Le 18.05.2010 13:12, Koen Kooi a écrit :
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On 18-05-10 10:10, Christophe Aeschlimann wrote:
Le 18.05.2010 09:30, Koen Kooi a écrit :
On 18-05-10 09:27, Christophe Aeschlimann wrote:
Hi,
We are at least three hawkboard owners that have the same issue.
Building org.openembedded.dev HEAD with
MACHINE= "hawkboard"
DISTRO = "angstrom-2008.1"
produces a Kernel Image that cannot be booted on our hawkboards.
The behaviour is the following with the following kernel bootargs :
console=ttyS2,115200n8 root=/dev/nfs
nfsroot=172.16.147.10:/srv/nfs/hawkboard ip=172.16.100.100
eth=0a:c1:a8:12:fa:c0
U-Boot 2009.01-dirty (Nov 26 2009 - 02:15:00)
Try the OE built u-boot.
Hi Koen,
I haven't been able to boot using the OE generated u-boot so far.
But I'm a bit confused about how everything is working together.
Don't you have to generate an AIS image using AISGen and the OE
generated u-boot image before flashing it in the UBL partition
(beginning of the second erase block) ?
Not that I know of. I flashed uboot using tftp and that seemed to work
fine. That was on a prototype hawkboard which has released it magic
smoke since then.
Ok then I assume you had a pre-installed working UBL (User Boot Loader)
in NAND @ Block 1 (0-indexed), that would initialize the board HW (EMIFA
timings, SDRAM refresh cycles, etc) load block 2 in memory (U-Boot)and
executes it. Then you could just overwrite the U-Boot NAND partition
using U-Boot tftp and nand erase / write.e commands.
But AFAIU if you don't have an UBL (E.G. because you don't have a CCS
license to modify/rebuild it) you can workaround it by using the AIS
generator that generate a "self-bootable" image. In this case we want
the OMAP-L138 RBL (ROM Bootloader) to read the AIS image from NAND (@
block 1, where the UBL is normally stored) configure the HW and start
executing U-Boot.
Does this tell you anything ?
Regards,
Christophe
regards,
Koen
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