Commit Graph

16 Commits

Author SHA1 Message Date
Stefan Eßer
c7483249e7 Fix bad typo: CONF1_ENABLE_RES1 was written CONF1_ENABLE_CHK1 ... 1995-10-09 21:56:24 +00:00
Stefan Eßer
77b573149a New approach to the PCI bus configuration mechanism probe problem:
- try to make sure there is any kind of PCI device
- if there is anything at port 0x0cf8, then check for mech. 1 or 2
1995-09-22 19:10:54 +00:00
Stefan Eßer
a3adc4f8c5 Revert most changes of previous commit.
Changes relative to 1.12:
- Put extra instruction between outl()/inl() sequence to prevent the
  old value being read back because of the bus capacitance.
- Additional check for existence of register at CONF2_ENABLE_PORT.
1995-09-18 21:48:39 +00:00
Stefan Eßer
2d14418625 Another try to determine the PCI bus configuration mode (and whether
there is a PCI bus at all) ...

- Do not expect the chip sets to follow even very clearly expressed
  requirements of the PCI 2.0 spec.
- Do not read back the value just written to an I/O port without making
  sure that some other data have crossed the bus in between ...
1995-09-15 21:43:45 +00:00
Stefan Eßer
d7ea35fc88 Improved verification of configuration space accesses working:
Scan for devices instead of assuming that device 0 is present on bus 0
of every PCI motherboard.
1995-09-14 20:27:31 +00:00
Stefan Eßer
cda6791190 Make the PCI host bridge probe code more robust when dealing with chip sets
that use configuration mode 1, but still violate the PCI 2.0 specs ...
(Required for the Compaq Proliant, for example.)
1995-09-13 17:03:47 +00:00
Stefan Eßer
d2a2d5ec41 The PCI config mechanism 1 test failed for the Intel Aries.
Make it less strict ...

Submitted by:	NIIMI Satoshi <sa2c@and.or.jp>
1995-06-30 16:11:42 +00:00
Stefan Eßer
0847c06d2e PCI configuration mechanism now determined by a method, that doesn't
fail on new hardware (Compaq Prolinea and Compaq Prosignea), and that
doesn't erroneously identify old mech. 2 chip sets as using mech. 1.
(See section 3.6.4.1.1 of the PCI bus specs rev. 2.0)
1995-06-28 15:54:57 +00:00
Stefan Eßer
0f29bf015c Correct pcibus_setup() to return as soon as one test succeeds. 1995-03-22 21:35:39 +00:00
Stefan Eßer
9c6f3c132b Delete PCI PCI bridge simulator code ...
Submitted by:	Wolfgang Stanglmeier <wolf@kintaro.cologne.de>
1995-03-22 19:51:59 +00:00
Stefan Eßer
33865a313c Remove spurious declaration of printf().
Submitted by:	Michael Reifenberger <root@rz-wb.fh-sw.de>
1995-03-22 10:52:05 +00:00
Stefan Eßer
5b3f532eb1 New ISA specific PCI code.
Supports shared PCI interrupts.

Submitted by:	Wolfgang Stanglmeier <wolf@kintaro.cologne.de>
1995-03-21 23:06:07 +00:00
Bruce Evans
550f8550ec Replace all remaining instances of i386/include' by machine' and fix
nearby #include inconsistencies.
1995-02-26 05:14:53 +00:00
Stefan Eßer
781d9d4623 Keep PCI_CONF_MODE in a safe place for later reference, if #defined.
Reviewed by:	se
Submitted by:	seb@erix.ericsson.se (Sebastian Strollo)
1995-02-25 17:51:18 +00:00
Stefan Eßer
6f22585dd4 Initialisation of interrupt masks changed.
Reviewed by:	se
Submitted by:	wolf (Wolfgang Stanglmeier)
1995-02-09 20:16:19 +00:00
Stefan Eßer
ac19f91802 Reviewed by: se
Submitted by:	wolf (Wolfgang Stanglmeier)
New ISA dependend file for PCI bus support.
Replaces sys/i386/pci/pcibios.c.
1995-02-01 23:06:58 +00:00