Commit Graph

66 Commits

Author SHA1 Message Date
Russell King 7b9dd47136 Merge branch 'restart' into for-linus
Conflicts:
	arch/arm/mach-exynos/cpu.c

The changes to arch/arm/mach-exynos/cpu.c were moved to
mach-exynos/common.c.
2012-01-05 13:25:27 +00:00
Russell King f88b8979d2 ARM: restart: remove the now empty arch_reset()
Remove the now empty arch_reset() from all the mach/system.h includes,
and remove its callsite.  Remove arm_machine_restart() as this function
no longer does anything useful.

For samsung platforms, remove the include of mach/system-reset.h and
plat/system-reset.h from their respective mach/system.h headers as these
just define their arch_reset functions.  As a result, the s3c2410 and
plat-samsung system-reset.h files are no longer referenced, so remove
these files entirely.

Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Jamie Iles <jamie@jamieiles.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-01-05 12:57:22 +00:00
Russell King b95ff9fe24 ARM: restart: shark: use new restart hook
Hook the Shark restart code into the new restart hook rather than
using arch_reset().

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-01-05 12:57:20 +00:00
Russell King 73829af71f Merge branch 'vmalloc' of git://git.linaro.org/people/nico/linux into devel-stable 2011-12-05 23:27:59 +00:00
Nicolas Pitre d0e6b2236a ARM: big removal of now unused vmalloc.h files
Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
2011-11-26 19:21:29 -05:00
Russell King 6a6f1eface ARM: restart: remove local_irq_disable() from within arch_reset()
IRQs are already disabled by the time arch_reset() is called, so these
calls to local_irq_disable() instead arch_reset() are redundant.  Remove
them.

Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-17 17:09:30 +00:00
Linus Torvalds 1fdb24e969 Merge branch 'devel-stable' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm
* 'devel-stable' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm: (178 commits)
  ARM: 7139/1: fix compilation with CONFIG_ARM_ATAG_DTB_COMPAT and large TEXT_OFFSET
  ARM: gic, local timers: use the request_percpu_irq() interface
  ARM: gic: consolidate PPI handling
  ARM: switch from NO_MACH_MEMORY_H to NEED_MACH_MEMORY_H
  ARM: mach-s5p64x0: remove mach/memory.h
  ARM: mach-s3c64xx: remove mach/memory.h
  ARM: plat-mxc: remove mach/memory.h
  ARM: mach-prima2: remove mach/memory.h
  ARM: mach-zynq: remove mach/memory.h
  ARM: mach-bcmring: remove mach/memory.h
  ARM: mach-davinci: remove mach/memory.h
  ARM: mach-pxa: remove mach/memory.h
  ARM: mach-ixp4xx: remove mach/memory.h
  ARM: mach-h720x: remove mach/memory.h
  ARM: mach-vt8500: remove mach/memory.h
  ARM: mach-s5pc100: remove mach/memory.h
  ARM: mach-tegra: remove mach/memory.h
  ARM: plat-tcc: remove mach/memory.h
  ARM: mach-mmp: remove mach/memory.h
  ARM: mach-cns3xxx: remove mach/memory.h
  ...

Fix up mostly pretty trivial conflicts in:
 - arch/arm/Kconfig
 - arch/arm/include/asm/localtimer.h
 - arch/arm/kernel/Makefile
 - arch/arm/mach-shmobile/board-ap4evb.c
 - arch/arm/mach-u300/core.c
 - arch/arm/mm/dma-mapping.c
 - arch/arm/mm/proc-v7.S
 - arch/arm/plat-omap/Kconfig
largely due to some CONFIG option renaming (ie CONFIG_PM_SLEEP ->
CONFIG_ARM_CPU_SUSPEND for the arm-specific suspend code etc) and
addition of NEED_MACH_MEMORY_H next to HAVE_IDE.
2011-10-28 12:02:27 -07:00
Linus Torvalds 3cfef95246 Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits)
  rtmutex: Add missing rcu_read_unlock() in debug_rt_mutex_print_deadlock()
  lockdep: Comment all warnings
  lib: atomic64: Change the type of local lock to raw_spinlock_t
  locking, lib/atomic64: Annotate atomic64_lock::lock as raw
  locking, x86, iommu: Annotate qi->q_lock as raw
  locking, x86, iommu: Annotate irq_2_ir_lock as raw
  locking, x86, iommu: Annotate iommu->register_lock as raw
  locking, dma, ipu: Annotate bank_lock as raw
  locking, ARM: Annotate low level hw locks as raw
  locking, drivers/dca: Annotate dca_lock as raw
  locking, powerpc: Annotate uic->lock as raw
  locking, x86: mce: Annotate cmci_discover_lock as raw
  locking, ACPI: Annotate c3_lock as raw
  locking, oprofile: Annotate oprofilefs lock as raw
  locking, video: Annotate vga console lock as raw
  locking, latencytop: Annotate latency_lock as raw
  locking, timer_stats: Annotate table_lock as raw
  locking, rwsem: Annotate inner lock as raw
  locking, semaphores: Annotate inner lock as raw
  locking, sched: Annotate thread_group_cputimer as raw
  ...

