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Message-ID: <48F7D4389F30BA4383F214EE802BA47101C2E160DC@EXS12.iai.co.il>
Date: Sun, 29 Nov 2020 13:51:22 +0000
From: Alayev Michael <malayev@....co.il>
To: 'Andrew Lunn' <andrew@...n.ch>
CC: "mic.al.linux@...il.com" <mic.al.linux@...il.com>,
"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: RE: net: dsa: mv88e6xxx : linux v5.4 crash
Hi Andrew,
Your last reply is attached bellow.
> So either of_phy_is_fixed_link(np) is returning false, or of_node_get(np) returns NULL.
> You need to do some debugging and figure out which and why.
I did some testing as you suggested.
zynq-7000 switch1 switch2
(cpu) mv88e6390x mv88e6390x
------- --------- ---------
| |rgmii | |sgmii| |
| gem0|------|p0 p10|-----|p10 |
| | | | | |
| | --------- ---------
| | |mdio_addr=2 | mdio_addr=3
| | | |
| |-------------------------
| | |
| | | mv88e1510(phy)
| | | mdio_addr=1 --------
| | ---------------| |
| | | |
| gem1|-------------------| |
| | | |
| | --------
-------
Here is my device tree:
&gem0 {
status = "okay";
fixed-link {
speed = <1000>;
full-duplex;
};
mdio1: mdio {
#address-cells = <1>;
#size-cells = <0>;
switch0: switch@2 {
compatible = "marvell,mv88e6190";
#address-cells = <1>;
#size-cells = <0>;
reg = <2>;
dsa,member = <0 0>;
ports {
#address-cells = <1>;
#size-cells = <0>;
switch0phy1: port@0 {
reg = <0>;
label = "uid208-cpu";
ethernet = <&gem0>;
phy-mode = "rgmii-id";
fixed-link {
speed = <1000>;
full-duplex;
};
};
port@1 {
reg = <1>;
label = "uid201-1A";
};
port@2 {
reg = <2>;
label = "uid202-2A-p9-1A";
phy-mode = "1000base-x";
fixed-link {
speed = <1000>;
full-duplex;
};
};
port@3 {
reg = <3>;
label = "uid203-3A-p9-2A";
phy-mode = "1000base-x";
fixed-link {
speed = <1000>;
full-duplex;
};
};
port@4 {
reg = <4>;
label = "uid204-4A-p9-3A";
phy-mode = "1000base-x";
fixed-link {
speed = <1000>;
full-duplex;
};
};
port@5 {
reg = <5>;
label = "uid205-5A";
};
port@6 {
reg = <6>;
label = "uid206-6A";
};
port@7 {
reg = <7>;
label = "uid207-7A";
};
port@8 {
reg = <8>;
label = "uid208-8A";
};
port@9 {
reg = <9>;
label = "uid209-9A-p9-0A";
phy-mode = "1000base-x";
fixed-link {
speed = <1000>;
full-duplex;
};
};
switch0port10: port@10 {
reg = <10>;
label = "dsa";
link = <&switch1port10>;
phy-mode = "1000base-x";
fixed-link {
speed = <1000>;
full-duplex;
};
};
};
};
switch1: switch@3 {
compatible = "marvell,mv88e6190";
#address-cells = <1>;
#size-cells = <0>;
reg = <3>;
dsa,member = <0 1>;
ports {
#address-cells = <1>;
#size-cells = <0>;
port@1 {
reg = <1>;
label = "uid211-1B";
};
port@2 {
reg = <2>;
label = "uid212-2B-p9-1B";
phy-mode = "1000base-x";
fixed-link {
speed = <1000>;
full-duplex;
};
};
port@3 {
reg = <3>;
label = "uid213-3B-p9-2B";
phy-mode = "1000base-x";
fixed-link {
speed = <1000>;
full-duplex;
};
};
port@4 {
reg = <4>;
label = "uid214-4B-p9-3B";
phy-mode = "1000base-x";
fixed-link {
speed = <1000>;
full-duplex;
};
};
port@5 {
reg = <5>;
label = "uid215-5B";
};
port@6 {
reg = <6>;
label = "uid216-6B";
};
port@7 {
reg = <7>;
label = "uid217-7B";
};
port@8 {
reg = <8>;
label = "uid218-8B";
};
port@9 {
reg = <9>;
label = "uid219-9B-p9-0B";
phy-mode = "1000base-x";
fixed-link {
speed = <1000>;
full-duplex;
};
};
switch1port10: port@10 {
reg = <10>;
label = "dsa";
link = <&switch0port10>;
phy-mode = "1000base-x";
fixed-link {
speed = <1000>;
full-duplex;
};
&gem0 {
status = "okay";
fixed-link {
speed = <1000>;
full-duplex;
};
mdio1: mdio {
#address-cells = <1>;
#size-cells = <0>;
switch0: switch@2 {
compatible = "marvell,mv88e6190";
#address-cells = <1>;
#size-cells = <0>;
reg = <2>;
dsa,member = <0 0>;
ports {
#address-cells = <1>;
#size-cells = <0>;
switch0phy1: port@0 {
reg = <0>;
label = "uid208-cpu";
ethernet = <&gem0>;
phy-mode = "rgmii-id";
fixed-link {
speed = <1000>;
full-duplex;
};
};
port@1 {
reg = <1>;
label = "uid201-1A";
};
port@2 {
reg = <2>;
label = "uid202-2A-p9-1A";
phy-mode = "1000base-x";
fixed-link {
speed = <1000>;
full-duplex;
};
};
port@3 {
reg = <3>;
label = "uid203-3A-p9-2A";
phy-mode = "1000base-x";
fixed-link {
speed = <1000>;
full-duplex;
};
};
port@4 {
reg = <4>;
label = "uid204-4A-p9-3A";
phy-mode = "1000base-x";
fixed-link {
speed = <1000>;
full-duplex;
};
};
port@5 {
reg = <5>;
label = "uid205-5A";
};
port@6 {
reg = <6>;
label = "uid206-6A";
};
port@7 {
reg = <7>;
label = "uid207-7A";
};
port@8 {
reg = <8>;
label = "uid208-8A";
};
port@9 {
reg = <9>;
label = "uid209-9A-p9-0A";
phy-mode = "1000base-x";
fixed-link {
speed = <1000>;
full-duplex;
};
};
switch0port10: port@10 {
reg = <10>;
label = "dsa";
link = <&switch1port10>;
phy-mode = "1000base-x";
fixed-link {
speed = <1000>;
full-duplex;
};
};
};
};
switch1: switch@3 {
compatible = "marvell,mv88e6190";
#address-cells = <1>;
#size-cells = <0>;
reg = <3>;
dsa,member = <0 1>;
ports {
#address-cells = <1>;
#size-cells = <0>;
port@1 {
reg = <1>;
label = "uid211-1B";
};
port@2 {
reg = <2>;
label = "uid212-2B-p9-1B";
phy-mode = "1000base-x";
fixed-link {
speed = <1000>;
full-duplex;
};
};
port@3 {
reg = <3>;
label = "uid213-3B-p9-2B";
phy-mode = "1000base-x";
fixed-link {
speed = <1000>;
full-duplex;
};
};
port@4 {
reg = <4>;
label = "uid214-4B-p9-3B";
phy-mode = "1000base-x";
fixed-link {
speed = <1000>;
full-duplex;
};
};
port@5 {
reg = <5>;
label = "uid215-5B";
};
port@6 {
reg = <6>;
label = "uid216-6B";
};
port@7 {
reg = <7>;
label = "uid217-7B";
};
port@8 {
reg = <8>;
label = "uid218-8B";
};
port@9 {
reg = <9>;
label = "uid219-9B-p9-0B";
phy-mode = "1000base-x";
fixed-link {
speed = <1000>;
full-duplex;
};
};
switch1port10: port@10 {
reg = <10>;
label = "dsa";
link = <&switch0port10>;
phy-mode = "1000base-x";
fixed-link {
speed = <1000>;
full-duplex;
};
};
};
};
};//mdio
};//gem0
Startup log:
...
[ 0.200787] smp: Brought up 1 node, 2 CPUs
[ 0.200818] SMP: Total of 2 processors activated (1333.33 BogoMIPS).
[ 0.200842] CPU: All CPU(s) started in SVC mode.
[ 0.201348] devtmpfs: initialized
[ 0.205447] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
[ 0.205889] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.205941] futex hash table entries: 512 (order: 3, 32768 bytes, linear)
[ 0.207074] pinctrl core: initialized pinctrl subsystem
[ 0.208109] NET: Registered protocol family 16
[ 0.212409] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.213490] cpuidle: using governor menu
[ 0.221459] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
[ 0.221499] hw-breakpoint: maximum watchpoint size is 4 bytes.
