Commit Graph

503 Commits

Author SHA1 Message Date
Gleb Smirnoff
41a7572b26 Functions m_getm2() and m_get2() have different order of arguments,
and that can drive someone crazy. While m_get2() is young and not
documented yet, change its order of arguments to match m_getm2().

Sorry for churn, but better now than later.
2013-03-12 13:42:47 +00:00
Gleb Smirnoff
9ccde34069 Use m_get2() to get an mbuf of appropriate size.
Reviewed by:	marius
Sponsored by:	Nginx, Inc.
2013-03-12 10:05:36 +00:00
Alan Cox
6147fb3cff Eliminate a redundant #include: machine/pmap.h is already included
through vm/pmap.h.
2013-02-26 07:41:34 +00:00
Attilio Rao
590f9303e5 Merge from vmobj-rwlock branch:
Remove unused inclusion of vm/vm_pager.h and vm/vnode_pager.h.

Sponsored by:	EMC / Isilon storage division
Tested by:	pho
Reviewed by:	alc
2013-02-26 01:00:11 +00:00
Alan Cox
5c9f7b1a91 Initialize vm_max_kernel_address on non-FDT platforms. (This should have
been included in r246926.)

The second parameter to pmap_bootstrap() is redundant.  Eliminate it.

Reviewed by:	andrew
2013-02-20 16:48:52 +00:00
Gleb Smirnoff
eb1b1807af Mechanically substitute flags from historic mbuf allocator with
malloc(9) flags within sys.

Exceptions:

- sys/contrib not touched
- sys/mbuf.h edited manually
2012-12-05 08:04:20 +00:00
Marcel Moolenaar
f896ce74e6 Unbreak building a kernel with EHCI: there's no ehci_atmelarm.c. 2012-11-26 23:30:47 +00:00
Warner Losh
86c3bcbb97 Reduce differences between these two initarms a bit more. 2012-11-08 04:02:36 +00:00
Warner Losh
8eece22e2d Minor cosmetic changes to bring atmel's initarm and the default
initarm for FDT closer together.  More to follow.
2012-11-07 16:59:12 +00:00
Warner Losh
c558b53ec8 Loop reading the RTC registers until the same values are obtained
twice, as advised in the atmel docs.

Submitted by:	Ian Lapore
2012-10-07 20:36:46 +00:00
Warner Losh
71d97412d0 Improve a few comments. 2012-10-07 02:08:19 +00:00
Warner Losh
6859e74003 Use the RTC unit to get the time. This works on all known AT91SAM9*
processors, either on reboot or after power down with battery backup.
However, the AT91RM9200 RTC always resets on reboot making it just
about useless at the moment (if we support a low-power mode or an
extended sleep mode, it might become useful).

Submitted by:	Ian Lepore
2012-10-07 01:58:32 +00:00
Andrew Turner
1161298251 Create a common set_stackptrs in sys/arm/machdep.c.
On single core devices set_stackptrs is only ever called with cpu = 0 in
initarm and will be identical to the existing function. On SMP this needs
to be implemented for sys/arm/mp_machdep.c, but the implementations are
identical for each SoC.
2012-09-22 06:41:56 +00:00
Warner Losh
f22f156e0b Make this work on the AT91SAM9G20:
o Disable multi-block operations: they sometimes fail.
o Don't use the PROOF bits yet: they hang the system hard.
o Disable the the multi-block operations for !rm9200, but it
  still doesn't help.
o Fix writing < 12 bytes errata to actually work.
o Enable, for the moment, reporting extra bytes soaked up.
2012-08-29 06:42:39 +00:00
Warner Losh
683bb97c9f When copying data, use memcpy instead of bcopy. It matches the
arguments better.
Also, set the need to use the workaround flag before we actually need
to use it, rather than after.
2012-08-29 04:41:25 +00:00
Warner Losh
062223cd29 Make AT91_MCI_ALLOW_OVERCLOCK a real option. Rename old use 30MHz to
this new option.  Only try to use > 25MHz when our best frequency is <
15MHz and overclocking is enabled. Fix minor style chaff.
2012-08-28 17:27:46 +00:00
Warner Losh
d7f8f1facd Clip the upper end to 31MHz for slow clock speeds. On faster
machines, we wind up with a 66MHz clock, which is too fast.
2012-08-28 14:19:10 +00:00
Warner Losh
f589a026d5 Move to using a flag instead of checking the CPU type each
transaction for the MCI1 rev 2.x write workarounds.
2012-08-28 03:46:31 +00:00
Warner Losh
c35e1c5bbc Style: Move these routines to be before the forward declared functions
as is the normal practice.
2012-08-28 03:27:48 +00:00
Warner Losh
0f30f5d36b Bring in the multi-block patches for mci. These required extensive
restructuring of the driver.  I've tried to preserve the other silicon
workarounds that we've added over the years, but haven't had a chance
to extensively test on other hardware.  On my AT91RM9200 with 30MHz/1
wire/64 block transfers, I've been able to go from ~.66MB/s to
2.25MB/s in the simple tests I performed, almost a 3.5x improvement.
This cuts the boot time almost in half when everything else goes
right (timed from rtc message to login: prompt).

