DLink DNS-325 second disk problem (no replies)

Hi everyone

I compiled and flashed u-boot 2018.07 with dns325_defconfig to my device
It could'n see second ide device

U-Boot 2018.07-dirty (Sep 19 2018 - 22:32:33 +0300)
D-Link DNS-325

SoC: Kirkwood 88F6281_A1
DRAM: 256 MiB
WARNING: Caches not enabled
NAND: 128 MiB
Loading Environment from NAND... OK
In: serial
Out: serial
Err: serial
Net: egiga0
IDE: Bus 0: ........OK Bus 1: not available 
Device 0: Model: WDC WD20EZRX-00DC0B0 Firm: 80.00A80 Ser#: WD-WCC1T0166503
Type: Hard Disk
Supports 48-bit addressing
Capacity: 1907729.0 MB = 1863.0 GB (3907029168 x 512)

It is not disk related problem, both disks are successfully detecting in first slot.

Any ideas for possible solutions?