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Add huge TLB support to the metag architecture.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
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Meta has instructions for accessing:
- bytes - GETB (1 byte)
- words - GETW (2 bytes)
- doublewords - GETD (4 bytes)
- longwords - GETL (8 bytes)
All accesses must be aligned. Unaligned accesses can be detected and
made to fault on Meta2, however it isn't possible to fix up unaligned
writes so we don't bother fixing up reads either.
This patch adds metag memory handling code including:
- I/O memory (io.h, ioremap.c): Actually any virtual memory can be
accessed with these helpers. A part of the non-MMUable address space
is used for memory mapped I/O. The ioremap() function is implemented
one to one for non-MMUable addresses.
- User memory (uaccess.h, usercopy.c): User memory is directly
accessible from privileged code.
- Kernel memory (maccess.c): probe_kernel_write() needs to be
overwridden to use the I/O functions when doing a simple aligned
write to non-writecombined memory, otherwise the write may be split
by the generic version.
Note that due to the fact that a portion of the virtual address space is
non-MMUable, and therefore always maps directly to the physical address
space, metag specific I/O functions are made available (metag_in32,
metag_out32 etc). These cast the address argument to a pointer so that
they can be used with raw physical addresses. These accessors are only
to be used for accessing fixed core Meta architecture registers in the
non-MMU region, and not for any SoC/peripheral registers.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
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Add memory management files for metag.
Meta's 32bit virtual address space is split into two halves:
- local (0x08000000-0x7fffffff): traditionally local to a hardware
thread and incoherent between hardware threads. Each hardware thread
has it's own local MMU table. On Meta2 the local space can be
globally coherent (GCOn) if the cache partitions coincide.
- global (0x88000000-0xffff0000): coherent and traditionally global
between hardware threads. On Meta2, each hardware thread has it's own
global MMU table.
The low 128MiB of each half is non-MMUable and maps directly to the
physical address space:
- 0x00010000-0x07ffffff: contains Meta core registers and maps SoC bus
- 0x80000000-0x87ffffff: contains low latency global core memories
Linux usually further splits the local virtual address space like this:
- 0x08000000-0x3fffffff: user mappings
- 0x40000000-0x7fffffff: kernel mappings
Signed-off-by: James Hogan <james.hogan@imgtec.com>
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Add cache and TLB handling code for metag, including the required
callbacks used by MM switches and DMA operations. Caches can be
partitioned between the hardware threads and the global space, however
this is usually configured by the bootloader so Linux doesn't make any
changes to this configuration. TLBs aren't configurable, so only need
consideration to flush them.
On Meta1 the L1 cache was VIVT which required a full flush on MM switch.
Meta2 has a VIPT L1 cache so it doesn't require the full flush on MM
switch. Meta2 can also have a writeback L2 with hardware prefetch which
requires some special handling. Support is optional, and the L2 can be
detected and initialised by Linux.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
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Add source files from the Thread Binary Interface (TBI) library which
provides useful low level operations and traps/context management.
Among other things it handles interrupt/exception/syscall entry (in
tbipcx.S).
Signed-off-by: James Hogan <james.hogan@imgtec.com>
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Add the main header for the Thread Binary Interface (TBI) library which
provides useful low level operations and trap/context management.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
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Add boot code for metag. Due to the multi-threaded nature of Meta it is
not uncommon for an RTOS or bare metal application to be started on
other hardware threads by the bootloader. Since there is a single MMU
switch which affects all threads, the MMU is traditionally configured by
the bootloader prior to starting Linux. The bootloader passes a
structure to Linux which among other things contains information about
memory regions which have been mapped. Linux then assumes control of the
local heap memory region.
A kernel arguments string pointer or a flattened device tree pointer can
be provided in the third argument.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
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Add the header <asm/metag_mem.h> describing addresses, fields, and bits
of various core memory mapped registers in the low non-MMU region.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
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Add a couple of header files containing core architecture constants.
The first (<asm/metag_isa.h>) contains some constants relating to the
instruction set, such as values to give to the CACHEW and CACHER
instructions.
The second (<asm/metag_regs.h>) contains constants for the core register
units directly accessible to various instructions, and for the
registers, fields, and bits in those units. The main units described are
the control unit (CT.*), the trigger unit (TR.*), and the run-time trace
unit (TT.*).
