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, 724 insertions, 0 deletions

diff --git a/arch/arm/mach-orion5x/dns323-setup.c b/arch/arm/mach-orion5x/dns323-setup.c
new file mode 100644
index 000000000..d69259b6b
--- /dev/null
+++ b/arch/arm/mach-orion5x/dns323-setup.c
@@ -0,0 +1,724 @@
+/*
+ * arch/arm/mach-orion5x/dns323-setup.c
+ *
+ * Copyright (C) 2007 Herbert Valerio Riedel <hvr@gnu.org>
+ *
+ * Support for HW Rev C1:
+ *
+ * Copyright (C) 2010 Benjamin Herrenschmidt <benh@kernel.crashing.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ */
+#include <linux/gpio.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/pci.h>
+#include <linux/irq.h>
+#include <linux/mtd/physmap.h>
+#include <linux/mv643xx_eth.h>
+#include <linux/leds.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
+#include <linux/i2c.h>
+#include <linux/ata_platform.h>
+#include <linux/phy.h>
+#include <linux/marvell_phy.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/pci.h>
+#include <asm/system_info.h>
+#include <plat/orion-gpio.h>
+#include "orion5x.h"
+#include "common.h"
+#include "mpp.h"
+
+/* Rev A1 and B1 */
+#define DNS323_GPIO_LED_RIGHT_AMBER	1
+#define DNS323_GPIO_LED_LEFT_AMBER	2
+#define DNS323_GPIO_SYSTEM_UP		3
+#define DNS323_GPIO_LED_POWER1		4
+#define DNS323_GPIO_LED_POWER2		5
+#define DNS323_GPIO_OVERTEMP		6
+#define DNS323_GPIO_RTC			7
+#define DNS323_GPIO_POWER_OFF		8
+#define DNS323_GPIO_KEY_POWER		9
+#define DNS323_GPIO_KEY_RESET		10
+
+/* Rev C1 */
+#define DNS323C_GPIO_KEY_POWER		1
+#define DNS323C_GPIO_POWER_OFF		2
+#define DNS323C_GPIO_LED_RIGHT_AMBER	8
+#define DNS323C_GPIO_LED_LEFT_AMBER	9
+#define DNS323C_GPIO_LED_POWER		17
+#define DNS323C_GPIO_FAN_BIT1		18
+#define DNS323C_GPIO_FAN_BIT0		19
+
+/* Exposed to userspace, do not change */
+enum {
+	DNS323_REV_A1,	/* 0 */
+	DNS323_REV_B1,	/* 1 */
+	DNS323_REV_C1,	/* 2 */
+};
+
+
+/****************************************************************************
+ * PCI setup
+ */
+
+static int __init dns323_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	int irq;
+
+	/*
+	 * Check for devices with hard-wired IRQs.
+	 */
+	irq = orion5x_pci_map_irq(dev, slot, pin);
+	if (irq != -1)
+		return irq;
+
+	return -1;
+}
+
+static struct hw_pci dns323_pci __initdata = {
+	.nr_controllers = 2,
+	.setup		= orion5x_pci_sys_setup,
+	.scan		= orion5x_pci_sys_scan_bus,
+	.map_irq	= dns323_pci_map_irq,
+};
+
+static int __init dns323_pci_init(void)
+{
+	/* Rev B1 and C1 doesn't really use its PCI bus, and initialising PCI
+	 * gets in the way of initialising the SATA controller.