[ 0.221640] ==MICDBG: lib/devres.c devm_ioremap_resource 161 dev init name=(null) dev name=f800c000.ocmc res name=(null) res start=0xfffc0000
[ 0.221713] zynq-ocm f800c000.ocmc: ZYNQ OCM pool: 256 KiB @ 0x(ptrval)
[ 0.221754] ==MICDBG: lib/devres.c devm_ioremap_resource 161 dev init name=(null) dev name=f800c000.ocmc res name=ocmc@...0c000 res start=0xf800c000
[ 0.222377] e0000000.serial: ttyPS0 at MMIO 0xe0000000 (irq = 24, base_baud = 6249999) is a xuartps
[ 0.658312] printk: console [ttyPS0] enabled
[ 0.671689] vgaarb: loaded
[ 0.674789] SCSI subsystem initialized
[ 0.678785] usbcore: registered new interface driver usbfs
[ 0.684371] usbcore: registered new interface driver hub
[ 0.689780] usbcore: registered new device driver usb
[ 0.695094] pps_core: LinuxPPS API ver. 1 registered
[ 0.700062] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@...ux.it>
[ 0.709252] PTP clock support registered
[ 0.713226] EDAC MC: Ver: 3.0.0
[ 0.716777] FPGA manager framework
[ 0.721009] clocksource: Switched to clocksource arm_global_timer
[ 0.737084] NET: Registered protocol family 2
[ 0.742133] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes, linear)
[ 0.750538] TCP established hash table entries: 4096 (order: 2, 16384 bytes, linear)
[ 0.758380] TCP bind hash table entries: 4096 (order: 3, 32768 bytes, linear)
[ 0.765612] TCP: Hash tables configured (established 4096 bind 4096)
[ 0.772072] UDP hash table entries: 256 (order: 1, 8192 bytes, linear)
[ 0.778634] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes, linear)
[ 0.785825] NET: Registered protocol family 1
[ 0.790737] RPC: Registered named UNIX socket transport module.
[ 0.796675] RPC: Registered udp transport module.
[ 0.801409] RPC: Registered tcp transport module.
[ 0.806121] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.812586] PCI: CLS 0 bytes, default 64
[ 0.816729] Trying to unpack rootfs image as initramfs...
[ 1.690616] Freeing initrd memory: 10052K
[ 1.694849] hw perfevents: no interrupt-affinity property for /pmu@...91000, guessing.
[ 1.703047] hw perfevents: enabled with armv7_cortex_a9 PMU driver, 7 counters available
[ 1.712736] workingset: timestamp_bits=30 max_order=17 bucket_order=0
[ 1.720144] jffs2: version 2.2. (NAND) (SUMMARY) ?© 2001-2006 Red Hat, Inc.
[ 1.727465] io scheduler mq-deadline registered
[ 1.732023] io scheduler kyber registered
[ 1.736357] zynq-pinctrl 700.pinctrl: zynq pinctrl initialized
[ 1.742616] ==MICDBG: lib/devres.c devm_ioremap_resource 161 dev init name=(null) dev name=e000a000.gpio res name=gpio@...0a000 res start=0xe000a000
[ 1.757246] ==MICDBG: lib/devres.c devm_ioremap_resource 161 dev init name=(null) dev name=f8003000.dmac res name=dmac@...03000 res start=0xf8003000
[ 1.772010] dma-pl330 f8003000.dmac: Loaded driver for PL330 DMAC-241330
[ 1.778729] dma-pl330 f8003000.dmac: DBUFF-128x8bytes Num_Chans-8 Num_Peri-4 Num_Events-16
[ 1.796481] brd: module loaded
[ 1.805575] loop: module loaded
[ 1.809700] ==MICDBG: lib/devres.c devm_ioremap_resource 161 dev init name=(null) dev name=e000d000.spi res name=spi@...0d000 res start=0xe000d000
[ 1.824427] spi-nor spi0.0: s25fl256s1 (65536 Kbytes)
[ 1.829512] 1 fixed-partitions partitions found on MTD device spi0.0
[ 1.835900] Creating 1 MTD partitions on "spi0.0":
[ 1.840755] 0x000000000000-0x000004000000 : "qspi-flash"
[ 1.851056] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 381
[ 1.857932] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 395
[ 1.864769] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 400
[ 1.871601] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 403
[ 1.878400] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 416
[ 1.885213] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 419
[ 1.892023] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 1.898815] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=0
[ 1.906587] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=0
[ 1.914353] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 1.921170] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=1
[ 1.928923] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=1
[ 1.936687] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 1.943496] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=2
[ 1.951262] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=2
[ 1.959014] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 1.965821] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=3
[ 1.973586] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=3
[ 1.981352] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 1.988150] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=4
[ 1.995919] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=4
[ 2.003686] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.010493] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=5
[ 2.018249] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=5
[ 2.026020] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.032831] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=6
[ 2.040594] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=6
[ 2.048349] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.055155] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=7
[ 2.062921] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=7
[ 2.070685] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.077484] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=8
[ 2.085254] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=8
[ 2.093021] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.099817] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=9
[ 2.107627] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=9
[ 2.115403] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.122217] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=10
[ 2.130057] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=10
[ 2.137915] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.144724] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=11
[ 2.152576] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=11
[ 2.160427] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.167218] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=12
[ 2.175075] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=12
[ 2.182928] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.189725] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=13
[ 2.197582] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=13
[ 2.205436] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.212245] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=14
[ 2.220085] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=14
[ 2.227941] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.234754] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=15
[ 2.242614] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=15
[ 2.250466] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.257264] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=16
[ 2.265121] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=16
[ 2.272975] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.279771] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=17
[ 2.287628] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=17
[ 2.295482] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.302292] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=18
[ 2.310131] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=18
[ 2.317980] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.324797] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=19
[ 2.332653] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=19
[ 2.340503] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.347293] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=20
[ 2.355150] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=20
[ 2.363004] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.369800] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=21
[ 2.377657] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=21
[ 2.385511] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.392320] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=22
[ 2.400160] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=22
[ 2.408009] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.414820] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=23
[ 2.422679] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=23
[ 2.430533] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.437331] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=24
[ 2.445188] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=24
[ 2.453042] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.459838] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=25
[ 2.467695] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=25
[ 2.475549] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.482358] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=26
[ 2.490208] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=26
[ 2.498051] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.504857] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=27
[ 2.512710] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=27
[ 2.520567] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.527360] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=28
[ 2.535218] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=28
[ 2.543071] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.549867] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=29
[ 2.557724] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=29
[ 2.565578] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.572387] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=30
[ 2.580238] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=30
[ 2.588080] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.594886] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=31
[ 2.602738] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=31
[ 2.610589] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 433
[ 2.617381] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 436 bus name=Fixed MDIO Bus id=fixed-0
[ 2.627240] libphy: Fixed MDIO Bus: probed
[ 2.632114] CAN device driver interface
[ 2.636318] ==MICDBG: drivers/net/ethernet/cadence/macb_main.c macb_probe 4386 pdev name=e000b000.ethernet pdev id=-1 pdev resource name=ethernet@...0b000
[ 2.650363] ==MICDBG: drivers/net/ethernet/cadence/macb_main.c macb_probe 4387 dev init name=(null) driver_name=macb
[ 2.661112] ==MICDBG: lib/devres.c devm_ioremap_resource 161 dev init name=(null) dev name=e000b000.ethernet res name=ethernet@...0b000 res start=0xe000b000
[ 2.675414] ==MICDBG: drivers/net/ethernet/cadence/macb_main.c macb_probe 4425 after assign: dev name=eth%d, pdev init name=(null) pdev driver_name=macb
[ 2.689308] ==MICDBG: drivers/net/ethernet/cadence/macb_main.c macb_probe 4501
[ 2.697347] ==MICDBG: drivers/net/ethernet/cadence/macb_main.c macb_probe 4514
[ 2.704792] ==MICDBG: drivers/net/ethernet/cadence/macb_main.c macb_mii_init 650 MACB_mii_bus e000b000.ethernet ffffffff e000b000.ethernet-ffffffff
[ 2.718215] ==MICDBG: drivers/net/ethernet/cadence/macb_main.c macb_mii_init 655
[ 2.725812] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_register 214
[ 2.732199] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_register 229 MACB_mii_bus mdio mdio
[ 2.740578] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 381
[ 2.747455] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 395
[ 2.754266] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 400
[ 2.761104] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 403
[ 2.767900] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 416
[ 2.774711] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 419
[ 2.781523] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.788314] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.795124] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.801929] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.808721] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.815530] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.822336] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.829127] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.835945] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.842752] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.849543] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.856353] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.863158] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.869950] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.876759] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.883564] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.890367] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.897161] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.903970] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.910774] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.917568] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.924377] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.931190] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.937984] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.944794] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.951598] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.958390] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.965199] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.972005] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.978797] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.985606] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.992411] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.999204] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 433
[ 3.006015] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 436 bus name=MACB_mii_bus id=e000b000.ethernet-ffffffff
[ 3.017351] libphy: MACB_mii_bus: probed
[ 3.021287] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_register 246 MACB_mii_bus mdio mdio
[ 3.029654] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_register 249 MACB_mii_bus mdio mdio
[ 3.038040] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_child_is_phy 171
[ 3.044853] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_child_is_phy 174 NAME=switch
[ 3.052710] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_child_is_phy 177
[ 3.059418] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_child_is_phy 180
[ 3.066150] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_child_is_phy 188
[ 3.072868] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_child_is_phy 196
[ 3.079574] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_register 263 MACB_mii_bus mdio mdio switch switch@2
[ 3.089342] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_register_device 110
[ 3.130220] mv88e6085 e000b000.ethernet-ffffffff:02: switch 0xa10 detected: Marvell 88E6390X, revision 1
[ 4.840243] ==MICDBG: drivers/net/dsa/mv88e6xxx/chip.c mv88e6xxx_mdios_register 2973 switch switch@2
[ 4.849573] ==MICDBG: drivers/net/dsa/mv88e6xxx/chip.c mv88e6xxx_mdios_register 2980 child ptr=0x0
[ 4.858831] ==MICDBG: drivers/net/dsa/mv88e6xxx/chip.c mv88e6xxx_mdio_register 2924
[ 4.866700] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_register 214
[ 4.873074] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_register 218
[ 4.879430] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 381
[ 4.886329] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 395
[ 4.893149] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 400
[ 4.899944] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 403
[ 4.906753] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 416
[ 4.913557] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 419
