Remove EMEV2 early console code from KZM9D and instead
rely on console setup during regular platform device
probe time. This makes the DT code and the KZM9D board
support behave the same.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Acked-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Replace the SoC-specific callback init_machine() with
a NULL to use the default code. This cleans up the code
and reduces the number of lines.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Pass NULL to of_platform_populate instead of passing
an empty list. This cleans up the code and reduces the
number of lines.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Pass NULL to of_platform_populate instead of passing
an empty list. This cleans up the code and reduces the
number of lines.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Pass NULL to of_platform_populate instead of passing
an empty list. This cleans up the code and reduces the
number of lines.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Replace the SoC-specific callback init_machine() with
a NULL to use the default code. This cleans up the code
and reduces the number of lines.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Pass NULL to of_platform_populate instead of passing
an empty list. This cleans up the code and reduces the
number of lines.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Replace the SoC-specific callback init_machine() with
a NULL to use the default code. This cleans up the code
and reduces the number of lines.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Remove redundant irqchip_init() callback. The default case
of NULL will result in invoking irqchip_init() anyway.
Signed-off-by: NMagnus Damm <damm@opensource.se>
[ horms+renesas@verge.net.au: Trimmed patch to remove portion
  that updates the sh73a0 SoC and altered the subject to
  use the same format as the patch that updates the sh73a0. ]
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Commit ebafed7a ("ARM: irq: Call irqchip_init if no init_irq function is
specified") removed the need to explictly setup the init_irq field in
the machine description when using only irqchip_init. Remove that
declaration for shmobile as well.
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Remove redundant irqchip_init() callback. The default case
of NULL will result in invoking irqchip_init() anyway.
Signed-off-by: NMagnus Damm <damm@opensource.se>
[ horms+renesas@verge.net.au: Trimmed patch to remove portion
  that updates the r8a7790 SoC and altered the subject to
  use the same format as the patch that updates the r8a7790. ]
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Commit ebafed7a ("ARM: irq: Call irqchip_init if no init_irq function is
specified") removed the need to explictly setup the init_irq field in
the machine description when using only irqchip_init. Remove that
declaration for shmobile as well.
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Remove redundant irqchip_init() callback. The default case
of NULL will result in invoking irqchip_init() anyway.
Signed-off-by: NMagnus Damm <damm@opensource.se>
[ horms+renesas@verge.net.au: Trimmed patch to remove portion
  that updates the r8a73a4 SoC and altered the subject to
  use the same format as the patch that updates the r8a73a4. ]
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Commit ebafed7a ("ARM: irq: Call irqchip_init if no init_irq function is
specified") removed the need to explictly setup the init_irq field in
the machine description when using only irqchip_init. Remove that
declaration for shmobile as well.
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Commit ebafed7a ("ARM: irq: Call irqchip_init if no init_irq function is
specified") removed the need to explictly setup the init_irq field in
the machine description when using only irqchip_init. Remove that
declaration for shmobile as well.
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Use DEFINE_RES_MEM() and platform_device_register_simple()
to save a couple of lines of code.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
[ remove const from resource pfc_resources to avoid section miss-match
  reported by 4.4.5 ]
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

These data will be kmemdup()'ed on
platform_device_add_resources() and platform_device_add_data()
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NSimon Horman <horms@verge.net.au>

A comment and a #define in board-armadillo800eva.c have been left over
after recent changes and are no longer relevant or needed, remove them.
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

[suggested by Rasmus Villemoes] make O_DIRECTORY | O_RDWR part of O_TMPFILE;
that will fail on old kernels in a lot more cases than what I came up with.
And make sure O_CREAT doesn't get there...
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

OMAP recently changed how the platforms are configured, so OMAP2/3/4 SoC
support is no longer enabled by default. Add them back.

Enable new ethernet driver for sunxi.

The i.MX console options moved due to resorting, no functional change.
Signed-off-by: NOlof Johansson <olof@lixom.net>

- Add i.MX serial console support. This gives us the boot messages on
  UART on e.g. the i.MX6Q sabre sd platform.
- Add the necessary config options, to allow booting with NFS root on
  an i.MX6 sabre sd.
- Add Freescale LPUART serial console support. This gives us the boot
  messages on UART on e.g. the Vybrid VF610 Tower board.
Signed-off-by: NVincent Stehlé <vincent.stehle@freescale.com>
Cc: Russell King <linux@arm.linux.org.uk>
[olof: squashed three commits down to one]
Signed-off-by: NOlof Johansson <olof@lixom.net>

I completely botched understanding the calling conventions of
do_div().  I assumed that do_div() returned the result instead
of realizing that it modifies its argument and returns a
remainder.  The side-effect from this would be bogus numbers
for the "msecs" value in the warning messages:

	INFO: NMI handler (perf_event_nmi_handler) took too long to run: 0.114 msecs

Note, there was a second fix posted by Stephane Eranian for
a separate patch which I also botched:

	http://lkml.kernel.org/r/20130704223010.GA30625@quadSigned-off-by: NDave Hansen <dave.hansen@linux.intel.com>
Cc: Dave Hansen <dave@sr71.net>
Link: http://lkml.kernel.org/r/20130708214404.B0B6EA66@viggo.jf.intel.comSigned-off-by: NIngo Molnar <mingo@kernel.org>

The watchdog infrastructure in Dove is no different from that in
Orion5x or Kirkwood, so let's enable it for Dove.  The only things
missing are a few register settings in Dove's bridge-regs.h.

