On Wed, Jul 25, 2018 at 08:21:35AM +1000, NeilBrown wrote:
> On Mon, Jul 16 2018, Sergio Paracuellos wrote:
>
> > This patch series include an attempt to avoid the use of custom
> > read and writes in driver code and use PCI subsystem common ones.
> >
> > In order to do this 'map_bus' callback is implemented and also
> > data structures for driver are included. The regs base address
> > is being readed from device tree and the driver gets clean a lot
> > of code.
> >
> > Changes in v4:
> > - Rebased onto staging-next.
> >
> > Changes in v3:
> > - Include new patches to delete all RALINK_BASE definition
> > dependant code and be able to avoid use of pci_legacy code.
> > - use devm_of_pci_get_host_bridge_resources,
> > devm_request_pci_bus_resources and pci_scan_root_bus_bridge
> > and pci_bus_add_devices
> >
> > Changes in v2:
> > - squash PATCH 1 and PATCH 2 of previous series in only PATCH 1
> > - Change name for host structure.
> > - Create a new port structure (platform has 3 pcie controllers)
> > - Replace the use of pci_generic_config_[read|write]32 in favour
> > of pci_generic_config_[read|write] and change map_bus implemen-
> > tation for hopefully the right one.
> >
> > Best regards,
>
> Thanks for these.
Hi Neil,
Thanks for the feedback and your time testing this.
> I added
> diff --git a/arch/mips/ralink/Kconfig b/arch/mips/ralink/Kconfig
> index 1f9cb0e3c79a..50779b3379db 100644
> --- a/arch/mips/ralink/Kconfig
> +++ b/arch/mips/ralink/Kconfig
> @@ -51,6 +51,7 @@ choice
> select COMMON_CLK
> select CLKSRC_MIPS_GIC
> select HW_HAS_PCI
> + select PCI_DRIVERS_GENERIC
> endchoice
>
> choice
>
> so that I could build and test it - maybe there is somewhere else that
> "select" can go while this is still in staging..
Yes, that's the place I put that select also to be able to compile
properly and not get include the PCI_LEGACY configuration. I don't really
know where this select should be included while this driver is in staging...
Maybe we should add a Kconfig for this PCI controller in driver directory
and just select it, like:
config PCI_MT7621
bool "MT7621 PCI controler driver for MT7621 Mediatek SOCs"
select PCI_DRIVERS_GENERIC
Maybe there is a better approach... What do you think?
>
> The system boots and can see the three pcie-attached SATA controllers:
We are in the correct way :-).
>
> # lspci
> 00:00.0 PCI bridge: Device 0e8d:0801 (rev 01)
> 00:01.0 PCI bridge: Device 0e8d:0801 (rev 01)
> 00:02.0 PCI bridge: Device 0e8d:0801 (rev 01)
> 01:00.0 IDE interface: ASMedia Technology Inc. ASM1061 SATA IDE Controller (rev 02)
> 02:00.0 IDE interface: ASMedia Technology Inc. ASM1061 SATA IDE Controller (rev 02)
> 03:00.0 IDE interface: ASMedia Technology Inc. ASM1061 SATA IDE Controller (rev 02)
>
> but it cannot see the drive that is plugged into one of these.
> Below is the first 10 seconds of dmesg.
> I suspect the relevant bit is
>
> [ 8.680000] ahci: probe of 0000:01:00.0 failed with error -22
> [ 8.700000] ahci: probe of 0000:02:00.0 failed with error -22
> [ 8.710000] ahci: probe of 0000:03:00.0 failed with error -22
Mmmm... So these three seems to be returning EINVAL trying to attach
the driver in 'really_probe' function (drivers/base/dd.c). It is going
through the error path 'pinctrl_bind_failed' because of return error
from pinctrl_bind_pins() function call. I don't really know why this is
happening after the PCI changes... Some debug traces will be helpful.
In the meantime I will check this code more deeply and try to figure out
why this is happening.
>
> I haven't dug deeper yet.