Signed-off-by: James Hogan <james.hogan@imgtec.com>
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On 64 bit architectures with no efficient unaligned access, padding and
explicit alignment must be added in various places to prevent unaligned
64bit accesses (such as taskstats and trace ring buffer).
However this also needs to apply to 32 bit architectures with 64 bit
accesses requiring alignment such as metag.
This is solved by adding a new Kconfig symbol HAVE_64BIT_ALIGNED_ACCESS
which defaults to 64BIT && !HAVE_EFFICIENT_UNALIGNED_ACCESS, and can be
explicitly selected by METAG and any other relevant architectures. This
can be used in various places to determine whether 64bit alignment is
required.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Eric Paris <eparis@redhat.com>
Cc: Will Drewry <wad@chromium.org>
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commit e72837e3e7bae3f182c4ac63c9424e86f1158dd0 introduced
a default SET_PERSONALITY() in include/linux/elf.h.
This breaks with our own SET_PERSONALITY define for
32bit userspace on 64bit kernel.
Signed-off-by: Helge Deller <deller@gmx.de>
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PA-RISC is the only arch that installs the modules when installing the kernel.
Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Signed-off-by: Helge Deller <deller@gmx.de>
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This fixes compile warnings like this one:
net/ipv4/igmp.c: In function ‘ip_mc_leave_group’:
net/ipv4/igmp.c:1898:3: warning: overflow in implicit constant conversion [-Woverflow]
atomic_sub() is defined as __atomic_add_return(-(VAL),(v))))
and if VAL is of type unsigned int (as returned by sizeof()), negating
this value will overflow. Fix this by type-casting VAL to int type.
Signed-off-by: Helge Deller <deller@gmx.de>
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Avoid this warning, while still prevent gcc from optimizing away the exception code:
arch/parisc/lib/memcpy.c: In function ‘pa_memcpy’:
arch/parisc/lib/memcpy.c:256:2: warning: ‘dummy’ may be used uninitialized in this function [-Wuninitialized]
Signed-off-by: Helge Deller <deller@gmx.de>
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clean up after commit 6e26aab98ce8a818fb1ec47f8f727a8480a9011b
(switch to generic sigaltstack)
Signed-off-by: Helge Deller <deller@gmx.de>
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Signed-off-by: Helge Deller <deller@gmx.de>
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Avoid the following warning when configuring the kernel for parisc:
warning: (LOCKDEP && FAULT_INJECTION_STACKTRACE_FILTER && LATENCYTOP && KMEMCHECK) selects FRAME_POINTER \
which has unmet direct dependencies (DEBUG_KERNEL && (CRIS || M68K || FRV || UML || AVR32 || SUPERH || \
BLACKFIN || MN10300) || ARCH_WANT_FRAME_POINTERS)
Signed-off-by: Helge Deller <deller@gmx.de>
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Tim found:
WARNING: at arch/x86/kernel/smpboot.c:324 topology_sane.isra.2+0x6f/0x80()
Hardware name: S2600CP
sched: CPU #1's llc-sibling CPU #0 is not on the same node! [node: 1 != 0]. Ignoring dependency.
smpboot: Booting Node 1, Processors #1
Modules linked in:
Pid: 0, comm: swapper/1 Not tainted 3.9.0-0-generic #1
Call Trace:
set_cpu_sibling_map+0x279/0x449
start_secondary+0x11d/0x1e5
Don Morris reproduced on a HP z620 workstation, and bisected it to
commit e8d195525809 ("acpi, memory-hotplug: parse SRAT before memblock
is ready")
It turns out movable_map has some problems, and it breaks several things
1. numa_init is called several times, NOT just for srat. so those
nodes_clear(numa_nodes_parsed)
memset(&numa_meminfo, 0, sizeof(numa_meminfo))
can not be just removed. Need to consider sequence is: numaq, srat, amd, dummy.
and make fall back path working.
2. simply split acpi_numa_init to early_parse_srat.
a. that early_parse_srat is NOT called for ia64, so you break ia64.
b. for (i = 0; i < MAX_LOCAL_APIC; i++)
set_apicid_to_node(i, NUMA_NO_NODE)
still left in numa_init. So it will just clear result from early_parse_srat.
it should be moved before that....
c. it breaks ACPI_TABLE_OVERIDE...as the acpi table scan is moved
early before override from INITRD is settled.