+	 */
+	if (machine_is_dns323() && system_rev == DNS323_REV_A1)
+		pci_common_init(&dns323_pci);
+
+	return 0;
+}
+
+subsys_initcall(dns323_pci_init);
+
+/****************************************************************************
+ * 8MiB NOR flash (Spansion S29GL064M90TFIR4)
+ *
+ * Layout as used by D-Link:
+ *  0x00000000-0x00010000 : "MTD1"
+ *  0x00010000-0x00020000 : "MTD2"
+ *  0x00020000-0x001a0000 : "Linux Kernel"
+ *  0x001a0000-0x007d0000 : "File System"
+ *  0x007d0000-0x00800000 : "u-boot"
+ */
+
+#define DNS323_NOR_BOOT_BASE 0xf4000000
+#define DNS323_NOR_BOOT_SIZE SZ_8M
+
+static struct mtd_partition dns323_partitions[] = {
+	{
+		.name	= "MTD1",
+		.size	= 0x00010000,
+		.offset	= 0,
+	}, {
+		.name	= "MTD2",
+		.size	= 0x00010000,
+		.offset = 0x00010000,
+	}, {
+		.name	= "Linux Kernel",
+		.size	= 0x00180000,
+		.offset	= 0x00020000,
+	}, {
+		.name	= "File System",
+		.size	= 0x00630000,
+		.offset	= 0x001A0000,
+	}, {
+		.name	= "u-boot",
+		.size	= 0x00030000,
+		.offset	= 0x007d0000,
+	},
+};
+
+static struct physmap_flash_data dns323_nor_flash_data = {
+	.width		= 1,
+	.parts		= dns323_partitions,
+	.nr_parts	= ARRAY_SIZE(dns323_partitions)
+};
+
+static struct resource dns323_nor_flash_resource = {
+	.flags		= IORESOURCE_MEM,
+	.start		= DNS323_NOR_BOOT_BASE,
+	.end		= DNS323_NOR_BOOT_BASE + DNS323_NOR_BOOT_SIZE - 1,
+};
+
+static struct platform_device dns323_nor_flash = {
+	.name		= "physmap-flash",
+	.id		= 0,
+	.dev		= {
+		.platform_data	= &dns323_nor_flash_data,
+	},
+	.resource	= &dns323_nor_flash_resource,
+	.num_resources	= 1,
+};
+
+/****************************************************************************
+ * Ethernet
+ */
+
+static struct mv643xx_eth_platform_data dns323_eth_data = {
+	.phy_addr = MV643XX_ETH_PHY_ADDR(8),
+};
+
+/* dns323_parse_hex_*() taken from tsx09-common.c; should a common copy of these
+ * functions be kept somewhere?
+ */
+static int __init dns323_parse_hex_nibble(char n)
+{
+	if (n >= '0' && n <= '9')
+		return n - '0';
+
+	if (n >= 'A' && n <= 'F')
+		return n - 'A' + 10;
+
+	if (n >= 'a' && n <= 'f')
+		return n - 'a' + 10;
+
+	return -1;
+}
+
+static int __init dns323_parse_hex_byte(const char *b)
+{
+	int hi;
+	int lo;
+
+	hi = dns323_parse_hex_nibble(b[0]);
+	lo = dns323_parse_hex_nibble(b[1]);
+
+	if (hi < 0 || lo < 0)
+		return -1;
+
+	return (hi << 4) | lo;
+}
+
+static int __init dns323_read_mac_addr(void)
+{
+	u_int8_t addr[6];
+	int i;
+	char *mac_page;
+
+	/* MAC address is stored as a regular ol' string in /dev/mtdblock4
+	 * (0x007d0000-0x00800000) starting at offset 196480 (0x2ff80).
+	 */
+	mac_page = ioremap(DNS323_NOR_BOOT_BASE + 0x7d0000 + 196480, 1024);
+	if (!mac_page)
+		return -ENOMEM;
+
+	/* Sanity check the string we're looking at */
+	for (i = 0; i < 5; i++) {
+		if (*(mac_page + (i * 3) + 2) != ':') {
+			goto error_fail;
+		}
+	}
+
+	for (i = 0; i < 6; i++)	{
+		int byte;
+
+		byte = dns323_parse_hex_byte(mac_page + (i * 3));
+		if (byte < 0) {
+			goto error_fail;
+		}
+
+		addr[i] = byte;
+	}
+
+	iounmap(mac_page);
+	printk("DNS-323: Found ethernet MAC address: %pM\n", addr);
+
+	memcpy(dns323_eth_data.mac_addr, addr, 6);
+
+	return 0;
+
+error_fail:
+	iounmap(mac_page);
+	return -EINVAL;
+}
+
