Solid green screen with experimental panfrost/hdmi sc2 support

Tue Apr 26 01:54:50 PDT 2022

On 26.04.2022 09:28, Neil Armstrong wrote:
> Hi,
> 
> On 25/04/2022 22:21, Heiner Kallweit wrote:
>> Based on a HK1 RBOX X4 (S905X4) I'm "playing" with mainline support for SC2.
>> This Android TV box is based on the ah212 reference board according to uboot prompt.
>> Most relevant things are working meanwhile (eMMC, SD, SDIO/WiFi, USB2/3, ethernet)
>> and I can use the system headless.
>> However I'm struggling with panfrost/hdmi. With SC2 a lot of vpu registers have been
>> relocated (e.g. all hhi regs), even though the functionality seems to be more or less
>> compatible to G12A. I had to extend the timeout for HDMI PLL locking.
>> After having sorted out such things:
>> - dmesg for panfrost and hdmi looks normal
>> - monitor detects signal and OSD shows correct resolution (1920x1080 at 60 in my case).
>> I'd interpret this in a way that the clock/divider/mux registers are programmed correctly.
>> However I just get a solid green screen. From what I've read this can be caused
>> by a failing hdmi handshake. Not being an expert in DRM/HDMI any hint on where to start
>> debugging would be appreciated.
> 
> A solid green means the pipeline has been correctly set up in regard to the clocking,
> and some (invalid) pixels flows to the HDMI transceiver.
> 
> This means you can consider the HDMI & clock portion OK, and propably the ENCP aswell.
> 
> The OSD video pipeline is the following:
> 
> [ DDR -> VIU (RGB2YUV) -> VPP (Blending of planes, Scaling) -> ENCP (Pixel generation) -> HDMI-TX -> TMDS]
> 
> Green means value 0 in YUV, this means 0 is in the YUV pipeline, so it must be an issue with the VIU
> part reading from DDR and doing the color conversion.
> 
> Check in the downstrean source code how the SC2 VPU is initialized, and looks at the differences since SM1.
> Look at the VIU & VPP stuff init.
> 

Thanks a lot for the explanation and for providing a starting point!

> Neil
> 
Heiner

>>
>>
>> Booting Linux on physical CPU 0x0000000000 [0x412fd050]
>> Linux version 5.18.0-rc2-next-20220414+ (root at zotac) (aarch64-linux-gnu-gcc (GCC) 11.2.0, GNU ld (GNU Binutils) 2.38) #22 SMP PREEMPT Sun Apr 24 00:04:54 CEST 2022
>> Machine model: Amlogic SC2 AH212
>> Reserved memory: created CMA memory pool at 0x0000000074400000, size 188 MiB
>> OF: reserved mem: initialized node linux,cma, compatible id shared-dma-pool
>> NUMA: No NUMA configuration found
>> NUMA: Faking a node at [mem 0x0000000000000000-0x000000007fffffff]
>> NUMA: NODE_DATA [mem 0x73fe8b40-0x73feafff]
>> Zone ranges:
>>    DMA      [mem 0x0000000000000000-0x000000007fffffff]
>>    DMA32    empty
>>    Normal   empty
>> Movable zone start for each node
>> Early memory node ranges
>>    node   0: [mem 0x0000000000000000-0x0000000000ffffff]
>>    node   0: [mem 0x0000000001000000-0x0000000004ffffff]
>>    node   0: [mem 0x0000000005000000-0x00000000083fffff]
>>    node   0: [mem 0x0000000008400000-0x000000000fffffff]
>>    node   0: [mem 0x0000000010000000-0x00000000101fffff]
>>    node   0: [mem 0x0000000010200000-0x000000007fffffff]
>> Initmem setup node 0 [mem 0x0000000000000000-0x000000007fffffff]
>> psci: probing for conduit method from DT.
>> psci: PSCIv1.0 detected in firmware.
