Commit Graph

468 Commits

Author SHA1 Message Date
ian
a925f8a783 Fix the handling of the "PDC write transfer length" erratum for at91. The
problem affects revision 1xx hardware as well as later versions.  Also, the
recommended workaround is to set the PDC count register for a 12-byte
transfer when the actual size is less than that, but there is no need to
extend or zero-out the data buffer, because the blklen register contains
the real transfer size and only that many bytes will be transferred.

Also add a sysctl to turn debugging printfs on or off on the fly.
2016-01-14 19:33:13 +00:00
andrew
d80c75fe62 Remove the arm KERNPHYSADDR option as it is no longer used. The make
option is still in existance as it is used to build the trampoline code.
2015-12-22 09:08:21 +00:00
ian
3ddff54265 Move the DRIVER_MODULE() statements that declare mmc(4) to be a child of
the various bridge drivers out of dev/mmc.c and into the bridge drivers.

Requested by:	   jhb (almost two years ago; better late than never)
2015-12-14 01:09:25 +00:00
andrew
d819c2e831 Move more bus_space_* files to be built by files.arm. This leaves the
definition in a file.* file under sys/arm/arm in the few cases we need it
for non-fdt platforms.

Sponsored by:	ABT Systems Ltd
2015-11-21 15:30:08 +00:00
imp
0948500dbf Correct !FDT case with proper name. 2015-11-07 22:58:56 +00:00
imp
d54893afcb Implement the phy-mode property for ate and macb. If it is set to
"rmii", use rmii mode for the MAC, otherwise use MII mode. The code is
somewhat duplicated between these drivers for this.

Also, add AT91RM9200 compatibility strings to the ate driver. In the
future, there's a good chance that ate will lose the MACB support and
only attach to the AT91RM9200 EMAC device since the macb works now
that RMII support has been added to it.
2015-11-07 22:52:06 +00:00
imp
8861584a6b Add support for RMII in macb, cribbed slightly from the ate
driver. This is taken from the MAC at boot, but can be overridden with
'options AT91_MACB_USE_RMII'.

Switch to macb for HL201 and SAM9G20EK boards. It now works both
places. Also start to sneak up on FDT for the SAM9G20EK board, but
leave disabled due to issues with MMC that haven't been resolved.
Add early debug support for the SAM9G20EK since that is required
for FDT to work presently on these SoC.
2015-11-07 20:02:07 +00:00
cognet
c369925ae6 Make if_macb work with FDT. 2015-11-05 22:03:42 +00:00
cognet
2764ea63e8 Make at91_pmc probe any at91 pmc device we support, not just at91rm9200.
MFC after:	1 week
2015-11-05 22:03:20 +00:00
kib
9033c894a1 Make kstack_pages a tunable on arm, x86, and powepc. On i386, the
initial thread stack is not adjusted by the tunable, the stack is
allocated too early to get access to the kernel environment. See
TD0_KSTACK_PAGES for the thread0 stack sizing on i386.

The tunable was tested on x86 only.  From the visual inspection, it
seems that it might work on arm and powerpc.  The arm
USPACE_SVC_STACK_TOP and powerpc USPACE macros seems to be already
incorrect for the threads with non-default kstack size.  I only
changed the macros to use variable instead of constant, since I cannot
test.

On arm64, mips and sparc64, some static data structures are sized by
KSTACK_PAGES, so the tunable is disabled.

Sponsored by:	The FreeBSD Foundation
MFC after:	2 week
2015-08-10 17:18:21 +00:00
zbb
fbdf5266d5 Fix KSTACK_PAGES issue when the default value was changed in KERNCONF
If KSTACK_PAGES was changed to anything alse than the default,
the value from param.h was taken instead in some places and
the value from KENRCONF in some others. This resulted in
inconsistency which caused corruption in SMP envorinment.

Ensure all places where KSTACK_PAGES are used the opt_kstack_pages.h
is included.

The file opt_kstack_pages.h could not be included in param.h
because was breaking the toolchain compilation.

Reviewed by:   kib
Obtained from: Semihalf
Sponsored by:  The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D3094
2015-07-16 10:46:52 +00:00
imp
d184c1c64f Need to handle the !FDT case still too... I thought in r270025 we
wouldn't need it, but it appears that we still do for the moment...
2015-05-22 05:02:53 +00:00
andrew
80a7f06d8f Include machine/intr.h for arm_post_filter. 2015-04-04 23:00:37 +00:00
andrew
9b9d02caf2 Build the cpufunc_asm_* files based on the cpu type, not which config file
we happen to be building.
2015-03-29 22:43:39 +00:00
andrew
61b861116b Remove the bootconfig parsing. We never used it and always passed either an
empty string or NULL to the setup functions that called into it.
2015-03-29 20:37:28 +00:00
ian
550c116c70 Move the uart_class definitions and fdt compat data into the individual
uart implementations, and export them using the new linker-set mechanism.

