Commit Graph

941 Commits

Author SHA1 Message Date
Rafal Jaworowski
65d75768c3 ARM pmap style(9) and cosmetics. 2008-11-06 16:28:28 +00:00
Rafal Jaworowski
71f00bea66 Auto-size kernel page tables allocation on Marvell systems.
This allows mini dumps to fully work for these platforms.

Obtained from:	Juniper Networks, Semihalf
2008-11-06 16:25:12 +00:00
Rafal Jaworowski
8e321b7943 Support kernel crash mini dumps on ARM architecture.
Obtained from:	Juniper Networks, Semihalf
2008-11-06 16:20:27 +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
Dag-Erling Smørgrav
1ede983cc9 Retire the MALLOC and FREE macros. They are an abomination unto style(9).
MFC after:	3 months
2008-10-23 15:53:51 +00:00
Marcel Moolenaar
1706f03059 Add arm/conf/DEFAULTS and populate it with:
machine arm
        device  mem
        options GEOM_BSD
        options GEOM_MBR

Remove the first two from all kernel configuration files and
change geom_bsd and geom_mbr from standard to optional.
2008-10-23 01:51:55 +00:00
Rafal Jaworowski
df38b76405 Eliminate flushing of L2 cache in ARM context switch routines.
With VIPT L2 cache such syncing not only is redundant, but also a performance
penalty.

Pointed out by:	cognet
2008-10-16 19:06:24 +00:00
Sam Leffler
0c7b0d4568 correct sizeof calculation
PR:		arm/128095
Submitted by:	Henning Petersen
MFC after:	1 week
2008-10-14 16:27:52 +00:00
Rafal Jaworowski
0ed948780c Initial support of loader(8) for ARM machines running U-Boot.
This uses the common U-Boot support lib (sys/boot/uboot, already used on
FreeBSD/powerpc), and assumes the underlying firmware has the modern API for
stand-alone apps enabled in the config (CONFIG_API).

Only netbooting is supported at the moment.

Obtained from:	Marvell, Semihalf
2008-10-14 10:11:14 +00:00
Rafal Jaworowski
d0ee9aab8e Add kernel config files for Marvell development boards.
FreeBSD 8-CURRENT was tested and run successfully on the following eval
boards and devices :

  * DB-88F5182, DB-88F5281 (Orion based)

  * DB-88F6281, RD-88F6281 (Kirkwood based)

  * DB-78100 (Discovery based)

For more detailed info on build instructions and other examples please refer
to http://wiki.freebsd.org/FreeBSDMarvell

Obtained from:	Marvell, Semihalf
2008-10-14 08:18:27 +00:00
Rafal Jaworowski
373bbe25ff Introduce basic support for Marvell families of system-on-chip ARM devices:
*  Orion
     - 88F5181
     - 88F5182
     - 88F5281

  * Kirkwood
     - 88F6281

  * Discovery
     - MV78100

The above families of SOCs are built around CPU cores compliant with ARMv5TE
instruction set architecture definition. They share a number of integrated
peripherals. This commit brings support for the following basic elements:

  * GPIO
  * Interrupt controller
  * L1, L2 cache
  * Timers, watchdog, RTC
  * TWSI (I2C)
  * UART

Other peripherals drivers will be introduced separately.

Reviewed by:	imp, marcel, stass (Thanks guys!)
Obtained from:	Marvell, Semihalf
2008-10-13 20:07:13 +00:00
Rafal Jaworowski
dd891816df One more L2 cache synchronization call that didn't make the previous commit. 2008-10-13 19:14:14 +00:00
Rafal Jaworowski
62a5c95054 Provide L2 cache synchronization (write back + invalidation) on ARM.
Note the cpu_l2cache_wbinv_* routines are no-ops on systems not populated with
L2 caches.

Obtained from:	Marvell, Semihalf
2008-10-13 18:59:59 +00:00
Rafal Jaworowski
5289eda203 Do not use cached page for temporary mapping in pmap_zero_page_generic()
The physical page which we clear is accessed via additional temp kernel
mapping for the period of zeroing operation. However in systems with virtual
d-cache (most ARMs) when write-allocate feature is enabled, we can have
modified but unflushed content pertaining to this physical page still in the
d-cache due to its primary (pre-existing) mapping. In such scenario that
cached content upon flush is likely to overwrite [portions of] the physical
page we want to zero here..

This is a general problem with multiple virtual mappings covering the same
physical page with write-allocate and virtual d-cache: there is inherent
potential for corruptions of this kind, which are not easily resolved; it is
best policy that such multiple mappings be not allowed.

Obtained from:	Marvell, Semihalf
2008-10-13 18:42:25 +00:00
Rafal Jaworowski
ba6faad63c Introduce low-level support for new Marvell core CPUs: 88FR131, 88FR571.
They are compliant with ARMv5TE and integrated on 88F6281 (Kirkwood) and
MV78100 (Discovery) system-on-chip families.

Obtained from:	Marvell, Semihalf
2008-10-13 18:16:54 +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
Bruce M Simpson
db494010a3 Allow static hints to override kenv. 2008-10-02 22:31:30 +00:00
Peter Wemm
e6592ee55c Collect N identical (or near identical) mkdumpheader() implementations into
one, as threatened in the comment.  Textdump magic can be passed in.
2008-10-01 22:08:53 +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
59574d9379 White space nit. 2008-09-28 05:36:25 +00:00
Ed Schouten
6bfa9a2d66 Replace all calls to minor() with dev2unit().
After I removed all the unit2minor()/minor2unit() calls from the kernel
yesterday, I realised calling minor() everywhere is quite confusing.
Character devices now only have the ability to store a unit number, not
a minor number. Remove the confusion by using dev2unit() everywhere.