>
> Thanks,
> NeilBrown
Best regards,
Sergio Paracuellos
>
>
> [ 0.000000] Linux version 4.18.0-rc5+ (neilb@noble) (gcc version 7.2.0 (GCC)) #205 SMP Wed Jul 25 08:12:13 AEST 2018
> [ 0.000000] SoC Type: MediaTek MT7621 ver:1 eco:3
> [ 0.000000] bootconsole [early0] enabled
> [ 0.000000] CPU0 revision is: 0001992f (MIPS 1004Kc)
> [ 0.000000] MIPS: machine is GB-PC1
> [ 0.000000] Determined physical RAM map:
> [ 0.000000] memory: 1c000000 @ 00000000 (usable)
> [ 0.000000] memory: 04000000 @ 20000000 (usable)
> [ 0.000000] Initrd not found or empty - disabling initrd
> [ 0.000000] VPE topology {2,2} total 4
> [ 0.000000] Primary instruction cache 32kB, VIPT, 4-way, linesize 32 bytes.
> [ 0.000000] Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 bytes
> [ 0.000000] MIPS secondary cache 256kB, 8-way, linesize 32 bytes.
> [ 0.000000] Zone ranges:
> [ 0.000000] Normal [mem 0x0000000000000000-0x000000001fffffff]
> [ 0.000000] HighMem [mem 0x0000000020000000-0x0000000023ffffff]
> [ 0.000000] Movable zone start for each node
> [ 0.000000] Early memory node ranges
> [ 0.000000] node 0: [mem 0x0000000000000000-0x000000001bffffff]
> [ 0.000000] node 0: [mem 0x0000000020000000-0x0000000023ffffff]
> [ 0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x0000000023ffffff]
> [ 0.000000] On node 0 totalpages: 131072
> [ 0.000000] Normal zone: 1024 pages used for memmap
> [ 0.000000] Normal zone: 0 pages reserved
> [ 0.000000] Normal zone: 114688 pages, LIFO batch:31
> [ 0.000000] HighMem zone: 16384 pages, LIFO batch:3
> [ 0.000000] random: get_random_bytes called from start_kernel+0xb4/0x4ec with crng_init=0
> [ 0.000000] percpu: Embedded 15 pages/cpu @(ptrval) s30480 r8192 d22768 u61440
> [ 0.000000] pcpu-alloc: s30480 r8192 d22768 u61440 alloc=15*4096
> [ 0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3
> [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 130048
> [ 0.000000] Kernel command line: console=ttyS0,57600
> [ 0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
> [ 0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
> [ 0.000000] Writing ErrCtl register=000108a2
> [ 0.000000] Readback ErrCtl register=000108a2
> [ 0.000000] Memory: 504788K/524288K available (6131K kernel code, 232K rwdata, 1052K rodata, 6524K init, 241K bss, 19500K reserved, 0K cma-reserved, 65536K highmem)
> [ 0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
> [ 0.000000] Hierarchical RCU implementation.
> [ 0.000000] NR_IRQS: 256
> [ 0.000000] clocksource: GIC: mask: 0xffffffffffffffff max_cycles: 0xcf914c9718, max_idle_ns: 440795231327 ns
> [ 0.000000] sched_clock: 32 bits at 100 Hz, resolution 10000000ns, wraps every 21474836475000000ns
> [ 0.010000] Calibrating delay loop... 597.60 BogoMIPS (lpj=2988032)
> [ 0.070000] pid_max: default: 32768 minimum: 301
> [ 0.080000] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
> [ 0.090000] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
> [ 0.100000] Hierarchical SRCU implementation.
> [ 0.110000] smp: Bringing up secondary CPUs ...
> [ 0.120000] Primary instruction cache 32kB, VIPT, 4-way, linesize 32 bytes.
> [ 0.120000] Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 bytes
> [ 0.120000] MIPS secondary cache 256kB, 8-way, linesize 32 bytes.
> [ 0.120000] CPU1 revision is: 0001992f (MIPS 1004Kc)
> [ 0.180000] Synchronize counters for CPU 1: done.
> [ 0.220000] Primary instruction cache 32kB, VIPT, 4-way, linesize 32 bytes.
> [ 0.220000] Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 bytes
> [ 0.220000] MIPS secondary cache 256kB, 8-way, linesize 32 bytes.
> [ 0.220000] CPU2 revision is: 0001992f (MIPS 1004Kc)
> [ 0.280000] Synchronize counters for CPU 2: done.
