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\ =============================================================================
\ * Copyright (c) 2004, 2005 IBM Corporation
\ * All rights reserved.
\ * This program and the accompanying materials
\ * are made available under the terms of the BSD License
\ * which accompanies this distribution, and is available at
\ * http://www.opensource.org/licenses/bsd-license.php
\ *
\ * Contributors:
\ * IBM Corporation - initial implementation
\ =============================================================================
\ AMD 8111 I/O hub.
\ See the documentation at http://www.amd.com ; the datasheet for this chip is
\ document #24674.
\ First, some master config. Not all of this logically belongs to just
\ one function, and certainly not to the LPC bridge; also, we'll
\ initialize all functions in "downstream" order, and this code has to be
\ run first. So do it now.
00 2042 config-b!
03 2048 config-b! \ Enable LPC, IDE; disable I2C, SMM, AC'97 functions.
00 2049 config-b! \ Disable everything on second bus (USB, 100Mb enet).
01 204b config-b! \ Enable IO-APIC.
30 fec00000 rb! 0000a010 fec00010 rl!-le
31 fec00000 rb! ff000000 fec00010 rl!-le
32 fec00000 rb! 0000a011 fec00010 rl!-le
33 fec00000 rb! ff000000 fec00010 rl!-le
34 fec00000 rb! 0000a012 fec00010 rl!-le
35 fec00000 rb! ff000000 fec00010 rl!-le
36 fec00000 rb! 0000a013 fec00010 rl!-le
37 fec00000 rb! ff000000 fec00010 rl!-le \ Set PCI IRQs as 10..13.
\ Leave ISA IRQs disabled.
\ Device A, function 0: PCI bridge.
\ We show this bridge in the device-tree, for completeness, as it is
\ impossible to completely disable this device; we don't assign any
\ address space to it though, or enable any transactions through it.
\ Maybe later we want to support the USB functions on its secondary
\ side; but not now.
new-device s" /ht/pci@3" full-name
s" pci" 2dup device-name device-type
: open true ;
: close ;
finish-device
\ Device B, function 0: LPC bridge.
new-device s" /ht/isa@4" full-name
\ See the "ISA/EISA/ISA-PnP" OF binding document.
s" isa" 2dup device-name device-type
\ We have to say it's ISA i.s.o. LPC, as otherwise Linux can't find
\ the serial port for its console. Linux uses the name instead of the
\ device type (and it completely ignores any "compatible" property).
\ 64kB of ISA I/O space, at PCI devfn 4:0.
1 encode-int 0 encode-int+
01002000 encode-int+ 0 encode-int+ 0 encode-int+
10000 encode-int+ s" ranges" property
: open true ;
: close ;
\ There's a SIO chip on the LPC bus.
INCLUDE hw/sio.fs
finish-device
\ Device B, function 1: ATA controller.
new-device s" /ht/ata@4,1" full-name
s" ata" 2dup device-name device-type
s" ide" compatible
2108 dup config-l@ 500 or swap config-l! \ Enable native PCI mode.
2104 dup config-l@ 5 or swap config-l! \ Enable I/O, bus master.
2140 dup config-l@ 03 or swap config-l! \ Enable both ports.
10 213c config-b! \ Set IRQ#.
: open true ;
: close ;
\ Just assume there is always one disk.
INCLUDE hw/disk.fs
\ Enable HPET at address fe000000.
fe000001 20a0 config-l!
: >hpet fe000000 + ;
: hpet@ >hpet rl@-le ;
: hpet! >hpet rl!-le ;
INCLUDE hw/freq.fs
\ Disable HPET.
0 20a0 config-l!
finish-device
|
