Are those ok? https://fi.mirror.armbian.de/incoming/igorpecovnik/radxa-e25/archive/ One current, one vendor.

The related PR states this was tested. @Efe Çetin can you confirm this still works as expected?

Normal boot with Bookworm for reference: [ 320.992063] watchdog: watchdog0: watchdog did not stop! [ 321.102430] reboot: Restarting system DDR 2d653b3476 typ 24/01/20-15:04:19,fwver: v1.21 In LP4/4x derate en, other dram:1x trefi ddrconfig:7 LPDDR4X, 324MHz BW=32 Col=10 Bk=8 CS0 Row=16 CS1 Row=16 CS=2 Die BW=16 Size=4096MB tdqss: cs0 dqs0: 48ps, dqs1: -48ps, dqs2: 24ps, dqs3: -120ps, tdqss: cs1 dqs0: 48ps, dqs1: -48ps, dqs2: 24ps, dqs3: -96ps, change to: 324MHz PHY drv:clk:36,ca:36,DQ:29,odt:0 vrefinner:24%, vrefout:41% dram drv:40,odt:0 clk skew:0x61 rx vref: 30.4% tx vref: 42.0% change to: 528MHz PHY drv:clk:36,ca:36,DQ:29,odt:0 vrefinner:24%, vrefout:41% dram drv:40,odt:0 clk skew:0x58 rx vref: 34.4% tx vref: 42.0% change to: 780MHz PHY drv:clk:36,ca:36,DQ:29,odt:60 vrefinner:16%, vrefout:41% dram drv:40,odt:0 clk skew:0x58 rx vref: 15.6% tx vref: 40.0% change to: 1560MHz(final freq) PHY drv:clk:36,ca:36,DQ:29,odt:60 vrefinner:16%, vrefout:22% dram drv:40,odt:80 vref_ca:00000071 clk skew:0x17 rx vref: 16.6% tx vref: 22.8% cs 0: the read training result: DQS0:0x36, DQS1:0x37, DQS2:0x36, DQS:0x30, min : 0xe 0x11 0x12 0x10 0x2 0x6 0x9 0x5 , 0xd 0xa 0x1 0x3 0xe 0xe 0xe 0xa , 0x10 0x11 0xb 0xa 0x3 0x5 0x5 0x6 , 0xa 0x8 0x4 0x2 0xe 0x12 0xd 0xf , mid :0x29 0x2b 0x2d 0x2a 0x1d 0x20 0x23 0x21 ,0x26 0x26 0x1d 0x1e 0x28 0x29 0x29 0x26 , 0x2c 0x2d 0x25 0x24 0x1c 0x1d 0x1e 0x1f ,0x24 0x21 0x1f 0x1b 0x28 0x2b 0x27 0x29 , max :0x44 0x45 0x48 0x45 0x39 0x3b 0x3d 0x3e ,0x3f 0x42 0x39 0x39 0x43 0x45 0x44 0x43 , 0x49 0x49 0x3f 0x3e 0x35 0x36 0x37 0x39 ,0x3f 0x3b 0x3a 0x35 0x43 0x45 0x41 0x43 , range:0x36 0x34 0x36 0x35 0x37 0x35 0x34 0x39 ,0x32 0x38 0x38 0x36 0x35 0x37 0x36 0x39 , 0x39 0x38 0x34 0x34 0x32 0x31 0x32 0x33 ,0x35 0x33 0x36 0x33 0x35 0x33 0x34 0x34 , the write training result: DQS0:0x20, DQS1:0xe, DQS2:0x1b, DQS3:0x4, min :0x70 0x74 0x74 0x72 0x64 0x68 0x6b 0x6a 0x68 ,0x5d 0x5a 0x53 0x53 0x5e 0x5e 0x5e 0x5b 0x58 , 0x6c 0x6d 0x68 0x68 0x5f 0x5e 0x5e 0x61 0x64 ,0x56 0x52 0x4e 0x4a 0x57 0x5a 0x52 0x5a 0x4e , mid :0x8b 0x8f 0x8f 0x8c 0x7d 0x81 0x84 0x82 0x81 ,0x78 0x76 0x6e 0x6c 0x79 0x77 0x78 0x75 0x72 , 0x88 0x89 0x81 0x81 0x79 0x77 0x78 0x7a 0x7d ,0x70 0x6c 0x69 0x62 0x72 0x73 0x6c 0x73 0x69 , max :0xa7 0xaa 0xab 0xa6 0x97 0x9b 0x9e 0x9b 0x9b ,0x93 0x93 0x89 0x86 0x94 0x91 0x92 0x8f 0x8c , 0xa5 0xa5 0x9b 0x9b 0x93 0x90 0x92 0x93 0x97 ,0x8a 