+/****************************************************************************
+ * GPIO LEDs (simple - doesn't use hardware blinking support)
+ */
+
+static struct gpio_led dns323ab_leds[] = {
+	{
+		.name = "power:blue",
+		.gpio = DNS323_GPIO_LED_POWER2,
+		.default_trigger = "default-on",
+	}, {
+		.name = "right:amber",
+		.gpio = DNS323_GPIO_LED_RIGHT_AMBER,
+		.active_low = 1,
+	}, {
+		.name = "left:amber",
+		.gpio = DNS323_GPIO_LED_LEFT_AMBER,
+		.active_low = 1,
+	},
+};
+
+
+static struct gpio_led dns323c_leds[] = {
+	{
+		.name = "power:blue",
+		.gpio = DNS323C_GPIO_LED_POWER,
+		.default_trigger = "timer",
+		.active_low = 1,
+	}, {
+		.name = "right:amber",
+		.gpio = DNS323C_GPIO_LED_RIGHT_AMBER,
+		.active_low = 1,
+	}, {
+		.name = "left:amber",
+		.gpio = DNS323C_GPIO_LED_LEFT_AMBER,
+		.active_low = 1,
+	},
+};
+
+
+static struct gpio_led_platform_data dns323ab_led_data = {
+	.num_leds	= ARRAY_SIZE(dns323ab_leds),
+	.leds		= dns323ab_leds,
+	.gpio_blink_set = orion_gpio_led_blink_set,
+};
+
+static struct gpio_led_platform_data dns323c_led_data = {
+	.num_leds	= ARRAY_SIZE(dns323c_leds),
+	.leds		= dns323c_leds,
+	.gpio_blink_set = orion_gpio_led_blink_set,
+};
+
+static struct platform_device dns323_gpio_leds = {
+	.name		= "leds-gpio",
+	.id		= -1,
+	.dev		= {
+		.platform_data	= &dns323ab_led_data,
+	},
+};
+
+/****************************************************************************
+ * GPIO Attached Keys
+ */
+
+static struct gpio_keys_button dns323ab_buttons[] = {
+	{
+		.code		= KEY_RESTART,
+		.gpio		= DNS323_GPIO_KEY_RESET,
+		.desc		= "Reset Button",
+		.active_low	= 1,
+	}, {
+		.code		= KEY_POWER,
+		.gpio		= DNS323_GPIO_KEY_POWER,
+		.desc		= "Power Button",
+		.active_low	= 1,
+	},
+};
+
+static struct gpio_keys_platform_data dns323ab_button_data = {
+	.buttons	= dns323ab_buttons,
+	.nbuttons	= ARRAY_SIZE(dns323ab_buttons),
+};
+
+static struct gpio_keys_button dns323c_buttons[] = {
+	{
+		.code		= KEY_POWER,
+		.gpio		= DNS323C_GPIO_KEY_POWER,
+		.desc		= "Power Button",
+		.active_low	= 1,
+	},
+};
+
+static struct gpio_keys_platform_data dns323c_button_data = {
+	.buttons	= dns323c_buttons,
+	.nbuttons	= ARRAY_SIZE(dns323c_buttons),
+};
+
+static struct platform_device dns323_button_device = {
+	.name		= "gpio-keys",
+	.id		= -1,
+	.num_resources	= 0,
+	.dev		= {
+		.platform_data	= &dns323ab_button_data,
+	},
+};
+
+/*****************************************************************************
+ * SATA
+ */
+static struct mv_sata_platform_data dns323_sata_data = {
+       .n_ports        = 2,
+};
+
+/****************************************************************************
+ * General Setup
+ */
+static unsigned int dns323a_mpp_modes[] __initdata = {
+	MPP0_PCIE_RST_OUTn,
+	MPP1_GPIO,		/* right amber LED (sata ch0) */
+	MPP2_GPIO,		/* left amber LED (sata ch1) */
+	MPP3_UNUSED,
+	MPP4_GPIO,		/* power button LED */
+	MPP5_GPIO,		/* power button LED */
+	MPP6_GPIO,		/* GMT G751-2f overtemp */
+	MPP7_GPIO,		/* M41T80 nIRQ/OUT/SQW */
+	MPP8_GPIO,		/* triggers power off */
+	MPP9_GPIO,		/* power button switch */
+	MPP10_GPIO,		/* reset button switch */
+	MPP11_UNUSED,
+	MPP12_UNUSED,
+	MPP13_UNUSED,
+	MPP14_UNUSED,
+	MPP15_UNUSED,
+	MPP16_UNUSED,
+	MPP17_UNUSED,
+	MPP18_UNUSED,
+	MPP19_UNUSED,
+	0,
+};
+
