the_collector

I finally got around to playing with this again and spent a few hours. The upshot is the kernel in multitool can recognise the SD card perfectly fine, however the u-boot image does not. When I previously had the multitool booting with the USB workaround the kernel was running from the SD card, u-boot was being launched from the SD card but u-boot itself can not see the SD card, by having the USB stick in the OTG port u-boot can then read that and read extlinux.conf to proceed booting multitool from the SD card. Eventually after looking through the multitool source (thank you for linking!) I figured out if I flash the SD card with the generated legacy-uboot.img it all boots and works perfectly. If getting this running on mainline u-boot is something anyone cares about I'm happy to dig in and help out but hand-holding would be required unfortunately as embedded systems are a new thing for me at the moment.

@jock Thank you! That was enough of a clue to get this working (albeit an awful hack), while the loader on my SoC seems to not want to boot from a USB device I figured out that if a USB flash drive with the extlinux.conf is in the OTG port the boot process can proceed as expected. This workaround is fine, though I couldn't find the source for multitool to start debugging further. The box I have is marked externally as a MXR 4k bought from a seller on Amazon UK September 2016. The board however is marked 'MXQ-RK3229-D16', version '0.9A' on the silkscreen. With a whole bunch of missing optional(?) components. Top side Bottom side UART is on the group of three vias centre bottom: GND, TX, RX. (I also feel I have to point out I had nothing to do with the mess of burnt flux on the IR-rx , shonky cheap boards be shonky).

I'm having an issue getting the multitool SD card image to run on my RK3229 nand board, hoping someone may be able to help. Dumps below from the UART interface (two separate boots of the same image to capture initial SoC output at 1500000 baud and armbian output at 115200 baud. In 300MHz DDR3 Bus Width=32 Col=10 Bank=8 Row=15 CS=1 Die Bus-Width=16 Size=1024MB mach:2 OUT Boot1 Release Time: 2016-03-15, version: 2.31 ChipType = c 276 No.1 FLASH ID:ad de 14 a7 42 4a ECC:60 SdmmcInit=0 0 BootCapSize=0 UserCapSize=39c6000 FwPartOffset=2000 , 0 StorageInit ok = 520688 SecureMode : SBOOT_MODE_NS Loder code check ok! theLoader 0x61000000, loadaddr: 0x2000 Loder code check ok! theLoader 0x68400000, loadaddr: 0x4000 INF [0x0] TEE-CORE:init_primary_helper:377: Initializing (1.1.0-297-ga4fd2d1 #1 Thu May 17 10:22:22 UTC 2018 arm) INF [0x0] TEE-CORE:init_primary_helper:378: Release version: 2.0 INF [0x0] TEE-CORE:init_primary_helper:379: Next entry point address: 0x61000000 INF [0x0] TEE-CORE:init_teecore:83: teecore inits done U-Boot 2020.01-armbian (Apr 15 2020 - 12:30:37 +0000) Model: Generic Rockchip rk322x TV Box board DRAM: 1010 MiB MMC: dwmmc@30000000: 1, dwmmc@30020000: 0 Loading Environment from EXT4... Card did not respond to voltage select! In: serial@11030000 Out: serial@11030000 Err: serial@11030000 Model: Generic Rockchip rk322x TV Box board rockchip_dnl_key_pressed: adc_channel_single_shot fail! Net: eth0: ethernet@30200000 starting USB... Bus usb@30040000: scanning bus usb@30040000 for devices... 1 USB Device(s) found scanning usb for storage devices... 0 Storage Device(s) found stopping USB.. starting USB... Bus usb@30040000: scanning bus usb@30040000 for devices... 1 USB Device(s) found scanning usb for storage devices... 0 Storage Device(s) found Hit any key to stop autoboot: 0 Card did not respond to voltage select! Device 0: unknown device Card did not respond to voltage select! Speed: 100, full duplex BOOTP broadcast 1 BOOTP broadcast 2 BOOTP broadcast 3 DHCP client bound to address 192.168.1.145 (1005 ms) *** ERROR: `serverip' not set Cannot autoload with TFTPGET missing environment variable: pxeuuid missing environment variable: bootfile Retrieving file: pxelinux.cfg/01-52-7d-88-b9-f6-2c Speed: 100, full duplex *** ERROR: `serverip' not set missing environment variable: bootfile Retrieving file: pxelinux.cfg/C0A80191 Speed: 100, full duplex *** ERROR: `serverip' not set missing environment variable: bootfile Retrieving file: pxelinux.cfg/C0A8019 Speed: 100, full duplex *** ERROR: `serverip' not set missing environment variable: bootfile Retrieving file: pxelinux.cfg/C0A801 Speed: 100, full duplex *** ERROR: `serverip' not set missing environment variable: bootfile Retrieving file: pxelinux.cfg/C0A80 Speed: 100, full duplex *** ERROR: `serverip' not set missing environment variable: bootfile Retrieving file: pxelinux.cfg/C0A8 Speed: 100, full duplex *** ERROR: `serverip' not set missing environment variable: bootfile Retrieving file: pxelinux.cfg/C0A Speed: 100, full duplex *** ERROR: `serverip' not set missing environment variable: bootfile Retrieving file: pxelinux.cfg/C0 Speed: 100, full duplex *** ERROR: `serverip' not set missing environment variable: bootfile Retrieving file: pxelinux.cfg/C Speed: 100, full duplex *** ERROR: `serverip' not set missing environment variable: bootfile Retrieving file: pxelinux.cfg/default-arm-rk322x-rk322x-box Speed: 100, full duplex *** ERROR: `serverip' not set missing environment variable: bootfile Retrieving file: pxelinux.cfg/default-arm-rk322x Speed: 100, full duplex *** ERROR: `serverip' not set missing environment variable: bootfile Retrieving file: pxelinux.cfg/default-arm Speed: 100, full duplex *** ERROR: `serverip' not set missing environment variable: bootfile Retrieving file: pxelinux.cfg/default Speed: 100, full duplex *** ERROR: `serverip' not set Config file not found Speed: 100, full duplex BOOTP broadcast 1 DHCP client bound to address 192.168.1.145 (5 ms) *** ERROR: `serverip' not set Cannot autoload with TFTPGET Speed: 100, full duplex BOOTP broadcast 1 DHCP client bound to address 192.168.1.145 (4 ms) *** ERROR: `serverip' not set Cannot autoload with TFTPGET =>