Re: iMX nand BBT problem

From: "Eric Bénard" <eric@eukrea.com>
To: Sascha Hauer <s.hauer@pengutronix.de>
Cc: barebox@lists.infradead.org
Subject: Re: iMX nand BBT problem
Date: Tue, 2 Jul 2013 10:26:56 +0200	[thread overview]
Message-ID: <20130702102656.17592ec6@e6520eb> (raw)
In-Reply-To: <20130702081413.GE516@pengutronix.de>

Hi Sascha,

Le Tue, 2 Jul 2013 10:14:13 +0200,
Sascha Hauer <s.hauer@pengutronix.de> a écrit :
> On Mon, Jul 01, 2013 at 06:12:34PM +0200, Eric Bénard wrote:
> > Hi,
> > 
> > when upgrading from 2013.05.1 to 2013.06 on an i.MX35 I get the
> > following log :
> > 
> > - initial log :
> > barebox 2013.05.1-00001-ga8e8785 #25 Mon Jul 1 17:12:14 CEST 2013
> > Board: Eukrea CPUIMX35
> > detected i.MX35 revision 2.1
> > netconsole: registered as cs1
> > nand: Manufacturer ID: 0x2c, Chip ID: 0xda (Micron NAND 256MiB 3,3V
> > 8-bit), page size: 2048, OOB size: 64
> > mdio_bus: miibus0: probed
> > imx-ipu-fb imx-ipu-fb: i.MX Framebuffer driver
> > imx-esdhc imx-esdhc0: registered as imx-esdhc0
> > ehci ehci0: USB EHCI 1.00
> > malloc space: 0x87700000 -> 0x87efffff (size 8 MiB)
> > running /env/bin/init...
> > 
> > --> upgrade barebox :
> > barebox 2013.06.0-00001-gf355cf4 #26 Mon Jul 1 17:57:52 CEST 2013
> > Board: Eukrea CPUIMX35
> > detected i.MX35 revision 2.1
> > netconsole: registered as cs1
> > nand: Manufacturer ID: 0x2c, Chip ID: 0xda (Micron NAND 256MiB 3,3V
> > 8-bit), page size: 2048, OOB size: 64 
> > nand: Bad block table not found for chip 0
> > nand: Bad block table not found for chip 0 
> > imx_nand imx_nand: no BBT found. create one using the imx_nand_bbm
> > command
> > mdio_bus: miibus0: probed
> > imx-ipu-fb imx-ipu-fb: i.MX Framebuffer driver
> > imx-esdhc imx-esdhc0: registered as imx-esdhc0
> > ehci ehci0: USB EHCI 1.00
> > malloc space: 0x87700000 -> 0x87efffff (size 8 MiB)
> > envfs: wrong magic on /dev/env0
> > no valid environment found on /dev/env0. Using default environment
> > running /env/bin/init...
> > no MAC address set for eth0. please enter the one found on your board:
> > 00:12:34:56:78:90 saving environment
> > 
> > Once I reset the board I can see that the env was not saved and I get
> > prompted again for the MAC address.
> > 
> > Any idea of what can be wrong there ?
> > 
> > This board is configured in external boot from a 2k NAND (and was
> > already using flash BBT), and the kernel and rootfs still run without
> > any visible problem.
> 
> Are you sure this happens between 2013.05.1 and 2013.06.0? The only
> changes in the mtd stuff are:
> 
> ae6f751 nand_base: sync flash detection functions with linux 3.9's code
> c8af035 Merge branch 'for-next/misc'
> 7c15fd1 NAND: imx: Fix memory leak
> d8ee54f mtd: Nand: Use dev_add_param_bool for erasebad parameter
> 7c6c61f treewide: Use dev_add_param_int_ro where possible
> 973176d mtd: update NAND manufacturer names from the kernel
> 4c2bdc8 nand_base: detect more ONFI flash
> 
> So the only patches which seem to change something are from you ;)
> 
I know and I feared I broke something :-( but I don't see where at the
moment.
I'll spend more time on this and provide more details shortly.

Eric

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