PR:		155214
Submitted by:	Ian Lapore
2012-08-28 01:28:52 +00:00
Warner Losh
bb6e4fd030 Add hint and sysctl support for 4 wire mode.
PR:		155241
Submitted by:	Ian Lapore
2012-08-27 04:30:53 +00:00
Warner Losh
f535f4234a Minor style(9) nit. 2012-08-27 04:08:43 +00:00
Warner Losh
b8e36ef7e0 Don't puprosely overclock the SD bus to 30MHz, make the user
explicltly enable that.  The driver chose to use 60MHz / 2 (30MHz)
most of the time rather than 60MHz / 4 (15MHz) based on the Linux
driver of the time.  This pushes the spec a little in order to not
suffer the penalty of running at 15MHz.  However, when other bus
masters are active in the system, and the user tries 4-wire mode, the
internal bus arbitration would fail with data loss as a result.

# Comments from PR were reworked to reflect my historical perspective

PR:		155214 (partial)
Submitted by:	Ian Lepore
2012-08-27 04:03:49 +00:00
Warner Losh
6e31adaf33 Fetch the chip select in the bridge driver, like all the other spi
bridges do.
2012-08-23 22:38:37 +00:00
Warner Losh
fe49e25285 Use proper resource type when freeing.
Submitted by:	Ian Lapore (indirectly in a larger patch)
2012-08-23 21:31:52 +00:00
Hans Petter Selasky
94d6bc8895 Make some at91_pcm_xxx() functions NULL safe. 2012-08-21 19:55:24 +00:00
Andrew Turner
19a0f7f9cb Set machine correctly on ARM. This allows universe to use the correct world
when building each kernel.

Reviewed by:	imp
2012-08-18 05:48:19 +00:00
Warner Losh
06832193b8 Preliminary Embest ATEB9200 support. 2012-08-16 05:03:59 +00:00
Oleksandr Tymoshenko
cf0df2b399 Unbreak build for the rest of AT91 platforms 2012-08-15 18:33:58 +00:00
Oleksandr Tymoshenko
b208396ea3 Unbreak ATMEL kernel build 2012-08-15 08:34:31 +00:00
Oleksandr Tymoshenko
cf1a573f04 Merging projects/armv6, part 1
Cummulative patch of changes that are not vendor-specific:
	- ARMv6 and ARMv7 architecture support
	- ARM SMP support
	- VFP/Neon support
	- ARM Generic Interrupt Controller driver
	- Simplification of startup code for all platforms
2012-08-15 03:03:03 +00:00
Warner Losh
56c265f2f9 Correct the PLLA setting functions and centralize. 2012-08-11 05:45:19 +00:00
Warner Losh
bcc1a5425a Update comments about setting PLLA and refernce the tables in the
datasheet that express the limits.
2012-08-11 05:12:46 +00:00
Warner Losh
19b89339dc Don't use C++ comments. 2012-08-11 05:03:30 +00:00
Warner Losh
cb8b429ed3 More comments about setting PLLA, or rather that we never do. 2012-08-10 04:48:06 +00:00
Warner Losh
e2af3b9a86 Add charge pump current register. 2012-08-10 04:47:20 +00:00
Warner Losh
679d446fde Allow chip selects other than 0. The SAM9260EK board
has its dataflash on CS1.
2012-07-31 19:14:22 +00:00
Warner Losh
336a1fd275 These files will support the whole at91sam9x5 family when done,
so rename them now before they get copied further afield...
2012-07-30 21:30:43 +00:00
Warner Losh
29b71fbb75 List the members of the AT91SAM9G45 family. 2012-07-30 21:19:19 +00:00
Warner Losh
3ab2f2eb3e Fix a couple of comments about the rm9200, and fix a couple of indentation
issues.  Add note that we need to implement at91sam9260 erratum workaround.
2012-07-30 06:00:31 +00:00
Warner Losh
6ecf8b7749 Add the usb device (gadget) side of things. Also add ehci bindings
while I'm here in anticipation of usb2 support for newer SoCs.

Requested by:	Hans Petter Selasky
2012-07-27 17:31:19 +00:00
Warner Losh
954bfb8bbf Add new at91sam9g45 support and sn9g45 board to the ATMEL kernel.
Adapt SN9G45 board support to cope with multi-board.
2012-07-27 16:38:02 +00:00
Warner Losh
e69d4e1fbd Turns out the ETHERNUT5 isn't anything like the SAM9260-EK. Make this
board init match better: UART1 instead of UART2, No RMMI, no SPI0, SPI1
comments.
2012-07-27 05:33:55 +00:00
Warner Losh
5880116cbf Add (back?) ohci atmel attachment. 2012-07-27 05:28:02 +00:00
Andrew Turner
aaa1966f6b Add support for the DesignA Electronics Snapper9g45 System on Module.
Reviewed by:	imp
2012-07-26 08:05:28 +00:00
Andrew Turner
25d95ee2cc Add support for the Atmel AT91SAM9G45 CPU.
Reviewed by:	imp
2012-07-26 08:01:25 +00:00
Warner Losh
045da1cf0e Some models have 6 USARTS + DBGU. Set a consistent name. 2012-07-26 05:46:56 +00:00
Oleksandr Tymoshenko
86bce74937 Move unmask IRQ function call up to nexus device level.
FDT-enabled targets were broken after r238043 that relies
on device up the hierarchy to properly setup interrupt.
nexus device for ARM platforms did job only partially:
setting handler but not unmasking interrupt. Unmasking
was performed by platform code.

