001e0 {
+			compatible = "ns16550a";
+			reg = <0 0x1fe001e0 0x8>;
+			clock-frequency = <33000000>;
+			interrupt-parent = <&liointc>;
+			interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
+			no-loopback-test;
+		};
+	};
+
+	bus@10000000 {
+		compatible = "simple-bus";
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges = <0 0x10000000 0 0x10000000 0 0x10000000 /* PIO & CONF & APB */
+				0 0x40000000 0 0x40000000 0 0x40000000>; /* PCI MEM */
+
+		rtc0: rtc@10081000 {
+			compatible = "google,goldfish-rtc";
+			reg = <0 0x10081000 0 0x1000>;
+			interrupts = <1 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-parent = <&liointc>;
+		};
+
+		pci@1a000000 {
+			compatible = "pci-host-ecam-generic";
+			device_type = "pci";
+			#address-cells = <3>;
+			#size-cells = <2>;
+			#interrupt-cells = <1>;
+
+			bus-range = <0x0 0x1f>;
+			reg = <0 0x1a000000 0 0x02000000>;
+
+			ranges = <0x01000000 0x0 0x00004000 0x0 0x18004000 0x0 0x0000c000>,
+				 <0x02000000 0x0 0x40000000 0x0 0x40000000 0x0 0x40000000>;
+
+			interrupt-map = <
+				0x0000 0x0 0x0  0x1  &liointc  0x2 IRQ_TYPE_LEVEL_HIGH
+				0x0800 0x0 0x0  0x1  &liointc  0x3 IRQ_TYPE_LEVEL_HIGH
+				0x1000 0x0 0x0  0x1  &liointc  0x4 IRQ_TYPE_LEVEL_HIGH
+				0x1800 0x0 0x0  0x1  &liointc  0x5 IRQ_TYPE_LEVEL_HIGH
+				>;
+
+			interrupt-map-mask = <0x1800 0x0 0x0  0x7>;
+		};
+
+		isa@18000000 {
+			compatible = "isa";
+			#address-cells = <2>;
+			#size-cells = <1>;
+			ranges = <1 0 0 0x18000000 0x4000>;
+		};
+	};
+
+	hypervisor {
+		compatible = "linux,kvm";
+	};
+};
diff --git a/arch/mips/boot/dts/loongson/ls7a-pch.dtsi b/arch/mips/boot/dts/loongson/ls7a-pch.dtsi
new file mode 100644
index 000000000..2f45fce2c
--- /dev/null
+++ b/arch/mips/boot/dts/loongson/ls7a-pch.dtsi
@@ -0,0 +1,419 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/ {
+	pch: bus@10000000 {
+		compatible = "simple-bus";
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges = <0 0x10000000 0 0x10000000 0 0x10000000 /* PIO & CONF & APB */
+				0 0x20000000 0 0x20000000 0 0x10000000
+				0 0x40000000 0 0x40000000 0 0x40000000 /* PCI MEM */
+				0xe00 0x00000000 0xe00 0x00000000 0x100 0x0000000>;
+
+		pic: interrupt-controller@10000000 {
+			compatible = "loongson,pch-pic-1.0";
+			reg = <0 0x10000000 0 0x400>;
+			interrupt-controller;
+			interrupt-parent = <&htvec>;
+			loongson,pic-base-vec = <0>;
+			#interrupt-cells = <2>;
+		};
+
+		ls7a_uart0: serial@10080000 {
+			compatible = "ns16550a";
+			reg = <0 0x10080000 0 0x100>;
+			clock-frequency = <50000000>;
+			interrupt-parent = <&pic>;
+			interrupts = <8 IRQ_TYPE_LEVEL_HIGH>;
+			no-loopback-test;
+		};
+
+		ls7a_uart1: serial@10080100 {
+			status = "disabled";
+			compatible = "ns16550a";
+			reg = <0 0x10080100 0 0x100>;
+			clock-frequency = <50000000>;
+			interrupt-parent = <&pic>;
+			interrupts = <8 IRQ_TYPE_LEVEL_HIGH>;
+			no-loopback-test;
+		};
+
+		ls7a_uart2: serial@10080200 {
+			status = "disabled";
+			compatible = "ns16550a";
+			reg = <0 0x10080200 0 0x100>;
+			clock-frequency = <50000000>;
+			interrupt-parent = <&pic>;
+			interrupts = <8 IRQ_TYPE_LEVEL_HIGH>;
+			no-loopback-test;
+		};
+
+		ls7a_uart3: serial@10080300 {
+			status = "disabled";
+			compatible = "ns16550a";
+			reg = <0 0x10080300 0 0x100>;