[ 4.920359] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 4.927155] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=0
[ 5.310624] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=0
[ 5.318387] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 5.325199] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=1
[ 6.170659] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=1
[ 6.178421] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 6.185233] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=2
[ 7.030657] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=2
[ 7.038419] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 7.045229] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=3
[ 7.890658] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=3
[ 7.898426] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 7.905236] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=4
[ 8.750657] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=4
[ 8.758421] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 8.765233] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=5
[ 9.610660] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=5
[ 9.618428] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 9.625239] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=6
[ 10.470659] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=6
[ 10.478424] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 10.485236] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=7
[ 11.330660] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=7
[ 11.338421] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 11.345233] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=8
[ 12.190660] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=8
[ 12.198427] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 12.205238] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=9
[ 12.620620] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=9
[ 12.628377] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 12.635181] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=10
[ 13.050621] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=10
[ 13.058462] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 13.065267] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=11
[ 13.480621] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=11
[ 13.488471] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 13.495283] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=12
[ 13.910621] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=12
[ 13.918468] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 13.925272] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=13
[ 14.340621] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=13
[ 14.348466] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 14.355272] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=14
[ 14.770621] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=14
[ 14.778465] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 14.785269] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=15
[ 15.200621] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=15
[ 15.208465] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 15.215277] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=16
[ 15.630621] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=16
[ 15.638462] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 15.645267] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=17
[ 16.060620] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=17
[ 16.068460] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 16.075265] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=18
[ 16.490621] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=18
[ 16.498467] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 16.505272] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=19
[ 16.920621] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=19
[ 16.928466] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 16.935270] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=20
[ 17.350622] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=20
[ 17.358467] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 17.365278] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=21
[ 17.780621] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=21
[ 17.788463] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 17.795268] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=22
[ 18.210621] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=22
[ 18.218462] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 18.225275] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=23
[ 18.640622] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=23
[ 18.648469] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 18.655273] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=24
[ 19.070675] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=24
[ 19.078521] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 19.085335] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=25
[ 19.500622] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=25
[ 19.508466] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 19.515270] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=26
[ 19.930621] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=26
[ 19.938464] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 19.945269] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=27
[ 20.360622] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=27
[ 20.368463] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 20.375267] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=28
[ 20.790622] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=28
[ 20.798462] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 20.805266] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=29
[ 21.220623] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=29
[ 21.228470] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 21.235282] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=30
[ 21.650622] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=30
[ 21.658468] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 21.665272] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=31
[ 22.080622] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=31
[ 22.088466] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 433
[ 22.095272] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 436 bus name=mv88e6xxx SMI id=mv88e6xxx-0
[ 22.105387] libphy: mv88e6xxx SMI: probed
[ 22.109401] ==MICDBG: drivers/net/dsa/mv88e6xxx/chip.c mv88e6xxx_mdio_register 2932
[ 22.117249] ==MICDBG: drivers/net/dsa/mv88e6xxx/chip.c mv88e6xxx_mdio_register 2937
[ 22.125105] ==MICDBG: drivers/net/dsa/mv88e6xxx/chip.c mv88e6xxx_mdio_register 2941
[ 22.132952] ==MICDBG: drivers/net/dsa/mv88e6xxx/chip.c mv88e6xxx_mdios_register 2985
[ 22.140897] ==MICDBG: drivers/net/dsa/mv88e6xxx/chip.c mv88e6xxx_mdios_register 2991 ports (null)
[ 23.310393] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_register 249 MACB_mii_bus mdio mdio
[ 23.318770] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_child_is_phy 171
[ 23.325604] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_child_is_phy 174 NAME=switch
[ 23.333474] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_child_is_phy 177
[ 23.340200] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_child_is_phy 180
[ 23.346922] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_child_is_phy 188
[ 23.353646] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_child_is_phy 196
[ 23.360372] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_register 263 MACB_mii_bus mdio mdio switch switch@3
[ 23.370122] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_register_device 110
[ 23.410223] mv88e6085 e000b000.ethernet-ffffffff:03: switch 0xa10 detected: Marvell 88E6390X, revision 1
[ 25.120254] ==MICDBG: drivers/net/dsa/mv88e6xxx/chip.c mv88e6xxx_mdios_register 2973 switch switch@3
[ 25.129585] ==MICDBG: drivers/net/dsa/mv88e6xxx/chip.c mv88e6xxx_mdios_register 2980 child ptr=0x0
[ 25.138845] ==MICDBG: drivers/net/dsa/mv88e6xxx/chip.c mv88e6xxx_mdio_register 2924
[ 25.146713] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_register 214
[ 25.153174] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_register 218
[ 25.159541] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 381
[ 25.166439] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 395
[ 25.173257] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 400
[ 25.180052] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 403
[ 25.186862] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 416
[ 25.193665] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 419
[ 25.200468] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 25.207263] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=0
[ 25.600218] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=0
[ 25.607971] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 25.614779] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=1
[ 26.450663] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=1
[ 26.458427] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 26.465237] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=2
[ 27.310664] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=2
[ 27.318432] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 27.325243] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=3
[ 28.170663] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=3
[ 28.178428] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 28.185239] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=4
[ 29.030662] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=4
[ 29.038425] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 29.045236] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=5
[ 29.890663] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=5
[ 29.898433] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 29.905242] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=6
[ 30.750664] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=6
[ 30.758428] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 30.765239] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=7
[ 31.610667] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=7
[ 31.618436] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 31.625245] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=8
[ 32.470664] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=8
[ 32.478432] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 32.485242] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=9
[ 32.900625] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=9
[ 32.908381] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 32.915185] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=10
[ 33.330625] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=10
[ 33.338469] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 33.345280] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=11
[ 33.760624] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=11
[ 33.768465] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 33.775270] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=12
[ 34.190624] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=12
[ 34.198472] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 34.205277] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=13
[ 34.620625] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=13
[ 34.628471] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 34.635275] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=14
[ 35.050624] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=14
[ 35.058470] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 35.065273] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=15
[ 35.480625] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=15
[ 35.488468] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 35.495282] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=16
[ 35.910625] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=16
[ 35.918466] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 35.925271] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=17
[ 36.340626] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=17
[ 36.348473] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 36.355279] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=18
[ 36.770625] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=18
[ 36.778471] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 36.785276] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=19
[ 37.200626] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=19
[ 37.208471] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 37.215284] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=20
[ 37.630643] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=20
[ 37.638486] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 37.645292] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=21
[ 38.060626] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=21
[ 38.068467] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 38.075272] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=22
[ 38.490625] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=22
[ 38.498466] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 38.505271] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=23
[ 38.920625] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=23
[ 38.928472] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 38.935278] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=24
[ 39.350626] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=24
[ 39.358472] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 39.365285] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=25
[ 39.780626] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=25
[ 39.788470] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 39.795275] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=26
[ 40.210626] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=26
[ 40.218468] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 40.225273] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=27
[ 40.640626] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=27
[ 40.648467] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 40.655271] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=28
[ 41.070680] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=28
[ 41.078527] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 41.085342] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=29
[ 41.500627] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=29
[ 41.508473] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 41.515277] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=30
[ 41.930627] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=30
[ 41.938472] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 41.945276] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=31
[ 42.360627] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=31
[ 42.368470] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 433
[ 42.375276] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 436 bus name=mv88e6xxx SMI id=mv88e6xxx-1
[ 42.385391] libphy: mv88e6xxx SMI: probed
[ 42.389405] ==MICDBG: drivers/net/dsa/mv88e6xxx/chip.c mv88e6xxx_mdio_register 2932
[ 42.397253] ==MICDBG: drivers/net/dsa/mv88e6xxx/chip.c mv88e6xxx_mdio_register 2937
[ 42.405100] ==MICDBG: drivers/net/dsa/mv88e6xxx/chip.c mv88e6xxx_mdio_register 2941
[ 42.412947] ==MICDBG: drivers/net/dsa/mv88e6xxx/chip.c mv88e6xxx_mdios_register 2985
[ 42.420894] ==MICDBG: drivers/net/dsa/mv88e6xxx/chip.c mv88e6xxx_mdios_register 2991 ports (null)
[ 42.430255] MLM miiMarv Device Created!