+static unsigned int dns323b_mpp_modes[] __initdata = {
+	MPP0_UNUSED,
+	MPP1_GPIO,		/* right amber LED (sata ch0) */
+	MPP2_GPIO,		/* left amber LED (sata ch1) */
+	MPP3_GPIO,		/* system up flag */
+	MPP4_GPIO,		/* power button LED */
+	MPP5_GPIO,		/* power button LED */
+	MPP6_GPIO,		/* GMT G751-2f overtemp */
+	MPP7_GPIO,		/* M41T80 nIRQ/OUT/SQW */
+	MPP8_GPIO,		/* triggers power off */
+	MPP9_GPIO,		/* power button switch */
+	MPP10_GPIO,		/* reset button switch */
+	MPP11_UNUSED,
+	MPP12_SATA_LED,
+	MPP13_SATA_LED,
+	MPP14_SATA_LED,
+	MPP15_SATA_LED,
+	MPP16_UNUSED,
+	MPP17_UNUSED,
+	MPP18_UNUSED,
+	MPP19_UNUSED,
+	0,
+};
+
+static unsigned int dns323c_mpp_modes[] __initdata = {
+	MPP0_GPIO,		/* ? input */
+	MPP1_GPIO,		/* input power switch (0 = pressed) */
+	MPP2_GPIO,		/* output power off */
+	MPP3_UNUSED,		/* ? output */
+	MPP4_UNUSED,		/* ? output */
+	MPP5_UNUSED,		/* ? output */
+	MPP6_UNUSED,		/* ? output */
+	MPP7_UNUSED,		/* ? output */
+	MPP8_GPIO,		/* i/o right amber LED */
+	MPP9_GPIO,		/* i/o left amber LED */
+	MPP10_GPIO,		/* input */
+	MPP11_UNUSED,
+	MPP12_SATA_LED,
+	MPP13_SATA_LED,
+	MPP14_SATA_LED,
+	MPP15_SATA_LED,
+	MPP16_UNUSED,
+	MPP17_GPIO,		/* power button LED */
+	MPP18_GPIO,		/* fan speed bit 0 */
+	MPP19_GPIO,		/* fan speed bit 1 */
+	0,
+};
+
+/* Rev C1 Fan speed notes:
+ *
+ * The fan is controlled by 2 GPIOs on this board. The settings
+ * of the bits is as follow:
+ *
+ *  GPIO 18    GPIO 19    Fan
+ *
+ *    0          0        stopped
+ *    0          1        low speed
+ *    1          0        high speed
+ *    1          1        don't do that (*)
+ *
+ * (*) I think the two bits control two feed-in resistors into a fixed
+ *     PWN circuit, setting both bits will basically go a 'bit' faster
+ *     than high speed, but d-link doesn't do it and you may get out of
+ *     HW spec so don't do it.
+ */
+
+/*
+ * On the DNS-323 A1 and B1 the following devices are attached via I2C:
+ *
+ *  i2c addr | chip        | description
+ *  0x3e     | GMT G760Af  | fan speed PWM controller
+ *  0x48     | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible)
+ *  0x68     | ST M41T80   | RTC w/ alarm
+ */
+static struct i2c_board_info __initdata dns323ab_i2c_devices[] = {
+	{
+		I2C_BOARD_INFO("g760a", 0x3e),
+	}, {
+		I2C_BOARD_INFO("lm75", 0x48),
+	}, {
+		I2C_BOARD_INFO("m41t80", 0x68),
+	},
+};
+
+/*
+ * On the DNS-323 C1 the following devices are attached via I2C:
+ *
+ *  i2c addr | chip        | description
+ *  0x48     | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible)
+ *  0x68     | ST M41T80   | RTC w/ alarm
+ */
+static struct i2c_board_info __initdata dns323c_i2c_devices[] = {
+	{
+		I2C_BOARD_INFO("lm75", 0x48),
+	}, {
+		I2C_BOARD_INFO("m41t80", 0x68),
+	},
+};
+
+/* DNS-323 rev. A specific power off method */
+static void dns323a_power_off(void)
+{
+	pr_info("DNS-323: Triggering power-off...\n");
+	gpio_set_value(DNS323_GPIO_POWER_OFF, 1);
+}
+
+/* DNS-323 rev B specific power off method */
+static void dns323b_power_off(void)
+{
+	pr_info("DNS-323: Triggering power-off...\n");
+	/* Pin has to be changed to 1 and back to 0 to do actual power off. */
+	gpio_set_value(DNS323_GPIO_POWER_OFF, 1);
+	mdelay(100);
+	gpio_set_value(DNS323_GPIO_POWER_OFF, 0);
+}
+