+			clock-frequency = <50000000>;
+			interrupt-parent = <&pic>;
+			interrupts = <8 IRQ_TYPE_LEVEL_HIGH>;
+			no-loopback-test;
+		};
+
+		pci@1a000000 {
+			compatible = "loongson,ls7a-pci";
+			device_type = "pci";
+			#address-cells = <3>;
+			#size-cells = <2>;
+			#interrupt-cells = <2>;
+			msi-parent = <&msi>;
+
+			reg = <0 0x1a000000 0 0x02000000>,
+				<0xefe 0x00000000 0 0x20000000>;
+
+			ranges = <0x01000000 0x0 0x00020000 0x0 0x18020000 0x0 0x00020000>,
+				 <0x02000000 0x0 0x40000000 0x0 0x40000000 0x0 0x40000000>;
+
+			ohci@4,0 {
+				compatible = "pci0014,7a24.0",
+						   "pci0014,7a24",
+						   "pciclass0c0310",
+						   "pciclass0c03";
+
+				reg = <0x2000 0x0 0x0 0x0 0x0>;
+				interrupts = <49 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+			};
+
+			ehci@4,1 {
+				compatible = "pci0014,7a14.0",
+						   "pci0014,7a14",
+						   "pciclass0c0320",
+						   "pciclass0c03";
+
+				reg = <0x2100 0x0 0x0 0x0 0x0>;
+				interrupts = <48 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+			};
+
+			ohci@5,0 {
+				compatible = "pci0014,7a24.0",
+						   "pci0014,7a24",
+						   "pciclass0c0310",
+						   "pciclass0c03";
+
+				reg = <0x2800 0x0 0x0 0x0 0x0>;
+				interrupts = <51 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+			};
+
+			ehci@5,1 {
+				compatible = "pci0014,7a14.0",
+						   "pci0014,7a14",
+						   "pciclass0c0320",
+						   "pciclass0c03";
+
+				reg = <0x2900 0x0 0x0 0x0 0x0>;
+				interrupts = <50 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+			};
+
+			sata@8,0 {
+				compatible = "pci0014,7a08.0",
+						   "pci0014,7a08",
+						   "pciclass010601",
+						   "pciclass0106";
+
+				reg = <0x4000 0x0 0x0 0x0 0x0>;
+				interrupts = <16 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+			};
+
+			sata@8,1 {
+				compatible = "pci0014,7a08.0",
+						   "pci0014,7a08",
+						   "pciclass010601",
+						   "pciclass0106";
+
+				reg = <0x4100 0x0 0x0 0x0 0x0>;
+				interrupts = <17 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+			};
+
+			sata@8,2 {
+				compatible = "pci0014,7a08.0",
+						   "pci0014,7a08",
+						   "pciclass010601",
+						   "pciclass0106";
+
+				reg = <0x4200 0x0 0x0 0x0 0x0>;
+				interrupts = <18 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+			};
+
+			gpu@6,0 {
+				compatible = "pci0014,7a15.0",
+						   "pci0014,7a15",
+						   "pciclass030200",
+						   "pciclass0302";
+
+				reg = <0x3000 0x0 0x0 0x0 0x0>;
+				interrupts = <29 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+			};
+
+			dc@6,1 {
+				compatible = "pci0014,7a06.0",
+						   "pci0014,7a06",
+						   "pciclass030000",
+						   "pciclass0300";
+
+				reg = <0x3100 0x0 0x0 0x0 0x0>;
+				interrupts = <28 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+			};
+
+			hda@7,0 {
+				compatible = "pci0014,7a07.0",
+						   "pci0014,7a07",
+						   "pciclass040300",
+						   "pciclass0403";
+
+				reg = <0x3800 0x0 0x0 0x0 0x0>;
+				interrupts = <58 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+			};
+
+			gmac@3,0 {
+				compatible = "pci0014,7a03.0",
+						   "pci0014,7a03",
+						   "pciclass020000",
+						   "pciclass0200",
+						   "loongson, pci-gmac";
+
+				reg = <0x1800 0x0 0x0 0x0 0x0>;
