iMX nand BBT problem

iMX nand BBT problem

[Eric Bénard]

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.

Eric

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Re: iMX nand BBT problem

[Sascha Hauer]

HI Eric,

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 ;)

Does the 'md' command still work and shows meaningful content in the
NAND?

Sascha

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Re[2]: iMX nand BBT problem

[Alexander Shiyan]

> 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 ;)
> 
> Does the 'md' command still work and shows meaningful content in the
> NAND?

I think the best way here is using "git-bisect" to find this issue.

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Re: iMX nand BBT problem

[Eric Bénard]

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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