1
Commit Graph

61 Commits

Author SHA1 Message Date
Christoph Hellwig
ae626eb973 ARM/dma-mapping: use dma-direct unconditionally
Use dma-direct unconditionally on arm.  It has already been used for
some time for LPAE and nommu configurations.

This mostly changes the streaming mapping implementation and the (simple)
coherent allocator for device that are DMA coherent.  The existing
complex allocator for uncached mappings for non-coherent devices is still
used as is using the arch_dma_alloc/arch_dma_free hooks.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Andre Przywara <andre.przywara@arm.com> [highbank]
Tested-by: Marc Zyngier <maz@kernel.org>
2022-07-07 18:18:57 +02:00
Christoph Hellwig
0a0f0d8be7 dma-mapping: split <linux/dma-mapping.h>
Split out all the bits that are purely for dma_map_ops implementations
and related code into a new <linux/dma-map-ops.h> header so that they
don't get pulled into all the drivers.  That also means the architecture
specific <asm/dma-mapping.h> is not pulled in by <linux/dma-mapping.h>
any more, which leads to a missing includes that were pulled in by the
x86 or arm versions in a few not overly portable drivers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-10-06 07:07:03 +02:00
Thomas Gleixner
9952f6918d treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms and conditions of the gnu general public license
  version 2 as published by the free software foundation this program
  is distributed in the hope it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details you should have received a copy of the gnu general
  public license along with this program if not see http www gnu org
  licenses

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 228 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190528171438.107155473@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:29:52 -07:00
Kefeng Wang
850bea2335 arm: Remove unnecessary of_platform_populate with default match table
After patch "of/platform: Add common method to populate default bus",
it is possible for arch code to remove unnecessary callers of
of_platform_populate with default match table.

Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Ray Jui <rjui@broadcom.com>
Cc: Lee Jones <lee@kernel.org>
Cc: Krzysztof Halasa <khalasa@piap.pl>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Santosh Shilimkar <ssantosh@kernel.org>
Cc: Roland Stigge <stigge@antcom.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Viresh Kumar <vireshk@kernel.org>
Cc: Shiraz Hashim <shiraz.linux.kernel@gmail.com>
Cc: Tony Prisk <linux@prisktech.co.nz>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2016-06-23 14:58:37 -05:00
Mark Rutland
be120397e7 ARM: migrate to common PSCI client code
Now that the common PSCI client code has been factored out to
drivers/firmware, and made safe for 32-bit use, move the 32-bit ARM code
over to it. This results in a moderate reduction of duplicated lines,
and will prevent further duplication as the PSCI client code is updated
for PSCI 1.0 and beyond.

The two legacy platform users of the PSCI invocation code are updated to
account for interface changes. In both cases the power state parameter
(which is constant) is now generated using macros, so that the
pack/unpack logic can be killed in preparation for PSCI 1.0 power state
changes.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Ashwin Chaugule <ashwin.chaugule@linaro.org>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2015-08-03 15:38:39 +01:00
Uwe Kleine-König
543c5040f5 ARM: make arrays containing machine compatible strings const
The definition

	static const char *axxia_dt_match[] __initconst = {
		...

defines a changable array of constant strings. That is you must not do:

	*axxia_dt_match[0] = 'k';

but

	axxia_dt_match[0] = "different string";

is fine. So the annotation __initconst is wrong and yields a compiler
error when other really const variables are added with __initconst.

As the struct machine_desc member dt_compat is declared as

	const char *const *dt_compat;

making the arrays const is the better alternative over changing all
annotations to __initdata.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-02-19 09:44:17 +01:00
Suman Anna
f2fc42b6ac mailbox: rename pl320-ipc specific mailbox.h
The patch 30058677 "ARM / highbank: add support for pl320 IPC"
added a pl320 IPC specific header file as a generic mailbox.h.
This file has been renamed appropriately to allow the
introduction of the generic mailbox API framework.

Acked-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Reviewed-by: Mark Brown <broonie@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2014-10-08 10:39:33 +05:30
Russell King
513b9a08f8 ARM: l2c: highbank: convert to generic l2c OF initialisation
Remove the explicit call to l2x0_of_init(), converting to the generic
infrastructure instead.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-05-30 00:49:21 +01:00
Russell King
e761f6f332 ARM: l2c: highbank: remove explicit SMI call in L2 cache initialisation
Now that highbank uses the write_sec method, we don't need to enable
the L2 cache in SoC specific code; this can be done via the normal
mechanisms in the L2C code.

