Commit graph

29 commits

Author SHA1 Message Date
Nicolas Pitre
3b937a7dbd [ARM] Orion/Kirkwood: rename orion5x_wdt to orion_wdt
The Orion watchdog driver is also used on Kirkwood.

Convention is to use orion5x for stuff specific to 88F5xxx Orion chips
and simply "orion" for shared stuff across SoCs including Kirkwood.

Signed-off-by: Nicolas Pitre <nico@marvell.com>
2009-06-08 13:05:00 -04:00
Erik Benada
a88656553d [ARM] orion: convert gpio to use gpiolib
Signed-off-by: Erik Benada <erikbenada@yahoo.ca>

[ nico: fix locking, additional cleanups ]

Signed-off-by: Nicolas Pitre <nico@marvell.com>
2009-06-08 13:04:57 -04:00
Nicolas Pitre
a399e3fa79 [ARM] orion: make sure sched_clock() usage of cnt32_to_63() is safe
With a TCLK = 200MHz, the half period of the hardware timer is roughly
10 seconds. Because cnt32_to_63() must be called at least once per
half period of the base hardware counter, it is a bit risky to rely
solely on scheduling to generate frequent enough calls. Let's use a
kernel timer to ensure this.

Signed-off-by: Nicolas Pitre <nico@marvell.com>
2009-06-08 13:04:54 -04:00
Stefan Agner
8a3269fc21 [ARM] orion: sched_clock implementation for orion platforms
sched_clock implementation for orion platform. Its realized using
free-running clocksource timer, which provides a resolution of 7.5ns
(depending on tclk). It's derived from PXA's sched_clock implementation.

[ nico: renamed orion2ns to tclk2ns, fixed max value in the comment ]

Signed-off-by: Stefan Agner <stefan.agner@yahoo.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
2009-06-08 13:04:54 -04:00
Linus Torvalds
6ae85d6db4 Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] 5460/1: Orion: reduce namespace pollution
  [ARM] 5458/1: pcmcia: pxa2xx-sharpsl: check if we do have Scoop config
  [ARM] 5457/1: mach-imx gpio buildfix
  [ARM] 5456/1: add sys_preadv and sys_pwritev
  [ARM] pxa/pcm990: start external GPIOs immediately after built-in ones
  [ARM] pxa/palm27x: General fix for Palm27x aSoC driver
  [ARM] pxa/mioa701: use GPIO95 as AC97 reset line
  [ARM] pxa: merge AC97 platform data structures
  [ARM] pxa/magician: remove un-necessary #include of pxa-regs.h and hardware.h
2009-04-24 08:36:41 -07:00
Nicolas Pitre
fdd8b079e3 [ARM] 5460/1: Orion: reduce namespace pollution
Symbols like SOFT_RESET are way too generic to be exported at large.
To avoid this, let's move the mbus bridge register defines into a
separate file and include it where needed.  This affects mach-kirkwood,
mach-loki, mach-mv78xx0 and mach-orion5x simultaneously as they all
share code in plat-orion which relies on those defines.

Some other defines have been moved to narrower scopes, or simply deleted
when they had no user.

This fixes compilation problem with mpt2sas on the above listed
platforms.

Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-04-23 23:25:41 +01:00
Magnus Damm
8e19608e8b clocksource: pass clocksource to read() callback
Pass clocksource pointer to the read() callback for clocksources.  This
allows us to share the callback between multiple instances.

[hugh@veritas.com: fix powerpc build of clocksource pass clocksource mods]
[akpm@linux-foundation.org: cleanup]
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Acked-by: John Stultz <johnstul@us.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-21 13:41:47 -07:00
Russell King
ed40d0c472 Merge branch 'origin' into devel
Conflicts:
	sound/soc/pxa/pxa2xx-i2s.c
2009-03-28 20:29:51 +00:00
Thomas Reitmayr
9e058d4f57 [WATCHDOG] orion5x_wdt: fix compile issue by providing tclk as platform data
The orion5x-wdt driver is now registered as a platform device and
receives the tclk value as platform data. This fixes a compile issue
cause by a previously removed define "ORION5X_TCLK".