Fix up conflicts in kernel/posix-cpu-timers.c manually: making
cputimer->cputime a raw lock conflicted with the ABBA fix in commit
bcd5cff721 ("cputimer: Cure lock inversion").
2011-10-26 16:17:32 +02:00
Sascha Hauer 40c6d8aee4 ARM: 7022/1: allow to detect conflicting zreladdrs
Boards used to specify zreladdr in their Makefile.boot with
zreladdr-y := x, so conflicting zreladdrs were silently overwritten.
This patch changes this to zreladdr-y += x, so that we end
up with multiple words in zreladdr in such a case. We can
detect this later and complain if necessary.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-10-17 09:12:40 +01:00
Nicolas Pitre 639da5ee37 ARM: add an extra temp register to the low level debugging addruart macro
Some platforms (like OMAP not to name it) are doing rather complicated
hacks just to determine the base UART address to use.  Let's give their
addruart macro some slack by providing an extra work register which will
allow for much needed cleanups.

This is basically a no-op as this commit is only adding the extra argument
to the macro but no one is using it yet.

Signed-off-by: nicolas Pitre <nicolas.pitre@linaro.org>
Reviewed-by: Kevin Hilman <khilman@ti.com>
2011-09-26 10:11:25 -04:00
Thomas Gleixner bd31b85960 locking, ARM: Annotate low level hw locks as raw
Annotate the low level hardware locks which must not be preempted.

In mainline this change documents the low level nature of
the lock - otherwise there's no functional difference. Lockdep
and Sparse checking will work as usual.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-09-13 11:12:14 +02:00
Nicolas Pitre 8322cd4bf1 ARM: mach-shark: convert boot_params to atag_offset
Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2011-08-21 17:15:14 -04:00
Linus Torvalds f85f19de90 Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
  PCI: remove printks about disabled bridge windows
  PCI: fold pci_calc_resource_flags() into decode_bar()
  PCI: treat mem BAR type "11" (reserved) as 32-bit, not 64-bit, BAR
  PCI: correct pcie_set_readrq write size
  PCI: pciehp: change wait time for valid configuration access
  x86/PCI: Preserve existing pci=bfsort whitelist for Dell systems
  PCI: ARI is a PCIe v2 feature
  x86/PCI: quirks: Use pci_dev->revision
  PCI: Make the struct pci_dev * argument of pci_fixup_irqs const.
  PCI hotplug: cpqphp: use pci_dev->vendor
  PCI hotplug: cpqphp: use pci_dev->subsystem_{vendor|device}
  x86/PCI: config space accessor functions should not ignore the segment argument
  PCI: Assign values to 'pci_obff_signal_type' enumeration constants
  x86/PCI: reduce severity of host bridge window conflict warnings
  PCI: enumerate the PCI device only removed out PCI hieratchy of OS when re-scanning PCI
  PCI: PCIe AER: add aer_recover_queue
  x86/PCI: select direct access mode for mmconfig option
  PCI hotplug: Rename is_ejectable which also exists in dock.c
2011-07-29 23:35:05 -07:00
Linus Torvalds 3960ef326a Merge branch 'next/cross-platform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc
* 'next/cross-platform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc:
  ARM: Consolidate the clkdev header files
  ARM: set vga memory base at run-time
  ARM: convert PCI defines to variables
  ARM: pci: make pcibios_assign_all_busses use pci_has_flag
  ARM: remove unnecessary mach/hardware.h includes
  pci: move microblaze and powerpc pci flag functions into asm-generic
  powerpc: rename ppc_pci_*_flags to pci_*_flags

Fix up conflicts in arch/microblaze/include/asm/pci-bridge.h
2011-07-26 17:12:10 -07:00
Russell King 3ad55155b2 Merge branch 'devel-stable' into for-next
Conflicts:
	arch/arm/kernel/entry-armv.S
2011-07-22 23:09:07 +01:00
Ralf Baechle d5341942d7 PCI: Make the struct pci_dev * argument of pci_fixup_irqs const.
Aside of the usual motivation for constification,  this function has a
history of being abused a hook for interrupt and other fixups so I turned
this function const ages ago in the MIPS code but it should be done
treewide.