Checking with Rob Herring:
> > Can we kill the "highbank_smc1(0x102, 0x1);" here?	That means
> > l2x0_of_init() will see the L2 cache disabled, and will try to enable
> > it via the write_sec hook, so it should do the right thing.
>
> Yes, that should work. You should be able to just call l2x0_of_init
> unconditionally. The condition was really to just avoid the smc on
> Midway which does get handled on h/w, but not if running virtualized.

So also drop the DT check too.  I'm leaving the config check in place
so that if L2 is disabled, the write_sec hook can be optimised away.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-05-30 00:49:18 +01:00
Russell King
0074fb2c9e ARM: l2c: highbank: implement new write_sec method
With the write_sec method, we no longer need to override the default L2C
disable method.  This can be handled via the write_sec method instead.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-05-30 00:49:17 +01:00
Russell King
d453ef752c ARM: l2c: remove unnecessary UL-suffix to mask values
They're u32, they're not unsigned long.  The UL suffix is not required
here.

Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-05-22 16:38:43 +01:00
Linus Torvalds
9826dbb1e9 Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
 "Another few fixes for ARM, nothing major here"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: 7938/1: OMAP4/highbank: Flush L2 cache before disabling
  ARM: 7939/1: traps: fix opcode endianness when read from user memory
  ARM: 7937/1: perf_event: Silence sparse warning
  ARM: 7934/1: DT/kernel: fix arch_match_cpu_phys_id to avoid erroneous match
  Revert "ARM: 7908/1: mm: Fix the arm_dma_limit calculation"
2014-01-16 08:26:00 +07:00
Taras Kondratiuk
b25f3e1c35 ARM: 7938/1: OMAP4/highbank: Flush L2 cache before disabling
Kexec disables outer cache before jumping to reboot code, but it doesn't
flush it explicitly. Flush is done implicitly inside of l2x0_disable().
But some SoC's override default .disable handler and don't flush cache.
This may lead to a corrupted memory during Kexec reboot on these
platforms.

This patch adds cache flush inside of OMAP4 and Highbank outer_cache.disable()
handlers to make it consistent with default l2x0_disable().

Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Taras Kondratiuk <taras.kondratiuk@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-01-12 14:15:27 +00:00
Rob Herring
3843114856 ARM: highbank: handle soft poweroff and reset key events
Graceful reboot and poweroff via IPMI commands to the management
processor don't work. Power and reset keys are events from the
management processor which are generated via IPC messages. Passing
the keys to userspace does not work as neither acpid nor a desktop
environment are present.

This adds a notifier handler for the IPC messages so the kernel can
handle the key events directly and IPMI graceful shutdown will work.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: stable@vger.kernel.org
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-12-04 09:28:50 -08:00
Olof Johansson
0fc869e8f2 Merge branch 'cleanup/dt-clock' into next/soc
Merging in dt clock cleanup as a pre-req with some of the later SoC branches.

There are a handful of conflicts here -- some of the already merged SoC
branches should have been based on the cleanup but weren't.

In particular, a remove/add of include on highbank and two remove/remove
conflicts on kirkwood were fixed up.

* cleanup/dt-clock: (28 commits)
  ARM: vt8500: remove custom .init_time hook
  ARM: vexpress: remove custom .init_time hook
  ARM: tegra: remove custom .init_time hook
  ARM: sunxi: remove custom .init_time hook
  ARM: sti: remove custom .init_time hook
  ARM: socfpga: remove custom .init_time hook
  ARM: rockchip: remove custom .init_time hook
  ARM: prima2: remove custom .init_time hook
  ARM: nspire: remove custom .init_time hook
  ARM: nomadik: remove custom .init_time hook
  ARM: mxs: remove custom .init_time hook
  ARM: kirkwood: remove custom .init_time hook
  ARM: imx: remove custom .init_time hook
  ARM: highbank: remove custom .init_time hook
  ARM: exynos: remove custom .init_time hook
  ARM: dove: remove custom .init_time hook
  ARM: bcm2835: remove custom .init_time hook
  ARM: bcm: provide common arch init for DT clocks
  ARM: call of_clk_init from default time_init handler
  ARM: vt8500: prepare for arch-wide .init_time callback
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-10-28 10:11:42 -07:00
Rob Herring
dd68eb02e4 ARM: highbank: adapt to use ARM PSCI calls
This adapts highbank to use psci for smp_ops and the cpu_suspend function
for suspend/resume.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2013-10-01 16:34:16 -05:00
Rob Herring
a410146c3e cpuidle: calxeda: add support to use PSCI calls
This updates the Calxeda cpuidle driver to use PSCI calls to powergate
cores. This also enables cpuidle for the ECX-2000.