Signed-off-by: Thomas Reitmayr <treitmayr@devbase.at>
Acked-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Kristof Provost <kristof@sigsegv.be>
Cc: Lennert Buytenhek <buytenh@wantstofly.org>
Cc: Wim Van Sebroeck <wim@iguana.be>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Martin Michlmayr <tbm@cyrius.com>
Cc: Sylver Bruneau <sylver.bruneau@googlemail.com>
Cc: Kunihiko IMAI <bak@d2.dion.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2009-03-25 09:02:50 +00:00
Nicolas Pitre
8235ee009c [ARM] Kirkwood: SDIO driver registration for DB6281 and RD6281
Signed-off-by: Nicolas Pitre <nico@marvell.com>
2009-02-26 20:22:26 -05:00
Nicolas Pitre
28d27cf4ce [ARM] Orion: make gpio /input/output validation separate
Especially on Kirkwood, a couple GPIOs are actually only output capable.
Let's separate the ability to configure a GPIO as input or output to
accommodate this restriction.

Signed-off-by: Nicolas Pitre <nico@marvell.com>
2009-02-19 22:26:58 -05:00
Nicolas Pitre
fd4b9b3650 [ARM] 5401/1: Orion: fix edge triggered GPIO interrupt support
The GPIO interrupts can be configured as either level triggered or edge
triggered, with a default of level triggered.  When an edge triggered
interrupt is requested, the gpio_irq_set_type method is called which
currently switches the given IRQ descriptor between two struct irq_chip
instances: orion_gpio_irq_level_chip and orion_gpio_irq_edge_chip. This
happens via __setup_irq() which also calls irq_chip_set_defaults() to
assign default methods to uninitialized ones.  The problem is that
irq_chip_set_defaults() is called before the irq_chip reference is
switched, leaving the new irq_chip (orion_gpio_irq_edge_chip in this
case) with uninitialized methods such as chip->startup() causing a kernel
oops.

Many solutions are possible, such as making irq_chip_set_defaults() global
and calling it from gpio_irq_set_type(), or calling __irq_set_trigger()
before irq_chip_set_defaults() in __setup_irq().  But those require
modifications to the generic IRQ code which might have adverse effect on
other architectures, and that would still be a fragile arrangement.
Manually copying the missing methods from within gpio_irq_set_type()
would be really ugly and it would break again the day new methods with
automatic defaults are added.

A better solution is to have a single irq_chip instance which can deal
with both edge and level triggered interrupts.  It is also a good idea
to switch the IRQ handler instead, as the edge IRQ handler allows for
one edge IRQ event to be queued as the IRQ is actually masked only when
that second IRQ is received, at which point the hardware can queue an
additional IRQ event, making edge triggered interrupts a bit more
reliable.

Tested-by: Martin Michlmayr <tbm@cyrius.com>

Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-17 22:37:09 +00:00
Linus Torvalds
b840d79631 Merge branch 'cpus4096-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'cpus4096-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (66 commits)
  x86: export vector_used_by_percpu_irq
  x86: use logical apicid in x2apic_cluster's x2apic_cpu_mask_to_apicid_and()
  sched: nominate preferred wakeup cpu, fix
  x86: fix lguest used_vectors breakage, -v2
  x86: fix warning in arch/x86/kernel/io_apic.c
  sched: fix warning in kernel/sched.c
  sched: move test_sd_parent() to an SMP section of sched.h
  sched: add SD_BALANCE_NEWIDLE at MC and CPU level for sched_mc>0
  sched: activate active load balancing in new idle cpus
  sched: bias task wakeups to preferred semi-idle packages
  sched: nominate preferred wakeup cpu
  sched: favour lower logical cpu number for sched_mc balance
  sched: framework for sched_mc/smt_power_savings=N
  sched: convert BALANCE_FOR_xx_POWER to inline functions
  x86: use possible_cpus=NUM to extend the possible cpus allowed
  x86: fix cpu_mask_to_apicid_and to include cpu_online_mask
  x86: update io_apic.c to the new cpumask code
  x86: Introduce topology_core_cpumask()/topology_thread_cpumask()
  x86: xen: use smp_call_function_many()
  x86: use work_on_cpu in x86/kernel/cpu/mcheck/mce_amd_64.c
  ...

