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().
  ...

1 files changed, 592 insertions, 0 deletions

diff --git a/arch/mips/lantiq/xway/sysctrl.c b/arch/mips/lantiq/xway/sysctrl.c
new file mode 100644
index 000000000..d444a1b98
--- /dev/null
+++ b/arch/mips/lantiq/xway/sysctrl.c
@@ -0,0 +1,592 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *
+ *  Copyright (C) 2011-2012 John Crispin <john@phrozen.org>
+ *  Copyright (C) 2013-2015 Lantiq Beteiligungs-GmbH & Co.KG
+ */
+
+#include <linux/ioport.h>
+#include <linux/export.h>
+#include <linux/clkdev.h>
+#include <linux/spinlock.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/of_address.h>
+
+#include <lantiq_soc.h>
+
+#include "../clk.h"
+#include "../prom.h"
+
+/* clock control register for legacy */
+#define CGU_IFCCR	0x0018
+#define CGU_IFCCR_VR9	0x0024
+/* system clock register for legacy */
+#define CGU_SYS		0x0010
+/* pci control register */
+#define CGU_PCICR	0x0034
+#define CGU_PCICR_VR9	0x0038
+/* ephy configuration register */
+#define CGU_EPHY	0x10
+
+/* Legacy PMU register for ar9, ase, danube */
+/* power control register */
+#define PMU_PWDCR	0x1C
+/* power status register */
+#define PMU_PWDSR	0x20
+/* power control register */
+#define PMU_PWDCR1	0x24
+/* power status register */
+#define PMU_PWDSR1	0x28
+/* power control register */
+#define PWDCR(x) ((x) ? (PMU_PWDCR1) : (PMU_PWDCR))
+/* power status register */
+#define PWDSR(x) ((x) ? (PMU_PWDSR1) : (PMU_PWDSR))
+
+
+/* PMU register for ar10 and grx390 */
+
+/* First register set */
+#define PMU_CLK_SR	0x20 /* status */
+#define PMU_CLK_CR_A	0x24 /* Enable */
+#define PMU_CLK_CR_B	0x28 /* Disable */
+/* Second register set */
+#define PMU_CLK_SR1	0x30 /* status */
+#define PMU_CLK_CR1_A	0x34 /* Enable */
+#define PMU_CLK_CR1_B	0x38 /* Disable */
+/* Third register set */
+#define PMU_ANA_SR	0x40 /* status */
+#define PMU_ANA_CR_A	0x44 /* Enable */
+#define PMU_ANA_CR_B	0x48 /* Disable */
+
+/* Status */
+static u32 pmu_clk_sr[] = {
+	PMU_CLK_SR,
+	PMU_CLK_SR1,
+	PMU_ANA_SR,
+};
+
+/* Enable */
+static u32 pmu_clk_cr_a[] = {
+	PMU_CLK_CR_A,
+	PMU_CLK_CR1_A,
+	PMU_ANA_CR_A,
+};
+
+/* Disable */
+static u32 pmu_clk_cr_b[] = {
+	PMU_CLK_CR_B,
+	PMU_CLK_CR1_B,
+	PMU_ANA_CR_B,
+};
+
+#define PWDCR_EN_XRX(x)		(pmu_clk_cr_a[(x)])
+#define PWDCR_DIS_XRX(x)	(pmu_clk_cr_b[(x)])
+#define PWDSR_XRX(x)		(pmu_clk_sr[(x)])
+
+/* clock gates that we can en/disable */
+#define PMU_USB0_P	BIT(0)
+#define PMU_ASE_SDIO	BIT(2) /* ASE special */
+#define PMU_PCI		BIT(4)
+#define PMU_DMA		BIT(5)
+#define PMU_USB0	BIT(6)
+#define PMU_ASC0	BIT(7)
+#define PMU_EPHY	BIT(7)	/* ase */
+#define PMU_USIF	BIT(7) /* from vr9 until grx390 */
+#define PMU_SPI		BIT(8)
