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().
  ...

11 files changed, 520 insertions, 0 deletions

diff --git a/arch/sh/include/cpu-sh3/cpu/adc.h b/arch/sh/include/cpu-sh3/cpu/adc.h
new file mode 100644
index 000000000..2ee206c9b
--- /dev/null
+++ b/arch/sh/include/cpu-sh3/cpu/adc.h
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_CPU_SH3_ADC_H
+#define __ASM_CPU_SH3_ADC_H
+
+/*
+ * Copyright (C) 2004  Andriy Skulysh
+ */
+
+
+#define ADDRAH	0xa4000080
+#define ADDRAL	0xa4000082
+#define ADDRBH	0xa4000084
+#define ADDRBL	0xa4000086
+#define ADDRCH	0xa4000088
+#define ADDRCL	0xa400008a
+#define ADDRDH	0xa400008c
+#define ADDRDL	0xa400008e
+#define ADCSR	0xa4000090
+
+#define ADCSR_ADF	0x80
+#define ADCSR_ADIE	0x40
+#define ADCSR_ADST	0x20
+#define ADCSR_MULTI	0x10
+#define ADCSR_CKS	0x08
+#define ADCSR_CH_MASK	0x07
+
+#define ADCR	0xa4000092
+
+#endif /* __ASM_CPU_SH3_ADC_H */
diff --git a/arch/sh/include/cpu-sh3/cpu/cache.h b/arch/sh/include/cpu-sh3/cpu/cache.h
new file mode 100644
index 000000000..f57124826
--- /dev/null
+++ b/arch/sh/include/cpu-sh3/cpu/cache.h
@@ -0,0 +1,40 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * include/asm-sh/cpu-sh3/cache.h
+ *
+ * Copyright (C) 1999 Niibe Yutaka
+ */
+#ifndef __ASM_CPU_SH3_CACHE_H
+#define __ASM_CPU_SH3_CACHE_H
+
+#define L1_CACHE_SHIFT	4
+
+#define SH_CACHE_VALID		1
+#define SH_CACHE_UPDATED	2
+#define SH_CACHE_COMBINED	4
+#define SH_CACHE_ASSOC		8
+
+#define SH_CCR		0xffffffec	/* Address of Cache Control Register */
+
+#define CCR_CACHE_CE	0x01	/* Cache Enable */
+#define CCR_CACHE_WT	0x02	/* Write-Through (for P0,U0,P3) (else writeback) */
+#define CCR_CACHE_CB	0x04	/* Write-Back (for P1) (else writethrough) */
+#define CCR_CACHE_CF	0x08	/* Cache Flush */
+#define CCR_CACHE_ORA	0x20	/* RAM mode */
+
+#define CACHE_OC_ADDRESS_ARRAY	0xf0000000
+#define CACHE_PHYSADDR_MASK	0x1ffffc00
+
+#define CCR_CACHE_ENABLE	CCR_CACHE_CE
+#define CCR_CACHE_INVALIDATE	CCR_CACHE_CF
+
+#if defined(CONFIG_CPU_SUBTYPE_SH7705) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7710) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7720) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7721)
+#define CCR3_REG	0xa40000b4
+#define CCR_CACHE_16KB  0x00010000
+#define CCR_CACHE_32KB	0x00020000
+#endif
+