Reviewed by:	andrew@
2012-07-17 03:18:12 +00:00
Warner Losh
17fda71d9f These were never used, remove them. 2012-07-15 06:08:11 +00:00
Warner Losh
eac2306319 Configure the peripheral pins for MCI devices. Eliminate the now-unused
at91_pio_rm9200.h.
2012-07-15 05:41:43 +00:00
Warner Losh
f5dca533c2 Add preliminary support for Atmel SAM9260-EK evaluation kit.
Initially identical to the Ethernut5, but will diverge shortly before
I refactor...
2012-07-14 06:13:23 +00:00
Warner Losh
2f35297b24 uboot should be telling us it is an ETHERNUT5 for this board. Tag it
as such.
2012-07-14 06:00:37 +00:00
Warner Losh
a81c202d81 Create common routines for configuring the serial ports and use them
on all the at91rm9200 boards.
2012-07-14 05:46:52 +00:00
Warner Losh
1221371f4a For our at91rm9200 boards, register which subtype of SoC is on the
board.  We'll use this later to control the differences between these
two variants' pins.
2012-07-13 04:22:08 +00:00
Warner Losh
bc52deb7a9 This file is no longer AT91RM9200 specific, but now is generic to all
Atmel AT91 SoC's we support.  Rename to reflect that.
2012-07-12 19:15:38 +00:00
Warner Losh
1c882be4bc Remember where we found the DBGU and use that for our console. 2012-07-12 19:11:37 +00:00
Warner Losh
097047f652 Fix whitespace divot. 2012-07-12 13:54:24 +00:00
Warner Losh
a68d1f48b9 Complete the transition away from newbus to populate the children to
the linker set of CPU modules.  The newbus method, although clever,
had many flaws: it didn't really support multiple SoC, many of the
comments about order were just wrong, and it did a few things far too
late to be useful.  delay and cpu_reset now work much earlier in the
boot process.
2012-07-12 13:45:58 +00:00
Warner Losh
7f6eecf580 Create the children devices for the SoC in atmelarm bus node, not in
the identify routine of the CPU.
2012-07-12 04:23:11 +00:00
Warner Losh
0fb8b6b070 Export the interrupt status vector via soc_data. Set the interrupt
priorities in the AIC in the atmelarm driver before attaching the
children.  Delete redunant copies of the code.
2012-07-12 02:58:45 +00:00
Warner Losh
691b3c3238 Make the SoC stuff a little more modular, and start to move away from
having the CPU device that's a child of atmelarm that does stuff.

o Create a linker_set for the support fucntions for the SoCs.
o Rename soc_data to soc_info.
o Move the delay and reset function pointers to new soc_data struct
o Create elements for all known SoCs
o Add lookup of the SoC we found, and print a warning if it isn't one
  we know about.
2012-07-11 20:17:14 +00:00
Warner Losh
a83760ee77 at91pit->at91_pit for consistnecy with other drivers. 2012-07-11 17:11:54 +00:00
Warner Losh
f81522c98a at91$DEV->at91_$DEV to match other Atmel drivers. Also, export
at91_rst_cpu_reset.
2012-07-11 17:11:07 +00:00
Warner Losh
83f45363d0 Remove some more unused code. 2012-07-10 23:11:52 +00:00
Warner Losh
6e21b3a1b6 Go ahead and disable the interrupts for the DBGU the boot loader may
have left enabled after we detect the CPU, and remove the multiplely
copied code from the SoC modules.
2012-07-10 19:48:42 +00:00
Warner Losh
d67febb24f Remove a useless bit of indirection. On all Atmel ARM products, irq 1
is the system IRQ, so use the define for it and get on with life.
2012-07-10 15:02:29 +00:00
Warner Losh
58bcb2a9b4 Pure style mischief. at91_$DEV_ rather than at91$DEV_ to match
others.
2012-07-10 06:21:42 +00:00
Warner Losh
37620f94c0 Minor rework to eliminate at91rm9200reg.h dependency and possibly set the
stage for a detach routine (unlikely to be useful, but while I was here..)
2012-07-10 06:18:53 +00:00
Warner Losh
19f4a07329 Collapse all copies of at91_add_child into at91.c. They were
logically identical before today, and actually identical after today's
changes.
2012-07-10 04:17:49 +00:00
Warner Losh
86f2e4dc63 Missed one of the special AT91SAM9xxx_BASE defines. This should be
AT91_BASE.
2012-07-10 02:44:15 +00:00
Warner Losh
89e57ebbb5 The system IRQ is always IRQ 1. Make it so. 2012-07-10 02:39:03 +00:00
Warner Losh
9a5f8be0a7 Eliminate the AT91XXXX_BASE for each SoC. AT91_BASE is the right way
to spell this since we only have one AT91_BASE for all Atmel arm9 SoCs.
2012-07-10 02:14:50 +00:00
Warner Losh
378d88b3dc Remove some unused variables/externs that have been copied too many times... 2012-07-10 01:49:50 +00:00
Warner Losh
0d814a369c There's nothing AT91RM9200 specific about this file at all. 2012-07-10 01:13:00 +00:00
Warner Losh
8304b99a75 Create a generic way to support multiple boards within an
arm platform.  Add all the atmel boards to the ATMEL kernel for
testing purposes.  Until boot loader arg parsing of baord type
is done, this won't actually be able to do the runtime selection.
2012-07-07 05:02:39 +00:00
Warner Losh
ba1227af3f Create a pseudo-lint kernel for all at91 SoCs. This kernel will not
currently boot, but will serve as a good linting.  make universe could
now be altered to skip building all the other at91 kernels...
2012-07-01 06:56:41 +00:00
Warner Losh
bb64064e5d Opt-in rather than opt-out of the SoC. We don't really support
running with multiple SoCs compiled in very well anyway, so this just
wastes space.  As more and more SoCs arrive in the tree, it is better
to edit one master file that builds them all than many board files.
2012-07-01 06:34:17 +00:00
Marius Strobl
478f9295ef Exclude at91sam9x25 support, which just wastes space for Ethernut 5. 2012-06-30 14:48:52 +00:00
Warner Losh
c2353ed4c0 Tweak comment. 2012-06-29 06:06:19 +00:00
Warner Losh
5cb96b1dbd Add PIOD, make at91sam9x25 a standard SoC, tweak some comments. 2012-06-29 06:05:44 +00:00
Warner Losh
65b1f169a4 Ooops, replaced the at91sam9g20 interrupt list with the at91sam9x25 ones. 2012-06-29 04:49:50 +00:00
Warner Losh
007c69d506 Initital support for AT91SAM9X25 SoC and the SAM9X25-EK evaluation
board.  Much work remains.
2012-06-29 04:18:52 +00:00
Warner Losh
5af29dd303 Fix a stray debug that I committed accidentally years ago... 2012-06-22 06:44:22 +00:00
Warner Losh
2403db9a0f Move these #defines to at91reg.h (where I should have put them in the
first place).
2012-06-22 05:54:34 +00:00
Marius Strobl
e1020aef06 Revert the part of r236495 that introduced checking of SPI_SR_TXEMPTY
for TX transfer completion as for reasons unknown this occasionally
causes SPI_SR_RXBUFF and SPI_SR_ENDRX to not rise.
In any case, once the RX part of the transfer is done it's obvious
that the preceding TX part had finished and checking of SPI_SR_TXEMPTY
was introduced to rule out a possible cause for the data corruption
mentioned in r236495 but which didn't turn out to be the problem
anyway.