Differential Revision:	https://reviews.freebsd.org/D1993
Submitted by:	Michal Meloun
2015-03-07 15:24:15 +00:00
ian
7ca5bd2f19 Use explicit initializer style, fill in missing functions. 2015-01-21 03:28:07 +00:00
ian
b4fa4f6baa For some reason, all the arm bus_space functions that work with uint16
values have armv4 in the name.  There's nothing armv4-special about them,
so just use the same sort of names as all the other functions.
2015-01-21 02:56:13 +00:00
ian
c25b839fb8 Revise the arm bus_space implementation to avoid dereferencing the tag on
every operation to retrieve the bs_cookie value almost nothing actually uses.

The bus_space struct contains a private data pointer (poorly named bs_cookie,
now renamed to bs_privdata) which is used only by a few old armv4 xscale
implementations.  The bus_space functions were all defined to take this
value as the first parameter instead of the bus_space_tag_t, requiring all
the inline macro and function expansions to dereference the tag to pass it
to another function, which never uses it.  Now all the functions take the tag
as the first parameter and retrieve the privdata if they need it.

Also fix a couple bus_space_unmap() implementations that were calling
kva_free() instead of pmap_unmapdev().

Discussed with:	   cognet
2015-01-21 01:06:08 +00:00
ian
147cc19bb7 Eliminate a redundant declaration. 2014-12-21 21:23:53 +00:00
ian
3aefca1073 Remove the ARM_DEVICE_MULTIPASS option and make its effect be the default.
Multipass device attachment was tested on many arm platforms by users and
only success was reported on the arm@ mailing list.  This is just the
long-delayed followup of making it the default.

Multipass attachment is necessary when using vendor-supplied FDT data,
because our devices may need to be attached in a different order than they
are described in the FDT data.
2014-10-26 18:30:35 +00:00
kevlo
e0eb5b421d Fix the definitioin of AT91SAM9G45_IRQ_PIOE and rename it to
AT91SAM9G45_IRQ_PIODE.  According to the data sheet, both PIOD and PIOE
use the same IRQ.

While here remove duplicate definitions.
2014-09-27 14:39:00 +00:00
kevlo
f41bd0c035 Remove a bogus AIC.
Reviewed by:	imp
2014-09-27 02:15:45 +00:00
kevlo
5967c3f837 Fix the size of AT91SAM9260_PIT_SIZE. 2014-09-26 09:08:09 +00:00
kevlo
22bd80f0ab Fix typos. 2014-09-26 09:07:02 +00:00
glebius
38c3245a7b Mechanically convert to if_inc_counter(). 2014-09-19 09:20:16 +00:00
ian
5f75e2409e Convert the at91_pinctrl driver to use the new fdt_pinctrl interface. 2014-09-13 19:59:16 +00:00
andrew
249f5cbad9 Unify interrupts bit definition and usage. While here remove PSR_C_bit.
Submitted by:	Svatopluk Kraus <onwahe at gmail.com>,
		Michal Meloun <meloun at miracle.cz>
Differential Revision: https://reviews.freebsd.org/D754
2014-09-10 15:25:15 +00:00
imp
588ebd48d9 Wrap some long lines. 2014-09-04 16:40:54 +00:00
ian
b149a9e7ae Rename OF_xref_phandle() to OF_node_from_xref() and add a new function
that provides the inverse translation, OF_xref_from_node().

Discussed with:	nwhitehorn
2014-09-01 18:51:01 +00:00
imp
f7f2052abf Make note about reset vs RTOE actions... 2014-08-18 21:04:35 +00:00
bz
a62a72ce2b Remove keyboard entropy [1] from r270105.
Reported by:		ian [1]
(Pointy hat)^2 to:	imp
2014-08-17 18:27:02 +00:00
imp
00d9dc02d3 Add missing license to at91_common.c. It was committed w/o a license.
Pointy hat to: imp@
2014-08-17 16:53:19 +00:00
imp
4cff0ce854 Define at91_master_clock in only one file to eliminate warnings about
it multiply defined commons.
2014-08-17 16:53:14 +00:00
ian
4d87ddb2b8 Rename the old initarm_* functions to the new platform_* names. Also
move the registration of the static device map table into the function
intended to do devmap init stuff.
2014-08-17 02:53:36 +00:00
imp
f4c59deacc Implement the FDT static pinctl/pinmux spec for Atmel. This will
configure the mux and config registers for PIO devices based on what
we find in the FDT. I developed it per the spec that had been
committed to Linux in the January 2014 time frame and haven't
updated. In short, bundles of pins are activated in specific ways for
specific configurations, and we implement all of that.

