From: Miquel RAYNAL <miquel.raynal@free-electrons.com>
To: "Sean Nyekjær" <sean.nyekjaer@prevas.dk>
Cc: ezequiel.garcia@free-electrons.com,
linux-mtd@lists.infradead.org,
"Kasper Revsbech (KREV)" <krev@triax.com>
Subject: Re: [BUG] pxa3xx: wait time out when scanning for bb
Date: Tue, 28 Nov 2017 14:30:55 +0100 [thread overview]
Message-ID: <20171128143055.1ff22979@xps13> (raw)
In-Reply-To: <dd07aafc-0d23-e00a-4996-cd233f8a9065@prevas.dk>
Hi Sean,
> > Also, what kernel are you using ?
> 4.14.0 :-)
Good !
> [ 2.288684] pxa3xx-nand f10d0000.flash: This platform can't do DMA
> on this device
FYI, this is normal, the NAND controller does not have any DMA feature
on Armada 38x (NFCv2).
> [ 2.296924] nand: device found, Manufacturer ID: 0x2c, Chip ID:
> 0xda [ 2.303311] nand: Micron MT29F2G08ABAEAH4
> [ 2.307334] nand: 256 MiB, SLC, erase size: 128 KiB, page size:
> 2048, OOB size: 64
> [ 2.314939] pxa3xx-nand f10d0000.flash: ECC strength 16, ECC step
> size 2048
In theory, Marvell NAND flash controller does support 16-bit strength
per 512 bytes over 2048 bytes pages. However, this controller driver
(pxa3xx_nand) does not. See [1] for the supported configurations.
The ECC strength shown here is probably the best to use with this type
of NAND device but I suggest you try with 4b/512B by using these two
properties like in [2]:
nand-ecc-strength = <4>;
nand-ecc-step-size = <512>;
Thanks,
Miquèl
[1]
http://elixir.free-electrons.com/linux/v4.14/source/drivers/mtd/nand/pxa3xx_nand.c#L1575
[2]
http://elixir.free-electrons.com/linux/v4.14/source/arch/arm/boot/dts/armada-385-db-ap.dts#L172
next prev parent reply other threads:[~2017-11-28 13:31 UTC|newest]
Thread overview: 85+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-28 9:12 [BUG] pxa3xx: wait time out when scanning for bb Sean Nyekjær
2017-11-28 13:02 ` Miquel RAYNAL
2017-11-28 13:12 ` Sean Nyekjær
2017-11-28 13:30 ` Miquel RAYNAL [this message]
2017-11-28 13:42 ` Sean Nyekjær
2017-11-28 14:04 ` Miquel RAYNAL
2017-11-29 7:14 ` Sean Nyekjær
2017-11-29 8:03 ` Miquel RAYNAL
2017-11-30 12:00 ` Sean Nyekjær
2017-11-30 17:18 ` Miquel RAYNAL
2017-11-30 18:13 ` Sean Nyekjær
2017-12-01 8:15 ` Miquel RAYNAL
2017-12-01 8:54 ` Sean Nyekjær
2017-12-07 20:38 ` Miquel RAYNAL
2017-12-08 9:04 ` Sean Nyekjær
2017-12-08 9:21 ` Miquel RAYNAL
2017-12-11 8:25 ` Sean Nyekjær
2017-12-11 8:45 ` Sean Nyekjær
2017-12-11 9:53 ` Miquel RAYNAL
2017-12-11 10:20 ` Sean Nyekjær
2017-12-11 11:35 ` Sean Nyekjær
2017-12-11 13:22 ` Sean Nyekjær
2017-12-11 14:02 ` Miquel RAYNAL
2017-12-11 14:09 ` Miquel RAYNAL
2017-12-11 14:49 ` Boris Brezillon
2017-12-12 8:44 ` Sean Nyekjær
2017-12-12 8:51 ` Miquel RAYNAL
2017-12-12 8:56 ` Sean Nyekjær
2017-12-12 10:12 ` Miquel RAYNAL
2017-12-12 10:55 ` Sean Nyekjær
2017-12-12 11:08 ` Miquel RAYNAL
2017-12-12 11:28 ` Sean Nyekjær
2017-12-12 11:35 ` Miquel RAYNAL
2017-12-12 11:49 ` Sean Nyekjær
2017-12-12 12:47 ` Miquel RAYNAL
2017-12-12 13:09 ` Sean Nyekjær
2017-12-12 13:35 ` Miquel RAYNAL
2017-12-12 18:10 ` Sean Nyekjær
2017-12-12 18:23 ` Miquel RAYNAL
2017-12-13 6:25 ` Sean Nyekjær
2017-12-13 8:41 ` Miquel RAYNAL
2017-12-13 9:31 ` Sean Nyekjær
2017-12-15 17:25 ` Miquel RAYNAL
2017-12-15 18:56 ` Sean Nyekjær
2017-12-15 19:19 ` Miquel RAYNAL
2017-12-17 11:56 ` Sean Nyekjaer
2017-12-17 13:19 ` Boris Brezillon
2017-12-17 21:47 ` Sean Nyekjaer
2017-12-17 22:00 ` Boris Brezillon
2017-12-17 22:15 ` [SPAM] " Sean Nyekjær
2017-12-17 22:19 ` Boris Brezillon
2017-12-17 22:19 ` Miquel RAYNAL
2017-12-18 6:23 ` Sean Nyekjær
2017-12-18 8:56 ` Miquel RAYNAL
2017-12-18 9:26 ` Sean Nyekjær
2017-12-18 9:35 ` Miquel RAYNAL
2017-12-18 10:12 ` Sean Nyekjær
2017-12-18 10:19 ` Miquel RAYNAL
2017-12-18 10:26 ` Sean Nyekjær
2017-12-18 10:45 ` Boris Brezillon
2017-12-18 10:48 ` Sean Nyekjær
2017-12-18 12:43 ` Boris Brezillon
2017-12-18 8:57 ` [SPAM] " Boris Brezillon
2017-12-17 13:48 ` Boris Brezillon
2017-12-11 20:11 ` Miquel RAYNAL
2017-12-09 23:18 ` Ezequiel Garcia
2017-12-10 14:17 ` Miquel RAYNAL
2017-12-11 12:30 ` Ezequiel Garcia
2017-12-11 13:13 ` Miquel RAYNAL
2017-12-11 16:08 ` Ezequiel Garcia
2017-12-11 16:41 ` Miquel RAYNAL
[not found] ` <CAL92e2W7fLjVOWFgH2PpRLRP7Tf5L1vta0jduWm+bTVm647MNQ@mail.gmail.com>
2017-12-11 16:24 ` Ezequiel Garcia
2017-12-11 16:45 ` Boris Brezillon
2017-12-11 21:16 ` Boris Brezillon
2017-12-12 6:01 ` Greg Cook
2017-12-12 7:09 ` Ezequiel Garcia
2017-12-12 7:30 ` Greg Cook
2017-12-12 8:15 ` Boris Brezillon
2017-12-12 16:22 ` Ezequiel Garcia
2017-12-12 6:36 ` Sean Nyekjær
2017-12-12 6:50 ` Ezequiel Garcia
2017-12-12 7:17 ` Greg Cook
2017-12-09 23:04 ` Ezequiel Garcia
2017-12-09 23:22 ` Ezequiel Garcia
2017-12-09 23:24 ` Ezequiel Garcia
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