getting the 8600 to boot 2.4.5
guillaume.laures at noos.fr
Sat Jun 23 03:12:27 EST 2001
> In your patch you hardcode opening the 2nd display device. Maybe it would be
> better to keep trying to open a display until one succeeds? That way it would
> work for everyone. :)
I've managed to get a powermac 8600 boot linux 2.4 ('s been long since I
The trick is that in 2.4 kernel, linux tries to open the first frame
buffer, and on machines of the 8x00 class this mean opening the sixty
convoluer, a frame buffer that allows the use of the video output (Y/C
Unfortunately, linux has not a driver for it so the opening always
fails, and the machine goes back to OF with a DEFAULT CATCH something.
In 2.2, the behaviour was different in that it tried to open every
framebuffer, or every frame buffer up to succes, I don't know, so this
machine was used to work well.
Now, the question is wether we should hardcode opening the second
display on thoses machines, or go back to the previous behaviour, I
don't knwo why it couls have been removed.
Or someone writes a driver for the sixty ;-P
Here is a console log with the patch applied (yes, I made it netboot,
plain boot is just so boring...):
file: 192.168.77.10,vmlinux.coffloading XCOFF
tsize=5FC0 dsize=FAB70 bsize=215E0 entry=500000
.text 00500000 00500000 00005FC0 000000E0
.data 00510000 00510000 000FAB70 000060A0
.bss 0060AB70 0060AB70 000215E0 00000000
loading .text, done..
loading .data, done..
clearing .bss, done..
coffboot starting: loaded at 0x500000
heap at 0x60c150
gunzipping (0xc0000000 <- 0x5102c8:0x60aa58)...done 2438856 bytes
46896 bytes of heap consumed, max in use 40816
start address = 0xc0000000
opening display /chaos at F0000000/control at B... ok
copying OF device tree...done
Initializing fake screen: control
Calling quiesce ...
Total memory = 192MB; using 1024kB for hash table (at c0300000)
Linux version 2.4.5-pre1_0c (root at pmg4) (gcc version 2.95.3 20010111
Cache coherency enabled for bandit/PSX at 00000000
Found Bandit PCI host bridge at 0xf2000000. Firmware bus number: 0->1
Found Chaos PCI host bridge at 0xf0000000. Firmware bus number: 2->2
On node 0 totalpages: 49152
zone(0): 49152 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: console=ttyS0 video=controlfb:vmode:6,cmode:8
System has 32 possible interrupts
GMT Delta read from XPRAM: 0 minutes, DST: off
via_calibrate_decr: ticks per jiffy = 124992 (749957 ticks)
Console: colour dummy device 80x25
Calibrating delay loop... 699.59 BogoMIPS
Memory: 189416k available (1644k kernel code, 776k data, 224k init, 0k
Dentry-cache hash table entries: 32768 (order: 6, 262144 bytes)
Buffer-cache hash table entries: 16384 (order: 4, 65536 bytes)
Page-cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 16384 (order: 5, 131072 bytes)
POSIX conformance testing by UNIFIX
PCI: Probing PCI hardware
Unknown bridge resource 2: assuming transparent
PCI:0:10:0: Resource f3000000-f301ffff (f=200)
PCI:1:8:0: Resource 84110000-8411007f (f=200)
PCI:1:8:0: Resource 00001000-0000107f (f=101)
PCI:1:8:0: Resource 82000000-83ffffff (f=1208)
PCI:1:9:0: Resource 84100000-8410ffff (f=200)
Macintosh CUDA driver v0.5 for Unified ADB.
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
controlfb: Memory bank 1 present, bank 2 absent, total VRAM 2MB
On a side note, this is wrong, I have the 2 banks filled, but I'll check
Monitor sense value = 0x623, using video mode 6 and color mode 0.
Console: switching to colour frame buffer device 80x30
fb0: control display adapter
no framebuffer address found for /bandit at F2000000/gc at 10/sixty6 at 1C000
This is the first display device without a driver
input0: Macintosh mouse button emulation
PowerMac Z8530 serial driver version 2.0
tty00 at 0xfcfa6020 (irq = 15) is a Z8530 ESCC, port = modem
tty01 at 0xfcfa3000 (irq = 16) is a Z8530 ESCC, port = printer
pty: 256 Unix98 ptys configured
block: queued sectors max/low 125642kB/41880kB, 384 slots per queue
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
fd0: SWIM3 floppy controller
PCI: Enabling device 01:08.0 (0014 -> 0017)
DAC960: ***** DAC960 RAID Driver Version 2.4.10 of 1 February 2001 *****
DAC960: Copyright 1998-2001 by Leonard N. Zubkoff <lnz at dandelion.com>
And here it becomes bad, and currently my goal in life is getting the
mylex driver to work.
BTW, can anybody tell me if something like this can lead to endianness
readb(ControllerBaseAddress + DAC960_LA_InboundDoorBellRegisterOffset);
Thanks for the good work and keep on
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