ARM: orion: always use MULTI_IRQ_HANDLER

As a preparation for multiplatform support, this enables
the MULTI_IRQ_HANDLER code unconditionally on dove and
orion5x, and introduces the respective code o

ARM: orion: always use MULTI_IRQ_HANDLER

As a preparation for multiplatform support, this enables
the MULTI_IRQ_HANDLER code unconditionally on dove and
orion5x, and introduces the respective code on mv78xx0,
which did not have it so far. The classic entry-macro.S
files are removed as they are now obsolete.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>

show more ...

ARM: orion: remove no longer needed DT IRQ code

Following the move of the Orion5x Device Tree support to use
irqchip_init() for the interrupt controller probing, the
plat-orion/irq.c code for DT-pro

ARM: orion: remove no longer needed DT IRQ code

Following the move of the Orion5x Device Tree support to use
irqchip_init() for the interrupt controller probing, the
plat-orion/irq.c code for DT-probing of the interrupt controller is no
longer necessary, so we can get rid of it.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Link: https://lkml.kernel.org/r/1398202002-28530-38-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

show more ...

ARM: orion: switch to a per-platform handle_irq() function

Moving to the Device Tree implies having CONFIG_MULTI_IRQ_HANDLER
enabled, even for non-DT platforms (if we want both DT and non-DT
platfor

ARM: orion: switch to a per-platform handle_irq() function

Moving to the Device Tree implies having CONFIG_MULTI_IRQ_HANDLER
enabled, even for non-DT platforms (if we want both DT and non-DT
platforms to be supported in a single kernel).

However, the common CONFIG_MULTI_IRQ_HANDLER handler for non-DT
platforms in plat-orion/irq.c doesn't match the needs of
Orion5x. Also, it doesn't make much sense for orion_irq_init() to
register the multi-IRQ handler: orion_irq_init() is called once for
each IRQ cause/mask tuple, while the multi-IRQ handler only needs to
be registered once.

To solve this problem, we move the multi-IRQ handle in per-platform
code: mach-kirkwood/irq.c and mach-dove/irq.c. The Orion5x variant
will be introduced in a followup commit. Of course, this code will
ultimately be completely removed once all boards are converted to the
Device Tree.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Link: https://lkml.kernel.org/r/1398202002-28530-23-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

show more ...

ARM: orion: provide C-style interrupt handler for MULTI_IRQ_HANDLER

DT-enabled Marvell Kirkwood and Dove SoCs make use of an irqchip
driver. As expected for irqchip drivers, it uses a C-style
interr

ARM: orion: provide C-style interrupt handler for MULTI_IRQ_HANDLER

DT-enabled Marvell Kirkwood and Dove SoCs make use of an irqchip
driver. As expected for irqchip drivers, it uses a C-style
interrupt handler and therefore selects MULTI_IRQ_HANDLER.

Now, compiling a kernel with both non-DT and DT support enabled,
selecting MULTI_IRQ_HANDLER will break ASM irq handler used by
non-DT boards.

Therefore, we provide a C-style irq handler even for non-DT boards,
if MULTI_IRQ_HANDLER is set. By installing the C-style irq handler
in orion_irq_init this is transparent to all non-DT board files.

While the regression report was filed on Marvell Kirkwood, also
Marvell Dove non-DT boards are affected and fixed by this patch.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Ian Campbell <ijc@hellion.org.uk>
Reported-by: Ian Campbell <ijc@hellion.org.uk>
Cc: <stable@vger.kernel.org> # v3.12+
Fixes: 2326f04321a9 ("ARM: kirkwood: convert to DT irqchip and clocksource")
Fixes: f07d73e33d0e ("ARM: dove: convert to DT irqchip and clocksource")
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

show more ...

ARM: plat-orion: add reg offset to DT irq driver stub

With irqchip driver for Orion SoCs, reg layout of orion-intc has changed.
This updates irq driver stub implemented before to the new reg layout

ARM: plat-orion: add reg offset to DT irq driver stub

With irqchip driver for Orion SoCs, reg layout of orion-intc has changed.
This updates irq driver stub implemented before to the new reg layout by
adding an offset to the base address passed by DT node. As orion5x still
uses this stub, it cannot be removed yet.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

show more ...

ARM: Kirkwood: Make use of mvebu pincltl and gpio drivers

Select the generic mvebu kirkwood pincltr driver and generic mvebu
gpio driver. This requires minor changes to the DT, and the calls to
conf

ARM: Kirkwood: Make use of mvebu pincltl and gpio drivers

Select the generic mvebu kirkwood pincltr driver and generic mvebu
gpio driver. This requires minor changes to the DT, and the calls to
configure plat-orion gpio driver are removed.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Michael Walle <michael@walle.cc>
Tested-by: Simon Baatz <gmbnomis@gmail.com>
Tested-by: Jamie Lentin <jm@lentin.co.uk>
Tested-by: Joshua Coombs <josh.coombs@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

show more ...

ARM: orion: move custom gpio functions to orion-gpio.h

Move custom orion platforms gpio code to orion-gpio to remove the
dependency on mach/gpio.h.