3. that patch TITLE is total misleading, there is NO x86 in the title,
but it changes critical x86 code. It caused x86 guys did not
pay attention to find the problem early. Those patches really should
be routed via tip/x86/mm.
4. after that commit, following range can not use movable ram:
a. real_mode code.... well..funny, legacy Node0 [0,1M) could be hot-removed?
b. initrd... it will be freed after booting, so it could be on movable...
c. crashkernel for kdump...: looks like we can not put kdump kernel above 4G
anymore.
d. init_mem_mapping: can not put page table high anymore.
e. initmem_init: vmemmap can not be high local node anymore. That is
not good.
If node is hotplugable, the mem related range like page table and
vmemmap could be on the that node without problem and should be on that
node.
We have workaround patch that could fix some problems, but some can not
be fixed.
So just remove that offending commit and related ones including:
f7210e6c4ac7 ("mm/memblock.c: use CONFIG_HAVE_MEMBLOCK_NODE_MAP to
protect movablecore_map in memblock_overlaps_region().")
01a178a94e8e ("acpi, memory-hotplug: support getting hotplug info from
SRAT")
27168d38fa20 ("acpi, memory-hotplug: extend movablemem_map ranges to
the end of node")
e8d195525809 ("acpi, memory-hotplug: parse SRAT before memblock is
ready")
fb06bc8e5f42 ("page_alloc: bootmem limit with movablecore_map")
42f47e27e761 ("page_alloc: make movablemem_map have higher priority")
6981ec31146c ("page_alloc: introduce zone_movable_limit[] to keep
movable limit for nodes")
34b71f1e04fc ("page_alloc: add movable_memmap kernel parameter")
4d59a75125d5 ("x86: get pg_data_t's memory from other node")
Later we should have patches that will make sure kernel put page table
and vmemmap on local node ram instead of push them down to node0. Also
need to find way to put other kernel used ram to local node ram.
Reported-by: Tim Gardner <tim.gardner@canonical.com>
Reported-by: Don Morris <don.morris@hp.com>
Bisected-by: Don Morris <don.morris@hp.com>
Tested-by: Don Morris <don.morris@hp.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Thomas Renninger <trenn@suse.de>
Cc: Tejun Heo <tj@kernel.org>
Cc: Tang Chen <tangchen@cn.fujitsu.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
Pull signal/compat fixes from Al Viro:
"Fixes for several regressions introduced in the last signal.git pile,
along with fixing bugs in truncate and ftruncate compat (on just about
anything biarch at least one of those two had been done wrong)."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal:
compat: restore timerfd settime and gettime compat syscalls
[regression] braino in "sparc: convert to ksignal"
fix compat truncate/ftruncate
switch lseek to COMPAT_SYSCALL_DEFINE
lseek() and truncate() on sparc really need sign extension
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git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull new ARC architecture from Vineet Gupta:
"Initial ARC Linux port with some fixes on top for 3.9-rc1:
I would like to introduce the Linux port to ARC Processors (from
Synopsys) for 3.9-rc1. The patch-set has been discussed on the public
lists since Nov and has received a fair bit of review, specially from
Arnd, tglx, Al and other subsystem maintainers for DeviceTree, kgdb...
The arch bits are in arch/arc, some asm-generic changes (acked by
Arnd), a minor change to PARISC (acked by Helge).
The series is a touch bigger for a new port for 2 main reasons:
1. It enables a basic kernel in first sub-series and adds
ptrace/kgdb/.. later
2. Some of the fallout of review (DeviceTree support, multi-platform-
image support) were added on top of orig series, primarily to
record the revision history.
This updated pull request additionally contains
- fixes due to our GNU tools catching up with the new syscall/ptrace
ABI
- some (minor) cross-arch Kconfig updates."
