Micro-SD Card not detecting

Hi All, We are working rzg2n based customized board,we got uboot working. Our hard ware voltage for SDIO interface is 1.8V fixed. when we try to detect micro-sd  card

it is  showing below error.

U-Boot 2018.09 (Feb 06 2023 - 11:03:23 +0000)

 

CPU: Renesas Electronics R8A774B1 rev 1.1
Model: Relysys Technologies Relysys RZ/G2N platform (relysys-rzg2n)
DRAM:  1.9 GiB
Bank #0: 0x048000000 - 0x0bfffffff, 1.9 GiB

 

Watchdog: Not found by seq!
WDT:   watchdog@e6020000
Watchdog: Started!
MMC:   sd@ee140000: 0, sd@ee160000: 1
Loading Environment from MMC... *** Warning - bad CRC, using default environment

 

In:    serial@e6e88000
Out:   serial@e6e88000
Err:   serial@e6e88000
Net:   eth-1: ethernet@e6800000
Hit any key to stop autoboot:  0
=>
=>
=> mmc info
Card did not respond to voltage select!


Please help us to  how to set  microsd card voltage to 1.8v in software and get it work,

Thanks and regards,

Nagaraja