Rather than duplicating the same register bit masks for the RSTOUTn_MASK
and BRIDGE_CAUSE registers, move the definitions into the watchdog
driver itself.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Acked-by: NJason Cooper <jason@lakedaemon.net>
Tested-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

Interrupt request doesn't use the right API: The TWD watchdog uses a per-cpu
interrupt (usually interrupt #30), and the GIC configuration should flag it as
such. With this setup, request_irq() should fail, and the right API is
request_percpu_irq(), together with enable_percpu_irq()/disable_percpu_irq().

Nothing ensures the userspace ioctl() will end-up kicking the watchdog on the
right CPU.

There are no users of this driver since a long time and it makes more sense to
get rid of it as nobody is looking to fix it.

In case somebody wakes up after this has been removed and needs it, please
revert this driver and pick these updates (These were never pushed to mainline):

http://comments.gmane.org/gmane.linux.ports.arm.kernel/245998Signed-off-by: NViresh Kumar <viresh.kumar@linaro.org>
Acked-by: NGuenter Roeck <linux@roeck-us.net>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

Since all architectures have been converted to use vm_unmapped_area(),
there is no remaining use for the free_area_cache.
Signed-off-by: NMichel Lespinasse <walken@google.com>
Acked-by: NRik van Riel <riel@redhat.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Rename LL_SO to BUSY_POLL_SO
Rename sysctl_net_ll_{read,poll} to sysctl_busy_{read,poll}
Fix up users of these variables.
Fix documentation for sysctl.

a patch for the socket.7  man page will follow separately,
because of limitations of my mail setup.
Signed-off-by: NEliezer Tamir <eliezer.tamir@linux.intel.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Commit e4c6bfd2 ("mm: rearrange
vm_area_struct for fewer cache misses") changed the layout of the
vm_area_struct structure, it broke several SPARC32 assembly routines
which used numerical constants for accessing the vm_mm field.

This patch defines the VMA_VM_MM constant to replace the immediate values.
Signed-off-by: NOlivier DANET <odanet@caramail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Even if data snooping is enabled, without separate snoop tags snooping will not
work when the MMU is enabled.
Signed-off-by: NAndreas Larsson <andreas@gaisler.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

For the related next strcpy(), the destination length is less than 512,
but the source maximize length may be 'OPROMMAXPARAM' (4096) which is
more than 512.

One work flow may:
  openprom_sunos_ioctl() ->  if (cmd == OPROMSETOPT)
    getstrings() ->  will alloc buffer with size 'OPROMMAXPARAM'.
    opromsetopt() ->  devide the buffer into 'var' and 'value'
      of_set_property() -> pass
        prom_setprop() -> pass
          ldom_set_var()

And do not mind the additional 4 alignment buffer increasing, since
'sizeof(pkt) - sizeof(pkt.header)' is 4 alignment at least.
Signed-off-by: NChen Gang <gang.chen@asianux.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The reason is that other applications like strace
think that every __NR_xx is syscall.
Also __NR_syscalls is not used by user applications/libs.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

When the local timer freq changed, the twd_update_frequency function
should be run all the CPUs include itself, otherwise, the twd freq will
not get updated and the local timer will not run correcttly.

smp_call_function will run functions on all other CPUs, but not include
himself, this is not correct,use on_each_cpu instead to fix this issue.

Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: stable@vger.kernel.org
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Acked-by: NShawn Guo <shawn.guo@linaro.org>
Signed-off-by: NJason Liu <r64343@freescale.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

imx_v6_v7_defconfig handles both multi-core and single-core SoCs, and it has CONFIG_SMP=y selected by default.

With such config we cannot select ARM_ERRATA_364296, as it depends on !SMP.