+#endif /* __ASM_CPU_SH3_CACHE_H */
diff --git a/arch/sh/include/cpu-sh3/cpu/dac.h b/arch/sh/include/cpu-sh3/cpu/dac.h
new file mode 100644
index 000000000..fd0233160
--- /dev/null
+++ b/arch/sh/include/cpu-sh3/cpu/dac.h
@@ -0,0 +1,42 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_CPU_SH3_DAC_H
+#define __ASM_CPU_SH3_DAC_H
+
+/*
+ * Copyright (C) 2003  Andriy Skulysh
+ */
+
+
+#define DADR0	0xa40000a0
+#define DADR1	0xa40000a2
+#define DACR	0xa40000a4
+#define DACR_DAOE1	0x80
+#define DACR_DAOE0	0x40
+#define DACR_DAE	0x20
+
+
+static __inline__ void sh_dac_enable(int channel)
+{
+	unsigned char v;
+	v = __raw_readb(DACR);
+	if(channel) v |= DACR_DAOE1;
+	else v |= DACR_DAOE0;
+	__raw_writeb(v,DACR);
+}
+
+static __inline__ void sh_dac_disable(int channel)
+{
+	unsigned char v;
+	v = __raw_readb(DACR);
+	if(channel) v &= ~DACR_DAOE1;
+	else v &= ~DACR_DAOE0;
+	__raw_writeb(v,DACR);
+}
+
+static __inline__ void sh_dac_output(u8 value, int channel)
+{
+	if(channel) __raw_writeb(value,DADR1);
+	else __raw_writeb(value,DADR0);
+}
+
+#endif /* __ASM_CPU_SH3_DAC_H */
diff --git a/arch/sh/include/cpu-sh3/cpu/dma-register.h b/arch/sh/include/cpu-sh3/cpu/dma-register.h
new file mode 100644
index 000000000..c0f921fb4
--- /dev/null
+++ b/arch/sh/include/cpu-sh3/cpu/dma-register.h
@@ -0,0 +1,38 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * SH3 CPU-specific DMA definitions, used by both DMA drivers
+ *
+ * Copyright (C) 2010 Guennadi Liakhovetski <g.liakhovetski@gmx.de>
+ */
+#ifndef CPU_DMA_REGISTER_H
+#define CPU_DMA_REGISTER_H
+
+#define CHCR_TS_LOW_MASK	0x18
+#define CHCR_TS_LOW_SHIFT	3
+#define CHCR_TS_HIGH_MASK	0
+#define CHCR_TS_HIGH_SHIFT	0
+
+#define DMAOR_INIT	DMAOR_DME
+
+/*
+ * The SuperH DMAC supports a number of transmit sizes, we list them here,
+ * with their respective values as they appear in the CHCR registers.
+ */
+enum {
+	XMIT_SZ_8BIT,
+	XMIT_SZ_16BIT,
+	XMIT_SZ_32BIT,
+	XMIT_SZ_128BIT,
+};
+
+/* log2(size / 8) - used to calculate number of transfers */
+#define TS_SHIFT {			\
+	[XMIT_SZ_8BIT]		= 0,	\
+	[XMIT_SZ_16BIT]		= 1,	\
+	[XMIT_SZ_32BIT]		= 2,	\
+	[XMIT_SZ_128BIT]	= 4,	\
+}
+
+#define TS_INDEX2VAL(i)	(((i) & 3) << CHCR_TS_LOW_SHIFT)
+
+#endif
diff --git a/arch/sh/include/cpu-sh3/cpu/dma.h b/arch/sh/include/cpu-sh3/cpu/dma.h
new file mode 100644
