We are trying to boot the Hikey(LeMaker version) board (2GB variant) using the eMMC high speed DDR mode, but unsuccessful.
Steps followed:
1. Added the property “mmc-ddr-1_8v” along with “cap-mmc-highspeed” in the file hi6220.dtsi.
Result:
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.
Thanks
Uthra