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into linaro-3.0
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This reverts commit c7e0c8535d73f8c5bf760926a2bd71c9840cf2ef, reversing
changes made to dfee09c8acf18e84fe197bb5d821d1e4e02d020f.
John Stultz reports that Panda doesn't boot anymore and 'git bisect'
indicated the merge commit itself as the culprit. The resulting kernel
log is:
[ 1.734802] OMAP DSS rev 4.0
[ 1.740417] omap_hwmod: dss_core: _wait_target_disable failed
[ 1.746429] omap_device: omapdss_dss.-1: new worst case deactivate latency 01
[ 1.755035] omapdss DISPC error: can't get dss_clk
[ 1.760101] omapdss_dispc: probe of omapdss_dispc failed with error -2
[ 1.767333] omapdss HDMI error: can't get hdmi_clk
[ 1.772399] omapdss_hdmi: probe of omapdss_hdmi failed with error -2
[ 1.780273] ------------[ cut here ]------------
[ 1.785125] WARNING: at drivers/video/omap2/dss/dispc.c:553dispc_runtime_ge)
[ 1.793640] Modules linked in:
[ 1.796905] ---[ end trace 6fcb132ac310d004 ]---
[ 1.801757] Unable to handle kernel NULL pointer dereference at virtualaddr0
[...]
Revert it so a later version of the arm-soc merge result can be used
instead.
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(Patch accepted by Russell for 3.1:
http://www.spinics.net/lists/arm-kernel/msg131273.html)
The affinity between ARM processors is defined in the MPIDR register.
We can identify which processors are in the same cluster,
and which ones have performance interdependency. We can define the
cpu topology of ARM platform, that is then used by sched_mc and sched_smt.
The default state of sched_mc and sched_smt config is disable.
When enabled, the behavior of the scheduler can be modified with
sched_mc_power_savings and sched_smt_power_savings sysfs interfaces.
Changes since v4 :
* Remove unnecessary parentheses and blank lines
Changes since v3 :
* Update the format of printk message
* Remove blank line
Changes since v2 :
* Update the commit message and some comments
Changes since v1 :
* Update the commit message
* Add read_cpuid_mpidr in arch/arm/include/asm/cputype.h
* Modify header of arch/arm/kernel/topology.c
* Modify tests and manipulation of MPIDR's bitfields
* Modify the place and dependancy of the config
* Modify Noop functions
Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Amit Kucheria <amit.kucheria@verdurent.com>
Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
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git+ssh://master.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc into for-next
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This was introduced more than 3 years ago, and since then only generic
janitorial changes were made without further addition of actual support
for "real" devices. This is therefore a cost with no benefits to keep
in the tree. If someone wishes to revive this code, it is always
possible to retrieve it from the Git repository.
Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
CC: Ke Wei <kewei@marvell.com>
CC: Saeed Bishara <saeed@marvell.com>
CC: Lennert Buytenhek <buytenh@wantstofly.org>
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On Tue, 28 Jun 2011, Ben Dooks wrote:
> On Tue, Jun 28, 2011 at 11:22:57PM +0200, Arnd Bergmann wrote:
>
> > On a related note, what about mach-s3c2400? It seems to be even more
> > incomplete.
>
> Probably the same fate awaits that. It is so old that there's little
> incentive to do anything with it.
So out it goes as well.
The PORT_S3C2400 definition in include/linux/serial_core.h is left there
to prevent a reuse of the same number for another port type.
Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
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Conflicts:
arch/arm/mach-davinci/include/mach/psc.h
arch/arm/mm/Kconfig
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Conflicts:
arch/arm/mach-omap2/cm-regbits-44xx.h
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git+ssh://master.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc into next/soc
Conflicts:
arch/arm/Kconfig
arch/arm/mm/Kconfig
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'lpc32xx/devel', 'pxa/devel', 'tegra/devel' and 'stericsson/master' of git+ssh://master.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc into next/devel
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Signed-off-by: Jon Medhurst <tixy@yxit.co.uk>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
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The barriers implemented in arch/arm/mach-tegra/mach/barriers.h
are exactly the same as the default barriers implemented in
arch/arm/include/asm/system.h. Remove barriers.h from Tegra,
and don't select ARCH_HAS_BARRIERS.
Signed-off-by: Colin Cross <ccross@android.com>
Acked-by: Olof Johansson <olof@lixom.net>
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Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
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Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
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clocksource support. This achieves several things:
1. It means we get rid of all these helper functions which frankly should
never have been necessary.