[ 42.430317] ==MICDBG: drivers/net/ethernet/cadence/macb_main.c macb_mii_init 685
[ 42.441784] ==MICDBG: drivers/net/ethernet/cadence/macb_main.c macb_mii_probe 516
[ 42.449453] ==MICDBG: drivers/of/of_mdio.c of_phy_is_fixed_link 468
[ 42.455912] ==MICDBG: drivers/net/ethernet/cadence/macb_main.c macb_mii_probe 520
[ 42.463589] ==MICDBG: drivers/net/ethernet/cadence/macb_main.c macb_mii_probe 551 phy_node_name=ethernet@...0b000
[ 42.474049] ==MICDBG: drivers/of/of_mdio.c of_phy_find_device 323
[ 42.480321] ==MICDBG: drivers/of/of_mdio.c of_phy_find_device 326
[ 42.486608] ==MICDBG: drivers/of/of_mdio.c of_phy_find_device 328
[ 42.492893] ==MICDBG: drivers/of/of_mdio.c of_phy_find_device 338
[ 42.499166] ==MICDBG: drivers/of/of_mdio.c of_phy_connect 363
[ 42.505096] ==MICDBG: drivers/net/ethernet/cadence/macb_main.c macb_mii_init 695
[ 42.512859] 8<--- cut here ---
[ 42.515917] Unable to handle kernel NULL pointer dereference at virtual address 00000004
[ 42.524029] pgd = (ptrval)
[ 42.526736] [00000004] *pgd=00000000
[ 42.530316] Internal error: Oops - BUG: 17 [#1] PREEMPT SMP ARM
[ 42.536235] Modules linked in:
[ 42.539292] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.4.0-MESC #108
[ 42.545732] Hardware name: Xilinx Zynq Platform
[ 42.550272] PC is at dsa_unregister_switch+0x10/0x74
[ 42.555249] LR is at atomic_cmpxchg_relaxed+0xc/0x28
[ 42.560220] pc : [<c05ac9b4>] lr : [<c014d814>] psr: 600b0013
[ 42.566488] sp : df443d38 ip : 00000000 fp : c06441b4
[ 42.571711] r10: ffffffed r9 : dfbe9cb0 r8 : df475c10
[ 42.576937] r7 : 00000000 r6 : 00000000 r5 : 00000000 r4 : df430040
[ 42.583467] r3 : 53071d90 r2 : 53071d90 r1 : 00000000 r0 : 00000001
[ 42.590004] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
[ 42.597149] Control: 18c5387d Table: 1ec9004a DAC: 00000051
[ 42.602900] Process swapper/0 (pid: 1, stack limit = 0x(ptrval))
[ 42.608907] Stack: (0xdf443d38 to 0xdf444000)
[ 42.613264] 3d20: df430040 c091d718
[ 42.621455] 3d40: 00000000 c042cb60 dec77800 c0425904 dec77800 c03cb4f4 dec77800 df480230
[ 42.629648] 3d60: c091b230 dec0f078 df475c10 c03ca238 dec77800 dec77844 c0903c48 c03c7158
[ 42.637842] 3d80: dec0f2c4 c04250e0 a00b0013 dec0f250 dec0f2c4 53071d90 dec77800 dec77800
[ 42.646036] 3da0: dec0f254 dec0f2c4 df475c10 c042584c dec0f000 c04250d4 df5cc000 df5c8000
[ 42.654230] 3dc0: c0948a88 df5c8500 df475c10 c043b380 c07155e9 df470600 ffffffff dec0f008
[ 42.662423] 3de0: 00000000 dfbe9900 dfbe9900 00000001 c0437cc0 00000002 dec09140 dec09100
[ 42.670617] 3e00: dec090c0 00000000 00000000 c0703832 dec13268 53071d90 00000000 00000000
[ 42.678811] 3e20: df475c10 c091d8dc 00000000 c091d8dc 00000000 fffffdfb 00000000 c03cc720
[ 42.687005] 3e40: df475c10 c0948320 00000000 c03cad54 df475c10 c091d8dc c091d8dc c03cb34c
[ 42.695199] 3e60: c092b3c0 c092b3c0 c082c83c c03cb160 c091d8dc df475c10 53071d90 00000000
[ 42.703393] 3e80: df475c10 c091d8dc c03cb34c c092b3c0 c092b3c0 c03cb334 00000000 df475c10
[ 42.711587] 3ea0: c091d8dc c03cb3f8 df475c10 c0903c48 c091d8dc c03c9408 c092b3c0 df4bff58
[ 42.719781] 3ec0: df4978b4 53071d90 df4bff6c c091d8dc 00000000 dec11180 c09182c0 c03ca324
[ 42.727974] 3ee0: c071570e c071570f 00000000 c091d8dc c0903c48 c081c028 00000000 c03cbab0
[ 42.736169] 3f00: 00000006 c0903c48 c081c028 c01026e0 00000000 df443f18 00000000 c0800500
[ 42.744362] 3f20: c0788864 000000ac 00000006 00000006 00000000 c090b3e0 00000000 cccccccd
[ 42.752556] 3f40: 00000000 00000000 c092b3c0 53071d90 00000000 00000006 c082c830 53071d90
[ 42.760750] 3f60: 00000006 c082c834 000000ac c0835470 c092b3c0 c0800e38 00000006 00000006
[ 42.768943] 3f80: 00000000 c0800508 00000000 c05e9294 00000000 00000000 00000000 00000000
[ 42.777137] 3fa0: 00000000 c05e929c 00000000 c01010e8 00000000 00000000 00000000 00000000
[ 42.785330] 3fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 42.793525] 3fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[ 42.801736] [<c05ac9b4>] (dsa_unregister_switch) from [<c042cb60>] (mv88e6xxx_remove+0x1c/0x6c)
[ 42.810462] [<c042cb60>] (mv88e6xxx_remove) from [<c0425904>] (mdio_remove+0x1c/0x38)
[ 42.818317] [<c0425904>] (mdio_remove) from [<c03cb4f4>] (device_release_driver_internal+0xf0/0x194)
[ 42.827473] [<c03cb4f4>] (device_release_driver_internal) from [<c03ca238>] (bus_remove_device+0xcc/0xdc)
[ 42.837061] [<c03ca238>] (bus_remove_device) from [<c03c7158>] (device_del+0x170/0x288)
[ 42.845088] [<c03c7158>] (device_del) from [<c042584c>] (mdio_device_remove+0xc/0x18)
[ 42.852934] [<c042584c>] (mdio_device_remove) from [<c04250d4>] (mdiobus_unregister+0x50/0x84)
[ 42.861574] [<c04250d4>] (mdiobus_unregister) from [<c043b380>] (macb_probe+0x8ec/0xbac)
[ 42.869693] [<c043b380>] (macb_probe) from [<c03cc720>] (platform_drv_probe+0x48/0x98)
[ 42.877631] [<c03cc720>] (platform_drv_probe) from [<c03cad54>] (really_probe+0x140/0x2f8)
[ 42.885920] [<c03cad54>] (really_probe) from [<c03cb160>] (driver_probe_device+0x10c/0x154)
[ 42.894287] [<c03cb160>] (driver_probe_device) from [<c03cb334>] (device_driver_attach+0x44/0x5c)
[ 42.903176] [<c03cb334>] (device_driver_attach) from [<c03cb3f8>] (__driver_attach+0xac/0xb8)
[ 42.911715] [<c03cb3f8>] (__driver_attach) from [<c03c9408>] (bus_for_each_dev+0x64/0xa0)
[ 42.919909] [<c03c9408>] (bus_for_each_dev) from [<c03ca324>] (bus_add_driver+0xdc/0x1bc)
[ 42.928103] [<c03ca324>] (bus_add_driver) from [<c03cbab0>] (driver_register+0xb0/0xf8)
[ 42.936127] [<c03cbab0>] (driver_register) from [<c01026e0>] (do_one_initcall+0x74/0x164)
[ 42.944330] [<c01026e0>] (do_one_initcall) from [<c0800e38>] (kernel_init_freeable+0x108/0x1d8)
[ 42.953052] [<c0800e38>] (kernel_init_freeable) from [<c05e929c>] (kernel_init+0x8/0x110)
[ 42.961252] [<c05e929c>] (kernel_init) from [<c01010e8>] (ret_from_fork+0x14/0x2c)
[ 42.968828] Exception stack(0xdf443fb0 to 0xdf443ff8)
[ 42.973885] 3fa0: 00000000 00000000 00000000 00000000
[ 42.982080] 3fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 42.990272] 3fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[ 42.996902] Code: e92d4070 e1a05000 e59f005c eb00fe44 (e9950030)
[ 43.003032] ---[ end trace b3054371800a3ffd ]---
[ 43.007675] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b
[ 43.015351] CPU0: stopping
[ 43.018068] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G D 5.4.0-MESC #108
[ 43.025907] Hardware name: Xilinx Zynq Platform
[ 43.030460] [<c010e2a8>] (unwind_backtrace) from [<c010a2d8>] (show_stack+0x10/0x14)
[ 43.038233] [<c010a2d8>] (show_stack) from [<c05d54bc>] (dump_stack+0xb4/0xd4)
[ 43.045475] [<c05d54bc>] (dump_stack) from [<c010c878>] (ipi_cpu_stop+0x3c/0x98)
[ 43.052887] [<c010c878>] (ipi_cpu_stop) from [<c010d0d8>] (handle_IPI+0x6c/0x90)
[ 43.060298] [<c010d0d8>] (handle_IPI) from [<c031959c>] (gic_handle_irq+0x84/0x90)
[ 43.067885] [<c031959c>] (gic_handle_irq) from [<c0101a8c>] (__irq_svc+0x6c/0xa8)
[ 43.075375] Exception stack(0xc0901f18 to 0xc0901f60)
My questions:
1. Seems like the switches have passed their initialization phase OK but still the dsa is unable to finish because its missing a phy node. why is it still looking for a phy after it had identified all phys?
