Dear Rudolf,
Am 03.10.20 um 20:39 schrieb Rudolf Marek:
Dne 03. 10. 20 v 16:16 Paul Menzel napsal(a):
I’ll try to figure out, what is wrong with the Super I/O settings
in the devicetree. Removing the devicetree Super I/O configuration
already gets rid of the hang, but causes other problems. Help is
appreciated.
Please can you check how the LPC decode registers are setup? The 14.3
device has some registers to setup what is going to be sent to LPC
bus. There are bits for fixed legacy regions like COM1 etc, and then
there are bigger 3? programmable ranges.
Maybe this is in conflict with legacy I/O which causes the hang.
I don't know the right file, maybe it is in
src/southbridge/amd/agesa/hudson/lpc.c see
hudson_lpc_enable_childrens_resources() Maybe booting with debug
verbosity would tell.
"hudson lpc decode:%s, base=0x%08x, end=0x%08x\n",
Thank you very much for your help and suggestions. It’s great to know,
that you are still reading messages on the mailing list.
It turned out that, that removing `io 0x60 = 0x00` from the devicetree
got rid of the hang.
device pnp 2e.8 on # WDT1, GPIO0, GPIO1
io 0x30 = 0x00
io 0x60 = 0x00
io 0x61 = 0x00
With the help of Michael, Nico, and Angel in #[email protected],
the problem was further debugged, and Nico explained the weird
devicetree semantics (effects of enabling a device with `on`) and
noticed that `io` was used mostly incorrectly, and that `irq` had to be
used.
Nico was so kind, creating a patch series fixing these issues [7].
Now, only the PCI issues have to be fixed, so the network card is
detected. But, if I should fail to fix it myself, I am going to start a
new thread for these.
Kind regards,
Paul
[1]: https://review.coreboot.org/c/coreboot/+/39371/
[2]: https://review.coreboot.org/c/coreboot/+/39377/
[3]:
https://review.coreboot.org/cgit/board-status.git/commit/asus/f2a85-m/4.10-942-ga89c82e4021/2019-10-08T12_59_37Z/cbfs.txt?id=a922631d481cec9951be67b2c6c208f74054676f
[4]: https://review.coreboot.org/c/coreboot/+/35855 >> [5]:
https://review.coreboot.org/c/coreboot/+/35086
[6]:
https://review.coreboot.org/plugins/gitiles/coreboot/+/06639f2abf86bd0eef9c7808b7e724450d1408b8/src/mainboard/asus/f2a85-m/devicetree_f2a85-m_pro.cb#60
[7]: https://review.coreboot.org/c/coreboot/+/46021/
"mb/asus/f2a85-m_pro: Enable super-i/o LDNs 0x0f and 0x14"
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