Re: staging: mt7621-pci: factor out 'mt7621_pcie_enable_port' function

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Hi Sergio,

On 4/6/19 3:06 pm, Sergio Paracuellos wrote:
On Tue, Jun 4, 2019 at 3:31 AM Greg Ungerer <gerg@xxxxxxxxxx> wrote:
On 4/6/19 5:59 am, Sergio Paracuellos wrote:
On Mon, Jun 3, 2019 at 2:32 PM Greg Ungerer <gerg@xxxxxxxxxx> wrote:
On 3/6/19 3:34 pm, Sergio Paracuellos wrote:
On Mon, Jun 3, 2019 at 3:26 AM Greg Ungerer <gerg@xxxxxxxxxx> wrote:
On 31/5/19 10:37 pm, Sergio Paracuellos wrote:
On Thu, May 30, 2019 at 3:46 AM Greg Ungerer <gerg@xxxxxxxxxx> wrote:
On 30/5/19 10:44 am, Greg Ungerer wrote:
On 29/5/19 6:08 pm, Sergio Paracuellos wrote:
[snip]
Can you try to read and set BIT(10) instead of write it directly?:

Instead of:

rt_sysc_w32(PERST_MODE_GPIO, MT7621_GPIO_MODE);

Oh, yeah, that is definitely not going to work. There is a bunch of
other GPIO control bits in there for other hardware blocks. Would
explain the broken NAND flash behavior...

Yes, my bad here. Sometimes is better to go to sleep :)).

Do:

u32 val = rt_sysc_r32(MT7621_GPIO_MODE);
val |= PERST_MODE_GPIO;
rt_sysc_w32(val, MT7621_GPIO_MODE);

Much better result with that. Though ultimately it should clear
bits 10 and 11 (both are PERST_MODE bits) and then OR in BIT(10).

Ok, so the following should do the trick:

rt_sysc_m32(PERST_MODE_MASK, PERST_MODE_GPIO, MT7621_GPIO_MODE);

with PERST_MODE_MASK defined as:

#define PERST_MODE_MASK         GENMASK(11, 10)

(patch attached with this changes)

I have mostly good news and a little bad news :-)

I should have tested more thoroughly last night. Anyway, the new patch
works, even the IRQ of the PCI device. My Wifi PCI device works just
as well now as it did with the 4.20 pci-mt7621.c/pci-mt7621-phy.c.
I still get the lines:

pcieport 0000:00:00.0: of_irq_parse_pci: failed with rc=-22
pcieport 0000:00:00.0: enabling device (0004 -> 0006)

However that is referring to the root host PCI device (0000:00:00.0),
not my PCI peripheral device (which is 0000:01:00.0). It is actually
probed and working properly.

That is the good news.

That makes sense :). Good news are always good news even bads are
coming also :))



It would be also good to know what happen if you comment the following lines:

pcie_write(pcie, 0xffffffff, RALINK_PCI_MEMBASE);
pcie_write(pcie, RALINK_PCI_IO_MAP_BASE, RALINK_PCI_IOBASE);

Are they really needed?

Had no effect for me. Everything worked the same with or without
those lines as far as I could tell.

Ok, I won't include them when I send a clean patch series with all of
this changes.



[snip]
Only one step more to get this properly working.

Ok, now the bad news.

I often get the boot hanging at various points in the PCI
initialization, setup and probing.

For example sometimes it hangs with boot up to:

    mt7621-pci-phy 1e149000.pcie-phy: Xtal is 40MHz


Then sometimes it hangs at:

    mt7621-pci-phy 1e149000.pcie-phy: Xtal is 40MHz
    mt7621-pci 1e140000.pcie: Port 454043648 N_FTS = 0
    mt7621-pci-phy 1e149000.pcie-phy: Xtal is 40MHz
    mt7621-pci 1e140000.pcie: Port 454043648 N_FTS = 1
    mt7621-pci-phy 1e14a000.pcie-phy: Xtal is 40MHz
    mt7621-pci 1e140000.pcie: Port 454043648 N_FTS = 2
    mt7621-pci 1e140000.pcie: pcie0 no card, disable it (RST & CLK)
    mt7621-pci 1e140000.pcie: pcie1 no card, disable it (RST & CLK)
    mt7621-pci 1e140000.pcie: pcie2 no card, disable it (RST & CLK)


It is weird, here it is not initializing any port... All of them are disabled.