This could possibly become a generic PSCI driver, but there are no other
PSCI users in the kernel other than mach-virt.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: linux-pm@vger.kernel.org
2013-10-01 16:30:56 -05:00
Daniel Lezcano
60a66e3700 ARM: highbank: cpuidle: convert to platform driver
As the ux500 and the kirkwood driver, make the calxeda driver a platform driver

[Compiled only]

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2013-10-01 16:30:20 -05:00
Sebastian Hesselbarth
26cae166cf ARM: highbank: remove custom .init_time hook
With arch/arm calling of_clk_init(NULL) from time_init(), we can now
remove custom .init_time hooks. Highbank clock provider need a reference
to system registers, as a workaround current clk driver maps those
independent of arch code now.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
2013-09-29 21:09:29 +02:00
Rob Herring
e7dc079608 ARM: highbank: clean-up some unused includes
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2013-08-27 07:51:43 -05:00
Rob Herring
a56a5cf1f2 ARM: highbank: avoid L2 cache smc calls when PL310 is not present
While Midway firmware handles L2 smc calls as nops, the custom smc calls
present a problem when running virtualized Midway guest. They aren't
needed so just avoid calling them.

In the process, cleanup the L2X0 ifdefs and use IS_ENABLED instead.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2013-08-22 20:48:42 -05:00
Rob Herring
a6a398341d ARM: highbank: enable DMA zone for LPAE
Some devices are restricted to 32-bit DMA. Thus the platform dma_zone_size
needs to be set. Otherwise dma-mapping code is complaining, e.g.

calxedaxgmac fff50000.ethernet: coherent DMA mask 0xffffffff is smaller
than system GFP_DMA mask 0xffffffffffffffff

Signed-off-by: Andreas Herrmann <andreas.herrmann@calxeda.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2013-08-17 19:43:56 -05:00
Rob Herring
e64bf95e68 ARM: highbank: Only touch common coherency control register fields
Midway adds new register fields to the coherency control registers, so
writing absolute values will break on Midway. Change the register
accesses to only modify the necessary and common fields in order to
support both Midway and Highbank.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-07-22 20:03:59 -07:00
Maxime Ripard
a8c7f580c6 ARM: highbank: remove the .map_io declaration
Now that the ARM core code calls debug_ll_io_init, we can remove it from
the machine_desc declaration.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2013-05-24 10:23:05 +02:00
Rob Herring
5993b3ee98 ARM: highbank: use OF init for sp804 timer
Remove the highbank specific setup for the sp804 timer now that
clocksource_of_init will do it.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2013-04-11 15:11:17 -05:00
Rob Herring
0583fe478a ARM: convert arm/arm64 arch timer to use CLKSRC_OF init
This converts arm and arm64 to use CLKSRC_OF DT based initialization for
the arch timer. A new function arch_timer_arch_init is added to allow for
arch specific setup.

This has a side effect of enabling sched_clock on omap5 and exynos5. There
should not be any reason not to use the arch timers for sched_clock.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Simon Horman <horms@verge.net.au>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-samsung-soc@vger.kernel.org
Cc: linux-omap@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2013-04-11 15:11:15 -05:00
Rob Herring
da4a686a2c ARM: smp_twd: convert to use CLKSRC_OF init
Now that we have OF based init with CLKSRC_OF, convert smp_twd init
function to use it and covert all callers of
twd_local_timer_of_register.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Viresh Kumar <viresh.linux@gmail.com>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: John Stultz <johnstul@us.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-omap@vger.kernel.org
Cc: spear-devel@list.st.com
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-11 08:42:08 -05:00
Linus Torvalds
b274776c54 arm-soc: cleanups
A large number of cleanups, all over the platforms. This is dominated
 largely by the Samsung platforms (s3c, s5p, exynos) and a few of the
 others moving code out of arch/arm into more appropriate subsystems.
 The clocksource and irqchip drivers are now abstracted to the point
 where platforms that are already cleaned up do not need to even specify
 the driver they use, it can all get configured from the device tree
 as we do for normal device drivers. The clocksource changes basically
 touch every single platform in the process.
 
