Commit Graph

10 Commits

Author SHA1 Message Date
Warner Losh
111bcda150 MFp4: Tweak descriptions in preparation for porting to other members of
the AT91 arm9 family.
2006-11-20 06:27:15 +00:00
Sam Leffler
faad47108d change bus space unmap protoype
Reviewed by:	cognet, imp
MFC After:	1 month
2006-11-19 23:47:51 +00:00
Olivier Houchard
f35ea630e9 Relocate the vector page for AT91, to work around bugs with the LOW_VECTOR
code.
2006-08-28 20:05:00 +00:00
Olivier Houchard
d3e6e0e6f6 We have an implementation of generic_bs_rr_1, so use it, as some drivers use
it.

Submitted by:	kevlo
2006-05-19 11:27:02 +00:00
Olivier Houchard
d5d776c16b Resurrect Skyeye support :
Add a new option, SKYEYE_WORKAROUNDS, which as the name suggests adds
workarounds for things skyeye doesn't simulate. Specifically :
- Use USART0 instead of DBGU as the console, make it not use DMA, and           manually provoke an interrupt when we're done in the transmit function.
- Skyeye maintains an internal counter for clock, but apparently there's
no way to access it, so hack the timecounter code to return a value which
is increased at every clock interrupts. This is gross, but I didn't find a
better way to implement timecounters without hacking Skyeye to get the
counter value.
- Force the write-back of PTEs once we're done writing them, even if they
are supposed to be write-through. I don't know why I have to do that.
2006-05-13 23:41:16 +00:00
Warner Losh
018dc558f6 When returning a resource that we've allocated with rman_reserve_resource,
go ahead and set the rid for that resource.
2006-04-20 04:12:02 +00:00
Warner Losh
5ec7256cb1 Add debug writes in error cases that, in theory, should never happen 2006-04-06 04:32:29 +00:00
Warner Losh
f3de38a73d MFp4:
o Add memory barrier to bus space
o Allow for up to 3 IRQs per device
o Move to table driven population of children devices.
o Add support for usb ohci memory mapped controller resource allocation.
o Clean up a bunch of extra writes to disable interrupts that are now
  done elsewhere.
o Force all system interrupt handlers be fast.  We get deadlock if they
  aren't.
2006-03-18 01:35:49 +00:00
Warner Losh
e1fa2d9556 Use the correct address for the ohci device. 2006-02-11 03:58:07 +00:00
Warner Losh
1248f2322b Import support for the Atmel AT91RM9200 CPU/Microcontroller. This SoC
is a ARM920T based CPU with a bunch of built-in peripherals.  The
inital import supports the SPI bus, the TWI bus (although iicbus
integration is not complete), the uarts, the system timer and the
onboard ethernet.  Support for the Kwikbyte KB9202
(http://www.kwikbyte.com) board is also included, although there's no
reason why the 9200 and the 9201 wouldn't also work.  Primitive
support for running under the skyeye emulator is also provided
(although skyeye's support for the AT91RM9200 is a little weak).

The code has been structured so that other members of Atmel's arm family can
be supported in the future.  The AT91SAM9260 is not presently supported
due to lack of hardware.  The arm7tdmi families are also not supported
becasue they lack an MMU.

Many thanks to cognet@ for his help and assistance in bringing up this
board.  He did much of the vm work and wrote parts of the uart and
system timer code as well as the bus space implementation.

The system boots to single user w/o problem, although the serial
console is a little slow and the ethernet driver is still in flux.

This work was sponsored by Timing Solutions, Corporation.  I am
grateful to their support of the FreeBSD project in this manner.
2006-02-04 23:32:13 +00:00