There is a MBR option for boot of i.MX7 in reference manual of Figure 6-38.
But there is little explanation for MBR option.
Is there any hardware setting bit for MBR option ?
If Q1 is yes, which bit does user set ?
If Q1 is no, I think user set by their software, do you have any example for set it ?
When user doesn't use the option, do we need to set 0x00 to MBR region ?
In case of user doesn't use the option, if undefined values are written in the MBR area, will there be any difference in behavior after booting ?
Please contact me if it's lack of info.