Re: [PATCH] mtd: brcmnand: Workaround false ECC uncorrectable errors

From	Brian Norris <computersforpeace@gmail.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH] mtd: brcmnand: Workaround false ECC uncorrectable errors
Date	2015-12-02 22:10 +0100
Message-ID	<qBmP1-47N-25@gated-at.bofh.it> (permalink)
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On Wed, Dec 02, 2015 at 12:54:15PM -0800, Brian Norris wrote:
> BTW, I think Kamal had code to handle protecting bitflips in erased
> pages code in the Broadcom STB Linux BSP. Perhaps he can port that to
> upstream with nand_check_erased_ecc_chunk()? IIUC, that would probably
> handle your case too, Simon, although it wouldn't be optimal for an
> all-0xff check (i.e., bitflip_threshold == 0).

I think this was for BCH only, actually. Hamming wasn't used as much on
STB. So the above would only help part of this patch. I'm less sure of
the behavior for the Hamming engine.

Brian
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Thread

Re: [PATCH] mtd: brcmnand: Workaround false ECC uncorrectable errors Jonas Gorski <jogo@openwrt.org> - 2015-12-01 11:50 +0100
  Re: [PATCH] mtd: brcmnand: Workaround false ECC uncorrectable errors Simon Arlott <simon@fire.lp0.eu> - 2015-12-02 21:20 +0100
    Re: [PATCH] mtd: brcmnand: Workaround false ECC uncorrectable errors Jonas Gorski <jogo@openwrt.org> - 2015-12-02 21:50 +0100
      Re: [PATCH] mtd: brcmnand: Workaround false ECC uncorrectable errors Brian Norris <computersforpeace@gmail.com> - 2015-12-02 22:00 +0100
        Re: [PATCH] mtd: brcmnand: Workaround false ECC uncorrectable errors Brian Norris <computersforpeace@gmail.com> - 2015-12-02 22:10 +0100
        Re: [PATCH] mtd: brcmnand: Workaround false ECC uncorrectable errors Jonas Gorski <jogo@openwrt.org> - 2015-12-02 22:10 +0100
          Re: [PATCH] mtd: brcmnand: Workaround false ECC uncorrectable errors Simon Arlott <simon@fire.lp0.eu> - 2015-12-02 22:40 +0100
          Re: [PATCH] mtd: brcmnand: Workaround false ECC uncorrectable errors Brian Norris <computersforpeace@gmail.com> - 2015-12-02 23:30 +0100

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