Is it configured for the appropriate mediatek devices?
Not sure what do you mean by āconfiguredā. I used latest version of unstable channel that contains the latest kernel and I can see dtb files for mediatek devices in the nixos image:
āÆ ls mediatek
mt2712-evb.dtb mt8173-elm-hana.dtb mt8183-kukui-kakadu.dtb
mt6755-evb.dtb mt8173-elm.dtb mt8183-kukui-kodama-sku16.dtb
mt6779-evb.dtb mt8173-evb.dtb mt8183-kukui-kodama-sku32.dtb
mt6795-evb.dtb mt8183-evb.dtb mt8183-kukui-kodama-sku272.dtb
mt6795-sony-xperia-m5.dtb mt8183-kukui-jacuzzi-burnet.dtb mt8183-kukui-kodama-sku288.dtb
mt6797-evb.dtb mt8183-kukui-jacuzzi-cozmo.dtb mt8183-kukui-krane-sku0.dtb
mt6797-x20-dev.dtb mt8183-kukui-jacuzzi-damu.dtb mt8183-kukui-krane-sku176.dtb
mt7622-bananapi-bpi-r64.dtb mt8183-kukui-jacuzzi-fennel-sku1.dtb mt8183-pumpkin.dtb
mt7622-rfb1.dtb mt8183-kukui-jacuzzi-fennel-sku6.dtb mt8186-evb.dtb
mt7986a-bananapi-bpi-r3-emmc.dtbo mt8183-kukui-jacuzzi-fennel-sku7.dtb mt8192-asurada-hayato-r1.dtb
mt7986a-bananapi-bpi-r3-nand.dtbo mt8183-kukui-jacuzzi-fennel14-sku2.dtb mt8192-asurada-spherion-r0.dtb
mt7986a-bananapi-bpi-r3-nor.dtbo mt8183-kukui-jacuzzi-fennel14.dtb mt8192-evb.dtb
mt7986a-bananapi-bpi-r3-sd.dtbo mt8183-kukui-jacuzzi-juniper-sku16.dtb mt8195-cherry-tomato-r1.dtb
mt7986a-bananapi-bpi-r3.dtb mt8183-kukui-jacuzzi-kappa.dtb mt8195-cherry-tomato-r2.dtb
mt7986a-rfb.dtb mt8183-kukui-jacuzzi-kenzo.dtb mt8195-cherry-tomato-r3.dtb
mt7986b-rfb.dtb mt8183-kukui-jacuzzi-willow-sku0.dtb mt8195-demo.dtb
mt8167-pumpkin.dtb mt8183-kukui-jacuzzi-willow-sku1.dtb mt8195-evb.dtb
mt8173-elm-hana-rev7.dtb mt8183-kukui-kakadu-sku22.dtb mt8516-pumpkin.dtb
i found out that I cannot use the standard archlinuxarm linux kernel, because many mtk config options are not enabled. Mediatek boards are not included. It is why I need to use my own linux package.
Ah that might be it. What do you mean not enabled? How can I enable it? Also what do you mean āmediatek boards are not includedā?
It doesnāt apply any patching to code, only some changes to devicetree. Then I added Dynamic overlay support, which is an addition to the code. I use Dynamic overlay to access Emmc at hs200 when booting from sdmmc
You mean that even though mediatek devices are in the devicetree, there are no patches applied to kernel? Sorry, I am not sure if I understand.
Anyway, I decided to try out the dtb file that you sent earlier. I modified the extlinux.conf and changed
FDTDIR ../nixos/wbv7qr9q5bqlr4dn5srjqmhxppp2sxgn-linux-6.3.1-dtbs
to
FDT ../dtbs/mt7986a-bananapi-bpi-r3-atf.dtb
And it worked (sort of):
Starting kernel ...
[ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]
[ 0.000000] Linux version 6.3.1 (nixbld@localhost) (gcc (GCC) 12.2.0, GNU ld (GNU Binutils) 2.40) #1-NixOS SMP Sun Apr 30 23
[ 0.000000] Machine model: Bananapi BPI-R3
[ 0.000000] efi: UEFI not found.
