topic B4860 boot from NAND/SPI flash problem in Qonverge

B4860 boot from NAND/SPI flash problem

frank2li — Wed, 15 Nov 2017 02:35:45 GMT

I have a customize B4860 board, there is no NOR flash.

There is one spansion spi flash and one MT29F4G08ABBDAH4 nand flash which is same with B4860QDS board. I'm using SDK-1.6, and use the u-boot config of B4860QDS_NAND_config to compile the u-boot. Final I got the u-boot-with-spl-pbl.bin image. Using codewarrior to write the uboot to the first block of nand flash. Then I switch the hw rcw_souce with 1_0000_01nn (for nn, I tried 00, 11, 01, 10, none of them work), seems the B4860 can't bootup. Anything wrong?

Anybody know the exact procedure to boot from NAND/SPI flash for B4860?

Re: B4860 boot from NAND/SPI flash problem

ufedor — Wed, 15 Nov 2017 12:45:28 GMT

You wrote:

> rcw_souce with 1_0000_01nn

This RCW corresponds to the 16-bit NAND Flash, for the 8-bit one it should be 1_0000_10nn

Re: B4860 boot from NAND/SPI flash problem

frank2li — Thu, 16 Nov 2017 01:03:42 GMT

Thanks!

From B4860 RM, 1_0000_01nn is for "8-bit NAND Flash, 2-Kbyte page, 64 pages/block", 1_0000_10nn is for "8-bit NAND Flash, 2-Kbyte page, 128 pages/block".

Re: B4860 boot from NAND/SPI flash problem

frank2li — Tue, 21 Nov 2017 04:25:52 GMT

Now spiboot works, b4860 uboot need to be changed to support spi boot. Thanks!