Messages in this thread | | | Subject | Re: [PATCH 10/15] MTD: nand: make reads using MTD_OOB_RAW affect only ECC validation | From | Maxim Levitsky <> | Date | Mon, 22 Feb 2010 23:28:07 +0200 |
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On Mon, 2010-02-22 at 22:20 +0100, Thomas Gleixner wrote: > On Mon, 22 Feb 2010, Maxim Levitsky wrote: > > > This changes the behavier of MTD_OOB_RAW. It used to read both OOB and data > > to the data buffer, however you would still need to specify the dummy oob buffer. > > > > This is only used in one place, but makes it hard to read data+oob without ECC > > test, thus I removed that behavier, and fixed the user. > > > > Now MTD_OOB_RAW behaves just like MTD_OOB_PLACE, but doesn't do ECC validation > > Is this tested against existing user space tools like nanddump ? Can I > still get the raw data from flash ?
Thats the point. Userspace doesn't/can't use that mode. It is not exposed through mtdchar. Userspace reads the page, and then reads the oob.
It does use MTD_OOB_RAW, but without data buffer, and this path I don't change.
The only user of this, is the nand itself, when it reads bad block table.
I confess that I didn't run test that I ported this code correctly. But I did logically verified many times that the new code works just like old one.
Best regards, Maxim Levitsky
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