[ 0.000000] OF: reserved mem: 0x0000000015194000..0x0000000015194fff (4 KiB) nomap non-reusable wo-boot@15194000
[ 0.000000] OF: reserved mem: 0x00000000151e0000..0x00000000151e7fff (32 KiB) nomap non-reusable wo-ilm@151e0000
[ 0.000000] OF: reserved mem: 0x00000000151e8000..0x00000000151e9fff (8 KiB) nomap non-reusable wo-dlm@151e8000
[ 0.000000] OF: reserved mem: 0x00000000151f0000..0x00000000151f7fff (32 KiB) nomap non-reusable wo-ilm@151f0000
[ 0.000000] OF: reserved mem: 0x00000000151f8000..0x00000000151f9fff (8 KiB) nomap non-reusable wo-dlm@151f8000
[ 0.000000] OF: reserved mem: 0x0000000043000000..0x000000004302ffff (192 KiB) nomap non-reusable secmon@43000000
[ 0.000000] OF: reserved mem: 0x000000004fc00000..0x000000004fcfffff (1024 KiB) nomap non-reusable wmcpu-reserved@4fc00000
[ 0.000000] OF: reserved mem: 0x000000004fd00000..0x000000004fd3ffff (256 KiB) nomap non-reusable wo-emi@4fd00000
[ 0.000000] OF: reserved mem: 0x000000004fd40000..0x000000004fd7ffff (256 KiB) nomap non-reusable wo-emi@4fd40000
[ 0.000000] OF: reserved mem: 0x000000004fd80000..0x000000004ffbffff (2304 KiB) nomap non-reusable wo-data@4fd80000
[ 0.000000] NUMA: No NUMA configuration found
[ 0.000000] NUMA: Faking a node at [mem 0x0000000040000000-0x00000000bfffffff]
[ 0.000000] NUMA: NODE_DATA [mem 0xbfbe88c0-0xbfbebfff]
[ 0.000000] Zone ranges:
[ 0.000000] DMA [mem 0x0000000040000000-0x00000000bfffffff]
[ 0.000000] DMA32 empty
[ 0.000000] Normal empty
[ 0.000000] Device empty
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000040000000-0x0000000042ffffff]
[ 0.000000] node 0: [mem 0x0000000043000000-0x000000004302ffff]
[ 0.000000] node 0: [mem 0x0000000043030000-0x000000004fbfffff]
[ 0.000000] node 0: [mem 0x000000004fc00000-0x000000004ffbffff]
[ 0.000000] node 0: [mem 0x000000004ffc0000-0x00000000bfffffff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000040000000-0x00000000bfffffff]
[ 0.000000] cma: Reserved 32 MiB at 0x00000000bac00000
[ 0.000000] psci: probing for conduit method from DT.
[ 0.000000] psci: PSCIv1.1 detected in firmware.
[ 0.000000] psci: Using standard PSCI v0.2 function IDs
[ 0.000000] psci: MIGRATE_INFO_TYPE not supported.
[ 0.000000] psci: SMC Calling Convention v1.2
[ 0.000000] percpu: Embedded 31 pages/cpu s89320 r8192 d29464 u126976
[ 0.000000] Detected VIPT I-cache on CPU0
[ 0.000000] CPU features: detected: GIC system register CPU interface
[ 0.000000] CPU features: detected: ARM erratum 845719
[ 0.000000] alternatives: applying boot alternatives
[ 0.000000] Fallback order for Node 0: 0
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 516096
[ 0.000000] Policy zone: DMA
[ 0.000000] Kernel command line: init=/nix/store/9ifmb0qa9jm6bl95walaf0gn1w7nsfn7-nixos-system-nixos-23.05pre483514.790a2088
[ 0.000000] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, linear)
[ 0.000000] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, linear)
[ 0.000000] mem auto-init: stack:all(zero), heap alloc:off, heap free:off
[ 0.000000] Memory: 1947424K/2097152K available (21376K kernel code, 5812K rwdata, 19504K rodata, 12736K init, 740K bss, 11)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[ 0.000000] ftrace: allocating 67185 entries in 263 pages
[ 0.000000] ftrace: allocated 263 pages with 4 groups
[ 0.000000] trace event string verifier disabled
[ 0.000000] rcu: Hierarchical RCU implementation.