* tag 'arc-v3.9-rc1-late' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: (82 commits)
ARC: split elf.h into uapi and export it for userspace
ARC: Fixup the current ABI version
ARC: gdbserver using regset interface possibly broken
ARC: Kconfig cleanup tracking cross-arch Kconfig pruning in merge window
ARC: make a copy of flat DT
ARC: [plat-arcfpga] DT arc-uart bindings change: "baud" => "current-speed"
ARC: Ensure CONFIG_VIRT_TO_BUS is not enabled
ARC: Fix pt_orig_r8 access
ARC: [3.9] Fallout of hlist iterator update
ARC: 64bit RTSC timestamp hardware issue
ARC: Don't fiddle with non-existent caches
ARC: Add self to MAINTAINERS
ARC: Provide a default serial.h for uart drivers needing BASE_BAUD
ARC: [plat-arcfpga] defconfig for fully loaded ARC Linux
ARC: [Review] Multi-platform image #8: platform registers SMP callbacks
ARC: [Review] Multi-platform image #7: SMP common code to use callbacks
ARC: [Review] Multi-platform image #6: cpu-to-dma-addr optional
ARC: [Review] Multi-platform image #5: NR_IRQS defined by ARC core
ARC: [Review] Multi-platform image #4: Isolate platform headers
ARC: [Review] Multi-platform image #3: switch to board callback
...
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Pull MIPS updates from Ralf Baechle:
o Add basic support for the Mediatek/Ralink Wireless SoC family.
o The Qualcomm Atheros platform is extended by support for the new
QCA955X SoC series as well as a bunch of patches that get the code
ready for OF support.
o Lantiq and BCM47XX platform have a few improvements and bug fixes.
o MIPS has sent a few patches that get the kernel ready for the
upcoming microMIPS support.
o The rest of the series is made up of small bug fixes and cleanups
that relate to various parts of the MIPS code. The biggy in there is
a whitespace cleanup. After I was sent another set of whitespace
cleanup patches I decided it was the time to clean the whitespace
"issues" for once and and that touches many files below arch/mips/.
Fix up silly conflicts, mostly due to whitespace cleanups.
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (105 commits)
MIPS: Quit exporting kernel internel break codes to uapi/asm/break.h
MIPS: remove broken conditional inside vpe loader code
MIPS: SMTC: fix implicit declaration of set_vi_handler
MIPS: early_printk: drop __init annotations
MIPS: Probe for and report hardware virtualization support.
MIPS: ath79: add support for the Qualcomm Atheros AP136-010 board
MIPS: ath79: add USB controller registration code for the QCA955X SoCs
MIPS: ath79: add PCI controller registration code for the QCA955X SoCs
MIPS: ath79: add WMAC registration code for the QCA955X SoCs
MIPS: ath79: register UART for the QCA955X SoCs
MIPS: ath79: add QCA955X specific glue to ath79_device_reset_{set, clear}
MIPS: ath79: add GPIO setup code for the QCA955X SoCs
MIPS: ath79: add IRQ handling code for the QCA955X SoCs
MIPS: ath79: add clock setup code for the QCA955X SoCs
MIPS: ath79: add SoC detection code for the QCA955X SoCs
MIPS: ath79: add early printk support for the QCA955X SoCs
MIPS: ath79: fix WMAC IRQ resource assignment
mips: reserve elfcorehdr
mips: Make sure kernel memory is in iomem
MIPS: ath79: use dynamically allocated USB platform devices
...
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Commit 0cc41e4a21d43 (arch: remove direct definitions of KERN_<LEVEL>
uses) is broken - not enough thought was put into changing:
.asciz "string"
to
.asciz "string1" "string2"
The problem is that each string gets _separately_ NUL terminated, so
the result is a string containing:
"string1\0string2\0"
rather than:
"string1string2\0"
With our new printk levels, this ends up as - eg, KERN_DEBUG "string":
0x01 0x00 0x07 0x00 "string" 0x00
which produces lots of \x01 in the kernel log.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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There is no hypercall to setup multiple MSI per PCI device.
