Hi On Fri, Jun 14, 2019 at 3:33 AM Jeff Kletsky <lede@xxxxxxxxxxxx> wrote: > [...] > Examining supported chips with similar OOB layouts with multiple > sections then an "additional" area, such as the GigaDevice GD5FxGQ4xA, > was not terribly insightful. The GD5F1GQ4UAY datasheet[2] marks the > upper 64-byte region as "reserved", in contrast to "User meta data" > and it is not described in the current `gigadevice.c`[3]. As such, > it isn't convincing evidence that it was omitted as "not required", > because it was marked "reserved", or perhaps for some other reason. > > > As a side note, the datasheet also marks the first byte of each region > as "reserved", which is not reflected in the current `gigadevice.c`, > which includes it in the free region for sections 1-3. The datasheet I found back then marked the first byte as "reserved for bad block mark" and the first 4 bytes of other regions are marked as "user meta data 1". And I wrote the ecc region code accordingly. I've put the one I found in the attachment. Regards, Chuanhong Guo
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GD5F1GQ4UAYIG.pdf
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