This commit could also be considered as a bug fix. A lot of drivers call
minor(), while they should actually be calling dev2unit(). In -CURRENT
this isn't a problem, but it turns out we never had any problem reports
related to that issue in the past. I suspect not many people connect
more than 256 pieces of the same hardware.

Reviewed by:	kib
2008-09-27 08:51:18 +00:00
Konstantin Belousov
a8d403e102 Change the static struct sysentvec and struct Elf_Brandinfo initializers
to the C99 style. At least, it is easier to read sysent definitions
that way, and search for the actual instances of sigcode etc.

Explicitely initialize sysentvec.sv_maxssiz that was missed in most
sysvecs.

No objection from:	jhb
MFC after:	1 month
2008-09-24 10:14:37 +00:00
Olivier Houchard
34ba28d182 Bandaid: disable interrupts to make sure intr_enabled and the IER register
are in sync. I'm not sure why it is needed, and why it wouldn't be on other
arm platforms, but it prevents a lockup under heavy I/O.
2008-09-11 20:43:38 +00:00
Olivier Houchard
5ac74cc6e4 Remove the unused field "pc_prvspace" from the MD fields for the struct
pcpu. There's not even a thing such as a "struct pcup".
While I'm there, remove a comment that makes no sense for arm.

Spotted out by:	Mark Tinguely
2008-09-11 20:39:46 +00:00
Rafal Jaworowski
217d7296a8 ARM nexus style(9) improvements. 2008-09-11 12:39:54 +00:00
Rafal Jaworowski
f4e42148d7 ARM interrupts improvements.
- Fix nexus_setup_intr() abuse of setting up multiple IRQs in one go. Calling
  arm_setup_irqhandler() in loop is bogus, as there's just one cookie given
  from the caller and it is overwritten in each iteration so that only the
  last handler's cookie value prevails.

- Proper intr masking/unmasking handling: the IRQ source is masked at PIC level
  only after the last handler has been removed from the list.

Reviewed by:	cognet, imp, sam, stass
Obtained from:	Grzegorz Bernacki gjb ! semihalf dot com
2008-09-11 12:36:13 +00:00
Rafal Jaworowski
e29b1b389b IXP425: split handling of the two QMGR interrupts so they are separately
managed. Adjust ixpqmgr_{attach,detach} to comply with device_* interface.

Reviewed by:	cognet, imp, sam, stass
Tested by:	cognet
2008-09-11 12:17:21 +00:00
Warner Losh
7217c39672 Commit the no-brainer parts of my space saving kernel experiments. We
don't inline the locking primitives, and only grab those parts of mii
that we really need.  Other space optimizations are too agressive for
the generic file (removing all of usb, and loading it as kernel
modules).
2008-09-08 00:41:32 +00:00
Warner Losh
33b4ae7d79 Minor cleanup of this config file:
o It has been tested only on KB9202, KB9202A and KB9202B boards
o Better comments about hints
o option<space><tab>
o Add newer SX_NOINLINE option.
o Fix a few comments
2008-09-07 18:55:55 +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
5f00fec406 Whitespace nit. 2008-08-23 23:35:08 +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
70d12a18f2 Export 'struct pcpu' to userland w/o requiring _KERNEL. A few ports
already define _KERNEL to get to this and I'm about to add hooks to
libkvm to access per-CPU data.

MFC after:	1 week
2008-08-19 19:53:52 +00:00
Bjoern A. Zeeb
603724d3ab Commit step 1 of the vimage project, (network stack)
virtualization work done by Marko Zec (zec@).

This is the first in a series of commits over the course
of the next few weeks.

Mark all uses of global variables to be virtualized
with a V_ prefix.
Use macros to map them back to their global names for
now, so this is a NOP change only.

We hope to have caught at least 85-90% of what is needed
so we do not invalidate a lot of outstanding patches again.

Obtained from:	//depot/projects/vimage-commit2/...
Reviewed by:	brooks, des, ed, mav, julian,
		jamie, kris, rwatson, zec, ...
		(various people I forgot, different versions)
		md5 (with a bit of help)
Sponsored by:	NLnet Foundation, The FreeBSD Foundation
X-MFC after:	never
V_Commit_Message_Reviewed_By:	more people than the patch
2008-08-17 23:27:27 +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
Olivier Houchard
c611e0d78c Do not modify td->td_intr_nesting_level, it is now done in the MI code.
This fixes the cpu time being falsely reported as interrupt time.

MFC after:	3 days
2008-08-04 20:29:39 +00:00
Rafal Jaworowski
1cba14c456 Fix ARM nocache allocator:
- let the loop iterate every page (as intended), and not some multiplies
  (which led to a fake exhaustion of the ARM_NOCACHE_KVA_SIZE)

- eliminate using MIN(): it compared number of pages vs. address
  (ARM_TP_ADDRESS), which was bogus

Reviewed by:	cognet, imp
Obtained from:	Piotr Ziecik kosmo ! semihalf dot com
MFC after:	3 days
2008-08-04 14:47:49 +00:00
Olivier Houchard
cf1f6a4da0 Remove unneeded #include <stdlib.h> (?)
MFC after:	3 days
2008-08-04 14:37:32 +00:00