+#define PMU_DFE		BIT(9)
+#define PMU_EBU		BIT(10)
+#define PMU_STP		BIT(11)
+#define PMU_GPT		BIT(12)
+#define PMU_AHBS	BIT(13) /* vr9 */
+#define PMU_FPI		BIT(14)
+#define PMU_AHBM	BIT(15)
+#define PMU_SDIO	BIT(16) /* danube, ar9, vr9 */
+#define PMU_ASC1	BIT(17)
+#define PMU_PPE_QSB	BIT(18)
+#define PMU_PPE_SLL01	BIT(19)
+#define PMU_DEU		BIT(20)
+#define PMU_PPE_TC	BIT(21)
+#define PMU_PPE_EMA	BIT(22)
+#define PMU_PPE_DPLUM	BIT(23)
+#define PMU_PPE_DP	BIT(23)
+#define PMU_PPE_DPLUS	BIT(24)
+#define PMU_USB1_P	BIT(26)
+#define PMU_GPHY3	BIT(26) /* grx390 */
+#define PMU_USB1	BIT(27)
+#define PMU_SWITCH	BIT(28)
+#define PMU_PPE_TOP	BIT(29)
+#define PMU_GPHY0	BIT(29) /* ar10, xrx390 */
+#define PMU_GPHY	BIT(30)
+#define PMU_GPHY1	BIT(30) /* ar10, xrx390 */
+#define PMU_PCIE_CLK	BIT(31)
+#define PMU_GPHY2	BIT(31) /* ar10, xrx390 */
+
+#define PMU1_PCIE_PHY	BIT(0)	/* vr9-specific,moved in ar10/grx390 */
+#define PMU1_PCIE_CTL	BIT(1)
+#define PMU1_PCIE_PDI	BIT(4)
+#define PMU1_PCIE_MSI	BIT(5)
+#define PMU1_CKE	BIT(6)
+#define PMU1_PCIE1_CTL	BIT(17)
+#define PMU1_PCIE1_PDI	BIT(20)
+#define PMU1_PCIE1_MSI	BIT(21)
+#define PMU1_PCIE2_CTL	BIT(25)
+#define PMU1_PCIE2_PDI	BIT(26)
+#define PMU1_PCIE2_MSI	BIT(27)
+
+#define PMU_ANALOG_USB0_P	BIT(0)
+#define PMU_ANALOG_USB1_P	BIT(1)
+#define PMU_ANALOG_PCIE0_P	BIT(8)
+#define PMU_ANALOG_PCIE1_P	BIT(9)
+#define PMU_ANALOG_PCIE2_P	BIT(10)
+#define PMU_ANALOG_DSL_AFE	BIT(16)
+#define PMU_ANALOG_DCDC_2V5	BIT(17)
+#define PMU_ANALOG_DCDC_1VX	BIT(18)
+#define PMU_ANALOG_DCDC_1V0	BIT(19)
+
+#define pmu_w32(x, y)	ltq_w32((x), pmu_membase + (y))
+#define pmu_r32(x)	ltq_r32(pmu_membase + (x))
+
+static void __iomem *pmu_membase;
+void __iomem *ltq_cgu_membase;
+void __iomem *ltq_ebu_membase;
+
+static u32 ifccr = CGU_IFCCR;
+static u32 pcicr = CGU_PCICR;
+
+static DEFINE_SPINLOCK(g_pmu_lock);
+
+/* legacy function kept alive to ease clkdev transition */
+void ltq_pmu_enable(unsigned int module)
+{
+	int retry = 1000000;
+
+	spin_lock(&g_pmu_lock);
+	pmu_w32(pmu_r32(PMU_PWDCR) & ~module, PMU_PWDCR);
+	do {} while (--retry && (pmu_r32(PMU_PWDSR) & module));
+	spin_unlock(&g_pmu_lock);
+
+	if (!retry)
+		panic("activating PMU module failed!");
+}
+EXPORT_SYMBOL(ltq_pmu_enable);
+
+/* legacy function kept alive to ease clkdev transition */
+void ltq_pmu_disable(unsigned int module)
+{
+	int retry = 1000000;
+
+	spin_lock(&g_pmu_lock);
+	pmu_w32(pmu_r32(PMU_PWDCR) | module, PMU_PWDCR);
+	do {} while (--retry && (!(pmu_r32(PMU_PWDSR) & module)));
+	spin_unlock(&g_pmu_lock);
+
+	if (!retry)
+		pr_warn("deactivating PMU module failed!");
+}
+EXPORT_SYMBOL(ltq_pmu_disable);
+
+/* enable a hw clock */
+static int cgu_enable(struct clk *clk)
+{