[ 0.000000] rcu: RCU event tracing is enabled.
[ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=384 to nr_cpu_ids=4.
[ 0.000000] Rude variant of Tasks RCU enabled.
[ 0.000000] Tracing variant of Tasks RCU enabled.
[ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 25 jiffies.
[ 0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=4
[ 0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
[ 0.000000] GICv3: GIC: Using split EOI/Deactivate mode
[ 0.000000] GICv3: 640 SPIs implemented
[ 0.000000] GICv3: 0 Extended SPIs implemented
[ 0.000000] Root IRQ handler: gic_handle_irq
[ 0.000000] GICv3: GICv3 features: 16 PPIs
[ 0.000000] GICv3: CPU0: found redistributor 0 region 0:0x000000000c080000
[ 0.000000] rcu: srcu_init: Setting srcu_struct sizes based on contention.
[ 0.000000] arch_timer: cp15 timer(s) running at 13.00MHz (phys).
[ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x2ff89eacb, max_idle_ns: 440795202429 ns
[ 0.000000] sched_clock: 56 bits at 13MHz, resolution 76ns, wraps every 4398046511101ns
[ 0.000454] Console: colour dummy device 80x25
[ 0.000461] printk: console [tty0] enabled
[ 0.000808] Calibrating delay loop (skipped), value calculated using timer frequency.. 26.00 BogoMIPS (lpj=52000)
[ 0.000822] pid_max: default: 32768 minimum: 301
[ 0.000997] LSM: initializing lsm=capability,landlock,yama,integrity,bpf
[ 0.001047] landlock: Up and running.
[ 0.001053] Yama: becoming mindful.
[ 0.001092] LSM support for eBPF active
[ 0.001215] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, linear)
[ 0.001233] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, linear)
[ 0.002671] cblist_init_generic: Setting adjustable number of callback queues.
[ 0.002696] cblist_init_generic: Setting shift to 2 and lim to 1.
[ 0.002753] cblist_init_generic: Setting shift to 2 and lim to 1.
[ 0.002902] rcu: Hierarchical SRCU implementation.
[ 0.002909] rcu: Max phase no-delay instances is 1000.
[ 0.004863] EFI services will not be available.
[ 0.005189] smp: Bringing up secondary CPUs ...
[ 0.005614] Detected VIPT I-cache on CPU1
[ 0.005658] GICv3: CPU1: found redistributor 1 region 0:0x000000000c0a0000
[ 0.005693] CPU1: Booted secondary processor 0x0000000001 [0x410fd034]
[ 0.006130] Detected VIPT I-cache on CPU2
[ 0.006159] GICv3: CPU2: found redistributor 2 region 0:0x000000000c0c0000
[ 0.006175] CPU2: Booted secondary processor 0x0000000002 [0x410fd034]
[ 0.006554] Detected VIPT I-cache on CPU3
[ 0.006578] GICv3: CPU3: found redistributor 3 region 0:0x000000000c0e0000
[ 0.006591] CPU3: Booted secondary processor 0x0000000003 [0x410fd034]
[ 0.006636] smp: Brought up 1 node, 4 CPUs
[ 0.006682] SMP: Total of 4 processors activated.
[ 0.006689] CPU features: detected: 32-bit EL0 Support
[ 0.006694] CPU features: detected: 32-bit EL1 Support
[ 0.006700] CPU features: detected: CRC32 instructions
[ 0.006751] CPU: All CPU(s) started at EL2
[ 0.006769] alternatives: applying system-wide alternatives
[ 0.008707] devtmpfs: initialized
[ 0.012373] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[ 0.012411] futex hash table entries: 1024 (order: 4, 65536 bytes, linear)
[ 0.013292] pinctrl core: initialized pinctrl subsystem
[ 0.014426] DMI not present or invalid.