Signed-off-by: Rob Herring <rob.herring@calxeda.c

ARM: orion: move custom gpio functions to orion-gpio.h

Move custom orion platforms gpio code to orion-gpio to remove the
dependency on mach/gpio.h.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>

show more ...

ARM: Orion: DT support for IRQ and GPIO Controllers

Both IRQ and GPIO controllers can now be represented in DT. The IRQ
controllers are setup first, and then the GPIO controllers. Interrupts
for GP

ARM: Orion: DT support for IRQ and GPIO Controllers

Both IRQ and GPIO controllers can now be represented in DT. The IRQ
controllers are setup first, and then the GPIO controllers. Interrupts
for GPIO lines are placed directly after the main interrupts in the
interrupt space.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@googlemail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Josh Coombs <josh.coombs@gmail.com>
Tested-by: Simon Baatz <gmbnomis@gmail.com>

show more ...

arm: orion: Use generic irq chip

The core interrupt chip is a straight forward conversion. The gpio
chip is implemented with two instances of the irq_chip_type which can
be switched with the irq_set

arm: orion: Use generic irq chip

The core interrupt chip is a straight forward conversion. The gpio
chip is implemented with two instances of the irq_chip_type which can
be switched with the irq_set_type function. That allows us to use the
generic callbacks and avoids the conditionals in them.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Nicolas Pitre <nico@fluxnic.net>

show more ...

arm: Fold irq_set_chip/irq_set_handler

Use irq_set_chip_and_handler() instead. Converted with coccinelle.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

arm: Reorder irq_set_ function calls

Reorder
irq_set_chip()
irq_set_chip_data()
irq_set_handler()

to

irq_set_chip()
irq_set_handler()
irq_set_chip_data()

so the next patch can combine irq_set_ch

arm: Reorder irq_set_ function calls

Reorder
irq_set_chip()
irq_set_chip_data()
irq_set_handler()

to

irq_set_chip()
irq_set_handler()
irq_set_chip_data()

so the next patch can combine irq_set_chip() and irq_set_handler() to
irq_set_chip_and_handler().

Automated conversion with coccinelle.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

show more ...

arm: Cleanup the irq namespace

Convert to the new function names. Automated with coccinelle.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

arm: Cleanup irq_desc access

Use the proper wrappers and use the flow type in irq_data.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

ARM: plat-orion: irq_data conversion.

Signed-off-by: Lennert Buytenhek <buytenh@secretlab.ca>
Acked-by: Nicolas Pitre <nico@fluxnic.net>

[ARM] Move include/asm-arm/plat-orion to arch/arm/plat-orion/include/plat

This patch performs the equivalent include directory shuffle for
plat-orion, and fixes up all users.

Signed-off-by: Lennert

[ARM] Move include/asm-arm/plat-orion to arch/arm/plat-orion/include/plat

This patch performs the equivalent include directory shuffle for
plat-orion, and fixes up all users.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>

show more ...

[ARM] Orion: top-level IRQs are level-triggered

Make it clear that Orion top-level IRQs are level-triggered. This
means that we don't need an ->ack() handler, or at least, we don't
need the ->ack()

[ARM] Orion: top-level IRQs are level-triggered

Make it clear that Orion top-level IRQs are level-triggered. This
means that we don't need an ->ack() handler, or at least, we don't
need the ->ack() handler (or the acking part of the ->mask_ack()
handler) to actually do anything.

Given that, we might as well point our ->mask_ack() handler at the
->mask() handler instead of providing a dummy ->ack() handler, since
providing a ->mask_ack() handler on level IRQ sources will prevent
->ack() from ever being called.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Acked-by: Russell King <linux@arm.linux.org.uk>

show more ...

plat-orion: share IRQ handling code

Split off Orion IRQ handling code into plat-orion/, and add
support for multiple sets of (32) interrupts.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>

plat-orion: share IRQ handling code

Split off Orion IRQ handling code into plat-orion/, and add
support for multiple sets of (32) interrupts.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Reviewed-by: Tzachi Perelstein <tzachi@marvell.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Nicolas Pitre <nico@marvell.com>

show more ...

ARM: orion: always use MULTI_IRQ_HANDLER

As a preparation for multiplatform support, this enables
the MULTI_IRQ_HANDLER code unconditionally on dove and
orion5x, and introduces the r

ARM: orion: always use MULTI_IRQ_HANDLER

As a preparation for multiplatform support, this enables
the MULTI_IRQ_HANDLER code unconditionally on dove and
orion5x, and introduces the respective code on mv78xx0,
which did not have it so far. The classic entry-macro.S
files are removed as they are now obsolete.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>

show more ...

ARM: orion: remove no longer needed DT IRQ code

Following the move of the Orion5x Device Tree support to use
irqchip_init() for the interrupt controller probing, the
plat-orion/irq.c

ARM: orion: remove no longer needed DT IRQ code

Following the move of the Orion5x Device Tree support to use
irqchip_init() for the interrupt controller probing, the
plat-orion/irq.c code for DT-probing of the interrupt controller is no
longer necessary, so we can get rid of it.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Link: https://lkml.kernel.org/r/1398202002-28530-38-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

show more ...