+	ltq_cgu_w32(ltq_cgu_r32(ifccr) | clk->bits, ifccr);
+	return 0;
+}
+
+/* disable a hw clock */
+static void cgu_disable(struct clk *clk)
+{
+	ltq_cgu_w32(ltq_cgu_r32(ifccr) & ~clk->bits, ifccr);
+}
+
+/* enable a clock gate */
+static int pmu_enable(struct clk *clk)
+{
+	int retry = 1000000;
+
+	if (of_machine_is_compatible("lantiq,ar10")
+	    || of_machine_is_compatible("lantiq,grx390")) {
+		pmu_w32(clk->bits, PWDCR_EN_XRX(clk->module));
+		do {} while (--retry &&
+			     (!(pmu_r32(PWDSR_XRX(clk->module)) & clk->bits)));
+
+	} else {
+		spin_lock(&g_pmu_lock);
+		pmu_w32(pmu_r32(PWDCR(clk->module)) & ~clk->bits,
+				PWDCR(clk->module));
+		do {} while (--retry &&
+			     (pmu_r32(PWDSR(clk->module)) & clk->bits));
+		spin_unlock(&g_pmu_lock);
+	}
+
+	if (!retry)
+		panic("activating PMU module failed!");
+
+	return 0;
+}
+
+/* disable a clock gate */
+static void pmu_disable(struct clk *clk)
+{
+	int retry = 1000000;
+
+	if (of_machine_is_compatible("lantiq,ar10")
+	    || of_machine_is_compatible("lantiq,grx390")) {
+		pmu_w32(clk->bits, PWDCR_DIS_XRX(clk->module));
+		do {} while (--retry &&
+			     (pmu_r32(PWDSR_XRX(clk->module)) & clk->bits));
+	} else {
+		spin_lock(&g_pmu_lock);
+		pmu_w32(pmu_r32(PWDCR(clk->module)) | clk->bits,
+				PWDCR(clk->module));
+		do {} while (--retry &&
+			     (!(pmu_r32(PWDSR(clk->module)) & clk->bits)));
+		spin_unlock(&g_pmu_lock);
+	}
+
+	if (!retry)
+		pr_warn("deactivating PMU module failed!");
+}
+
+/* the pci enable helper */
+static int pci_enable(struct clk *clk)
+{
+	unsigned int val = ltq_cgu_r32(ifccr);
+	/* set bus clock speed */
+	if (of_machine_is_compatible("lantiq,ar9") ||
+			of_machine_is_compatible("lantiq,vr9")) {
+		val &= ~0x1f00000;
+		if (clk->rate == CLOCK_33M)
+			val |= 0xe00000;
+		else
+			val |= 0x700000; /* 62.5M */
+	} else {
+		val &= ~0xf00000;
+		if (clk->rate == CLOCK_33M)
+			val |= 0x800000;
+		else
+			val |= 0x400000; /* 62.5M */
+	}
+	ltq_cgu_w32(val, ifccr);
+	pmu_enable(clk);
+	return 0;
+}
+
+/* enable the external clock as a source */
+static int pci_ext_enable(struct clk *clk)
+{
+	ltq_cgu_w32(ltq_cgu_r32(ifccr) & ~(1 << 16), ifccr);
+	ltq_cgu_w32((1 << 30), pcicr);
+	return 0;
+}
+
+/* disable the external clock as a source */
+static void pci_ext_disable(struct clk *clk)
+{
+	ltq_cgu_w32(ltq_cgu_r32(ifccr) | (1 << 16), ifccr);
+	ltq_cgu_w32((1 << 31) | (1 << 30), pcicr);
+}
+
+/* enable a clockout source */
+static int clkout_enable(struct clk *clk)
+{
+	int i;
+
+	/* get the correct rate */
+	for (i = 0; i < 4; i++) {
+		if (clk->rates[i] == clk->rate) {
+			int shift = 14 - (2 * clk->module);
+			int enable = 7 - clk->module;
+			unsigned int val = ltq_cgu_r32(ifccr);
+
+			val &= ~(3 << shift);
