RE: [OpenBIOS] PCI Enumeration and driver Implementation

Hi Viswa,
> > I need to write PCI Bus Driver for MIPS Embedded Processor.  In my
> > case PCI is a built-in device, need to know the details about writing
> > PCI Enumeration -- i.e configuring and enumerating PCI Devices.
> Have a look at the sources ;-) The PCI driver is already there in

OpenBIOS. See openbios-devel/drivers/pci.* To get it >working for a new
platform, you basically need to adapt
openbios-devel/include/<arch>/pci.h
> Note: The driver does not do much at the moment. IE ROM probing does

not work correctly. See the issue tracker for >more details:

https://www.openbios.org/roundup/openbios/
> Do you have OpenBIOS running on MIPS hardware?

YES I have OpenBIOS running on MIPS Hardware... Running on RAM.
I had taken lot older Kernel I believe the director structure doesn't
have
Drivers directory. openbios-latest.tar been using this tar also removed
lot of unwanted
Directories like Tokenizer detok fcc but right now after the changes my
directory contents
Looks like this.

openbios:
kernel
Makefile
obj-mips
README

openbios/kernel:
arch
Documentation
forth
include
kernel
Makefile
plugins
README
Rules.make
util

openbios/kernel/arch:
amd64
mips
ppc
unix
x86

openbios/kernel/arch/amd64:
boot.S
builtin.c
console.c
include
Kconfig
Makefile
mboot.S
multiboot.c
plainboot.c

openbios/kernel/arch/amd64/include:
io.h
multiboot.h

openbios/kernel/arch/mips:
boot.S
builtin.c
console.c
include
Makefile
proto.h
txsio.h

openbios/kernel/arch/mips/include:
io.h
kxmips.h
multiboot.h
mipsreg.h
mipreg.h

openbios/kernel/arch/ppc:
Kconfig
Makefile

openbios/kernel/arch/unix:
Kconfig
Makefile
plugins.c
unix.c

openbios/kernel/arch/x86:
boot.S
builtin.c
console.c
include
Kconfig
Makefile
mboot.S
multiboot.c
plainboot.c

openbios/kernel/arch/x86/include:
io.h
multiboot.h

openbios/kernel/Documentation:
AUTHORS
Changelog.stepan
COPYING
dictformat.txt
glossary.txt
initializers.txt
TODO

openbios/kernel/forth:
administration
apic.fs
bootstrap.fs
builtin.fs
debugging
device
fract.fs
hayes.fs
interpreter.fs
lib
Makefile
memory.fs
packages
pci.fs
start.fs
system
test.fs
testsuite
util
vocabulary.fs

openbios/kernel/forth/administration:
banner.fs
callback.fs
devices.fs
help.fs
iocontrol.fs
Makefile
nvram.fs
README
reset.fs
script.fs
security.fs
selftest.fs
userboot.fs

openbios/kernel/forth/debugging:
client.fs
fcode.fs
firmware.fs
Makefile
see.fs

openbios/kernel/forth/device:
builtin.fs
device.fs
display.fs
extra.fs
fcode.fs
feval.fs
font.fs
logo.fs
Makefile
missing
other.fs
package.fs
pathres.fs
preof.fs
property.fs
README.device
structures.fs
table.fs
terminal.fs
tree.fs

openbios/kernel/forth/lib:
cbindings.fs
lists.fs
Makefile
split.fs
string.fs

openbios/kernel/forth/packages:
deblocker.fs
disklabel.fs
Kconfig
Makefile
obp-tftp.fs
packages.fs
README
terminal-emulator.fs

openbios/kernel/forth/system:
ciface.fs
dummy.fs
main.fs
Makefile

openbios/kernel/forth/testsuite:
framebuffer-test.fs
Makefile
memory-testsuite.fs
README
splitfunc-testsuite.fs

openbios/kernel/forth/util:
Makefile
pci.fs
util.fs

openbios/kernel/include:
config.h
dict.h
plugins.h
stack.h
sysinclude.h

openbios/kernel/kernel:
bootstrap.c
dict.c
forth.c
internal.c
Kconfig
lib.c
Makefile
openbios.c
primitives.c
stack.c

openbios/kernel/obj-mips:
dict.o
lib.o
openbios.o
primitives.o
Rules.arch
stack.o
types.h

openbios/kernel/plugins:
Kconfig
loader.c
Makefile
plugin_pci
plugin_qt

openbios/kernel/plugins/plugin_pci:
Makefile
plugin_pci.c
plugin_pci.h

openbios/kernel/plugins/plugin_qt:
fcode.h
logo.xpm
Makefile
pciconfig.h
plugin_qt.cpp
plugin_qt.h
plugin_qt.pro
qt_main.cpp
qt_rom.fs

openbios/kernel/util:
bin2hex.c
types.sh

openbios/obj-mips:
kernel

openbios/obj-mips/kernel:
bin2hex
boot.o
bootstrap
bootstrap.dict
bootstrap.log
builtin.o
console.o
dictionary.h
dict.o
ld.script
lib.o
loader
loader.nostrip
loader.o
openbios.full
openbios.full.nostrip
openbios.o
openfirmware.dict
openfirmware.fs
openfirmware.log
primitives.o
Rules.arch
stack.o
temp
types.h
unix
unix.nostrip
> > Should there be any base enumeration to be written in C program if so
> > where is the hook Point in Openbios kernel and then rest in Forth or
> > everything (configuring, enumerating, Reading and writing) needs to

be
> > implemented in Forth using PCI Bus Binding according to Open

Firmware.
> See the existing driver.

Anyway I keep on adding hooks to the same kernel instead of once again
making
Changes for cross compilation in the new kernel. If u can give me the
links and
Changes needs to be applied I'll do it myself....

Regards
Viswa

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