 We further clean up the use of platform specific header files here,
 with the goal of turning more of the platforms over to being
 "multiplatform" enabled, which implies that they cannot expose
 their headers to architecture independent code any more.
 
 It is expected that no functional changes are part of the cleanup.
 The overall reduction in total code lines is mostly the result of
 removing broken and obsolete code.
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Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC cleanups from Arnd Bergmann:
 "A large number of cleanups, all over the platforms.  This is dominated
  largely by the Samsung platforms (s3c, s5p, exynos) and a few of the
  others moving code out of arch/arm into more appropriate subsystems.

  The clocksource and irqchip drivers are now abstracted to the point
  where platforms that are already cleaned up do not need to even
  specify the driver they use, it can all get configured from the device
  tree as we do for normal device drivers.  The clocksource changes
  basically touch every single platform in the process.

  We further clean up the use of platform specific header files here,
  with the goal of turning more of the platforms over to being
  "multiplatform" enabled, which implies that they cannot expose their
  headers to architecture independent code any more.

  It is expected that no functional changes are part of the cleanup.
  The overall reduction in total code lines is mostly the result of
  removing broken and obsolete code."

* tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (133 commits)
  ARM: mvebu: correct gated clock documentation
  ARM: kirkwood: add missing include for nsa310
  ARM: exynos: move exynos4210-combiner to drivers/irqchip
  mfd: db8500-prcmu: update resource passing
  drivers/db8500-cpufreq: delete dangling include
  ARM: at91: remove NEOCORE 926 board
  sunxi: Cleanup the reset code and add meaningful registers defines
  ARM: S3C24XX: header mach/regs-mem.h local
  ARM: S3C24XX: header mach/regs-power.h local
  ARM: S3C24XX: header mach/regs-s3c2412-mem.h local
  ARM: S3C24XX: Remove plat-s3c24xx directory in arch/arm/
  ARM: S3C24XX: transform s3c2443 subirqs into new structure
  ARM: S3C24XX: modify s3c2443 irq init to initialize all irqs
  ARM: S3C24XX: move s3c2443 irq code to irq.c
  ARM: S3C24XX: transform s3c2416 irqs into new structure
  ARM: S3C24XX: modify s3c2416 irq init to initialize all irqs
  ARM: S3C24XX: move s3c2416 irq init to common irq code
  ARM: S3C24XX: Modify s3c_irq_wake to use the hwirq property
  ARM: S3C24XX: Move irq syscore-ops to irq-pm
  clocksource: always define CLOCKSOURCE_OF_DECLARE
  ...
2013-02-21 14:58:40 -08:00
Linus Torvalds
10b6339e93 The common clock framework changes for 3.9 are almost entirely fixes.
None are dire enough to be Cc'd to stable which may be interpreted to
 mean that users of the framework are reaching stability.  Lots of new
 adoption of this framework is via DeviceTree data and that comes through
 the respective architecture and platform trees instead of through the
 clk framework tree.  Two new features are improved debugfs output and an
 improvement to how DT clocks are initialized by reusing a common method.
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Merge tag 'clk-for-linus' of git://git.linaro.org/people/mturquette/linux

Pull clock framework update from Michael Turquette:
 "The common clock framework changes for 3.9 are almost entirely fixes.

  None are dire enough to be Cc'd to stable which may be interpreted to
  mean that users of the framework are reaching stability.  Lots of new
  adoption of this framework is via DeviceTree data and that comes
  through the respective architecture and platform trees instead of
  through the clk framework tree.

  Two new features are improved debugfs output and an improvement to how
  DT clocks are initialized by reusing a common method."

