90328 Commits

Author SHA1 Message Date
Enric Balletbo i Serra
0710b67986 ARM: dts: AM33XX BASE0033: add pinmux and hdmi node to enable display
Enable the hdmi output and the LCD Controller on IGEP AQUILA. Also
configure the correct pinmux for output of video data from the SoC
to the HDMI encoder.

Signed-off-by: Enric Balletbo i Serra <eballetbo@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-11-26 15:03:38 -08:00
Javier Martinez Canillas
50592dc30c ARM: dts: omap3-igep0020: Add pinmuxing for DVI output
The IGEPv2 has a TFP410 DPI-to-DVI encoder attached to OMAP's
Display SubSystem (DSS).

Add mux setup for DSS pins and also for the GPIO 170 pin that
is used to ensure that the DVI-D is powered down on power up.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-11-26 15:03:38 -08:00
Javier Martinez Canillas
d526daebfd ARM: dts: omap3-igep0020: Add pinmux setup for i2c devices
Add pin muxing support for IGEP boards i2c controllers.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-11-26 15:03:37 -08:00
Enric Balletbo i Serra
9aa36dfd3d ARM: dts: omap3-igep: Update to use the TI AM/DM37x processor
Most of the boards are using the TI AM/DM37x processor, there is only a small
quantity of IGEP Processor Boards based on TI OMAP3530. So it's better use the
omap36xx.dtsi include instead of omap34xx.dtsi include. We can add support
for the 34xx based variant later on as needed.

To avoid confusion we have added to the model the (TI AM/DM37x) comment.

Signed-off-by: Enric Balletbo i Serra <eballetbo@gmail.com>
[tony@atomide.com: updated comments for the 34xx to 36xx include change]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-11-26 15:03:37 -08:00
Enric Balletbo i Serra
0e9fd77771 ARM: dts: omap3-igep: Add support for LBEE1USJYC WiFi connected to SDIO
The LBEE1USJYC is a WiFi/BT combo module used on OMAP3-based IGEP boards. In
both cases, IGEPv2 Rev. C and IGEP COM MODULE, the module is connected using
the same MMC interface and uses the same GPIOs.

Signed-off-by: Enric Balletbo i Serra <eballetbo@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-11-26 15:03:37 -08:00
Enric Balletbo i Serra
8559133d82 ARM: dts: omap3-igep: Fix bus-width for mmc1
Both, IGEPv2 and IGEP COM MODULE have a bus-width of 4 not 8, so fix this and
do not mux data pins from mmc1_data4 to mmc1_data7.

Signed-off-by: Enric Balletbo i Serra <eballetbo@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-11-26 15:03:36 -08:00
Javier Martinez Canillas
11d3a7d6d4 ARM: OMAP2+: dss-common: change IGEP's DVI DDC i2c bus
IGEP's DVI connector's DDC pins are connected to OMAP's third i2c bus.

When booting with Device Trees the requested bus number is set to -1
which means that the bus number should be dynamically assigned. So the
third i2c bus has 2 has a bus number.

Since now only DT booting is supported for IGEP boards after commit
06ff74fd ("ARM: OMAP2+: remove legacy support for IGEP boards"), the
i2c bus number has to be changed.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-11-26 15:03:36 -08:00
Joel Fernandes
912e663127 ARM: OMAP2+: Disable POSTED mode for errata i103 and i767
Enabling of Posted mode is seen to cause problems on dmtimer modules on AM33xx
(much like other OMAPs).  Reference discussions on forums [1] [2]. Earlier
patch solving this on other OMAPs [3].

For OMAP SoCs with this errata, the fix has been to not enable Posted mode.
However, on some SoCs (atleast AM33xx) which carry this errata, Posted mode
is enabled on reset. So we not only need to ignore enabling of the POSTED bit
when the timer is requested, but also disable Posted mode if errata is present.

[1] http://e2e.ti.com/support/arm/sitara_arm/f/791/t/285744.aspx
[2] http://e2e.ti.com/support/arm/sitara_arm/f/791/t/270632.aspx
[3] http://www.spinics.net/lists/linux-omap/msg81770.html

Cc: stable@vgerk.kernel.org
Reported-by: Russ Dill <russ.dill@ti.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-11-26 15:03:36 -08:00
Olof Johansson
a32555249f Ux500 defconfig patches for the v3.13 rc series:
- Allow creation and mounting of devtmpfs, which is used
   by OpenEmbedded root filesystems among others.
 