0x86 0x84 0x7b 0x8d 0x8d 0x87 0x8d 0x84 , range0x37 0x36 0x37 0x34 0x33 0x33 0x33 0x31 0x33 ,0x36 0x39 0x36 0x33 0x36 0x33 0x34 0x34 0x34 , 0x39 0x38 0x33 0x33 0x34 0x32 0x34 0x32 0x3 ,0x34 0x34 0x36 0x31 0x36 0x33 0x35 0x33 0x36 , cs 1: the read training result: DQS0:0x36, DQS1:0x37, DQS2:0x36, DQS3:0x30, min : 0xe 0x11 0x12 0x10 0x2 0x6 0x9 0x5 , 0xd 0xa 0x1 0x3 0xe 0xe 0xe 0xa , 0x10 0x11 0xb 0xa 0x3 0x5 0x5 0x6 , 0a 0x8 0x4 0x2 0xe 0x12 0xd 0xf , mid :0x29 0x2b 0x2d 0x2a 0x1d 0x20 0x23 0x21 ,0x26 0x26 0x1d 0x1e 0x28 0x29 0x29 0x26 , 0x2c 0x2d 0x25 0x24 0x1c 0x1d 0x1e 0x1f ,0x24 0x21 0x1f 0x1b 0x28 0x2b 0x27 0x29 , max :0x44 0x45 0x48 0x45 0x39 0x3b 0x3d 0x3e ,0x3f 0x42 0x39 0x39 0x43 0x45 0x44 0x43 , 0x49 0x49 0x3f 0x3e 0x350x36 0x37 0x39 ,0x3f 0x3b 0x3a 0x35 0x43 0x45 0x41 0x43 , range:0x36 0x34 0x36 0x5 0x37 0x35 0x34 0x39 ,0x32 0x38 0x38 0x36 0x35 0x37 0x36 0x39 , 0x39 0x38 0x34 0x34 0x32 0x31 0x32 0x33 ,0x35 0x33 0x36 033 0x35 0x33 0x34 0x34 , the write training result: DQS0:0x20, DQS1:0xe, DQS2:0x1b, DQS3:0x4, min :0x70 0x74 0x74 0x72 0x64 0x68 0x6b 0x6a 0x68 ,0x5d 0x5a 0x53 0x53 0x5e 0x5e 0x5e 0x5b 0x58 , 0x6c 0x6d 0x68 0x68 0x5f 0x5e 0x5e 0x61 0x64 ,0x56 0x52 0x4e 0x4a 0x57 0x5a 0x52 0x5a 0x4e , mid :0x8b 0x8f 0x8f 0x8c 0x7d 0x81 0x84 0x82 0x81 ,0x78 0x76 0x6e 0x6c 0x79 0x77 0x78 0x75 0x72 , 0x88 0x89 0x81 0x81 0x79 0x77 0x78 0x7a 0x7d ,0x70 0x6c 0x69 0x62 0x72 0x73 0x6c 0x73 0x69 , max :0xa7 0xaa 0xab 0xa6 0x97 0x9b 0x9e 0x9b 0x9b ,0x93 0x93 0x89 0x86 0x94 0x91 0x92 0x8f 0x8c , 0xa5 0xa5 0x9b 0x9b 0x93 0x90 0x92 0x93 0x97 ,0x8a 0x86 0x84 0x7b 0x8d 0x8d 0x87 0x8d 0x84 , range:0x37 0x36 0x37 0x34 0x33 0x33 0x33 0x31 0x33 ,0x36 0x39 0x36 0x33 0x36 0x33 0x34 0x34 0x34 , 0x39 0x38 0x33 0x33 0x34 0x32 0x34 0x32 0x33 ,0x3 0x34 0x36 0x31 0x36 0x33 0x35 0x33 0x36 , CA Training result: cs:0 min :0x55 0x50 0x47 0x42 0x48 0x3e 0x4a ,0x53 0x4a 0x49 0x3f 0x47 0x3d 0x4c , cs:0 mid :0x92 0x91 0x84 0x82 0x85 0x7f 0x78 ,0x8f 0x8c 0x84 0x80 0x83 0x7f 0x7a , cs:0 max :0xcf 0xd2 0xc1 0xc3 0xc2 0xc1 0xa7 ,0xcb 0xce 0xc0 0xc2 0xbf 0xc1 0xa9 , cs:0 range:0x7a 0x82 0x7a 0x81 0x7a 0x83 0x5d ,0x78 0x84 0x77 0x83 0x78 0x84 0x5d , cs:1 min :0x51 0x54 0x46 0x47 0x47 0x44 0x4d ,0x53 0x4f 0x48 0x47 0x45 0x44 0x4c , cs:1 mid :0x91 0x90 0x86 0x84 0x85 0x80 0x7d ,0x93 0x8d 0x86 0x84 0x84 0x82 0x7a , cs:1 max :0xd2 0xcd 0xc6 0xc1 0xc4 0xbd 0xad ,0xd3 0xcc 0xc5 0xc1 0xc3 0xc0 0xa9 , cs:1 range:0x81 0x79 0x80 0x7a 0x7d 0x79 0x60 ,0x80 0x7d 0x7d 0x7a 0x7e 0x7c 0x5d , U-Boot PL board init U-Boot SPL 2017.09_armbian-2017.09-S93fe-P9666-Hbdb5-Vec91-Bbf55-R448a (Nov 06 