Let ARM_ERRATA_364296 be undependent on CONFIG_SMP, so that we can select this erratum for the ARM1136 SoCs, even if CONFIG_SMP=y is enabled.
Reviewed-by: NDave Martin <Dave.Martin@arm.com>
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

When running the LTP testsuite one may hit this kernel BUG() with the
write06 testcase:

kernel BUG at mm/filemap.c:2023!
CPU: 1 PID: 8614 Comm: writev01 Not tainted 3.10.0-rc7-64bit-c3000+ #6
IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401e6e84 00000000401e6e88
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000001fbe0380820
 CPU:        1   CR30: 00000000bef80000 CR31: ffffffffffffffff
 ORIG_R28: 00000000bdc192c0
 IAOQ[0]: iov_iter_advance+0x3c/0xc0
 IAOQ[1]: iov_iter_advance+0x40/0xc0
 RP(r2): generic_file_buffered_write+0x204/0x3f0
Backtrace:
 [<00000000401e764c>] generic_file_buffered_write+0x204/0x3f0
 [<00000000401eab24>] __generic_file_aio_write+0x244/0x448
 [<00000000401eadc0>] generic_file_aio_write+0x98/0x150
 [<000000004024f460>] do_sync_readv_writev+0xc0/0x130
 [<000000004025037c>] compat_do_readv_writev+0x12c/0x340
 [<00000000402505f8>] compat_writev+0x68/0xa0
 [<0000000040251d88>] compat_SyS_writev+0x98/0xf8

Reason for this crash is a gcc miscompilation in the fault handlers of
pa_memcpy() which return the fault address instead of the copied bytes.
Since this seems to be a generic problem with gcc-4.7.x (and below), it's
better to simplify the fault handlers in pa_memcpy to avoid this problem.

Here is a simple reproducer for the problem:

int main(int argc, char **argv)
{
	int fd, nbytes;
	struct iovec wr_iovec[] = {
		{ "TEST STRING                     ",32},
		{ (char*)0x40005000,32} }; // random memory.
	fd = open(DATA_FILE, O_RDWR | O_CREAT, 0666);
	nbytes = writev(fd, wr_iovec, 2);
	printf("return value = %d, errno %d (%s)\n",
		nbytes, errno, strerror(errno));
	return 0;
}

In addition, John David Anglin wrote:
There is no gcc PR as pa_memcpy is not legitimate C code. There is an
implicit assumption that certain variables will contain correct values
when an exception occurs and the code randomly jumps to one of the
exception blocks.  There is no guarantee of this.  If a PR was filed, it
would likely be marked as invalid.
Signed-off-by: NHelge Deller <deller@gmx.de>
Signed-off-by: NJohn David Anglin <dave.anglin@bell.net>
Cc: <stable@vger.kernel.org> # 3.8+
Signed-off-by: NHelge Deller <deller@gmx.de>

I still see the occasional random segv on rp3440.  Looking at one of
these (a code 15), it appeared the problem must be with the cache
handling of anonymous pages.  Reviewing this, I noticed that the space
register %sr1 might be being clobbered when we flush an anonymous page.

Register %sr1 is used for TLB purges in a couple of places.  These
purges are needed on PA8800 and PA8900 processors to ensure cache
consistency of flushed cache lines.

The solution here is simply to move the %sr1 load into the TLB lock
region needed to ensure that one purge executes at a time on SMP
systems.  This was already the case for one use.  After a few days of
operation, I haven't had a random segv on my rp3440.
Signed-off-by: NJohn David Anglin <dave.anglin@bell.net>
Cc: <stable@vger.kernel.org> # 3.10
Signed-off-by: NHelge Deller <deller@gmx.de>

If the value which should be moved into a space register is zero, we can
optimize the inline assembly to become "mtsp %r0,%srX".
Signed-off-by: NHelge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org> # 3.10

The latest PA-RISC Boot Loader (palo) allows loading of gzip compressed
vmlinuz kernels. So let's now switch to build a vmlinuz file when we
build a palo boot image.

PALO version 1.9 (or higher) is required for this which is available at
git://git.kernel.org/pub/scm/linux/kernel/git/deller/palo.gitSigned-off-by: NHelge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org> # 3.10

Signed-off-by: NHelge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org> # 3.10

Integrates the LZ4 decompression code to the arm pre-boot code.
Signed-off-by: NKyungsik Lee <kyungsik.lee@lge.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Yann Collet <yann.collet.73@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Merge together the unicore32, arm, and x86 reboot= command line
parameter handling.
Signed-off-by: NRobin Holt <holt@sgi.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Russ Anderson <rja@sgi.com>
Cc: Robin Holt <holt@sgi.com>
Acked-by: NIngo Molnar <mingo@kernel.org>
Acked-by: NGuan Xuetao <gxt@mprc.pku.edu.cn>
Acked-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Preparing to move the parsing of reboot= to generic kernel code forces
the change in reboot_mode handling to use the enum.

[akpm@linux-foundation.org: fix arch/arm/mach-socfpga/socfpga.c]
Signed-off-by: NRobin Holt <holt@sgi.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Russ Anderson <rja@sgi.com>
Cc: Robin Holt <holt@sgi.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Acked-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>