As such with these two new commits:
- 08261d87f7d1b6253ab3223756625a5c74532293
PCI/MSI: Enable multiple MSIs with pci_enable_msi_block_auto()
- 5ca72c4f7c412c2002363218901eba5516c476b1
AHCI: Support multiple MSIs
we would call the PHYSDEVOP_map_pirq 'nvec' times with the same
contents of the PCI device. Sander discovered that we would get
the same PIRQ value 'nvec' times and return said values to the
caller. That of course meant that the device was configured only
with one MSI and AHCI would fail with:
ahci 0000:00:11.0: version 3.0
xen: registering gsi 19 triggering 0 polarity 1
xen: --> pirq=19 -> irq=19 (gsi=19)
(XEN) [2013-02-27 19:43:07] IOAPIC[0]: Set PCI routing entry (6-19 -> 0x99 -> IRQ 19 Mode:1 Active:1)
ahci 0000:00:11.0: AHCI 0001.0200 32 slots 4 ports 6 Gbps 0xf impl SATA mode
ahci 0000:00:11.0: flags: 64bit ncq sntf ilck pm led clo pmp pio slum part
ahci: probe of 0000:00:11.0 failed with error -22
That is b/c in ahci_host_activate the second call to
devm_request_threaded_irq would return -EINVAL as we passed in
(on the second run) an IRQ that was never initialized.
CC: stable@vger.kernel.org
Reported-and-Tested-by: Sander Eikelenboom <linux@eikelenboom.it>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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The ath79_wdt driver uses a fixed memory address
currently. Although this is working with each
currently supported SoCs, but this may change
in the future. Additionally, the driver includes
platform specific header files in order to be
able to get the memory base of the watchdog
device.
The patch adds a memory resource to the platform
device, and converts the driver to get the base
address of the watchdog device from that.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Remove the static watchdog device variable and use
the 'platform_device_register_simple' helper to
allocate and register the device in one step.
This allows us to save a few bytes in the kernel image.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Pull one kvm bugfix from Gleb Natapov.
* git://git.kernel.org/pub/scm/virt/kvm/kvm:
x86/kvm: Fix pvclock vsyscall fixmap
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC mvebu platform changes from Olof Johansson:
"This series contains changes for the Marvell EBU platforms (mvebu,
orion, kirkwood, dove) that were not part of the first set of pull
requests because of dependencies on the MMC tree, and being submitted
a little late.
Notable changes are:
- More devices get moved out of board files into device tree
descriptions. The remaining devices listed in there have patches
that will get sent for 3.10, after which we can remove a lot of the
board files entirely. We are doing the pinctrl and mmc drivers
here, ethernet and PCI still remain.
- SMP support for mvebu is improved with support for the local
interrupt controller.
- The Guruplug board file gets replaced with a DT description.
Unfortunately, the dependency on the MMC tree turned out to be a much
larger problem than expected, when the MMC maintainer rebased the
patches in his tree that all of the patches in this branch are based
on, which caused merge conflicts between the new and old versions of
those patches.
To work around the merge conflicts, this branch rebases all patches on
top of the respective MMC patches that did get merged into 3.9. The
patches are all identical to the versions that were part of
linux-next, but have a new commit date."
* tag 'late-mvebu-rebased' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (90 commits)
arm: mvebu: enable the SD card slot on Armada 370 Reference Design board
ARM: kirkwood: topkick: init mvsdio via DT
ARM: kirkwood: nsa310: convert to pinctrl
ARM: Kirkwood: topkick: Enable i2c bus.
ARM: kirkwood: topkick: convert to pinctrl
ARM: dove: convert serial DT nodes to clocks property
arm: mvebu: Add SPI flash on Armada 370 DB board
arm: mvebu: Add SPI flash on Armada XP-DB board
arm: mvebu: Add SPI flash on Armada XP-GP board
arm: mvebu: Add support for SPI controller in Armada 370/XP
clocksource: update and move armada-370-xp-timer documentation to timer directory
arm: mvebu: update DT to support local timers
ARM: Dove: convert usb host controller to DT
arm: mvebu: Enable USB controllers on Armada 370/XP boards
arm: mvebu: Add support for USB host controllers in Armada 370/XP
arm: mvebu: add button for OpenBlocks AX3-4
ARM: Kirkwood: Convert NS2 to gpio-poweroff.
ARM: Kirkwood: Convert NSA310 I2C to device tree
ARM: Kirkwood: Convert NSA310 to use gpio-poweroff driver
ARM: Kirkwood: Convert NSA310 to DT based regulators.
...
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC late OMAP changes from Olof Johansson:
"This branch contains changes for OMAP that came in late during the
release staging, close to when the merge window opened.
