kernel errors for on-board ethernet

[beepy]

Hello again,

I have the Quartz64-B v1.3

dmesg is reporting a raft of re-occuring errors with the built-in ethernet / NIC.

-These are all happening with: latest plebian, diet-pi, arch arm

[ 2777.053671] rk_gmac-dwmac fe010000.ethernet: Failed to reset the dma
[ 2777.054322] rk_gmac-dwmac fe010000.ethernet end0: stmmac_hw_setup: DMA engine initialization failed
[ 2777.055169] rk_gmac-dwmac fe010000.ethernet end0: __stmmac_open: Hw setup failed
[ 2777.090016] rk_gmac-dwmac fe010000.ethernet end0: Register MEM_TYPE_PAGE_POOL RxQ-0
[ 2777.185378] rk_gmac-dwmac fe010000.ethernet end0: PHY [stmmac-0:01] driver [RTL8211F Gigabit Ethernet] (irq=POLL)


as a result I cannot bring the NIC online. (tried ip link set end0 down/up and raises these dmesg output)

(fyi: if its useful, I can use an usb eth dongle and kernel recognizes it and I connect via that okay - usless it is usb3.0 port and another set of warning are raised ...for another port maybe)

I have tried using the PoE adapter I have for it and "normal" eth with DC power, and the same issue.

Any help much appreciated.
Thank you

[beepy]

More details on the issue of no ethernet.
(the wifi chip is receiving a signal btw, I can pickup access points)

U-Boot 2023.04-rc1-gbe645fef (Apr 29 2023 - 23:33:09 +0000)

Model: Pine64 RK3566 Quartz64-B Board
DRAM: 4 GiB (effective 3.7 GiB)
Core: 286 devices, 20 uclasses, devicetree: separate
MMC: rockchip_sdhci_probe clk set rate fail!
mmc@fe2b0000: 1, mmc@fe2c0000: 2, mmc@fe310000: 0
Loading Environment from nowhere... OK
In: serial@fe660000
Out: serial@fe660000
Err: serial@fe660000
Model: Pine64 RK3566 Quartz64-B Board
can't get vref-supply: -2
rockchip_dnl_key_pressed: adc_channel_single_shot fail!
Net: No ethernet found. <---------------------------------------------------------------here.

upon boot...
...
[ 5.756214] rk_gmac-dwmac fe010000.ethernet: IRQ eth_lpi not found
[ 5.756518] dwmmc_rockchip fe2b0000.mmc: IDMAC supports 32-bit address mode.
[ 5.757387] rk_gmac-dwmac fe010000.ethernet: clock input or output? (input).
[ 5.757497] dwmmc_rockchip fe2b0000.mmc: Using internal DMA controller.
[ 5.758034] rk_gmac-dwmac fe010000.ethernet: TX delay(0x4f).
[ 5.758619] dwmmc_rockchip fe2b0000.mmc: Version ID is 270a
[ 5.759112] rk_gmac-dwmac fe010000.ethernet: RX delay(0x24).
[ 5.759645] dwmmc_rockchip fe2b0000.mmc: DW MMC controller at irq 64,32 bit host data width,256 deep fifo
[ 5.760108] rk_gmac-dwmac fe010000.ethernet: integrated PHY? (no).
[ 5.761671] rk_gmac-dwmac fe010000.ethernet: clock input from PHY
[ 5.763243] dwmmc_rockchip fe2b0000.mmc: Got CD GPIO
[ 5.767275] rk_gmac-dwmac fe010000.ethernet: init for RGMII
[ 5.769558] rk_gmac-dwmac fe010000.ethernet: User ID: 0x30, Synopsys ID: 0x51
[ 5.770250] rk_gmac-dwmac fe010000.ethernet: DWMAC4/5
[ 5.770727] rk_gmac-dwmac fe010000.ethernet: DMA HW capability register supported
[ 5.771402] rk_gmac-dwmac fe010000.ethernet: RX Checksum Offload Engine supported
[ 5.772075] rk_gmac-dwmac fe010000.ethernet: TX Checksum insertion supported
[ 5.772705] rk_gmac-dwmac fe010000.ethernet: Wake-Up On Lan supported
[ 5.773484] rk_gmac-dwmac fe010000.ethernet: TSO supported
[ 5.773999] rk_gmac-dwmac fe010000.ethernet: Enable RX Mitigation via HW Watchdog Timer
[ 5.774736] rk_gmac-dwmac fe010000.ethernet: device MAC address 2a:8b:6f:6a:01:08
[ 5.775425] rk_gmac-dwmac fe010000.ethernet: Enabled RFS Flow TC (entries=10)
[ 5.776073] rk_gmac-dwmac fe010000.ethernet: TSO feature enabled
[ 5.776616] rk_gmac-dwmac fe010000.ethernet: Using 32/32 bits DMA host/device width

So could this be related to a kernel setting: CONFIG_REALTEK_PHY maybe??

Kind regards