+				interrupts = <12 IRQ_TYPE_LEVEL_HIGH>,
+					     <13 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-names = "macirq", "eth_lpi";
+				interrupt-parent = <&pic>;
+				phy-mode = "rgmii";
+				mdio {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					compatible = "snps,dwmac-mdio";
+					phy0: ethernet-phy@0 {
+						reg = <0>;
+					};
+				};
+			};
+
+			gmac@3,1 {
+				compatible = "pci0014,7a03.0",
+						   "pci0014,7a03",
+						   "pciclass020000",
+						   "pciclass0200",
+						   "loongson, pci-gmac";
+
+				reg = <0x1900 0x0 0x0 0x0 0x0>;
+				interrupts = <14 IRQ_TYPE_LEVEL_HIGH>,
+					     <15 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-names = "macirq", "eth_lpi";
+				interrupt-parent = <&pic>;
+				phy-mode = "rgmii";
+				mdio {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					compatible = "snps,dwmac-mdio";
+					phy1: ethernet-phy@1 {
+						reg = <0>;
+					};
+				};
+			};
+
+			pci_bridge@9,0 {
+				compatible = "pci0014,7a19.1",
+						   "pci0014,7a19",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x4800 0x0 0x0 0x0 0x0>;
+				interrupts = <32 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+
+				#interrupt-cells = <1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &pic 32 IRQ_TYPE_LEVEL_HIGH>;
+			};
+
+			pci_bridge@a,0 {
+				compatible = "pci0014,7a09.1",
+						   "pci0014,7a09",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x5000 0x0 0x0 0x0 0x0>;
+				interrupts = <33 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+
+				#interrupt-cells = <1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &pic 33 IRQ_TYPE_LEVEL_HIGH>;
+			};
+
+			pci_bridge@b,0 {
+				compatible = "pci0014,7a09.1",
+						   "pci0014,7a09",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x5800 0x0 0x0 0x0 0x0>;
+				interrupts = <34 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+
+				#interrupt-cells = <1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &pic 34 IRQ_TYPE_LEVEL_HIGH>;
+			};
+
+			pci_bridge@c,0 {
+				compatible = "pci0014,7a09.1",
+						   "pci0014,7a09",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x6000 0x0 0x0 0x0 0x0>;
+				interrupts = <35 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+
+				#interrupt-cells = <1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &pic 35 IRQ_TYPE_LEVEL_HIGH>;
+			};
+
+			pci_bridge@d,0 {
+				compatible = "pci0014,7a19.1",
+						   "pci0014,7a19",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x6800 0x0 0x0 0x0 0x0>;
+				interrupts = <36 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+
+				#interrupt-cells = <1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &pic 36 IRQ_TYPE_LEVEL_HIGH>;
+			};
+
+			pci_bridge@e,0 {
+				compatible = "pci0014,7a09.1",
+						   "pci0014,7a09",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x7000 0x0 0x0 0x0 0x0>;
+				interrupts = <37 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+
+				#interrupt-cells = <1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &pic 37 IRQ_TYPE_LEVEL_HIGH>;
+			};
+
+			pci_bridge@f,0 {
+				compatible = "pci0014,7a29.1",
+						   "pci0014,7a29",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x7800 0x0 0x0 0x0 0x0>;
+				interrupts = <40 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+
