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From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
To: arno@natisbad.org (Arnaud Ebalard)
Cc: Lior Amsalem <alior@marvell.com>,
	linux-mtd@lists.infradead.org,
	Ezequiel Garcia <ezequiel.garcia@free-electrons.com>,
	Gregory Clement <gregory.clement@free-electrons.com>,
	Brian Norris <computersforpeace@gmail.com>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v5 00/14] Armada 370/XP NAND support
Date: Sun, 24 Nov 2013 15:22:39 +0100	[thread overview]
Message-ID: <20131124152239.01777cf9@skate> (raw)
In-Reply-To: <87d2lp28pd.fsf@natisbad.org>

Dear Arnaud Ebalard,

On Sun, 24 Nov 2013 15:08:46 +0100, Arnaud Ebalard wrote:

> [   80.189852] pxa3xx-nand d00d0000.nand: This platform can't do DMA on this device
> [   80.197454] NAND device: Manufacturer ID: 0xad, Chip ID: 0xf1 (Hynix H27U1G8F2BTR-BC)
> [   80.205308] NAND device: 128MiB, SLC, page size: 2048, OOB size: 64
> [   80.211594] pxa3xx-nand d00d0000.nand: ECC strength 1 at page size 2048 is not supported
> [   80.219699] pxa3xx-nand d00d0000.nand: failed to scan nand at cs 0

[...]

> i.e. return 0 because it does not support page size and strength of the
> chip. I also guess this works fine on the Armada mirabox and XP GP
> boards you have which both include a 1GB NAND flash w/ higher page size
> and ECC strength.

Right, that's correct. Ezequiel will expand on this, but we
intentionally excluded the cases we couldn't test, such as 2048 bytes
page size.

> I wonder if you could extend your support support to lower page size and
> strength. I'd be happy to test it on a 370 and XP based platfom.

We were just waiting for people to have practical cases that we can
test, so I'm sure Ezequiel will provide patches to support 2048 bytes
page size.

Thanks for your testing, very useful!

Best regards,

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

  reply	other threads:[~2013-11-24 14:22 UTC|newest]

Thread overview: 61+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-11-14 21:25 [PATCH v5 00/14] Armada 370/XP NAND support Ezequiel Garcia
2013-11-14 21:25 ` [PATCH v5 01/14] mtd: nand: pxa3xx: Use a completion to signal device ready Ezequiel Garcia
2013-11-14 21:25 ` [PATCH v5 02/14] mtd: nand: pxa3xx: Use waitfunc() to wait for the device to be ready Ezequiel Garcia
2013-11-14 21:25 ` [PATCH v5 03/14] mtd: nand: pxa3xx: Add bad block handling Ezequiel Garcia
2013-11-14 22:12   ` Brian Norris
2013-11-14 22:37     ` Ezequiel Garcia
2013-11-14 21:25 ` [PATCH v5 04/14] mtd: nand: pxa3xx: Add driver-specific ECC BCH support Ezequiel Garcia
2013-11-14 21:25 ` [PATCH v5 05/14] mtd: nand: pxa3xx: Clear cmd buffer #3 (NDCB3) on command start Ezequiel Garcia
2013-11-14 22:18   ` Brian Norris
2013-11-14 21:25 ` [PATCH v5 06/14] mtd: nand: pxa3xx: Add helper function to set page address Ezequiel Garcia
2013-11-14 21:25 ` [PATCH v5 07/14] mtd: nand: pxa3xx: Remove READ0 switch/case falltrough Ezequiel Garcia
2013-11-14 21:25 ` [PATCH v5 08/14] mtd: nand: pxa3xx: Split prepare_command_pool() in two stages Ezequiel Garcia
2013-11-14 21:25 ` [PATCH v5 09/14] mtd: nand: pxa3xx: Move the data buffer clean to prepare_start_command() Ezequiel Garcia
2013-11-14 22:25   ` Brian Norris
2013-11-14 22:45     ` Ezequiel Garcia
2013-11-14 21:25 ` [PATCH v5 10/14] mtd: nand: pxa3xx: Fix SEQIN column address set Ezequiel Garcia
2013-11-14 21:25 ` [PATCH v5 11/14] mtd: nand: pxa3xx: Add a read/write buffers markers Ezequiel Garcia
2013-11-14 21:25 ` [PATCH v5 12/14] mtd: nand: pxa3xx: Introduce multiple page I/O support Ezequiel Garcia
2013-11-14 22:40   ` Brian Norris
2013-11-14 23:02     ` Ezequiel Garcia
2013-11-14 23:07       ` Brian Norris
2013-11-14 21:25 ` [PATCH v5 13/14] mtd: nand: pxa3xx: Add multiple chunk write support Ezequiel Garcia
2013-11-14 21:25 ` [PATCH v5 14/14] mtd: nand: pxa3xx: Add ECC BCH correctable errors detection Ezequiel Garcia
2013-11-14 23:04 ` [PATCH v5 00/14] Armada 370/XP NAND support Brian Norris
2013-11-14 23:05   ` Brian Norris
2013-11-14 23:15     ` Ezequiel Garcia
2013-11-14 23:17       ` Brian Norris
2013-11-15  7:59       ` Daniel Mack
2013-11-15 13:07         ` Ezequiel Garcia
2013-11-15 13:47           ` Daniel Mack
2013-11-15 14:27             ` Ezequiel Garcia
2013-11-15 14:30               ` Daniel Mack
2013-11-15 18:05                 ` Brian Norris
2013-11-15 18:35                   ` Ezequiel Garcia
2013-11-24 14:08 ` Arnaud Ebalard
2013-11-24 14:22   ` Thomas Petazzoni [this message]
2013-11-25 12:03   ` Ezequiel Garcia
2013-11-25 23:04     ` Arnaud Ebalard
2013-11-26 12:40       ` Ezequiel Garcia
2013-11-27 20:24         ` Arnaud Ebalard
2013-11-27 20:52           ` Arnaud Ebalard
2013-11-28  7:48             ` Ricard Wanderlof
2013-11-28 18:50             ` Ezequiel Garcia
2013-11-29 23:25               ` Arnaud Ebalard
2013-12-02 10:33                 ` Ezequiel Garcia
2013-12-02 21:05                   ` Arnaud Ebalard
2013-12-03  0:22                     ` Ezequiel Garcia
2013-12-03 20:21                       ` Arnaud Ebalard
2013-12-03 21:25                         ` Arnaud Ebalard
2013-12-04 14:20                           ` Ezequiel Garcia
2013-12-04 14:41                             ` Ezequiel Garcia
2013-12-04 20:48                             ` Arnaud Ebalard
2013-12-05 20:42                               ` Arnaud Ebalard
2013-12-05 22:24                                 ` [PATCH v5 00/14] Armada 370/XP NAND supportg Ezequiel Garcia
2013-12-06 12:56                                 ` [PATCH v5 00/14] Armada 370/XP NAND support Ezequiel Garcia
2013-12-06 21:41                                   ` Arnaud Ebalard
2013-12-06 22:05                                     ` Ezequiel Garcia
2013-12-05 21:32                               ` Brian Norris
2013-12-05 21:23                       ` Brian Norris
2013-12-05 22:23                         ` Ezequiel Garcia
2013-12-05 22:45                           ` Brian Norris

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