Hi Christian,
here's what Finn asked me to run as tests:
# dmesg | grep this_id > nvram.out
# cat /proc/driver/nvram >> nvram.out
# hexdump -C /dev/nvram >> nvram.out
# cp /dev/nvram /tmp/nvram
# cp /tmp/nvram /dev/nvram
# md5sum /dev/nvram /tmp/nvram >> nvram.out
What you sent so far looks OK. I've tested the change of SCSI ID
(using EmuTOS) along with a trivial patch to atari_scsi.c (replace
offset 14 by 16) and the driver now uses the stored ID properly. I'll
sent kernels to test Finn's NVRAM patch for regression ASAP.
Thanks for your offer of help!
Cheers,
Michael
On Thu, Jul 23, 2015 at 9:21 PM, Christian T. Steigies <cts@xxxxxxxxxx> wrote:
On Wed, Jul 22, 2015 at 02:22:21PM +1000, Finn Thain wrote:
Anyone with a suitable Atari, i.e. ATARIHW_PRESENT(TT_CLK), who can boot
both TOS and Linux could resolve the question. (Perhaps with an emulator?)
Any old kernel binary would do, since atari_scsi should print either
"HOSTID=n" or "this_id n" at startup.
If n doesn't agree with what TOS says about the host's SCSI ID, then I
think a trivial patch is safe enough. Especially if cat /proc/driver/nvram
produces a "SCSI host ID : m" that does agree with TOS.
root@garkin:~>cat /proc/hardware
Model: Atari Falcon
System Memory: 522752K
510 MB at 0x01000000 (alternate RAM)
Detected hardware:
Falcon Shifter
Programmable Sound Generator
PCM 8 Bit Sound
CODEC Sound
SCSI Controller NCR5380 (Falcon style)
IDE Interface
8/16 Mhz Switch for FDC
Multi Function Peripheral MFP 68901
Serial Communications Controller SCC 8530
Paddle Interface
DMA Controller for SCC
Clock Chip MC146818A
Blitter
DSP56001 processor
root@garkin:~>dmesg |grep SCSI
[ 0.000000] Atari hardware found: VIDEL STDMA-SCSI ST_MFP YM2149 PCM CODEC DSP56K SCC_DMA SCC ANALOG_JOY BLITTER IDE TT_CLK FDC_SPEED
[ 0.410000] SCSI subsystem initialized
[ 0.850000] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251)
[ 4.230000] Atari SCSI: resetting the SCSI bus... done
[ 6.750000] scsi host0: Atari native SCSI, io_port 0x0, n_io_port 0, base 0x0, irq 15, can_queue 8, cmd_per_lun 1, sg_tablesize 0, this_id 7, flags { }, options { REAL_DMA SUPPORT_TAGS }
root@garkin:~>cat /proc/driver/nvram
Checksum status : not valid
Boot preference : 0xff (undefined)
SCSI arbitration : on
SCSI host ID : 7
OS language : 255 (undefined)
Keyboard language: 255 (undefined)
Date format : 7 (undefined), 24h clock
Boot delay : 255s
Video mode : 4 colors, 40 columns, TV NTSC monitor
no overscan, compat. mode off
Let me know if you need more info.
Christian
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