index 000000000..cd139681a
--- /dev/null
+++ b/arch/sh/include/cpu-sh3/cpu/dma.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_CPU_SH3_DMA_H
+#define __ASM_CPU_SH3_DMA_H
+
+#include <linux/sh_intc.h>
+
+#if defined(CONFIG_CPU_SUBTYPE_SH7720) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7721) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7710) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7712)
+#define SH_DMAC_BASE0	0xa4010020
+#else /* SH7705/06/07/09 */
+#define SH_DMAC_BASE0	0xa4000020
+#endif
+
+#define DMTE0_IRQ	evt2irq(0x800)
+#define DMTE4_IRQ	evt2irq(0xb80)
+
+#endif /* __ASM_CPU_SH3_DMA_H */
diff --git a/arch/sh/include/cpu-sh3/cpu/freq.h b/arch/sh/include/cpu-sh3/cpu/freq.h
new file mode 100644
index 000000000..7290f02b7
--- /dev/null
+++ b/arch/sh/include/cpu-sh3/cpu/freq.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * include/asm-sh/cpu-sh3/freq.h
+ *
+ * Copyright (C) 2002, 2003 Paul Mundt
+ */
+#ifndef __ASM_CPU_SH3_FREQ_H
+#define __ASM_CPU_SH3_FREQ_H
+
+#ifdef CONFIG_CPU_SUBTYPE_SH7712
+#define FRQCR			0xA415FF80
+#else
+#define FRQCR			0xffffff80
+#endif
+
+#define MIN_DIVISOR_NR		0
+#define MAX_DIVISOR_NR		4
+
+#define FRQCR_CKOEN	0x0100
+#define FRQCR_PLLEN	0x0080
+#define FRQCR_PSTBY	0x0040
+
+#endif /* __ASM_CPU_SH3_FREQ_H */
+
diff --git a/arch/sh/include/cpu-sh3/cpu/gpio.h b/arch/sh/include/cpu-sh3/cpu/gpio.h
new file mode 100644
index 000000000..aeb0588ac
--- /dev/null
+++ b/arch/sh/include/cpu-sh3/cpu/gpio.h
@@ -0,0 +1,78 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ *  include/asm-sh/cpu-sh3/gpio.h
+ *
+ *  Copyright (C) 2007  Markus Brunner, Mark Jonas
+ *
+ *  Addresses for the Pin Function Controller
+ */
+#ifndef _CPU_SH3_GPIO_H
+#define _CPU_SH3_GPIO_H
+
+#if defined(CONFIG_CPU_SUBTYPE_SH7720) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7721)
+
+/* Control registers */
+#define PORT_PACR	0xA4050100UL
+#define PORT_PBCR	0xA4050102UL
+#define PORT_PCCR	0xA4050104UL
+#define PORT_PDCR	0xA4050106UL
+#define PORT_PECR	0xA4050108UL
+#define PORT_PFCR	0xA405010AUL
+#define PORT_PGCR	0xA405010CUL
+#define PORT_PHCR	0xA405010EUL
+#define PORT_PJCR	0xA4050110UL
+#define PORT_PKCR	0xA4050112UL
+#define PORT_PLCR	0xA4050114UL
+#define PORT_PMCR	0xA4050116UL
+#define PORT_PPCR	0xA4050118UL