It contains, among other things:
- OMAP PM fixes and some patches for audio device integration
- OMAP clock fixes related to common clock conversion
- A set of patches cleaning up WFI entry and blocking.
- A set of fixes and IP block support for PM on TI AM33xx SoCs
(Beaglebone, etc)
- A set of smaller fixes and cleanups around AM33xx restart and
revision detection, as well as removal of some dead code
(CONFIG_32K_TIMER_HZ)"
* tag 'late-omap' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (34 commits)
ARM: omap2: include linux/errno.h in hwmod_reset
ARM: OMAP2+: fix some omap_device_build() calls that aren't compiled by default
ARM: OMAP4: hwmod data: Enable AESS hwmod device
ARM: OMAP4: hwmod data: Update AESS data with memory bank area
ARM: OMAP4+: AESS: enable internal auto-gating during initial setup
ASoC: TI AESS: add autogating-enable function, callable from architecture code
ARM: OMAP2+: hwmod: add enable_preprogram hook
ARM: OMAP4: clock data: Add missing clkdm association for dpll_usb
ARM: OMAP2+: PM: Fix the dt return condition in pm_late_init()
ARM: OMAP2: am33xx-hwmod: Fix "register offset NULL check" bug
ARM: OMAP2+: AM33xx: hwmod: add missing HWMOD_NO_IDLEST flags
ARM: OMAP: AM33xx hwmod: Add parent-child relationship for PWM subsystem
ARM: OMAP: AM33xx hwmod: Corrects PWM subsystem HWMOD entries
ARM: DTS: AM33XX: Add nodes for OCMC RAM and WKUP-M3
ARM: OMAP2+: AM33XX: Update the hardreset API
ARM: OMAP2+: AM33XX: hwmod: Update the WKUP-M3 hwmod with reset status bit
ARM: OMAP2+: AM33XX: hwmod: Fixup cpgmac0 hwmod entry
ARM: OMAP2+: AM33XX: hwmod: Update TPTC0 hwmod with the right flags
ARM: OMAP2+: AM33XX: hwmod: Register OCMC RAM hwmod
ARM: OMAP2+: AM33XX: CM/PRM: Use __ASSEMBLER__ macros in header files
...
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Pull ARM SoC i.MX DT changes from Olof Johansson:
"This branch contains of devicetree changes for the Freescale i.MX
platform.
The base patch of the branch changes the format of the dts files to a
slightly different format that makes it easier to do derivative board
definitions, but it also introduces a lot of churn in the process
since every line of the file is touched.
On top of that are a handful of the regular changes; enabling more
boards as DT-based instead of legacy board files (mx25pdk), enabling
another driver for devicetree and thus adding bindings (onewire), etc.
I'm not happy about the churn, and will likely not take it for other
platforms in the future."
* tag 'late-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (21 commits)
ARM: dts: add dtsi for imx6q and imx6dl
ARM: dts: rename imx6q.dtsi to imx6qdl.dtsi
ARM: dts: i.MX6: Add regulator delay support
ARM: dts: Add device tree entry for onewire master on i.MX53
ARM: i.MX53: Add clocks for i.mx53 onewire master.
W1: Add device tree support to MXC onewire master.
ARM: imx: enable imx6q-cpufreq support
ARM: dts: Add apf51 basic support
ARM i.MX6: change mxs usbphy clock usage
ARM: dts: imx6q: Remove silicon version from SDMA firmware
ARM i.MX53: dts: add oftree for MBa53 baseboard
ARM i.MX53: add dts for the TQ tqma53 module
ARM: dts: imx53: pinctrl update
ARM i.MX51 babbage: Add keypad support
ARM: dts: imx: Add imx51 KPP entry
ARM: dts: imx25-karo-tx25: Put status entry in the end
ARM: mx25pdk: Add device tree support
ARM: dts: imx: use nodes label in board dts
ARM: dts: add missing imx dtb targets
ARM: boot: dts: Add an entry for imx27-pdk.dtb
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git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
Pull thermal management updates from Zhang Rui:
"Highlights:
- introduction of Dove thermal sensor driver.
- introduction of Kirkwood thermal sensor driver.
- introduction of intel_powerclamp thermal cooling device driver.
- add interrupt and DT support for rcar thermal driver.
