Commit Graph

3443 Commits

Author SHA1 Message Date
skra
bb813c1116 Fix an occasional undefined instruction abort during module loading.
Even if data cache maintenance was done by IO code, the relocation
fixup process creates dirty cache entries that we must write back
before doing icache sync.

Reported by:	Thiagarajan Venkatasubramanian <tvenkata at juniper.net>
Reviewed by:	ian
2016-01-25 14:09:35 +00:00
skra
cab03eda21 Do not use blk_write_cont() and remove it. There si no need to call
blk_flush() between two writes by physical address when these are
PAGE_SIZE aligned.

Fix some style nits.
2016-01-25 12:55:24 +00:00
skra
f662b5681b Make minidump more like its i386 original back as with new pmap dump
interface all used physical addresses are PAGE_SIZE aligned.
Add missing copyright.

This is a follow up to r294722.
2016-01-25 12:49:08 +00:00
skra
27cafb38df Create new pmap dump interface for minidump and use it for existing
pmap implementations on ARM. This way minidump code can be used without
any platform specific modification.

Also, this is the last piece missing for ARM_NEW_PMAP.

Differential Revision:	https://reviews.freebsd.org/D5023
2016-01-25 12:43:07 +00:00
andrew
7444d26649 Add allwinner_machdep.h, it was missed in r294698. 2016-01-25 08:19:16 +00:00
andrew
246c221ba3 Update the Allwinner kernels:
* Use the ARM PLATFORM framework
 * Use ARM_INTRNG on teh A20 as it has a GICv2
 * Add a method to find which Allwinner SoC we are running on

Differential Revision:	https://reviews.freebsd.org/D5059
2016-01-25 00:24:57 +00:00
andrew
3a67b60795 Remove an extra newline that crept in. 2016-01-24 19:12:16 +00:00
andrew
6eb4db3a26 Add support for controlling the clocks for the audio codec and DMA engines.
Submitted by:	Jared McNeill <jmcneill@invisible.ca>
Differential Revision:	https://reviews.freebsd.org/D5052
2016-01-24 19:10:30 +00:00
andrew
359ecb5b96 Stop defining fdt_pic_table with ARM_INTRNG, it's unused. 2016-01-22 12:51:12 +00:00
andrew
1652ce7837 Remove an extra '!' found by clang 3.8. 2016-01-21 16:42:52 +00:00
zbb
fb8428bdbe Introduce initial driver for PMSU on Armada38x
This is a stub for PMSU driver. Note that it cannot be used to set the
secondary core boot address during attach because drivers are attached
later than SI_SUB_CPU sysinit where cores are started.
Setting the boot address should be done manually in platform_mp_start_ap().

SMP is working fine with this commit and was enabled in Armada38x kernel
configuration file.

Obtained from:	Semihalf
Sponsored by:	Stormshield
Submitted by:	Michal Stanek <mst@semihalf.com>
Differential revision:  https://reviews.freebsd.org/D4427
2016-01-20 14:49:16 +00:00
zbb
213b199382 Add initial support for SMP on Armada38x
- Add file sys/arm/mv/armada38x/armada38x_mp.c
- Set mp_maxid and mp_ncpus based on FDT unless SCU register indicates
  only one core
- Boot CPU1 in platform_mp_start_ap()
- IPI range defined

Obtained from:  Semihalf
Sponsored by:   Stormshield
Submitted by:   Michal Stanek <mst@semihalf.com>
Differential revision:  https://reviews.freebsd.org/D4426
2016-01-20 14:45:54 +00:00
zbb
5f6666ad92 Open window to bootROM memory on Armada38x to allow CPU1 to boot
CPU1 is halted in bootROM code while it is waiting to be released.
Memory window to bootROM must be opened before booting the core.