>> psci: Using standard PSCI v0.2 function IDs
>> psci: Trusted OS migration not required
>> psci: SMC Calling Convention v1.1
>> percpu: Embedded 20 pages/cpu s42792 r8192 d30936 u81920
>> pcpu-alloc: s42792 r8192 d30936 u81920 alloc=20*4096
>> pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3
>> Detected VIPT I-cache on CPU0
>> CPU features: detected: Virtualization Host Extensions
>> CPU features: detected: ARM errata 1165522, 1319367, or 1530923
>> alternatives: patching kernel code
>> Fallback order for Node 0: 0
>> Built 1 zonelists, mobility grouping on.  Total pages: 516096
>> Policy zone: DMA
>> Kernel command line: rw root=/dev/mmcblk0p3 rootwait console=ttyAML0,921600n8 earlyprintk=serial,ttyAML0,921600 audit=0
>> audit: disabled (until reboot)
>> Unknown kernel command line parameters "earlyprintk=serial,ttyAML0,921600", will be passed to user space.
>> Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, linear)
>> Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, linear)
>> mem auto-init: stack:off, heap alloc:off, heap free:off
>> Memory: 1772604K/2097152K available (10752K kernel code, 1442K rwdata, 4296K rodata, 2816K init, 472K bss, 132036K reserved, 192512K cma-reserved)
>> SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
>> rcu: Preemptible hierarchical RCU implementation.
>> rcu:     RCU event tracing is enabled.
>> rcu:     RCU restricting CPUs from NR_CPUS=256 to nr_cpu_ids=4.
>>     Trampoline variant of Tasks RCU enabled.
>>     Tracing variant of Tasks RCU enabled.
>> rcu: RCU calculated value of scheduler-enlistment delay is 25 jiffies.
>> rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=4
>> NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
>> Root IRQ handler: gic_handle_irq
>> GIC: Using split EOI/Deactivate mode
>> rcu: srcu_init: Setting srcu_struct sizes based on contention.
>> random: get_random_bytes called from start_kernel+0x6e0/0x9b8 with crng_init=0
>> arch_timer: cp15 timer(s) running at 24.00MHz (phys).
>> clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x588fe9dc0, max_idle_ns: 440795202592 ns
>> sched_clock: 56 bits at 24MHz, resolution 41ns, wraps every 4398046511097ns
>> Console: colour dummy device 80x25
>> Calibrating delay loop (skipped), value calculated using timer frequency.. 48.00 BogoMIPS (lpj=96000)
>> pid_max: default: 32768 minimum: 301
>> LSM: Security Framework initializing
>> Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, linear)
>> Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, linear)
>> cblist_init_generic: Setting adjustable number of callback queues.
>> cblist_init_generic: Setting shift to 2 and lim to 1.
>> cblist_init_generic: Setting shift to 2 and lim to 1.
>> rcu: Hierarchical SRCU implementation.
>> smp: Bringing up secondary CPUs ...
>> Detected VIPT I-cache on CPU1
>> CPU1: Booted secondary processor 0x0000000100 [0x412fd050]
>> Detected VIPT I-cache on CPU2
>> CPU2: Booted secondary processor 0x0000000200 [0x412fd050]
>> Detected VIPT I-cache on CPU3
>> CPU3: Booted secondary processor 0x0000000300 [0x412fd050]
>> smp: Brought up 1 node, 4 CPUs
>> SMP: Total of 4 processors activated.
>> CPU features: detected: 32-bit EL0 Support
>> CPU features: detected: 32-bit EL1 Support
>> CPU features: detected: Data cache clean to the PoU not required for I/D coherence
>> CPU features: detected: Common not Private translations
>> CPU features: detected: CRC32 instructions
>> CPU features: detected: RCpc load-acquire (LDAPR)
>> CPU features: detected: LSE atomic instructions
>> CPU features: detected: Privileged Access Never
>> CPU features: detected: RAS Extension Support
>> CPU features: detected: Speculative Store Bypassing Safe (SSBS)
>> CPU: All CPU(s) started at EL2
>> devtmpfs: initialized
>> clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
>> futex hash table entries: 1024 (order: 4, 65536 bytes, linear)
>> pinctrl core: initialized pinctrl subsystem
>> NET: Registered PF_NETLINK/PF_ROUTE protocol family
>> DMA: preallocated 256 KiB GFP_KERNEL pool for atomic allocations
>> DMA: preallocated 256 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations
>> DMA: preallocated 256 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations
>> thermal_sys: Registered thermal governor 'step_wise'
>> thermal_sys: Registered thermal governor 'power_allocator'
>> cpuidle: using governor menu
>> hw-breakpoint: found 6 breakpoint and 4 watchpoint registers.
