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  1. 12 7月, 2015 3 次提交
  3. 06 6月, 2015 1 次提交
  5. 25 4月, 2015 1 次提交
  7. 09 4月, 2015 1 次提交
  9. 26 3月, 2015 2 次提交
  11. 15 3月, 2015 3 次提交
  13. 08 3月, 2015 1 次提交
  15. 26 1月, 2015 1 次提交
  17. 26 11月, 2014 2 次提交
  19. 22 10月, 2014 1 次提交
    • L
      ARM: realview: basic device tree implementation · fa6e2eec
      由 Linus Walleij 提交于 
      This implements basic device tree boot support for the RealView
platforms, with a basic device tree for ARM PB1176 as an example.

The implementation is done with a new DT-specific board file
using only pre-existing bindings for the basic IRQ, timer and
serial port drivers. A new compatible type is added to the GIC
for the ARM1176.

This implementation uses the MFD syscon handle from day one to
access the system controller registers, and register the devices
using the SoC bus.

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Rob Herring <robh@kernel.org>
Acked-by: NJason Cooper <jason@lakedaemon.net>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
      fa6e2eec
  21. 19 9月, 2014 1 次提交
  23. 03 9月, 2014 2 次提交
  25. 27 8月, 2014 1 次提交
  27. 19 8月, 2014 2 次提交
  29. 18 7月, 2014 1 次提交
  31. 17 7月, 2014 1 次提交
  33. 09 7月, 2014 2 次提交
  35. 19 6月, 2014 1 次提交
  37. 19 5月, 2014 1 次提交
  39. 18 4月, 2014 1 次提交
  41. 12 3月, 2014 1 次提交
  43. 06 3月, 2014 1 次提交
  45. 26 2月, 2014 1 次提交
  47. 05 2月, 2014 1 次提交
    • S
      DRIVERS: IRQCHIP: IRQ-GIC: Add support for routable irqs · 006e983b
      由 Sricharan R 提交于 
      In some socs the gic can be preceded by a crossbar IP which
routes the peripheral interrupts to the gic inputs. The peripheral
interrupts are associated with a fixed crossbar input line and the
crossbar routes that to one of the free gic input line.

The DT entries for peripherals provides the fixed crossbar input line
as its interrupt number and the mapping code should associate this with
a free gic input line. This patch adds the support inside the gic irqchip
to handle such routable irqs. The routable irqs are registered in a linear
domain. The registered routable domain's callback should be implemented
to get a free irq and to configure the IP to route it.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Rajendra Nayak <rnayak@ti.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: NSricharan R <r.sricharan@ti.com>
Reviewed-by: NThomas Gleixner <tglx@linutronix.de>
Acked-by: NSantosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
      006e983b
  49. 28 11月, 2013 1 次提交
  51. 24 9月, 2013 2 次提交
  53. 29 8月, 2013 1 次提交
    • N
      drivers: irq-chip: irq-gic: introduce gic_cpu_if_down() · 10d9eb8a
      由 Nicolas Pitre 提交于 
      When processors are about to hit low power states, the assertion of
standbywfi signal, triggered by the wfi instruction, is essential to
entering low power modes. If an IRQ is pending on the processor at the
time wfi is issued, the wfi instruction completes and the processor
restarts execution without asserting the standbywfi signal. Depending
on the platform power controller HW this behaviour can be acceptable or
not; if this behaviour must be prevented software should be provided
with a way to disable the routing of interrupts to the core IRQ pins.

On systems where raw GIC distributor interrupts are connected to the power
controller as wake-up events (hence the power controller still senses
IRQs and can wake up cores upon IRQ pending), the GIC CPU interface can
be disabled on power down, so that the GIC CPU IF output is gated and wfi
cannot complete, thereby preventing the standbywfi issue.

This patch adds a simple function to the GIC driver that allows to
disable the GIC CPU IF from power down procedures.
Signed-off-by: NNicolas Pitre <nico@linaro.org>
Signed-off-by: NLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
[rewrote commit log]
Signed-off-by: NOlof Johansson <olof@lixom.net>
      10d9eb8a
  55. 30 7月, 2013 2 次提交
    • N
      ARM: bL_switcher: do not hardcode GIC IDs in the code · ed96762e
      由 Nicolas Pitre 提交于 
      Currently, GIC IDs are hardcoded making the code dependent on the 4+4 b.L
configuration.  Let's allow for GIC IDs to be discovered upon switcher
initialization to support other b.L configurations such as the 1+1 one,
or 2+3 as on the VExpress TC2.
Signed-off-by: NNicolas Pitre <nico@linaro.org>
      ed96762e
    • N
      ARM: gic: add CPU migration support · 1a6b69b6
      由 Nicolas Pitre 提交于 
      This is required by the big.LITTLE switcher code.

The gic_migrate_target() changes the CPU interface mapping for the
current CPU to redirect SGIs to the specified interface, and it also
updates the target CPU for each interrupts to that CPU interface
if they were targeting the current interface.  Finally, pending
SGIs for the current CPU are forwarded to the new interface.

Because Linux does not use it, the SGI source information for the
forwarded SGIs is not preserved.  Neither is the source information
for the SGIs sent by the current CPU to other CPUs adjusted to match
the new CPU interface mapping.  The required registers are banked so
only the target CPU could do it.
Signed-off-by: NNicolas Pitre <nico@linaro.org>
      1a6b69b6
  57. 15 7月, 2013 1 次提交
    • P
      clocksource+irqchip: delete __cpuinit usage from all related files · 8c37bb3a
      由 Paul Gortmaker 提交于 
      The __cpuinit type of throwaway sections might have made sense
some time ago when RAM was more constrained, but now the savings
do not offset the cost and complications.  For example, the fix in
commit 5e427ec2 ("x86: Fix bit corruption at CPU resume time")
is a good example of the nasty type of bugs that can be created
with improper use of the various __init prefixes.

After a discussion on LKML[1] it was decided that cpuinit should go
the way of devinit and be phased out.  Once all the users are gone,
we can then finally remove the macros themselves from linux/init.h.

This removes all the drivers/clocksource and drivers/irqchip uses of
the __cpuinit macros from all C files.

[1] https://lkml.org/lkml/2013/5/20/589

Cc: John Stultz <john.stultz@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Acked-by: NThomas Gleixner <tglx@linutronix.de>
Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>
      8c37bb3a