Obtained from:  Semihalf
Sponsored by:   Stormshield
Submitted by:   Michal Stanek <mst@semihalf.com>
Differential revision:  https://reviews.freebsd.org/D4425
2016-01-20 14:30:17 +00:00
zbb
19dfb7d609 Support watchdog depending on "mrvl,has-wdt" property
With this commit, watchdog is supported only in case of having
"mrvl,has-wdt" property or dedicated for watchdog compatibility field
("marvell,armada-380-wdt"). There is no need to modify dts files,
as "has-wdt" property already exists.

Obtained from:  Semihalf
Sponsored by:   Stormshield
Submitted by:   Bartosz Szczepanek <bsz@semihalf.com>
Differential revision:  https://reviews.freebsd.org/D4424
2016-01-20 14:28:05 +00:00
zbb
57f3351a9a Add support for watchdog on Armada38x
A38X watchdog support was implemented in sys/arm/mv/timer.c driver.
It required following modifications:
- add "marvell,armada-380-wdt" compatibility, which supports only watchdog
- correct and enhance definitions related to timer control register
- unmask reset capability in RSTOUTn_MASK register
- use dedicated watchdog timer on A38X instead of second timer

Obtained from:  Semihalf
Sponsored by:   Stormshield
Submitted by:   Bartosz Szczepanek <bsz@semihalf.com>
Differential revision:  https://reviews.freebsd.org/D4423
2016-01-20 14:23:57 +00:00
zbb
66cdcc9f30 Add support for I2C on Armada38x
Extend driver's compatible strings' table
and enable I2C compilation in kernconf.

Reviewed by:    andrew, ian
Obtained from:  Semihalf
Sponsored by:   Stormshield
Submitted by:   Jan Dabros <jsd@semihalf.com>
Differential revision:  https://reviews.freebsd.org/D4422
2016-01-20 14:21:06 +00:00
zbb
7fee54ce95 Add a new RTC driver for Armada38x
New driver registers RTC as system clock. New RTC resolution is 1 sec.
Settime and gettime functions were implemented.

Reviewed by:    andrew, ian
Obtained from:  Semihalf
Sponsored by:   Stormshield
Submitted by:   Jan Dabros <jsd@semihalf.com>
Differential revision:  https://reviews.freebsd.org/D4421
2016-01-20 14:18:49 +00:00
zbb
5f54b51589 Correct MV_DDR_CADR_BASE definiton in mvwin.h
SOC_MV_ARMADAXP ifdef was enhanced with SOC_MV_ARMADA38X,
correcting MV_DDR_CADR_BASE definition. It fixes PCIe hangs issue.

Reviewed by:    andrew
Obtained from:  Semihalf
Sponsored by:   Stormshield
Submitted by:   Bartosz Szczepanek <bsz@semihalf.com>
Differential revision:  https://reviews.freebsd.org/D4380
2016-01-20 14:16:13 +00:00
zbb
8328f0397d Change DTS entry of PCIe controller for Armada38x
Invalid (in FreeBSD) definition of PCI controller was
replaced with another one, working in FreeBSD environment.

PCI controller's entry had to move from its parent node
so as to be recognized properly by FBSD.

PCI was enabled in kernel configuration file.

Obtained from:	Semihalf
Sponsored by:	Stormshield
Submitted by:	Bartosz Szczepanek <bsz@semihalf.com>
Differential revision:  https://reviews.freebsd.org/D4379
2016-01-20 14:14:30 +00:00
zbb
81d332b3d1 Improve definitions of CPU/PCIe windows for Armada38x
Enhance existing ARMADAXP defines and introduce new MV_WIN_PCIE_
definitions.

Reviewed by:    andrew
Obtained from:  Semihalf
Sponsored by:   Stormshield
Submitted by:   Bartosz Szczepanek <bsz@semihalf.com>
Differential revision:  https://reviews.freebsd.org/D4378
2016-01-20 14:10:00 +00:00
zbb
8d821a3b90 Fix invalid root link detection in mv_pci driver
mv_pci driver omitted slot 0, which can be valid device on Armada38x.
New mechanism detects if device is root link, basing on vendor's
and device's IDs.
It is restricted to Armada38x; on other machines, behaviour remains
the same.