>> ASID allocator initialised with 65536 entries
>> Serial: AMBA PL011 UART driver
>> platform ff000000.vpu: Fixing up cyclic dependency with fe300000.hdmi-tx
>> platform cvbs-connector: Fixing up cyclic dependency with ff000000.vpu
>> platform hdmi-connector: Fixing up cyclic dependency with fe300000.hdmi-tx
>> HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages
>> HugeTLB registered 32.0 MiB page size, pre-allocated 0 pages
>> HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
>> HugeTLB registered 64.0 KiB page size, pre-allocated 0 pages
>> iommu: Default domain type: Translated
>> iommu: DMA domain TLB invalidation policy: strict mode
>> SCSI subsystem initialized
>> usbcore: registered new interface driver usbfs
>> usbcore: registered new interface driver hub
>> usbcore: registered new device driver usb
>> pps_core: LinuxPPS API ver. 1 registered
>> pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti at linux.it>
>> PTP clock support registered
>> EDAC MC: Ver: 3.0.0
>> FPGA manager framework
>> Advanced Linux Sound Architecture Driver Initialized.
>> vgaarb: loaded
>> clocksource: Switched to clocksource arch_sys_counter
>> VFS: Disk quotas dquot_6.6.0
>> VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
>> NET: Registered PF_INET protocol family
>> IP idents hash table entries: 32768 (order: 6, 262144 bytes, linear)
>> tcp_listen_portaddr_hash hash table entries: 1024 (order: 2, 16384 bytes, linear)
>> TCP established hash table entries: 16384 (order: 5, 131072 bytes, linear)
>> TCP bind hash table entries: 16384 (order: 6, 262144 bytes, linear)
>> TCP: Hash tables configured (established 16384 bind 16384)
>> UDP hash table entries: 1024 (order: 3, 32768 bytes, linear)
>> UDP-Lite hash table entries: 1024 (order: 3, 32768 bytes, linear)
>> NET: Registered PF_UNIX/PF_LOCAL protocol family
>> PCI: CLS 0 bytes, default 64
>> armv8-pmu ff634680.arm_pmu: hw perfevents: no interrupt-affinity property, guessing.