And then I also see it hang up to:

    mt7621-pci-phy 1e149000.pcie-phy: Xtal is 40MHz
    mt7621-pci 1e140000.pcie: Port 454043648 N_FTS = 0
    mt7621-pci-phy 1e149000.pcie-phy: Xtal is 40MHz
    mt7621-pci 1e140000.pcie: Port 454043648 N_FTS = 1
    mt7621-pci-phy 1e14a000.pcie-phy: Xtal is 40MHz
    mt7621-pci 1e140000.pcie: Port 454043648 N_FTS = 2
    mt7621-pci 1e140000.pcie: pcie1 no card, disable it (RST & CLK)
    mt7621-pci 1e140000.pcie: pcie2 no card, disable it (RST & CLK)
    mt7621-pci 1e140000.pcie: PCIE0 enabled
    mt7621-pci 1e140000.pcie: PCI coherence region base: 0x60000000, mask/settings: 0xf0000002
    mt7621-pci 1e140000.pcie: PCI host bridge to bus 0000:00
    pci_bus 0000:00: root bus resource [io  0xffffffff]
    pci_bus 0000:00: root bus resource [mem 0x60000000-0x6fffffff]
    pci_bus 0000:00: root bus resource [bus 00-ff]
    pci 0000:00:00.0: bridge configuration invalid ([bus 00-00]), reconfiguring


It happens on cold or warm boots. Sometimes it boots up all the
way and everything works perfectly.

Can you try to change all the msleeps of the code driver in favour of
mdelay's? Looks like
some timing problem.

Changed the msleeps to mdelays and it still hangs somtimes.
I doubled the delay times in the msleeps and tried that too -
that also sometimes hangs.


If it doesn't work, it would be great to have a full trace of working
4.20 and no working current 5.x series
version just to carefully compare them.

I'll attach at the end a full working boot trace from 5.1 with the 4.20 pci-mt7621.c.
I'll attach a 5.1 boot trace with your patch and hang below. Not that this very
same image doesn't always hang. Same binary will sometimes boot fine.


I had perfect reliable boot and operation with linux-5.1 using the
older 4.20 pci-mt7621.c and pci-mt7621-phy.c.

AFAICT, there is not pci-mt7621-phy.c in the v4.20, isn't it? Do you
mean you put also that
code into that version and compile them? Or are you just using "pci-mt7621.c"?

I just leave that pci-mt7621-phy.c code in place in linux-5.1 when I copy in
the linux-4.20 pci-mt7621.c - even though it isn't used in that case.

One thing I always notice is that the PCI probing happens much earlier
with the 4.20 pci-mt7621.c. Not sure that will have any impact though.