+#define PORT_PRCR	0xA405011AUL
+#define PORT_PSCR	0xA405011CUL
+#define PORT_PTCR	0xA405011EUL
+#define PORT_PUCR	0xA4050120UL
+#define PORT_PVCR	0xA4050122UL
+
+/* Data registers */
+#define PORT_PADR	0xA4050140UL
+/* Address of PORT_PBDR is wrong in the datasheet, see errata 2005-09-21 */
+#define PORT_PBDR	0xA4050142UL
+#define PORT_PCDR	0xA4050144UL
+#define PORT_PDDR	0xA4050146UL
+#define PORT_PEDR	0xA4050148UL
+#define PORT_PFDR	0xA405014AUL
+#define PORT_PGDR	0xA405014CUL
+#define PORT_PHDR	0xA405014EUL
+#define PORT_PJDR	0xA4050150UL
+#define PORT_PKDR	0xA4050152UL
+#define PORT_PLDR	0xA4050154UL
+#define PORT_PMDR	0xA4050156UL
+#define PORT_PPDR	0xA4050158UL
+#define PORT_PRDR	0xA405015AUL
+#define PORT_PSDR	0xA405015CUL
+#define PORT_PTDR	0xA405015EUL
+#define PORT_PUDR	0xA4050160UL
+#define PORT_PVDR	0xA4050162UL
+
+/* Pin Select Registers */
+#define PORT_PSELA	0xA4050124UL
+#define PORT_PSELB	0xA4050126UL
+#define PORT_PSELC	0xA4050128UL
+#define PORT_PSELD	0xA405012AUL
+
+#elif defined(CONFIG_CPU_SUBTYPE_SH7709)
+
+/* Control registers */
+#define PORT_PACR       0xa4000100UL
+#define PORT_PBCR       0xa4000102UL
+#define PORT_PCCR       0xa4000104UL
+#define PORT_PFCR       0xa400010aUL
+
+/* Data registers */
+#define PORT_PADR       0xa4000120UL
+#define PORT_PBDR       0xa4000122UL
+#define PORT_PCDR       0xa4000124UL
+#define PORT_PFDR       0xa400012aUL
+
+#endif
+
+#endif
diff --git a/arch/sh/include/cpu-sh3/cpu/mmu_context.h b/arch/sh/include/cpu-sh3/cpu/mmu_context.h
new file mode 100644
index 000000000..ead9a6f72
--- /dev/null
+++ b/arch/sh/include/cpu-sh3/cpu/mmu_context.h
@@ -0,0 +1,42 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * include/asm-sh/cpu-sh3/mmu_context.h
+ *
+ * Copyright (C) 1999 Niibe Yutaka
+ */
+#ifndef __ASM_CPU_SH3_MMU_CONTEXT_H
+#define __ASM_CPU_SH3_MMU_CONTEXT_H
+
+#define MMU_PTEH	0xFFFFFFF0	/* Page table entry register HIGH */
+#define MMU_PTEL	0xFFFFFFF4	/* Page table entry register LOW */
+#define MMU_TTB		0xFFFFFFF8	/* Translation table base register */
+#define MMU_TEA		0xFFFFFFFC	/* TLB Exception Address */
+
+#define MMUCR		0xFFFFFFE0	/* MMU Control Register */
+#define MMUCR_TI	(1 << 2)	/* TLB flush bit */
+
+#define MMU_TLB_ADDRESS_ARRAY	0xF2000000
+#define MMU_PAGE_ASSOC_BIT	0x80
+