2. Can you please offer an example for a devicetree dealing with proper dsa config? I've seen devicetree documentation which had node 'dsa' in it but I use 'dsa,member' node. Its a bit confusing.
3. why is the kernel scans all the mdio addresses? it takes to long (about 20 seconds to scan each switch).
> Also, note that this code has changed a lot since v5.4. You might wan
to try v5.9, or v5.10-rc2.
I'm using Xilinx's kernel. Its last version is based on v5.4.
-----Original Message-----
From: Andrew Lunn <andrew@...n.ch>
Sent: Thursday, November 5, 2020 6:21 PM
To: Alayev Michael <malayev@....co.il>
Cc: mic.al.linux@...il.com; netdev@...r.kernel.org
Subject: Re: net: dsa: mv88e6xxx : linux v5.4 crash
> &gem0 {
> status = "okay";
> phy-mode = "rgmii-id";
> phy-handle = <&phy0>;
> fixed-link {
> speed = <1000>;
> full-duplex;
> };
>
> > The diagram you showed had gem0 connected directly to the switch. So
> > this phy-handle is wrong. Or the diagram is wrong.
> The diagram is correct. I have commented the phy-mode and phy-handle in 'gem0' definition and got error:
> 'macb e000b000.ethernet eth0: no PHY found'
/* based on au1000_eth. c*/
static int macb_mii_probe(struct net_device *dev)
{
struct macb *bp = netdev_priv(dev);
struct phy_device *phydev;
struct device_node *np;
int ret, i;
np = bp->pdev->dev.of_node;
ret = 0;
if (np) {
if (of_phy_is_fixed_link(np)) {
bp->phy_node = of_node_get(np);
} else {
...
if (bp->phy_node) {
phydev = of_phy_connect(dev, bp->phy_node,
&macb_handle_link_change, 0,
bp->phy_interface);
if (!phydev)
return -ENODEV;
} else {
phydev = phy_find_first(bp->mii_bus);
if (!phydev) {
netdev_err(dev, "no PHY found\n");
return -ENXIO;
}
So either of_phy_is_fixed_link(np) is returning false, or
of_node_get(np) returns NULL.
You need to do some debugging and figure out which and why.
Also, note that this code has changed a lot since v5.4. You might want
to try v5.9, or v5.10-rc2.
Andrew
Default Profile
[ 0.200787] smp: Brought up 1 node, 2 CPUs
[ 0.200818] SMP: Total of 2 processors activated (1333.33 BogoMIPS).
[ 0.200842] CPU: All CPU(s) started in SVC mode.
[ 0.201348] devtmpfs: initialized
[ 0.205447] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
[ 0.205889] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.205941] futex hash table entries: 512 (order: 3, 32768 bytes, linear)
[ 0.207074] pinctrl core: initialized pinctrl subsystem
[ 0.208109] NET: Registered protocol family 16
[ 0.212409] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.213490] cpuidle: using governor menu
[ 0.221459] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
[ 0.221499] hw-breakpoint: maximum watchpoint size is 4 bytes.
[ 0.221640] ==MICDBG: lib/devres.c devm_ioremap_resource 161 dev init name=(null) dev name=f800c000.ocmc res name=(null) res start=0xfffc0000
[ 0.221713] zynq-ocm f800c000.ocmc: ZYNQ OCM pool: 256 KiB @ 0x(ptrval)
[ 0.221754] ==MICDBG: lib/devres.c devm_ioremap_resource 161 dev init name=(null) dev name=f800c000.ocmc res name=ocmc@...0c000 res start=0xf800c000
[ 0.222377] e0000000.serial: ttyPS0 at MMIO 0xe0000000 (irq = 24, base_baud = 6249999) is a xuartps
[ 0.658312] printk: console [ttyPS0] enabled
[ 0.671689] vgaarb: loaded
[ 0.674789] SCSI subsystem initialized
[ 0.678785] usbcore: registered new interface driver usbfs
[ 0.684371] usbcore: registered new interface driver hub
[ 0.689780] usbcore: registered new device driver usb
[ 0.695094] pps_core: LinuxPPS API ver. 1 registered
[ 0.700062] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@...ux.it>
[ 0.709252] PTP clock support registered
[ 0.713226] EDAC MC: Ver: 3.0.0
[ 0.716777] FPGA manager framework
[ 0.721009] clocksource: Switched to clocksource arm_global_timer
[ 0.737084] NET: Registered protocol family 2
[ 0.742133] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes, linear)
[ 0.750538] TCP established hash table entries: 4096 (order: 2, 16384 bytes, linear)
[ 0.758380] TCP bind hash table entries: 4096 (order: 3, 32768 bytes, linear)
[ 0.765612] TCP: Hash tables configured (established 4096 bind 4096)
[ 0.772072] UDP hash table entries: 256 (order: 1, 8192 bytes, linear)
[ 0.778634] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes, linear)
[ 0.785825] NET: Registered protocol family 1
[ 0.790737] RPC: Registered named UNIX socket transport module.
[ 0.796675] RPC: Registered udp transport module.
[ 0.801409] RPC: Registered tcp transport module.
[ 0.806121] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.812586] PCI: CLS 0 bytes, default 64
[ 0.816729] Trying to unpack rootfs image as initramfs...
[ 1.690616] Freeing initrd memory: 10052K
[ 1.694849] hw perfevents: no interrupt-affinity property for /pmu@...91000, guessing.
[ 1.703047] hw perfevents: enabled with armv7_cortex_a9 PMU driver, 7 counters available
[ 1.712736] workingset: timestamp_bits=30 max_order=17 bucket_order=0
[ 1.720144] jffs2: version 2.2. (NAND) (SUMMARY) ?© 2001-2006 Red Hat, Inc.
