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