About NetBSD/acorn26
NetBSD/acorn26 is the port of NetBSD to ARMv2 and ARMv2a
machines, primarily the Acorn Archimedes, A-series and
R-series systems. These systems pre-date those supported by
NetBSD/arm32 and use an earlier,
incompatible version of the ARM architecture.
NetBSD/acorn26 News
-
2006-10-01:
acorn26 now uses standard ARM bus space implementation
-
Ben Harris
committed a change
to move
over to using the standard ARM bus_space implementation on
acorn26. This is more flexible than the old acorn26 bus_space,
which means that single read/write operations are slower, but
multi and region operations have the potential to be faster, and
particularly insane podules might be supportable.
-
2006-10-01:
new driver sec(4) for the Acorn SCSI Expansion Card
-
Ben Harris
committed a new driver
sec(4)
for the Acorn SCSI Expansion. Unlike asc(4), this driver uses the
board's DMA system, uses the machine-independent WD33C93 driver,
works on NetBSD/acorn26, and doesn't share a name with six other
machine-dependent SCSI drivers. Not tested on acorn32, but it
seems to work tolerably well on an A540.
-
2003-10-15:
arm port Xscale optimizations
-
Steve Woodford announced that he has committed various Xscale
micro-optimizations to the NetBSD/arm ports.
Please see his message
to the port-arm Mailing List for details.
-
2001-12-08:
New -current snapshot available
-
A new -current snapshot based on 2001-12-07 sources is now available
in the NetBSD/arm26 snapshot area of the ftp server.
(snapshot deprecated.
NetBSD 1.6 was released on
2002-09-14)
-
2001-09-12:
Minimal Econet support
-
NetBSD-current now includes minimal support for Econet interfaces.
At the moment, there are no protocols implemented on top of Econet, so
its usefulness is rather limited. This will change.
-
2001-07-28:
New bootloader
-
Ben Harris has committed a new bootloader, with support for gzipped
kernels, to NetBSD/arm26. See Ben's announcement in the port-arm26
mail archive for more details.
-
2001-05-31:
boot with local root
-
Ben Harris (bjh21@NetBSD.org) has gotten
support for booting with root on a local disk.
-
2001-05-28:
DMA in HCCS SCSI driver
-
Ben Harris (bjh21@NetBSD.org) has committed
support for the pseudo-DMA facilities of the HCCS SCSI podule.
This gets speed up to 300 KB/s.
Archive of NetBSD/acorn26 news items
Supported System Models
Note that NetBSD/acorn26 requires at least 8 Mb of RAM.
Systems with less memory than this will not currently work.
- Archimedes 305, 310 and 440
- R140
- Archimedes 410/1, 420/1 and 440/1 (untested)
- BBC A3000
- Archimedes 540
- R260 and R225 (untested)
- A5000
- A4 (untested)
- A3010 (untested)
- A3020
- A4000 (untested)
-
Dave Gilbert's
ArcEm
Supported Peripherals
On new machines:
- On-board IDE interface (wdc) supporting
ATA and
ATAPI
devices.
- On-board serial port (com)
- On-board parallel port
(lpt)
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NetBSD/acorn26 Information
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