[ 1.727465] io scheduler mq-deadline registered
[ 1.732023] io scheduler kyber registered
[ 1.736357] zynq-pinctrl 700.pinctrl: zynq pinctrl initialized
[ 1.742616] ==MICDBG: lib/devres.c devm_ioremap_resource 161 dev init name=(null) dev name=e000a000.gpio res name=gpio@...0a000 res start=0xe000a000
[ 1.757246] ==MICDBG: lib/devres.c devm_ioremap_resource 161 dev init name=(null) dev name=f8003000.dmac res name=dmac@...03000 res start=0xf8003000
[ 1.772010] dma-pl330 f8003000.dmac: Loaded driver for PL330 DMAC-241330
[ 1.778729] dma-pl330 f8003000.dmac: DBUFF-128x8bytes Num_Chans-8 Num_Peri-4 Num_Events-16
[ 1.796481] brd: module loaded
[ 1.805575] loop: module loaded
[ 1.809700] ==MICDBG: lib/devres.c devm_ioremap_resource 161 dev init name=(null) dev name=e000d000.spi res name=spi@...0d000 res start=0xe000d000
[ 1.824427] spi-nor spi0.0: s25fl256s1 (65536 Kbytes)
[ 1.829512] 1 fixed-partitions partitions found on MTD device spi0.0
[ 1.835900] Creating 1 MTD partitions on "spi0.0":
[ 1.840755] 0x000000000000-0x000004000000 : "qspi-flash"
[ 1.851056] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 381
[ 1.857932] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 395
[ 1.864769] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 400
[ 1.871601] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 403
[ 1.878400] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 416
[ 1.885213] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 419
[ 1.892023] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 1.898815] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=0
[ 1.906587] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=0
[ 1.914353] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 1.921170] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=1
[ 1.928923] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=1
[ 1.936687] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 1.943496] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=2
[ 1.951262] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=2
[ 1.959014] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 1.965821] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=3
[ 1.973586] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=3
[ 1.981352] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 1.988150] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=4
[ 1.995919] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=4
[ 2.003686] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.010493] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=5
[ 2.018249] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=5
[ 2.026020] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.032831] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=6
[ 2.040594] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=6
[ 2.048349] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.055155] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=7
[ 2.062921] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=7
[ 2.070685] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.077484] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=8
[ 2.085254] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=8
[ 2.093021] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.099817] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=9
[ 2.107627] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=9
[ 2.115403] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.122217] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=10
[ 2.130057] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=10
[ 2.137915] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.144724] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=11
[ 2.152576] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=11
[ 2.160427] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.167218] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=12
[ 2.175075] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=12
[ 2.182928] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.189725] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=13
[ 2.197582] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=13
[ 2.205436] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.212245] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=14
[ 2.220085] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=14
[ 2.227941] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.234754] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=15
[ 2.242614] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=15
[ 2.250466] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.257264] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=16
[ 2.265121] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=16
[ 2.272975] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.279771] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=17
[ 2.287628] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=17
[ 2.295482] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.302292] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=18
[ 2.310131] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=18
[ 2.317980] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.324797] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=19
[ 2.332653] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=19
[ 2.340503] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.347293] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=20
[ 2.355150] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=20
[ 2.363004] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.369800] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=21
[ 2.377657] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=21
[ 2.385511] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.392320] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=22
[ 2.400160] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=22
[ 2.408009] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.414820] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=23
[ 2.422679] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=23
[ 2.430533] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.437331] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=24
[ 2.445188] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=24
[ 2.453042] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.459838] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=25
[ 2.467695] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=25
[ 2.475549] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.482358] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=26
[ 2.490208] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=26
[ 2.498051] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.504857] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=27
[ 2.512710] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=27
[ 2.520567] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.527360] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=28
[ 2.535218] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=28
[ 2.543071] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.549867] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=29
[ 2.557724] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=29
[ 2.565578] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.572387] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=30
[ 2.580238] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=30
[ 2.588080] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.594886] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=31
[ 2.602738] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=31
[ 2.610589] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 433
[ 2.617381] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 436 bus name=Fixed MDIO Bus id=fixed-0
[ 2.627240] libphy: Fixed MDIO Bus: probed
[ 2.632114] CAN device driver interface
[ 2.636318] ==MICDBG: drivers/net/ethernet/cadence/macb_main.c macb_probe 4386 pdev name=e000b000.ethernet pdev id=-1 pdev resource name=ethernet@...0b000
[ 2.650363] ==MICDBG: drivers/net/ethernet/cadence/macb_main.c macb_probe 4387 dev init name=(null) driver_name=macb
[ 2.661112] ==MICDBG: lib/devres.c devm_ioremap_resource 161 dev init name=(null) dev name=e000b000.ethernet res name=ethernet@...0b000 res start=0xe000b000
[ 2.675414] ==MICDBG: drivers/net/ethernet/cadence/macb_main.c macb_probe 4425 after assign: dev name=eth%d, pdev init name=(null) pdev driver_name=macb
[ 2.689308] ==MICDBG: drivers/net/ethernet/cadence/macb_main.c macb_probe 4501
[ 2.697347] ==MICDBG: drivers/net/ethernet/cadence/macb_main.c macb_probe 4514
[ 2.704792] ==MICDBG: drivers/net/ethernet/cadence/macb_main.c macb_mii_init 650 MACB_mii_bus e000b000.ethernet ffffffff e000b000.ethernet-ffffffff
[ 2.718215] ==MICDBG: drivers/net/ethernet/cadence/macb_main.c macb_mii_init 655
[ 2.725812] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_register 214
[ 2.732199] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_register 229 MACB_mii_bus mdio mdio
[ 2.740578] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 381
[ 2.747455] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 395
[ 2.754266] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 400
[ 2.761104] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 403
[ 2.767900] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 416
[ 2.774711] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 419
[ 2.781523] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.788314] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.795124] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.801929] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.808721] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.815530] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.822336] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.829127] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.835945] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.842752] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.849543] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.856353] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.863158] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.869950] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.876759] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.883564] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.890367] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.897161] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.903970] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.910774] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.917568] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.924377] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.931190] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.937984] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.944794] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.951598] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.958390] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.965199] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.972005] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.978797] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.985606] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.992411] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 2.999204] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 433
[ 3.006015] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 436 bus name=MACB_mii_bus id=e000b000.ethernet-ffffffff
[ 3.017351] libphy: MACB_mii_bus: probed
[ 3.021287] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_register 246 MACB_mii_bus mdio mdio
[ 3.029654] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_register 249 MACB_mii_bus mdio mdio
[ 3.038040] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_child_is_phy 171
[ 3.044853] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_child_is_phy 174 NAME=switch
[ 3.052710] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_child_is_phy 177
[ 3.059418] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_child_is_phy 180
[ 3.066150] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_child_is_phy 188
[ 3.072868] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_child_is_phy 196
[ 3.079574] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_register 263 MACB_mii_bus mdio mdio switch switch@2
[ 3.089342] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_register_device 110
[ 3.130220] mv88e6085 e000b000.ethernet-ffffffff:02: switch 0xa10 detected: Marvell 88E6390X, revision 1
[ 4.840243] ==MICDBG: drivers/net/dsa/mv88e6xxx/chip.c mv88e6xxx_mdios_register 2973 switch switch@2
