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: NAndrew Lunn <andrew@lunn.ch>
Tested-by: NMichael Walle <michael@walle.cc>
Tested-by: NSimon Baatz <gmbnomis@gmail.com>
Tested-by: NJamie Lentin <jm@lentin.co.uk>
Tested-by: NJoshua Coombs <josh.coombs@gmail.com>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

SolidRun CuBox has a led on a gpio pin. As there is now DT pinctrl
support for Dove, make use of a pinhog to ensure the pin is set to
gpio.
Signed-off-by: NSebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

Following the ongoing conversion of Orion SoCs to DT, make use of
gpio and pinctrl drivers through DT. The main dtsi for Dove is prepared
to allow board specific descriptors to make use of pinctrl muxing.
Signed-off-by: NSebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

Control the power to USB and HDD using a fixed regulator.
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Tested-by: NMichael Walle <michael@walle.cc>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

Control the power to USB using a fixed regulator.
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Tested-by: NJosh Coombs <josh.coombs@gmail.com>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

Control the power to USB using a fixed regulator.
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

Control the power to SATA0 and SATA1 using a fixed regulator.
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Tested-by: NJamie Lentin <jm@lentin.co.uk>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

A few boards use a GPIO line to enable power to subsystems, eg USB or
SATA devices. Pull in the regulator framework as the first step to
controlling these GPIO lines are regulators.
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Tested-by: NSimon Baatz <gmbnomis@gmail.com>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

Also enable the gpio-poweroff driver when DT is used.
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Tested-by: NJamie Lentin <jm@lentin.co.uk>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

The default chip-delay of 25us is a bit too tight for some DNS-320's,
and D-Link seem to specify 30us in their kernels for both devices.
Increase to 35us to make sure the NAND is stable.
Signed-off-by: NJamie Lentin <jm@lentin.co.uk>
Acked-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

Now that the EHCI driver has DT support, drop old style configuration
of it and add DT in its place. Since all the boards enable the EHCI,
enable it by default in kirkwood.dtsi. Any new boards which don't have
USB can specifically disable it.
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

Add support for Plat'Home OpenBlocks A6 using the device tree
where possible.
This commit supports SATA, USB, ether and serial console.
Signed-off-by: NNobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

It has been a while since dove_defconfig was updated to recent development.
This patch adds all currently available Dove boards, including a DT-enabled
machine.

DT support requires to allow ATAGS passed by boot loader as most of them are
not yet capable of passing DT blobs. Also OF_SERIAL is enabled to actually
see the bootlog.

Finally, sdhci driver for Dove, mv_cesa, GPIO LEDs, and highmem support is
added.
Signed-off-by: NSebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

MPLCEC4_DT is relocated because it had been added manually.
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

Signed-off-by: NThomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested by: Maxime Hadjinlian <mhadjinlian@lacie.com>
Acked-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

This commit converts the 'LaCie Ethernet Disk mini v2' board to the
Device Tree. All devices that have existing Device Tree bindings are
converted over to the Device Tree, the other devices remain
instantiated in the old way, until the respective drivers get the
needed Device Tree bindings.
Signed-off-by: NThomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested by: Maxime Hadjinlian <mhadjinlian@lacie.com>
Acked-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

This commit adds basic DT support for the Orion5x SoC family. It adds
an orion5x.dtsi description of the Orion5x SoC as well as the needed
DT_MACHINE structure to support boards converted to DT in the future.

So far, the Device Tree contains the interrupt controller, the GPIO
bank, the UART controllers, the SPI controller, the watchdog, the SATA
controller, the I2C controller and the cryptographic engine.
Signed-off-by: NThomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested by: Maxime Hadjinlian <mhadjinlian@lacie.com>
Acked-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

This commit is a simple mechanical update of the orion5x_defconfig
file to the current kernel (i.e, just 'make orion5x_defconfig; make
savedefconfig'). Doing this update allows to more easily separate
DT-related configuration changes in the following patches.
Signed-off-by: NThomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested by: Maxime Hadjinlian <mhadjinlian@lacie.com>
Acked-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

Signed-off-by: NStefan Peter <s.peter@mpl.ch>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

Hello, Andrew

> > +#define NSA310_GPIO_LED_ESATA_GREEN	12
> > <..>
> > +#define NSA310_GPIO_POWER_OFF		48
>
> It looks like most of these are not used. Please remove them.

True. Fixed.

> > +static struct mtd_partition nsa310_mtd_parts[] = {
> > +	{
> > +		.name	= "uboot",
> > +		.offset	= 0,
> > +		.size	= 0x100000,
> > +		.mask_flags = MTD_WRITEABLE,
> > +	}, {
> > <..>
> You should be able to put all that into DT. Take a look at

Correct. I did the conversion and tested that the partitions
can be read with dd and produce exactly the same data before and
after conversion. So, the partition offsets at least should be fine.