Regards
Greg


---------------linux-5.1-with-4.20-pci-mt7621.c-----------------------------------
Linux version 5.1.0-ac0 (gerg@goober) (gcc version 5.4.0 (GCC)) #73 SMP Tue Jun 4 17:06:36 AEST 2019
SoC Type: MediaTek MT7621 ver:1 eco:3
printk: bootconsole [early0] enabled
CPU0 revision is: 0001992f (MIPS 1004Kc)
OF: fdt: No chosen node found, continuing without
MIPS: machine is Digi EX15
Determined physical RAM map:
 memory: 10000000 @ 00000000 (usable)
Initial ramdisk at: 0x81000000 (16920576 bytes)
VPE topology {2,2} total 4
Primary instruction cache 32kB, VIPT, 4-way, linesize 32 bytes.
Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 bytes
MIPS secondary cache 256kB, 8-way, linesize 32 bytes.
Zone ranges:
  Normal   [mem 0x0000000000000000-0x000000000fffffff]
Movable zone start for each node
Early memory node ranges
  node   0: [mem 0x0000000000000000-0x000000000fffffff]
Initmem setup node 0 [mem 0x0000000000000000-0x000000000fffffff]
random: get_random_bytes called from start_kernel+0xb0/0x524 with crng_init=0
percpu: Embedded 15 pages/cpu s30144 r8192 d23104 u61440
Built 1 zonelists, mobility grouping on.  Total pages: 65024
Kernel command line:  boot=network boot_ver=19.3.223.0-0c02c07312-dirty console=ttyS0,115200 ubi.mtd=3 root=/dev/ram0 rd_start=0x81000000 rd_size=0x1023000
Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
Writing ErrCtl register=0002051f
Readback ErrCtl register=0002051f
Memory: 233756K/262144K available (7220K kernel code, 251K rwdata, 1320K rodata, 284K init, 230K bss, 28388K reserved, 0K cma-reserved)
SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
rcu: Hierarchical RCU implementation.
rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
NR_IRQS: 256
clocksource: GIC: mask: 0xffffffffffffffff max_cycles: 0xcaf478abb4, max_idle_ns: 440795247997 ns
sched_clock: 32 bits at 100 Hz, resolution 10000000ns, wraps every 21474836475000000ns
Calibrating delay loop... 586.13 BogoMIPS (lpj=2930688)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
rcu: Hierarchical SRCU implementation.
smp: Bringing up secondary CPUs ...
Primary instruction cache 32kB, VIPT, 4-way, linesize 32 bytes.
Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 bytes
MIPS secondary cache 256kB, 8-way, linesize 32 bytes.
CPU1 revision is: 0001992f (MIPS 1004Kc)
Synchronize counters for CPU 1: done.
Primary instruction cache 32kB, VIPT, 4-way, linesize 32 bytes.
Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 bytes
MIPS secondary cache 256kB, 8-way, linesize 32 bytes.
CPU2 revision is: 0001992f (MIPS 1004Kc)
Synchronize counters for CPU 2: done.
Primary instruction cache 32kB, VIPT, 4-way, linesize 32 bytes.
Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 bytes
MIPS secondary cache 256kB, 8-way, linesize 32 bytes.
CPU3 revision is: 0001992f (MIPS 1004Kc)
Synchronize counters for CPU 3: done.
smp: Brought up 1 node, 4 CPUs
devtmpfs: initialized
clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
futex hash table entries: 1024 (order: 3, 32768 bytes)
pinctrl core: initialized pinctrl subsystem
NET: Registered protocol family 16
***** Xtal 40MHz *****
Port 0 N_FTS = 1b102800
Port 1 N_FTS = 1b102800
Port 2 N_FTS = 1b102800
PCIE1 no card, disable it(RST&CLK)
PCIE2 no card, disable it(RST&CLK)
PCIE0 enabled
PCI coherence region base: 0x60000000, mask/settings: 0xf0000002
mt7621-pci 1e140000.pcie: PCI host bridge to bus 0000:00
pci_bus 0000:00: root bus resource [io  0xffffffff]
pci_bus 0000:00: root bus resource [mem 0x60000000-0x6fffffff]
pci_bus 0000:00: root bus resource [bus 00-ff]
pci 0000:00:00.0: bridge configuration invalid ([bus 00-00]), reconfiguring
pci 0000:00:00.0: PCI bridge to [bus 01-ff]