* tag 'clk-for-linus' of git://git.linaro.org/people/mturquette/linux: (25 commits)
  clk: sunxi: remove stale Makefile entry
  clk: vexpress: Use common of_clk_init() function
  clk: zynq: Use common of_clk_init() function
  clk: vt8500: Use common of_clk_init() function
  clk: highbank: Use common of_clk_init() function
  clk: sunxi: Use common of_clk_init() function
  clk: add common of_clk_init() function
  clk: Deduplicate exit code in clk_set_rate
  clk: beautify Makefile
  clk-divider: fix macros
  clk: prima2: enable dt-binding clkdev mapping
  clk: mxs: Index is always positive
  clk: max77686: Avoid double free at remove time
  clk: remove exported function from __init section
  clk: vt8500: Add support for WM8750/WM8850 PLL clocks
  clk: vt8500: Fix division-by-0 when requested rate=0
  clk: vt8500: Fix device clock divisor calculations
  clk: vt8500: Fix error in PLL calculations on non-exact match.
  clk: max77686: Remove unnecessary NULL checking for container_of()
  clk: JSON debugfs clock tree summary
  ...
2013-02-20 11:02:10 -08:00
Rob Herring
63fc1370c1 ARM: highbank: mask cluster id from cpu_logical_map
With commit a0ae0240 (ARM: kernel: add device tree init map function),
the cpu id value may include the cluster id and is no longer 0-3, so we
need to mask it now to get the right hard cpu index.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2013-01-31 13:54:30 -06:00
Prashant Gaikwad
d34bcdeb43 clk: highbank: Use common of_clk_init() function
Use common of_clk_init() function for clocks initialization.

Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com>
Tested-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-01-24 11:12:46 -08:00
Olof Johansson
f8060f5446 Initial irqchip init infrastructure and GIC and VIC clean-ups
This creates irqchip initialization infrastructure from Thomas
 Petazzoni. The VIC and GIC irqchip code is moved to drivers/irqchips
 and adapted to use the new infrastructure. All DT enabled platforms
 using GIC and VIC are converted over to use the new irqchip_init.
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Merge tag 'gic-vic-to-irqchip' of git://sources.calxeda.com/kernel/linux into next/cleanup

From Rob Herring:

Initial irqchip init infrastructure and GIC and VIC clean-ups

This creates irqchip initialization infrastructure from Thomas
Petazzoni. The VIC and GIC irqchip code is moved to drivers/irqchips
and adapted to use the new infrastructure. All DT enabled platforms
using GIC and VIC are converted over to use the new irqchip_init.

* tag 'gic-vic-to-irqchip' of git://sources.calxeda.com/kernel/linux:
  irqchip: Move ARM vic.h to include/linux/irqchip/arm-vic.h
  ARM: picoxcell: use common irqchip_init function
  ARM: spear: use common irqchip_init function
  irqchip: Move ARM VIC to drivers/irqchip
  ARM: samsung: remove unused tick.h
  ARM: remove unneeded vic.h includes
  ARM: remove mach .handle_irq for VIC users
  ARM: VIC: set handle_arch_irq in VIC initialization
  ARM: VIC: shrink down vic.h
  irqchip: Move ARM gic.h to include/linux/irqchip/arm-gic.h
  ARM: use common irqchip_init for GIC init
  irqchip: Move ARM GIC to drivers/irqchip
  ARM: remove mach .handle_irq for GIC users
  ARM: GIC: set handle_arch_irq in GIC initialization
  ARM: GIC: remove direct use of gic_raise_softirq
  ARM: GIC: remove assembly ifdefs from gic.h
  ARM: mach-ux500: use SGI0 to wake up the other core
  arm: add set_handle_irq() to register the parent IRQ controller handler function
  irqchip: add basic infrastructure
  irqchip: add to the directories part of the IRQ subsystem in MAINTAINERS

Fixed up massive merge conflicts with the timer cleanup due to adjacent changes:

Signed-off-by: Olof Johansson <olof@lixom.net>

Conflicts:
	arch/arm/mach-bcm/board_bcm.c
	arch/arm/mach-cns3xxx/cns3420vb.c
	arch/arm/mach-ep93xx/adssphere.c
	arch/arm/mach-ep93xx/edb93xx.c
	arch/arm/mach-ep93xx/gesbc9312.c
	arch/arm/mach-ep93xx/micro9.c
	arch/arm/mach-ep93xx/simone.c
	arch/arm/mach-ep93xx/snappercl15.c
	arch/arm/mach-ep93xx/ts72xx.c
	arch/arm/mach-ep93xx/vision_ep9307.c
	arch/arm/mach-highbank/highbank.c
	arch/arm/mach-imx/mach-imx6q.c
	arch/arm/mach-msm/board-dt-8960.c
	arch/arm/mach-netx/nxdb500.c
	arch/arm/mach-netx/nxdkn.c
	arch/arm/mach-netx/nxeb500hmi.c
	arch/arm/mach-nomadik/board-nhk8815.c
	arch/arm/mach-picoxcell/common.c
	arch/arm/mach-realview/realview_eb.c
	arch/arm/mach-realview/realview_pb1176.c
	arch/arm/mach-realview/realview_pb11mp.c
	arch/arm/mach-realview/realview_pba8.c
	arch/arm/mach-realview/realview_pbx.c
	arch/arm/mach-socfpga/socfpga.c
	arch/arm/mach-spear13xx/spear1310.c
	arch/arm/mach-spear13xx/spear1340.c
	arch/arm/mach-spear13xx/spear13xx.c
	arch/arm/mach-spear3xx/spear300.c
	arch/arm/mach-spear3xx/spear310.c
	arch/arm/mach-spear3xx/spear320.c
	arch/arm/mach-spear3xx/spear3xx.c
	arch/arm/mach-spear6xx/spear6xx.c
	arch/arm/mach-tegra/board-dt-tegra20.c
	arch/arm/mach-tegra/board-dt-tegra30.c
	arch/arm/mach-u300/core.c
	arch/arm/mach-ux500/board-mop500.c
	arch/arm/mach-ux500/cpu-db8500.c
	arch/arm/mach-versatile/versatile_ab.c
	arch/arm/mach-versatile/versatile_dt.c
	arch/arm/mach-versatile/versatile_pb.c
	arch/arm/mach-vexpress/v2m.c
	include/asm-generic/vmlinux.lds.h
2013-01-14 19:55:03 -08:00
Olof Johansson
8d84981e39 Merge branch 'clocksource/cleanup' into next/cleanup
Clockevent cleanup series from Shawn Guo.

Resolved move/change conflict in mach-pxa/time.c due to the sys_timer
cleanup.

* clocksource/cleanup:
  clocksource: use clockevents_config_and_register() where possible
  ARM: use clockevents_config_and_register() where possible
  clockevents: export clockevents_config_and_register for module use
  + sync to Linux 3.8-rc3

Signed-off-by: Olof Johansson <olof@lixom.net>

Conflicts:
	arch/arm/mach-pxa/time.c
2013-01-14 10:20:02 -08:00
Rob Herring
0529e315bb ARM: use common irqchip_init for GIC init
Convert all GIC DT initialization over to use common irqchip_init
function.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: David Brown <davidb@codeaurora.org>
Cc: Daniel Walker <dwalker@fifo99.com>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Dinh Nguyen <dinguyen@altera.com>
Cc: Viresh Kumar <viresh.linux@gmail.com>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
2013-01-12 10:47:32 -06:00
Rob Herring
1d5cc604f4 ARM: remove mach .handle_irq for GIC users
Now that the GIC initialization sets up the handle_arch_irq pointer, we
can remove it for all machines and make it static.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Anton Vorontsov <avorontsov@mvista.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: David Brown <davidb@codeaurora.org>
Cc: Daniel Walker <dwalker@fifo99.com>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Dinh Nguyen <dinguyen@altera.com>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Olof Johansson <olof@lixom.net>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2013-01-12 10:47:20 -06:00
Rob Herring
c05ee88f6f ARM: highbank: fix typos with hignbank in power request functions
s/hignbank/highbank/

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-01-07 21:08:24 -08:00
Stephen Warren
6bb27d7349 ARM: delete struct sys_timer
Now that the only field in struct sys_timer is .init, delete the struct,
and replace the machine descriptor .timer field with the initialization
function itself.

This will enable moving timer drivers into drivers/clocksource without
having to place a public prototype of each struct sys_timer object into
include/linux; the intent is to create a single of_clocksource_init()
function that determines which timer driver to initialize by scanning
the device dtree, much like the proposed irqchip_init() at:
http://www.spinics.net/lists/arm-kernel/msg203686.html

Includes mach-omap2 fixes from Igor Grinberg.

Tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
2012-12-24 09:36:38 -07:00
Rob Herring
5253034333 ARM: highbank: use common debug_ll_io_init
Remove the platform static mapping code for uart and use the common
debug_ll_io_init function.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2012-11-07 18:00:24 -06:00
Rob Herring
e095c0d122 ARM: highbank: Add initial ECX-2000 support
And initial Calxeda ECX-2000 SOC support. This adds Cortex-A15 peripherals
and machine DT match name.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-10-31 13:47:01 -05:00
Rob Herring
7a2848d369 ARM: highbank: abstract out SCU usage
In preparation for A15 support on ECX-2000, the direct calls to SCU
registers must be conditional. The SCU power mode register is replaced by
a custom register on ECX-2000.

