[coreboot] [PATCH] First support for HP DL145 G3

[Mondrian Nuessle]

Hi everybody,

I prepared an initial set of patches to support the HP DL145 G3 server, which is a Broadcom HT-1000/HT-2100 based Socket
F machine.

The current status of the port is:

* we have serial output (using the serverengines pilot chip on the board, see attached pilot_superio.patch)
* CPU and memory gets initialized
* on-board eth0 is working
* SATA is working
* the on-board graphic was not tested (not important for
  a server and the graphics sucks anyway...)
* USB and PS2 work
* no ACPI
* I remember that I could also use a PCIe card, see attached bcm21000.patch
* HTX card does work.
* Earlier problems we had in respect to timer interrupt are not there anymore.
* the hp_dl145_g3.patch includes the mainboard and the target dirs

BUT:
* if I coldboot, the CPUs are only running at 1 GHz and not with 2.6 GHz as they should...
* if we boot the factory BIOS and then perform a warm-reset into Coreboot, the CPUs run with 2.6 GHz.

I hope someone on the list can help.

* There are also some more problems with the HT-1000 (aka bcm5785) southbridge:
  - if I activate IDE in bcm5785_early_setup.c, the machine will freeze shortly after being completely booted
  - if I activate the second IOAPIC (line 179 in bcm5785_early_setup.c), my linux boot hangs when starting udevd...
  - with both features disabled (see attached bcm5785_noide.patch), the machine boots and does not crash, of course
    PATA drives are not available.

To boot the machine, I tested FILO. The on-board SATA adapter uses a class id of 0x104 in sata mode
(which we use). FILO does not accept this class ID; I prepared a patch that adds this class ID to
the respective if statement in driver/ide.c. FILO does then boot from SATA without any problems (see attached
filo_dl145_sata.patch).

I hope this gets you started Samuel, and I hope the list can provide some insight regarding the CPU
frequency problem.

Regards,
Mondrian

-- 
 Dr. Mondrian Nuessle
 Phone: +49 621 181 2717          University of Heidelberg
 Fax:   +49 621 181 2713          Computer Architecture Group
 mailto:nuessle at uni-hd.de         http://ra.ziti.uni-heidelberg.de

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