Re: [PATCH 3/3] mtd: nand: sunxi: add randomizer support

2015-10-20 Thread Richard Weinberger
On Thu, Oct 15, 2015 at 7:17 PM, Boris Brezillon wrote: > +static const u16 sunxi_nfc_randomizer_page_seeds[] = { > + 0x2b75, 0x0bd0, 0x5ca3, 0x62d1, 0x1c93, 0x07e9, 0x2162, 0x3a72, > + 0x0d67, 0x67f9, 0x1be7, 0x077d, 0x032f, 0x0dac, 0x2716, 0x2436, > + 0x7922, 0x1510, 0x3860, 0x

Re: [PATCH 3/3] mtd: nand: sunxi: add randomizer support

2015-10-16 Thread Boris Brezillon
On Thu, 15 Oct 2015 19:17:23 +0200 Boris Brezillon wrote: > Add support for the randomizer engine available in Allwinner's NFC IP. > > Randomization is useful to support modern NAND chips which are sensible to > repeated patterns. On such NANDs you might experience an unexpectedly high > number

Re: [linux-sunxi] [PATCH 3/3] mtd: nand: sunxi: add randomizer support

2015-10-15 Thread Julian Calaby
Hi Boris, On Fri, Oct 16, 2015 at 4:17 AM, Boris Brezillon wrote: > Add support for the randomizer engine available in Allwinner's NFC IP. > > Randomization is useful to support modern NAND chips which are sensible to Again, did you mean "sensitive" instead of "sensible"? Thanks, -- Julian Ca

[PATCH 3/3] mtd: nand: sunxi: add randomizer support

2015-10-15 Thread Boris Brezillon
Add support for the randomizer engine available in Allwinner's NFC IP. Randomization is useful to support modern NAND chips which are sensible to repeated patterns. On such NANDs you might experience an unexpectedly high number of bitflips when you repeat the same pattern all over a given NAND blo