Hi Michael,
From: Michael Schmitz <schmitz...@gmail.com>
Sent: sábado, 1 de enero de 2022 23:36
> I was under the impression that you could (cross-)build your own kernel
> and initrd? If that's not an option, testing is going to be much harder.
I am afraid not, I am building Debian Installer kernel images and initrd from
Aranym following the building instructions here [1]. If there is documentation
for installing a cross-compiler toolchain I will gladly give a try.
> > In [2] there is a function called ne2000_detect_8bit() that is used
> for that. It looks like it reads the card ROM to figure out. I don't
> know if the CIS is considered a ROM or not.
>
> No, that only figures out what mode is set in the 8390 chip - AFAIK
> needed to support NE1000 type cards. With 16 bit NE2000 type cards, you
> can still use 8 bit IO to access the chip, which is what the 10 Mbit
> cards supported by the apne driver do. 100 Mbit cards need 16 bit IO.
I see. I seemed to me that useword var controlled the IO size and there was a
part on the code where it assumed 16 bit, but later call the
ne2000_detect_8bit() to determine if useword should be kept to 8 bit. Again, I
am not familiar with this :)
---------------
/* not an NE1000 - try NE2000 */
/* try 16 bit mode first */
useword = 1;
#ifdef NE2000_DETECT_8BIT
/*
* Check bus type in EEPROM first because some NE2000 compatible wedges
* on 16 bit DMA access if the chip is configured in 8 bit mode.
*/
if (ne2000_detect_8bit(nict, nich, asict, asich))
useword = 0;
#endif
---------------
> I'll have to create another patch to look for mem resources in the CIS
> data, and get that tested on the already supported cards. Then use that
> for new cards.
I will be glad to test on real hardware, provided I have some means to build a
kernel and an initrd that allows me at least to boot a BusyBox :)
Regards,
Carlos
[1] https://salsa.debian.org/installer-team/debian-installer/
Carlos Milán Figueredo | HispaMSX System Operator | http://www.hispamsx.org |
telnet://bbs.hispamsx.org | https://calnus.com