[ 4.849573] ==MICDBG: drivers/net/dsa/mv88e6xxx/chip.c mv88e6xxx_mdios_register 2980 child ptr=0x0
[ 4.858831] ==MICDBG: drivers/net/dsa/mv88e6xxx/chip.c mv88e6xxx_mdio_register 2924
[ 4.866700] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_register 214
[ 4.873074] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_register 218
[ 4.879430] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 381
[ 4.886329] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 395
[ 4.893149] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 400
[ 4.899944] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 403
[ 4.906753] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 416
[ 4.913557] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 419
[ 4.920359] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 4.927155] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=0
[ 5.310624] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=0
[ 5.318387] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 5.325199] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=1
[ 6.170659] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=1
[ 6.178421] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 6.185233] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=2
[ 7.030657] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=2
[ 7.038419] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 7.045229] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=3
[ 7.890658] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=3
[ 7.898426] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 7.905236] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=4
[ 8.750657] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=4
[ 8.758421] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 8.765233] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=5
[ 9.610660] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=5
[ 9.618428] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 9.625239] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=6
[ 10.470659] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=6
[ 10.478424] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 10.485236] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=7
[ 11.330660] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=7
[ 11.338421] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 11.345233] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=8
[ 12.190660] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=8
[ 12.198427] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 12.205238] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=9
[ 12.620620] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=9
[ 12.628377] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 12.635181] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=10
[ 13.050621] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=10
[ 13.058462] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 13.065267] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=11
[ 13.480621] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=11
[ 13.488471] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 13.495283] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=12
[ 13.910621] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=12
[ 13.918468] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 13.925272] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=13
[ 14.340621] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=13
[ 14.348466] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 14.355272] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=14
[ 14.770621] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=14
[ 14.778465] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 14.785269] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=15
[ 15.200621] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=15
[ 15.208465] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 15.215277] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=16
[ 15.630621] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=16
[ 15.638462] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 15.645267] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=17
[ 16.060620] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=17
[ 16.068460] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 16.075265] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=18
[ 16.490621] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=18
[ 16.498467] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 16.505272] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=19
[ 16.920621] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=19
[ 16.928466] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 16.935270] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=20
[ 17.350622] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=20
[ 17.358467] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 17.365278] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=21
[ 17.780621] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=21
[ 17.788463] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 17.795268] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=22
[ 18.210621] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=22
[ 18.218462] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 18.225275] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=23
[ 18.640622] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=23
[ 18.648469] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 18.655273] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=24
[ 19.070675] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=24
[ 19.078521] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 19.085335] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=25
[ 19.500622] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=25
[ 19.508466] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 19.515270] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=26
[ 19.930621] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=26
[ 19.938464] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 19.945269] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=27
[ 20.360622] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=27
[ 20.368463] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 20.375267] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=28
[ 20.790622] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=28
[ 20.798462] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 20.805266] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=29
[ 21.220623] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=29
[ 21.228470] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 21.235282] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=30
[ 21.650622] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=30
[ 21.658468] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 21.665272] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=31
[ 22.080622] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=31
[ 22.088466] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 433
[ 22.095272] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 436 bus name=mv88e6xxx SMI id=mv88e6xxx-0
[ 22.105387] libphy: mv88e6xxx SMI: probed
[ 22.109401] ==MICDBG: drivers/net/dsa/mv88e6xxx/chip.c mv88e6xxx_mdio_register 2932
[ 22.117249] ==MICDBG: drivers/net/dsa/mv88e6xxx/chip.c mv88e6xxx_mdio_register 2937
[ 22.125105] ==MICDBG: drivers/net/dsa/mv88e6xxx/chip.c mv88e6xxx_mdio_register 2941
[ 22.132952] ==MICDBG: drivers/net/dsa/mv88e6xxx/chip.c mv88e6xxx_mdios_register 2985
[ 22.140897] ==MICDBG: drivers/net/dsa/mv88e6xxx/chip.c mv88e6xxx_mdios_register 2991 ports (null)
[ 23.310393] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_register 249 MACB_mii_bus mdio mdio
[ 23.318770] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_child_is_phy 171
[ 23.325604] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_child_is_phy 174 NAME=switch
[ 23.333474] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_child_is_phy 177
[ 23.340200] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_child_is_phy 180
[ 23.346922] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_child_is_phy 188
[ 23.353646] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_child_is_phy 196
[ 23.360372] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_register 263 MACB_mii_bus mdio mdio switch switch@3
[ 23.370122] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_register_device 110
[ 23.410223] mv88e6085 e000b000.ethernet-ffffffff:03: switch 0xa10 detected: Marvell 88E6390X, revision 1
[ 25.120254] ==MICDBG: drivers/net/dsa/mv88e6xxx/chip.c mv88e6xxx_mdios_register 2973 switch switch@3
[ 25.129585] ==MICDBG: drivers/net/dsa/mv88e6xxx/chip.c mv88e6xxx_mdios_register 2980 child ptr=0x0
[ 25.138845] ==MICDBG: drivers/net/dsa/mv88e6xxx/chip.c mv88e6xxx_mdio_register 2924
[ 25.146713] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_register 214
[ 25.153174] ==MICDBG: drivers/of/of_mdio.c of_mdiobus_register 218
[ 25.159541] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 381
[ 25.166439] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 395
[ 25.173257] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 400
[ 25.180052] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 403
[ 25.186862] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 416
[ 25.193665] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 419
[ 25.200468] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 25.207263] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=0
[ 25.600218] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=0
[ 25.607971] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 25.614779] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=1
[ 26.450663] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=1
[ 26.458427] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 26.465237] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=2
[ 27.310664] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=2
[ 27.318432] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 27.325243] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=3
[ 28.170663] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=3
[ 28.178428] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 28.185239] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=4
[ 29.030662] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=4
[ 29.038425] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 29.045236] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=5
[ 29.890663] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=5
[ 29.898433] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 29.905242] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=6
[ 30.750664] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=6
[ 30.758428] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 30.765239] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=7
[ 31.610667] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=7
[ 31.618436] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 31.625245] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=8
[ 32.470664] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=8
[ 32.478432] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 32.485242] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=9
[ 32.900625] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=9
[ 32.908381] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 32.915185] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=10
[ 33.330625] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=10
[ 33.338469] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 33.345280] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=11
[ 33.760624] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=11
[ 33.768465] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 33.775270] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=12
[ 34.190624] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=12
[ 34.198472] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 34.205277] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=13
[ 34.620625] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=13
[ 34.628471] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 34.635275] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=14
[ 35.050624] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=14
[ 35.058470] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 35.065273] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=15
[ 35.480625] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=15