ARM: orion: switch to a per-platform handle_irq() function

Moving to the Device Tree implies having CONFIG_MULTI_IRQ_HANDLER
enabled, even for non-DT platforms (if we want both DT and no

ARM: orion: switch to a per-platform handle_irq() function

Moving to the Device Tree implies having CONFIG_MULTI_IRQ_HANDLER
enabled, even for non-DT platforms (if we want both DT and non-DT
platforms to be supported in a single kernel).

However, the common CONFIG_MULTI_IRQ_HANDLER handler for non-DT
platforms in plat-orion/irq.c doesn't match the needs of
Orion5x. Also, it doesn't make much sense for orion_irq_init() to
register the multi-IRQ handler: orion_irq_init() is called once for
each IRQ cause/mask tuple, while the multi-IRQ handler only needs to
be registered once.

To solve this problem, we move the multi-IRQ handle in per-platform
code: mach-kirkwood/irq.c and mach-dove/irq.c. The Orion5x variant
will be introduced in a followup commit. Of course, this code will
ultimately be completely removed once all boards are converted to the
Device Tree.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Link: https://lkml.kernel.org/r/1398202002-28530-23-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

show more ...

ARM: orion: provide C-style interrupt handler for MULTI_IRQ_HANDLER

DT-enabled Marvell Kirkwood and Dove SoCs make use of an irqchip
driver. As expected for irqchip drivers, it uses a C-

ARM: orion: provide C-style interrupt handler for MULTI_IRQ_HANDLER

DT-enabled Marvell Kirkwood and Dove SoCs make use of an irqchip
driver. As expected for irqchip drivers, it uses a C-style
interrupt handler and therefore selects MULTI_IRQ_HANDLER.

Now, compiling a kernel with both non-DT and DT support enabled,
selecting MULTI_IRQ_HANDLER will break ASM irq handler used by
non-DT boards.

Therefore, we provide a C-style irq handler even for non-DT boards,
if MULTI_IRQ_HANDLER is set. By installing the C-style irq handler
in orion_irq_init this is transparent to all non-DT board files.

While the regression report was filed on Marvell Kirkwood, also
Marvell Dove non-DT boards are affected and fixed by this patch.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Ian Campbell <ijc@hellion.org.uk>
Reported-by: Ian Campbell <ijc@hellion.org.uk>
Cc: <stable@vger.kernel.org> # v3.12+
Fixes: 2326f04321a9 ("ARM: kirkwood: convert to DT irqchip and clocksource")
Fixes: f07d73e33d0e ("ARM: dove: convert to DT irqchip and clocksource")
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

show more ...

ARM: plat-orion: add reg offset to DT irq driver stub

With irqchip driver for Orion SoCs, reg layout of orion-intc has changed.
This updates irq driver stub implemented before to the new

ARM: plat-orion: add reg offset to DT irq driver stub

With irqchip driver for Orion SoCs, reg layout of orion-intc has changed.
This updates irq driver stub implemented before to the new reg layout by
adding an offset to the base address passed by DT node. As orion5x still
uses this stub, it cannot be removed yet.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

show more ...

ARM: Kirkwood: Make use of mvebu pincltl and gpio drivers

Select the generic mvebu kirkwood pincltr driver and generic mvebu
gpio driver. This requires minor changes to the DT, and the c

ARM: Kirkwood: Make use of mvebu pincltl and gpio drivers

Select the generic mvebu kirkwood pincltr driver and generic mvebu
gpio driver. This requires minor changes to the DT, and the calls to
configure plat-orion gpio driver are removed.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Michael Walle <michael@walle.cc>
Tested-by: Simon Baatz <gmbnomis@gmail.com>
Tested-by: Jamie Lentin <jm@lentin.co.uk>
Tested-by: Joshua Coombs <josh.coombs@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

show more ...

ARM: orion: move custom gpio functions to orion-gpio.h

Move custom orion platforms gpio code to orion-gpio to remove the
dependency on mach/gpio.h.

Signed-off-by: Rob Herring <r

ARM: orion: move custom gpio functions to orion-gpio.h

Move custom orion platforms gpio code to orion-gpio to remove the
dependency on mach/gpio.h.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>

show more ...

ARM: Orion: DT support for IRQ and GPIO Controllers

Both IRQ and GPIO controllers can now be represented in DT. The IRQ
controllers are setup first, and then the GPIO controllers. Inter

ARM: Orion: DT support for IRQ and GPIO Controllers

Both IRQ and GPIO controllers can now be represented in DT. The IRQ
controllers are setup first, and then the GPIO controllers. Interrupts
for GPIO lines are placed directly after the main interrupts in the
interrupt space.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@googlemail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Josh Coombs <josh.coombs@gmail.com>
Tested-by: Simon Baatz <gmbnomis@gmail.com>

show more ...