Commit Graph

347 Commits

Author SHA1 Message Date
Warner Losh
5385196376 Provide hooks into the GPIO lines and the ability to set/clear
interrupts from them.  This should be more generalized, but is
sufficient for now.

Submitted by:	Hans Petter Selasky
2008-08-19 22:17:14 +00:00
Warner Losh
86f88de002 Use the proper clock domain for the usb host controller.
Submitted by:	Hans Petter Selasky
2008-08-19 22:16:10 +00:00
Warner Losh
5d8e2080ac Add IRQ line for usb device. I'm not 100% sure this is the right
place to add this connection, since the interrupt is for a GPIO pin,
but since we have no alternative at the moment...

Submitted by:	Hans Petter Selasky
2008-08-19 22:15:14 +00:00
John Baldwin
13e3657b7b Add locking to the various iicbus(4) bridge drivers:
- Just grab Giant in the ixp425_iic(4) driver since this driver uses
  a shared address/data register window pair to access the actual
  I2C registers.  None of the other ixp425 drivers lock access to these
  shared address/data registers yet and that would need to be done before
  this could use any meaningful locking.
- Add locking to the interrupt handler and 'iicbus_reset' methods of the
  at91_twi(4) driver.
- Add locking to the pcf(4) driver.  Other pcf(4) fixes include:
  - Don't needlessly zero the softc.
  - Use bus_foo rather than bus_space_foo and remove bus space tag and
    handle from softc.
- The lpbb(4) driver just grabs Giant for now.  This will be refined later
  when ppbus(4) is locked.
- As was done with smbus earlier, move the DRIVER_MODULE() lines to match
  the bus driver (either iicbus or iicbb) to the bridge driver into the
  bridge drivers.

Tested by:	sam (arm/ixp425)
2008-08-04 20:46:15 +00:00
Ed Schouten
6d09e4f1a8 Make the at91 uart(4) driver compile again.
As of r178766 this driver didn't compile anymore, because it missed a
switch()-statement. I'm getting tired of seeing this driver being broken
for two months already. When I run `make universe', everything passes,
except the BWCT kernel configuration file.
2008-08-02 08:01:56 +00:00
Stanislav Sedov
cde9cd82fe - Whitespace fixes.
Approved by:	gonzo
MFC after:	1 week
2008-07-22 14:04:06 +00:00
Bernd Walter
fe228e4a7a fix multicast hash register definition 2008-07-12 23:40:07 +00:00
Wojciech A. Koszek
10170e4559 Since we create a DMA tag "mtag" for TX map with bus_dmamap_create(),
we must synchronize such a map against "mtag" with bus_dmamap_sync(),
not the tag designated for RX map.

Fix it.

Approved by:	cognet
2008-06-09 21:51:48 +00:00
Warner Losh
70311cad4b Release the resources for the registers for the TWI device with
SYS_RES_MEMORY to match how we allocate them...

Noticed by: Ian Lepore
2008-05-28 14:35:15 +00:00
Peter Wemm
43d7128c14 Expand kdb_alt_break a little, most commonly used with the option
ALT_BREAK_TO_DEBUGGER.  In addition to "Enter ~ ctrl-B" (to enter the
debugger), there is now "Enter ~ ctrl-P" (force panic) and
"Enter ~ ctrl-R" (request clean reboot, ala ctrl-alt-del on syscons).

We've used variations of this at work.  The force panic sequence is
best used with KDB_UNATTENDED for when you just want it to dump and
get on with it.

The reboot request is a safer way of getting into single user than
a power cycle.  eg: you've hosed the ability to log in (pam, rtld, etc).
It gives init the reboot signal, which causes an orderly reboot.

I've taken my best guess at what the !x86 and non-sio code changes
should be.

This also makes sio release its spinlock before calling KDB/DDB.
2008-05-04 23:29:38 +00:00
Olivier Houchard
e19357d3a5 On the AT91, we need to write on the EOI register after we handle an
interrupt. So, add a new function pointer, arm_post_filter, which defaults
to NULL, and which will be used as the post_filter arg for
intr_event_create(). Set it properly for the AT91, so that it boots again.