 - Enable CPUidle for the ux500, it has been accidentally
   disabled due to a Kconfig change.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.15 (GNU/Linux)
 
 iQIcBAABAgAGBQJSlQKrAAoJEEEQszewGV1zzIgQALmlu94FjOqccrZmkhY5RB+B
 dzqrxU+8xvHRyBk7CDigChbJADwgXduc0wL7O3ucvY0uelsDDVwmMcsEQwDk07du
 +5g8ih/7Qw32s0H9tQa3YXmgkJp4Lu9k88JKuuauJ4HeWAXaEyK2FsFf2PapIRh8
 9IO8j4dubvGeM53eaBq14iK//qiqIgtLYVOE0YOFaqZ0IGuTfd0FJx7gFnu7sF/h
 yea3ZI3fE4J7cj31P13ZLzdC2HtQuEjyCt4jtLHoR9BKgvB728r61wcyPq1OhrSF
 otzHNZk15NaQmnOMxuEPlcfINNA39/kosZOniExx9MTGqaa2cH7d0ZCC9VL9e7Zf
 CaXlB0+6Hh3ljgJVXG7OGi7cznJYSXFNjiIHck5leEY2Gq31FAFbdk4BWgzMT6zl
 vDbsqFMNnLSGWNdG2mJ/9K6ktVverE/zrq9FC+xhg6iWX4pFhYckcHkY/Rep+SlU
 QjvzLRQsCxn+KrQpMIe2yKw8ncGcKoiVJnwR8dGWf7rwudVabMYHJosAEq4bT+S8
 HZqNxolEHyqdqfoiI6h7EMJC0zzHO8dyz5q2e1Vl1LBYDj5lPXPlkkEEOjjE9m0g
 Py9RTeH8+LAUvT/r/VFbuc+eqcajNGkz40RJ5k5e8CYVxJRuqPP1zrRaqibeckKu
 6g+kVZLFsB/uFlVo0cJ+
 =jJ0N
 -----END PGP SIGNATURE-----

Merge tag 'ux500-defconfig-v3.13-rcs' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into fixes

From Linus Walleij, Ux500 defconfig patches for the v3.13 rc series:

- Allow creation and mounting of devtmpfs, which is used
  by OpenEmbedded root filesystems among others.

- Enable CPUidle for the ux500, it has been accidentally
  disabled due to a Kconfig change.

* tag 'ux500-defconfig-v3.13-rcs' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson:
  ARM: ux500: u8500_defconfig: add missing cpuidle option
  u8500_defconfig: allow creation and mounting of devtmpfs
2013-11-26 12:42:08 -08:00
Olof Johansson
75cc4d470c Ux500 fixes for the v3.13 series:
- Restore platform data for the (e)MMC/SD controllers, so they can
   pins and special flags properly like before.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.15 (GNU/Linux)
 
 iQIcBAABAgAGBQJSlQBpAAoJEEEQszewGV1zU9EP/3NLDoDHDbHoh7nQ552hHXOQ
 ychbZ1GstNnmNM1hnF4Ll+PDkAN2fppBCWyyOpvx/gX2jDrXTOfLJBJ2JtfuqQQ5
 l0FNwZ9aBZxOaUP0h2CxVjPn20RGkFNfAycWV2HVzN4waMFkOl28SZZWha20Efry
 Hcjmz8U8ABWclp1zo0cBkJpe7JyjRDWghewgKqvR9J6vYYiuB1N66QjPWf8Na/UK
 TlhYzRXXuWE+/HRJsBoAuF2ZaXAXN7zsgb1HmCbXrRdwNA+eVhnrJ0dEjQdSIFrP
 UOHUthYFd0nqbKqAf0EP3WB02n34WESYt9VLwXEH/Xr4eWQL3iutLPw9ZXcT6K+9
 NBOKLAbL5aiS5dcvvMs8uWwOF22w+/2pVW2CmILoUpGHiMfT9IxHNvBp57OXiE57
 jSqZLeCOMViTg0fzfET02mp8ujg9UnjD017kxpYV8hq7XgXP/n4jhAtlQyTZwU1V
 uQ/zIaoK3o9r34PznpwXzCIbaKFaBIHgGYn5JzQQwx8r46ogyvdqyrQ7DQX7W2CG
 tBhZ5E5uPSn5az9hDyRkLmP9DKZRxDVe2TMDtITlL3Up2msYYCDr0Jbibg4zoxyT
 1VOMSNO3IkQoZNpBA9W56T19PElGE+0rhZeXug3lwsDW89uobYZr82Iug9YnaHMD
 I7kwJQ2vq5Nh2k+ceXgg
 =VO2C
 -----END PGP SIGNATURE-----

Merge tag 'ux500-fixes-v3.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into fixes

From Linus Walleij, Ux500 fixes for the v3.13 series:

- Restore platform data for the (e)MMC/SD controllers, so they can
  pins and special flags properly like before.

