How to do for nand boot config"boot search count"?

[翔李]

HI,

I plan to design a car board on imx6 solo,to boot from SD3 or 256MB nand flash,When insert a TF card it selects SD3 boot,else boot from nand.

BOOT_CFG2[4:3]=10 to select SD3,so,wneh to select nand boot,the BOOT_CFG2[4:3] select which one?The nand IC is winbond W29N02GVSIAA.

What is meaning of"boot search count"?

[igorpadykov]

Hi

please refer to sect. 8.5.2.3 Firmware Configuration Block i.MX6DQ Reference Manual

http://cache.freescale.com/files/32bit/doc/ref_manual/IMX6DQRM.pdf 

The FCB is the first sector in the first good block. The FCB should be present at each
search stride of the search area.
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.

Best regards
igor
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[翔李]

HI,

Thanks.

But,I do not know which number for me to select,00?01?10?11?I am poor in NAND boot,sorry.

In my board,can I select 10-4 for boot search count nand falsh?

[igorpadykov]

please check settings for i.MX6 Sabre AI board which uses NAND

Schematics (5)
Design files for i.MX 6Quad and i.MX 6DualLite CPU1 Cards
Design files for Base Board (REV E)

http://www.nxp.com/products/software-and-tools/hardware-development-tools/sabre-development-system/s...

Linux Guide in Linux Documentation

http://www.nxp.com/webapp/Download?colCode=L4.1.15_2.0.0-LINUX-DOCS&Parent_nodeId=133769948107170617... 

Best regards
igor

[翔李 · Accepted solution]

THANKS.