Rather than read the number of cores from the SCU, just hardcode it to 4.
This removes one use of SCU and removes the need for the SCU to be
statically mapped. The cpu initialization will ultimately come from DT.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-10-31 13:46:50 -05:00
Linus Torvalds
ca41cc96b2 Merge branch 'for-v3.7' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping
Pull CMA and DMA-mapping updates from Marek Szyprowski:
 "This time the pull request is rather small, because the further
  redesign patches were not ready on time.

  This pull request consists of the patches which extend ARM DMA-mapping
  subsystem with support for CPU coherent (ACP) DMA busses.  The first
  client of the new version is HighBank SATA driver.  The second part of
  the pull request includes various cleanup for both CMA common code and
  ARM DMA-mapping subsystem."

Fix up trivial add-add conflict due to the "dma-coherent" DT property
being added next to the "calxeda,port-phys" property for the Calxeda
AHCI controller.

* 'for-v3.7' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping:
  ARM: dma-mapping: Remove unsed var at arm_coherent_iommu_unmap_page
  ARM: highbank: add coherent DMA setup
  ARM: kill off arch_is_coherent
  ARM: add coherent iommu dma ops
  ARM: add coherent dma ops
  ARM: dma-mapping: Refrain noisy console message
  ARM: dma-mapping: Small logical clean up
  drivers: dma-contiguous: refactor dma_alloc_from_contiguous()
2012-10-02 19:13:12 -07:00
Rob Herring
1dc737c44a ARM: highbank: add coherent DMA setup
Some highbank DMA masters can support coherent (ACP) or non-coherent DMA.
This sets up dma_map_ops for masters which are configured for coherent DMA.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
2012-10-02 08:58:07 +02:00
Olof Johansson
25468fe89f Merge branch 'multiplatform/smp_ops' into next/multiplatform
* multiplatform/smp_ops:
  ARM: consolidate pen_release instead of having per platform definitions
  ARM: smp: Make SMP operations mandatory
  ARM: SoC: convert spear13xx to SMP operations
  ARM: SoC: convert imx6q to SMP operations
  ARM: SoC: convert highbank to SMP operations
  ARM: SoC: convert shmobile SMP to SMP operations
  ARM: SoC: convert ux500 to SMP operations
  ARM: SoC: convert MSM to SMP operations
  ARM: SoC: convert Exynos4 to SMP operations
  ARM: SoC: convert Tegra to SMP operations
  ARM: SoC: convert OMAP4 to SMP operations
  ARM: SoC: convert VExpress/RealView to SMP operations
  ARM: SoC: add per-platform SMP operations

Conflicts due to file moves or removals in:
	arch/arm/mach-msm/board-msm8960.c
	arch/arm/mach-msm/board-msm8x60.c
	arch/arm/mach-tegra/board-harmony.c
	arch/arm/mach-tegra/board-trimslice.c

Conflicts due to board file cleanup:
	arch/arm/mach-tegra/board-paz00.c

Conflicts due to cpu hotplug addition:
	arch/arm/mach-tegra/hotplug.c

Signed-off-by: Olof Johansson <olof@lixom.net>
2012-09-22 00:16:04 -07:00
Rob Herring
a283580c52 ARM: highbank: call highbank_pm_init from .init_machine
Being a module_init call, highbank_pm_init will cause problem with
multi-platform build running on other platforms.  Call it from
.init_machine instead.

Reported-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2012-09-20 22:58:17 -07:00
Marc Zyngier
7ad71b61e7 ARM: SoC: convert highbank to SMP operations
Convert the highbank platform to use struct smp_operations to provide
its SMP and CPU hotplug operations.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-09-14 11:14:59 +02:00
Rob Herring
8d4d9f5208 clk: add highbank clock support
This adds real clock support to Calxeda Highbank SOC using the common
clock infrastructure.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
[mturquette@linaro.org: fixed up invalid writes to const struct member]
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2012-07-11 17:58:47 -07:00
Rob Herring
8e56130dcb ARM: highbank: Add smc calls to enable/disable the L2
Linux runs in non-secure mode on highbank, so we need secure monitor calls
to enable and disable the PL310. Rather than invent new smc calls, the same
calling convention used by OMAP is used here.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2012-06-07 22:39:43 -07:00
Linus Torvalds
12679a2d7e Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm
Pull more ARM updates from Russell King.

This got a fair number of conflicts with the <asm/system.h> split, but
also with some other sparse-irq and header file include cleanups.  They
all looked pretty trivial, though.