> [ 0.320000] Primary instruction cache 32kB, VIPT, 4-way, linesize 32 bytes.
> [ 0.320000] Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 bytes
> [ 0.320000] MIPS secondary cache 256kB, 8-way, linesize 32 bytes.
> [ 0.320000] CPU3 revision is: 0001992f (MIPS 1004Kc)
> [ 0.380000] Synchronize counters for CPU 3: done.
> [ 0.420000] smp: Brought up 1 node, 4 CPUs
> [ 0.430000] devtmpfs: initialized
> [ 0.480000] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
> [ 0.490000] futex hash table entries: 1024 (order: 3, 32768 bytes)
> [ 0.500000] pinctrl core: initialized pinctrl subsystem
> [ 0.510000] NET: Registered protocol family 16
> [ 0.560000] FPU Affinity set after 12000 emulations
> [ 0.570000] mt7621-pci 1e140000.pcie: host bridge /pcie@1e140000 ranges:
> [ 0.580000] mt7621-pci 1e140000.pcie: MEM 0x60000000..0x6fffffff -> 0x00000000
> [ 0.600000] mt7621-pci 1e140000.pcie: IO 0x1e160000..0x1e16ffff -> 0x00000000
> [ 0.910000] ***** Xtal 40MHz *****
> [ 0.920000] Port 0 N_FTS = 1b102800
> [ 0.930000] Port 1 N_FTS = 1b102800
> [ 0.930000] Port 2 N_FTS = 1b102800
> [ 1.990000] PCIE0 enabled
> [ 2.000000] PCIE1 enabled
> [ 2.000000] PCIE2 enabled
> [ 2.010000] mt7621-pci 1e140000.pcie: PCI host bridge to bus 0000:00
> [ 2.020000] pci_bus 0000:00: No busn resource found for root bus, will use [bus 00-ff]
> [ 2.030000] pci 0000:00:00.0: [0e8d:0801] type 01 class 0x060400
> [ 2.040000] pci 0000:00:00.0: reg 0x10: [mem 0x00000000-0x7fffffff]
> [ 2.040000] pci 0000:00:00.0: reg 0x14: [mem 0x00000000-0x0000ffff]
> [ 2.040000] pci 0000:00:00.0: supports D1
> [ 2.040000] pci 0000:00:00.0: PME# supported from D0 D1 D3hot
> [ 2.040000] pci 0000:00:01.0: [0e8d:0801] type 01 class 0x060400
> [ 2.040000] pci 0000:00:01.0: reg 0x10: [mem 0x00000000-0x7fffffff]
> [ 2.040000] pci 0000:00:01.0: reg 0x14: [mem 0x00000000-0x0000ffff]
> [ 2.040000] pci 0000:00:01.0: supports D1
> [ 2.040000] pci 0000:00:01.0: PME# supported from D0 D1 D3hot
> [ 2.040000] pci 0000:00:02.0: [0e8d:0801] type 01 class 0x060400
> [ 2.040000] pci 0000:00:02.0: reg 0x10: [mem 0x00000000-0x7fffffff]
> [ 2.040000] pci 0000:00:02.0: reg 0x14: [mem 0x00000000-0x0000ffff]
> [ 2.040000] pci 0000:00:02.0: supports D1
> [ 2.040000] pci 0000:00:02.0: PME# supported from D0 D1 D3hot
> [ 2.040000] pci 0000:00:00.0: bridge configuration invalid ([bus 00-00]), reconfiguring
> [ 2.060000] pci 0000:00:01.0: bridge configuration invalid ([bus 00-00]), reconfiguring
> [ 2.070000] pci 0000:00:02.0: bridge configuration invalid ([bus 00-00]), reconfiguring
> [ 2.090000] pci 0000:01:00.0: [1b21:0611] type 00 class 0x010185
> [ 2.090000] pci 0000:01:00.0: reg 0x10: [io 0x0000-0x0007]
> [ 2.090000] pci 0000:01:00.0: reg 0x14: [io 0x0000-0x0003]