* tag 'ux500-fixes-v3.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson:
  Revert "ARM: ux500: Stop passing MMC's platform data for Device Tree boots"
  Revert "ARM: ux500: Remove AUXDATA relating to SDI (MMC) clock-name bindings"
2013-11-26 12:41:13 -08:00
Linus Walleij
5281973012 Revert "ARM: ux500: Stop passing MMC's platform data for Device Tree boots"
This reverts commit 49c129519a7a8840767321c38d2eaf84a263529b.

The special settings for the SD/MMC card parameters that are not
yet fully agreed upon how to encode into the device tree went missing
with this commit. We need to first put it into the device tree,
and then remove the platform data.

Cc: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-11-26 21:02:20 +01:00
Linus Walleij
1f202dea74 Revert "ARM: ux500: Remove AUXDATA relating to SDI (MMC) clock-name bindings"
This reverts commit ce16feb8510cbbcd090c2320c35db2fbbffde210.

This commit stopped tying down the name of the MMC/SD devices, but these
names are used in the pin control table, so the MMC/SD cards stopped
working.

Cc: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-11-26 21:02:20 +01:00
Daniel Lezcano
59b023e9bf ARM: ux500: u8500_defconfig: add missing cpuidle option
With the commit d3f2950f2adeea3da0317e952914b59adaa4cdb3, the option
ARM_U8500_CPUIDLE was added to the Kconfig but not reflected in the
default config file, hence the cpuidle driver is no longer enabled
since this commit.

Enable it again by adding the missing option in the default config file.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-11-26 21:01:40 +01:00
Andi Shyti
a09b5add6f u8500_defconfig: allow creation and mounting of devtmpfs
This patch enables CONFIG_DETTMPFS and CONFIG_DEVTMPFS_MOUNT
flags for u8500 based devices.

In this way it's possible to create a tmpfs/ramfs already in the
early stages of the boot, allowing programs like udev/mdev to
populate the /dev directory.

Signed-off-by: Andi Shyti <andi@etezian.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-11-26 21:01:39 +01:00
Linus Torvalds
0e4b0743bb ARM: SoC fixes for 3.13-rc
Mostly bugfixes and a few small code removals. Worth pointing out is:
 
 - A handful of more fixes to get DT enablement working properly on OMAP,
   finding new breakage of things that don't work quite right yet without
   the traditional board files. I expect a bit more of this to come in this
   release as people test on their hardware.
 - Implementation of power_down_finish() on vexpress, to make kexec work and
   to stop the MCPM core to produce a warning (the warning was new to 3.13-rc1).
 - A handful of minor fixes for various platforms.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJSlPDhAAoJEIwa5zzehBx31dkP/RyP/esMHSBO5k36eB5V35HP
 /XcexbgnnH4tDVIKl28qH4/AjkT+09uNZ/QQpbshwmEHw1X5i+Dz455suBCdP0T7
 D+dHy/YCMDuMD7ow0OXWyyL9XbILV5VuBUogrdMN/RhzW2gIvIJRuHztKBQcU8sw
 L94OIPjlKX/YFrswuy0LXiIZt2Y2k3zFVFCwcxIpTB4F1avYj7luZjSX6y469TEB
 JyqfO+hooU/qtuc1pKTnBzKxVI7IVae3bberDhZCCKsAxP1/c5rSMy+nf60rqB4O
 nkT09sAr1SBVp6kB4Ql2yHGiZ5ozxSJbMQpx1v73wnS09wL9RXwR1GZPrNcDW90l
 qwergTrBxhYdzWyNAf/87DmQhB+Xf7kGqtUuRHleuuFhBOU29qR8oXQ6WMRkzHn9
 ZTSRZ99l5a3Aul8w+sEWzOKDdZfhycMsBNzWH8xpzR1fgH4N9GRJlSlqkWdrVGca
 QBNiC5bmtPpMgAHSkqK0Zu3rog83NX9NxcXG15FVEah7J4Q/VT/x51AIh0uSRBf0
 35lY86R79SQ3FYYyHhl2pyAw8nhY2EmofGSG2WJ+qfZ9TgDSDFdwA0hz2fp9nwFc
 Lwb3zGUEyGwgJ4I/n/cDGBfY2CsJuTEcDtB4sW1Vw4GrzMQvc43SWly6e5+RSAgq
 reP23wcD4/YKev7//zzI
 =zdhe
 -----END PGP SIGNATURE-----

Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "Mostly bugfixes and a few small code removals.  Worth pointing out is:

   - A handful of more fixes to get DT enablement working properly on
     OMAP, finding new breakage of things that don't work quite right
     yet without the traditional board files.  I expect a bit more of
     this to come in this release as people test on their hardware.
   - Implementation of power_down_finish() on vexpress, to make kexec
     work and to stop the MCPM core to produce a warning (the warning
     was new to 3.13-rc1).
   - A handful of minor fixes for various platforms"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: bcm2835: add missing #xxx-cells to I2C nodes
  ARM: dts: Add max77686 RTC interrupt to cros5250-common
  ARM: vexpress/TC2: Implement MCPM power_down_finish()
  ARM: tegra: Provide dummy powergate implementation
  ARM: omap: fix warning with LPAE build
  ARM: OMAP2+: Remove legacy omap4_twl6030_hsmmc_init
  ARM: OMAP2+: Remove legacy mux code for display.c
  ARM: OMAP2+: Fix undefined reference to set_cntfreq
  gpio: twl4030: Fix passing of pdata in the device tree case
  gpio: twl4030: Fix regression for twl gpio output
  ARM: OMAP2+: More randconfig fixes for reconfigure_io_chain
  ARM: dts: imx6qdl: disable spdif "rxtx5" clock option
  ARM: dts: Fix omap2 specific dtsi files by adding the missing entries
  ARM: OMAP2+: Fix GPMC and simplify bootloader timings for 8250 and smc91x
  i2c: omap: Fix missing device tree flags for omap2
2013-11-26 11:18:37 -08:00
Stephen Warren
a31ab44ef5 ARM: bcm2835: add missing #xxx-cells to I2C nodes
The I2C controller node needs #address-cells and #size-cells properties,
but these are currently missing. Add them. This allows child nodes to be
parsed correctly.

Cc: stable@vger.kernel.org
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-11-25 21:56:00 -08:00
Kevin Hilman
192b4bcbbe The imx fixes for 3.13, part 2:
- Disable S/PDIF "rxtx5" clock option to fix the clocksource breakage
    introduced by S/PDIF driver
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQEcBAABAgAGBQJSjKihAAoJEFBXWFqHsHzOtPAIAKUpaOQ9LjbGM7TEhIStUY9Z
 GC7v1qDIikvo5iZJnTQgAD5+AFVdTbsufbyaMt1rvDmp6QCHr0Lsh+nzJEukTcLU
 rncE5GMOe7lEwgY5KI7iyw3C+Ow4VPND5gLAWYss2+Fd4wJ+4p2XiKaHtQp1KnI0
 L+g5RqqcV13DyP8usvJizmhQb1uhUReEIOIQJ21XszxiI8lPNa2YjoUCLs1aXrJv
 1/aQZKpzGKXAjrXRmnnJrpPyErs0aMzJ6OJwsac86RPZQSnvu20pdEQ8ze3XC5SA
 phEyUoLPWZcR58/Ot/mhuBHSQRXSENI45Y6CKwpGcoSYUOUnSNLmKZKkVgUIjYM=
 =hPqE
 -----END PGP SIGNATURE-----

Merge tag 'imx-fixes-3.13-2' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes

The imx fixes for 3.13, part 2:
 - Disable S/PDIF "rxtx5" clock option to fix the clocksource breakage
   introduced by S/PDIF driver

* tag 'imx-fixes-3.13-2' of git://git.linaro.org/people/shawnguo/linux-2.6:
  ARM: dts: imx6qdl: disable spdif "rxtx5" clock option

Signed-off-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-11-25 15:55:18 -08:00
Doug Anderson
c61248afa8 ARM: dts: Add max77686 RTC interrupt to cros5250-common
Without the interrupt you'll get problems if you enable
CONFIG_RTC_DRV_MAX77686.  Setup the interrupt properly in the device
tree.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Tested-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Cc: stable@vger.kernel.org
2013-11-25 15:14:41 -08:00
Tony Lindgren
edd5eb4e99 ARM: OMAP2+: Fix eMMC on n900 with device tree
Looks like we need to configure the regulators and use the pdata
quirk to make eMMC work with device tree.