Reported by:	hps
2008-04-20 23:29:06 +00:00
Warner Losh
aa037d58ea Take the first baby step towards unifying and cleaning up arminit():
- Pull all the code to deal with the trampoline stuff into one
	  centeralized place and use it from everywhere.
	- Some minor style tidiness

Reviewed by: tinguely
2008-04-03 16:44:50 +00:00
Warner Losh
e5a11098e8 Remove unnecessary #define. 2008-04-03 06:07:45 +00:00
Olivier Houchard
b94ba2b9c4 Add a missing \n. 2008-01-07 00:36:09 +00:00
Robert Watson
3de213cc00 Add a new 'why' argument to kdb_enter(), and a set of constants to use
for that argument.  This will allow DDB to detect the broad category of
reason why the debugger has been entered, which it can use for the
purposes of deciding which DDB script to run.

Assign approximate why values to all current consumers of the
kdb_enter() interface.
2007-12-25 17:52:02 +00:00
Stanislav Sedov
05a824e9fa - Fix a typo in comments.
MFC after:	1 week
Approved by:	cognet
2007-12-23 23:31:27 +00:00
Warner Losh
1981bc3b8a Actually program the interrupt controller for priorities. As we
support more AT91 platforms, we'll need to move this into some
platform init routine.
2007-12-19 17:34:17 +00:00
Kevin Lo
5497f4c53e Use M_NOWAIT instead of M_WAITOK to cause malloc() to return NULL
Reviewed by: imp
2007-12-17 05:08:54 +00:00
Stanislav Sedov
1e6774a44e - Don't return 0xffff if PHY id isn't equal 0. This allows PHYs with
non-zero addresses to be used.

Approved by:	cognet
MFC after:	2 weeks
2007-12-16 12:57:12 +00:00
Konstantin Belousov
89b57fcf01 Fix for the panic("vm_thread_new: kstack allocation failed") and
silent NULL pointer dereference in the i386 and sparc64 pmap_pinit()
when the kmem_alloc_nofault() failed to allocate address space. Both
functions now return error instead of panicing or dereferencing NULL.

As consequence, vmspace_exec() and vmspace_unshare() returns the errno
int. struct vmspace arg was added to vm_forkproc() to avoid dealing
with failed allocation when most of the fork1() job is already done.

The kernel stack for the thread is now set up in the thread_alloc(),
that itself may return NULL. Also, allocation of the first process
thread is performed in the fork1() to properly deal with stack
allocation failure. proc_linkup() is separated into proc_linkup()
called from fork1(), and proc_linkup0(), that is used to set up the
kernel process (was known as swapper).

In collaboration with:	Peter Holm
Reviewed by:	jhb
2007-11-05 11:36:16 +00:00
Warner Losh
855f957fc1 kill commented out line of code. 2007-10-29 21:01:50 +00:00
Olivier Houchard
ed0b604f1f Add an option to be able to override the value of the AT91 master clock
frequency. It'd be better to be able to calculate it at runtime, but we need
the information very early, to setup the uart.
2007-10-25 23:02:42 +00:00
Olivier Houchard
2b953358ed Move some KB920x-specific options into the KB920x file. 2007-10-25 22:57:19 +00:00
Olivier Houchard
9e753c174f Oooops, get the end of the memory right. 2007-10-25 22:43:17 +00:00
Olivier Houchard
cb3d8b2510 KERNBASE should really be KERNVIRTADDR there too.
MFC after:	1 week
2007-10-24 23:41:46 +00:00
Olivier Houchard
b7630a1145 In ate_get_mac(), try to get the mac address in the right order, at least
in the same order as it's set in ate_set_mac.
I remember a discussion about this on -arm, but apparently nothing was done.
Warner, is this wrong ?

X-MFC After:	proper review
2007-10-24 23:12:19 +00:00
Olivier Houchard
12e12ab1a8 Handle the case where PHYSADDR != KERNPHYSADDR (ie we do not load the kernel
at the beginning of the RAM).