- add thermal emulation support which allows platform thermal driver
to do software/hardware emulation for thermal issues."
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (36 commits)
thermal: rcar: remove __devinitconst
thermal: return an error on failure to register thermal class
Thermal: rename thermal governor Kconfig option to avoid generic naming
thermal: exynos: Use the new thermal trend type for quick cooling action.
Thermal: exynos: Add support for temperature falling interrupt.
Thermal: Dove: Add Themal sensor support for Dove.
thermal: Add support for the thermal sensor on Kirkwood SoCs
thermal: rcar: add Device Tree support
thermal: rcar: remove machine_power_off() from rcar_thermal_notify()
thermal: rcar: add interrupt support
thermal: rcar: add read/write functions for common/priv data
thermal: rcar: multi channel support
thermal: rcar: use mutex lock instead of spin lock
thermal: rcar: enable CPCTL to use hardware TSC deciding
thermal: rcar: use parenthesis on macro
Thermal: fix a build warning when CONFIG_THERMAL_EMULATION cleared
Thermal: fix a wrong comment
thermal: sysfs: Add a new sysfs node emul_temp for thermal emulation
PM: intel_powerclamp: off by one in start_power_clamp()
thermal: exynos: Miscellaneous fixes to support falling threshold interrupt
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The Armada 370 Reference Design board has one SD card slot, directly
connected to the SDIO IP of the SoC, so we enable this IP. there are no
GPIOs for card-detect and write-protect so we do not specify any.
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Tested-by: Andrew Lunn <andrew@lunn.ch>
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Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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Add a DT node for I2C and pinctrl hog for the pins. There appears to
be an i2c bus on topkick with a device on it:
i2cdetect 0
WARNING! This program can confuse your I2C bus, cause data loss and worse!
I will probe file /dev/i2c-0.
I will probe address range 0x03-0x77.
Continue? [Y/n] y
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- 64 -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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of_serial now has support for using clocks property and we have
a DT clock provider. This patch replaces the hard coded clock-frequency
property with a clocks phandle to tclk.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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This patch add support for the SPI flash MX25l25635E which is present
on the Armada 370 DB board. This flash stores the bootloader and its
environment.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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This patch add support for the SPI flash M25P64 which is present on
the Armada XP DB board. This flash stores the bootloader and its
environment.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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This patch adds an SPI master device node for Armada XP-GP board.
This master node is an SPI flash controller 'n25q128a13'.
Since there is no 'partitions' node declared, one full sized
partition named as the device will be created.
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Lior Amsalem <alior@marvell.com>
Tested-by: Gregory Clement <gregory.clement@free-electrons.com>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Acked-by: Gregory Clement <gregory.clement@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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The Armada 370 and Armada XP SoC has an SPI controller.
This patch adds support for this controller in Armada 370
and Armada XP SoC common device tree files.
Note that the Armada XP SPI register length is 0x50 bytes,
while Armada 370 SPI register length is 0x28 bytes,
so we choose the smaller of the two.
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Lior Amsalem <alior@marvell.com>
Acked-by: Gregory Clement <gregory.clement@free-electrons.com>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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Now that the time-armada-370-xp support local timers, updated the
device tree to take it into account.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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With DT support for orion-ehci also convert Dove to it and
remove the legacy calls and clock aliases.
This patch is based on "ARM: Dove: split legacy and DT setup"
applied to mvebu/boards recently.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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This patch activates every USB port provided by each SoC.
Except for Armada XP Openblocks AX3-4 board,
where we enable only the first two USB ports
until we have more information on the third one usage.
Cc: Lior Amsalem <alior@marvell.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>
Tested-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Tested-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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The Armada 370 and Armada XP SoC has an Orion EHCI USB controller.
This patch adds support for this controller in Armada 370
and Armada XP SoC common device tree files.
Cc: Lior Amsalem <alior@marvell.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Tested-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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The OpenBlocks AX3-4 board has one software-controlled button on the
front side, labeled "INIT", so we add minimal support for this button
in the kernel.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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Remove C code and add a Device Tree node in its place.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Simon Guinot <simon.guinot@sequanux.org>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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Add a sub-node into the I2C node to represent the adt7476 device.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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Remove the C code and add a Device Tree node for gpio-poweroff.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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