On Fri, 2 Dec 2011, Scott Wood wrote:
> On 12/02/2011 05:19 PM, Robert P. J. Day wrote:
> > and, at this point, i would think that all i need to do is:
> >
> > => bootm 400000
> > ## Booting image at 00400000 ...
> > Image Name: Linux-2.6.37
> > Created: 2011-12-02 23:08:06 UTC
> > Image Type: PowerPC Linux Kernel Image (gzip compressed)
> > Data Size: 1301506 Bytes = 1.2 MB
> > Load Address: 00000000
> > Entry Point: 00000000
> > Verifying Checksum ... OK
> > Uncompressing Kernel Image ... OK
>
> You need to use a cuImage, just as you did with lite5200.
i believe i've solved this issue, at least. i downloaded ELDK 4.2
and installed the ppc_8xx- toolchain. with that, i managed to compile
u-boot 2010.12 and flashed it to my TQM860, reset and, lo and behold,
i have a 2010.12 u-boot. so my u-boot issue seems to be resolved.
> Or update U-Boot and pass a device tree.
>
> > and that's where it hangs.
> >
> > i have no idea if it's still booting properly but i've simply
> > screwed up the serial port setting.
> >
> > does this set of steps look reasonable? the configuration, the
> > building, the TFTP, the verification steps, the "bootm" command? this
> > is what's printed when the board resets:
> >
> > U-Boot 0.4.0 (Apr 13 2004 - 15:01:22)
> >
> > CPU: XPC860xxZPnnD4 at 80 MHz: 16 kB I-Cache 8 kB D-Cache FEC
> > present
> > Board: TQM860LDB0A3-P80.208
> > DRAM: 16 MB
> > FLASH: 8 MB
> > In: serial
> > Out: serial
> > Err: serial
> > Net: SCC ETHERNET [PRIME], FEC ETHERNET
> > PCMCIA: No Card found
> >
> > am i just missing something obvious? what should i use for the
> > kernel console setting? i'm open to suggestions.
>
> console=ttyCPM0
ok, i'm still having trouble getting a bootable kernel so here's
what i did. using 2.6.37 version of kernel source, i followed your
advice and first just configured for the 860 with:
$ make ARCH=powerpc tqm8xx_defconfig
then
$ make ARCH=powerpc uImage
which generated a uImage file. but as i understand it, i want a
cuImage-format file as i used with my lite5200, so i edited the file
arch/powerpc/boot/wrapper (as you suggested) and made the following
change:
case "$platform" in
*-mpc866ads|*-mpc885ads|*-adder875*|*-ep88xc|*-tqm8xx)
^^^^^^^^^ added
which now allows me to do the following:
$ make ARCH=powerpc cuImage.tqm8xx
and it's my understanding that this is the file i'll TFTP down to the
TQM860 board and boot, correct?
here's a look at that file:
$ mkimage -l /var/lib/tftpboot/cuImage.tqm8xx
Image Name: Linux-2.6.37
Created: Sun Dec 4 20:51:56 2011
Image Type: PowerPC Linux Kernel Image (gzip compressed)
Data Size: 1258640 Bytes = 1229.14 kB = 1.20 MB
Load Address: 0x00400000
Entry Point: 0x0040055C
$
look reasonable? so i download to the board to address 200000,
check it:
=> imi 200000
## Checking Image at 00200000 ...
Legacy image found
Image Name: Linux-2.6.37
Created: 2011-12-05 1:51:56 UTC
Image Type: PowerPC Linux Kernel Image (gzip compressed)
Data Size: 1258640 Bytes = 1.2 MiB
Load Address: 00400000
Entry Point: 0040055c
Verifying Checksum ... OK
=>
but at this point, any attempt to "bootm 200000" gives me (as before):
## Booting kernel from Legacy Image at 00200000 ...
Image Name: Linux-2.6.37
Created: 2011-12-05 1:51:56 UTC
Image Type: PowerPC Linux Kernel Image (gzip compressed)
Data Size: 1258640 Bytes = 1.2 MiB
Load Address: 00400000
Entry Point: 0040055c
Verifying Checksum ... OK
Uncompressing Kernel Image ... OK
immediately followed by a long line of diamonds with question marks
inside them. i would assume i've just screwed up the console setting,
but i've tried various combinations of tty0, ttyS0 and ttyCPM0, with
different baud rates. any hint as to what i should be looking at?
i suspect i'm close, i just have this last issue to deal with.
thanks.
rday
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