MFC after:	3 days
2012-06-18 20:14:42 +00:00
Marius Strobl
da20f734c0 Try to bring this file closer to style(9). 2012-06-18 19:47:25 +00:00
Marius Strobl
352a43b07f Unbreak after r236658 by comparing the right things. 2012-06-18 19:22:10 +00:00
Warner Losh
6212b9963b Throw this debug behind bootverbose. The information isn't all that
exciting once the initial board bring up is over.
2012-06-16 04:34:46 +00:00
Warner Losh
b44f8e5e1e Make it possible to link together a sam and an rm kernel. The results
aren't very pretty yet, but this takes DELAY and cpu_reset and makes
them pointers.

# I worry that these are set too late in the boot, especially cpu_reset.
2012-06-15 08:37:50 +00:00
Warner Losh
e6e7584dcd Collapse the files.at91 and files.at91sam9 back into files.at91.
Create a new option for at91rm9200 support.  Set this option in
std.at91.  Create a new option for the at91sam9 standard devices.  Set
this option in std.at91sam9.  Retire files.at91sam9.  Add options for
at91sam9x25 SoC and SAM9X25EK board, but don't connect it just yet as
the supporting files aren't quite ready.

Note: device at91rm9200 and device at91sam9 are presently mutually
exclusive.
2012-06-15 07:50:26 +00:00
Warner Losh
1591de53b1 Take half a step closer towards having a unified atmel kernel by
rearranging where we initialize the time counter and putting the
common stubs into a central place.
2012-06-15 06:38:55 +00:00
Warner Losh
3590dad094 More Linux boot support. Create arm_dump_avail_init() to initialize
this array either from Linux boot data, when enabled, or in the
typical way that most ports do it.  arm_pyhs_avail_init is coming
soon since it must be a separate function.
2012-06-14 04:18:56 +00:00
Warner Losh
d39655d7a4 Modify all the arm platform files to call parse_boot_param passing in
the boot parameters from initarm first thing.  parse_boot_param parses
the boot arguments and converts them to the /boot/loader metadata the
rest of the kernel uses.  parse_boot_param is a weak alias to
fake_preload_metadata, which all the platforms use now, but may become
more extensive in the future.

Since it is a weak symbol, specific boards may define their own
parse_boot_param to interface to custom boot loaders.

Reviewed by:	cognet@, Ian Lapore
2012-06-14 04:00:30 +00:00
Warner Losh
6a7be52dbe Strip trailing whitespace before other changes. 2012-06-13 04:52:19 +00:00
Andrew Turner
16072bc718 Remove an unneeded increment from initarm. The variable is uninitialised,
is not used in this part of the function and correctly initialised later
when it is used.
2012-06-10 10:40:22 +00:00
Andrew Turner
4ea15b8776 Pull out the common code to initialise proc0 & thread0 from initarm to a
common function.

Reviewed by:	imp
2012-06-10 01:13:04 +00:00
Warner Losh
c6aea9681a Remove stray break; that resulted from a last-minute, untested change. 2012-06-06 14:31:14 +00:00
Warner Losh
73a4b7a9d8 Enhance the Atmel SoC chip identification routines to account for more
SoC variants.  Fold the AT91SAM9XE chips into the AT91SAM9260
handling, where appropriate.  The following SoCs/SoC families are recognized:
	at91cap9, at91rm9200, at91sam9260, at91sam9261, at91sam9263,
	at91sam9g10, at91sam9g20, at91sam9g45, at91sam9n12, at91sam9rl,
	at91sam9x5
and the following variations are also recognized:
	at91rm9200_bga, at91rm9200_pqfp, at91sam9xe, at91sam9g45, at91sam9m10,
	at91sam9g46, at91sam9m11, at91sam9g15, at91sam9g25, at91sam9g35,
	at91sam9x25, at91sam9x35
This is only the identification routine: no additional Atmel devices
are supported at this time.

