IMX6ULLRM.pdf, page 273, figure 8-5.
Current Page = 0,
Search Stride = Stride Size Fuse Value,
Search Count = Boot Search Count Fuse Value
Where do I find these particular fuses? Table 5-7 on page 225 notes "Boot Seach Count" in BOOT_CFG2, but I couldn't find the "Stride Size" fuse.
the stride size is usually the pages in each block which comes from the boot configuration ( the value comes from external boot pins or fuse box when you are booting from fuse).
the configuration pins are: CFG2_1 and CFG2_2
|Pages In Block:|
00 - 128
01 - 64
10 - 32
11 - 256
"The search area contains copies of the FCB at each stride distance, so in case the first
NAND block becomes corrupted, the ROM will find its copy in the next NAND block.
The search area should span over at least two NAND blocks."