Re: [PATCH] ARM: BCM5301X: Fix NAND ECC parameters for Linksys Panamera

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Hi Florian,

On Mon, Mar 12, 2018 at 03:52:27PM -0700, Florian Fainelli wrote:
> On 03/11/2018 03:03 AM, Vivek Unune wrote:
> > Hi Rafał,
> > 
> > On Sat, Mar 10, 2018 at 10:41:04PM +0100, Rafał Miłecki wrote:
> >> On 10 March 2018 at 18:12, Vivek Unune <npcomplete13@xxxxxxxxx> wrote:
> >>> Using BCH8 gives ecc errors and makes the router unsuable.
> >>> Switching to BCH1 fixes these errors.
> >>
> >> Can you provide CFE's log messages starting with
> >> "Decompressing...done" and up to the "Press Ctrl+C to stop in CFE"
> >> please? I'd like to see what NAND info CFE prints there.
> > 
> > See below. It does say BCH-8, however I can't get it to work.
> > 
> > CFE log:
> > 
> > Decompressing...done
> > Found a Toshiba NAND flash:
> > Total size:  128MB
> > Block size:  128KB
> > Page Size:   2048B
> > OOB Size:    64B
> > Sector size: 512B
> > Spare size:  16B
> > ECC level:   8 (8-bit)
> > Device ID: 0x98 0xf1 0x80 0x15 0xf2 0x16
> > find_devinfo: devinfo block found at 0x00180000!
> > 
> > Press Ctrl+C to stop in CFE
> 
> What kind of error are you getting in Linux with BCH-8?

See below:

[   12.941850] Generic PHY dsa-1.0:03: attached PHY driver [Generic PHY] (mii_bus:phy_addr=dsa-1.0:03, irq=POLL)
[   12.991851] Generic PHY dsa-1.0:04: attached PHY driver [Generic PHY] (mii_bus:phy_addr=dsa-1.0:04, irq=POLL)
[   13.032404] UBI: auto-attach mtd5
[   13.035731] ubi0: attaching mtd5
[   13.115701] ubi0 warning: 0xc037c9e4: error -74 (ECC error) while reading 64 bytes from PEB 113:0, read only 64 bytes, retry
[   13.127630] ubi0 warning: 0xc037c9e4: error -74 (ECC error) while reading 64 bytes from PEB 113:0, read only 64 bytes, retry
[   13.139524] ubi0 warning: 0xc037c9e4: error -74 (ECC error) while reading 64 bytes from PEB 113:0, read only 64 bytes, retry
[   13.151419] ubi0 error: 0xc037ca08: error -74 (ECC error) while reading 64 bytes from PEB 113:0, read 64 bytes
[   13.161448] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 4.14.25 #0
[   13.167460] Hardware name: BCM5301X
[   13.170951] Backtrace:
[   13.173398] Function entered at [<c0105ccc>] from [<c0105fb4>]
[   13.179240]  r7:00000000 r6:60000013 r5:00000000 r4:c081d988
[   13.184903] Function entered at [<c0105f9c>] from [<c04f29a8>]
[   13.190744] Function entered at [<c04f2918>] from [<c037ca0c>]
[   13.196586]  r7:00000000 r6:00000040 r5:c7954000 r4:ffffffb6
[   13.202251] Function entered at [<c037c7dc>] from [<c037cd1c>]
[   13.208095]  r10:00000000 r9:00000040 r8:00000071 r7:c7954000 r6:c7979000 r5:c7036180
[   13.215941]  r4:c7b72900
[   13.218475] Function entered at [<c037cca4>] from [<c0381c5c>]
[   13.224318]  r10:00000000 r9:c7979800 r8:c7954000 r7:c7979000 r6:00000071 r5:c7036180
[   13.232157]  r4:c7b72900
[   13.234690] Function entered at [<c0381a84>] from [<c0376d74>]
[   13.240534]  r10:c7954040 r9:00000840 r8:c702e400 r7:00000000 r6:c702e400 r5:c7954000
[   13.248381]  r4:fffff800
[   13.250914] Function entered at [<c0376720>] from [<c0717b9c>]
[   13.256759]  r10:c0813a88 r9:c0651c18 r8:c0651bec r7:c084ff48 r6:c081e440 r5:c7823ea4
[   13.264605]  r4:c702e400
[   13.267139] Function entered at [<c0717954>] from [<c0101a8c>]
[   13.272983]  r10:c072e83c r9:c07366b8 r8:c0717954 r7:c072e838 r6:c081e440 r5:00000000
[   13.280830]  r4:c0803c08
[   13.283363] Function entered at [<c01019dc>] from [<c0700e38>]
[   13.289206]  r9:c07366b8 r8:c0700594 r7:c072e838 r6:c081e440 r5:c081e440 r4:00000008
[   13.296958] Function entered at [<c0700cf8>] from [<c0506adc>]
[   13.302802]  r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:c0506acc
[   13.310641]  r4:00000000
[   13.313175] Function entered at [<c0506acc>] from [<c0102788>]
[   13.319015]  r5:c0506acc r4:00000000
[   13.323289] ubi0 warning: 0xc037c9e4: error -74 (ECC error) while reading 64 bytes from PEB 114:0, read only 64 bytes, retry
[   13.335178] ubi0 warning: 0xc037c9e4: error -74 (ECC error) while reading 64 bytes from PEB 114:0, read only 64 bytes, retry
[   13.347066] ubi0 warning: 0xc037c9e4: error -74 (ECC error) while reading 64 bytes from PEB 114:0, read only 64 bytes, retry
[   13.358956] ubi0 error: 0xc037ca08: error -74 (ECC error) while reading 64 bytes from PEB 114:0, read 64 bytes
[   13.368989] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 4.14.25 #0
[   13.375007] Hardware name: BCM5301X
[   13.378496] Backtrace:
[   13.380943] Function entered at [<c0105ccc>] from [<c0105fb4>]
[   13.386787]  r7:00000000 r6:60000013 r5:00000000 r4:c081d988
[   13.392450] Function entered at [<c0105f9c>] from [<c04f29a8>]
[   13.398291] Function entered at [<c04f2918>] from [<c037ca0c>]
[   13.404133]  r7:00000000 r6:00000040 r5:c7954000 r4:ffffffb6
[   13.409797] Function entered at [<c037c7dc>] from [<c037cd1c>]
[   13.415641]  r10:00000000 r9:00000040 r8:00000072 r7:c7954000 r6:c7979000 r5:c7036180
[   13.423488]  r4:c7b72900
[   13.426021] Function entered at [<c037cca4>] from [<c0381c5c>]
[   13.431865]  r10:00000000 r9:c7979800 r8:c7954000 r7:c7979000 r6:00000072 r5:c7036180
[   13.439704]  r4:c7b72900