MFC After:	1 week
2007-10-24 22:26:54 +00:00
Olivier Houchard
b2c9a0439a Correct a comment, this was not true anymore. 2007-10-24 22:24:32 +00:00
Warner Losh
5a4eb2d84b correct guard variable names. 2007-10-18 05:43:44 +00:00
Warner Losh
94ab036295 Kill bogus printf debugs.
Approved by: re@ (blanket)
2007-09-16 07:51:02 +00:00
Warner Losh
f672b4aee5 Kill overly verbose messages about setting bus width.
Approved by: re@ (blanket)
2007-09-16 07:48:58 +00:00
Warner Losh
3f0fd37320 Make USB work on the KB9202{,A,B} boards. This has been in p4 for about
7 months.  You must have JP6 in the 1-2 position to supply power to the
USB devices, but I've used uftdi, uplcom and umass successfully.  If you
have it in 2-3, then nothing will show up.  Also, if you have the FQPA
packaging for the AT91RM9200 (like the KN9202 boards have), you will get
the following message

uhub0: device problem (IOERROR), disabling port 2

due to a hardware erratum.  It is safe to ignore as it is about pins that
aren't brought out on the FQPA package and aren't proeprly terminated either.
Alas, there's no register to read to tell the FQPA from the BGA versions.

Submitted by: Daan Vreeken
Approved by: re (kensmith)
2007-07-31 17:43:18 +00:00
Warner Losh
a27980ccad Fix a spacing nit. 2007-06-11 19:36:37 +00:00
Marcel Moolenaar
e59febd747 Revert to the previous version where the return value of uart_getenv()
is being ignored. It's optional and the lack of environment variable
is not an error condition.
2007-06-04 17:53:42 +00:00
Olivier Houchard
9d480d9ede Remove duplicate includes.
Submitted by:   Cyril Nguyen Huu <cyril ci0 org>
2007-05-23 13:21:57 +00:00
Marcel Moolenaar
f8100ce2a7 Don't expose the uart_ops structure directly, but instead have
it obtained through the uart_class structure. This allows us
to declare the uart_class structure as weak and as such allows
us to reference it even when it's not compiled-in.
It also allows is to get the uart_ops structure by name, which
makes it possible to implement the dt tag handling in uart_getenv().
The side-effect of all this is that we're using the uart_class
structure more consistently which means that we now also have
access to the size of the bus space block needed by the hardware
when we map the bus space, eliminating any hardcoding.
2007-04-02 22:00:22 +00:00
Nick Hibma
f29fa1dfa4 Revisit the watchdogs: Resetting the error to EINVAL after failing to set the
watchdog might hide the succesful arming of an earlier one. Accept that on
failing to arm any watchdog (because of non-supported timeouts) EOPNOTSUPP is
returned instead of the more appropriate EINVAL.

MFC after:	3 days
2007-03-27 21:03:37 +00:00
Kevin Lo
45c4f0cbc3 Don't map mini-data cache page since ARM920T doesn't have it. 2007-03-27 06:29:19 +00:00
Warner Losh
bac394d579 MFp4: A bunch of patches from myself and Tisco to improve the
robustness of IIC transactions when parts aren't present.  This also
removes a bunch of debug.  This also moves this driver to 7-1
addressing rather than 6-0 addressing, which is more inline with all
the other iic drivers in the tree.  I've tested this for about a
million years on the systems at work.
2007-03-23 22:57:24 +00:00
Paolo Pisati
856e1ae84c o substitute INTR_FAST with FILTER in a panic message.
o wrap a BUS_SETUP_INTR() line at 80.
2007-03-06 10:55:57 +00:00
Paolo Pisati
b07b4f1229 Update bus_setup_intr().
Pointed by: Krassimir Slavchev
2007-03-01 09:10:55 +00:00
John Baldwin
552e9b06bb Use tsleep() rather than msleep() with a NULL mtx. 2007-02-27 17:15:39 +00:00
Paolo Pisati
2e35649225 Correct return code (int) for at91_rtc_intr() prototype.
Approved by: cognet
2007-02-27 13:39:34 +00:00
Paolo Pisati
23b5f6dc07 Fix attach of at91_pio() after bus_setup_intr() modification.
Reported and tested by: Krassimir Slavchev
2007-02-25 14:34:59 +00:00
Paolo Pisati
ef544f6312 o break newbus api: add a new argument of type driver_filter_t to
bus_setup_intr()

o add an int return code to all fast handlers

o retire INTR_FAST/IH_FAST

For more info: http://docs.freebsd.org/cgi/getmsg.cgi?fetch=465712+0+current/freebsd-current

