Re: [PATCH 19/39] mtd: nand: denali: perform erased check against raw transferred page

2016-11-30 Thread Boris Brezillon
On Wed, 30 Nov 2016 14:36:13 +0900 Masahiro Yamada wrote: > Hi Boris > > > 2016-11-28 1:12 GMT+09:00 Boris Brezillon > : > > On Sun, 27 Nov 2016 03:06:05 +0900 > > Masahiro Yamada wrote: > > > >> The erased page check must be done against the raw transferred data. > >> The current first cal

Re: [PATCH 19/39] mtd: nand: denali: perform erased check against raw transferred page

2016-11-29 Thread Masahiro Yamada
Hi Boris 2016-11-28 1:12 GMT+09:00 Boris Brezillon : > On Sun, 27 Nov 2016 03:06:05 +0900 > Masahiro Yamada wrote: > >> The erased page check must be done against the raw transferred data. >> The current first call of is_erase() is against the data after ECC >> correction. I saw cases where not

Re: [PATCH 19/39] mtd: nand: denali: perform erased check against raw transferred page

2016-11-27 Thread Boris Brezillon
On Sun, 27 Nov 2016 03:06:05 +0900 Masahiro Yamada wrote: > The erased page check must be done against the raw transferred data. > The current first call of is_erase() is against the data after ECC > correction. I saw cases where not all of the data in the page are > 0xFF after they are manipula

[PATCH 19/39] mtd: nand: denali: perform erased check against raw transferred page

2016-11-26 Thread Masahiro Yamada
The erased page check must be done against the raw transferred data. The current first call of is_erase() is against the data after ECC correction. I saw cases where not all of the data in the page are 0xFF after they are manipulated by the ECC correction engine. Signed-off-by: Masahiro Yamada -