Fixed up trivial conflict in kernel/time/tick-sched.c manually
2009-01-02 11:44:09 -08:00
Lennert Buytenhek
07332318f3 [ARM] Orion: share GPIO IRQ handling code
Split off Orion GPIO IRQ handling code into plat-orion/.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
2008-12-20 12:24:05 -05:00
Lennert Buytenhek
9569dae75f [ARM] Orion: share GPIO handling code
Split off Orion GPIO handling code into plat-orion/, and add
support for multiple sets of (32) GPIO pins.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
2008-12-20 12:21:02 -05:00
Russell King
7e1548a597 Merge branch 'omap3-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 into devel 2008-12-15 22:13:26 +00:00
Rusty Russell
320ab2b0b1 cpumask: convert struct clock_event_device to cpumask pointers.
Impact: change calling convention of existing clock_event APIs

struct clock_event_timer's cpumask field gets changed to take pointer,
as does the ->broadcast function.

Another single-patch change.  For safety, we BUG_ON() in
clockevents_register_device() if it's not set.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Ingo Molnar <mingo@elte.hu>
2008-12-13 21:20:26 +10:30
Ronen Shitrit
fb6f552930 [ARM] Orion: add the option to support different ehci phy initialization
The Orion ehci driver serves the Orion, kirkwood and DD Soc families.
Since each of those integrate a different USB phy we should have the
ability to use few initialization sequences or to leave the boot loader
phy settings as is.

Signed-off-by: Ronen Shitrit <rshitrit@marvell.com>
2008-12-04 01:28:14 -05:00
Saeed Bishara
82676d7625 [ARM] Orion: fix bug in pcie configuration cycle function field mask
The function field is 3 bits.

Signed-off-by: Saeed Bishara <saeed@marvell.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
2008-12-02 16:53:26 -05:00
Lennert Buytenhek
6f088f1d21 [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>
2008-08-09 13:44:58 +02:00
Russell King
a09e64fbc0 [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach
This just leaves include/asm-arm/plat-* to deal with.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-07 09:55:48 +01:00
Lennert Buytenhek
a9311cfed2 [ARM] Orion: PCIe x4/x1 detection support
The Discovery Duo (MV78xx0) has two x4 PCIe ports which can either
be used in x4 mode or in quad x1 mode.  This patch adds an accessor
function to the generic plat-orion PCIe handling code to detect in
which of the two modes we're running (which is determined by strap
pins and/or configured by the bootloader).

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
2008-06-22 22:45:09 +02:00
Ke Wei
1219715de7 [ARM] Orion: add a separate BRIDGE_INT_TIMER1_CLR define
Some Feroceon-based SoCs have an MBUS bridge interrupt controller
that requires writing a one instead of a zero to clear edge
interrupt sources such as timer expiry.

This patch adds a new BRIDGE_INT_TIMER1_CLR define, which platform
code can set to either ~BRIDGE_INT_TIMER1 (write-zero-to-clear) or
BRIDGE_INT_TIMER1 (write-one-to-clear) depending on the platform.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
2008-06-22 22:45:01 +02:00
Lennert Buytenhek
000e99c333 [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>
2008-06-22 22:44:43 +02:00
Nicolas Pitre
b488a5ed12 [ARM] 4954/1: Orion: fix some function section mismatch
Without this, lspci won't work.

Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-04-10 15:27:09 +01:00
Lennert Buytenhek
2bac1de203 plat-orion: share time handling code
Split off Orion time handling code into plat-orion/.

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>
2008-03-27 14:51:40 -04:00
Lennert Buytenhek
abc0197d7a plat-orion: share PCIe handling code
Split off Orion PCIe handling code into plat-orion/.

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>
2008-03-27 14:51:40 -04:00
Lennert Buytenhek
01eb569823 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>
2008-03-27 14:51:40 -04:00
Lennert Buytenhek
69b02f6a96 plat-orion: introduce
Create arch/arm/plat-orion/, for peripherals shared between various
Marvell Orion SoCs.

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>
2008-03-27 14:51:39 -04:00