[ 35.488468] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 35.495282] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=16
[ 35.910625] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=16
[ 35.918466] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 35.925271] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=17
[ 36.340626] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=17
[ 36.348473] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 36.355279] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=18
[ 36.770625] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=18
[ 36.778471] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 36.785276] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=19
[ 37.200626] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=19
[ 37.208471] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 37.215284] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=20
[ 37.630643] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=20
[ 37.638486] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 37.645292] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=21
[ 38.060626] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=21
[ 38.068467] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 38.075272] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=22
[ 38.490625] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=22
[ 38.498466] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 38.505271] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=23
[ 38.920625] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=23
[ 38.928472] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 38.935278] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=24
[ 39.350626] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=24
[ 39.358472] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 39.365285] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=25
[ 39.780626] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=25
[ 39.788470] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 39.795275] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=26
[ 40.210626] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=26
[ 40.218468] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 40.225273] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=27
[ 40.640626] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=27
[ 40.648467] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 40.655271] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=28
[ 41.070680] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=28
[ 41.078527] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 41.085342] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=29
[ 41.500627] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=29
[ 41.508473] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 41.515277] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=30
[ 41.930627] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=30
[ 41.938472] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 421
[ 41.945276] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 424 phy_addr=31
[ 42.360627] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 426 phy_addr=31
[ 42.368470] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 433
[ 42.375276] ==MICDBG: drivers/net/phy/mdio_bus.c __mdiobus_register 436 bus name=mv88e6xxx SMI id=mv88e6xxx-1
[ 42.385391] libphy: mv88e6xxx SMI: probed
[ 42.389405] ==MICDBG: drivers/net/dsa/mv88e6xxx/chip.c mv88e6xxx_mdio_register 2932
[ 42.397253] ==MICDBG: drivers/net/dsa/mv88e6xxx/chip.c mv88e6xxx_mdio_register 2937
[ 42.405100] ==MICDBG: drivers/net/dsa/mv88e6xxx/chip.c mv88e6xxx_mdio_register 2941
[ 42.412947] ==MICDBG: drivers/net/dsa/mv88e6xxx/chip.c mv88e6xxx_mdios_register 2985
[ 42.420894] ==MICDBG: drivers/net/dsa/mv88e6xxx/chip.c mv88e6xxx_mdios_register 2991 ports (null)
[ 42.430255] MLM miiMarv Device Created!
[ 42.430317] ==MICDBG: drivers/net/ethernet/cadence/macb_main.c macb_mii_init 685
[ 42.441784] ==MICDBG: drivers/net/ethernet/cadence/macb_main.c macb_mii_probe 516
[ 42.449453] ==MICDBG: drivers/of/of_mdio.c of_phy_is_fixed_link 468
[ 42.455912] ==MICDBG: drivers/net/ethernet/cadence/macb_main.c macb_mii_probe 520
[ 42.463589] ==MICDBG: drivers/net/ethernet/cadence/macb_main.c macb_mii_probe 551 phy_node_name=ethernet@...0b000
[ 42.474049] ==MICDBG: drivers/of/of_mdio.c of_phy_find_device 323
[ 42.480321] ==MICDBG: drivers/of/of_mdio.c of_phy_find_device 326
[ 42.486608] ==MICDBG: drivers/of/of_mdio.c of_phy_find_device 328
[ 42.492893] ==MICDBG: drivers/of/of_mdio.c of_phy_find_device 338
[ 42.499166] ==MICDBG: drivers/of/of_mdio.c of_phy_connect 363
[ 42.505096] ==MICDBG: drivers/net/ethernet/cadence/macb_main.c macb_mii_init 695
[ 42.512859] 8<--- cut here ---
[ 42.515917] Unable to handle kernel NULL pointer dereference at virtual address 00000004
[ 42.524029] pgd = (ptrval)
[ 42.526736] [00000004] *pgd=00000000
[ 42.530316] Internal error: Oops - BUG: 17 [#1] PREEMPT SMP ARM
[ 42.536235] Modules linked in:
[ 42.539292] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.4.0-MESC #108
[ 42.545732] Hardware name: Xilinx Zynq Platform
[ 42.550272] PC is at dsa_unregister_switch+0x10/0x74
[ 42.555249] LR is at atomic_cmpxchg_relaxed+0xc/0x28
[ 42.560220] pc : [<c05ac9b4>] lr : [<c014d814>] psr: 600b0013
[ 42.566488] sp : df443d38 ip : 00000000 fp : c06441b4
[ 42.571711] r10: ffffffed r9 : dfbe9cb0 r8 : df475c10
[ 42.576937] r7 : 00000000 r6 : 00000000 r5 : 00000000 r4 : df430040
[ 42.583467] r3 : 53071d90 r2 : 53071d90 r1 : 00000000 r0 : 00000001
[ 42.590004] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
[ 42.597149] Control: 18c5387d Table: 1ec9004a DAC: 00000051
[ 42.602900] Process swapper/0 (pid: 1, stack limit = 0x(ptrval))
[ 42.608907] Stack: (0xdf443d38 to 0xdf444000)
[ 42.613264] 3d20: df430040 c091d718
[ 42.621455] 3d40: 00000000 c042cb60 dec77800 c0425904 dec77800 c03cb4f4 dec77800 df480230
[ 42.629648] 3d60: c091b230 dec0f078 df475c10 c03ca238 dec77800 dec77844 c0903c48 c03c7158
[ 42.637842] 3d80: dec0f2c4 c04250e0 a00b0013 dec0f250 dec0f2c4 53071d90 dec77800 dec77800
[ 42.646036] 3da0: dec0f254 dec0f2c4 df475c10 c042584c dec0f000 c04250d4 df5cc000 df5c8000
[ 42.654230] 3dc0: c0948a88 df5c8500 df475c10 c043b380 c07155e9 df470600 ffffffff dec0f008
[ 42.662423] 3de0: 00000000 dfbe9900 dfbe9900 00000001 c0437cc0 00000002 dec09140 dec09100
[ 42.670617] 3e00: dec090c0 00000000 00000000 c0703832 dec13268 53071d90 00000000 00000000
[ 42.678811] 3e20: df475c10 c091d8dc 00000000 c091d8dc 00000000 fffffdfb 00000000 c03cc720
[ 42.687005] 3e40: df475c10 c0948320 00000000 c03cad54 df475c10 c091d8dc c091d8dc c03cb34c
[ 42.695199] 3e60: c092b3c0 c092b3c0 c082c83c c03cb160 c091d8dc df475c10 53071d90 00000000
[ 42.703393] 3e80: df475c10 c091d8dc c03cb34c c092b3c0 c092b3c0 c03cb334 00000000 df475c10
[ 42.711587] 3ea0: c091d8dc c03cb3f8 df475c10 c0903c48 c091d8dc c03c9408 c092b3c0 df4bff58
[ 42.719781] 3ec0: df4978b4 53071d90 df4bff6c c091d8dc 00000000 dec11180 c09182c0 c03ca324
[ 42.727974] 3ee0: c071570e c071570f 00000000 c091d8dc c0903c48 c081c028 00000000 c03cbab0
[ 42.736169] 3f00: 00000006 c0903c48 c081c028 c01026e0 00000000 df443f18 00000000 c0800500
[ 42.744362] 3f20: c0788864 000000ac 00000006 00000006 00000000 c090b3e0 00000000 cccccccd
[ 42.752556] 3f40: 00000000 00000000 c092b3c0 53071d90 00000000 00000006 c082c830 53071d90
[ 42.760750] 3f60: 00000006 c082c834 000000ac c0835470 c092b3c0 c0800e38 00000006 00000006
[ 42.768943] 3f80: 00000000 c0800508 00000000 c05e9294 00000000 00000000 00000000 00000000
[ 42.777137] 3fa0: 00000000 c05e929c 00000000 c01010e8 00000000 00000000 00000000 00000000
[ 42.785330] 3fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 42.793525] 3fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[ 42.801736] [<c05ac9b4>] (dsa_unregister_switch) from [<c042cb60>] (mv88e6xxx_remove+0x1c/0x6c)
[ 42.810462] [<c042cb60>] (mv88e6xxx_remove) from [<c0425904>] (mdio_remove+0x1c/0x38)
[ 42.818317] [<c0425904>] (mdio_remove) from [<c03cb4f4>] (device_release_driver_internal+0xf0/0x194)
[ 42.827473] [<c03cb4f4>] (device_release_driver_internal) from [<c03ca238>] (bus_remove_device+0xcc/0xdc)
[ 42.837061] [<c03ca238>] (bus_remove_device) from [<c03c7158>] (device_del+0x170/0x288)
[ 42.845088] [<c03c7158>] (device_del) from [<c042584c>] (mdio_device_remove+0xc/0x18)
[ 42.852934] [<c042584c>] (mdio_device_remove) from [<c04250d4>] (mdiobus_unregister+0x50/0x84)
[ 42.861574] [<c04250d4>] (mdiobus_unregister) from [<c043b380>] (macb_probe+0x8ec/0xbac)
[ 42.869693] [<c043b380>] (macb_probe) from [<c03cc720>] (platform_drv_probe+0x48/0x98)
[ 42.877631] [<c03cc720>] (platform_drv_probe) from [<c03cad54>] (really_probe+0x140/0x2f8)
[ 42.885920] [<c03cad54>] (really_probe) from [<c03cb160>] (driver_probe_device+0x10c/0x154)
[ 42.894287] [<c03cb160>] (driver_probe_device) from [<c03cb334>] (device_driver_attach+0x44/0x5c)
[ 42.903176] [<c03cb334>] (device_driver_attach) from [<c03cb3f8>] (__driver_attach+0xac/0xb8)
[ 42.911715] [<c03cb3f8>] (__driver_attach) from [<c03c9408>] (bus_for_each_dev+0x64/0xa0)
[ 42.919909] [<c03c9408>] (bus_for_each_dev) from [<c03ca324>] (bus_add_driver+0xdc/0x1bc)
[ 42.928103] [<c03ca324>] (bus_add_driver) from [<c03cbab0>] (driver_register+0xb0/0xf8)
[ 42.936127] [<c03cbab0>] (driver_register) from [<c01026e0>] (do_one_initcall+0x74/0x164)
[ 42.944330] [<c01026e0>] (do_one_initcall) from [<c0800e38>] (kernel_init_freeable+0x108/0x1d8)
[ 42.953052] [<c0800e38>] (kernel_init_freeable) from [<c05e929c>] (kernel_init+0x8/0x110)
[ 42.961252] [<c05e929c>] (kernel_init) from [<c01010e8>] (ret_from_fork+0x14/0x2c)
[ 42.968828] Exception stack(0xdf443fb0 to 0xdf443ff8)
[ 42.973885] 3fa0: 00000000 00000000 00000000 00000000
[ 42.982080] 3fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 42.990272] 3fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[ 42.996902] Code: e92d4070 e1a05000 e59f005c eb00fe44 (e9950030)
[ 43.003032] ---[ end trace b3054371800a3ffd ]---
[ 43.007675] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b
[ 43.015351] CPU0: stopping
[ 43.018068] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G D 5.4.0-MESC #108
[ 43.025907] Hardware name: Xilinx Zynq Platform
[ 43.030460] [<c010e2a8>] (unwind_backtrace) from [<c010a2d8>] (show_stack+0x10/0x14)
[ 43.038233] [<c010a2d8>] (show_stack) from [<c05d54bc>] (dump_stack+0xb4/0xd4)
[ 43.045475] [<c05d54bc>] (dump_stack) from [<c010c878>] (ipi_cpu_stop+0x3c/0x98)
[ 43.052887] [<c010c878>] (ipi_cpu_stop) from [<c010d0d8>] (handle_IPI+0x6c/0x90)
[ 43.060298] [<c010d0d8>] (handle_IPI) from [<c031959c>] (gic_handle_irq+0x84/0x90)
[ 43.067885] [<c031959c>] (gic_handle_irq) from [<c0101a8c>] (__irq_svc+0x6c/0xa8)
[ 43.075375] Exception stack(0xc0901f18 to 0xc0901f60)
My questions:
1. Seems like the switches have passed their initialization phase OK but still the dsa is unable to finish because its missing a phy node. why is it still looking for a phy after it had identified all phys?
2. Can you please offer an example for a devicetree dealing with proper dsa config? I've seen devicetree documentation which had node 'dsa' in it but I use 'dsa,member' node. Its a bit confusing.
3. why is the kernel scans all the mdio addresses? it takes to long (about 20 seconds to scan each switch).
Thanks
Michael Alayev
-----Original Message-----
From: Andrew Lunn <andrew@...n.ch>
Sent: Thursday, November 5, 2020 6:21 PM
To: Alayev Michael <malayev@....co.il>
Cc: mic.al.linux@...il.com; netdev@...r.kernel.org
Subject: Re: net: dsa: mv88e6xxx : linux v5.4 crash
> &gem0 {
> status = "okay";
> phy-mode = "rgmii-id";
> phy-handle = <&phy0>;
> fixed-link {
> speed = <1000>;
> full-duplex;
> };
>
> > The diagram you showed had gem0 connected directly to the switch. So
> > this phy-handle is wrong. Or the diagram is wrong.
> The diagram is correct. I have commented the phy-mode and phy-handle in 'gem0' definition and got error:
> 'macb e000b000.ethernet eth0: no PHY found'
/* based on au1000_eth. c*/
static int macb_mii_probe(struct net_device *dev)
{
struct macb *bp = netdev_priv(dev);
struct phy_device *phydev;
struct device_node *np;
int ret, i;
np = bp->pdev->dev.of_node;
ret = 0;
if (np) {
if (of_phy_is_fixed_link(np)) {
bp->phy_node = of_node_get(np);
} else {
...
if (bp->phy_node) {
phydev = of_phy_connect(dev, bp->phy_node,
&macb_handle_link_change, 0,
bp->phy_interface);
if (!phydev)
return -ENODEV;
} else {
phydev = phy_find_first(bp->mii_bus);
if (!phydev) {
netdev_err(dev, "no PHY found\n");
return -ENXIO;
}
So either of_phy_is_fixed_link(np) is returning false, or
of_node_get(np) returns NULL.
You need to do some debugging and figure out which and why.
Also, note that this code has changed a lot since v5.4. You might want
to try v5.9, or v5.10-rc2.
Andrew
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