Hello, i have a weird situation with the sd/mmc card recovery mode on my custom imx8mmini board.
When i don't burn the efuses for boot selection, it boots normally from the sdcard.
When i burn the fuses (to nand + bt_fuse_sel) it normally starts from nand
When i try to press the boot mode pin so that BOOT_MODE[1:0]=01b it's directly skipping the sdmmc card to usb downloader mode. This behaves the same, before and after burning the fuses. I am able to transfer a image via the uuu tool, so I am sure that it is in the usb dowload mode.
The Disable SDMMC Manufacture mode bit is set to 0 (didn't touch that one)
And while looking the graph i thought it should behave the same if it is boot_mode=0 + bt_fuse_sel=0 or when puting the boot_mode to 1
Do I maybe need to fuse something else? modify my u-boot spl code? Any ideas would be appreciated!
Thanks,
Darko
According to the Reference Manual (Table below of the Boot Mode and the boot sequence), it jumps to usb download when Boot Mode is 1.
But bellow figure 6-2 this there is this comment:
And the card is inserted on my place, as before the fusing it was going to sdcard boot...
According to the 6.1.11, when the internal boot and recover boot (if enabled) failed , the boot goes to the
SD/MMC manufacture mode before the serial download mode.