pci 0000:00:00.0: BAR 0: no space for [mem size 0x80000000]
pci 0000:00:00.0: BAR 0: failed to assign [mem size 0x80000000]
pci 0000:00:00.0: BAR 8: assigned [mem 0x60000000-0x601fffff]
pci 0000:00:00.0: BAR 9: assigned [mem 0x60200000-0x602fffff pref]
pci 0000:00:00.0: BAR 1: assigned [mem 0x60300000-0x6030ffff]
pci 0000:00:00.0: BAR 7: no space for [io  size 0x1000]
pci 0000:00:00.0: BAR 7: failed to assign [io  size 0x1000]
pci 0000:01:00.0: BAR 0: assigned [mem 0x60000000-0x601fffff 64bit]
pci 0000:01:00.0: BAR 6: assigned [mem 0x60200000-0x6020ffff pref]
pci 0000:00:00.0: PCI bridge to [bus 01]
pci 0000:00:00.0:   bridge window [mem 0x60000000-0x601fffff]
pci 0000:00:00.0:   bridge window [mem 0x60200000-0x602fffff pref]
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
pcf857x 0-0026: probed
i2c-mt7621 1e000900.i2c: clock 400KHz, re-start not support
clocksource: Switched to clocksource GIC
NET: Registered protocol family 2
tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes)
TCP established hash table entries: 2048 (order: 1, 8192 bytes)
TCP bind hash table entries: 2048 (order: 2, 16384 bytes)
TCP: Hash tables configured (established 2048 bind 2048)
UDP hash table entries: 256 (order: 1, 8192 bytes)
UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
NET: Registered protocol family 1
Trying to unpack rootfs image as initramfs...
rootfs image is not initramfs (invalid magic at start of compressed archive); looks like an initrd
Freeing initrd memory: 16524K
Initialise system trusted keyrings
workingset: timestamp_bits=30 max_order=16 bucket_order=0
squashfs: version 4.0 (2009/01/31) Phillip Lougher
random: fast init done
Key type asymmetric registered
Asymmetric key parser 'x509' registered
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)
mt7621_gpio 1e000600.gpio: registering 32 gpios
mt7621_gpio 1e000600.gpio: registering 32 gpios
mt7621_gpio 1e000600.gpio: registering 32 gpios
pcieport 0000:00:00.0: of_irq_parse_pci: failed with rc=-22
pcieport 0000:00:00.0: enabling device (0004 -> 0006)
Serial: 8250/16550 driver, 3 ports, IRQ sharing disabled
printk: console [ttyS0] disabled
1e000c00.uartlite: ttyS0 at MMIO 0x1e000c00 (irq = 18, base_baud = 3125000) is a 16550A
printk: console [ttyS0] enabled
printk: console [ttyS0] enabled
printk: bootconsole [early0] disabled
printk: bootconsole [early0] disabled
1e000d00.uartlite: ttyS1 at MMIO 0x1e000d00 (irq = 19, base_baud = 3125000) is a 16550A
ledman: Copyright (C) SnapGear, 2000-2010.
ledman: registered ERASE switch on IRQ28
snapdog: HW/SW watchdog timer for SnapGear/Others
cacheinfo: Failed to find cpu0 device node
cacheinfo: Unable to detect cache hierarchy for CPU 0
brd: module loaded
mt7621-nand: NAND register bank at 0xbe003000
mt7621-nand: NAND ECC register bank at 0xbe003800
nand: device found, Manufacturer ID: 0x2c, Chip ID: 0xdc
nand: Micron NAND 512MiB 3,3V 8-bit
nand: 512 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 64
nand: ecc bit: 4, spare_per_sector: 16
Bad block table found at page 262080, version 0x01
Bad block table found at page 262016, version 0x01
5 fixed-partitions partitions found on MTD device MT7621-NAND
Creating 5 MTD partitions on "MT7621-NAND":
0x000000000000-0x000000200000 : "u-boot"
0x000000200000-0x000000300000 : "u-boot-env"
0x000000300000-0x000000500000 : "log"
0x000000500000-0x000020000000 : "flash"
0x000000000000-0x000020000000 : "all"
libphy: Fixed MDIO Bus: probed
tun: Universal TUN/TAP device driver, 1.6
libphy: mdio: probed
mtk_soc_eth 1e100000.ethernet: generated random MAC address ca:3b:7c:59:df:b1
mtk_soc_eth 1e100000.ethernet: connected mac 0 to PHY at fixed-0:00 [uid=00000000, driver=Generic PHY]
