Takehiko Abe wrote:
>
> Michel Lanners wrote:
>
> > Try putting your Fireball on a different ID. This was FAQ a very long
> > time ago when MkLinux started supporting the 7/8/9x00 PCI-based
> > machines... Nobody ever came up with any sort of explanation, but moving
> > the disk to a different SCSI ID helped most of the time.
>
> Unfortunately my fireball HD won't work unless it is set to id=0,
> that is, MacOS won't startup at all. I guess I've got a lemon
> --Quantum Fireball 1080S (Apple branded).
>
> I already tried various id combinations, different orders in the
> chain and even termination in the middle. all in vain. Irritating
> part is that debian does recognize it once in a few boots and gives
> me a kernel panic. It seems to occur randomly.
>
> I'm going to swith it from mesh to 53C94 (I need to get cable
> first.)
You may try the following patch. It worked for me.
Regards,
-velco
--- 8< ---
diff -u -r -X exclude linux-2.3-linus/drivers/scsi/mesh.c
linux-2.3/drivers/scsi/mesh.c
--- linux-2.3-linus/drivers/scsi/mesh.c Wed Sep 8 14:51:22 1999
+++ linux-2.3/drivers/scsi/mesh.c Thu Oct 28 23:27:40 1999
@@ -485,25 +479,17 @@
udelay(100);
- out_le32(&md->control, (RUN|PAUSE|FLUSH|WAKE) << 16); /* stop dma */
- out_8(&mr->exception, 0xff); /* clear all exception bits */
- out_8(&mr->error, 0xff); /* clear all error bits */
+ out_8(&mr->exception, 0xff);
+ out_8(&mr->error, 0xff);
out_8(&mr->sequence, SEQ_RESETMESH);
udelay(10);
+
+ out_8(&mr->interrupt, 0xff); /* clear all interrupt bits */
out_8(&mr->intr_mask, INT_ERROR | INT_EXCEPTION | INT_CMDDONE);
out_8(&mr->source_id, ms->host->this_id);
out_8(&mr->sel_timeout, 25); /* 250ms */
- out_8(&mr->sync_params, ASYNC_PARAMS);
-
- out_8(&mr->bus_status1, BS1_RST); /* assert RST */
- udelay(30); /* leave it on for >= 25us */
- out_8(&mr->bus_status1, 0); /* negate RST */
-
- out_8(&mr->sequence, SEQ_FLUSHFIFO);
- udelay(1);
- out_8(&mr->sync_params, ASYNC_PARAMS);
- out_8(&mr->sequence, SEQ_ENBRESEL);
- out_8(&mr->interrupt, 0xff); /* clear all interrupt bits */
+ out_8(&mr->sync_params, ASYNC_PARAMS); /* asynchronous initially */
+ out_le32(&md->control, (RUN|PAUSE|FLUSH|WAKE) << 16);
}
/*
--- 8< ---
