[U-Boot] Does U-boot supports Spansion S29GL512P NOR Flash?

[prakash bedge <prakash.bedge@gmail.com>]

Hi Frank,Stefan,

Please see bleow error log for I am getting in detecting CFI flash chip.
I am running u-boot from CRAM temporarily.

--------
U-Boot 2009.08 (Apr 01 2010 - 17:32:17)
DRAM:   2 MB
Top of RAM usable for U-Boot at: 00200000
Reserving 175k for U-Boot at: 001d4000
Reserving 1040k for malloc() at: 000d0000
Reserving 128 Bytes for Board Info at: 000cff80
Reserving 56 Bytes for Global Data at: 000cff48
Stack Pointer at: 000cff28
New Stack Pointer is: 000cff28
Now running in RAM - U-Boot at: 001d4000
FLASH: flash detect cfi
fwc addr fc000000 cmd ff ff00 16bit x 8 bit
fwc addr fc000000 cmd f0 f000 16bit x 8 bit
fwc addr fc0000aa cmd 98 9800 16bit x 8 bit
is= cmd 51(Q) addr fc000020 is= ffff 5100
fwc addr fc000aaa cmd 98 9800 16bit x 8 bit
is= cmd 51(Q) addr fc000020 is= ffff 5100
fwc addr fc000000 cmd ff 0000 16bit x 16 bit
fwc addr fc000000 cmd f0 0000 16bit x 16 bit
fwc addr fc0000aa cmd 98 0000 16bit x 16 bit
is= cmd 51(Q) addr fc000020 is= ffff 0000
fwc addr fc000aaa cmd 98 0000 16bit x 16 bit
is= cmd 51(Q) addr fc000020 is= ffff 0000
fwc addr fc000000 cmd ff ff00ff00 32bit x 8 bit
fwc addr fc000000 cmd f0 f000f000 32bit x 8 bit
fwc addr fc000154 cmd 98 98009800 32bit x 8 bit
is= cmd 51(Q) addr fc000040 is= ffffffff 51005100
fwc addr fc001554 cmd 98 98009800 32bit x 8 bit
is= cmd 51(Q) addr fc000040 is= ffffffff 51005100
fwc addr fc000000 cmd ff 00000000 32bit x 16 bit
fwc addr fc000000 cmd f0 00000000 32bit x 16 bit
fwc addr fc000154 cmd 98 00000000 32bit x 16 bit
is= cmd 51(Q) addr fc000040 is= ffffffff 00000000
fwc addr fc001554 cmd 98 00000000 32bit x 16 bit
is= cmd 51(Q) addr fc000040 is= ffffffff 00000000
fwc addr fc000000 cmd ff 00000000 32bit x 32 bit
fwc addr fc000000 cmd f0 00000000 32bit x 32 bit
fwc addr fc000154 cmd 98 00000000 32bit x 32 bit
is= cmd 51(Q) addr fc000040 is= ffffffff 00000000
fwc addr fc001554 cmd 98 00000000 32bit x 32 bit
is= cmd 51(Q) addr fc000040 is= ffffffff 00000000
fwrite addr fc000000 cmd ff ff00ff00ff00ff00 64 bit x 8 bit
fwrite addr fc000000 cmd f0 f000f000f000f000 64 bit x 8 bit
fwrite addr fc0002a8 cmd 98 9800980098009800 64 bit x 8 bit
is= cmd 51(Q) addr fc000080 is= ffffffffffffffff 5100510051005100
fwrite addr fc002aa8 cmd 98 9800980098009800 64 bit x 8 bit
is= cmd 51(Q) addr fc000080 is= ffffffffffffffff 5100510051005100
fwrite addr fc000000 cmd ff 0000000000000000 64 bit x 16 bit
fwrite addr fc000000 cmd f0 0000000000000000 64 bit x 16 bit
fwrite addr fc0002a8 cmd 98 0000000000000000 64 bit x 16 bit
is= cmd 51(Q) addr fc000080 is= ffffffffffffffff 0000000000000000
fwrite addr fc002aa8 cmd 98 0000000000000000 64 bit x 16 bit
is= cmd 51(Q) addr fc000080 is= ffffffffffffffff 0000000000000000
fwrite addr fc000000 cmd ff 0000000000000000 64 bit x 32 bit
fwrite addr fc000000 cmd f0 0000000000000000 64 bit x 32 bit
fwrite addr fc0002a8 cmd 98 0000000000000000 64 bit x 32 bit
is= cmd 51(Q) addr fc000080 is= ffffffffffffffff 0000000000000000
fwrite addr fc002aa8 cmd 98 0000000000000000 64 bit x 32 bit
is= cmd 51(Q) addr fc000080 is= ffffffffffffffff 0000000000000000
fwrite addr fc000000 cmd ff 0000000000000000 64 bit x 64 bit
fwrite addr fc000000 cmd f0 0000000000000000 64 bit x 64 bit
fwrite addr fc0002a8 cmd 98 0000000000000000 64 bit x 64 bit
is= cmd 51(Q) addr fc000080 is= ffffffffffffffff 0000000000000000
fwrite addr fc002aa8 cmd 98 0000000000000000 64 bit x 64 bit
is= cmd 51(Q) addr fc000080 is= ffffffffffffffff 0000000000000000
not found
## Unknown FLASH on Bank 1 - Size = 0x00000000 = 0 MB
flash_protect ON: from 0xFFFC0000 to 0xFFFE81FF
flash_protect ON: from 0xFFFA0000 to 0xFFFBFFFF
*** failed ***
### ERROR ### Please RESET the board ###

--------

>> For slow devices, the memory controller is usually setup to use the GPCM.
Check your options and base registers
>> (OR0 and BR0).
What is GPCM? Which source/header file I need to check for these settings.?

>>You mention different size.. is the port size different too?
I think u-boot takes care of port size as if we do not define the port size
then u-boot search with all possible port size.
BTW how I can cross-check the port size?

For M29W128GH I have to do some code fixup from patch suggested by Stefan.
Is there any special code fixup is required for S29GL512P flash chip
support?

Thanks & Regards,
Prakash


On Fri, Apr 9, 2010 at 6:57 PM, Frank Svendsb?e
<frank.svendsboe@gmail.com>wrote:

> > I am using PPC440x5 Cpu core. How to check the chip-select flash is
> using?
> > Earlier I have run the same code for M29W128GH and it works fine. But
> with
> > S29GL512 it is not working.
> > Now the difference is only in size and write/read timings. So I believe
> it
> > should work in smooth manner.
> >
>
> Hmm.. If you're supposed to boot from this device, then I assume the
> flash is connected to CS0.For slow devices, the memory controller is
> usually setup to use the GPCM. Check your options and base registers
> (OR0 and BR0). Everything related to timing (for GPCM controlled
> devices) is done in these two registers.
>
> If you have a BDI JTAG, you can set these registers using that and try
> to perform flash operations from here. Again, if you can, try to
> access the flash using the JTAG before experimenting with U-Boot.
>
> You mention different size.. is the port size different too?
>
> In order to help you, I think the community needs more info about your
> system. Stefan asked for logs, etc.
>
> Regards,
> Frank
>