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SubjectRe: [PATCH] ARM: BCM5301X: Fix NAND ECC parameters for Linksys Panamera
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@gmail.com> 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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