NetBSD/sys/arch/sun3/dev
glass 8585a64107 sun3 port updated. netboot integrated. 1993-10-12 05:17:41 +00:00
..
README runs up to and including configure(). 1993-08-15 23:01:58 +00:00
TODO add todo list for dev directory 1993-07-30 17:01:46 +00:00
idprom.c runs up to and including configure(). 1993-08-15 23:01:58 +00:00
if_le.c sun3 port updated. netboot integrated. 1993-10-12 05:17:41 +00:00
if_le.h runs up to and including configure(). 1993-08-15 23:01:58 +00:00
if_le_subr.c snapshot. for uploading. gets lost in swtch after enablertclock() 1993-08-21 02:16:07 +00:00
if_le_subr.h snapshot. starts nfsmountroot but doesn't seem to emit any packets 1993-08-24 20:26:48 +00:00
if_lereg.h last snapshot before uploading. we still have serious clock problems 1993-08-28 15:35:16 +00:00
obctl.c runs up to and including configure(). 1993-08-15 23:01:58 +00:00
obio.c sun3 port updated. netboot integrated. 1993-10-12 05:17:41 +00:00
obmem.c runs up to and including configure(). 1993-08-15 23:01:58 +00:00
prom.c sun3 port updated. netboot integrated. 1993-10-12 05:17:41 +00:00

README

							<$Revision: 1.1 $>

NetBSD/sun3 supports the following busses:

Bus:
obio	-  Devices on the motherboard, accessed by having their "registers"
	   mapped into the kernel's virtual address space
obctl	-  Devices on the motherboard accessible only via the 'CONTROL' space,
	   and supporting instructions on the m68k.
obmem	-  Devices on the motherboard that are mapped into main memory
	   by the hardware.  Only true of some framebuffers.
mainbus -  An imaginary bus on which obio, obctl, obmem, and the prom device
	   all reside.

Devices supported:

'obio' Bus: 
Device	Type    Description
---------------------------------------------------------------------------
zs	CHAR	zilog 8530 serial ports; used for serial ports, keybd, mouse
le	IFNET	lance ethernet driver

'obctl' Bus: 
Device	Type    Description
---------------------------------------------------------------------------
idprom	CHAR	makes idprom contents accessible in user-space


The 'prom' device is just wierd as it isn't a real device, but enough
wrapping so that the prom input/output routines can be used to make
the prom's idea of the console both a tty, and a console in the netbsd
sense.

prom	CHAR	prom-based tty and console support