53c770 SCSI

[<fh...@at...>]

Still trying to make some progress on the PowerUP SCSI
controller.  I noticed that when I try to read back the value from the dsp
register that it is not the same as the value
that was put into it which is the "pc" value   Does anyone 
think that is strange? Assuming the SCSI chip did not change  the value
for some reason, one would think it should be the  same as what was put
in.

Fred


Total memory = 64MB; using 256kB for hash table (at c0200000) Linux
version 2.2.10 (root@amiga1) (gcc version 2.95.2 19991024 (release)) #94
Sat Jul 15 20:51:52 EDT 2000 Amiga hardware found: [A4000T] VIDEO BLITTER
AUDIO FLOPPY A4000_SCSI A4000_IDE KEYBOARD MOUSE SERIAL PARALLEL A3000_CLK
CHIP_RAM PAULA LISA ALICE_NTSC ZORRO3  APUS: BATs=0, BUS=66MHz, RAM=70ns,
PCI bridge=1
time_init: decrementer frequency = 990000000/60
Console: colour dummy device 80x25
Calibrating delay loop... 395.67 BogoMIPS
Memory: 62156k available (1220k kernel code, 1536k data, 112k init)
[c0000000,c4000000] POSIX conformance testing by UNIFIX
Zorro: Probing AutoConfig expansion devices: 5 devices
Linux NET4.0 for Linux 2.2
Based upon Swansea University Computer Society NET3.039
NET4: Unix domain sockets 1.0 for Linux NET4.0.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
Starting kswapd v 1.5 
CV3D detected running in Z3 mode
Console: switching to colour frame buffer device 160x64
fb0: Cybervision/3D frame buffer device, using 4096K of video memory fb1:
Amiga AGA frame buffer device, using 1280K of video memory ****
apus_kbd_init_hw
M68K Serial driver version 1.01
ttyS0 at 0x80dff018: Amiga builtin
pty: 256 Unix98 ptys configured
lp_init: lp using interrupt driver
lp0: Builtin parallel port at 0x80bfe101
Amiga mouse installed.
DMA sound driver installed, using 4 buffers of 32k.
RAM disk driver initialized:  16 RAM disks of 4096K size
loop: registered device at major 7
ide0: Gayle IDE interface (A4000 style)
hda: ST34342A, ATA DISK drive
ide0 at 80dd2020 on irq 0x0000000c
hda: ST34342A, 4103MB w/128kB Cache, CHS=8894/15/63
FD: probing units
found <5>fd: drive 0 didn't identify, setting default ffffffff fd0 fd1 
scsi-ncr53c7xx : NCR53c710 at memory 0x80dd0040, io 0x0, irq 12 scsi0:
Revision 0x1
scsi0 : NCR code relocated to 0xbf365e8 (virt 0xc3f365e8)
scsi0 : test 1 started
Trying to detect PuP SCSI...
ncr53c8xx: 53c770 detected 
ncr53c770-0: rev=0x00, base=0xf40000, io_port=0x0, irq=12
new NCB[2924] @c3f35000.
Storing input
new SCRIPT[3772] @c3f34000.
new SCRIPTH[3708] @c3f2f000.
np: ID: 770 REV: 0 FEA: 15382 CLCK: 5 OF: 10
Initialize timer
paddr: f40000 paddr2: 0
io_port: 0
Peparing...
stuff: 0 0 0 0 1
set verbose:
myaddr: 0
myaddr: 0
myaddr: 7
ncr53c770-0: ID 7, Fast-20, Parity Checking
verbose:5
ncr53c770-0: initial SCNTL3/DMODE/DCNTL/CTEST3/4/5 = (hex)
00/00/00/00/00/00 ncr53c770-0: final   SCNTL3/DMODE/DCNTL/CTEST3/4/5 =
(hex) 05/82/20/00/08/24 no on-board ram
NCR_IOMAPPED
BIG_ENDIAN
scripth: c3f2f000 p_scripth: bf2f000 script: c3f34000 p_script: bf34000
Resetting for snoop test
offset: c
istat: 0
SCSI reset
istat: 40
istat: 0
virt_to_phys(np): bf35000
np: c3f35000
ncr_cache: 0 pc: bf2fe50
nc_dsp: bf2
ncr_snooptest(): CACHE TEST FAILED: timeout.
CACHE INCORRECTLY CONFIGURED.
ncr53c770-0: detaching...
scsi0 : Amiga NCR53c710 SCSI
scsi : 1 host.
scsi0 : target 2 accepting period 200ns offset 8 5.00MHz synchronous SCSI
scsi0 : setting target 2 to period 200ns offset 8 5.00MHz synchronous SCSI
  Vendor: TOSHIBA   Model: CD-ROM XM-6201TA  Rev: 1037
  Type:   CD-ROM                             ANSI SCSI revision: 02
Detected scsi CD-ROM sr0 at scsi0, channel 0, id 2, lun 0 scsi0 : target 5
accepting period 204ns offset 8 4.90MHz synchronous SCSI scsi0 : setting
target 5 to period 208ns offset 8 4.80MHz synchronous SCSI
  Vendor: WANGTEK   Model: 51000  SCSI REV7  Rev: 3J  
  Type:   Sequential-Access                  ANSI SCSI revision: 01
Detected scsi tape st0 at scsi0, channel 0, id 5, lun 0 scsi : detected 1
SCSI tape 1 SCSI cdrom total.
Uniform CDROM driver Revision: 2.55
PPP: version 2.3.7 (demand dialling)
TCP compression code copyright 1989 Regents of the University of
California PPP line discipline registered.
eth0: Ariadne at 0x00ea0000, Ethernet Address 00:60:30:00:10:01 Partition
check:
 hda: RDSK hda1 hda2 hda3 hda4 hda5
VFS: Mounted root (ext2 filesystem) readonly.
Freeing unused kernel memory: 112k init 32k prep 4k pmac 8k open firmware
Adding Swap: 73840k swap-space (priority -1)


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fh...@at...
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