>> hw perfevents: enabled with armv8_pmuv3 PMU driver, 7 counters available
>> kvm [1]: IPA Size Limit: 40 bits
>> kvm [1]: vgic interrupt IRQ9
>> kvm [1]: VHE mode initialized successfully
>> Initialise system trusted keyrings
>> workingset: timestamp_bits=42 max_order=19 bucket_order=0
>> squashfs: version 4.0 (2009/01/31) Phillip Lougher
>> Key type asymmetric registered
>> Asymmetric key parser 'x509' registered
>> Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246)
>> io scheduler mq-deadline registered
>> io scheduler kyber registered
>> irq_meson_gpio: 87 to 12 gpio interrupt mux initialized
>> soc soc0: Amlogic Meson SC2 (S905X4) Revision 32:b (2:1) Detected
>> Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
>> fe07a000.serial: ttyAML0 at MMIO 0xfe07a000 (irq = 18, base_baud = 1500000) is a meson_uart
>> printk: console [ttyAML0] enabled
>> fe080000.serial: ttyAML1 at MMIO 0xfe080000 (irq = 19, base_baud = 1500000) is a meson_uart
>> cacheinfo: Unable to detect cache hierarchy for CPU 0
>> loop: module loaded
>> tun: Universal TUN/TAP device driver, 1.6
>> VFIO - User Level meta-driver version: 0.3
>> usbcore: registered new interface driver usb-storage
>> i2c_dev: i2c /dev entries driver
>> sdhci: Secure Digital Host Controller Interface driver
>> sdhci: Copyright(c) Pierre Ossman
>> Synopsys Designware Multimedia Card Interface Driver
>> sdhci-pltfm: SDHCI platform and OF driver helper
>> meson-gx-mmc fe08a000.sd: Got CD GPIO
>> meson-gx-mmc fe08c000.mmc: allocated mmc-pwrseq
>> ledtrig-cpu: registered to indicate activity on CPUs
>> hid: raw HID events driver (C) Jiri Kosina
>> usbcore: registered new interface driver usbhid
>> usbhid: USB HID core driver
>> NET: Registered PF_PACKET protocol family
>> Key type dns_resolver registered
>> Loading compiled-in X.509 certificates
>> cpufreq: cpufreq_online: CPU0: Running at unlisted initial frequency: 1512000 KHz, changing to: 1608000 KHz
>> cpu cpu0: EM: created perf domain
>> ALSA device list:
>> meson-gx-mmc fe088000.sdio: allocated mmc-pwrseq
>>    No soundcards found.
>> Waiting for root device /dev/mmcblk0p3...
>> mmc0: new HS200 MMC card at address 0001
>> mmcblk0: mmc0:0001 DA6016 14.7 GiB
>>   mmcblk0: p1 p2 p3
>> mmcblk0boot0: mmc0:0001 DA6016 4.00 MiB
>> mmcblk0boot1: mmc0:0001 DA6016 4.00 MiB
>> mmcblk0rpmb: mmc0:0001 DA6016 4.00 MiB, chardev (241:0)
>> EXT4-fs (mmcblk0p3): mounted filesystem with ordered data mode. Quota mode: none.
>> VFS: Mounted root (ext4 filesystem) on device 179:3.
>> devtmpfs: mounted
>> Freeing unused kernel memory: 2816K
>> Run /sbin/init as init process
>>    with arguments:
>>      /sbin/init
>>    with environment:
>>      HOME=/
>>      TERM=linux
>>      earlyprintk=serial,ttyAML0,921600
>> random: fast init done
>> mmc2: new ultra high speed DDR50 SDIO card at address 0001
>> systemd[1]: System time before build time, advancing clock.
>> NET: Registered PF_INET6 protocol family
>> Segment Routing with IPv6
>> In-situ OAM (IOAM) with IPv6
>> systemd[1]: systemd 250.4-2-arch running in system mode (+PAM +AUDIT -SELINUX -APPARMOR -IMA +SMACK +SECCOMP +GCRYPT +GNUTLS +OPENSSL +ACL +BLKID +CURL +ELFUTILS +FIDO2 +IDN2 -IDN +IPTC +KMOD +LIBCRYPTSETUP +LIBFDISK +PCRE2 -PWQUALITY +P11KIT -QRENCODE +BZIP2 +LZ4 +XZ +ZLIB +ZSTD -BPF_FRAMEWORK +XKBCOMMON +UTMP -SYSVINIT default-hierarchy=unified)
>> systemd[1]: Detected architecture arm64.
>> systemd[1]: Hostname set to <hk1>.
>> systemd[1]: Queued start job for default target Graphical Interface.
>> random: crng init done
>> systemd[1]: Created slice Slice /system/getty.
>> systemd[1]: Created slice Slice /system/modprobe.
>> systemd[1]: Created slice Slice /system/serial-getty.
>> systemd[1]: Created slice User and Session Slice.
>> systemd[1]: Started Dispatch Password Requests to Console Directory Watch.
>> systemd[1]: Started Forward Password Requests to Wall Directory Watch.
>> systemd[1]: Arbitrary Executable File Formats File System Automount Point was skipped because of a failed condition check (ConditionPathExists=/proc/sys/fs/binfmt_misc).