Reviewed by: many
Approved by: re@
2007-02-23 12:19:07 +00:00
Max Laier
a1529123d9 Fix small altq related copy and paste error. 2007-02-10 15:43:58 +00:00
Warner Losh
984a9ada81 Add sanity check to make sure that the MAC address isn't all 0's. Bad
boot loaders can do this, and this leads to all kinds of ill effects
downstream.  Also, minor formatting nits.
2007-02-08 21:42:10 +00:00
Warner Losh
21389c94d9 at91_twi depends on the iicbus module to satisfy its symbols when
loaded, so make that explicit.  Works for the monolithic kernel case,
won't work for the kldload case.
2007-02-06 12:07:14 +00:00
Kevin Lo
1f35d9bfbd ether_ifattach() sets if_mtu to ETHERMTU, don't bother set it again.
Approved by: imp, cognet
2007-02-03 07:46:26 +00:00
Marius Strobl
97202af2dc - Add a uart_rxready() and corresponding device-specific implementations
that can be used to check whether receive data is ready, i.e. whether
  the subsequent call of uart_poll() should return a char, and unlike
  uart_poll() doesn't actually receive data.
- Remove the device-specific implementations of uart_poll() and implement
  uart_poll() in terms of uart_getc() and the newly added uart_rxready()
  in order to minimize code duplication.
- In sunkbd(4) take advantage of uart_rxready() and use it to implement
  the polled mode part of sunkbd_check() so we don't need to buffer a
  potentially read char in the softc.
- Fix some mis-indentation in sunkbd_read_char().

Discussed with:	marcel
2007-01-18 22:01:19 +00:00
Bernd Walter
dde6da66c5 MFp4: Use the next possible value for hz instead of defaulting to 128
Update tick value after modifying hz.
2007-01-05 02:52:06 +00:00
Bernd Walter
2e54a4ac40 MFp4: Make at91_rtc optional to allow other RTC choices 2007-01-05 02:06:53 +00:00
Bernd Walter
05a3e0db5c MFp4: Read access require PDC to be setup first otherwise we might get
overrun errors.
	Write access however need cmd first, so keep the existing order
	for them.
2007-01-05 01:18:32 +00:00
Bernd Walter
f291c40a40 MFp4: BWCT boards are using an 16MHz xtal 2007-01-05 01:14:14 +00:00
Bernd Walter
bd55b92b0e MFp4: Add VLAN_MTU support 2007-01-05 01:07:59 +00:00
Bernd Walter
3bb40db608 MFp4: fix a race in transmit buffer handling 2007-01-05 01:01:14 +00:00
Warner Losh
e79c6a301d MFp4: Fix bit name for SPI SR register 2007-01-01 00:50:25 +00:00
Warner Losh
5434a91804 MFp4: Remove watchdog timeout that appears to be unused. 2007-01-01 00:48:25 +00:00
Warner Losh
c36172be39 Merge from FreeBSD-tsf-6 by way of p4:
correct values for PIO registers

	submitted by: patrick schweiger
2007-01-01 00:46:54 +00:00
Nick Hibma
9079fff550 Align the interfaces for the various watchdogs and make the interface
behave as expected.

Also:
- Return an error if WD_PASSIVE is passed in to the ioctl as only
  WD_ACTIVE is implemented at the moment. See sys/watchdog.h for an
  explanation of the difference between WD_ACTIVE and WD_PASSIVE.
- Remove the I_HAVE_TOTALLY_LOST_MY_SENSE_OF_HUMOR define. If you've
  lost your sense of humor, than don't add a define.

Specific changes:

i80321_wdog.c
  Don't roll your own passive watchdog tickle as this would defeat the
  purpose of an active (userland) watchdog tickle.

ichwd.c / ipmi.c:
  WD_ACTIVE means active patting of the watchdog by a userland process,
  not whether the watchdog is active. See sys/watchdog.h.

kern_clock.c:
  (software watchdog) Remove a check for WD_ACTIVE as this does not make
  sense here. This reverts r1.181.
2006-12-15 21:44:49 +00:00
Olivier Houchard
ae89920ab9 Unbreak build for Skyeye: do not attempt to do any DMA, as Skyeye doesn't
emulate it.

Reported by:	ru
2006-12-07 00:24:15 +00:00
Julian Elischer
ad1e7d285a Threading cleanup.. part 2 of several.
Make part of John Birrell's KSE patch permanent..
Specifically, remove:
Any reference of the ksegrp structure. This feature was
never fully utilised and made things overly complicated.
All code in the scheduler that tried to make threaded programs
fair to unthreaded programs.  Libpthread processes will already
do this to some extent and libthr processes already disable it.