mtk_soc_eth 1e100000.ethernet eth0: mediatek frame engine at 0xbe100000, irq 21
PPP generic driver version 2.4.2
PPP BSD Compression module registered
PPP Deflate Compression module registered
PPP MPPE Compression module registered
NET: Registered protocol family 24
SLIP: version 0.8.4-NET3.019-NEWTTY (dynamic channels, max=256).
CSLIP: code copyright 1989 Regents of the University of California.
usbcore: registered new interface driver ar5523
usbcore: registered new interface driver asix
usbcore: registered new interface driver ax88179_178a
usbcore: registered new interface driver cdc_ether
usbcore: registered new interface driver cdc_eem
usbcore: registered new interface driver rndis_host
usbcore: registered new interface driver cdc_subset
usbcore: registered new interface driver cdc_ncm
usbcore: registered new interface driver qmi_wwan
usbcore: registered new interface driver cdc_mbim
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ehci-pci: EHCI PCI platform driver
ehci-platform: EHCI generic platform driver
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
ohci-pci: OHCI PCI platform driver
xhci-mtk 1e1c0000.xhci: xHCI Host Controller
xhci-mtk 1e1c0000.xhci: new USB bus registered, assigned bus number 1
xhci-mtk 1e1c0000.xhci: hcc params 0x01401198 hci version 0x96 quirks 0x0000000000210010
xhci-mtk 1e1c0000.xhci: irq 20, io mem 0x1e1c0000
usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.01
usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb1: Product: xHCI Host Controller
usb usb1: Manufacturer: Linux 5.1.0-ac0 xhci-hcd
usb usb1: SerialNumber: 1e1c0000.xhci
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
xhci-mtk 1e1c0000.xhci: xHCI Host Controller
xhci-mtk 1e1c0000.xhci: new USB bus registered, assigned bus number 2
xhci-mtk 1e1c0000.xhci: Host supports USB 3.0  SuperSpeed
usb usb2: We don't know the algorithms for LPM for this host, disabling LPM.
usb usb2: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.01
usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb2: Product: xHCI Host Controller
usb usb2: Manufacturer: Linux 5.1.0-ac0 xhci-hcd
usb usb2: SerialNumber: 1e1c0000.xhci
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 1 port detected
usbcore: registered new interface driver cdc_acm
cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
usbcore: registered new interface driver cdc_wdm
usbcore: registered new interface driver usb-storage
usbcore: registered new interface driver usbserial_generic
usbserial: USB Serial support registered for generic
usbcore: registered new interface driver ipw
usbserial: USB Serial support registered for IPWireless converter
usbcore: registered new interface driver option
usbserial: USB Serial support registered for GSM modem (1-port)
usbcore: registered new interface driver qcaux
usbserial: USB Serial support registered for qcaux
usbcore: registered new interface driver qcserial
usbserial: USB Serial support registered for Qualcomm USB modem
usbcore: registered new interface driver quatech2
usbserial: USB Serial support registered for Quatech 2nd gen USB to Serial Driver
usbcore: registered new interface driver usb_serial_simple
usbserial: USB Serial support registered for carelink
usbserial: USB Serial support registered for zio
usbserial: USB Serial support registered for funsoft
usbserial: USB Serial support registered for flashloader
usbserial: USB Serial support registered for google
usbserial: USB Serial support registered for libtransistor
usbserial: USB Serial support registered for vivopay
usbserial: USB Serial support registered for moto_modem
usbserial: USB Serial support registered for motorola_tetra
usbserial: USB Serial support registered for novatel_gps