2025 - 03:51:10) sfc cmd=0fH(6BH-x4) unknown raw ID 0 0 0 unrecognized JEDEC id bytes: 00, 00, 00 Trying to boot from MMC2 No misc partition spl: partition error Trying fit image at 0x400 sector ## Verified-boot: 0 ## Checking atf-1 0x00040000 ... sha256(b5946ac63d...) + OK ## Checking uboot 0x00a00000 ... sha256(f0e5ac3d0c...) + OK ## Checking fdt 0x00b55970 ... sha256(544a71302c...) + OK ## Checking atf-2 0xfdcc1000 ... sha256(b8dca786b4...) + OK ## Checking atf-3 0x0006b000 ... sha256(2f91089eb7...) + OK ## Checking atf-4 0xfdcce000 ... sha256(86ef885748...) + OK ## Checking atf-5 0xfdcd0000 ... sha256(0b2b146c60...) + OK ## Checking atf-6 0x00069000 ... sha256(a9a1e63bef...) + OK Jumping to U-Boot(0x00a00000) via ARM Trusted Firmware(0x00040000) Total: 272.770/429.344 ms INFO: Preloader serial: 2 NOTICE: BL31: v2.3():v2.3-645-g8cea6ab0b:cl, fwver: v1.44 NOTICE: BL31: Built : 16:36:43, Sep 19 2023 INFO: GICv3 without legacy support detected. INFO: ARM GICv3 driver initialized in L3 INFO: pmu v1 is valid 220114 INFO: l3 cache partition cfg-0 INFO: dfs DDR fsp_param[0].freq_mhz= 1560MHz INFO: dfs DDR fsp_param[1].freq_mhz= 324MHz INFO: dfs DDR fsp_param[2].freq_mhz= 528MHz INFO: dfs DDR fsp_param[3].freq_mhz= 780MHz INFO: Using opteed sec cpu_context! INFO: boot cpu mask: 0 INFO: BL31: Initializing runtime services WARNING: No OPTEE provided by BL2 boot loader, Booting device without OPTEE initialization. SMC`s destined for OPTEE will return SMC_UNK ERROR: Error initializing runtime service opteed_fast INFO: BL31: Preparing for EL3 exit to normal world INFO Entry point address = 0xa00000 INFO: SPSR = 0x3c9 U-Boot 2017.09-armbian-2017.09-S2284-P8c48-Hfac6-V02d4-Bda0a-R448a (Nov 20 2024 - 17:01:23 +0000) Model: Radxa E25 Carrier Board MPIDR: 0x81000000 PreSerial: 2, raw, 0xfe660000 DRAM: 4 GiB Sysmem: init Relocation Offset: ed20a000 Relocation fdt: eb9f6638 - eb9fecc8 CR: M/C/I Using default environment DM: v1 dwmmc@fe2b0000: 1, dwmmc@fe2c0000: 2, sdhci@fe310000: 0 switch to partitions #0, OK mmc1 is current device Boot from SDcard Bootdev(scan): mmc 1 MMC1: Legacy, 52Mhz PartType: EFI No misc partition boot mode: one FIT: No boot partition Failed to load DTB, ret=-19 No vali DTB, ret=-22 Failed to get kernel dtb, ret=-22 I2c0 speed: 100000Hz vsel-gpios- not found! Error: -2 FAN53555Opton[12] Rev[15] Detected! vdd_cpu init 900000 uV PMIC: RK8090 (on=0x02, off=0x00) vdd_logic init 900000 uV vdd_gpu init 900000 uV vdd_npu init 900000 uV io-domain: OK Failed to get scmi clk dev dmc_fsp failed, ret=-19 Model: Radxa E25 Carrier Board MPIDR: 