Also:
Since this makes such a big change to the scheduler(s), take the opportunity
to rename some structures and elements that had to be moved anyhow.
This makes the code a lot more readable.

The ULE scheduler compiles again but I have no idea if it works.

The 4bsd scheduler still reqires a little cleaning and some functions that now do
ALMOST nothing will go away, but I thought I'd do that as a separate commit.

Tested by David Xu, and Dan Eischen using libthr and libpthread.
2006-12-06 06:34:57 +00:00
Warner Losh
435620f10d MFp4:
formatting nit
2006-11-29 08:17:40 +00:00
Warner Losh
e8c8e11c08 Make this work a lot better:
Remove a lot of older cruft not needed.
	Improve ISR support, but it is still unused since polling is faster
	Properly initalize the speed register to get 90kb/s, not 400b/s.
	Try to catch NACK
	Allow 0 length read transfers to generate start/top pairs.
2006-11-29 08:15:59 +00:00
Warner Losh
ab45d28ce3 MFp4:
correct data counts so that we clock enough data for the spi
	transaction.  This allows complete spi transactions to happen.
2006-11-29 07:57:02 +00:00
Warner Losh
ff7447dae1 MFp4: Make it work :-)
o Don't delay when checking the done bits.  There's no gain other
	  than a small performance hit.
	o calculate the clock divisors better (things are still way slow,
	  so maybe there's more here?)
	o don't always fail reset.  Always succeed instead.
	o fix inverted logic around at91_twi_wait() return value
	o remove debug code
	o remove unneeded, unworking junk
2006-11-22 06:51:59 +00:00
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
Alan Cox
cc0d48ffb6 Eliminate unused global variables. 2006-11-11 20:57:52 +00:00
Warner Losh
8cd5dc08c3 MFp4:
o Fix the packet statistics
	o Make sure we set the FD bit when in full duplex
	o Improve TX side efficency by eliminating a data copy for
	  unfragmented mbufs (the hardware can't do s/g).
	o Minor busdma pedantry
	o better comments in some places, more XXX in others
	o Minor style nits.

This solves a problem I was seeing where I'd get no ethernet when not
booting with a NFS root.  Well, unless I unplugged the cable and
plugged it back in first so I'd get the same up down up messages I get
for NFS root...

Thanks to sam and scottl for suggestions on making this driver more
efficient through better use of approrpiate APIs.
2006-11-03 07:39:37 +00:00
John Birrell
8460a577a4 Make KSE a kernel option, turned on by default in all GENERIC
kernel configs except sun4v (which doesn't process signals properly
with KSE).

Reviewed by:	davidxu@
2006-10-26 21:42:22 +00:00
Warner Losh
bc8fe52e6d MFp4: Move the parameters that are basically dictated by the AT91
organization to that file.
2006-10-25 08:00:11 +00:00
Warner Losh
1b104c589a MFp4: Status register bits 2006-10-25 07:58:18 +00:00
Warner Losh
0f1c5aca64 MFp4: Working SPI driver. 2006-10-20 07:10:13 +00:00
Warner Losh
89975186a3 Commit WIP SSC driver, more work is needed here, but it configures
things OK.
2006-10-20 07:08:59 +00:00
Warner Losh
bfa94035b0 More register definitions. 2006-10-20 07:08:15 +00:00
Warner Losh
5f9c612ae7 Progress commit for getting TWI working 2006-10-20 07:06:39 +00:00
Warner Losh
56878d42da Add sysctl to export current state of rmii vs mii configuraiton.
Fix a typo in resource allocation.
2006-10-20 07:04:56 +00:00
Warner Losh
e352ac0afb Add configuration of the SSC lines for second SSC. 2006-10-20 07:03:57 +00:00
Warner Losh
e41e815e5c MMC/SD bridge driver (host adapter) for AT91RM9200's MCI interface.
This interface also appears in the AT91SAM9260 and '61 as well as the
AVR32 based micros from Atmel.  We don't yet support write protect or
hot-swap in this bridge driver.
2006-10-20 06:44:04 +00:00
Warner Losh
656595aa63 MFp4: first cut at getting I2C transfers working (generically). I'm
unsure if this driver correctly implements all the start/stop junk
right (but it did or didn't before I made this commit).
2006-09-07 21:53:28 +00:00
Warner Losh
5dced01e59 MFp4: berndt pointed me at an errata that shows that the stat register
offsets were originally documented incorrectly.  This fixes that.  It
shouldn't affect anything other than error stat reporting.
2006-09-07 21:50:01 +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
223d2768ad Do not create dma maps with bus_dmamap_create, as we call
bus_dmamem_alloc later which will overwrite the value, leading to a small
memory leak.
2006-08-25 13:38:42 +00:00
Warner Losh
27e13f2b3e Hook into the watchdog device, if present. Also, turn off the
watchdog timer stuff when we boot because the boot blocks are turning
it on...
2006-08-09 20:58:55 +00:00
Olivier Houchard
49953e11d7 Rewrite ARM_USE_SMALL_ALLOC so that instead of the current behavior, it maps
whole the physical memory, cached, using 1MB section mappings. This reduces
the address space available for user processes a bit, but given the amount of
memory a typical arm machine has, it is not (yet) a big issue.
It then provides a uma_small_alloc() that works as it does for architectures
which have a direct mapping.
2006-08-08 20:59:38 +00:00
Kevin Lo
400e3077d8 Remove a bogus i = 0.
Approved by: cognet
2006-08-08 01:18:18 +00:00
Olivier Houchard
f9ad2af361 Use virtual_avail instead of freemempos as the starting point of the available
physical memory, as the vm uses the memory between freemempos and
virtual_avail.