+			val |= i << shift;
+			val |= enable;
+			ltq_cgu_w32(val, ifccr);
+			return 0;
+		}
+	}
+	return -1;
+}
+
+/* manage the clock gates via PMU */
+static void clkdev_add_pmu(const char *dev, const char *con, bool deactivate,
+			   unsigned int module, unsigned int bits)
+{
+	struct clk *clk = kzalloc(sizeof(struct clk), GFP_KERNEL);
+
+	if (!clk)
+		return;
+	clk->cl.dev_id = dev;
+	clk->cl.con_id = con;
+	clk->cl.clk = clk;
+	clk->enable = pmu_enable;
+	clk->disable = pmu_disable;
+	clk->module = module;
+	clk->bits = bits;
+	if (deactivate) {
+		/*
+		 * Disable it during the initialization. Module should enable
+		 * when used
+		 */
+		pmu_disable(clk);
+	}
+	clkdev_add(&clk->cl);
+}
+
+/* manage the clock generator */
+static void clkdev_add_cgu(const char *dev, const char *con,
+					unsigned int bits)
+{
+	struct clk *clk = kzalloc(sizeof(struct clk), GFP_KERNEL);
+
+	if (!clk)
+		return;
+	clk->cl.dev_id = dev;
+	clk->cl.con_id = con;
+	clk->cl.clk = clk;
+	clk->enable = cgu_enable;
+	clk->disable = cgu_disable;
+	clk->bits = bits;
+	clkdev_add(&clk->cl);
+}
+
+/* pci needs its own enable function as the setup is a bit more complex */
+static unsigned long valid_pci_rates[] = {CLOCK_33M, CLOCK_62_5M, 0};
+
+static void clkdev_add_pci(void)
+{
+	struct clk *clk = kzalloc(sizeof(struct clk), GFP_KERNEL);
+	struct clk *clk_ext = kzalloc(sizeof(struct clk), GFP_KERNEL);
+
+	/* main pci clock */
+	if (clk) {
+		clk->cl.dev_id = "17000000.pci";
+		clk->cl.con_id = NULL;
+		clk->cl.clk = clk;
+		clk->rate = CLOCK_33M;
+		clk->rates = valid_pci_rates;
+		clk->enable = pci_enable;
+		clk->disable = pmu_disable;
+		clk->module = 0;
+		clk->bits = PMU_PCI;
+		clkdev_add(&clk->cl);
+	}
+
+	/* use internal/external bus clock */
+	if (clk_ext) {
+		clk_ext->cl.dev_id = "17000000.pci";
+		clk_ext->cl.con_id = "external";
+		clk_ext->cl.clk = clk_ext;
+		clk_ext->enable = pci_ext_enable;
+		clk_ext->disable = pci_ext_disable;
+		clkdev_add(&clk_ext->cl);
+	}
+}
+
+/* xway socs can generate clocks on gpio pins */
+static unsigned long valid_clkout_rates[4][5] = {
+	{CLOCK_32_768K, CLOCK_1_536M, CLOCK_2_5M, CLOCK_12M, 0},
+	{CLOCK_40M, CLOCK_12M, CLOCK_24M, CLOCK_48M, 0},
+	{CLOCK_25M, CLOCK_40M, CLOCK_30M, CLOCK_60M, 0},
+	{CLOCK_12M, CLOCK_50M, CLOCK_32_768K, CLOCK_25M, 0},
+};
+
+static void clkdev_add_clkout(void)
+{
+	int i;
+
+	for (i = 0; i < 4; i++) {
+		struct clk *clk;
+		char *name;
+
+		name = kzalloc(sizeof("clkout0"), GFP_KERNEL);
+		if (!name)
+			continue;
+		sprintf(name, "clkout%d", i);
+
+		clk = kzalloc(sizeof(struct clk), GFP_KERNEL);
+		if (!clk) {
+			kfree(name);
+			continue;
+		}
+		clk->cl.dev_id = "1f103000.cgu";
+		clk->cl.con_id = name;