>> systemd[1]: Reached target Local Encrypted Volumes.
>> systemd[1]: Reached target Local Integrity Protected Volumes.
>> systemd[1]: Reached target Path Units.
>> systemd[1]: Reached target Remote File Systems.
>> systemd[1]: Reached target Slice Units.
>> systemd[1]: Reached target Swaps.
>> systemd[1]: Reached target Local Verity Protected Volumes.
>> systemd[1]: Listening on Device-mapper event daemon FIFOs.
>> systemd[1]: Listening on Process Core Dump Socket.
>> systemd[1]: Journal Audit Socket was skipped because of a failed condition check (ConditionSecurity=audit).
>> systemd[1]: Listening on Journal Socket (/dev/log).
>> systemd[1]: Listening on Journal Socket.
>> systemd[1]: Listening on Network Service Netlink Socket.
>> systemd[1]: Listening on udev Control Socket.
>> systemd[1]: Listening on udev Kernel Socket.
>> systemd[1]: Mounting Huge Pages File System...
>> systemd[1]: Mounting POSIX Message Queue File System...
>> systemd[1]: Mounting Kernel Debug File System...
>> systemd[1]: Kernel Trace File System was skipped because of a failed condition check (ConditionPathExists=/sys/kernel/tracing).
>> systemd[1]: Mounting Temporary Directory /tmp...
>> systemd[1]: Starting Create List of Static Device Nodes...
>> systemd[1]: Starting Load Kernel Module configfs...
>> systemd[1]: Starting Load Kernel Module drm...
>> systemd[1]: Starting Load Kernel Module fuse...
>> fuse: init (API version 7.36)
>> systemd[1]: Starting Load Kernel Modules...
>> systemd[1]: Starting Generate network units from Kernel command line...
>> systemd[1]: Starting Remount Root and Kernel File Systems...
>> systemd[1]: Repartition Root Disk was skipped because all trigger condition checks failed.
>> systemd[1]: Starting Coldplug All udev Devices...
>> systemd[1]: Mounted Huge Pages File System.
>> systemd[1]: Mounted POSIX Message Queue File System.
>> systemd[1]: Mounted Kernel Debug File System.
>> systemd[1]: Mounted Temporary Directory /tmp.
>> systemd[1]: Finished Create List of Static Device Nodes.
>> systemd[1]: modprobe at configfs.service: Deactivated successfully.
>> systemd[1]: Finished Load Kernel Module configfs.
>> systemd[1]: modprobe at drm.service: Deactivated successfully.
>> systemd[1]: Finished Load Kernel Module drm.
>> systemd[1]: modprobe at fuse.service: Deactivated successfully.
>> systemd[1]: Finished Load Kernel Module fuse.
>> systemd[1]: Finished Load Kernel Modules.
>> systemd[1]: Finished Generate network units from Kernel command line.
>> systemd[1]: Finished Remount Root and Kernel File Systems.
>> systemd[1]: Reached target Preparation for Network.
>> systemd[1]: Mounting FUSE Control File System...
>> systemd[1]: Mounting Kernel Configuration File System...
>> systemd[1]: First Boot Wizard was skipped because of a failed condition check (ConditionFirstBoot=yes).
>> systemd[1]: Rebuild Hardware Database was skipped because of a failed condition check (ConditionNeedsUpdate=/etc).
>> systemd[1]: Starting Load/Save Random Seed...
>> systemd[1]: Starting Apply Kernel Variables...
>> systemd[1]: Create System Users was skipped because of a failed condition check (ConditionNeedsUpdate=/etc).
>> systemd[1]: Starting Create Static Device Nodes in /dev...
>> systemd[1]: Mounted FUSE Control File System.
>> systemd[1]: Mounted Kernel Configuration File System.
>> systemd[1]: Finished Coldplug All udev Devices.
>> systemd[1]: Finished Load/Save Random Seed.
>> systemd[1]: Finished Apply Kernel Variables.