Reviewed by:    andrew
Obtained from:  Semihalf
Sponsored by:   Stormshield
Submitted by:   Bartosz Szczepanek <bsz@semihalf.com>
Differential revision:  https://reviews.freebsd.org/D4377
2016-01-20 14:05:21 +00:00
zbb
44fdaddddd Enhance remap capabilities for Armada38x
Add conditions corresponding to Armada38x-based SoCs,
enhancing their remap capabilities.
This is required for PCIe to work properly.

Reviewed by:    andrew
Obtained from:  Semihalf
Sponsored by:   Stormshield
Submitted by:   Bartosz Szczepanek <bsz@semihalf.com>
Differential revision:  https://reviews.freebsd.org/D4376
2016-01-20 14:02:36 +00:00
zbb
4940a10023 Enable USB in kernconf of Armada38x
With this commit, USB 2.0 works fine on Armada38x platforms.

Obtained from:  Semihalf
Sponsored by:   Stormshield
Submitted by:   Bartosz Szczepanek <bsz@semihalf.com>
Differential revision:  https://reviews.freebsd.org/D4375
2016-01-20 14:00:32 +00:00
zbb
182c23f7f5 Enable SCU unit for Armada38x
Valid SCU operation is necessary for SMP interoperability.
Initialization function armada38x_enable_scu() was added.

Reviewed by:    andrew, ian
Obtained from:  Semihalf
Sponsored by:   Stormshield
Submitted by:   Bartosz Szczepanek <bsz@semihalf.com>
Differential revision:  https://reviews.freebsd.org/D4220
2016-01-20 13:55:51 +00:00
zbb
62a64d8082 Set IO Sync Barrier flags for all Mbus devices on Armada38x
IO Sync Barrier setting is required for I/O coherency.

Reviewed by:   andrew, ian, imp
Obtained from: Semihalf
Sponsored by:  Stormshield
Submitted by:  Michal Stanek <mst@semihalf.com>
Differential revision:  https://reviews.freebsd.org/D4219
2016-01-20 13:53:33 +00:00
zbb
d3ec1c5945 Fix GIC FDT interrupts decoding
Interrupt type in FDT was interpreted incorrectly.
Patch taken from freebsd-arm thread 'GIC - interrupts interpretation in
DTS/FDT':
https://lists.freebsd.org/pipermail/freebsd-arm/2015-August/012145.html

Reviewed by:    ian, imp
Obtained from:  Semihalf
Sponsored by:   Stormshield
Submitted by:   Michal Stanek <mst@semihalf.com>
Differential revision:  https://reviews.freebsd.org/D4215
2016-01-20 13:45:35 +00:00
zbb
cda843985a Use GIC-specific decoding function in mv_common.c
Add gic_decode_fdt function to fdt_pic_table, allowing to recognize GIC
interrupts on Armada38x. SOC_MV_ARMADA38X ifdef is required because A38X
is the only Marvell's platform in FreeBSD using GIC; lack of ifdef would
lead to linking errors on other platforms.

Reviewed by:    andrew, ian, imp
Obtained from:  Semihalf
Sponsored by:   Stormshield
Submitted by:   Michal Stanek <mst@semihalf.com>
Differential revision:  https://reviews.freebsd.org/D4214
2016-01-20 13:42:54 +00:00
zbb
f1ec2b599b Do not require strict compatibility on simplebus
Strict compatibility requirement is a root of problems when simplebus'
node has two compatibility strings (i.e. on Armada38x). Removing this
requirement should not interfere with other platforms.

fdt_is_compatible_strict() and fdt_find_compatible() calls were changed
in fdt_common.c and mv_common.c.