It seems that mostly vaux3 is used, and only some earlier revisions
used vmmc2. This has been tested to work on devices where the
system_rev passed by the bootloader has versions 0x0010, 0x2101
and 0x2204.

Cc: devicetree@vger.kernel.org
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Sebastian Reichel <sre@debian.org>
[tony@atomide.com: updated with pinctrl changes and comments from Sebastian]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-11-25 14:23:45 -08:00
Tony Lindgren
26f67a3126 ARM: OMAP2+: Add fixed regulator to omap2plus_defconfig
We do not have REGULATOR_FIXED selected if no boards are selected
and we boot with device tree. This can cause various devices to
fail.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-11-25 14:23:45 -08:00
Tony Lindgren
7ce93f3186 ARM: OMAP2+: Fix more missing data for omap3.dtsi file
After dropping the duplicate data in hwmod that now should come from
the .dts files, I noticed few more entries missing. Let's add these
as otherwise devices relying on these won't work.

Looks like the side tone entries are bundled into the mcbsp1 to 3,
so that may needs some special handling in the hwmod code as it's
currently trying to look up mcbsp2_sidetone and mcbsp3_sidetone
entries.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-11-25 14:23:45 -08:00
Dave Martin
33cb667a00 ARM: vexpress/TC2: Implement MCPM power_down_finish()
This patch implements the power_down_finish() method for TC2, to
enable the kernel to confirm when CPUs are safely powered down.

The information required for determining when a CPU is parked
cannot be obtained from any single place, so a few sources of
information must be combined:

  * mcpm_cpu_power_down() must be pending for the CPU, so that we
    don't get confused by false STANDBYWFI positives arising from
    CPUidle.  This is detected by waiting for the tc2_pm use count
    for the target CPU to reach 0.

  * Either the SPC must report that the CPU has asserted
    STANDBYWFI, or the TC2 tile's reset control logic must be
    holding the CPU in reset.

    Just checking for STANDBYWFI is not sufficient, because this
    signal is not latched when the the cluster is clamped off and
    powered down: the relevant status bits just drop to zero.  This
    means that STANDBYWFI status cannot be used for reliable
    detection of the last CPU in a cluster reaching WFI.

This patch is required in order for kexec to work with MCPM on TC2.

MCPM code was changed in commit 0de0d6467525 ('ARM: 7848/1: mcpm:
Implement cpu_kill() to synchronise on powerdown'), and since then it
will hit a WARN_ON_ONCE() due to power_down_finish not being implemented
on the TC2 platform.

Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Acked-by: Pawel Moll <pawel.moll@arm.com>
Reviewed-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-11-25 14:12:14 -08:00
Olof Johansson
5c1f34c42d Merge tag 'omap-for-v3.13/more-fixes-for-merge-window-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
From Tony Lindgren:
Few more fixes for issues found booting older omaps using device tree.
Also few randconfig build fixes and removal of some dead code for omap4
as it no longer has legacy platform data based booting support.

* tag 'omap-for-v3.13/more-fixes-for-merge-window-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: Remove legacy omap4_twl6030_hsmmc_init
  ARM: OMAP2+: Remove legacy mux code for display.c
  ARM: OMAP2+: Fix undefined reference to set_cntfreq
  gpio: twl4030: Fix passing of pdata in the device tree case
  gpio: twl4030: Fix regression for twl gpio output
  ARM: OMAP2+: More randconfig fixes for reconfigure_io_chain
  ARM: dts: Fix omap2 specific dtsi files by adding the missing entries
  ARM: OMAP2+: Fix GPMC and simplify bootloader timings for 8250 and smc91x
  i2c: omap: Fix missing device tree flags for omap2
2013-11-25 13:34:49 -08:00
Olof Johansson
6dd1e35737 ARM: omap: fix warning with LPAE build
Some omap3 code is throwing a warning:
arch/arm/mach-omap2/pm34xx.c: In function 'omap3_save_secure_ram_context':
arch/arm/mach-omap2/pm34xx.c:123:32: warning: cast to pointer from
  integer of different size [-Wint-to-pointer-cast]

In reality this code will never actually execute with LPAE=y, since
Cortex-A8 doesn't support it. So downcasting the __pa() is safe in
this case.