+#define MMU_NTLB_ENTRIES	128	/* for 7708 */
+#define MMU_NTLB_WAYS		4
+#define MMU_CONTROL_INIT	0x007	/* SV=0, TF=1, IX=1, AT=1 */
+
+#define TRA	0xffffffd0
+#define EXPEVT	0xffffffd4
+
+#if defined(CONFIG_CPU_SUBTYPE_SH7705) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7706) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7707) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7709) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7710) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7712) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7720) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7721)
+#define INTEVT	0xa4000000	/* INTEVTE2(0xa4000000) */
+#else
+#define INTEVT	0xffffffd8
+#endif
+
+#endif /* __ASM_CPU_SH3_MMU_CONTEXT_H */
+
diff --git a/arch/sh/include/cpu-sh3/cpu/serial.h b/arch/sh/include/cpu-sh3/cpu/serial.h
new file mode 100644
index 000000000..7b2ce6e30
--- /dev/null
+++ b/arch/sh/include/cpu-sh3/cpu/serial.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __CPU_SH3_SERIAL_H
+#define __CPU_SH3_SERIAL_H
+
+#include <linux/serial_sci.h>
+
+extern struct plat_sci_port_ops sh770x_sci_port_ops;
+extern struct plat_sci_port_ops sh7710_sci_port_ops;
+extern struct plat_sci_port_ops sh7720_sci_port_ops;
+
+#endif /* __CPU_SH3_SERIAL_H */
diff --git a/arch/sh/include/cpu-sh3/cpu/sh7720.h b/arch/sh/include/cpu-sh3/cpu/sh7720.h
new file mode 100644
index 000000000..449790c9e
--- /dev/null
+++ b/arch/sh/include/cpu-sh3/cpu/sh7720.h
@@ -0,0 +1,175 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_SH7720_H__
+#define __ASM_SH7720_H__
+
+enum {
+	/* PTA */
+	GPIO_PTA7, GPIO_PTA6, GPIO_PTA5, GPIO_PTA4,
+	GPIO_PTA3, GPIO_PTA2, GPIO_PTA1, GPIO_PTA0,
+
+	/* PTB */
+	GPIO_PTB7, GPIO_PTB6, GPIO_PTB5, GPIO_PTB4,
+	GPIO_PTB3, GPIO_PTB2, GPIO_PTB1, GPIO_PTB0,
+
+	/* PTC */
+	GPIO_PTC7, GPIO_PTC6, GPIO_PTC5, GPIO_PTC4,
+	GPIO_PTC3, GPIO_PTC2, GPIO_PTC1, GPIO_PTC0,
+
+	/* PTD */
+	GPIO_PTD7, GPIO_PTD6, GPIO_PTD5, GPIO_PTD4,
+	GPIO_PTD3, GPIO_PTD2, GPIO_PTD1, GPIO_PTD0,
+
+	/* PTE */
+	GPIO_PTE6, GPIO_PTE5, GPIO_PTE4, GPIO_PTE3,
+	GPIO_PTE2, GPIO_PTE1, GPIO_PTE0,
+
+	/* PTF */
+	GPIO_PTF6, GPIO_PTF5, GPIO_PTF4, GPIO_PTF3,
+	GPIO_PTF2, GPIO_PTF1, GPIO_PTF0, GPIO_PTG6,
+
+	/* PTG */
+	GPIO_PTG5, GPIO_PTG4, GPIO_PTG3, GPIO_PTG2,
+	GPIO_PTG1, GPIO_PTG0,