Reviewed by:    ian, imp
Obtained from:	Semihalf
Sponsored by:	Stormshield
Submitted by:	Bartosz Szczepanek <bsz@semihalf.com>
Differential revision:  https://reviews.freebsd.org/D4602
2016-01-20 13:35:06 +00:00
zbb
5c07389dae Introduce initial support for Marvell Armada38x
This commit introduces initial support for Marvell Armada38x platform.
Changes:
- Add common DTS files for Armada38x SoCs and DTS file for A388-GP
- Add ARMADA38X kernel configuration
- Add option SOC_MV_ARMADA38X and set MV_PCI_PORTS
- Add list of files to compile
- Implement get_tclk(), get_sar_value(), cpu_reset() functions
- Add CPU ID and SoC numbers
- Correct ifdefs in arm/mv/timer.c

Reviewed by:    ian, imp
Obtained from:  Semihalf
Sponsored by:   Stormshield
Submitted by:   Michal Stanek <mst@semihalf.com>
Differential revision:  https://reviews.freebsd.org/D4210
2016-01-20 13:14:36 +00:00
zbb
563073febe Mark gpio as "optional" in files.mv and edit Marvell's kernconfs
Including arm/mv/gpio.c now depends on 'gpio' device. 'device gpio' was
added to all kernconf files of Marvell boards, except ARMADAXP (dummy
mv_gpio_res definition was removed) and ARMADA38X (not supported yet).

This commit allows to use generic files.mv on A38X.

Reviewed by:    andrew
Obtained from:	Semihalf
Sponsored by:	Stormshield
Submitted by:	Bartosz Szczepanek <bsz@semihalf.com>
Differential revision:	https://reviews.freebsd.org/D4372
2016-01-20 11:57:11 +00:00
andrew
1280f00d4b Add extra checks to make sure the size is valid. We may get an integer
underflow when we have small blocks of memory at the start and end of the
32-bit address range.

While here, only insert mappings pointing at a non-zero amount of memory.

Sponsored by:	ABT Systems Ltd
2016-01-18 00:07:04 +00:00
jhibbits
9a6a21e1b5 Quick exit after setting the clock control register.
Discussed with:	ian
2016-01-17 23:03:21 +00:00
andrew
f52ebb9e17 Use __ARM_ARCH to decide when ARM_TP_ADDRESS needs to be set. This fixes
an issue with clang 3.8.0 where none of the __ARM_ARCH_*__ macros were
defined on some ARMv6 kernel configs.

Sponsored by:	ABT Systems Ltd
2016-01-16 10:12:50 +00:00
imp
6d123b64fd We don't need at91_bs_tag. arm_base_bs_tag works now that we have
better dynamic device mapping that didn't exit when we started this
port. Remove it, since everything works w/o it.
2016-01-16 05:47:34 +00:00
imp
aa760804a7 Move ohci files to their proper place in the tree for atmel.
Fix when it is included (we don't have a at91rm9200 device).
From a similar patch in the PR, with tweaked names.

PR: 206229
2016-01-16 04:47:32 +00:00
skra
12fce57c8c Add mmu format info into ARM vmcore.
Fix kvatop translation for 64K pages.

Reviewed by:	jhb
Approved by:	kib (mentor)
Differential Revision:    https://reviews.freebsd.org/D4942
2016-01-15 18:53:06 +00:00
ian
60d3f112d9 Reduce diffs to upstream by adding a couple comment blocks and moving the
parse_boot_param() function to the end of the file.
2016-01-15 18:27:34 +00:00
andrew
01d02bef05 Remove the commented out sc device from the i.MX kernels, they both use
vt(4).
2016-01-15 11:40:41 +00:00
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
ian
dc94e24d2b Fix the spelling of fueword* to eliminate compile warnings about mismatched
begin/end symbols when the warning level is turned up.

Submitted by:	Steve Kiernan <stevek@juniper.net>
2016-01-13 14:39:39 +00:00
skra
4e6dc1dd4d Fix local macro for early KVA allocation.
Only crashdumpmap allocation was affected which is used for temporary
mappings during panic dump.

Approved by:	kib (mentor)
2016-01-12 15:31:32 +00:00
dchagin
e706df7b9a Implement vsyscall hack. Prior to 2.13 glibc uses vsyscall
instead of vdso. An upcoming linux_base-c6 needs it.