[   13.442237] Function entered at [<c0381a84>] from [<c0376d74>]
[   13.448081]  r10:c7954040 r9:00000840 r8:c702e400 r7:00000000 r6:c702e400 r5:c7954000
[   13.455928]  r4:fffff800
[   13.458461] Function entered at [<c0376720>] from [<c0717b9c>]
[   13.464305]  r10:c0813a88 r9:c0651c18 r8:c0651bec r7:c084ff48 r6:c081e440 r5:c7823ea4
[   13.472152]  r4:c702e400
[   13.474685] Function entered at [<c0717954>] from [<c0101a8c>]
[   13.480529]  r10:c072e83c r9:c07366b8 r8:c0717954 r7:c072e838 r6:c081e440 r5:00000000
[   13.488376]  r4:c0803c08
[   13.490909] Function entered at [<c01019dc>] from [<c0700e38>]
[   13.496754]  r9:c07366b8 r8:c0700594 r7:c072e838 r6:c081e440 r5:c081e440 r4:00000008
[   13.504514] Function entered at [<c0700cf8>] from [<c0506adc>]
[   13.510358]  r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:c0506acc
[   13.518197]  r4:00000000
[   13.520730] Function entered at [<c0506acc>] from [<c0102788>]
[   13.526570]  r5:c0506acc r4:00000000
[   13.530863] ubi0 warning: 0xc037c9e4: error -74 (ECC error) while reading 64 bytes from PEB 115:0, read only 64 bytes, retry
[   13.542763] ubi0 warning: 0xc037c9e4: error -74 (ECC error) while reading 64 bytes from PEB 115:0, read only 64 bytes, retry
[   13.554659] ubi0 warning: 0xc037c9e4: error -74 (ECC error) while reading 64 bytes from PEB 115:0, read only 64 bytes, retry
[   13.566548] ubi0 error: 0xc037ca08: error -74 (ECC error) while reading 64 bytes from PEB 115:0, read 64 bytes
[   13.576574] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.14.25 #0
[   13.582589] Hardware name: BCM5301X
[   13.586078] Backtrace:
[   13.588526] Function entered at [<c0105ccc>] from [<c0105fb4>]
[   13.594368]  r7:00000000 r6:60000013 r5:00000000 r4:c081d988
[   13.600032] Function entered at [<c0105f9c>] from [<c04f29a8>]
[   13.605872] Function entered at [<c04f2918>] from [<c037ca0c>]
[   13.611714]  r7:00000000 r6:00000040 r5:c7954000 r4:ffffffb6
[   13.617378] Function entered at [<c037c7dc>] from [<c037cd1c>]
[   13.623223]  r10:00000000 r9:00000040 r8:00000073 r7:c7954000 r6:c7979000 r5:c7036180
[   13.631071]  r4:c7b72900
[   13.633604] Function entered at [<c037cca4>] from [<c0381c5c>]
[   13.639447]  r10:00000000 r9:c7979800 r8:c7954000 r7:c7979000 r6:00000073 r5:c7036180
[   13.647286]  r4:c7b72900
[   13.649819] Function entered at [<c0381a84>] from [<c0376d74>]
[   13.655663]  r10:c7954040 r9:00000840 r8:c702e400 r7:00000000 r6:c702e400 r5:c7954000
[   13.663510]  r4:fffff800
[   13.666042] Function entered at [<c0376720>] from [<c0717b9c>]
[   13.671886]  r10:c0813a88 r9:c0651c18 r8:c0651bec r7:c084ff48 r6:c081e440 r5:c7823ea4
[   13.679725]  r4:c702e400
[   13.682258] Function entered at [<c0717954>] from [<c0101a8c>]
[   13.688103]  r10:c072e83c r9:c07366b8 r8:c0717954 r7:c072e838 r6:c081e440 r5:00000000
[   13.695949]  r4:c0803c08
[   13.698482] Function entered at [<c01019dc>] from [<c0700e38>]
[   13.704327]  r9:c07366b8 r8:c0700594 r7:c072e838 r6:c081e440 r5:c081e440 r4:00000008
[   13.712087] Function entered at [<c0700cf8>] from [<c0506adc>]
[   13.717930]  r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:c0506acc
[   13.725769]  r4:00000000
[   13.728303] Function entered at [<c0506acc>] from [<c0102788>]
[   13.734144]  r5:c0506acc r4:00000000
[   13.738425] ubi0 warning: 0xc037c9e4: error -74 (ECC error) while reading 64 bytes from PEB 116:0, read only 64 bytes, retry
[   13.750319] ubi0 warning: 0xc037c9e4: error -74 (ECC error) while reading 64 bytes from PEB 116:0, read only 64 bytes, retry
[   13.762213] ubi0 warning: 0xc037c9e4: error -74 (ECC error) while reading 64 bytes from PEB 116:0, read only 64 bytes, retry
[   13.774103] ubi0 error: 0xc037ca08: error -74 (ECC error) while reading 64 bytes from PEB 116:0, read 64 bytes
[   13.784130] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.14.25 #0

Thanks,

Vivek
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