What's not included is a MI device infrastructure, any dynamic
run-time changing of these pins, etc. Also not included are hooks into
all the drivers to enable the latter (static at boot no driver changes
are needed). These larger questions will need to be answered once we
have more drivers like this for more platforms, or somebody has a heck
of a lot of time to research a bunch of platforms, the Linux solution
(which is good, but has its warts), etc.
2014-08-15 16:08:52 +00:00
imp
6a0dd771d9 Print the symbolic bit names for the status when we get a timeout. 2014-08-14 23:17:33 +00:00
imp
dc346017bf Add AIC to at91sam9260 support, now that it is needed for multipass to
work. This gets my AT91SAM9260-based boards almost booting with
current in multi pass. The MCI driver is broken, but it is equally
broken before multi-pass.
2014-08-14 04:21:31 +00:00
imp
84d638ac06 Add support for multipass to Atmel, for both FDT and !FDT cases. 2014-08-14 04:21:25 +00:00
imp
7603d1d8c5 Start to add FDT support. 2014-08-14 04:21:20 +00:00
imp
a2466e5139 Add support for FDT and !FDT configs on Atmel, though FDT isn't
working yet.
Bump rev on arm Makefile since files.at91 uses new '!' operator.
2014-08-14 04:21:14 +00:00
jhb
de01564f85 Don't bother clearing maps for static DMA allocations to NULL. Instead,
leave them as purely opaque values that are only set by bus_dmamem_alloc().
2014-06-17 18:10:06 +00:00
jhb
e8769d6be2 Fix various NIC drivers to properly cleanup static DMA resources.
In particular, don't check the value of the bus_dma map against NULL
to determine if either bus_dmamem_alloc() or bus_dmamap_load() succeeded.
Instead, assume that bus_dmamap_load() succeeeded (and thus that
bus_dmamap_unload() should be called) if the bus address for a resource
is non-zero, and assume that bus_dmamem_alloc() succeeded (and thus
that bus_dmamem_free() should be called) if the virtual address for a
resource is not NULL.

In many cases these bugs could result in leaks when a driver was detached.

Reviewed by:	yongari
MFC after:	2 weeks
2014-06-11 14:53:58 +00:00
kevlo
701aae6977 Remove extra semicolons. 2014-06-06 16:37:42 +00:00
ian
56f425f93e When mapping device memory, use PTE_DEVICE rather than PTE_NOCACHE.
On armv4 these are defined as synonyms right now, but it's a bit ambiguous
what NOCACHE means (is buffering/write-combining also enabled or not?); this
is a first step towards replacing PTE_NOCACHE with a less ambiguous name.
2014-05-10 20:03:03 +00:00
ian
e825adc7a6 Eliminate irq_dispatch.S. Move the data items it contained into arm/intr.c
and the functionality it provided into arm/exception.S.  Rename the main
irq handling routine from arm_handler_execute() to arm_irq_handler() to
make it more congruent with how other exception handlers are named, and
also update its signature to reflect what has long been reality: it is
passed just a trapframe pointer, no interrupt number argument.
2014-03-10 18:10:09 +00:00
ian
3b592f9410 The arm exception entry points currently vector through a function pointer
to the actual handler routine.  All the pointers are static-intialized to
the only handlers available, and yet various platform-specific inits still
set those pointers (to the values they're already initialized to).  Begin
to drain the swamp by removing all the redundant external declarations and
runtime setting of the pointers that's scattered around various places.
2014-03-09 18:08:27 +00:00
imp
3b83a35d4d Remove bogus define that causes compile errors. Most of the defines
for SAM9X are going away soonish anyway (once FDT works), but until
then...
2014-03-09 02:28:30 +00:00
imp
c1c5cdf1e1 Move AIC related stuff to own file. 2014-03-08 06:06:50 +00:00
imp
0f914ddcb5 Properly round on unmapping. 2014-03-08 06:06:42 +00:00