Stefan Eßer
77b573149a
New approach to the PCI bus configuration mechanism probe problem:
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- 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.
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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
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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:
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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
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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.
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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
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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 ...
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Submitted by: Wolfgang Stanglmeier <wolf@kintaro.cologne.de>
1995-03-22 19:51:59 +00:00
Stefan Eßer
33865a313c
Remove spurious declaration of printf().
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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.
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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
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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.
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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.
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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