usbserial: USB Serial support registered for hp4x
usbserial: USB Serial support registered for suunto
usbserial: USB Serial support registered for siemens_mpi
u32 classifier
    input device check on
ipip: IPv4 and MPLS over IPv4 tunneling driver
gre: GRE over IPv4 demultiplexor driver
ip_gre: GRE over IPv4 tunneling driver
Initializing XFRM netlink socket
NET: Registered protocol family 10
Segment Routing with IPv6
sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
NET: Registered protocol family 17
NET: Registered protocol family 15
8021q: 802.1Q VLAN Support v1.8
Loading compiled-in X.509 certificates
libphy: dsa slave smi: probed
mt7530 mdio-bus:00 lan (uninitialized): PHY [dsa-0.0:00] driver [Generic PHY]
mt7530 mdio-bus:00 wan (uninitialized): PHY [dsa-0.0:01] driver [Generic PHY]
DSA: tree 0 setup
ubi0: attaching mtd3
ubi0: scanning is finished
ubi0: attached mtd3 (name "flash", size 507 MiB)
ubi0: PEB size: 131072 bytes (128 KiB), LEB size: 126976 bytes
ubi0: min./max. I/O unit sizes: 2048/2048, sub-page size 2048
ubi0: VID header offset: 2048 (aligned 2048), data offset: 4096
ubi0: good PEBs: 4052, bad PEBs: 4, corrupted PEBs: 0
ubi0: user volume: 4, internal volumes: 1, max. volumes count: 128
ubi0: max/mean erase counter: 7/4, WL threshold: 4096, image sequence number: 1236486005
ubi0: available PEBs: 0, total reserved PEBs: 4052, PEBs reserved for bad PEB handling: 76
ubi0: background thread "ubi_bgt0d" started, PID 115
hctosys: unable to open rtc device (rtc0)
cfg80211: Loading compiled-in X.509 certificates for regulatory database
cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
platform regulatory.0: Direct firmware load for regulatory.db failed with error -2
cfg80211: failed to load regulatory.db
RAMDISK: squashfs filesystem found at block 0
RAMDISK: Loading 16521KiB [1 disk] into ram disk... /
/
done.
VFS: Mounted root (squashfs filesystem) readonly on device 1:0.
devtmpfs: mounted
Freeing unused kernel memory: 284K
This architecture does not have kernel memory protection.
Run /sbin/init as init process
Run /etc/init as init process
Run /bin/init as init process
Mounting filesystems...
Starting watchdog...
snapdog: user servicing enabled (short=60,long=300).
Initializing network interfaces...
Set eth0 to MAC address 00:27:04:03:02:01
Set lan to MAC address 00:27:04:39:05:a7
Set wan to MAC address 00:27:04:39:05:a8
Initializing CELL interface control...
Initializing WiFi interface control...
Mounting config filesystem...
UBIFS (ubi0:2): Mounting in unauthenticated mode
UBIFS (ubi0:2): background thread "ubifs_bgt0_2" started, PID 197
UBIFS (ubi0:2): recovery needed
UBIFS (ubi0:2): recovery completed
UBIFS (ubi0:2): UBIFS: mounted UBI device 0, volume 2, name "config"
UBIFS (ubi0:2): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes
UBIFS (ubi0:2): FS size: 15618048 bytes (14 MiB, 123 LEBs), journal size 1015809 bytes (0 MiB, 6 LEBs)
UBIFS (ubi0:2): reserved for root: 737678 bytes (720 KiB)
UBIFS (ubi0:2): media format: w5/r0 (latest is w5/r0), UUID AFD2AF01-271A-41C0-8D8E-E615C64EA6ED, small LPT model
Mounting opt filesystem....
UBIFS (ubi0:3): Mounting in unauthenticated mode
UBIFS (ubi0:3): background thread "ubifs_bgt0_3" started, PID 203
UBIFS (ubi0:3): recovery needed
UBIFS (ubi0:3): recovery completed
UBIFS (ubi0:3): UBIFS: mounted UBI device 0, volume 3, name "opt"
UBIFS (ubi0:3): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes
UBIFS (ubi0:3): FS size: 418258944 bytes (398 MiB, 3294 LEBs), journal size 20951040 bytes (19 MiB, 165 LEBs)
UBIFS (ubi0:3): reserved for root: 4952683 bytes (4836 KiB)
UBIFS (ubi0:3): media format: w5/r0 (latest is w5/r0), UUID 975D738A-1015-45AE-BD40-D7FD8D10756F, small LPT model