MFC After:	3 days
2006-07-25 23:07:35 +00:00
Olivier Houchard
bba93a0066 Fix ALT_BREAK_TO_DEBUGGER on the AT91 :
The core uart code expects the receive method to actually puts the
characters read into its buffers. For AT91, it's done in the ipend routine,
so also check if we have the alternate break sequence here.

MFC after:	3 days
2006-07-20 21:03:43 +00:00
Olivier Houchard
9488796360 If we can't defrag a packet, re-queue it instead of dropping it. 2006-07-17 21:36:08 +00:00
Olivier Houchard
0769e20256 #if => #ifdef 2006-07-17 21:20:00 +00:00
Olivier Houchard
22e1aadef7 Add a comment explaining why the OHCI mapping has been commented out. 2006-07-15 00:09:53 +00:00
Warner Losh
8397a1b15c MFp4: this now depends on new spi bus stuff 2006-07-14 22:41:54 +00:00
Warner Losh
382ff28ef2 MFp4: tweaks 2006-07-14 22:40:24 +00:00
Warner Losh
2b85629b2f MFp4: elevate quality of slow clock a little 2006-07-14 22:31:12 +00:00
Warner Losh
872a109182 MFp4: paren police 2006-07-14 22:30:44 +00:00
Warner Losh
546bbbb56f MFp4:
Introduce framework to configure the multiplexed pins on boot.

	Since the USART supprots RS-485 multidrop mode, it allows the
	TX pins to float.  However, for RS-232 operations, we don't
	want these pins to float.  Instead, they should be pulled up
	to avoid mismatches.  Linux does something similar when it
	configures the TX lines.  This implies that we also allow the
	RX lines to float rather than be in the state they are left in
	by the boot loader.  Since they are input pins, I think that
	this is the right thing to do.

	Plus minor for our board.
2006-07-14 22:22:57 +00:00
Warner Losh
fa543fe2fa MFp4:
Fix typo in RTC_CALR_MK.
2006-07-14 22:06:01 +00:00
Warner Losh
92c23aea4a The TSC board uses a 16MHz base clock for the AT91RM9200, while the Kwikbyte
board uses a 10MHz base clock.  Cope with this difference.
2006-07-14 22:01:51 +00:00
Warner Losh
375906f555 Implement the set_time function. Rather pointless with this RTC, as it
resets when the core resets, but there may be some use for it...
2006-07-14 21:37:19 +00:00
Warner Losh
21caaf799a MF p4:
Adapt to forthcoming spi framework.  The ioctls for SPI commands and such
belong in the higher level driver.
2006-07-14 21:35:59 +00:00
Warner Losh
567314271b Be sure to flush the cache after a partial read on timeout. Expand
comments about timeouts.  Fix a style nit.  Sometimes small messages
were getting corrupted.
2006-07-14 21:33:04 +00:00
Warner Losh
7d73db6491 Move some of the common parameters into the std. files for this platform.
Also migrate from MD disk to NFS boot.
2006-07-14 15:20:31 +00:00
Olivier Houchard
8f395fae42 Comment out the mapping of the OHCI controller registers va == pa. This
address is in the userland address space. The proper thing is either to choose
a virtual address in the kernel address space beyond the KVA, or to use
pmap_mapdev().
2006-07-12 00:48:50 +00:00
Warner Losh
7fd083a540 Add support for configuring pins to be one of {GPIO, PERIPHERAL A or
PERIPHERAL B}, as well as direction of GPIO pin.  Add defines for all
the pins.
2006-07-02 03:50:44 +00:00
Warner Losh
d8927f1396 MFp4:
Make serial ports more robust and reliable.  Make non-console ports
work.  This might have broken skyeye stuff.