2. It means omap_readl() inside these helper functions does not appear in
ftrace output.
Another plus is that we avoid the overhead of calculating the address to
read each time, but a minus is that we use readl() which has a barrier.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[tony@atomide.com: updated to use ioremap]
Signed-off-by: Tony Lindgren <tony@atomide.com>
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SiRFprimaII is the latest generation application processor from CSR’s
Multifunction SoC product family. Designed around an ARM cortex A9 core,
high-speed memory bus, advanced 3D accelerator and full-HD multi-format
video decoder, SiRFprimaII is able to meet the needs of complicated
applications for modern multifunction devices that require heavy concurrent
applications and fluid user experience. Integrated with GPS baseband,
analog and PMU, this new platform is designed to provide a cost effective
solution for Automotive and Consumer markets.
This patch adds the basic support for this SoC and EVB board based on device
tree. It is following the ZYNQ of Xilinx in some degree.
Signed-off-by: Binghua Duan <Binghua.Duan@csr.com>
Signed-off-by: Rongjun Ying <Rongjun.Ying@csr.com>
Signed-off-by: Zhiwu Song <Zhiwu.Song@csr.com>
Signed-off-by: Yuping Luo <Yuping.Luo@csr.com>
Signed-off-by: Bin Shi <Bin.Shi@csr.com>
Signed-off-by: Huayi Li <Huayi.Li@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
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CNS3XXX is based on MPCore, so select the right CPU option for it.
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
Signed-off-by: Anton Vorontsov <avorontsov@mvista.com>
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The patch converts mxc tzic interrupt controller to use generic irq
chip.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Some old bootloaders can't be updated to a device tree capable one,
yet they provide ATAGs with memory configuration, the ramdisk address,
the kernel cmdline string, etc. To allow a device tree enabled
kernel to be used with such bootloaders, it is necessary to convert those
ATAGs into FDT properties and fold them into the DTB appended to zImage.
Currently the following ATAGs are converted:
ATAG_CMDLINE
ATAG_MEM (up to 8 memory regions)
ATAG_INITRD2
If the corresponding information already exists in the appended DTB, it
is replaced, otherwise the required node is created to hold it.
The code looks for ATAGs at the location pointed by the value of r2 upon
entry into the zImage code. If no ATAGs are found there, an attempt at
finding ATAGs at the typical 0x100 offset from start of RAM is made.
Otherwise the DTB is left unchanged.
Thisstarted from an older patch from John Bonesio <bones@secretlab.ca>,
with contributions from David Brown <davidb@codeaurora.org>.
Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
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The 1st board support is minimal to get a system up and running
on the Xilinx platform.
This platform reuses the clock implementation from plat-versatile, and
it depends entirely on CONFIG_OF support. There is only one board
support file which obtains all device information from a device tree
dtb file which is passed to the kernel at boot time.
Signed-off-by: John Linn <john.linn@xilinx.com>
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This patch provides the ability to boot using a device tree that is appended
to the raw binary zImage (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
Signed-off-by: John Bonesio <bones@secretlab.ca>
[nico: adjusted to latest zImage changes plus additional cleanups]
Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Tony Lindgren <tony@atomide.com>
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Hotplug support was added in 9f1890a (msm: hotplug: support cpu hotplug
on msm, 2010-12-02)
Signed-off-by: Jeff Ohlstein <johlstei@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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In commit eb33575c ("[ARM] Double check memmap is actually valid with a
memmap has unexpected holes V2"), a new function, memmap_valid_within,
was introduced to mmzone.h so that holes in the memmap which pass
pfn_valid in SPARSEMEM configurations can be detected and avoided.
The fix to this problem checks that the pfn <-> page linkages are
correct by calculating the page for the pfn and then checking that
page_to_pfn on that page returns the original pfn. Unfortunately, in
SPARSEMEM configurations, this results in reading from the page flags to
determine the correct section. Since the memmap here has been freed,
junk is read from memory and the check is no longer robust.
In the best case, reading from /proc/pagetypeinfo will give you the
wrong answer. In the worst case, you get SEGVs, Kernel OOPses and hung
CPUs. Furthermore, ioremap implementations that use pfn_valid to
disallow the remapping of normal memory will break.
This patch allows architectures to provide their own pfn_valid function
instead of using the default implementation used by sparsemem. The
architecture-specific version is aware of the memmap state and will
return false when passed a pfn for a freed page within a valid section.