Digi International, Inc.
https://www.digi.com


Digi EX15W
EX15W login:
----------------------------------------------------------------------------------
---------------linux-5.1-with-sergios-latest-patch--------------------------------

Linux version 5.1.0-ac0 (gerg@goober) (gcc version 5.4.0 (GCC)) #74 SMP Tue Jun 4 17:09:50 AEST 2019
SoC Type: MediaTek MT7621 ver:1 eco:3
printk: bootconsole [early0] enabled
CPU0 revision is: 0001992f (MIPS 1004Kc)
OF: fdt: No chosen node found, continuing without
MIPS: machine is Digi EX15
Determined physical RAM map:
 memory: 10000000 @ 00000000 (usable)
Initial ramdisk at: 0x81000000 (16920576 bytes)
VPE topology {2,2} total 4
Primary instruction cache 32kB, VIPT, 4-way, linesize 32 bytes.
Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 bytes
MIPS secondary cache 256kB, 8-way, linesize 32 bytes.
Zone ranges:
  Normal   [mem 0x0000000000000000-0x000000000fffffff]
Movable zone start for each node
Early memory node ranges
  node   0: [mem 0x0000000000000000-0x000000000fffffff]
Initmem setup node 0 [mem 0x0000000000000000-0x000000000fffffff]
random: get_random_bytes called from start_kernel+0xb0/0x524 with crng_init=0
percpu: Embedded 15 pages/cpu s30144 r8192 d23104 u61440
Built 1 zonelists, mobility grouping on.  Total pages: 65024
Kernel command line:  boot=network boot_ver=19.3.223.0-0c02c07312-dirty console=ttyS0,115200 ubi.mtd=3 root=/dev/ram0 rd_start=0x81000000 rd_size=0x1023000
Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
Writing ErrCtl register=00020510
Readback ErrCtl register=00020510
Memory: 233756K/262144K available (7216K kernel code, 247K rwdata, 1320K rodata, 292K init, 230K bss, 28388K reserved, 0K cma-reserved)
SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
rcu: Hierarchical RCU implementation.
rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
NR_IRQS: 256
clocksource: GIC: mask: 0xffffffffffffffff max_cycles: 0xcaf478abb4, max_idle_ns: 440795247997 ns
sched_clock: 32 bits at 100 Hz, resolution 10000000ns, wraps every 21474836475000000ns
Calibrating delay loop... 586.13 BogoMIPS (lpj=2930688)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
rcu: Hierarchical SRCU implementation.
smp: Bringing up secondary CPUs ...
Primary instruction cache 32kB, VIPT, 4-way, linesize 32 bytes.
Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 bytes
MIPS secondary cache 256kB, 8-way, linesize 32 bytes.
CPU1 revision is: 0001992f (MIPS 1004Kc)
Synchronize counters for CPU 1: done.
Primary instruction cache 32kB, VIPT, 4-way, linesize 32 bytes.
Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 bytes
MIPS secondary cache 256kB, 8-way, linesize 32 bytes.
CPU2 revision is: 0001992f (MIPS 1004Kc)
Synchronize counters for CPU 2: done.
Primary instruction cache 32kB, VIPT, 4-way, linesize 32 bytes.
Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 bytes
MIPS secondary cache 256kB, 8-way, linesize 32 bytes.
CPU3 revision is: 0001992f (MIPS 1004Kc)
Synchronize counters for CPU 3: done.
smp: Brought up 1 node, 4 CPUs
devtmpfs: initialized
clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
futex hash table entries: 1024 (order: 3, 32768 bytes)
pinctrl core: initialized pinctrl subsystem
NET: Registered protocol family 16
mt7621-pci 1e140000.pcie: failed to get gpio perst
mt7621-pci 1e140000.pcie: Parsing DT failed
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
pcf857x 0-0026: probed
i2c-mt7621 1e000900.i2c: clock 400KHz, re-start not support
clocksource: Switched to clocksource GIC
NET: Registered protocol family 2
tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes)
TCP established hash table entries: 2048 (order: 1, 8192 bytes)
TCP bind hash table entries: 2048 (order: 2, 16384 bytes)
TCP: Hash tables configured (established 2048 bind 2048)
UDP hash table entries: 256 (order: 1, 8192 bytes)
UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
NET: Registered protocol family 1
Trying to unpack rootfs image as initramfs...
rootfs image is not initramfs (invalid magic at start of compressed archive); looks like an initrd
Freeing initrd memory: 16524K
Initialise system trusted keyrings
workingset: timestamp_bits=30 max_order=16 bucket_order=0
squashfs: version 4.0 (2009/01/31) Phillip Lougher
random: fast init done
Key type asymmetric registered
Asymmetric key parser 'x509' registered
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)
mt7621_gpio 1e000600.gpio: registering 32 gpios
mt7621_gpio 1e000600.gpio: registering 32 gpios
mt7621_gpio 1e000600.gpio: registering 32 gpios
Serial: 8250/16550 driver, 3 ports, IRQ sharing disabled
printk: console [ttyS0] disabled
1e000c00.uartlite: ttyS0 at MMIO 0x1e000c00 (irq = 18, base_baud = 3125000) is a 16550A
printk: console [ttyS0] enabled
printk: console [ttyS0] enabled
printk: bootconsole [early0] disabled
printk: bootconsole [early0] disabled
1e000d00.uartlite: ttyS1 at MMIO 0x1e000d00 (irq = 19, base_baud = 3125000) is a 16550A
ledman: Copyright (C) SnapGear, 2000-2010.
ledman: registered ERASE switch on IRQ28
snapdog: HW/SW watchdog timer for SnapGear/Others
cacheinfo: Failed to find cpu0 device node
cacheinfo: Unable to detect cache hierarchy for CPU 0
brd: module loaded
mt7621-nand: NAND register bank at 0xbe003000
mt7621-nand: NAND ECC register bank at 0xbe003800
nand: device found, Manufacturer ID: 0x2c, Chip ID: 0xdc
nand: Micron NAND 512MiB 3,3V 8-bit
nand: 512 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 64
nand: ecc bit: 4, spare_per_sector: 16
Bad block table found at page 262080, version 0x01
Bad block table found at page 262016, version 0x01