Differential Revision:  https://reviews.freebsd.org/D1090

Reviewed by:	kib, trasz
MFC after:	1 week
2016-01-09 20:18:53 +00:00
skra
d1805666fa Print curpmap in "show pcpu" command.
Approved by:	kib (mentor)
2016-01-07 12:31:49 +00:00
ian
f74b061230 Store the pointer to the bootloader-provided env data in a static var
for use in debug printing.
2016-01-03 14:42:28 +00:00
ian
68e5953df5 Reword the comment to better describe what I found while researching the
problem that led to this temporary workaround (and also so I can properly
cite the PR in the commit this time).

In general this is intended to be a temporary workaround until we can figure
out why including any ram from the last megabyte of the physical address
space leads to a NULL pointer deref.  Debugging that is made trickier by the
fact that I couldn't even get a backtrace in ddb.

PR:		201614
2016-01-02 23:14:52 +00:00
ian
165fa8904b Work around problems that happen when there is ram at the end of the
physical address space.
2016-01-02 22:31:14 +00:00
ian
8f3f2be925 Use 64-bit math when processing the lists of physical and excluded memory
to generate the phys_avail and dump_avail arrays.

This is a partial fix for the kernel side of the problem mentioned in the
PR.  This part handles the cases where comparing start and end addresses of
a block would fail because 32-bit wrap caused the end address to come out
zero if the end of the region is the end of the address space (0xffffffff
with 32-bit vm_paddr_t, but now the code should also work right if we ever
support LPAE with 36-bit addresses).

More work is necessary to make systems with ram at the end of the physical
address space usable, but at least initially it's going to be more like a
workaround than a fix, so this non-hacky part is being committed first.

PR:		201614
2016-01-02 22:00:52 +00:00
ian
3d96cedc35 Make the 'env' directive described in config(5) work on all architectures,
providing compiled-in static environment data that is used instead of any
data passed in from a boot loader.

Previously 'env' worked only on i386 and arm xscale systems, because it
required the MD startup code to examine the global envmode variable and
decide whether to use static_env or an environment obtained from the boot
loader, and set the global kern_envp accordingly.  Most startup code wasn't
doing so.  Making things even more complex, some mips startup code uses an
alternate scheme that involves calling init_static_kenv() to pass an empty
buffer and its size, then uses a series of kern_setenv() calls to populate
that buffer.

Now all MD startup code calls init_static_kenv(), and that routine provides
a single point where envmode is checked and the decision is made whether to
use the compiled-in static_kenv or the values provided by the MD code.

The routine also continues to serve its original purpose for mips; if a
non-zero buffer size is passed the routine installs the empty buffer ready
to accept kern_setenv() values.  Now if the size is zero, the provided buffer
full of existing env data is installed.  A NULL pointer can be passed if the
boot loader provides no env data; this allows the static env to be installed
if envmode is set to do so.

Most of the work here is a near-mechanical change to call the init function
instead of directly setting kern_envp.  A notable exception is in xen/pv.c;
that code was originally installing a buffer full of preformatted env data
along with its non-zero size (like mips code does), which would have allowed
kern_setenv() calls to wipe out the preformatted data.  Now it passes a zero
for the size so that the buffer of data it installs is treated as
non-writeable.
2016-01-02 02:53:48 +00:00
ian
a09b08770e Bring some of the recent locore-v4.S improvements into locore-V6...
- Map all 4GB as VA=PA so that args passed in from a bootloader can
   be accessed regardless of where they are.
 - Figure out the kernel load address by directly masking the PC rather
   then by doing pc-relative math on the _start symbol.
 - For EARLY_PRINTF support, map device memory as uncacheable (no-op for
   ARM_NEW_PMAP because all TEX types resolve to uncacheable).
2015-12-29 22:18:35 +00:00
kevlo
866a3cb2f1 Fix typo (s/harware/hardware/) 2015-12-25 14:51:36 +00:00