[ 0.014993] NET: Registered PF_NETLINK/PF_ROUTE protocol family
[ 0.015907] DMA: preallocated 256 KiB GFP_KERNEL pool for atomic allocations
[ 0.015995] DMA: preallocated 256 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations
[ 0.016137] DMA: preallocated 256 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations
[ 0.016217] audit: initializing netlink subsys (disabled)
[ 0.016345] audit: type=2000 audit(0.016:1): state=initialized audit_enabled=0 res=1
[ 0.017189] thermal_sys: Registered thermal governor 'step_wise'
[ 0.017194] thermal_sys: Registered thermal governor 'power_allocator'
[ 0.017261] cpuidle: using governor ladder
[ 0.017284] cpuidle: using governor menu
[ 0.017518] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers.
[ 0.017598] ASID allocator initialised with 65536 entries
[ 0.018864] Serial: AMBA PL011 UART driver
[ 0.030299] KASLR disabled due to lack of seed
[ 0.054645] HugeTLB: registered 1.00 GiB page size, pre-allocated 0 pages
[ 0.054673] HugeTLB: 0 KiB vmemmap can be freed for a 1.00 GiB page
[ 0.054680] HugeTLB: registered 32.0 MiB page size, pre-allocated 0 pages
[ 0.054686] HugeTLB: 0 KiB vmemmap can be freed for a 32.0 MiB page
[ 0.054693] HugeTLB: registered 2.00 MiB page size, pre-allocated 0 pages
[ 0.054699] HugeTLB: 0 KiB vmemmap can be freed for a 2.00 MiB page
[ 0.054705] HugeTLB: registered 64.0 KiB page size, pre-allocated 0 pages
[ 0.054711] HugeTLB: 0 KiB vmemmap can be freed for a 64.0 KiB page
[ 0.498535] fbcon: Taking over console
[ 0.498586] ACPI: Interpreter disabled.
[ 0.500397] iommu: Default domain type: Translated
[ 0.500420] iommu: DMA domain TLB invalidation policy: strict mode
[ 0.500726] SCSI subsystem initialized
[ 0.501017] usbcore: registered new interface driver usbfs
[ 0.501039] usbcore: registered new interface driver hub
[ 0.501062] usbcore: registered new device driver usb
[ 0.501571] pps_core: LinuxPPS API ver. 1 registered
[ 0.501578] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <[email protected]>
[ 0.501600] PTP clock support registered
[ 0.501678] EDAC MC: Ver: 3.0.0
[ 0.502082] scmi_core: SCMI protocol bus registered
[ 0.502519] FPGA manager framework
[ 0.502613] Advanced Linux Sound Architecture Driver Initialized.
[ 0.503384] vgaarb: loaded
[ 0.512627] clocksource: Switched to clocksource arch_sys_counter
[ 0.512975] VFS: Disk quotas dquot_6.6.0
[ 0.513027] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[ 0.513231] pnp: PnP ACPI: disabled
[ 0.517978] NET: Registered PF_INET protocol family
[ 0.518195] IP idents hash table entries: 32768 (order: 6, 262144 bytes, linear)
[ 0.519845] tcp_listen_portaddr_hash hash table entries: 1024 (order: 2, 16384 bytes, linear)
[ 0.519902] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear)
[ 0.519917] TCP established hash table entries: 16384 (order: 5, 131072 bytes, linear)
[ 0.519993] TCP bind hash table entries: 16384 (order: 7, 524288 bytes, linear)
[ 0.520378] TCP: Hash tables configured (established 16384 bind 16384)
[ 0.520725] MPTCP token hash table entries: 2048 (order: 3, 49152 bytes, linear)
[ 0.520835] UDP hash table entries: 1024 (order: 3, 32768 bytes, linear)
[ 0.520869] UDP-Lite hash table entries: 1024 (order: 3, 32768 bytes, linear)
[ 0.521025] NET: Registered PF_UNIX/PF_LOCAL protocol family
[ 0.521509] RPC: Registered named UNIX socket transport module.
