We are trying to boot the Hikey(LeMaker version) board (2GB variant) using the eMMC high speed DDR mode, but unsuccessful.
1. Added the property “mmc-ddr-1_8v” along with “cap-mmc-highspeed” in the file hi6220.dtsi.
The board fails to boot.
The output on the serial console is as below [ 2.373839] mmc0: new DDR MMC card at address 0001 [ 2.375966] ledtrig-cpu: registered to indicate activity on CPUs [ 2.377365] hidraw: raw HID events driver (C) Jiri Kosina [ 2.386906] usbcore: registered new interface driver usbhid [ 2.386945] usbhid: USB HID core driver [ 2.393723] mmcblk0: mmc0:0001 008G70 7.28 GiB [ 2.395380] mmcblk0boot0: mmc0:0001 008G70 partition 1 4.00 MiB [ 2.396913] mmcblk0boot1: mmc0:0001 008G70 partition 2 4.00 MiB [ 2.398365] mmcblk0rpmb: mmc0:0001 008G70 partition 3 4.00 MiB [ 2.400818] mmcblk0: error -110 sending status command, retrying [ 2.400864] mmcblk0: error -110 sending stop command, original cmd response 0x900, card status 0x900 [ 2.400883] mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0
Kindly let us know the procedure to set the eMMC DDR mode and boot the board successfully.