> > +static struct i2c_board_info __initdata nsa310_i2c_info[] = {
> > +	{ I2C_BOARD_INFO("adt7476", 0x2e) },
> > +};
>
> You can also do this in DT as well. kirkwood-ts219.dtsi has
>
>                 i2c@11000 {
>                         status = "okay";
>                         clock-frequency = <400000>;

Ok, I did convert the i2c definition to use the devicetree.
The adt7476 device itself is not at reach of device tree,
AFAIK and requires more work at there?

Thanks for your valuable comments. Following is a new patch that
should address the problems and mistakes you pointed and also
some of the pointed by Jason Cooper. The nand and i2c are now
defined at DT and I also removed the pointless defines and
ARM_APPENDED_DTB. It is based against the Linus' official
3.6 version.

Best regards,
Tero
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

This is a new kirkwood box made by Universal Scientific Industrial, Inc.
The product description is here:

http://www.usish.com/english/products_topkick1281p2.php

It is very similar to the dreamplug and other plug devices, with the
exception that it has room for a 2.5" SATA HDD internally.
Signed-off-by: NJason Cooper <jason@lakedaemon.net>
Acked-by: NAndrew Lunn <andrew@lunn.ch>
Tested-by: NSebastian Hesselbarth <sebastian.hesselbarth@gmail.com>

Remove board specific gpio-fan driver registration. Moved into device tree.
Signed-off-by: NMichael Walle <michael@walle.cc>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

Signed-off-by: NJason Cooper <jason@lakedaemon.net>

This patch adds DT board setup for the LaCie NAS Network Space Mini v2
(aka SafeBox). The hardware characteristics are very close to those of
the Network Space Lite v2. The main difference are:
- A GPIO fan which is only available on the NS2 Mini.
- A single USB host port is wired on the NS2 Mini. The NS2 Lite provides
  an additional dual-mode USB port (host/device).
Signed-off-by: NSimon Guinot <simon.guinot@sequanux.org>
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

This patch adds DT board setup for the LaCie NAS Network Space Lite v2.
This board is derived from the Network Space v2 and a lot of hardware
characteristics are shared.

- CPU: Marvell 88F6192 800Mhz
- SDRAM memory: 128MB DDR2 200Mhz
- 1 SATA port: internal
- Gigabit ethernet: PHY Marvell 88E1318
- Flash memory: SPI NOR 512KB (Macronix MX25L4005A)
- i2c EEPROM: 512 bytes (24C04 type)
- 2 USB2 ports: host and host/device
- 1 push button
- 1 SATA LED (bi-color, blue and red)

Note that the SATA LED is not compatible with the driver leds-ns2. The
LED behaviour ("on", "off" or "SATA activity blink") is controlled via
a single MPP (21).
Signed-off-by: NSimon Guinot <simon.guinot@sequanux.org>
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

This patch adds DT board setup for LaCie Network Space v2 and parents,
based on the Marvell Kirkwood 6281 SoC. This includes Network Space v2
(Max) and Internet Space v2.
Signed-off-by: NSimon Guinot <simon.guinot@sequanux.org>
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

mv64xxx_of_config requires that the tclk frequency be found
through the clk stuff rather than through device tree, so add
another override for the 2nd controller.
Signed-off-by: NJason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

Revert commit 7f1290f2 ("mm: fix-up zone present pages")

That patch tried to fix a issue when calculating zone->present_pages,
but it caused a regression on 32bit systems with HIGHMEM.  With that
change, reset_zone_present_pages() resets all zone->present_pages to
zero, and fixup_zone_present_pages() is called to recalculate
zone->present_pages when the boot allocator frees core memory pages into
buddy allocator.  Because highmem pages are not freed by bootmem
allocator, all highmem zones' present_pages becomes zero.

Various options for improving the situation are being discussed but for
now, let's return to the 3.6 code.

Cc: Jianguo Wu <wujianguo@huawei.com>
Cc: Jiang Liu <jiang.liu@huawei.com>
Cc: Petr Tesarik <ptesarik@suse.cz>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Minchan Kim <minchan.kim@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: NDavid Rientjes <rientjes@google.com>
Tested-by: NChris Clayton <chris2553@googlemail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Using a cross-compiler to fix another issue, the following build error
occurred for mips defconfig:

  arch/mips/fw/arc/misc.c: In function 'ArcHalt':
  arch/mips/fw/arc/misc.c:25:2: error: implicit declaration of function 'local_irq_disable'

