code for the A20 to use the new PLATFORM_SMP interface, and extends it to
add support for the new SoCs allowing for both to coexist within the same
kernel.
Submitted by: Emmanuel Vadot <manu@bidouilliste.com>
Reviewed by: jmcneill
Differential Revision: https://reviews.freebsd.org/D5342
adds a lock to ensure only a single device is accessing the hardware. A
reference count is added to only enable when we start to use the clock,
and to disable after we have finished needing the clock.
This was extracted from a larger review to add OHCI support to the
Allwinner SoCs.
Submitted by: Emmanuel Vadot <manu@bidouilliste.com>
Reviewed by: jmcneill
X-Differential Revision: https://reviews.freebsd.org/D5481
Very similar to the A10 RTC controller with a few register offsets changed
and a different location for the LOSC switch status.
Submitted by: Emmanuel Vadot <manu@bidouilliste.com>
Reviewed by: jmcneill
Approved by: adrian (mentor)
Differential Revision: https://reviews.freebsd.org/D5500
taskqueue_enqueue() was changed to support both fast and non-fast
taskqueues 10 years ago in r154167. It has been a compat shim ever
since. It's time for the compat shim to go.
Submitted by: Howard Su <howard0su@gmail.com>
Reviewed by: sephe
Differential Revision: https://reviews.freebsd.org/D5131
is the physical memory size so may be larger than a u_long can hold, e.g.
on ARM with LPAE we could see an address space of up to 40 bits. On ARM
u_long is only 32 bits so the memory size will be truncated, possibly to
zero.
Reported by: bz
Sponsored by: ABT Systems Ltd
Summary:
As part of the migration of rman_res_t to be typed to uintmax_t, memory ranges
must be clamped appropriately for the bus, to prevent completely bogus addresses
from being used.
This is extracted from D4544.
Reviewed By: cem
Sponsored by: Alex Perez/Inertial Computing
Differential Revision: https://reviews.freebsd.org/D5134
Use u_long instead of uint32_t variables to avoid overflow
in case of PA space bigger than 32-bit.
Obtained from: Semihalf
Submitted by: Michal Stanek <mst@semihalf.com>
Sponsored by: Annapurna Labs
Approved by: cognet (mentor)
Reviewed by: andrew, br, wma
Differential revision: https://reviews.freebsd.org/D5393
different methods to start the secondary cores in a kernel built for
multiple SoCs, e.g. with the Allwinner A20 and A31.
Sponsored by: ABT systems Ltd
Differential Revision: https://reviews.freebsd.org/D5466
Newer Allwinner MMC implementations use a different FIFO register offset
(0x200 instead of 0x100). Since the FDT uses the same compat string for
both cases, base the decision on which FIFO offset to use on the Allwinner
SoC family.
Reviewed by: Emmanuel Vadot <manu@bidouilliste.com>
Approved by: gonzo (mentor)
Differential Revision: https://reviews.freebsd.org/D5468
the interrupt framework is also going to be used by another (MIPS)
architecture. IPI implementations may vary much across different
architectures.
An IPI implementation should still define INTR_IPI_COUNT and use
intr_ipi_setup_counters() to setup IPI counters which are inside of
intrcnt[] and intrnames[] arrays. Those are used for sysctl and ddb.
Then, intr_ipi_increment_count() should be used to increment obtained
counter.
Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D5459
Most calls to bus_alloc_resource() use "anywhere" as the range, with a given
count. Migrate these to use the new bus_alloc_resource_anywhere() API.
Reviewed by: jhb
Differential Revision: https://reviews.freebsd.org/D5370
intr_pic_init_secondary. Replace them with a direct call. On BCM2836
and ARMADA XP we need to add this function, but it can be empty.
Reviewed by: ian, imp
Sponsored by: ABT Systems Ltd
Differential Revision: https://reviews.freebsd.org/D5460
slightly wrong on the others. We should just check if mp_ncpus is set to
more than one CPU as we may wish to run on a single core even when SMP is
available.