+				#interrupt-cells = <1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &pic 40 IRQ_TYPE_LEVEL_HIGH>;
+			};
+
+			pci_bridge@10,0 {
+				compatible = "pci0014,7a19.1",
+						   "pci0014,7a19",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x8000 0x0 0x0 0x0 0x0>;
+				interrupts = <41 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+
+				#interrupt-cells = <1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &pic 41 IRQ_TYPE_LEVEL_HIGH>;
+			};
+
+			pci_bridge@11,0 {
+				compatible = "pci0014,7a29.1",
+						   "pci0014,7a29",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x8800 0x0 0x0 0x0 0x0>;
+				interrupts = <42 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+
+				#interrupt-cells = <1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &pic 42 IRQ_TYPE_LEVEL_HIGH>;
+			};
+
+			pci_bridge@12,0 {
+				compatible = "pci0014,7a19.1",
+						   "pci0014,7a19",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x9000 0x0 0x0 0x0 0x0>;
+				interrupts = <43 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+
+				#interrupt-cells = <1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &pic 43 IRQ_TYPE_LEVEL_HIGH>;
+			};
+
+			pci_bridge@13,0 {
+				compatible = "pci0014,7a29.1",
+						   "pci0014,7a29",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x9800 0x0 0x0 0x0 0x0>;
+				interrupts = <38 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+
+				#interrupt-cells = <1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &pic 38 IRQ_TYPE_LEVEL_HIGH>;
+			};
+
+			pci_bridge@14,0 {
+				compatible = "pci0014,7a19.1",
+						   "pci0014,7a19",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0xa000 0x0 0x0 0x0 0x0>;
+				interrupts = <39 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+
+				#interrupt-cells = <1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &pic 39 IRQ_TYPE_LEVEL_HIGH>;
+			};
+		};
+
+		isa@18000000 {
+			compatible = "isa";
+			#address-cells = <2>;
+			#size-cells = <1>;
+			ranges = <1 0 0 0x18000000 0x20000>;
+		};
+	};
+};
diff --git a/arch/mips/boot/dts/loongson/rs780e-pch.dtsi b/arch/mips/boot/dts/loongson/rs780e-pch.dtsi
new file mode 100644
index 000000000..6f459511e
--- /dev/null
+++ b/arch/mips/boot/dts/loongson/rs780e-pch.dtsi
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/ {
+	bus@10000000 {
+		compatible = "simple-bus";
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges = <0 0x10000000 0 0x10000000 0 0x10000000
+				0 0x40000000 0 0x40000000 0 0x40000000
+				0xfd 0xfe000000 0xfd 0xfe000000  0 0x2000000 /* PCI Config Space */>;
+
+		pci@1a000000 {
+			compatible = "loongson,rs780e-pci";
+			device_type = "pci";
+			#address-cells = <3>;
+			#size-cells = <2>;
+
+			reg = <0 0x1a000000 0 0x02000000>;
+
+			ranges = <0x01000000 0 0x00004000 0 0x18004000 0 0x0000c000>,
+				 <0x02000000 0 0x40000000 0 0x40000000 0 0x40000000>;
+		};
+
+		isa@18000000 {
+			compatible = "isa";
+			#address-cells = <2>;
+			#size-cells = <1>;
+			ranges = <1 0 0 0x18000000 0x4000>;
+
+			rtc0: rtc@70 {
+				compatible = "motorola,mc146818";
+				reg = <1 0x70 0x8>;
+				interrupts = <8>;
+				interrupt-parent = <&htpic>;
+			};
+
+			acpi@800 {
+				compatible = "loongson,rs780e-acpi";
+				reg = <1 0x800 0x100>;
+			};
+		};
+	};
+};