>> systemd[1]: First Boot Complete was skipped because of a failed condition check (ConditionFirstBoot=yes).
>> systemd[1]: Finished Create Static Device Nodes in /dev.
>> systemd[1]: Reached target Preparation for Local File Systems.
>> systemd[1]: Virtual Machine and Container Storage (Compatibility) was skipped because of a failed condition check (ConditionPathExists=/var/lib/machines.raw).
>> systemd[1]: Reached target Local File Systems.
>> systemd[1]: Entropy Daemon based on the HAVEGE algorithm was skipped because of a failed condition check (ConditionKernelVersion=<5.6).
>> systemd[1]: Rebuild Dynamic Linker Cache was skipped because all trigger condition checks failed.
>> systemd[1]: Set Up Additional Binary Formats was skipped because all trigger condition checks failed.
>> systemd[1]: Store a System Token in an EFI Variable was skipped because of a failed condition check (ConditionPathExists=/sys/firmware/efi/efivars/LoaderFeatures-4a67b082-0a4c-41cf-b6c7-440b29bb8c4f).
>> systemd[1]: Starting Journal Service...
>> systemd[1]: Commit a transient machine-id on disk was skipped because of a failed condition check (ConditionPathIsMountPoint=/etc/machine-id).
>> systemd[1]: Starting Rule-based Manager for Device Events and Files...
>> systemd[1]: Started Journal Service.
>> systemd-journald[158]: Received client request to flush runtime journal.
>> systemd-journald[158]: File /var/log/journal/75805e3fad104d7bae8d530fa8c20fbe/system.journal corrupted or uncleanly shut down, renaming and replacing.
>> cfg80211: Loading compiled-in X.509 certificates for regulatory database
>> cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
>> meson-vrtc fe010288.rtc: registered as rtc0
>> meson-vrtc fe010288.rtc: setting system clock to 1970-01-01T00:00:04 UTC (4)
>> meson-saradc fe026000.saradc: supply vref not found, using dummy regulator
>> i2c i2c-5: I2C-like interface, SDA and SCL are write-only
>> i2c-gpio i2c-led: using lines 425 (SDA) and 426 (SCL, no clock stretching)
>> meson-drm ff000000.vpu: Queued 2 outputs on vpu
>> dwc3-meson-g12a fe03a000.usb: USB2 ports: 2
>> dwc3-meson-g12a fe03a000.usb: USB3 ports: 1
>> panfrost fe400000.gpu: clock rate = 24000000
>> panfrost fe400000.gpu: [drm:panfrost_devfreq_init [panfrost]] Failed to register cooling device
>> panfrost fe400000.gpu: mali-g31 id 0x7093 major 0x0 minor 0x0 status 0x0
>> panfrost fe400000.gpu: features: 00000000,000017f7, issues: 00000000,00000400
>> panfrost fe400000.gpu: Features: L2:0x07100206 Shader:0x00000000 Tiler:0x00000209 Mem:0x1 MMU:0x00002821 AS:0xff JS:0x7
>> panfrost fe400000.gpu: shader_present=0x1 l2_present=0x1
>> [drm] Initialized panfrost 1.2.0 20180908 for fe400000.gpu on minor 0
>> brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac4334-sdio for chip BCM4334/3
>> brcmfmac mmc2:0001:1: Direct firmware load for brcm/brcmfmac4334-sdio.amlogic,sc2.bin failed with error -2
>> brcmfmac mmc2:0001:1: Direct firmware load for brcm/brcmfmac4334-sdio.amlogic,sc2.txt failed with error -2
>> meson8b-dwmac fdc00000.ethernet: IRQ eth_wake_irq not found
>> meson8b-dwmac fdc00000.ethernet: IRQ eth_lpi not found
>> meson8b-dwmac fdc00000.ethernet: PTP uses main clock
>> meson8b-dwmac fdc00000.ethernet: User ID: 0x11, Synopsys ID: 0x37