Reviewed by: ian
Sponsored by: ABT Systems Ltd
Differential Revision: https://reviews.freebsd.org/D5458
support for the i2c, mmc, and gmac clocks. Further clocks can be added as
needed.
Submitted by: Emmanuel Vadot <manu@bidouilliste.com>
Reviewed by: jmcneill
Differential Revision: https://reviews.freebsd.org/D5339
The HDMI driver will attach a framebuffer device when a display is
connected. If the EDID can be read and contains a preferred mode, it
will be used. Otherwise the framebuffer will default to 800x600.
In addition, if the EDID contains a CEA-861 extension block and the
"basic audio" flag is set, audio playback at 48kHz 16-bit stereo is
enabled on the controller.
Reviewed by: andrew
Approved by: gonzo (mentor)
Differential Revision: https://reviews.freebsd.org/D5383
driver. This mostly involves selecting the register offsets to use at
runtime based on the hardware we are talking to.
Submitted by: Emmanuel Vadot <manu@bidouilliste.com>
Differential Revision: https://reviews.freebsd.org/D5327
will be needed when we bring in further support for these SoCs.
Submitted by: Emmanuel Vadot <manu@bidouilliste.com>
Differential Revision: https://reviews.freebsd.org/D5340
For sources and destinations marked "noincr", the previous code was
incorrectly programming the dedicated DMA channel control register
using bit definitions for normal DMA channels. This code path is not
currently used, but will be used by the HDMI audio driver in review.
Reviewed by: andrew
Approved by: gonzo (mentor)
Differential Revision: https://reviews.freebsd.org/D5382
Linux-driven changes to the way the chip's two interrupt controllers are
defined (we only support one of them) led to no interrupt processing, so
the system would hang after device instantiation. This workaround just
rewrites the FDT data on the fly to get interrupt handling back under the
control of the main GIC device.
If/when we ever support deep sleep modes that involve powering down the
main GIC, we'll have to undo this change, write a driver for the GPC-PIC,
and somehow manage the handoff of responsibilities between the two drivers
as the chip transitions in/out of deep sleep mode.
Only L2 PIPT cache is supported for __ARM_ARCH >= 6.
In fact, this is just a pure proclamation as this option is used
only in armv4 specific files now.
need to include it explicitly when <vm/vm_param.h> is already included.
Suggested by: alc
Reviewed by: alc
Differential Revision: https://reviews.freebsd.org/D5379
This simplifies checking for default resource range for bus_alloc_resource(),
and improves readability.
This is part of, and related to, the migration of rman_res_t from u_long to
uintmax_t.
Discussed with: jhb
Suggested by: marcel
FDT platform code to detect when we are booting on one of these SoCs. The
driver changes will be added shortly.
Submitted by: Emmanuel Vadot <manu@bidouilliste.com>
Differential Revision: https://reviews.freebsd.org/D5338
or pte-v6.h in files which needs it.
There are quite internal definitions in pte-v4.h and pte-v6.h headers
specific for corresponding pmap implementation. These headers should be
included only in very few files and an intention is to not hide for
which implementation such files are.
Further, sys/arm/arm/elf_trampoline.c is an example of file which
uses armv4 like pmap implementation for both armv4 and armv6 platforms.
This is another reason why pte.h which includes specific header
according to __ARM_ARCH is not created.
Create new pmap.h which includes specific header according to
__ARM_ARCH.
Note that <machine/pmap.h> is included from <vm/pmap.h> so one common
<machine/pmap.h> must exist.
Provide bus_get_bus_tag() for sparc64, powerpc, arm, arm64 and mips
nexus and its children in order to return a platform specific default tag.
This is required to ensure generic correctness of the bus_space tag.
It is especially needed for arches where child bus tag does not match
the parent bus tag. This solves the problem with ppc architecture
where the PCI bus tag differs from parent bus tag which is big-endian.
This commit is a part of the following patch:
https://reviews.freebsd.org/D4879
Submitted by: Marcin Mazurek <mma@semihalf.com>
Obtained from: Semihalf
Sponsored by: Annapurna Labs
Reviewed by: jhibbits, mmel
Differential Revision: https://reviews.freebsd.org/D4879