081000000 ## Error: Can't overwrite "ethaddr" ## Error inserting "ethaddr" variable, errno=1 ## Error: Can't overwrite "eth1addr" ## Error inserting "eth1addr" variable, errno=1 CLK: (sync kernel. arm: enter 816000 KHz, init 816000 KHz, kernel 0N/A) apll 816000 KHz dpll 780000 KHz gpll 1188000 KHz cpll 1000000 KHz npll 1200000 KHz vpll 24000 KHz hpll 24000 KHz ppll 200000 KHz armclk 816000 KHz aclk_bus 150000 KHz pclk_bus 100000 KHz aclk_top_high 300000 KHz aclk_top_low 200000 KHz hclk_top 150000 KHz pclk_top 100000 KHz aclk_perimid 300000 KHz hclk_perimid 150000 KHz pclk_pmu 100000 KHz No msc partition Net: No ethernet found. Hit key to stop autoboot('CTRL+C'): 0 starting USB... Bus dwc3@fcc00000: usb maximum-speed not found Register 2000140 NbrPorts 2 Starting the controller USB XHCI 1.10 Bus dwc3@fd000000: usb maximum-speed not found Register 2000140 NbrPorts 2 Starting the controller USB XHCI 1.10 scanning bus dwc3@fcc00000 for devices... 1 USB Device(s) found scanning bus dwc3@fd000000 for devices... 1 USB Device(s) found scanning usb for storage devices... 0 Storage Device(s) found Device 0: unknown device switch to partitions #0, OK mmc1 is current device Scanning mmc 1:1... Found U-Boot script /boot.scr reading /boot.scr 4149 bytes read in 2 ms (2 MiB/s) ## Executin script at 00c00000 Boot script loaded from mmc 1:1 reading /armbianEnv.txt 234 bytes read in 1 ms (228.5 KiB/s) reading /uInitrd 14321257 bytes read in 1191 ms (11.5 MiB/s) reading Image 30097920 bytes read in 2500 ms (11.5 MiB/s) reading /dtb/rockchip/rk356-radxa-e25.dtb 117127 bytes read in 16 ms (7 MiB/s) Trying kaslrseed command... Info: Unknown command can be safely ignored since kaslrseed does not apply to all boards. Unknown command 'kaslrseed' - try 'help' Fdt Ramdisk skip relocation No misc partition ## Loading init Ramdisk from Legacy Image at 0a200000 ... Image Name: uInitrd Image Type: AArch64 Linux RAMDisk Image (gzip compressed) Data Size: 14321193 Bytes = 13.7 MiB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK ## Flattened Device Tree blob at 0x08300000 Booting using the fdt blob at 0x08300000 reserving fdt memory region: addr=8300000 size=82000 Using Device Tree in place at 0000000008300000, end 0000000008384fff can't found rockchip,drm-logo, use rockchip,fb-logo WARNING: could not set reg FDT_ERR_BADOFFSET. failed to reserve fb-loader-logo memory WARNING: could not set reg FDT_ERR_BADOFFSET. Adding bank: 0x00200000 - 0xf0000000 (size: 0xefe00000) Adding bank: 0x1f0000000 - 0x200000000 (size: 0x10000000) Totl: 7590.510/7597.227 ms Starting kernel ... Armbian 24.11.1 Bookworm ttyS2 radxa-e25 login:

Update... I figured out how to do it. Oh, and the docs show the baud rate to be 115200 like normal devices, but no - it's actually 1500000 baud. ---- Reopened serial port /dev/tty.usbserial-3120 ---- DDR 2d653b3476 typ 24/01/20-15:04:19,fwver: v1.21 In LP4/4x derate en, other dram:1x trefi ddrconfig:7 LPDDR4X, 324MHz BW=32 Col=10 Bk=8 CS0 Row=16 CS1 Row=16 CS=2 Die BW=16 Size=4096MB tdqss: cs0 dqs0: 48ps, dqs1: -48ps, dqs2: 24ps, dqs3: -120ps, tdqss: cs1 dqs0: 48ps, dqs1: -48ps, dqs2: 24ps, dqs3: -96ps, change to: 324MHz PHY dr:clk:36,ca:36,DQ:29,odt:0 vrefinner:24%, vrefout:41% dram drv:40,odt:0 clk skew:0x61 rx vref: 30.4% tx vref: 40.0% change to: 528MHz PHY drv:clk:36,ca:36,DQ:29,odt:0 vrefinner:24%, vrefout:41% dram drv:40,odt:0 clk skew:0x58 rx vref: 34.4% tx vref: 40.0% change to: 80MHz PHY drv:clk:36,ca:36,DQ:29,odt:60 vrefinner:16%, vrefout:41% dram drv:40,odt:0 clk skew:0x58 rx vref: 15.6% tx vref: 40.0% change to: 1560MHz(final freq) PHY drv:clk:36,ca:36,DQ:29,odt:60 vrefinner:16%, vrefout:22% dram drv:40,odt:80 vref_ca:00000071 clk skew:0x17 rx vref: 16.6% tx vref: 22.8% cs 0: the read training result: DQS0:0x35, DQS1:0x36, DQS2:0x35, DQS3:0x2f, min : 0xf 0x11 0x12 0x10 0x2 0x6 0x8 0x6 , 0xe 0xb 0x1 0x3 0xe 0xe 0xe 0xa , 0x10 0x10 0xb 0xa 0x2 0x4 0x6 0x6 , 0xa 0x7 0x4 0x1 0xe 0x11 0xc 0xf , mid :0x29 0x2b 0x2c 0x2a 0x1d 0x20 0x22 0x21 ,0x26 0x26 0x1 0x1e 0x28 0x28 0x28 0x25 , 0x2b 0x2b 0x24 023 0x1b 0x1d 0x1e 0x1f ,0x24 0x20 0x1e 0x1a 0x27 02a 0x25 0x28 , max :0x43 0x45 0x47 0x44 0x38 0x3a 0x3c 0x3d ,0x3e 0x41 0x38 0x39 0x42 0x43 0x43 0x41 , 0x47 0x4 0x3e 0x3d 0x34 0x36 0x36 0x39 ,0x3e 0x3a 0x38 0x34 0x40 0x43 0x3e 0x41 , range:0x34 0x34 0x35 0x34 0x36 0x34 0x34 0x37 ,0x30 0x36 0x37 0x36 0x34 0x35 0x35 0x37 , 0x37 0x37 0x33 0x33 0x32 0x32 0x30 0x33 ,0x34 0x33 0x34 0x33 0x32 0x32 0x32 0x32 , the write training result: DQS0:0x20, DQS1:0xe, DQS2:0x1b, DQS3:0x4, min :0x6f 0x73 0x74 0x71 0x63 0x68 x6a 0x6a 0x68 ,0x5c 0x59 0x52 0x52 0x5d 0x5d 0x5d 0x5b 0x58 , 0x6c 0x6d 0x68 0x68 0x5f 0x5e 0x5d 0x61 0x64 ,0x55 0x51 0x4e 0x4a 0x57 0x59 0x51 0x59 0x4e , mid :0x8b 0x8e 0x8f 0x8b 0x7c 0x82 0x84 0x82 0x81 ,0x76 0x75 0x6d 0x6c 0x78 0x76 0x76 0x75 0x71 , 0x88 0x89 0x81 0x81 0x79 0x76 0x77 0x7a 0x7d ,0x6f 0x6b 0x68 0x62 0x71 0x72 0x6c 0x73 0x68 , max :0xa7 0xa9 0xaa 0xa6 0x96 0x9c 0x9e 0x9a 0x9a ,0x910x91 0x89 0x86 0x93 0x90 0x90 0x8f 0x8b , 0xa5 0xa5 0x9b 0x9a 0x93 0x8f 0x92 0x93 0x97 ,0x89 0x86 0x83 0x7b 0x8c 0x8c 0x87 0x8d 0x83 , range:0x38 0x36 0x36 0x35 0x33 0x34 0x34 0x30 0x32 ,0x35 