> [ 2.090000] pci 0000:01:00.0: reg 0x18: [io 0x0000-0x0007]
> [ 2.090000] pci 0000:01:00.0: reg 0x1c: [io 0x0000-0x0003]
> [ 2.090000] pci 0000:01:00.0: reg 0x20: [io 0x0000-0x000f]
> [ 2.090000] pci 0000:01:00.0: reg 0x24: [mem 0x00000000-0x000001ff]
> [ 2.090000] pci 0000:00:00.0: PCI bridge to [bus 01-ff]
> [ 2.100000] pci 0000:00:00.0: bridge window [io 0x0000-0x0fff]
> [ 2.100000] pci 0000:00:00.0: bridge window [mem 0x00000000-0x000fffff]
> [ 2.100000] pci 0000:00:00.0: bridge window [mem 0x00000000-0x000fffff pref]
> [ 2.100000] pci_bus 0000:01: busn_res: [bus 01-ff] end is updated to 01
> [ 2.100000] pci 0000:02:00.0: [1b21:0611] type 00 class 0x010185
> [ 2.100000] pci 0000:02:00.0: reg 0x10: [io 0x0000-0x0007]
> [ 2.100000] pci 0000:02:00.0: reg 0x14: [io 0x0000-0x0003]
> [ 2.100000] pci 0000:02:00.0: reg 0x18: [io 0x0000-0x0007]
> [ 2.100000] pci 0000:02:00.0: reg 0x1c: [io 0x0000-0x0003]
> [ 2.100000] pci 0000:02:00.0: reg 0x20: [io 0x0000-0x000f]
> [ 2.100000] pci 0000:02:00.0: reg 0x24: [mem 0x00000000-0x000001ff]
> [ 2.100000] pci 0000:00:01.0: PCI bridge to [bus 02-ff]
> [ 2.110000] pci 0000:00:01.0: bridge window [io 0x0000-0x0fff]
> [ 2.110000] pci 0000:00:01.0: bridge window [mem 0x00000000-0x000fffff]
> [ 2.110000] pci 0000:00:01.0: bridge window [mem 0x00000000-0x000fffff pref]
> [ 2.110000] pci_bus 0000:02: busn_res: [bus 02-ff] end is updated to 02
> [ 2.110000] pci 0000:03:00.0: [1b21:0611] type 00 class 0x010185
> [ 2.110000] pci 0000:03:00.0: reg 0x10: [io 0x0000-0x0007]
> [ 2.110000] pci 0000:03:00.0: reg 0x14: [io 0x0000-0x0003]
> [ 2.110000] pci 0000:03:00.0: reg 0x18: [io 0x0000-0x0007]
> [ 2.110000] pci 0000:03:00.0: reg 0x1c: [io 0x0000-0x0003]
> [ 2.110000] pci 0000:03:00.0: reg 0x20: [io 0x0000-0x000f]
> [ 2.110000] pci 0000:03:00.0: reg 0x24: [mem 0x00000000-0x000001ff]
> [ 2.120000] pci 0000:00:02.0: PCI bridge to [bus 03-ff]
> [ 2.130000] pci 0000:00:02.0: bridge window [io 0x0000-0x0fff]
> [ 2.130000] pci 0000:00:02.0: bridge window [mem 0x00000000-0x000fffff]
> [ 2.130000] pci 0000:00:02.0: bridge window [mem 0x00000000-0x000fffff pref]
> [ 2.130000] pci_bus 0000:03: busn_res: [bus 03-ff] end is updated to 03
> [ 2.130000] pci_bus 0000:00: busn_res: [bus 00-ff] end is updated to 03
> [ 2.130000] pci 0000:00:00.0: BAR 0: no space for [mem size 0x80000000]
> [ 2.140000] pci 0000:00:00.0: BAR 0: failed to assign [mem size 0x80000000]
> [ 2.150000] pci 0000:00:01.0: BAR 0: no space for [mem size 0x80000000]
> [ 2.170000] pci 0000:00:01.0: BAR 0: failed to assign [mem size 0x80000000]
> [ 2.180000] pci 0000:00:02.0: BAR 0: no space for [mem size 0x80000000]
> [ 2.190000] pci 0000:00:02.0: BAR 0: failed to assign [mem size 0x80000000]
> [ 2.210000] pci 0000:00:00.0: BAR 8: no space for [mem size 0x00100000]
