Add support for floppy and SCSI devices on OldWorld Powermacs.

/dev/fd0 should only be created by udev after you insert a floppy disk.

is there anything in dmesg after inserting the disk?

sam tygier <email address hidden> wrote:
> /dev/fd0 should only be created by udev after you insert a
> floppy disk.
>
> is there anything in dmesg after inserting the disk?
>
There is no output in dmesg after inserting the disk. When I try to mount it, I get this in the console:

root@plutonium:~# mount -t vfat /dev/fd0 /media/floppy0
mount: special device /dev/fd0 does not exist

And still nothing in dmesg. When trying `modprobe floppy` I get:

root@plutonium:~# modprobe floppy
FATAL: Error inserting floppy (/lib/modules/2.6.15.6-ubuntu1/kernel/drivers/block/floppy.ko): No such device

And this in dmesg (the disk is a 720K DD floppy):

[ 406.223964] Floppy drive(s): fd0 is 2.88M
[ 406.239723] IN from bad port 3f4 at e5ac2484
[ 409.239713] floppy0: no floppy controllers found

Hope this helps.

Regards,
Niels Kristian

I forgot to check the obvious. ;-) CONFIG_MAC_FLOPPY is not set in /boot/config-2.6.15-22-powerpc.

I'm currently building a new kernel to check if CONFIG_MAC_FLOPPY=m fix the bug.

Regards,
Niels Kristian

The .config changes below fixes the bug. It also adds support for the commonly used SCSI interfaces in OldWorld Powermacs.

Regards,
Niels Kristian

--- /boot/config-2.6.15-22-powerpc 2006-05-07 17:44:13.000000000 +0200
+++ .config 2006-05-18 13:23:58.000000000 +0200
@@ -835,7 +835,7 @@
 # Block devices
 #
 CONFIG_BLK_DEV_FD=m
-# CONFIG_MAC_FLOPPY is not set
+CONFIG_MAC_FLOPPY=m
 CONFIG_PARIDE=m
 CONFIG_PARIDE_PARPORT=m

@@ -1084,8 +1084,10 @@
 CONFIG_SCSI_DC390T=m
 CONFIG_SCSI_NSP32=m
 CONFIG_SCSI_DEBUG=m
-# CONFIG_SCSI_MESH is not set
-# CONFIG_SCSI_MAC53C94 is not set
+CONFIG_SCSI_MESH=m
+CONFIG_SCSI_MESH_SYNC_RATE=5
+CONFIG_SCSI_MESH_RESET_DELAY_MS=4000
+CONFIG_SCSI_MAC53C94=m

 #
 # PCMCIA SCSI adapter support

The fix also enables the SCSI interfaces on OldWorld Powermacs, which are needed for installation drives and cdrom drives on some models - they should be probed during the boot process.

Regards,
Niels Kristian

Kernel is now 2.6.15-23, is the bug solved ?

On Tue, 2006-05-23 at 15:20 +0000, Didier Raboud wrote:
> Kernel is now 2.6.15-23, is the bug solved ?
>
No, CONFIG_MAC_FLOPPY is still not set.

Marking In Progress because of proposed solution.

I would appreciate to have a new PowerPC-Server-6.06 LTS installer CD that supports MESH and Floppy support for OldWorld Macs from the scratch.

Is this in progress?

debian/config/powerpc/config.powerpc:CONFIG_SCSI_MESH=m

It's very possible that you need to manually load this driver from the command line.

Opps, I was looking at the wrong kernel. MESH and MAC_FLOPPY are not set. I'll have them enabled in the first dapper update.