The standard device tree (system-bsp.dts) doesn't set the SD Card to 3.3 V on the Ultra96 v2

[ubfx]

This can lead to errors like this one when booting:

Xilinx Zynq MP First Stage Boot Loader
Release 2020.2   Jan  8 2021  -  09:11:24
PMU Firmware 2020.2     Jan  8 2021   09:11:24
PMU_ROM Version: xpbr-v8.1.0-0


U-Boot 2020.01 (Oct 21 2020 - 13:39:28 +0000)

Board: Xilinx ZynqMP
DRAM:  2 GiB
PMUFW:  v1.1
EL Level:       EL2
Chip ID:        zu3eg
NAND:  0 MiB
MMC:   mmc@ff160000: 0, mmc@ff170000: 1
In:    serial@ff010000
Out:   serial@ff010000
Err:   serial@ff010000
Bootmode: SD_MODE
Reset reason:   EXTERNAL
Net:   No ethernet found.
Hit any key to stop autoboot:  0
switch to partitions #0, OK
mmc0 is current device
Scanning mmc 0:1...
Found U-Boot script /boot.scr
535 bytes read in 19 ms (27.3 KiB/s)
## Executing script at 20000000
Error reading cluster
** Unable to read file Image **
## Flattened Device Tree blob at 00100000
   Booting using the fdt blob at 0x100000
   Loading Device Tree to 000000000fff3000, end 000000000ffffecd ... OK

Starting kernel ...

unable to select a mode
device_remove: Device 'mmc@ff160000.blk' failed to remove, but children are gone
"Synchronous Abort" handler, esr 0x02000000
elr: ffffffff88f45000 lr : 000000000800265c (reloc)
elr: 0000000000d00000 lr : 000000007fdbd65c
x0 : 000000000fff3000 x1 : 0000000000000000
x2 : 0000000000000000 x3 : 0000000000000000
x4 : 0000000000280000 x5 : 0000000000000001
x6 : 0000000000000008 x7 : 0000000000000000
x8 : 000000007fe9d1a8 x9 : 0000000001008000
x10: 000000000a200023 x11: 0000000000000002
x12: 0000000000000002 x13: 000000007ddaadde
x14: 000000007dd9eda8 x15: 000000007fdbc9cc
x16: 000000007fe1af24 x17: 0000000000000000
x18: 000000007ddaadc8 x19: 000000007feb8e90
x20: 0000000000000000 x21: 0000000000000400
x22: 0000000000000003 x23: 000000007ddc0008
x24: 000000007ddc0008 x25: 000000007fe9fff0
x26: 0000000000000000 x27: 000000007fdbd684
x28: 000000007ddc0030 x29: 000000007dd9ee90

Code: fffffefe ffeffb5f ffff3ffe fe7fbf7b (ff9fdb7b)
Resetting CPU ...

### ERROR ### Please RESET the board ###

[belanasaikiran]

Hi,

any update on this ? How to fix this error?