Commit Graph

179 Commits

Author SHA1 Message Date
Warner Losh
6af05bc921 Remove now-redundant declaration. 2009-01-22 21:55:04 +00:00
Warner Losh
5d5516e7b7 Store at91_master_clock in a global variable as opposed to a compile
time constant.  This allows us to potentially change it at runtime or
autodetect it early in the boot (the latter being much more likely to
have a good outcome).
2009-01-22 21:54:26 +00:00
Warner Losh
c5fb414e0a o The f_max is really at91_master_clock / 2, not 30MHz, so compute it as such.
o Only set 4-bit caps on those boards that have 4-bit caps (this means that
  because we don't set wire4 yet, this forces us to always use 1-bit bus).
o Don't test wire4 when setting up the bus width, since bad things will
  happen if we do.

# This likely won't fix the busted at91 sd card support, but these are
# needful changes for correctness.
2009-01-21 17:39:11 +00:00
Alexander Motin
96dfc86948 Implement MMCBR_IVAR_CAPS. It should better be implemented, or results
can be unpredictable.

PR:		arm/128987
2009-01-20 17:36:58 +00:00
Stanislav Sedov
129c518d68 - Fix spelling error in comments.
PR:		arm/128891
Submitted by:	Pavel Pankov <pankov_p@mail.ru>
Approved by:	kib (mentor)
2008-12-01 10:16:25 +00:00
Stanislav Sedov
2f2cadc3cc - Get rid of extra include file, erroneously added by the
previous commit. This include file was required by the
  first version of the patch.

Approved by:	kib (mentor, implicit)
2008-11-30 22:40:11 +00:00
Stanislav Sedov
b739b60532 - Obtain main clock frequency dynamically based on CKGR_MCFR register
contents.
- It is possible to override the dynamic configuration by using
  AT91C_MAIN_CLOCK option in kernel config.

PR:		arm/128961 (based on)
Submitted by:	Bjorn Konig <bkoenig@alpha-tierchen.de>
Reviewed by:	imp
Approved by:	kib (mentor, implicit)
2008-11-30 22:33:03 +00:00
Warner Losh
1303699e77 opt_at91.h isn't needed here at all anymore, since the board init
routines have been split out.  Remove it.  This leaves only one
instance of it in the tree that will be going away soon.
2008-11-30 17:40:05 +00:00
Warner Losh
7558f3d5f0 Convert BWCT and HL200 over to new board mechanism as well. The
TSC4370 config file wasn't committed to this tree, so I don't know if
my changes will work on it or not.
2008-11-25 19:05:46 +00:00
Warner Losh
26d9c85a3a Start to make it easier to add AT91RM9200 based boards:
o Copy kb920x_machdep.c to at91_machdep.c
o Move board_init to new board_kb920x.c
o rename ramsize to at91_ramsize and make it accessible to board_* files.
o Delete files.kb920x.  We can do this selection with the new boards.
o Add a stub for the tsc4370 board init, which will be added in
  a future commit.
o Add new 'devices' at91_board_kb920x and at91_board_tsc4370.  More are
  needed and will be added in future commits.

Reviewed by:	stass, cognet
2008-11-25 18:40:40 +00:00
Warner Losh
88ae88e624 Whitespace nit. 2008-11-25 16:38:10 +00:00
Warner Losh
dfabb37be2 Save boot args. 2008-11-25 05:17:39 +00:00
Warner Losh
b1eca4094b more silly whitespace changes. 2008-11-25 05:12:19 +00:00
Warner Losh
78ef2907ec Fix various whitespace botches, mostly having them at the end of a line. 2008-11-25 00:48:15 +00:00
Warner Losh
f36b390692 Replace disclaimer with the one from COPYRIGHT. Joint authors aggreed
to the change.
2008-11-25 00:14:49 +00:00
Warner Losh
b815a08728 Replace three magic constants with L1_S_SIZE, since that's what is
really meant in those places.
2008-11-25 00:14:14 +00:00
Warner Losh
82645a84eb Tweak the disclaimer section of the license to match COPYRIGHT, for
better or worse.  Ok'd by folks that have additional copyrights to the
files in cases where there's joint authorship.
2008-11-25 00:13:26 +00:00
Stanislav Sedov
ec5556611c - Fix two minor errors in at91 code.
PR:		arm/128959
Submitted by:	Bjorn Konig <bkoenig@alpha-tierchen.de>
Approved by:	kib (mentor)
2008-11-18 12:42:59 +00:00
Alexander Motin
3a4a255741 Allow card reader bridge driver to report maximum supported transfer size.
sdhci supports up to 65535 blocks transfers, at91_mci - one block.