> [ 2.220000] pci 0000:00:00.0: BAR 8: failed to assign [mem size 0x00100000]
> [ 2.230000] pci 0000:00:00.0: BAR 9: no space for [mem size 0x00100000 pref]
> [ 2.250000] pci 0000:00:00.0: BAR 9: failed to assign [mem size 0x00100000 pref]
> [ 2.260000] pci 0000:00:01.0: BAR 8: no space for [mem size 0x00100000]
> [ 2.270000] pci 0000:00:01.0: BAR 8: failed to assign [mem size 0x00100000]
> [ 2.290000] pci 0000:00:01.0: BAR 9: no space for [mem size 0x00100000 pref]
> [ 2.300000] pci 0000:00:01.0: BAR 9: failed to assign [mem size 0x00100000 pref]
> [ 2.320000] pci 0000:00:02.0: BAR 8: no space for [mem size 0x00100000]
> [ 2.330000] pci 0000:00:02.0: BAR 8: failed to assign [mem size 0x00100000]
> [ 2.340000] pci 0000:00:02.0: BAR 9: no space for [mem size 0x00100000 pref]
> [ 2.360000] pci 0000:00:02.0: BAR 9: failed to assign [mem size 0x00100000 pref]
> [ 2.370000] pci 0000:00:00.0: BAR 1: no space for [mem size 0x00010000]
> [ 2.380000] pci 0000:00:00.0: BAR 1: failed to assign [mem size 0x00010000]
> [ 2.400000] pci 0000:00:01.0: BAR 1: no space for [mem size 0x00010000]
> [ 2.410000] pci 0000:00:01.0: BAR 1: failed to assign [mem size 0x00010000]
> [ 2.420000] pci 0000:00:02.0: BAR 1: no space for [mem size 0x00010000]
> [ 2.440000] pci 0000:00:02.0: BAR 1: failed to assign [mem size 0x00010000]
> [ 2.450000] pci 0000:00:00.0: BAR 7: no space for [io size 0x1000]
> [ 2.460000] pci 0000:00:00.0: BAR 7: failed to assign [io size 0x1000]
> [ 2.480000] pci 0000:00:01.0: BAR 7: no space for [io size 0x1000]
> [ 2.490000] pci 0000:00:01.0: BAR 7: failed to assign [io size 0x1000]
> [ 2.500000] pci 0000:00:02.0: BAR 7: no space for [io size 0x1000]
> [ 2.510000] pci 0000:00:02.0: BAR 7: failed to assign [io size 0x1000]
> [ 2.530000] pci 0000:01:00.0: BAR 5: no space for [mem size 0x00000200]
> [ 2.540000] pci 0000:01:00.0: BAR 5: failed to assign [mem size 0x00000200]
> [ 2.550000] pci 0000:01:00.0: BAR 4: no space for [io size 0x0010]
> [ 2.570000] pci 0000:01:00.0: BAR 4: failed to assign [io size 0x0010]
> [ 2.580000] pci 0000:01:00.0: BAR 0: no space for [io size 0x0008]
> [ 2.590000] pci 0000:01:00.0: BAR 0: failed to assign [io size 0x0008]
> [ 2.600000] pci 0000:01:00.0: BAR 2: no space for [io size 0x0008]
> [ 2.620000] pci 0000:01:00.0: BAR 2: failed to assign [io size 0x0008]
> [ 2.630000] pci 0000:01:00.0: BAR 1: no space for [io size 0x0004]
> [ 2.640000] pci 0000:01:00.0: BAR 1: failed to assign [io size 0x0004]
> [ 2.650000] pci 0000:01:00.0: BAR 3: no space for [io size 0x0004]
> [ 2.670000] pci 0000:01:00.0: BAR 3: failed to assign [io size 0x0004]
> [ 2.680000] pci 0000:00:00.0: PCI bridge to [bus 01]
> [ 2.690000] pci 0000:02:00.0: BAR 5: no space for [mem size 0x00000200]