+		clk->cl.clk = clk;
+		clk->rate = 0;
+		clk->rates = valid_clkout_rates[i];
+		clk->enable = clkout_enable;
+		clk->module = i;
+		clkdev_add(&clk->cl);
+	}
+}
+
+/* bring up all register ranges that we need for basic system control */
+void __init ltq_soc_init(void)
+{
+	struct resource res_pmu, res_cgu, res_ebu;
+	struct device_node *np_pmu =
+			of_find_compatible_node(NULL, NULL, "lantiq,pmu-xway");
+	struct device_node *np_cgu =
+			of_find_compatible_node(NULL, NULL, "lantiq,cgu-xway");
+	struct device_node *np_ebu =
+			of_find_compatible_node(NULL, NULL, "lantiq,ebu-xway");
+
+	/* check if all the core register ranges are available */
+	if (!np_pmu || !np_cgu || !np_ebu)
+		panic("Failed to load core nodes from devicetree");
+
+	if (of_address_to_resource(np_pmu, 0, &res_pmu) ||
+			of_address_to_resource(np_cgu, 0, &res_cgu) ||
+			of_address_to_resource(np_ebu, 0, &res_ebu))
+		panic("Failed to get core resources");
+
+	of_node_put(np_pmu);
+	of_node_put(np_cgu);
+	of_node_put(np_ebu);
+
+	if (!request_mem_region(res_pmu.start, resource_size(&res_pmu),
+				res_pmu.name) ||
+		!request_mem_region(res_cgu.start, resource_size(&res_cgu),
+				res_cgu.name) ||
+		!request_mem_region(res_ebu.start, resource_size(&res_ebu),
+				res_ebu.name))
+		pr_err("Failed to request core resources");
+
+	pmu_membase = ioremap(res_pmu.start, resource_size(&res_pmu));
+	ltq_cgu_membase = ioremap(res_cgu.start,
+						resource_size(&res_cgu));
+	ltq_ebu_membase = ioremap(res_ebu.start,
+						resource_size(&res_ebu));
+	if (!pmu_membase || !ltq_cgu_membase || !ltq_ebu_membase)
+		panic("Failed to remap core resources");
+
+	/* make sure to unprotect the memory region where flash is located */
+	ltq_ebu_w32(ltq_ebu_r32(LTQ_EBU_BUSCON0) & ~EBU_WRDIS, LTQ_EBU_BUSCON0);
+
+	/* add our generic xway clocks */
+	clkdev_add_pmu("10000000.fpi", NULL, 0, 0, PMU_FPI);
+	clkdev_add_pmu("1e100a00.gptu", NULL, 1, 0, PMU_GPT);
+	clkdev_add_pmu("1e100bb0.stp", NULL, 1, 0, PMU_STP);
+	clkdev_add_pmu("1e100c00.serial", NULL, 0, 0, PMU_ASC1);
+	clkdev_add_pmu("1e104100.dma", NULL, 1, 0, PMU_DMA);
+	clkdev_add_pmu("1e100800.spi", NULL, 1, 0, PMU_SPI);
+	clkdev_add_pmu("1e105300.ebu", NULL, 0, 0, PMU_EBU);
+	clkdev_add_clkout();
+
+	/* add the soc dependent clocks */
+	if (of_machine_is_compatible("lantiq,vr9")) {
+		ifccr = CGU_IFCCR_VR9;
+		pcicr = CGU_PCICR_VR9;
+	} else {
+		clkdev_add_pmu("1e180000.etop", NULL, 1, 0, PMU_PPE);
+	}
+
+	if (!of_machine_is_compatible("lantiq,ase"))
+		clkdev_add_pci();
+
+	if (of_machine_is_compatible("lantiq,grx390") ||
+	    of_machine_is_compatible("lantiq,ar10")) {
+		clkdev_add_pmu("1e108000.switch", "gphy0", 0, 0, PMU_GPHY0);
