drive large-page nand flash with the eLBS FCM of P1020

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drive large-page nand flash with the eLBS FCM of P1020

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liusong
Contributor I

Hi.I am trying to drive large-page nand flash with the eLBS FCM of P1020.

But when i  wrote full-entire page with ecc generation(FBCR[BC]=0),all data was sucessfully written other than ecc data which is from Flash ECC block n registers(eLBC_FECCn).And the lower 24bits value eLBC_FECCn always are zeroes after transfer finish.

After read entire-page data of flash with ecc checking,the transfer error ecc register captures no error informmation.And the lower 24bits value eLBC_FECCn always are also zeroes after transfer finish.

what's problem i may have?

Original Attachment has been moved to: ecc.txt.zip

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ufedor
NXP Employee
NXP Employee

Which exactly large-page nand flash device is in question?

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liusong
Contributor I

samsung K9F2G08U0B      page size: (2K + 64)Byte,block size:(128K+4K)Byte

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ufedor
NXP Employee
NXP Employee

Please refer to the "u-boot/drivers/mtd/nand/fsl_elbc_nand.c" included into the Linux SDK SOURCE ISO available at:

https://freescaleesd.flexnetoperations.com/337170/637/10322637/QorIQ%20Linux%20SDK%20v2.0%20SOURCE.i... 

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