# With these changes, I'm able to boot to the point of identification
# on a few different Atmel SoCs that we don't yet support using the
# KB920X config file -- someday tht will be an ATMEL config file...
2012-06-06 06:19:52 +00:00
Warner Losh
a687c5ecc9 Remove dead code. 2012-06-05 14:19:59 +00:00
Warner Losh
537cdfaff1 Eliminate the now-unused AT91C_MASTER_CLOCK option and change the one
place in the source it was used to the more correct AT91C_MAIN_CLOCK.
Sort AT91C_MAIN_CLOCK into a better location in the options.arm file.
2012-06-04 04:24:59 +00:00
Warner Losh
4623180919 Minor rearrangement of the locore <-> initarm interface. Pass in a
structure with the first 4 registers to allow a wider range of boot
loaders to work.  Future commits will make use of this to centralize
support for the different loaders.
2012-06-03 18:34:32 +00:00
Warner Losh
5fd9ec69d6 Remove stray repeated line... 2012-06-03 05:36:25 +00:00
Marius Strobl
31a2c906d7 - Prepend the device description with "AT91" to reflect its nature. [1]
- Move DMA tag and map creature to at91_spi_activate() where the other
  resource allocation also lives. [1]
- Flesh out at91_spi_deactivate(). [1]
- Work around the "Software Reset must be Written Twice" erratum.
- For now, run the bus at the slowest speed possible in order to work
  around data corruption on transit even seen with 9 MHz on ETHERNUT5
  (15 MHz maximum) and AT45DB321D (20 MHz maximum). This also serves as
  a poor man's work-around for the "NPCSx rises if no data data is to be
  transmitted" erratum of RM9200. Being able to use the appropriate bus
  speed would require:
  1) Adding a proper work-around for the RM9200 bug consisting of taking
     the chip select control away from the SPI peripheral and managing it
     directly as a GPIO line.
  2) Taking the maximum frequencies supported by the actual board and the
     slave devices into account and basing the whole thing on the master
     clock instead of hardcoding a divisor as previously done.
  3) Fixing the above mentioned data corruption.
- KASSERT that TX/RX command and data sizes match on transfers.
- Introduce a mutex ensuring that only one child device is running a SPI
  transfer at a time. [1]
- Add preliminary, #ifdef'ed out support for setting the chip select. [1]
- Use the RX instead of the TX commando size when setting up the RX side
  of a transfer.
- For controllers having SPI_SR_TXEMPTY, i.e. !RM9200, also wait for the
  completion of the TX part of transfers before stopping the whole thing
  again.
- Use DEVMETHOD_END. [1]
- Use NULL instead of 0 for pointers. [1, partially]

Additional testing by:  Ian Lepore

Submitted by:   Ian Lepore [1]
MFC after:      1 week
2012-06-03 00:54:10 +00:00
Warner Losh
b33fdab5e0 Revert debug and other immature code accidentally committed in r236372. 2012-06-01 03:00:36 +00:00
Warner Losh
b8b0747b3c Initialize the clocks before we call cninit() so that the serial
console so initialized will work upon return from cninit.  While this
is the very next line, other platforms setup all this stuff before
calling cninit.  Also, initialize the SDRAM base register in the inner
block in at91_ramsize().
2012-06-01 02:55:42 +00:00
Warner Losh
c414207ab0 Compute the master clock frequency, so we no longer need to have it
compiled into the kernel.  This allows us to boot the same kernel on
machines with different master clock frequencies, so long as we can
determine the main clock frequency accurately.  Cleanup the pmc clock
init function so it can be called in early boot so we can use the
serial port just after we call cninit.

# We have two calls to at91_pmc_clock_init for reasons unknown, that will
# be fixed later -- it is harmless for now.
2012-05-29 03:23:18 +00:00
Warner Losh
32f648079f Be a little less magical, not that these values are likely to change... 2012-05-21 07:47:57 +00:00
Warner Losh
e5db213663 Another minor re-arrangement of the code: calcualte the master clock
frequency in the at91_pmc_clock_init rather than passing it in.  Allow
for frequencies >= 21MHz by rounding to the nearest 500Hz (Idea from
Ian Lapore whose company uses a similar arrangement in their product).
at91_pmc_clock_init() is now nearly independent of the rest of the pmc
driver (which means we may be able to call it much earlier in boot
soon to eliminate the master clock config file requirement for printf
to work during early boot and also eliminate some interdependencies
with the device ordering which requires pmc to be the first device
added).
2012-05-21 04:24:58 +00:00
Warner Losh
c41941dfeb Minor cleanup before some more major changes:
o main_clock_hz isn't used, eliminate it
o move main clock calculation code and table so we have only one ifdef.
2012-05-20 20:50:40 +00:00
Marius Strobl
0a7ac239c9 Add glue/support for the SAM9XE512-based Ethernut 5 boards. Currently,
all integrated and on-board peripherals except the DataFlash (at91_spi(4)
and at45d(4) still need to be unb0rken) and NAND Flash (missing NAND
framework) are working.
AFAICT, this makes FreeBSD the first operating system besides Nut/OS
supporting Ethernut 5 out of tree.
2012-05-12 18:11:26 +00:00
Warner Losh
9434786e88 Hack to unbreak boot2 for at91rm9200 boot loader. When the at91sam
code came in, it moved things around which wound up breaking the
build.  We have to do this bit of a hack to avoid duplication of a lot
of #defines.
2012-05-11 14:40:25 +00:00
Warner Losh
f5fbd56ca7 Fix comment about what board this is really for left over from early
cut and paste.
2012-05-02 18:41:58 +00:00
Warner Losh
b847531ac8 The PIT is really 16 bytes long (0x10) not 10 bytes long. Doesn't
matter much, since these defines are unused...