* 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: (59 commits)
  ARM: fix Kconfig warning for HAVE_BPF_JIT
  ARM: 7361/1: provide XIP_VIRT_ADDR for no-MMU builds
  ARM: 7349/1: integrator: convert to sparse irqs
  ARM: 7259/3: net: JIT compiler for packet filters
  ARM: 7334/1: add jump label support
  ARM: 7333/2: jump label: detect %c support for ARM
  ARM: 7338/1: add support for early console output via semihosting
  ARM: use set_current_blocked() and block_sigmask()
  ARM: exec: remove redundant set_fs(USER_DS)
  ARM: 7332/1: extract out code patch function from kprobes
  ARM: 7331/1: extract out insn generation code from ftrace
  ARM: 7330/1: ftrace: use canonical Thumb-2 wide instruction format
  ARM: 7351/1: ftrace: remove useless memory checks
  ARM: 7316/1: kexec: EOI active and mask all interrupts in kexec crash path
  ARM: Versatile Express: add NO_IOPORT
  ARM: get rid of asm/irq.h in asm/prom.h
  ARM: 7319/1: Print debug info for SIGBUS in user faults
  ARM: 7318/1: gic: refactor irq_start assignment
  ARM: 7317/1: irq: avoid NULL check in for_each_irq_desc loop
  ARM: 7315/1: perf: add support for the Cortex-A7 PMU
  ...
2012-03-29 16:53:48 -07:00
Linus Torvalds
281b05392f ARM: SoC specific updates
These changes are all specific to an soc family or the code for
 one soc. Lots of work for Tegra3 this time, but also a lot of other
 platforms. There will be another (smaller) set of soc patches later in
 the merge window for stuff that has dependencies on external trees or
 that was sent just before the merge window opened.
 
 The asoc tree added a few devices to the i.mx platform, which conflict
 with other devices added in the same place here.
 
 The tegra Makefile conflicts between a number of branches, mostly because
 of changes regarding localtimer.c, which was removed in the end.
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull "ARM: SoC specific updates" from Arnd Bergmann:
 "These changes are all specific to an soc family or the code for one
  soc.  Lots of work for Tegra3 this time, but also a lot of other
  platforms.  There will be another (smaller) set of soc patches later
  in the merge window for stuff that has dependencies on external trees
  or that was sent just before the merge window opened.

  The asoc tree added a few devices to the i.mx platform, which conflict
  with other devices added in the same place here.

  The tegra Makefile conflicts between a number of branches, mostly
  because of changes regarding localtimer.c, which was removed in the
  end.

  Signed-off-by: Arnd Bergmann <arnd@arndb.de>"

Fix up some trivial conflicts, including the mentioned Tegra Makefile.

* tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (51 commits)
  ARM: EXYNOS: fix cycle count for periodic mode of clock event timers
  ARM: EXYNOS: add support JPEG
  ARM: EXYNOS: Add DMC1, allow PPMU access for DMC
  ARM: SAMSUNG: Correct MIPI-CSIS io memory resource definition
  ARM: SAMSUNG: fix __init attribute on regarding s3c_set_platdata()
  ARM: SAMSUNG: Add __init attribute to samsung_bl_set()
  ARM: S5PV210: Add usb otg phy control
  ARM: S3C64XX: Add usb otg phy control
  ARM: EXYNOS: Enable l2 configuration through device tree
  ARM: EXYNOS: remove useless code to save/restore L2
  ARM: EXYNOS: save L2 settings during bootup
  ARM: S5P: add L2 early resume code
  ARM: EXYNOS: Add support AFTR mode on EXYNOS4210
  ARM: mx35: Setup the AIPS registers
  ARM: mx5: Use common function for configuring AIPS
  ARM: mx3: Setup AIPS registers
  ARM: mx3: Let mx31 and mx35 enter in LPM mode in WFI
  ARM: defconfig: imx_v6_v7: build in REGULATOR_FIXED_VOLTAGE
  ARM: imx: update imx_v6_v7_defconfig
  ARM: tegra: Demote EMC clock inconsistency BUG to WARN
  ...
2012-03-27 16:14:44 -07:00
Marc Zyngier
7ac9b9eb33 ARM: highbank: convert to twd_local_timer_register() interface
Add support for the new smp_twd runtime registration interface
to the highbank platforms, and remove the old compile-time support.

The highbank DTS file is updated to match the TWD DT documentation
and fixes the timer trigger (rising edge).

Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2012-03-13 13:45:52 +00:00