5 fixed-partitions partitions found on MTD device MT7621-NAND
Creating 5 MTD partitions on "MT7621-NAND":
0x000000000000-0x000000200000 : "u-boot"
0x000000200000-0x000000300000 : "u-boot-env"
0x000000300000-0x000000500000 : "log"
0x000000500000-0x000020000000 : "flash"
0x000000000000-0x000020000000 : "all"
libphy: Fixed MDIO Bus: probed
tun: Universal TUN/TAP device driver, 1.6
libphy: mdio: probed
mtk_soc_eth 1e100000.ethernet: generated random MAC address a6:2b:8b:f3:dd:6a
mtk_soc_eth 1e100000.ethernet: connected mac 0 to PHY at fixed-0:00 [uid=00000000, driver=Generic PHY]
mtk_soc_eth 1e100000.ethernet eth0: mediatek frame engine at 0xbe100000, irq 21
PPP generic driver version 2.4.2
PPP BSD Compression module registered
PPP Deflate Compression module registered
PPP MPPE Compression module registered
NET: Registered protocol family 24
SLIP: version 0.8.4-NET3.019-NEWTTY (dynamic channels, max=256).
CSLIP: code copyright 1989 Regents of the University of California.
usbcore: registered new interface driver ar5523
usbcore: registered new interface driver asix
usbcore: registered new interface driver ax88179_178a
usbcore: registered new interface driver cdc_ether
usbcore: registered new interface driver cdc_eem
usbcore: registered new interface driver rndis_host
usbcore: registered new interface driver cdc_subset
usbcore: registered new interface driver cdc_ncm
usbcore: registered new interface driver qmi_wwan
usbcore: registered new interface driver cdc_mbim
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ehci-pci: EHCI PCI platform driver
ehci-platform: EHCI generic platform driver
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
ohci-pci: OHCI PCI platform driver
xhci-mtk 1e1c0000.xhci: xHCI Host Controller
xhci-mtk 1e1c0000.xhci: new USB bus registered, assigned bus number 1
xhci-mtk 1e1c0000.xhci: hcc params 0x01401198 hci version 0x96 quirks 0x0000000000210010
xhci-mtk 1e1c0000.xhci: irq 20, io mem 0x1e1c0000
usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.01
usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb1: Product: xHCI Host Controller
usb usb1: Manufacturer: Linux 5.1.0-ac0 xhci-hcd
usb usb1: SerialNumber: 1e1c0000.xhci
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
xhci-mtk 1e1c0000.xhci: xHCI Host Controller
xhci-mtk 1e1c0000.xhci: new USB bus registered, assigned bus number 2
xhci-mtk 1e1c0000.xhci: Host supports USB 3.0  SuperSpeed
usb usb2: We don't know the algorithms for LPM for this host, disabling LPM.
usb usb2: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.01
usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb2: Product: xHCI Host Controller
usb usb2: Manufacturer: Linux 5.1.0-ac0 xhci-hcd
usb usb2: SerialNumber: 1e1c0000.xhci
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 1 port detected
usbcore: registered new interface driver cdc_acm
cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
usbcore: registered new interface driver cdc_wdm
usbcore: registered new interface driver usb-storage
usbcore: registered new interface driver usbserial_generic
usbserial: USB Serial support registered for generic
usbcore: registered new interface driver ipw
usbserial: USB Serial support registered for IPWireless converter
usbcore: registered new interface driver option
usbserial: USB Serial support registered for GSM modem (1-port)
usbcore: registered new interface driver qcaux
usbserial: USB Serial support registered for qcaux
usbcore: registered new interface driver qcserial
usbserial: USB Serial support registered for Qualcomm USB modem
usbcore: registered new interface driver quatech2
usbserial: USB Serial support registered for Quatech 2nd gen USB to Serial Driver
usbcore: registered new interface driver usb_serial_simple
usbserial: USB Serial support registered for carelink
usbserial: USB Serial support registered for zio
usbserial: USB Serial support registered for funsoft
usbserial: USB Serial support registered for flashloader
usbserial: USB Serial support registered for google
usbserial: USB Serial support registered for libtransistor
usbserial: USB Serial support registered for vivopay
usbserial: USB Serial support registered for moto_modem
usbserial: USB Serial support registered for motorola_tetra
usbserial: USB Serial support registered for novatel_gps
usbserial: USB Serial support registered for hp4x
usbserial: USB Serial support registered for suunto
usbserial: USB Serial support registered for siemens_mpi
u32 classifier
    input device check on
ipip: IPv4 and MPLS over IPv4 tunneling driver
gre: GRE over IPv4 demultiplexor driver
ip_gre: GRE over IPv4 tunneling driver
Initializing XFRM netlink socket
NET: Registered protocol family 10
Segment Routing with IPv6
sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
NET: Registered protocol family 17
NET: Registered protocol family 15
8021q: 802.1Q VLAN Support v1.8
Loading compiled-in X.509 certificates
mt7621-pci-phy 1e149000.pcie-phy: Xtal is 40MHz
mt7621-pci 1e140000.pcie: Port 454043648 N_FTS = 0
mt7621-pci-phy 1e149000.pcie-phy: Xtal is 40MHz
mt7621-pci 1e140000.pcie: Port 454043648 N_FTS = 1
mt7621-pci-phy 1e14a000.pcie-phy: Xtal is 40MHz
mt7621-pci 1e140000.pcie: Port 454043648 N_FTS = 2
mt7621-pci 1e140000.pcie: pcie0 no card, disable it (RST & CLK)
mt7621-pci 1e140000.pcie: pcie1 no card, disable it (RST & CLK)
mt7621-pci 1e140000.pcie: pcie2 no card, disable it (RST & CLK)

               [HUNG]

---------------------------------------------------------------------------------

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