Enable multiblock operations disabled before to follow at91_mci driver
limitations.

Reviewed by:	imp@
2008-10-29 20:01:26 +00:00
Stanislav Sedov
e06d0e0a92 - Add stream bus_space operations.
Reviewed by:	cognet
Approved by:	kib (mentor, implicit)
MFC after:	1 week
2008-10-26 22:53:59 +00:00
Stanislav Sedov
baf7d37113 - Add a missing NULL-pointer check.
Reviewed by:	cognet
Approved by:	kib (mentor, implicit)
MFC after:	3 days
2008-10-26 22:52:57 +00:00
Warner Losh
2bfca5e908 Use bus_get_dma_tag() instead of NULL here. Not really needed for atmel
at the moment, but it is more correct.
2008-10-07 17:23:16 +00:00
Warner Losh
cc35bcd157 Properly implement read only. Also, the caps implementation is wrong
here, so I'm backing it out.
2008-09-30 02:32:41 +00:00
Warner Losh
093bb0f8cf Implement MMCBR_IVAR_CAPS for AT91 MCI device.
Submitted by:	mav@ (well, not this one, but the base impl was)
2008-09-28 23:37:56 +00:00
Warner Losh
8691fc004b Turn some lame pseudo-code into a less lame comment. 2008-09-05 22:30:59 +00:00
Warner Losh
5fdde3724c Kill bogus #if 0'd stuff for interrupts. They don't happen, and this
driver will need more serious help to work with an interrupt driven
path.  There's many subtleties in driving the DMA engine with
interrupts in many configurations.  Best to not "guess" what the right
way would be and mislead people.
2008-09-05 22:29:50 +00:00
Warner Losh
e704206e27 Kill vestiges of the special case code we once had in place for usb
memory allocation.  It was change to include the range in the normal
memory area, so these ifdef'd out special cases are no longer useful
to keep around.
2008-09-05 22:27:10 +00:00
Warner Losh
9df90e6ba5 Kill bogus #if 1. There's no need for it since usb works these days. 2008-09-05 22:23:41 +00:00
Warner Losh
fcce278bf2 Use a locally assigned address rather than stealing Atmel's which
might cause a conflict...
2008-08-31 18:20:01 +00:00
Stanislav Sedov
a0ac6fc0bc - Fix comment.
- Set U/L bit of generated ethernet address to 1 to not
  clash with Atmel assigned addresses.

Suggested by:	yar
Approved by:	kib (mentor)
2008-08-31 09:28:49 +00:00
Stanislav Sedov
0787c9a03f - Try to look for MAC address in all SA registers, not only in the
first one. U-boot, for example, uses the second register to store
  MAC.[1]
- Use random MAC address if none configured instead of failing.

Submitted by:	Bjorn Konig <bkoenig@alpha-tierchen.de> [1]
Reviewed by:	imp
Approved by:	kib (mentor)
MFC after:	1 week
2008-08-30 15:16:40 +00:00
Stanislav Sedov
ae8b75dddb - Style fix.
Approved by:	kib (mentor)
MFC after:	1 week
2008-08-30 15:04:53 +00:00
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