+
+	/* PTH */
+	GPIO_PTH6, GPIO_PTH5, GPIO_PTH4, GPIO_PTH3,
+	GPIO_PTH2, GPIO_PTH1, GPIO_PTH0,
+
+	/* PTJ */
+	GPIO_PTJ6, GPIO_PTJ5, GPIO_PTJ4, GPIO_PTJ3,
+	GPIO_PTJ2, GPIO_PTJ1, GPIO_PTJ0,
+
+	/* PTK */
+	GPIO_PTK3, GPIO_PTK2, GPIO_PTK1, GPIO_PTK0,
+
+	/* PTL */
+	GPIO_PTL7, GPIO_PTL6, GPIO_PTL5, GPIO_PTL4, GPIO_PTL3,
+
+	/* PTM */
+	GPIO_PTM7, GPIO_PTM6, GPIO_PTM5, GPIO_PTM4,
+	GPIO_PTM3, GPIO_PTM2, GPIO_PTM1, GPIO_PTM0,
+
+	/* PTP */
+	GPIO_PTP4, GPIO_PTP3, GPIO_PTP2, GPIO_PTP1, GPIO_PTP0,
+
+	/* PTR */
+	GPIO_PTR7, GPIO_PTR6, GPIO_PTR5, GPIO_PTR4,
+	GPIO_PTR3, GPIO_PTR2, GPIO_PTR1, GPIO_PTR0,
+
+	/* PTS */
+	GPIO_PTS4, GPIO_PTS3, GPIO_PTS2, GPIO_PTS1, GPIO_PTS0,
+
+	/* PTT */
+	GPIO_PTT4, GPIO_PTT3, GPIO_PTT2, GPIO_PTT1, GPIO_PTT0,
+
+	/* PTU */
+	GPIO_PTU4, GPIO_PTU3, GPIO_PTU2, GPIO_PTU1, GPIO_PTU0,
+
+	/* PTV */
+	GPIO_PTV4, GPIO_PTV3, GPIO_PTV2, GPIO_PTV1, GPIO_PTV0,
+
+	/* BSC */
+	GPIO_FN_D31, GPIO_FN_D30, GPIO_FN_D29, GPIO_FN_D28,
+	GPIO_FN_D27, GPIO_FN_D26, GPIO_FN_D25, GPIO_FN_D24,
+	GPIO_FN_D23, GPIO_FN_D22, GPIO_FN_D21, GPIO_FN_D20,
+	GPIO_FN_D19, GPIO_FN_D18, GPIO_FN_D17, GPIO_FN_D16,
+	GPIO_FN_IOIS16, GPIO_FN_RAS, GPIO_FN_CAS, GPIO_FN_CKE,
+	GPIO_FN_CS5B_CE1A, GPIO_FN_CS6B_CE1B,
+	GPIO_FN_A25, GPIO_FN_A24, GPIO_FN_A23, GPIO_FN_A22,
+	GPIO_FN_A21, GPIO_FN_A20, GPIO_FN_A19, GPIO_FN_A0,
+	GPIO_FN_REFOUT, GPIO_FN_IRQOUT,
+
+	/* LCDC */
+	GPIO_FN_LCD_DATA15, GPIO_FN_LCD_DATA14,
+	GPIO_FN_LCD_DATA13, GPIO_FN_LCD_DATA12,
+	GPIO_FN_LCD_DATA11, GPIO_FN_LCD_DATA10,
+	GPIO_FN_LCD_DATA9, GPIO_FN_LCD_DATA8,
+	GPIO_FN_LCD_DATA7, GPIO_FN_LCD_DATA6,
+	GPIO_FN_LCD_DATA5, GPIO_FN_LCD_DATA4,
+	GPIO_FN_LCD_DATA3, GPIO_FN_LCD_DATA2,
+	GPIO_FN_LCD_DATA1, GPIO_FN_LCD_DATA0,
+	GPIO_FN_LCD_M_DISP,
+	GPIO_FN_LCD_CL1, GPIO_FN_LCD_CL2,
+	GPIO_FN_LCD_DON, GPIO_FN_LCD_FLM,
+	GPIO_FN_LCD_VEPWC, GPIO_FN_LCD_VCPWC,
+
+	/* AFEIF */
+	GPIO_FN_AFE_RXIN, GPIO_FN_AFE_RDET,
+	GPIO_FN_AFE_FS, GPIO_FN_AFE_TXOUT,
+	GPIO_FN_AFE_SCLK, GPIO_FN_AFE_RLYCNT,
+	GPIO_FN_AFE_HC1,
+
+	/* IIC */
+	GPIO_FN_IIC_SCL, GPIO_FN_IIC_SDA,
+
+	/* DAC */
+	GPIO_FN_DA1, GPIO_FN_DA0,
+
+	/* ADC */
+	GPIO_FN_AN3, GPIO_FN_AN2, GPIO_FN_AN1, GPIO_FN_AN0, GPIO_FN_ADTRG,
+
+	/* USB */
+	GPIO_FN_USB1D_RCV, GPIO_FN_USB1D_TXSE0,
+	GPIO_FN_USB1D_TXDPLS, GPIO_FN_USB1D_DMNS,
+	GPIO_FN_USB1D_DPLS, GPIO_FN_USB1D_SPEED,