+		clkdev_add_pmu("1e108000.switch", "gphy1", 0, 0, PMU_GPHY1);
+		clkdev_add_pmu("1e108000.switch", "gphy2", 0, 0, PMU_GPHY2);
+		clkdev_add_pmu("1f203018.usb2-phy", "phy", 1, 2, PMU_ANALOG_USB0_P);
+		clkdev_add_pmu("1f203034.usb2-phy", "phy", 1, 2, PMU_ANALOG_USB1_P);
+		/* rc 0 */
+		clkdev_add_pmu("1f106800.phy", "phy", 1, 2, PMU_ANALOG_PCIE0_P);
+		clkdev_add_pmu("1d900000.pcie", "msi", 1, 1, PMU1_PCIE_MSI);
+		clkdev_add_pmu("1f106800.phy", "pdi", 1, 1, PMU1_PCIE_PDI);
+		clkdev_add_pmu("1d900000.pcie", "ctl", 1, 1, PMU1_PCIE_CTL);
+		/* rc 1 */
+		clkdev_add_pmu("1f700400.phy", "phy", 1, 2, PMU_ANALOG_PCIE1_P);
+		clkdev_add_pmu("19000000.pcie", "msi", 1, 1, PMU1_PCIE1_MSI);
+		clkdev_add_pmu("1f700400.phy", "pdi", 1, 1, PMU1_PCIE1_PDI);
+		clkdev_add_pmu("19000000.pcie", "ctl", 1, 1, PMU1_PCIE1_CTL);
+	}
+
+	if (of_machine_is_compatible("lantiq,ase")) {
+		if (ltq_cgu_r32(CGU_SYS) & (1 << 5))
+			clkdev_add_static(CLOCK_266M, CLOCK_133M,
+						CLOCK_133M, CLOCK_266M);
+		else
+			clkdev_add_static(CLOCK_133M, CLOCK_133M,
+						CLOCK_133M, CLOCK_133M);
+		clkdev_add_pmu("1e101000.usb", "otg", 1, 0, PMU_USB0);
+		clkdev_add_pmu("1f203018.usb2-phy", "phy", 1, 0, PMU_USB0_P);
+		clkdev_add_pmu("1e180000.etop", "ppe", 1, 0, PMU_PPE);
+		clkdev_add_cgu("1e180000.etop", "ephycgu", CGU_EPHY);
+		clkdev_add_pmu("1e180000.etop", "ephy", 1, 0, PMU_EPHY);
+		clkdev_add_pmu("1e103000.sdio", NULL, 1, 0, PMU_ASE_SDIO);
+		clkdev_add_pmu("1e116000.mei", "dfe", 1, 0, PMU_DFE);
+	} else if (of_machine_is_compatible("lantiq,grx390")) {
+		clkdev_add_static(ltq_grx390_cpu_hz(), ltq_grx390_fpi_hz(),
+				  ltq_grx390_fpi_hz(), ltq_grx390_pp32_hz());
+		clkdev_add_pmu("1e108000.switch", "gphy3", 0, 0, PMU_GPHY3);
+		clkdev_add_pmu("1e101000.usb", "otg", 1, 0, PMU_USB0);
+		clkdev_add_pmu("1e106000.usb", "otg", 1, 0, PMU_USB1);
+		/* rc 2 */
+		clkdev_add_pmu("1f106a00.pcie", "phy", 1, 2, PMU_ANALOG_PCIE2_P);
+		clkdev_add_pmu("1a800000.pcie", "msi", 1, 1, PMU1_PCIE2_MSI);
+		clkdev_add_pmu("1f106a00.pcie", "pdi", 1, 1, PMU1_PCIE2_PDI);
+		clkdev_add_pmu("1a800000.pcie", "ctl", 1, 1, PMU1_PCIE2_CTL);
+		clkdev_add_pmu("1e10b308.eth", NULL, 0, 0, PMU_SWITCH | PMU_PPE_DP);
+		clkdev_add_pmu("1da00000.usif", "NULL", 1, 0, PMU_USIF);
+		clkdev_add_pmu("1e103100.deu", NULL, 1, 0, PMU_DEU);
+	} else if (of_machine_is_compatible("lantiq,ar10")) {
+		clkdev_add_static(ltq_ar10_cpu_hz(), ltq_ar10_fpi_hz(),
+				  ltq_ar10_fpi_hz(), ltq_ar10_pp32_hz());
+		clkdev_add_pmu("1e101000.usb", "otg", 1, 0, PMU_USB0);
+		clkdev_add_pmu("1e106000.usb", "otg", 1, 0, PMU_USB1);
+		clkdev_add_pmu("1e10b308.eth", NULL, 0, 0, PMU_SWITCH |
+			       PMU_PPE_DP | PMU_PPE_TC);
+		clkdev_add_pmu("1da00000.usif", "NULL", 1, 0, PMU_USIF);