> [ 2.700000] pci 0000:02:00.0: BAR 5: failed to assign [mem size 0x00000200]
> [ 2.720000] pci 0000:02:00.0: BAR 4: no space for [io size 0x0010]
> [ 2.730000] pci 0000:02:00.0: BAR 4: failed to assign [io size 0x0010]
> [ 2.740000] pci 0000:02:00.0: BAR 0: no space for [io size 0x0008]
> [ 2.750000] pci 0000:02:00.0: BAR 0: failed to assign [io size 0x0008]
> [ 2.770000] pci 0000:02:00.0: BAR 2: no space for [io size 0x0008]
> [ 2.780000] pci 0000:02:00.0: BAR 2: failed to assign [io size 0x0008]
> [ 2.790000] pci 0000:02:00.0: BAR 1: no space for [io size 0x0004]
> [ 2.800000] pci 0000:02:00.0: BAR 1: failed to assign [io size 0x0004]
> [ 2.820000] pci 0000:02:00.0: BAR 3: no space for [io size 0x0004]
> [ 2.830000] pci 0000:02:00.0: BAR 3: failed to assign [io size 0x0004]
> [ 2.840000] pci 0000:00:01.0: PCI bridge to [bus 02]
> [ 2.850000] pci 0000:03:00.0: BAR 5: no space for [mem size 0x00000200]
> [ 2.860000] pci 0000:03:00.0: BAR 5: failed to assign [mem size 0x00000200]
> [ 2.880000] pci 0000:03:00.0: BAR 4: no space for [io size 0x0010]
> [ 2.890000] pci 0000:03:00.0: BAR 4: failed to assign [io size 0x0010]
> [ 2.900000] pci 0000:03:00.0: BAR 0: no space for [io size 0x0008]
> [ 2.910000] pci 0000:03:00.0: BAR 0: failed to assign [io size 0x0008]
> [ 2.930000] pci 0000:03:00.0: BAR 2: no space for [io size 0x0008]
> [ 2.940000] pci 0000:03:00.0: BAR 2: failed to assign [io size 0x0008]
> [ 2.950000] pci 0000:03:00.0: BAR 1: no space for [io size 0x0004]
> [ 2.970000] pci 0000:03:00.0: BAR 1: failed to assign [io size 0x0004]
> [ 2.980000] pci 0000:03:00.0: BAR 3: no space for [io size 0x0004]
> [ 2.990000] pci 0000:03:00.0: BAR 3: failed to assign [io size 0x0004]
> [ 3.000000] pci 0000:00:02.0: PCI bridge to [bus 03]
> [ 3.080000] SCSI subsystem initialized
> [ 3.090000] libata version 3.00 loaded.
> [ 3.100000] random: fast init done
> [ 3.100000] clocksource: Switched to clocksource GIC
> [ 3.130000] NET: Registered protocol family 2
> [ 3.140000] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes)
> [ 3.150000] TCP established hash table entries: 4096 (order: 2, 16384 bytes)
> [ 3.170000] TCP bind hash table entries: 4096 (order: 3, 32768 bytes)
> [ 3.180000] TCP: Hash tables configured (established 4096 bind 4096)
> [ 3.190000] UDP hash table entries: 256 (order: 1, 8192 bytes)
> [ 3.200000] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
> [ 3.220000] NET: Registered protocol family 1
> [ 3.230000] PCI: CLS 0 bytes, default 32
> [ 8.200000] Initialise system trusted keyrings
> [ 8.210000] workingset: timestamp_bits=30 max_order=17 bucket_order=0
> [ 8.340000] squashfs: version 4.0 (2009/01/31) Phillip Lougher
> [ 8.350000] jffs2: version 2.2. (NAND) (SUMMARY) \xffffffc2\xffffffa9 2001-2006 Red Hat, Inc.