+	GPIO_FN_USB1D_TXENL, GPIO_FN_USB2_PWR_EN,
+	GPIO_FN_USB1_PWR_EN_USBF_UPLUP, GPIO_FN_USB1D_SUSPEND,
+
+	/* INTC */
+	GPIO_FN_IRQ5, GPIO_FN_IRQ4,
+	GPIO_FN_IRQ3_IRL3, GPIO_FN_IRQ2_IRL2,
+	GPIO_FN_IRQ1_IRL1, GPIO_FN_IRQ0_IRL0,
+
+	/* PCC */
+	GPIO_FN_PCC_REG, GPIO_FN_PCC_DRV,
+	GPIO_FN_PCC_BVD2, GPIO_FN_PCC_BVD1,
+	GPIO_FN_PCC_CD2, GPIO_FN_PCC_CD1,
+	GPIO_FN_PCC_RESET, GPIO_FN_PCC_RDY,
+	GPIO_FN_PCC_VS2, GPIO_FN_PCC_VS1,
+
+	/* HUDI */
+	GPIO_FN_AUDATA3, GPIO_FN_AUDATA2, GPIO_FN_AUDATA1, GPIO_FN_AUDATA0,
+	GPIO_FN_AUDCK, GPIO_FN_AUDSYNC, GPIO_FN_ASEBRKAK, GPIO_FN_TRST,
+	GPIO_FN_TMS, GPIO_FN_TDO, GPIO_FN_TDI, GPIO_FN_TCK,
+
+	/* DMAC */
+	GPIO_FN_DACK1, GPIO_FN_DREQ1, GPIO_FN_DACK0, GPIO_FN_DREQ0,
+	GPIO_FN_TEND1, GPIO_FN_TEND0,
+
+	/* SIOF0 */
+	GPIO_FN_SIOF0_SYNC, GPIO_FN_SIOF0_MCLK,
+	GPIO_FN_SIOF0_TXD, GPIO_FN_SIOF0_RXD,
+	GPIO_FN_SIOF0_SCK,
+
+	/* SIOF1 */
+	GPIO_FN_SIOF1_SYNC, GPIO_FN_SIOF1_MCLK,
+	GPIO_FN_SIOF1_TXD, GPIO_FN_SIOF1_RXD,
+	GPIO_FN_SIOF1_SCK,
+
+	/* SCIF0 */
+	GPIO_FN_SCIF0_TXD, GPIO_FN_SCIF0_RXD,
+	GPIO_FN_SCIF0_RTS, GPIO_FN_SCIF0_CTS, GPIO_FN_SCIF0_SCK,
+
+	/* SCIF1 */
+	GPIO_FN_SCIF1_TXD, GPIO_FN_SCIF1_RXD,
+	GPIO_FN_SCIF1_RTS, GPIO_FN_SCIF1_CTS, GPIO_FN_SCIF1_SCK,
+
+	/* TPU */
+	GPIO_FN_TPU_TO1, GPIO_FN_TPU_TO0,
+	GPIO_FN_TPU_TI3B, GPIO_FN_TPU_TI3A,
+	GPIO_FN_TPU_TI2B, GPIO_FN_TPU_TI2A,
+	GPIO_FN_TPU_TO3, GPIO_FN_TPU_TO2,
+
+	/* SIM */
+	GPIO_FN_SIM_D, GPIO_FN_SIM_CLK, GPIO_FN_SIM_RST,
+
+	/* MMC */
+	GPIO_FN_MMC_DAT, GPIO_FN_MMC_CMD,
+	GPIO_FN_MMC_CLK, GPIO_FN_MMC_VDDON,
+	GPIO_FN_MMC_ODMOD,
+
+	/* SYSC */
+	GPIO_FN_STATUS0, GPIO_FN_STATUS1,
+};
+
+#endif /* __ASM_SH7720_H__ */
diff --git a/arch/sh/include/cpu-sh3/cpu/watchdog.h b/arch/sh/include/cpu-sh3/cpu/watchdog.h
new file mode 100644
index 000000000..9d7e9d986
--- /dev/null
+++ b/arch/sh/include/cpu-sh3/cpu/watchdog.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * include/asm-sh/cpu-sh3/watchdog.h
+ *
+ * Copyright (C) 2002, 2003 Paul Mundt
+ */
+#ifndef __ASM_CPU_SH3_WATCHDOG_H
+#define __ASM_CPU_SH3_WATCHDOG_H
+
+/* Register definitions */
+#define WTCNT		0xffffff84
+#define WTCSR		0xffffff86
+
+/* Bit definitions */
+#define WTCSR_TME	0x80
+#define WTCSR_WT	0x40
+#define WTCSR_RSTS	0x20
+#define WTCSR_WOVF	0x10
+#define WTCSR_IOVF	0x08
+
+#endif /* __ASM_CPU_SH3_WATCHDOG_H */
+