Fix it up by including irqflags.h.
Signed-off-by: NDavid Rientjes <rientjes@google.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The commit [ad756a16: KVM: VMX: Implement PCID/INVPCID for guests with
EPT] introduced the unconditional access to SECONDARY_VM_EXEC_CONTROL,
and this triggers kernel warnings like below on old CPUs:

    vmwrite error: reg 401e value a0568000 (err 12)
    Pid: 13649, comm: qemu-kvm Not tainted 3.7.0-rc4-test2+ #154
    Call Trace:
     [<ffffffffa0558d86>] vmwrite_error+0x27/0x29 [kvm_intel]
     [<ffffffffa054e8cb>] vmcs_writel+0x1b/0x20 [kvm_intel]
     [<ffffffffa054f114>] vmx_cpuid_update+0x74/0x170 [kvm_intel]
     [<ffffffffa03629b6>] kvm_vcpu_ioctl_set_cpuid2+0x76/0x90 [kvm]
     [<ffffffffa0341c67>] kvm_arch_vcpu_ioctl+0xc37/0xed0 [kvm]
     [<ffffffff81143f7c>] ? __vunmap+0x9c/0x110
     [<ffffffffa0551489>] ? vmx_vcpu_load+0x39/0x1a0 [kvm_intel]
     [<ffffffffa0340ee2>] ? kvm_arch_vcpu_load+0x52/0x1a0 [kvm]
     [<ffffffffa032dcd4>] ? vcpu_load+0x74/0xd0 [kvm]
     [<ffffffffa032deb0>] kvm_vcpu_ioctl+0x110/0x5e0 [kvm]
     [<ffffffffa032e93d>] ? kvm_dev_ioctl+0x4d/0x4a0 [kvm]
     [<ffffffff8117dc6f>] do_vfs_ioctl+0x8f/0x530
     [<ffffffff81139d76>] ? remove_vma+0x56/0x60
     [<ffffffff8113b708>] ? do_munmap+0x328/0x400
     [<ffffffff81187c8c>] ? fget_light+0x4c/0x100
     [<ffffffff8117e1a1>] sys_ioctl+0x91/0xb0
     [<ffffffff815a942d>] system_call_fastpath+0x1a/0x1f

This patch adds a check for the availability of secondary exec
control to avoid these warnings.

Cc: <stable@vger.kernel.org> [v3.6+]
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>

On AArch64, the meaning of the XN bit has changed to UXN (user). The PXN
(privileged) bit must be set to prevent kernel execution. Without the
PXN bit set, the CPU may speculatively access device memory. This patch
ensures that all the mappings that the kernel must not execute from
(including user mappings) have the PXN bit set.
Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>

This patch sets HPM (Host power mask bit) to bit 16 according to i.MX
Reference Manual. Falsely it was set to bit 8, but this controls pull-up
Impedance.
Reported-by: NMichael Burkey <mdburkey@gmail.com>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: NChristoph Fritz <chf.fritz@googlemail.com>
Acked-by: NEric Bénard <eric@eukrea.com>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>

The error-valued pointer clk is used for the arg of kfree, it should be
kfree(gate) if clk_register() return ERR_PTR().

dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)
Signed-off-by: NWei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>

Use gpio_is_valid also for overcurrent pins (which are currently
negative in many board files).
Signed-off-by: NJohan Hovold <jhovold@gmail.com>
Acked-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>

Spare irq support introduced by commit 8fe82a55 (ARM: at91: sparse irq support)
involves to add the NR_IRQS_LEGACY offset to irq number.
Signed-off-by: NNicolas Royer <nicolas@eukrea.com>
Acked-by: NNicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: NEric Bénard <eric@eukrea.com>
Tested-by: NEric Bénard <eric@eukrea.com>
Cc: stable@vger.kernel.org # 3.6

The CBUS UART's interrupt number was wrong conflicting with the interrupt
being tied to the Intel PIIX4.  Since the PIIX4's interrupt is registered
before the CBUS UART which is not being used on most systems this would
not be noticed.

Attempts to open the ttyS2 CBUS UART would result in:

genirq: Flags mismatch irq 18. 00000000 (serial) vs. 00010000 (XT-PIC cascade)
serial_link_irq_chain: request failed: -16 for irq: 18

Qemu was written to match the kernel so will need to be fixed also.
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Select HAVE_ALIGNED_STRUCT_PAGE on s390, so that the slub allocator can make
use of compare and swap double for lockless updates. This increases the size
of struct page to 64 bytes (instead of 56 bytes), however the performance gain
justifies the increased size:

- now excactly four struct pages fit into a single cache line; the
  case that accessing a struct page causes two cache line loads
  does not exist anymore.
- calculating the offset of a struct page within the memmap array
  is only a simple shift instead of a more expensive multiplication.

A "hackbench 200 process 200" run on a 32 cpu system did show an 8% runtime
improvement.
Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

access_ok() returns always "true" on s390. Therefore all access_ok()
invocations are rather pointless.
However when walking page tables we need to make sure that everything
is within bounds of the ASCE limit of the task's address space.
So remove the access_ok() call and add the same check we have in
get_user_pages_fast().
Reviewed-by: NGerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

When walking page tables we need to make sure that everything
is within bounds of the ASCE limit of the task's address space.
Otherwise we might calculate e.g. a pud pointer which is not
within a pud and dereference it.
So check against TASK_SIZE (which is the ASCE limit) before
walking page tables.
Reviewed-by: NGerald Schaefer <gerald.schaefer@de.ibm.com>
Cc: stable@vger.kernel.org
Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>