Hi guys,
This question may be mostly directed to Sandeep Paulraj, the TI
tree maintainer, but is also observed in the mainline...
I've had great success with U-Boot on many ADI BF5xx devices, but I'm
having considerably less fun with the TI DM365.
I've a DM365EVM board - the stock U-Boot binary from the PSP 3.10
distribution from TI works ok, but has no SPI ('sf') support, so I
need to build that in for starters (ultimately we're designing a
custom board with only SPI flash - no NAND).
My problem is that even building the 2009.11 release, the current
mainline revision (ie 2010.02 prerelease), or the u-boot-ti mainline,
the EMAC fails and instantly reboots the board... with no mods made
to U-Boot... just a build out of the box fails this way:
git clone git://git.denx.de/u-boot-ti.git
cd u-boot-ti
make davinci_dm365evm_config
make
...then flash on to my board using the sfh_DM36x.exe utility with the
UBL from the PSP 3.10 distribution... and boot up...
> DM36x initialization passed!
> TI UBL Version: 1.50
> Booting Catalog Boot Loader
> BootMode = NAND
> Starting NAND Copy...
> Valid magicnum, 0xA1ACED66, found in block 0x0000001A.
> DONE
> Jumping to entry point at 0x81080000.
>
> U-Boot 2009.11-00988-g2a6e256 (Feb 23 2010 - 13:50:13)
>
> I2C: ready
> DRAM: 128 MB
> NAND: 2048 MiB
> (snipped out lots of nand BBT details here from this email)
> *** Warning - bad CRC or NAND, using default environment
>
> Net:
> Hit any key to stop autoboot: 0
> DM365 EVM # dhcp
> DM36x initialization passed!
> TI UBL Version: 1.50
> Booting Catalog Boot Loader
As you can see, as soon as I "dhcp", the board is rebooting. The same
happens if I set "ipaddr" and "netmask" then attempt a tftp or ping.
My expectation was that this stuff would work fine out of the box and
clearly isn't for me -- I hope this is just something I'm doing wrong
here and that someone is able to confirm that the code's kosher and
maybe pointers as to what I could have done wrong?
I do notice that the "Net: " line above has no further detail, wheras
the TI PSP binary version says "Ethernet PHY: GENERIC @ 0x00"
(I've not managed to get a 2009.03 build of my own to run on DM365
to compare yet... that's the version TI supplied as binary somehow)
My second question is about the DaVinci SPI flash support in U-Boot.
I've replaced the 64K SPI flash on the DM365EVM with a larger part,
which works just fine from my self-build Linux kernel, so I know the
device itself is fine. All attempts to utilise this from U-Boot
are failing. I realise the SPI DaVinci SPI flash driver is rather
new - wondering what the expectations of this driver are in terms of
stability and testing?
Many thanks for all the great work by everyone on the U-Boot project;
It's certainly been an invaluable asset for us on Blackfin and I hope
we'll be able to get it playing nicely on DaVinci too!
Thanks,
Ian.
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