+		clkdev_add_pmu("1e103100.deu", NULL, 1, 0, PMU_DEU);
+		clkdev_add_pmu("1e116000.mei", "afe", 1, 2, PMU_ANALOG_DSL_AFE);
+		clkdev_add_pmu("1e116000.mei", "dfe", 1, 0, PMU_DFE);
+	} else if (of_machine_is_compatible("lantiq,vr9")) {
+		clkdev_add_static(ltq_vr9_cpu_hz(), ltq_vr9_fpi_hz(),
+				ltq_vr9_fpi_hz(), ltq_vr9_pp32_hz());
+		clkdev_add_pmu("1f203018.usb2-phy", "phy", 1, 0, PMU_USB0_P);
+		clkdev_add_pmu("1e101000.usb", "otg", 1, 0, PMU_USB0 | PMU_AHBM);
+		clkdev_add_pmu("1f203034.usb2-phy", "phy", 1, 0, PMU_USB1_P);
+		clkdev_add_pmu("1e106000.usb", "otg", 1, 0, PMU_USB1 | PMU_AHBM);
+		clkdev_add_pmu("1f106800.phy", "phy", 1, 1, PMU1_PCIE_PHY);
+		clkdev_add_pmu("1d900000.pcie", "bus", 1, 0, PMU_PCIE_CLK);
+		clkdev_add_pmu("1d900000.pcie", "msi", 1, 1, PMU1_PCIE_MSI);
+		clkdev_add_pmu("1f106800.phy", "pdi", 1, 1, PMU1_PCIE_PDI);
+		clkdev_add_pmu("1d900000.pcie", "ctl", 1, 1, PMU1_PCIE_CTL);
+		clkdev_add_pmu(NULL, "ahb", 1, 0, PMU_AHBM | PMU_AHBS);
+
+		clkdev_add_pmu("1da00000.usif", "NULL", 1, 0, PMU_USIF);
+		clkdev_add_pmu("1e10b308.eth", NULL, 0, 0,
+				PMU_SWITCH | PMU_PPE_DPLUS | PMU_PPE_DPLUM |
+				PMU_PPE_EMA | PMU_PPE_TC | PMU_PPE_SLL01 |
+				PMU_PPE_QSB | PMU_PPE_TOP);
+		clkdev_add_pmu("1e108000.switch", "gphy0", 0, 0, PMU_GPHY);
+		clkdev_add_pmu("1e108000.switch", "gphy1", 0, 0, PMU_GPHY);
+		clkdev_add_pmu("1e103000.sdio", NULL, 1, 0, PMU_SDIO);
+		clkdev_add_pmu("1e103100.deu", NULL, 1, 0, PMU_DEU);
+		clkdev_add_pmu("1e116000.mei", "dfe", 1, 0, PMU_DFE);
+	} else if (of_machine_is_compatible("lantiq,ar9")) {
+		clkdev_add_static(ltq_ar9_cpu_hz(), ltq_ar9_fpi_hz(),
+				ltq_ar9_fpi_hz(), CLOCK_250M);
+		clkdev_add_pmu("1f203018.usb2-phy", "phy", 1, 0, PMU_USB0_P);
+		clkdev_add_pmu("1e101000.usb", "otg", 1, 0, PMU_USB0 | PMU_AHBM);
+		clkdev_add_pmu("1f203034.usb2-phy", "phy", 1, 0, PMU_USB1_P);
+		clkdev_add_pmu("1e106000.usb", "otg", 1, 0, PMU_USB1 | PMU_AHBM);
+		clkdev_add_pmu("1e180000.etop", "switch", 1, 0, PMU_SWITCH);
+		clkdev_add_pmu("1e103000.sdio", NULL, 1, 0, PMU_SDIO);
+		clkdev_add_pmu("1e103100.deu", NULL, 1, 0, PMU_DEU);
+		clkdev_add_pmu("1e116000.mei", "dfe", 1, 0, PMU_DFE);
+		clkdev_add_pmu("1e100400.serial", NULL, 1, 0, PMU_ASC0);
+	} else {
+		clkdev_add_static(ltq_danube_cpu_hz(), ltq_danube_fpi_hz(),
+				ltq_danube_fpi_hz(), ltq_danube_pp32_hz());
+		clkdev_add_pmu("1e101000.usb", "otg", 1, 0, PMU_USB0 | PMU_AHBM);
+		clkdev_add_pmu("1f203018.usb2-phy", "phy", 1, 0, PMU_USB0_P);
+		clkdev_add_pmu("1e103000.sdio", NULL, 1, 0, PMU_SDIO);
+		clkdev_add_pmu("1e103100.deu", NULL, 1, 0, PMU_DEU);
+		clkdev_add_pmu("1e116000.mei", "dfe", 1, 0, PMU_DFE);
+		clkdev_add_pmu("1e100400.serial", NULL, 1, 0, PMU_ASC0);
+	}
+}