+/* DNS-323 rev. C specific power off method */
+static void dns323c_power_off(void)
+{
+	pr_info("DNS-323: Triggering power-off...\n");
+	gpio_set_value(DNS323C_GPIO_POWER_OFF, 1);
+}
+
+static int dns323c_phy_fixup(struct phy_device *phy)
+{
+	phy->dev_flags |= MARVELL_PHY_M1118_DNS323_LEDS;
+
+	return 0;
+}
+
+static int __init dns323_identify_rev(void)
+{
+	u32 dev, rev, i, reg;
+
+	pr_debug("DNS-323: Identifying board ... \n");
+
+	/* Rev A1 has a 5181 */
+	orion5x_pcie_id(&dev, &rev);
+	if (dev == MV88F5181_DEV_ID) {
+		pr_debug("DNS-323: 5181 found, board is A1\n");
+		return DNS323_REV_A1;
+	}
+	pr_debug("DNS-323: 5182 found, board is B1 or C1, checking PHY...\n");
+
+	/* Rev B1 and C1 both have 5182, let's poke at the eth PHY. This is
+	 * a bit gross but we want to do that without links into the eth
+	 * driver so let's poke at it directly. We default to rev B1 in
+	 * case the accesses fail
+	 */
+
+#define ETH_SMI_REG		(ORION5X_ETH_VIRT_BASE + 0x2000 + 0x004)
+#define  SMI_BUSY		0x10000000
+#define  SMI_READ_VALID		0x08000000
+#define  SMI_OPCODE_READ	0x04000000
+#define  SMI_OPCODE_WRITE	0x00000000
+
+	for (i = 0; i < 1000; i++) {
+		reg = readl(ETH_SMI_REG);
+		if (!(reg & SMI_BUSY))
+			break;
+	}
+	if (i >= 1000) {
+		pr_warn("DNS-323: Timeout accessing PHY, assuming rev B1\n");
+		return DNS323_REV_B1;
+	}
+	writel((3 << 21)	/* phy ID reg */ |
+	       (8 << 16)	/* phy addr */ |
+	       SMI_OPCODE_READ, ETH_SMI_REG);
+	for (i = 0; i < 1000; i++) {
+		reg = readl(ETH_SMI_REG);
+		if (reg & SMI_READ_VALID)
+			break;
+	}
+	if (i >= 1000) {
+		pr_warn("DNS-323: Timeout reading PHY, assuming rev B1\n");
+		return DNS323_REV_B1;
+	}
+	pr_debug("DNS-323: Ethernet PHY ID 0x%x\n", reg & 0xffff);
+
+	/* Note: the Marvell tools mask the ID with 0x3f0 before comparison
+	 * but I don't see that making a difference here, at least with
+	 * any known Marvell PHY ID
+	 */
+	switch(reg & 0xfff0) {
+	case 0x0cc0: /* MV88E1111 */
+		return DNS323_REV_B1;
+	case 0x0e10: /* MV88E1118 */
+		return DNS323_REV_C1;
+	default:
+		pr_warn("DNS-323: Unknown PHY ID 0x%04x, assuming rev B1\n",
+			reg & 0xffff);
+	}
+	return DNS323_REV_B1;
+}
+
+static void __init dns323_init(void)
+{
+	/* Setup basic Orion functions. Need to be called early. */
+	orion5x_init();
+
+	/* Identify revision */
+	system_rev = dns323_identify_rev();
+	pr_info("DNS-323: Identified HW revision %c1\n", 'A' + system_rev);
+
+	/* Just to be tricky, the 5182 has a completely different
+	 * set of MPP modes to the 5181.
+	 */
+	switch(system_rev) {
+	case DNS323_REV_A1:
+		orion5x_mpp_conf(dns323a_mpp_modes);
+		writel(0, MPP_DEV_CTRL);		/* DEV_D[31:16] */
+		break;
+	case DNS323_REV_B1:
+		orion5x_mpp_conf(dns323b_mpp_modes);
+		break;
+	case DNS323_REV_C1:
+		orion5x_mpp_conf(dns323c_mpp_modes);
+		break;
+	}
+
+	/* setup flash mapping
+	 * CS3 holds a 8 MB Spansion S29GL064M90TFIR4
+	 */
+	mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET,
+				    ORION_MBUS_DEVBUS_BOOT_ATTR,
+				    DNS323_NOR_BOOT_BASE,
+				    DNS323_NOR_BOOT_SIZE);
+	platform_device_register(&dns323_nor_flash);
+
+	/* Sort out LEDs, Buttons and i2c devices */
+	switch(system_rev) {
+	case DNS323_REV_A1:
+		/* The 5181 power LED is active low and requires
+		 * DNS323_GPIO_LED_POWER1 to also be low.
