Re: [PATCH] mtd: rawnand: denali: add DT property to specify skipped bytes in OOB

2018-09-23 Thread Miquel Raynal
Hi Masahiro, Masahiro Yamada wrote on Sun, 23 Sep 2018 06:38:40 -0400: > 2018-09-22 4:11 GMT-04:00 Boris Brezillon : > > On Sat, 22 Sep 2018 09:41:11 +0200 > > Miquel Raynal wrote: > > > >> Hi Masahiro, > >> > >> Masahiro Yamada wrote on Sat, 8 Sep > >> 2018 01:10:25 +0900: > >> > >> > Hi

Re: [PATCH] mtd: rawnand: denali: add DT property to specify skipped bytes in OOB

2018-09-23 Thread Masahiro Yamada
2018-09-22 4:11 GMT-04:00 Boris Brezillon : > On Sat, 22 Sep 2018 09:41:11 +0200 > Miquel Raynal wrote: > >> Hi Masahiro, >> >> Masahiro Yamada wrote on Sat, 8 Sep >> 2018 01:10:25 +0900: >> >> > Hi Boris, >> > >> > 2018-09-07 23:53 GMT+09:00 Boris Brezillon : >> > > On Fri, 7 Sep 2018 23:42:53 +

Re: [PATCH] mtd: rawnand: denali: add DT property to specify skipped bytes in OOB

2018-09-22 Thread Boris Brezillon
On Sat, 22 Sep 2018 09:41:11 +0200 Miquel Raynal wrote: > Hi Masahiro, > > Masahiro Yamada wrote on Sat, 8 Sep > 2018 01:10:25 +0900: > > > Hi Boris, > > > > 2018-09-07 23:53 GMT+09:00 Boris Brezillon : > > > On Fri, 7 Sep 2018 23:42:53 +0900 > > > Masahiro Yamada wrote: > > > > > >> H

Re: [PATCH] mtd: rawnand: denali: add DT property to specify skipped bytes in OOB

2018-09-22 Thread Miquel Raynal
Hi Masahiro, Masahiro Yamada wrote on Sat, 8 Sep 2018 01:10:25 +0900: > Hi Boris, > > 2018-09-07 23:53 GMT+09:00 Boris Brezillon : > > On Fri, 7 Sep 2018 23:42:53 +0900 > > Masahiro Yamada wrote: > > > >> Hi Boris, > >> > >> 2018-09-07 23:08 GMT+09:00 Boris Brezillon : > >> > Hi Masahiro,

Re: [PATCH] mtd: rawnand: denali: add DT property to specify skipped bytes in OOB

2018-09-07 Thread Masahiro Yamada
Hi Boris, 2018-09-07 23:53 GMT+09:00 Boris Brezillon : > On Fri, 7 Sep 2018 23:42:53 +0900 > Masahiro Yamada wrote: > >> Hi Boris, >> >> 2018-09-07 23:08 GMT+09:00 Boris Brezillon : >> > Hi Masahiro, >> > >> > On Fri, 7 Sep 2018 19:56:23 +0900 >> > Masahiro Yamada wrote: >> > >> >> NAND devices

Re: [PATCH] mtd: rawnand: denali: add DT property to specify skipped bytes in OOB

2018-09-07 Thread Boris Brezillon
On Fri, 7 Sep 2018 23:42:53 +0900 Masahiro Yamada wrote: > Hi Boris, > > 2018-09-07 23:08 GMT+09:00 Boris Brezillon : > > Hi Masahiro, > > > > On Fri, 7 Sep 2018 19:56:23 +0900 > > Masahiro Yamada wrote: > > > >> NAND devices need additional data area (OOB) for error correction, > >> but it

Re: [PATCH] mtd: rawnand: denali: add DT property to specify skipped bytes in OOB

2018-09-07 Thread Masahiro Yamada
Hi Boris, 2018-09-07 23:08 GMT+09:00 Boris Brezillon : > Hi Masahiro, > > On Fri, 7 Sep 2018 19:56:23 +0900 > Masahiro Yamada wrote: > >> NAND devices need additional data area (OOB) for error correction, >> but it is also used for Bad Block Marker (BBM). In many cases, the >> first byte in OOB

Re: [PATCH] mtd: rawnand: denali: add DT property to specify skipped bytes in OOB

2018-09-07 Thread Boris Brezillon
Hi Masahiro, On Fri, 7 Sep 2018 19:56:23 +0900 Masahiro Yamada wrote: > NAND devices need additional data area (OOB) for error correction, > but it is also used for Bad Block Marker (BBM). In many cases, the > first byte in OOB is used for BBM, but the location actually depends > on chip vendo

[PATCH] mtd: rawnand: denali: add DT property to specify skipped bytes in OOB

2018-09-07 Thread Masahiro Yamada
NAND devices need additional data area (OOB) for error correction, but it is also used for Bad Block Marker (BBM). In many cases, the first byte in OOB is used for BBM, but the location actually depends on chip vendors. The NAND controller should preserve the precious BBM to keep track of bad blo