Obtained from:	AT91SAM9G20 datasheet
2012-05-02 09:19:42 +00:00
Marius Strobl
8a7eceb74a - Add missing locking in at91_usart_getc().
- Align the RX buffers on the cache line size, otherwise the requirement
  of partial cache line flushes on every are pretty much guaranteed. [1]
- Make the code setting the RX timeout match its comment (apparently,
  start and stop bits were missed in the previous calculation). [1]
- Cover the busdma operations in at91_usart_bus_{ipend,transmit}() with
  the hardware mutex, too, so these don't race against each other.
- In at91_usart_bus_ipend(), reduce duplication in the code dealing with
  TX interrupts.
- In at91_usart_bus_ipend(), turn the code dealing with RX interrupts
  into an else-if cascade in order reduce its complexity and to improve
  its run-time behavior.
- In at91_usart_bus_ipend(), add missing BUS_DMASYNC_PREREAD calls on
  the RX buffer map before handing things over to the hardware again. [1]
- In at91_usart_bus_getsig(), used a variable of sufficient width for
  storing the contents of USART_CSR.
- Use KOBJMETHOD_END.
- Remove an unused header.

Submitted by:	Ian Lepore [1]
Reviewed by:	Ian Lepore
MFC after:	1 week
2012-05-01 20:42:03 +00:00
Marius Strobl
f7f6865e6d - Add support for MCI1 revision 2xx controllers and a work-around for their
"Data Write Operation and number of bytes" erratum.
- Use DEVMETHOD_END.
- Use NULL instead of 0 for pointers.
2012-04-22 00:43:32 +00:00
Marius Strobl
83a8745245 Generate an obviously missing STOP when having finished transmitting data.
This fixes communication with PCF8563.
2012-04-14 17:27:34 +00:00
Marius Strobl
de98dfa146 Add support for the Atmel SAM9XE familiy of microcontrollers, which
consist of a ARM926EJ-S processor core with up to 512 Kbytes of on-chip
flash. Tested with SAM9XE512.

This file was missed in r234291.
2012-04-14 17:17:55 +00:00
Marius Strobl
0f0819525b Add support for the Atmel SAM9XE familiy of microcontrollers, which
consist of a ARM926EJ-S processor core with up to 512 Kbytes of on-chip
flash. Tested with SAM9XE512.
2012-04-14 17:09:38 +00:00
Marius Strobl
bef0709e64 - Try to bring these files closer to style(9).
- Use DEVMETHOD_END.
- Use NULL instead of 0 for pointers.
2012-04-14 11:29:32 +00:00
Ulrich Spörlein
004a39cd57 Remove spurious 8bit chars, turning files into plain ASCII. 2012-01-15 13:23:33 +00:00
Kevin Lo
a32376dd76 Check the return value of BUS_SETUP_INTR()
Reviewed by:	imp
2011-10-27 10:21:40 +00:00
Kevin Lo
d11bbab85d Remove pointless semicolons after label 2011-09-30 04:55:23 +00:00
Robert Watson
e5a0927394 Follow up to r225203 refining break-to-debugger run-time configuration
improvements:

(1) Implement new model in previously missed at91 UART driver
(2) Move BREAK_TO_DEBUGGER and ALT_BREAK_TO_DEBUGGER from opt_comconsole.h
    to opt_kdb.h (spotted by np)
(3) Garbage collect now-unused opt_comconsole.h

MFC after:	3 weeks
Approved by:	re (bz)
2011-08-27 14:24:27 +00:00
Kevin Lo
281f0ca8e7 Remove duplicate header includes 2011-06-26 10:07:48 +00:00
Olivier Houchard
cef9635e50 Typo fix 2011-04-25 18:15:45 +00:00
Olivier Houchard
3e9a516ed4 Get myself a brain, move the call to init_param1() before the first use in
at91_machdep.c, and do it for the files I forgot the first time

Reported by:	andrew
Submitted by:	pluknet
2011-02-21 13:11:05 +00:00
Olivier Houchard
04f86cb130 Oops, wasn't supposed to commit this. 2011-02-13 20:04:29 +00:00
Olivier Houchard
e9e1639ac0 Call init_param1() much earlier, so that msgbufsize is non-zero when we want
to map and use the msgbuf.
2011-02-13 20:02:46 +00:00
Bernd Walter
57abf9f47b unbreak mutlicast hash creation for the second time.
at91_emac hardware is *not* using ether_crc32_be algorithm!
2011-02-07 01:13:57 +00:00
Sergey Kandaurov
4053b05b91 Make MSGBUF_SIZE kernel option a loader tunable kern.msgbufsize.
Submitted by:	perryh pluto.rain.com (previous version)
Reviewed by:	jhb
Approved by:	kib (mentor)
Tested by:	universe
2011-01-21 10:26:26 +00:00
John Baldwin
e9dc47ee81 - Use macbstart_locked() directly instead of deferring it to a task.
- Expand locking scope in interrupt handler.
- Flesh out the detach routine.