Due to function pointer passing in varous places a few other functions
had to be constified as well.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
To: Anton Vorontsov <avorontsov@mvista.com>
To: Chris Metcalf <cmetcalf@tilera.com>
To: Colin Cross <ccross@android.com>
Acked-by: "David S. Miller" <davem@davemloft.net>
To: Eric Miao <eric.y.miao@gmail.com>
To: Erik Gilling <konkers@android.com>
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
To: "H. Peter Anvin" <hpa@zytor.com>
To: Imre Kaloz <kaloz@openwrt.org>
To: Ingo Molnar <mingo@redhat.com>
To: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
To: Jesse Barnes <jbarnes@virtuousgeek.org>
To: Krzysztof Halasa <khc@pm.waw.pl>
To: Lennert Buytenhek <kernel@wantstofly.org>
To: Matt Turner <mattst88@gmail.com>
To: Nicolas Pitre <nico@fluxnic.net>
To: Olof Johansson <olof@lixom.net>
Acked-by: Paul Mundt <lethal@linux-sh.org>
To: Richard Henderson <rth@twiddle.net>
To: Russell King <linux@arm.linux.org.uk>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-alpha@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-pci@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: linux-tegra@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Cc: x86@kernel.org
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-07-22 08:26:06 -07:00
Nicolas Pitre fded1ef9c5 ARM: mach-shark: move ARM_DMA_ZONE_SIZE to mdesc->dma_zone_size
Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
2011-07-18 15:30:04 -04:00
Rob Herring cc22b4c185 ARM: set vga memory base at run-time
Convert the incorrectly named PCIMEM_BASE to a variable called vga_base.
This removes the dependency on mach/hardware.h.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-07-12 11:19:29 -05:00
Rob Herring c9d95fbe59 ARM: convert PCI defines to variables
Convert PCIBIOS_MIN_IO and PCIBIOS_MIN_MEM to variables to allow
multi-platform builds. This also removes the requirement for a platform to
have a mach/hardware.h.

The default values for i/o and mem are 0x1000 and 0x01000000, respectively.
Per Arnd Bergmann, other values are likely to be incorrect, but this commit
does not try to address that issue.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-07-12 11:19:29 -05:00
Rob Herring dc8d966bcc ARM: pci: make pcibios_assign_all_busses use pci_has_flag
Convert pcibios_assign_all_busses from a define to inline so platforms can
control this setting.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-07-12 11:19:28 -05:00
Russell King 2342aa282b ARM: entry: shark: don't directly reference registers in macros
Directly referencing registers in macros makes assembly code harder
to change, because the macros have side effects which are non-obvious.
Use the provided 'base' register rather than directly referencing r4.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-06-28 10:34:58 +01:00
Russell King be20902ba6 ARM: use ARM_DMA_ZONE_SIZE to adjust the zone sizes
Rather than each platform providing its own function to adjust the
zone sizes, use the new ARM_DMA_ZONE_SIZE definition to perform this
adjustment.  This ensures that the actual DMA zone size and the
ISA_DMA_THRESHOLD/MAX_DMA_ADDRESS definitions are consistent with
each other, and moves this complexity out of the platform code.

Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-12 08:36:53 +01:00
Russell King 2fb3ec5c95 ARM: Replace platform definition of ISA_DMA_THRESHOLD/MAX_DMA_ADDRESS
The values of ISA_DMA_THRESHOLD and MAX_DMA_ADDRESS are related; one is
the physical/bus address, the other is the virtual address.  Both need
to be kept in step, so rather than having platforms define both, allow
them to define a single macro which sets both of these macros
appropraitely.

Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-12 08:36:49 +01:00
Thomas Gleixner f38c02f3b3 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>
2011-03-29 14:47:58 +02:00
Thomas Gleixner 6845664a6a arm: Cleanup the irq namespace
Convert to the new function names. Automated with coccinelle.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-29 14:47:57 +02:00
Russell King f4117ac9e2 ARM: P2V: separate PHYS_OFFSET from platform definitions
This uncouple PHYS_OFFSET from the platform definitions, thereby
facilitating run-time computation of the physical memory offset.

Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@st.com>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Magnus Damm <damm@opensource.se>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Wan ZongShun <mcuos.com@gmail.com>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Acked-by: Jiandong Zheng <jdzheng@broadcom.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-17 23:26:55 +00:00
Lennert Buytenhek aab0c637f3 ARM: shark: irq_data conversion.
Signed-off-by: Lennert Buytenhek <buytenh@secretlab.ca>
2011-01-13 17:19:00 +01:00
Anand Gadiyar 963fec4e0f ARM: 6484/1: fix compile warning in mm/init.c
Commit 7c63984b86 (ARM: do not define VMALLOC_END relative to PAGE_OFFSET)
changed VMALLOC_END to be an explicit value. Before this, it was
relative to PAGE_OFFSET and therefore converted to unsigned long
as PAGE_OFFSET is an unsigned long. This introduced the following
build warning. Fix this by changing the explicit defines of
VMALLOC_END to be unsigned long.

  CC      arch/arm/mm/init.o
arch/arm/mm/init.c: In function 'mem_init':
arch/arm/mm/init.c:606: warning: format '%08lx' expects type 'long unsigned int', but argument 12 has type 'unsigned int'

Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Acked-by: Uwe Kleine-K <u.kleine-koenig@pengutronix.dee>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-11-21 22:05:56 +00:00
Nicolas Pitre 6451d7783b arm: remove machine_desc.io_pg_offst and .phys_io
Since we're now using addruart to establish the debug mapping, we can
remove the io_pg_offst and phys_io members of struct machine_desc.

The various declarations were removed using the following script:

  grep -rl MACHINE_START arch/arm | xargs \
  sed -i '/MACHINE_START/,/MACHINE_END/ { /\.\(phys_io\|io_pg_offst\)/d }'

[ Initial patch was from Jeremy Kerr, example script from Russell King ]

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Acked-by: Eric Miao <eric.miao at canonical.com>
2010-10-20 00:27:46 -04:00
Jeremy Kerr 0ea1293009 arm: return both physical and virtual addresses from addruart
Rather than checking the MMU status in every instance of addruart, do it
once in kernel/debug.S, and change the existing addruart macros to
return both physical and virtual addresses. The main debug code can then
select the appropriate address to use.

This will also allow us to retreive the address of a uart for the MMU
state that we're not current in.

Updated with fixes for OMAP from Jason Wang <jason77.wang@gmail.com>
and Tony Lindgren <tony@atomide.com>, and fix for versatile express from
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>.

Signed-off-by: Jeremy Kerr <jeremy.kerr@canonical.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Jason Wang <jason77.wang@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Tested-by: Kevin Hilman <khilman@deeprootsystems.com>
2010-10-20 00:27:33 -04:00
Nicolas Pitre 7c63984b86 ARM: do not define VMALLOC_END relative to PAGE_OFFSET
VMALLOC_END is supposed to be an absolute value, while PAGE_OFFSET may
vary depending on the selected user:kernel memory split mode through
CONFIG_VMSPLIT_*.  In fact, the goal of moving PAGE_OFFSET down is to
accommodate more directly addressed RAM by the kernel below the vmalloc
area, and having VMALLOC_END move along PAGE_OFFSET is rather against
the very reason why PAGE_OFFSET can be moved in the first place.

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
2010-10-01 22:28:19 -04:00
Russell King b31fc7af78 Merge branches 'at91', 'ep93xx', 'kexec', 'iop', 'lmb', 'nomadik', 'nuc', 'pl', 'spear' and 'versatile' into devel 2010-07-31 14:19:35 +01:00
Jeremy Kerr 31e967daab ARM: 6261/1: arm/shark: fix debug macro compilation failure
We need a waituart macro.

Signed-off-by: Jeremy Kerr <jeremy.kerr@canonical.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-26 10:33:06 +01:00
Russell King b65b4781fb ARM: Remove 'node' argument form arch_adjust_zones()
Since we no longer support discontigmem, node is always zero, so
remove this argument.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-16 10:57:36 +01:00
Andrea Gelmini ff4659c1a7 ARM: arch/arm/mach-shark/pci.c: Checkpatch cleanup
arch/arm/mach-shark/pci.c:19: ERROR: trailing statements should be on next line
arch/arm/mach-shark/pci.c:20: ERROR: trailing statements should be on next line
arch/arm/mach-shark/pci.c:21: ERROR: trailing statements should be on next line
arch/arm/mach-shark/pci.c:24: WARNING: externs should be avoided in .c files
arch/arm/mach-shark/pci.c:28: WARNING: please, no space before tabs

Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-05-24 20:40:11 +01:00
Tony Lindgren 4e6d488af3 ARM: 5910/1: ARM: Add tmp register for addruart and loadsp
Otherwise more complicated uart configuration won't be possible.
We can use r1 for tmp register for both head.S and debug.S.

