Hi,
When I tried to boot the Pynq image on the custom Xilinx ultrascale scale board I got the following error. I tried changing a few things in the devicetree but no effect.
4.433994] mmcblk0: mmc0:0001 00016G 14.6 GiB
[ 4.438751] mmcblk0boot0: mmc0:0001 00016G partition 1 4.00 MiB
[ 4.444898] mmcblk0boot1: mmc0:0001 00016G partition 2 4.00 MiB
[ 4.451639] cfg80211: Loaded X.509 cert ‘sforshee: 00b28ddf47aef9cea7’
[ 4.458172] clk: Not disabling unused clocks
[ 4.462444] ALSA device list:
[ 4.465411] No soundcards found.
[ 4.469171] platform regulatory.0: Direct firmware load for regulatory.db fa2
[ 4.477783] cfg80211: failed to load regulatory.db
[ 4.482622] mmcblk0rpmb: mmc0:0001 00016G partition 3 4.00 MiB, chardev (244)
[ 4.493267] VFS: Cannot open root device “mmcblk0p2” or unknown-block(179,2)6
[ 4.501199] Please append a correct “root=” boot option; here are the availa:
[ 4.509552] 0100 65536 ram0
[ 4.509553] (driver?)
[ 4.515648] 0101 65536 ram1
[ 4.515649] (driver?)
[ 4.521747] 0102 65536 ram2
[ 4.521748] (driver?)
[ 4.527843] 0103 65536 ram3
[ 4.527844] (driver?)
[ 4.533942] 0104 65536 ram4
[ 4.533943] (driver?)
[ 4.540039] 0105 65536 ram5
[ 4.540040] (driver?)
[ 4.540176] usb 1-1: new high-speed USB device number 2 using xhci-hcd
[ 4.543786] 0106 65536 ram6
[ 4.543788] (driver?)
[ 4.558735] 0107 65536 ram7
[ 4.558737] (driver?)
[ 4.564834] 0108 65536 ram8
[ 4.564835] (driver?)
[ 4.570931] 0109 65536 ram9
[ 4.570932] (driver?)
[ 4.577031] 010a 65536 ram10
[ 4.577032] (driver?)
[ 4.583213] 010b 65536 ram11
[ 4.583214] (driver?)
[ 4.589398] 010c 65536 ram12
[ 4.589399] (driver?)
[ 4.595582] 010d 65536 ram13
[ 4.595583] (driver?)
[ 4.601767] 010e 65536 ram14
[ 4.601768] (driver?)
[ 4.607942] 010f 65536 ram15
[ 4.607943] (driver?)
[ 4.614129] b300 15269888 mmcblk0
[ 4.614130] driver: mmcblk
[ 4.620924] Kernel panic - not syncing: VFS: Unable to mount root fs on unkn)
[ 4.629352] CPU: 3 PID: 1 Comm: swapper/0 Not tainted 5.4.0-xilinx-v2020.1 #1
[ 4.636473] Hardware name: xlnx,zynqmp (DT)
[ 4.640647] Call trace:
[ 4.643092] dump_backtrace+0x0/0x140
[ 4.646742] show_stack+0x14/0x20
[ 4.650051] dump_stack+0xac/0xd0
[ 4.653356] panic+0x140/0x2f8
[ 4.656404] mount_block_root+0x1d0/0x284
[ 4.660404] mount_root+0x124/0x158
[ 4.663885] prepare_namespace+0x15c/0x1a4
[ 4.667973] kernel_init_freeable+0x234/0x258
[ 4.672323] kernel_init+0x10/0xfc
[ 4.675716] ret_from_fork+0x10/0x18
[ 4.679285] SMP: stopping secondary CPUs
[ 4.683199] Kernel Offset: disabled
[ 4.686678] CPU features: 0x0002,20002004
[ 4.690677] Memory Limit: none
[ 4.693720] —[ end Kernel panic - not syncing: VFS: Unable to mount root f-log.txt (35.3 KB)
Here attaching the log file for reference.