0x38 0x37 0x34 0x36 0x33 0x33 0x34 0x33 , 0x39 0x38 0x33 0x32 0x34 0x31 0x35 0x32 0x33 ,0x34 0x35 0x35 0x31 0x35 0x33 0x36 0x34 0x35 , cs 1: the read training result: DQS0:0x35, DQS1:0x36, DQS2:0x35, DQS3:0x2f, min : 0xf 0x11 0x12 0x10 0x2 0x6 0x8 0x6 , 0xe 0xb 0x1 0x3 0xe 0xe 0xe 0xa , 0x10 0x10 0b 0xa 0x2 0x4 0x6 0x6 , 0xa 0x7 0x4 0x1 0xe 0x11 0xc 0xf , mid :029 0x2b 0x2c 0x2a 0x1d 0x20 0x22 0x21 ,0x26 0x26 0x1c 0x1e 0x28 0x28 0x28 0x25 , 0x2b 0x2b 0x24 0x23 0x1b 0x1d 0x1e 0x1f ,0x24 0x20 0x1e 0x1a 0x27 0x2a 0x25 0x28 , max :0x43 0x45 0x47 0x44 0x38 0x3a 0x3c 0x3d ,0x3e 0x41 0x38 0x39 0x42 0x43 0x43 0x41 , 0x47 0x47 0x3e 0x3d 0x34 0x36 0x36 0x39 ,0x3e 0x3a 0x38 0x34 0x40 0x43 0x3e 0x41 , range:0x34 0x34 0x35 0x34 0x36 0x34 0x34 0x37 ,0x30 0x36 0x37 0x36 0x34 0x35 0x35 0x37 , 0x37 0x37 0x33 0x33 0x32 0x32 0x30 0x33 ,0x34 0x33 0x34 0x33 0x32 0x32 0x32 0x32 , the write training result: DQS0:0x20, DQS1:0xe, DQS2:0x1b, DQS3:0x4, min :0x6f 0x73 0x74 0x71 0x63 0x68 0x6a 0x6a 0x68 ,0x5c 0x59 0x52 0x52 0x5d 0x5d 0x5d 0x5b 0x58 , 0x6c 0x6d 0x68 0x68 0x5f 0x5e 0x5d 0x61 0x64 ,0x55 0x51 0x4e0x4a 0x57 0x59 0x51 0x59 0x4e , mid :0x8b 0x8e 0x8f 0x8b 0x7c 0x82 0x84 0x82 0x81 ,0x76 0x75 0x6d 0x6c 0x78 0x76 0x76 0x75 0x7 , 0x88 0x89 0x81 0x81 0x79 0x76 0x77 0x7a 0x7d ,0x6f 0x6b 0x68 0x62 0x71 0x72 0x6c 0x73 0x68 , max :0xa7 0xa9 0xaa 0xa6 0x96 0x9c 0x9e 0x9a 0x9a ,0x91 0x91 0x89 0x86 0x93 0x90 0x90 0x8f 0x8b , 0xa5 0xa5 0x9b 0x9a 0x93 0x8f 0x92 0x93 0x97 ,0x89 0x86 0x83 0x7b 0x8c 0x8c 0x87 0x8d 0x83 , range:0x38 0x36 0x36 0x35 0x33 0x34 0x34 0x30 0x32 ,0x35 0x38 0x37 0x34 0x36 0x33 0x33 0x34 0x33 , 0x39 0x38 0x33 0x32 0x34 0x31 0x35 0x32 0x33 ,0x34 0x35 0x35 0x31 0x35 0x33 0x36 0x34 0x35 , CA Training result: cs:0 min :0x55 0x50 0x47 0x42 0x48 0x3f 0x4a ,0x53 0x4a 0x49 0x3f 0x47 0x3e 0x4c , cs0 mid :0x92 0x91 0x84 0x82 0x85 x80 0x78 ,0x8f 0x8c 0x84 0x80 0x83 0x7f 0x7a , cs:0 max :0xcf 0xd2 0xc1 0xc3 0xc2 0xc1 0xa7 ,0xcb 0xce 0xc0 0xc2 0xbf 0xc1 0xa9 , cs:0 range:0x7 0x82 0x7a 0x81 0x7a 0x82 x5d ,0x78 0x84 0x77 0x83 0x78 0x3 0x5d , cs:1 min :0x52 0x54 0x47 0x47 0x47 0x44 0x4e ,0x54 0x4f 0x48 0x47 0x45 0x45 0x4b , cs:1 mid :0x92 0x91 0x86 0x84 0x85 0x81 0x7d ,0x94 0x8d 0x87 0x84 0x84 0x82 0x7b , cs:1 max :0xd3 0xce 0xc6 0xc2 0xc4 0xbe 0xad ,0xd5 0xcc 0xc6 0xc1 0xc3 0xc0 0xab , cs:1 range:0x81 0x7a 0x7f 0x7b 0x7d 0x7a 0x5f ,0x81 0x7d 0x7e 0x7a 0x7e 0x7b 0x60 , out U-Boot SPL board init U-Boot SPL 2017.09_armbian-2017.09-S93fe-P9666-Hbdb5-Vec91-Bbf55-R448a (Nov 06 2025 - 03:5:10) sfc cmd=0fH(6BH-x4) unknown raw ID 0 0 0 unrecognized JEDEC id bytes: 00, 00, 00 