Acked-by: Mel Gorman <mgorman@suse.de>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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devel-stable
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git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into devel-stable
Conflicts:
arch/arm/Kconfig
arch/arm/mach-exynos4/mach-nuri.c
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select ARM_PATCH_PHYS_VIRT
as with ARM_PATCH_PHYS_VIRT you can patch boot_params at runtime or any recent
bootloader will provide a valid atags pointer in r2
as point out by Russell on AT91 we never use XIP
so se do not need PLAT_PHYS_OFFSET
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Patrice Vilchez <patrice.vilchez@atmel.com>
Cc: Andrew Victor <linux@maxim.org.za>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
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we do not change the clock naming convention so does not need to switch
the AVR32 yet
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Patrice Vilchez <patrice.vilchez@atmel.com>
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into devel-stable
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Conflicts:
arch/arm/Kconfig
arch/arm/mach-ns9xxx/include/mach/uncompress.h
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and 'spear' into for-linus
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'consolidate-generic', 'consolidate-smp', 'consolidate-stmp' and 'consolidate-zones' into consolidate
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bcmring has a set of four sp804 timers incorporated, yet it has its
own copy of the sp804 code. Convert its clocksource implementation
to the standard sp804 support code.
Cc: Jiandong Zheng <jdzheng@broadcom.com>
Cc: Scott Branden <sbranden@broadcom.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Convert the MXS timrotv2 32-bit down counting clocksource to the
generic clocksource infrastructure.
Cc: Sascha Hauer <kernel@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Convert SPEAr platforms 16-bit up counting clocksource, which requires
a 16-bit register access read rather than 32-bit.
Acked-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Convert the W90x900 24-bit down-counting clocksource to the generic
mmio clocksource infrastructure
Acked-by: Wan ZongShun <mcuos.com@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Convert SP804, MXC, Nomadik and Orion 32-bit down-counting clocksources
to generic mmio clocksource infrastructure.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Alessandro Rubini <rubini@unipv.it>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Lennert Buytenhek <kernel@wantstofly.org>
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Convert ixp4xx, lpc32xx, mxc, netx, pxa, sa1100, tcc8k, tegra and u300
to use the generic mmio clocksource recently introduced.
Cc: Imre Kaloz <kaloz@openwrt.org>
Cc: Krzysztof Halasa <khc@pm.waw.pl>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Acked-by: "Hans J. Koch" <hjk@hansjkoch.de>
Acked-by: Colin Cross <ccross@android.com>
Cc: Erik Gilling <konkers@android.com>
Cc: Olof Johansson <olof@lixom.net>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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As a result of c42321c (genirq: Make generic irq chip depend on
CONFIG_GENERIC_IRQ_CHIP), we now need those platforms using this in
my tree to select this symbol.
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Acked-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The current mainline codes of ARCH_S5PC100 cannot support
suspend to ram. So needs this for preventing build error.
Cc: Russell King <rmk+kernel at arm.linux.org.uk>
Signed-off-by: Kukjin Kim <kgene.kim at samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This patch allows the provided CONFIG_CMDLINE to be concatenated
with the one provided by the boot loader. This is useful to
merge the static values defined in CONFIG_CMDLINE with the
boot loader's (possibly) more dynamic values, such as startup
reasons and more.
Signed-off-by: Victor Boivie <victor.boivie@sonyericsson.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@sonyericsson.com>
Signed-off-by: Oskar Andero <oskar.andero@sonyericsson.com>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Improve the Kconfig help texts for the phys-to-virt patching feature.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Highmem on ARM has been around for a while now, without any major issues
being raised. So, drop the experimental status of this feature.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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SMP on ARM has been around for a while now, without any major issues
being raised. So, drop the experimental status of this feature.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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Add some basic empty infrastructure for DT support on ARM.
v5: - Fix off-by-one error in size calculation of initrd
- Stop mucking with cmd_line, and load command line from dt into
boot_command_line instead which matches the behaviour of ATAGS booting
v3: - moved cmd_line export and initrd setup to this patch to make the
series bisectable.
- switched to alloc_bootmem_align() for allocation when
unflattening the device tree. memblock_alloc() was not the
right interface.
Signed-off-by: Jeremy Kerr <jeremy.kerr@canonical.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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Disabled legacy support for ARMv6 architecture on Dove platform.
Latest Dove HW uses only ARMv7 model.
Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
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Now that both users of plat-stmp have been deleted in previous patches,
delete the platform, too.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The port is actually unmaintained and only received global
cleanups and a few build fixes since mid 2008.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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