> [ 8.380000] SGI XFS with security attributes, no debug enabled
> [ 8.430000] Key type asymmetric registered
> [ 8.440000] Asymmetric key parser 'x509' registered
> [ 8.450000] bounce: pool size: 64 pages
> [ 8.450000] io scheduler noop registered
> [ 8.460000] io scheduler deadline registered (default)
> [ 8.470000] io scheduler mq-deadline registered (default)
> [ 8.480000] io scheduler kyber registered
> [ 8.500000] Serial: 8250/16550 driver, 3 ports, IRQ sharing disabled
> [ 8.520000] console [ttyS0] disabled
> [ 8.530000] 1e000c00.uartlite: ttyS0 at MMIO 0x1e000c00 (irq = 18, base_baud = 3125000) is a 16550A
> [ 8.550000] console [ttyS0] enabled
> [ 8.560000] bootconsole [early0] disabled
> [ 8.580000] cacheinfo: Failed to find cpu0 device node
> [ 8.590000] cacheinfo: Unable to detect cache hierarchy for CPU 0
> [ 8.670000] loop: module loaded
> [ 8.680000] ahci 0000:01:00.0: version 3.0
> [ 8.680000] ahci: probe of 0000:01:00.0 failed with error -22
> [ 8.700000] ahci: probe of 0000:02:00.0 failed with error -22
> [ 8.710000] ahci: probe of 0000:03:00.0 failed with error -22
> [ 8.720000] libphy: Fixed MDIO Bus: probed
> [ 8.730000] tun: Universal TUN/TAP device driver, 1.6
> [ 8.750000] sdhci: Secure Digital Host Controller Interface driver
> [ 8.760000] sdhci: Copyright(c) Pierre Ossman
> [ 8.770000] spi-mt7621 1e000b00.spi: sys_freq: 225000000
> [ 8.780000] m25p80 spi0.0: w25q256 (32768 Kbytes)
> [ 8.790000] 4 fixed-partitions partitions found on MTD device spi0.0
> [ 8.810000] Creating 4 MTD partitions on "spi0.0":
> [ 8.820000] 0x000000000000-0x000000030000 : "u-boot"
> [ 8.830000] 0x000000030000-0x000000040000 : "u-boot-env"
> [ 8.850000] 0x000000040000-0x000000050000 : "factory"
> [ 8.870000] 0x000000050000-0x000002000000 : "firmware"
> [ 8.940000] libphy: mdio: probed
> [ 8.970000] mtk_soc_eth 1e100000.ethernet: generated random MAC address 6e:14:15:9c:55:5b
> [ 8.990000] mtk_soc_eth 1e100000.ethernet eth0: mediatek frame engine at 0xbe100000, irq 21
> [ 9.020000] NET: Registered protocol family 10
> [ 9.040000] Segment Routing with IPv6
> [ 9.050000] NET: Registered protocol family 17
> [ 9.060000] 8021q: 802.1Q VLAN Support v1.8
> [ 9.070000] Loading compiled-in X.509 certificates
> [ 9.090000] hctosys: unable to open rtc device (rtc0)
> [ 9.120000] Freeing unused kernel memory: 6524K
> [ 9.130000] This architecture does not have kernel memory protection.
> [ 9.170000] mmc0: new high speed SD card at address 0002
> [ 9.190000] mmcblk0: mmc0:0002 00000 1.88 GiB
> [ 9.380000] usbcore: registered new interface driver usbfs
> [ 9.400000] usbcore: registered new interface driver hub
> [ 9.420000] usbcore: registered new device driver usb
> [ 9.530000] xhci-mtk 1e1c0000.xhci: xHCI Host Controller
> [ 9.540000] xhci-mtk 1e1c0000.xhci: new USB bus registered, assigned bus number 1
> [ 9.570000] xhci-mtk 1e1c0000.xhci: hcc params 0x01401198 hci version 0x96 quirks 0x0000000000210010
> [ 9.590000] xhci-mtk 1e1c0000.xhci: irq 20, io mem 0x1e1c0000
> [ 9.630000] hub 1-0:1.0: USB hub found
> [ 9.630000] hub 1-0:1.0: 2 ports detected
> [ 9.660000] xhci-mtk 1e1c0000.xhci: xHCI Host Controller
> [ 9.670000] xhci-mtk 1e1c0000.xhci: new USB bus registered, assigned bus number 2
> [ 9.680000] xhci-mtk 1e1c0000.xhci: Host supports USB 3.0 SuperSpeed
> [ 9.700000] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM.
> [ 9.740000] hub 2-0:1.0: USB hub found
> [ 9.740000] hub 2-0:1.0: 1 port detected
> [ 9.810000] usbcore: registered new interface driver usb-storage
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