Reviewed by:	cognet
2011-01-06 19:32:00 +00:00
Warner Losh
fb1f3084ea Remove support for SKYEYE simulator 2011-01-05 23:45:07 +00:00
Kevin Lo
7df9d5acad Fix double ;; 2010-12-06 10:24:06 +00:00
Marius Strobl
b56f1ea9d4 Remove a device_printf() accidentally left in r213894.
Submitted by:	jhb
2010-10-15 15:16:36 +00:00
Marius Strobl
d6c65d276e Converted the remainder of the NIC drivers to use the mii_attach()
introduced in r213878 instead of mii_phy_probe(). Unlike r213893 these
are only straight forward conversions though.

Reviewed by:	yongari
2010-10-15 15:00:30 +00:00
Olivier Houchard
d1a346128f Add support for the AT91SAM9260
Submitted by:	Greg Ansley
2010-10-06 22:40:27 +00:00
Olivier Houchard
4ad6106939 if_ate.c:
* Support for sam9 "EMAC" controller.
    * Support for rmii interface to phy.

at91.c & at91sam9.c:

    * Eliminate separate at91sam9.c file.
    * Add new devices to at91sam9_devs table.

at91_machdep.c & at at91sam9_machdep.c:

    * Automatic chip type determination.
    * Remove compile time chip dependencies.
    * Eliminate separate at91sam9_machdep.c file.

at91_pmc.c:

    * Corrected support for all of the sam926? and sam9g20 chips.
    * Remove compile time chip dependencies.

My apologies to Greg for taking so long to take care of it.
2010-10-06 22:25:21 +00:00
Bernd Walter
4a2b4bc031 fix outdated comment 2010-09-28 21:13:54 +00:00
Bernd Walter
974dd68e5c The TWI controller automatically stops if we don't fill up with new data in
time.
2010-09-27 15:58:19 +00:00
Bernd Walter
cd93636f3e fix off by one error for twi reads with len != 1.
STOP must be requested before the last byte is received.
2010-09-27 15:55:30 +00:00
Olivier Houchard
50a9f1c71c Import preliminary support for Atmel AT91SAM9G20 cpu, and the Hot-e HL201.
This fine work was done by Yohanes Nugroho <yohanes a gmail dot com>
Many thanks to John Nicholls and Thinlinx for providing sample hardware.
2010-07-14 00:48:53 +00:00
Maxim Sobolev
e50d35e6c6 Add new tunable 'net.link.ifqmaxlen' to set default send interface
queue length. The default value for this parameter is 50, which is
quite low for many of today's uses and the only way to modify this
parameter right now is to edit if_var.h file. Also add read-only
sysctl with the same name, so that it's possible to retrieve the
current value.

MFC after:	1 month
2010-05-03 07:32:50 +00:00
Bernd Walter
80720032c0 simplify hash calculation 2010-02-28 18:06:54 +00:00
Bernd Walter
f7255c488c remove debug leftover 2010-02-28 16:14:34 +00:00
Bernd Walter
31e94ae09f Fix multicast hashes.
Atmel uses a simple xor hash instead of the typical crc based one.
2010-02-28 16:11:13 +00:00
John Baldwin
3064f0530b - Initialize callout before it is used in atestop() during attach.
- Reorder detach so that ether_ifdetach() is called first.  This removes
  the race that ATE_FLAG_DETACHING closed, so that flag can be removed.
- Trim a duplicate clearing of IFF_DRV_RUNNING.

Reviewed by:	imp
2009-11-19 22:04:02 +00:00
John Baldwin
e21e2eea58 These drivers only set if_timer but never set if_watchdog. Just remove
the assignments to if_timer.
2009-11-19 18:11:23 +00:00
Alan Cox
c346328f95 Eliminate an unnecessary vm include file. 2009-11-04 04:41:03 +00:00
Stanislav Sedov
2dc8b759bd - Proprely intialize UART parameters at probe stage, so uart(4)
will initialize the FIFO memory correctly on attach.  Before
  that this values was intialized in only in at91_usart_bus_attach
  which is called after the uart(4) memory allocation happens.

Approved by:	re (kib)
MFC after:	1 week
2009-08-15 15:15:20 +00:00
Rafal Jaworowski
f981547c99 Map DPCPU pages into ARM kernel VA space.
DPCPU area was not properly mapped into kernel VA space, which caused page
fault on the first DPCPU access. This patch fixes the problem by mapping DPCPU
area into kernel VA space.

Submitted by:	Michal Hajduk, Piotr Ziecik
Reviewed by:	cognet, stas
Approved by:	re (kib)
Obtained from:	Semihalf
2009-07-01 20:07:44 +00:00
Robert Watson
eb956cd041 Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/
IF_ADDR_UNLOCK() across network device drivers when accessing the
per-interface multicast address list, if_multiaddrs.  This will
allow us to change the locking strategy without affecting our driver
programming interface or binary interface.

For two wireless drivers, remove unnecessary locking, since they
don't actually access the multicast address list.

Approved by:	re (kib)
MFC after:	6 weeks
2009-06-26 11:45:06 +00:00
Jeff Roberson
50c202c592 Implement a facility for dynamic per-cpu variables.
- Modules and kernel code alike may use DPCPU_DEFINE(),
   DPCPU_GET(), DPCPU_SET(), etc. akin to the statically defined
   PCPU_*.  Requires only one extra instruction more than PCPU_* and is
   virtually the same as __thread for builtin and much faster for shared
   objects.  DPCPU variables can be initialized when defined.
 - Modules are supported by relocating the module's per-cpu linker set
   over space reserved in the kernel.  Modules may fail to load if there
   is insufficient space available.
 - Track space available for modules with a one-off extent allocator.
   Free may block for memory to allocate space for an extent.