Trying to boot from MMC2 No misc partition spl: partition error Trying fit image at 0x4000 sector ## Verified-boot: 0 ## Checking atf-1 0x00040000 ... sha256(b5946ac63d...) + OK ## Checking uboot 0x00a00000 ... sha256(2ba66b66df...) + OK ## Checking fdt 0x00b53a98 ... sha256(e3b0c44298...) + OK fdt_record_loadable: FDT_ERR_BADMAGIC ## Checking atf-2 0xfdcc1000 ... sha256(b8dca786b4...) + OK fdt_record_loadable: FDT_ERR_BADMAGIC ## Checking atf-3 0x0006b000 ... sha256(2f91089eb7...) + OK fdt_record_loadable: FDT_ERR_BADMAGIC ## Checking atf-4 0xfdcce000 ... sha256(86ef885748..) + OK fdt_record_loadable: FDT_ERR_BADMAGIC ## Checing atf-5 0xfdcd0000 ... sha256(0b2b146c60..) + OK fdt_record_loadable FDT_ERR_BADMAGIC ## Checking atf-6 0x00069000 ... sha256(a9a1e63bef...) + OK fdt_record_loadable: FDT_ERR_BADMAGIC Jumping to UBoot(0x00a00000) via ARM Trusted Firmware(0x00040000) Total: 282.455/439.40 ms INFO: reloader serial: 2 NOTICE: BL31: v2.3():v2.3-645-g8cea6ab0b:cl, fwver: v1.44 NOTICE: BL31: Built : 16:36:43, Sep 19 2023 INFO: GICv3 without legacy support detected. INFO: ARM GICv3 driver initialized in EL3 INFO: pmu v1 is valid 220114 INFO: l3 cache partition cfg-0 INF: dfs DDR fsp_param[0].freq_mhz= 1560MHz INFO: dfs DDR fsp_param[1].freq_mhz= 324MHz INFO: dfs DDR fsp_param[2].freq_mhz= 528MHz INFO: dfs DDR fsp_param[3].freq_mhz= 780MHz INFO: Using opteed sec cpu_context! INFO: boot cpu mask: 0 INFO: BL31: Initializing runtime ervices WARNING: No OPTEE provided by BL2 boot loader, Booting device without OPTEE initialization. SMC`s destined for OPTEE will return SMC_UNK ERROR: Error initializing runtime service opteed_fast INFO: BL31: Preparing for EL3 exit to normal world INFO: Entry point address = 0xa00000 INFO: SPSR = 0x3c9 No valid device tree binary found - please append one to U-Boot binary, use u-boot-dtb.bin or define CONFIG_OF_EMBED. For sandbox, use -d <file.dtb> initcall sequence 0000000000ad26c0 failed at call 0000000000ac4528 (err=-1) ### ERROR ### Please RESET the board ###

Ya, I know, but I haven't figured out how to work with these devices that have "built in" serial->USB adapters. The USBC becomes a serial port when connected to my computer, but that also powers it on, and it's not actually a port until the e25 has power. It's a catch-22. It needs power for the port to appear, and by the time the port appears and you've already missed part of the log. The e20c is much better, it has a separate power and debug port. 🙂 https://www.dropbox.com/scl/fi/u27poqubrg4rywz1xfjo5/IMG_3840.jpeg?rlkey=1mbl58bl8cy0b9i1s3xxjuh6y&dl=0