[ 0.521526] RPC: Registered udp transport module.
[ 0.521532] RPC: Registered tcp transport module.
[ 0.521537] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.521551] NET: Registered PF_XDP protocol family
[ 0.521573] PCI: CLS 0 bytes, default 64
[ 0.521848] Trying to unpack rootfs image as initramfs...
[ 0.529333] kvm [1]: IPA Size Limit: 40 bits
[ 0.531837] kvm [1]: vgic-v2@c420000
[ 0.531884] kvm [1]: GIC system register CPU interface enabled
[ 0.531930] kvm [1]: vgic interrupt IRQ9
[ 0.531956] kvm [1]: Hyp mode initialized successfully
[ 0.533422] Initialise system trusted keyrings
[ 0.533795] workingset: timestamp_bits=42 max_order=19 bucket_order=0
[ 0.533886] zbud: loaded
[ 0.534595] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 0.535050] NFS: Registering the id_resolver key type
[ 0.535102] Key type id_resolver registered
[ 0.535109] Key type id_legacy registered
[ 0.535142] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[ 0.535151] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering...
[ 0.535330] 9p: Installing v9fs 9p2000 file system support
[ 0.557740] Key type asymmetric registered
[ 0.557818] Asymmetric key parser 'x509' registered
[ 0.557927] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 245)
[ 0.558193] io scheduler mq-deadline registered
[ 0.558211] io scheduler kyber registered
[ 0.566109] EINJ: ACPI disabled.
[ 0.582601] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 0.584995] printk: console [ttyS0] disabled
[ 0.605193] 11002000.serial: ttyS0 at MMIO 0x11002000 (irq = 116, base_baud = 2500000) is a ST16650V2
[ 0.605284] printk: console [ttyS0] enabled
[ 0.856144] Freeing initrd memory: 12016K
[ 0.882126] 11003000.serial: ttyS1 at MMIO 0x11003000 (irq = 117, base_baud = 1625000) is a ST16650V2
[ 1.783840] 11004000.serial: ttyS2 at MMIO 0x11004000 (irq = 118, base_baud = 1625000) is a ST16650V2
[ 1.793875] SuperH (H)SCI(F) driver initialized
[ 1.798721] msm_serial: driver initialized
[ 1.808158] loop: module loaded
[ 1.812099] megasas: 07.725.01.00-rc1
[ 1.820983] tun: Universal TUN/TAP device driver, 1.6
[ 1.826601] thunder_xcv, ver 1.0
[ 1.829862] thunder_bgx, ver 1.0
[ 1.833100] nicpf, ver 1.0
[ 1.836492] hns3: Hisilicon Ethernet Network Driver for Hip08 Family - version
[ 1.843707] hns3: Copyright (c) 2017 Huawei Corporation.
[ 1.849036] hclge is initializing
[ 1.852355] e1000: Intel(R) PRO/1000 Network Driver
[ 1.857223] e1000: Copyright (c) 1999-2006 Intel Corporation.
[ 1.862970] e1000e: Intel(R) PRO/1000 Network Driver
[ 1.867923] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
[ 1.873853] igb: Intel(R) Gigabit Ethernet Network Driver
[ 1.879240] igb: Copyright (c) 2007-2014 Intel Corporation.
[ 1.884817] igbvf: Intel(R) Gigabit Virtual Function Network Driver
[ 1.891072] igbvf: Copyright (c) 2009 - 2012 Intel Corporation.