+		 */
+		 dns323ab_leds[0].active_low = 1;
+		 gpio_request(DNS323_GPIO_LED_POWER1, "Power Led Enable");
+		 gpio_direction_output(DNS323_GPIO_LED_POWER1, 0);
+		fallthrough;
+	case DNS323_REV_B1:
+		i2c_register_board_info(0, dns323ab_i2c_devices,
+				ARRAY_SIZE(dns323ab_i2c_devices));
+		break;
+	case DNS323_REV_C1:
+		/* Hookup LEDs & Buttons */
+		dns323_gpio_leds.dev.platform_data = &dns323c_led_data;
+		dns323_button_device.dev.platform_data = &dns323c_button_data;
+
+		/* Hookup i2c devices and fan driver */
+		i2c_register_board_info(0, dns323c_i2c_devices,
+				ARRAY_SIZE(dns323c_i2c_devices));
+		platform_device_register_simple("dns323c-fan", 0, NULL, 0);
+
+		/* Register fixup for the PHY LEDs */
+		if (!IS_BUILTIN(CONFIG_PHYLIB))
+			break;
+		phy_register_fixup_for_uid(MARVELL_PHY_ID_88E1118,
+					   MARVELL_PHY_ID_MASK,
+					   dns323c_phy_fixup);
+	}
+
+	platform_device_register(&dns323_gpio_leds);
+	platform_device_register(&dns323_button_device);
+
+	/*
+	 * Configure peripherals.
+	 */
+	if (dns323_read_mac_addr() < 0)
+		printk("DNS-323: Failed to read MAC address\n");
+	orion5x_ehci0_init();
+	orion5x_eth_init(&dns323_eth_data);
+	orion5x_i2c_init();
+	orion5x_uart0_init();
+
+	/* Remaining GPIOs */
+	switch(system_rev) {
+	case DNS323_REV_A1:
+		/* Poweroff GPIO */
+		if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 ||
+		    gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0)
+			pr_err("DNS-323: failed to setup power-off GPIO\n");
+		pm_power_off = dns323a_power_off;
+		break;
+	case DNS323_REV_B1:
+		/* 5182 built-in SATA init */
+		orion5x_sata_init(&dns323_sata_data);
+
+		/* The DNS323 rev B1 has flag to indicate the system is up.
+		 * Without this flag set, power LED will flash and cannot be
+		 * controlled via leds-gpio.
+		 */
+		if (gpio_request(DNS323_GPIO_SYSTEM_UP, "SYS_READY") == 0)
+			gpio_direction_output(DNS323_GPIO_SYSTEM_UP, 1);
+
+		/* Poweroff GPIO */
+		if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 ||
+		    gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0)
+			pr_err("DNS-323: failed to setup power-off GPIO\n");
+		pm_power_off = dns323b_power_off;
+		break;
+	case DNS323_REV_C1:
+		/* 5182 built-in SATA init */
+		orion5x_sata_init(&dns323_sata_data);
+
+		/* Poweroff GPIO */
+		if (gpio_request(DNS323C_GPIO_POWER_OFF, "POWEROFF") != 0 ||
+		    gpio_direction_output(DNS323C_GPIO_POWER_OFF, 0) != 0)
+			pr_err("DNS-323: failed to setup power-off GPIO\n");
+		pm_power_off = dns323c_power_off;
+
+		/* Now, -this- should theoretically be done by the sata_mv driver
+		 * once I figure out what's going on there. Maybe the behaviour
+		 * of the LEDs should be somewhat passed via the platform_data.
+		 * for now, just whack the register and make the LEDs happy
+		 *
+		 * Note: AFAIK, rev B1 needs the same treatment but I'll let
+		 * somebody else test it.
+		 */
+		writel(0x5, ORION5X_SATA_VIRT_BASE + 0x2c);
+		break;
+	}
+}
+
+/* Warning: D-Link uses a wrong mach-type (=526) in their bootloader */
+MACHINE_START(DNS323, "D-Link DNS-323")
+	/* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */
+	.atag_offset	= 0x100,
+	.nr_irqs	= ORION5X_NR_IRQS,
+	.init_machine	= dns323_init,
+	.map_io		= orion5x_map_io,
+	.init_early	= orion5x_init_early,
+	.init_irq	= orion5x_init_irq,
+	.init_time	= orion5x_timer_init,
+	.fixup		= tag_fixup_mem32,
+	.restart	= orion5x_restart,
+MACHINE_END