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DM365 PSP 2.10.00.14: NAND ECC error when there is reading operation on other EMIF space (Yaffs2 FS)

Chris Meng
Mastermind 35225 points

Hi,

My customer is using DM365 EMIF CS0 to connect NAND and CS1 to connect HPI of othe TI DSP. Customer is using PSP 2.10.00.14 and Yaffs2 filesystem.They made own EMIF driver for CS1 access.

And they found if there is accessing at CS1 space, sometimes there will be NAND ECC error showed on serial terminal. If they add kernel lock in get device of nand driver, the error appeared less, but still there. Customer also has ISR which will access CS1.

Any comment to solve this problem? Thanks!