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\ *****************************************************************************
\ * Copyright (c) 2004, 2007 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.
00 842 config-b! \ Disable 8237 & 8254 & 8259's. We're not a PC.
80 847 config-b! \ Disable EHCI, as it is terminally broken.
03 848 config-b! \ Enable LPC, IDE; disable I2C, SMM, AC'97 functions.
01 849 config-b! \ Enable USB, disable 100Mb enet.
01 84b config-b! \ Enable IO-APIC.
fec00000 s" ioapic.fs" included
00 init-ioapic
\ Program PNPIRQ[0,1,2] as IRQ #D,E,F; switch those GPIOs to low-active.
0b 848 config-b! \ enable devB:3
7000 b58 config-l! \ map PMxx at pci i/o 7000
d1 b41 config-b! \ enable access to PMxx space
\ on JS20 the planar id is encoded in GPIO 29, 30 and 31
\ >=5 is GA2 else it is GA1
: (planar-id) ( -- planar-id)
[ 70dd io-c@ 5 rshift 1 and ] LITERAL
[ 70de io-c@ 5 rshift 2 and ] LITERAL
[ 70df io-c@ 5 rshift 4 and ] LITERAL
+ + 7 xor
;
u3? IF ['] (planar-id) to planar-id THEN
8 70d3 io-c! 8 70d4 io-c! 8 70d5 io-c! \ set the pins to low-active
bimini? IF 5 70c4 io-c! THEN \ on bimini set gpio4 as output and high to power up USB
fec b44 config-w! \ set PNPIRQ pnpirq2 -> f , pnpirq1 -> e pnpirq0 -> c
51 b41 config-b! \ disable access to PMxx space
03 848 config-b! \ disable devB:3
\ The function of the PCI controller BARs change depending on the mode the
\ controller is in.
\ And the default is legacy mode. Gross.
05 909 config-b! \ Enable native PCI mode.
03 940 config-b! \ Enable both ports.
\ Enable HPET on 8111, at address fe000000.
fe000001 8a0 config-l!
: >hpet fe000000 + ;
: hpet@ >hpet rl@-le ;
: hpet! >hpet rl!-le ;
INCLUDE freq.fs
\ Disable HPET.
0 8a0 config-l!
\ 8111 has only 16 bits of PCI I/O space. Get the address in range.
8000 next-pci-io !
my-space pci-class-name type cr
my-space pci-bridge-generic-setup
s" pci" device-name
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