o Introduce ping-pong receive buffers.
o Use DMA to copy characters directly into memory.
o Support baud rates other than 115200
o Use 1 stop bit when 1 stop bit is requested (otherwise 2 were used,
  which caused dropped characters when received in bursts).
o Use 1.5 stop bits for 5-bit bytes, and 2 stop bits otherwise when 2
  stop bits were requested.
o Actually update line parameters.
o Fix comments
o Move init into attach
o Tweaks to TX interrupt registers to get them reliable and non-storming.
o harvest data in ipend since the latency between it and the callback
  was too long.  This likely is how it should be, I don't know why I deferred
  things to the callback before.
o disable all interrupts in console init.  We don't want interrupts until
  we turn on an ISR.
o cosmetic tweaks
o Automatically detect of the TIMEOUT interrupt is supported.  If so, use
  it so we get better CPU utilization.  Otherwise do a character at a time
  RX.  Good news here is that it seems we have enough CPU and low enough
  fast interrupt latency to do this reliably.
o Don't read USART_CR.  It is a write-only register.
o start to implement bus_ioctl.  Do BAUD now...
2006-07-02 03:45:33 +00:00
Olivier Houchard
39a0c069fa Backout previous commit, Warner committed at91_pio.c... 2006-06-23 23:07:11 +00:00
Olivier Houchard
e45fb59abe Comment out at91_pio.c, it's not in CVS. 2006-06-23 22:30:55 +00:00
Warner Losh
c0386612b8 Compute physmem so we can print it correctly on boot.
Slightly optimize while I'm here.
2006-06-20 23:40:04 +00:00
Warner Losh
57dc2664ef Probe the memory size of the board better. Look at the bus width,
number of banks, rows and columns the SDRAMC is programmed to access
to determine the RAM size for the board, rather than hard-wiring it to
be 32MB.  My company's board with 64MB now probes correctly, as does
the KB9202 with only 32MB.  This means that to detect the right memory
size, our boot loader must correctly initialize these values.  This is
a fairly safe assumption because the boot loader has to initialize
SDRAM already, and it isn't really possible to change this register
after we've accessed SDRAM.
2006-06-20 20:13:40 +00:00
Warner Losh
aee1351504 Carefully note the RMII bit in the config register at attach time.
The boot loader is supposed to leave this bit set to the right value
for the board.  If this bit was set at attach time, use it to init the
config register correctly.