>> meson8b-dwmac fdc00000.ethernet:     DWMAC1000
>> meson8b-dwmac fdc00000.ethernet: DMA HW capability register supported
>> meson8b-dwmac fdc00000.ethernet: RX Checksum Offload Engine supported
>> meson8b-dwmac fdc00000.ethernet: COE Type 2
>> meson8b-dwmac fdc00000.ethernet: TX Checksum insertion supported
>> meson8b-dwmac fdc00000.ethernet: Wake-Up On Lan supported
>> meson8b-dwmac fdc00000.ethernet: Normal descriptors
>> meson8b-dwmac fdc00000.ethernet: Ring mode enabled
>> meson8b-dwmac fdc00000.ethernet: Enable RX Mitigation via HW Watchdog Timer
>> meson8b-dwmac fdc00000.ethernet: device MAC address 02:ad:32:01:bd:b0
>> brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac4334-sdio for chip BCM4334/3
>> brcmfmac: brcmf_c_process_clm_blob: no clm_blob available (err=-2), device may have limited channels available
>> brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4334/3 wl0: Jun 26 2012 11:32:33 version 6.10 (TOB) (r335311)
>> dwc2 fdd00000.usb: supply vusb_d not found, using dummy regulator
>> dwc2 fdd00000.usb: supply vusb_a not found, using dummy regulator
>> dwc2 fdd00000.usb: EPs: 7, dedicated fifos, 968 entries in SPRAM
>> fd6551 5-0024: Set up FD6551 LED controller with 4 digits and 7 symbols.
>> xhci-hcd xhci-hcd.1.auto: xHCI Host Controller
>> xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 1
>> xhci-hcd xhci-hcd.1.auto: hcc params 0x0228fe6c hci version 0x110 quirks 0x0000000000010010
>> xhci-hcd xhci-hcd.1.auto: irq 31, io mem 0xfde00000
>> hub 1-0:1.0: USB hub found
>> hub 1-0:1.0: 2 ports detected
>> xhci-hcd xhci-hcd.1.auto: xHCI Host Controller
>> xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 2
>> xhci-hcd xhci-hcd.1.auto: Host supports USB 3.0 SuperSpeed
>> usb usb2: We don't know the algorithms for LPM for this host, disabling LPM.
>> hub 2-0:1.0: USB hub found
>> hub 2-0:1.0: 1 port detected
>> meson8b-dwmac fdc00000.ethernet eth0: PHY [mdio_mux-0.1:08] driver [Meson G12A Internal PHY] (irq=30)
>> systemd-journald[158]: Oldest entry in /var/log/journal/75805e3fad104d7bae8d530fa8c20fbe/system.journal is older than the configured file retention duration (1month), suggesting rotation.
>> systemd-journald[158]: /var/log/journal/75805e3fad104d7bae8d530fa8c20fbe/system.journal: Journal header limits reached or header out-of-date, rotating.
>> meson8b-dwmac fdc00000.ethernet eth0: Register MEM_TYPE_PAGE_POOL RxQ-0
>> meson8b-dwmac fdc00000.ethernet eth0: No Safety Features support found
>> meson8b-dwmac fdc00000.ethernet eth0: PTP not supported by HW
>> meson8b-dwmac fdc00000.ethernet eth0: configuring for phy/rmii link mode
>> meson8b-dwmac fdc00000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
>> IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
>> meson-dw-hdmi fe300000.hdmi-tx: Detected HDMI TX controller v2.01a with HDCP (meson_dw_hdmi_phy)
>> meson-dw-hdmi fe300000.hdmi-tx: registered DesignWare HDMI I2C bus driver
>> meson-drm ff000000.vpu: bound fe300000.hdmi-tx (ops meson_dw_hdmi_ops [meson_dw_hdmi])
>> [drm] Initialized meson 1.0.0 20161109 for ff000000.vpu on minor 1
>> Console: switching to colour frame buffer device 240x67
>> meson-drm ff000000.vpu: [drm] fb0: mesondrmfb frame buffer device
> 