[ 1.897205] sky2: driver version 1.30
[ 1.902853] usbcore: registered new interface driver usb-storage
[ 1.910364] i2c_dev: i2c /dev entries driver
[ 1.918240] mtk-wdt 1001c000.watchdog: Watchdog enabled (timeout=31 sec, nowayout=0)
[ 1.926401] ghes_edac: GHES probing device list is empty
[ 1.927665] sdhci: Secure Digital Host Controller Interface driver
[ 1.939176] sdhci: Copyright(c) Pierre Ossman
[ 1.944004] Synopsys Designware Multimedia Card Interface Driver
[ 1.950841] sdhci-pltfm: SDHCI platform and OF driver helper
[ 1.958178] ledtrig-cpu: registered to indicate activity on CPUs
[ 1.965472] SMCCC: SOC_ID: ID = jep106:0426:7986 Revision = 0x00000000
[ 1.972378] hid: raw HID events driver (C) Jiri Kosina
[ 1.977799] usbcore: registered new interface driver usbhid
[ 1.983364] usbhid: USB HID core driver
[ 1.991374] drop_monitor: Initializing network drop monitor service
[ 2.011035] mmc0: host does not support reading read-only switch, assuming write-enable
[ 2.024406] mmc0: new high speed SDXC card at address e624
[ 2.031185] mmcblk0: mmc0:e624 SE128 119 GiB
[ 2.045824] mmcblk0: p1 p2
[ 2.054396] NET: Registered PF_INET6 protocol family
[ 2.061363] Segment Routing with IPv6
[ 2.065102] In-situ OAM (IOAM) with IPv6
[ 2.069084] NET: Registered PF_PACKET protocol family
[ 2.074298] 9pnet: Installing 9P2000 support
[ 2.078629] Key type dns_resolver registered
[ 2.089447] registered taskstats version 1
[ 2.093841] Loading compiled-in X.509 certificates
[ 2.098846] zswap: loaded using pool lzo/zbud
[ 2.109093] Key type .fscrypt registered
[ 2.113038] Key type fscrypt-provisioning registered
[ 2.126598] xhci-mtk 11200000.usb: supply vbus not found, using dummy regulator
[ 2.134123] xhci-mtk 11200000.usb: supply vusb33 not found, using dummy regulator
[ 2.142515] xhci-mtk 11200000.usb: xHCI Host Controller
[ 2.147748] xhci-mtk 11200000.usb: new USB bus registered, assigned bus number 1
[ 2.158152] xhci-mtk 11200000.usb: hcc params 0x01403f99 hci version 0x110 quirks 0x0000000000210010
[ 2.167326] xhci-mtk 11200000.usb: irq 124, io mem 0x11200000
[ 2.173183] xhci-mtk 11200000.usb: xHCI Host Controller
[ 2.178404] xhci-mtk 11200000.usb: new USB bus registered, assigned bus number 2
[ 2.185792] xhci-mtk 11200000.usb: Host supports USB 3.2 Enhanced SuperSpeed
[ 2.193272] hub 1-0:1.0: USB hub found
[ 2.197040] hub 1-0:1.0: 2 ports detected
[ 2.201307] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM.
[ 2.209689] hub 2-0:1.0: USB hub found
[ 2.213453] hub 2-0:1.0: 1 port detected
[ 2.218234] input: gpio-keys as /devices/platform/gpio-keys/input/input0
[ 2.225776] ALSA device list:
[ 2.228763] No soundcards found.
[ 2.241244] Freeing unused kernel memory: 12736K
[ 2.264663] Run /init as init process
[ 2.388830] device-mapper: ioctl: 4.47.0-ioctl (2022-07-28) initialised: [email protected]
[ 2.612802] usb 1-1: new high-speed USB device number 2 using xhci-mtk
[ 2.765579] hub 1-1:1.0: USB hub found
[ 2.769531] hub 1-1:1.0: 4 ports detected
[ 9.464635] random: crng init done
[ 33.673466] /dev/disk/by-label/NIXOS_SD: Can't open blockdev
The error obviously stems from the fact that I am not using partition layout from the original nixos image but rather my modification using atf etc. But that seems to be mostly concern of nixos configuration.
However, I wonder why it worked after switching to that file ? Could you explain what kind of changes have you made there comparing to the original file?
edit:
Have not tested this u-boot for applying overlays, so use this .dtb for now (sdmmc and compatible with direct atf->kernel boot): mt7986a-bananapi-bpi-r3-atf.dtb (23.8 KB)
Maybe that was the reason 
wdyt?
