Hi we are having trouble getting our IMX6D to boot on our new custom board. I see a lot of other people on the forum have trouble with this so here are the details for our issue:
We tried all combinations of BOOT_MODE select bits, and following along with Table 5-8 eMMC Boot Fusemap in the RM we tried Fast Boot 1/0, MMC speed 1/0, Fast Boock Ack 1/0
So here is what is working:
1.) Imx6 goes into revovery usb mode
2.) Push u-boot to imx6 from imx6_usb util
3.) U-boot loads into DDR and runs
4.) From u-boot mount emmc as usb mass storage device
5.) Using fdisk create partition and format it as ext2
6.) Copy full rootfs to flash
7.) Reboot
8.) Perform steps 1-3 again
9.) From u-boot copy kernel and dtb file into memory
10.) From u-boot boot kernel using bootz
11.) Kernel boots, and mounts emmc rootfs
12.) From linux now running on imx6 login
13.) Turn off read only mode for mmcblk0boot{0,1}
14.) From Linux dd if=/u-boot.imx of=/dev/mmcblk0boot{0,1} bs=512 seek=2
15.) sync
16.) read back both boot{0,1} into local files and then cmp -l -b u-boot.imx bootdata{0,1}, I also used diff and they are all the same.
17.) Using linux mmc-utils: mmc bootpart enable 1 1 /dev/mmcblk0 a. I tried changing both of the enable options to use different banks and to use/not use the Ack.
18.) Power cycle board: tried both hard power and reboot results is always the same.
19.) Imx6 powers on and always ends up in USB recovery mode.
I have tried this by setting pretty much all combos of the boot_cfg1 & boot_cfg2. Also I retried dd’n u-boot.imx into the user flash area to see if imx6 would try to boot it as well. No luck.
We would appreciate any thoughts and suggestions,
Steve