Note: this means the boot loader has to properly initialize it.
2006-06-17 23:24:35 +00:00
Warner Losh
0ca5ce8fee improve reporting of clocks 2006-06-17 23:22:10 +00:00
Olivier Houchard
9464ffd0a4 MFp4: Increase the L1 pagetable needed for the kernel from 8 to 22, to be
able to boot fat kernels.
2006-06-12 22:57:24 +00:00
Warner Losh
3dcdad9a11 Remove sa1_cache_clean_addr. It isn't needed.
Submitted by: kevlo
2006-06-07 05:36:10 +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
Olivier Houchard
053105371f Get this to compile :
- The prototype of uart_bus_probe() hasn't been changed in cvs yet, so use the
old one.
- Add at91_pdcreg.h, needed by uart_dev_at91usart.c.
2006-05-11 14:30:28 +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
Olivier Houchard
602c85541e MFp4: Catchup with recent UART changes. 2006-04-06 20:47:54 +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
723c740a55 Connect twi to the FreeBSD iicbus infrastructure. 2006-04-06 04:31:19 +00:00
Warner Losh
222c969f16 Pull in numerous fixes from myself and cognet. With these fixes the
KB9202 eval board is finally stable with a nfs root.
2006-04-06 04:30:23 +00:00
Warner Losh
f535b19502 Remove unused bit definitions.
Minor style cleanup while I'm here.
2006-04-06 04:29:24 +00:00
Warner Losh
b2e16e9338 Optimize the TX side of the part by using the PDC to move bytes out to
the wire.  This increases the speed considerably.  Start to put
infrastructure in place to do RX side, but that requires more study
before it can be done.
2006-04-06 04:27:19 +00:00
Warner Losh
e40dc9a60d Skeleton support for the SSC device, which implements I2S interfaces,
amoung others.
2006-03-24 07:42:33 +00:00
Warner Losh
60a5289836 Skeleton PIO support. 2006-03-24 07:39:29 +00:00
Warner Losh
c44fe487c2 Add the sekelton of support for the Power Management Controller. 2006-03-24 07:37:56 +00:00
Warner Losh
72ec44a573 Add rtc to files.at91 2006-03-24 07:36:23 +00:00
Warner Losh
74e4c374f2 Add RTC support. This may be of dubious value since the RTC is reset
to 1998 every reboot.
2006-03-24 07:35:30 +00:00
Olivier Houchard
5207a211b3 MFp4: Don't force single-user now we can go multi-user.
Call cninit() only after the pagetable has been set, as locore.S won't
map the system device for us anymore.
2006-03-22 22:31:31 +00:00
Olivier Houchard
a1de0396bd MFp4: teach the KB920x bits how to know where the ELF trampoline puts the
strtab and the symtab.
2006-03-22 21:16:51 +00:00
Olivier Houchard
eea877f42d MFp4: Handle break interrupts (it seems to only work for USART, not DBGU). 2006-03-22 21:16:09 +00:00
Warner Losh
36dd3fdf9e MFp4:
Add bus attachment for the ohci device on this chip.  The bus and hub
are detected correctly, but the children devices aren't detected
correctly for reasons unknown.
2006-03-18 01:45:29 +00:00
Warner Losh
1b0561a15d Add ohci controller mapping. 2006-03-18 01:43:54 +00:00
Warner Losh
2dc738a640 MFp4:
o update TODO list
o Better use of busdma
o mark RX dtors as COHERENT.  This helps performance a lot by not requiring
  so many EXPENSIVE cache flushes.  The cost of accessing it non-cached
  is much smaller.
o Copy data from Rx buffers to make IP header 4 byte aligned.
o CRC length included in reported length, so cope
o Don't free TX buffer twice
o Manage TX buffers better.
o Enable just the interrupts we want.
o Manage OACTIVE better

# Some of these done by cognet
# These changes let us get to # via NFS root.
2006-03-18 01:43:25 +00:00
Warner Losh
a9e7d93f31 MFP4:
Gratuitously sort alphabetically.
2006-03-18 01:39:23 +00:00
Warner Losh
f54a134552 MFP4:
GC and fix definitions.

# some of this may have been done by cognet
2006-03-18 01:38:25 +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
5bcedfaa73 MFp4:
o Disable all interrupts that the ST can generate until we have an ISR
  to service them.
o Correct clock calculation to make DELAY the right length...

Submitted by: cognet (#2)
2006-03-18 01:30:31 +00:00
Olivier Houchard
493be2ca17 Get this to compile with the recent UART changes. 2006-02-27 23:19:13 +00:00
Warner Losh
2f415ac34d These files apply to all the atmel parts that freebsd is going to run on,
so name them more generically.  If we do support the MMU-less ARM7 parts,
then we'll need to, at that time, expand the files we have.
2006-02-17 22:33:13 +00:00
Warner Losh
77017e63bb This file was obsolete when committed. Catchup and delete it. 2006-02-17 22:23:36 +00:00
Warner Losh
e1fa2d9556 Use the correct address for the ohci device. 2006-02-11 03:58:07 +00:00
Olivier Houchard
e56b7f20a0 Set the MAC address after we just read it at attach time, as it seems needed. 2006-02-07 21:31:13 +00:00
Olivier Houchard
9bfe35c80d Set m_pkthdr.len and m_pkthdr.rcvif. 2006-02-07 20:48:52 +00:00
Olivier Houchard
ea9f99ddcd - Call mii_phy_probe() after we allocated an ifp. mii has this evil
hack where it assumes the first field of the driver softc is the struct
ifnet, and it copies its value in mii_phy_probe().
- In the interrupt handler, set the mbuf m_len field on packet receive.
2006-02-06 22:17:42 +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