Reviewed by:    jhb, rwatson, kan, sam, grehan, marius, marcel, stas
2009-06-23 22:42:39 +00:00
Andriy Gapon
08d43f8e62 strict kobj signatures: number of fixes for arm architecture
no functional changes should result

Reviewed by:	imp, current@
Approved by:	jhb (mentor)
2009-06-11 17:05:13 +00:00
Warner Losh
61deeba0ff Eliminate devclass_find_free_unit call here, since -1 gives the same
net behavior.
2009-06-10 17:39:19 +00:00
Marcel Moolenaar
272489fe59 Pass the previously returned IRQ back to arm_get_next_irq() so that
the implementation can guarantee forward progress in the event of
a stuck interrupt or interrupt storm. This is especially critical
for fast interrupt handlers, as they can cause a hard hang in that
case. When first called, arm_get_next_irq() is passed -1.

Obtained from:	Juniper Networks, Inc.
2009-06-09 18:18:41 +00:00
Andrew Thompson
11c63ede84 Delete the old USB stack. The new stack has settled in and has all the
drivers/functionality and then some.
2009-05-27 16:16:56 +00:00
Warner Losh
940672949e Fix name for driver to assign to the SPI device. 2009-05-15 04:49:20 +00:00
Stanislav Sedov
18f799c8fd - Set MAC address in ateinit, so it can be changed later. 2009-05-13 21:01:10 +00:00
Stanislav Sedov
24756cad5d - Style(9) and consistency nitpicking.
Reviewed by:	imp
2009-05-13 20:29:53 +00:00
Oleksandr Tymoshenko
ecd6163338 - Make SPI bus bridge be non-arch dependent by using more generic
name

Reviewed by:	imp
2009-05-13 18:42:49 +00:00
Stanislav Sedov
cd2d868fbf - Resurrect the debug printf message I accidentally dropped
in the previous commit.
- Use device_printf instead of printf.
- Put all printfs in the interrupt handler under bootverbose.
2009-05-12 21:28:41 +00:00
Stanislav Sedov
8787221578 - Eliminate extra register reads by using a variable to store
registers contents.
- Use memory barriers to preserve the order of buffer space operations.
  This might be needed if we'll ever use this driver on architectures
  where ordering is not guaranteed.
2009-05-12 21:14:36 +00:00
Stanislav Sedov
ff10bcec5d - Implement detach path.
- Release memory and DMA resources on stop.
- Unload the associated DMA maps after transmit is complete.
2009-05-12 16:07:08 +00:00
Stanislav Sedov
bdb08649eb - Fix build with INVARIANTS enabled. 2009-05-10 11:05:22 +00:00
Stanislav Sedov
5c04df6cb6 - Fix multicast operation that I broke in previous commit.
- Do not enable multicast hash lookup if no multicast addresses
  were configured or if promisc mode is enabled.
2009-05-10 10:32:29 +00:00
Stanislav Sedov
36ffa1b9de - Fix promisc/multicast/broadcast parameters setting by introducing the
new ate_rxfilter function to set requested parameters. Use this function
  on parameters change rather than  reinitializing the chip.
2009-05-10 08:54:10 +00:00
Stanislav Sedov
4e393bc4d7 - Whitespace nitpicking. 2009-04-23 00:00:57 +00:00
Stanislav Sedov
f3bdbeccf7 - Add the driver for AT91RM9200 CompactFlash controller. The driver
operates in the common memory mode and use polling mode to control
  the status of operations as I don't have any board with interrupt
  line routed yet. I'll add the GPIO interrupt driven mode as soon
  as I get one.
2009-04-22 23:54:41 +00:00
Andrew Thompson
65fd114d53 MFp4 //depot/projects/usb@159992
at91_udp.c does not exist anymore, it is now replaced by at91dci in
src/sys/dev/usb/controller. Also remove the ohci_atmelarm.c because it is also
included in src/sys/conf/files

Submitted by:	Sylvestre Gallon
2009-04-05 18:21:40 +00:00
Warner Losh
d03c67b198 Move to new usb stack that puts the front-end bus attachments with the
usb stack rather than with the rest of the processor support code.
Not sure that's a good idea, as we were moving away from it, but this
fixes the build in the mean time so we can have that discussion.
2009-02-27 23:12:28 +00:00
Warner Losh
3d74c77136 Move to having a caps flag. Newer versions of the AT91 family don't
need the bouncing, so save a few copies in that case.  Also convert
4-bit code selection to using it.
2009-01-23 00:51:25 +00:00
Warner Losh
d78f78230d Don't over-commit the DMA. Use the passed in size of the transfer
rather than a fixed 512...  This fixes the mount root problem on at91.
Prior to the SD card reorg, all data transfers were 512 bytes, so we
didn't notice.
2009-01-22 22:29:21 +00:00
Warner Losh
5999bbbf41 Migrate towards using at91_master_clock. Initialize the clocks for
the serial port class when we set the devclass since it is now
no-longer a compile time constant.  Eliminate the pci include, as it
isn't relevant or necessary.
2009-01-22 21:56:41 +00:00
Warner Losh
3180286fb2 Use at91_master_clock instead of AT91C_MASTER_CLOCK. 2009-01-22 21:55:37 +00:00
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