NOTE: This patch depends on another patch to add the the tmp register
into all debug-macro.S files. That can be done with:

$ sed -i -e "s/addruart,rx|addruart, rx/addruart, rx, tmp/"
	arch/arm/*/include/*/debug-macro.S

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-02-12 17:27:52 +00:00
Russell King be093beb60 [ARM] pass reboot command line to arch_reset()
OMAP wishes to pass state to the boot loader upon reboot in order to
instruct it whether to wait for USB-based reflashing or not.  There is
already a facility to do this via the reboot() syscall, except we ignore
the string passed to machine_restart().

This patch fixes things to pass this string to arch_reset().  This means
that we keep the reboot mode limited to telling the kernel _how_ to
perform the reboot which should be independent of what we request the
boot loader to do.

Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-03-19 16:20:24 +00:00
Russell King 22b61a11fd Merge branch 'dma' into devel
Conflicts:

	arch/arm/plat-mxc/dma-mx1-mx2.c
2009-02-21 21:42:50 +00:00
Alexander Schulz eab184c236 [ARM] 5363/1: Shark cleanup and new defconfig
This includes a new defconfig for the Shark and some changes to
the mach-shark directory to avoid namespace pollution and to
switch the rtc to the newer driver.

Signed-off-by: Alexander Schulz <alex@shark-linux.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-19 11:30:20 +00:00
Russell King 2f757f2ab7 [ARM] dma: rejig DMA initialization
Rather than having the central DMA multiplexer call the architecture
specific DMA initialization function, have each architecture DMA
initialization function use core_initcall(), and register each DMA
channel separately with the multiplexer.

This removes the array of dma structures in the central multiplexer,
replacing it with an array of pointers instead; this is more flexible
since it allows the drivers to wrap the DMA structure (eventually
allowing us to transition non-ISA DMA drivers away.)

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-12-11 14:32:43 +00:00
Russell King f40b121d98 [ARM] Rename ISA mach/dma.h header to mach/isa-dma.h
This avoids confusion with platform specific DMA implementations in
mach/dma.h

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-29 18:49:55 +00:00
Russell King c72e005b09 [ARM] fix constant values of MAX_DMA_ADDRESS
Since 8d5796d2ec, we have allowed
PAGE_OFFSET to be configurable, so a constant virtual address
for MAX_DMA_ADDRESS is buggy.  It should be defined in terms of
PAGE_OFFSET rather than a constant virtual address.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-29 18:42:34 +00:00
Russell King b9c78022b0 [ARM] move MAX_DMA_ADDRESS to mach/memory.h
Move the definition of MAX_DMA_ADDRESS from mach/dma.h to mach/memory.h,
thereby placing it along side its relative, ISA_DMA_THRESHOLD.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-29 10:50:22 +00:00
Russell King 47190a3350 [ARM] shark: avoid polluting the kernel's namespace
Avoid unnecessarily pollution of the kernel's namespace by avoiding
mach/hardware.h in mach/io.h.  Include this header file where necessary.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-28 22:08:13 +00:00
Russell King 514161b601 [ARM] shark: remove old unused "translated" IO macros
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-28 22:08:12 +00:00
Nicolas Pitre b5ee900258 [ARM] remove a common set of __virt_to_bus definitions
Let's provide an overridable default instead of having every machine
class define __virt_to_bus and __bus_to_virt to the same thing.  What
most platforms are using is bus_addr == phys_addr so such is the default.

One exception is ebsa110 which has no DMA what so ever, so the actual
definition is not important except only for proper compilation.  Also
added a comment about the special footbridge bus translation.

Let's also remove comments alluding to set_dma_addr which is not
(and should not) be commonly used.

Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-28 15:36:49 +00:00
Russell King fced80c735 [ARM] Convert asm/io.h to linux/io.h
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-06 12:10:45 +01:00
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
Russell King be50972935 [ARM] Remove asm/hardware.h, use asm/arch/hardware.h instead
Remove includes of asm/hardware.h in addition to asm/arch/hardware.h.
Then, since asm/hardware.h only exists to include asm/arch/hardware.h,
update everything to directly include asm/arch/hardware.h and remove
asm/hardware.h.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-07 09:40:08 +01:00
Russell King 193c3cc125 [ARM] Fix timer damage from d3d74453c3
Move the xtime write mode seqlock into timer_tick(), so it only
surrounds the call to do_timer().

This avoids a deadlock in update_process_times() ...
hrtimer_get_softirq_time() which tries to get a read mode seqlock
on xtime, thereby preventing booting.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-01-28 10:17:12 +00:00