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Tony Lindgren <tony@atomide.com>
2013-11-25 13:34:48 -08:00
Thomas Petazzoni
96039f735e ARM: mvebu: re-enable PCIe on Armada 370 DB
Commit 14fd8ed0a7fd19913 ("ARM: mvebu: Relocate Armada 370/XP PCIe
device tree nodes") relocated the PCIe controller DT nodes one level
up in the Device Tree, to reflect a more correct representation of the
hardware introduced by the mvebu-mbus Device Tree binding.

However, while most of the boards were properly adjusted accordingly,
the Armada 370 DB board was left unchanged, and therefore, PCIe is
seen as not enabled on this board. This patch fixes that by moving the
PCIe controller node one level-up in armada-370-db.dts.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: <stable@vger.kernel.org> # v3.12+
Fixes: 14fd8ed0a7fd19913 "ARM: mvebu: Relocate Armada 370/XP PCIe device tree nodes"
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-11-25 18:24:36 +00:00
Gregory CLEMENT
b6dda00cdd ARM: mvebu: use the virtual CPU registers to access coherency registers
The Armada XP provides a mechanism called "virtual CPU registers" or
"per-CPU register banking", to access the per-CPU registers of the
current CPU, without having to worry about finding on which CPU we're
running. CPU0 has its registers at 0x21800, CPU1 at 0x21900, CPU2 at
0x21A00 and CPU3 at 0x21B00. The virtual registers accessing the
current CPU registers are at 0x21000.

However, in the Device Tree node that provides the register addresses
for the coherency unit (which is responsible for ensuring coherency
between processors, and I/O coherency between processors and the
DMA-capable devices), a mistake was made: the CPU0-specific registers
were specified instead of the virtual CPU registers. This means that
the coherency barrier needed for I/O coherency was not behaving
properly when executed from a CPU different from CPU0. This patch
fixes that by using the virtual CPU registers.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: <stable@vger.kernel.org> # v3.8+
Fixes: e60304f8cb7bb5 "arm: mvebu: Add hardware I/O Coherency support"
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-11-25 18:22:10 +00:00
Catalin Marinas
b3bf6aa7e7 arm64: Unmask asynchronous aborts when in kernel mode
The asynchronous aborts are generally fatal for the kernel but they can
be masked via the pstate A bit. If a system error happens while in
kernel mode, it won't be visible until returning to user space. This
patch enables this kind of abort early to help identifying the cause.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2013-11-25 16:44:05 +00:00
Catalin Marinas
df503ba7f6 arm64: dts: Reserve the memory used for secondary CPU release address
With the spin-table SMP booting method, secondary CPUs poll a location
passed in the DT. The foundation-v8.dts file doesn't have this memory
reserved and there is a risk of Linux using it before secondary CPUs are
started.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2013-11-25 16:44:04 +00:00
Marc Zyngier
6468178767 arm64: let the core code deal with preempt_count
Commit f27dde8deef3 (sched: Add NEED_RESCHED to the preempt_count)
introduced the use of bit 31 in preempt_count for obscure scheduling
purposes.

This causes interrupts taken from EL0 to hit the (open coded) BUG when
this flag is flipped while handling the interrupt (we compare the
values before and after, and kill the kernel if they are different).

The fix is to stop messing with the preempt count entirely, as this
is already being dealt with in the generic code (irq_enter/irq_exit).

Tested on a dual A53 FPGA running cyclictest.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2013-11-25 16:44:04 +00:00
Martin Schwidefsky
127581b64b s390/mm: handle asce-type exceptions as normal page fault
Git commit 9e34f2686bb088b211b6cac8772e1f644c6180f8
"s390/mm,tlb: tlb flush on page table upgrade fixup" removed the
exception handler for the asce-type exception. This is incorrect
as the user-copy with MVCOS can cause asce-type exceptions in
the kernel if a user pointer is too large. Those need to be
handled with do_no_context to branch to the fixup in the
user-copy code.

The simplest fix for this problem is to call do_dat_exception for
asce-type excpetions, as there is no vma for the address the code
will handle the exception correctly.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-11-25 09:15:42 +01:00
Martin Schwidefsky
8adbf78ec4 s390,time: revert direct ktime path for s390 clockevent device
Git commit 4f37a68cdaf6dea833cfdded2a3e0c47c0f006da
"s390: Use direct ktime path for s390 clockevent device" makes use
of the CLOCK_EVT_FEAT_KTIME clockevent option to avoid the delta
calculation with ktime_get() in clockevents_program_event and the
get_tod_clock() in s390_next_event. This is based on the assumption
that the difference between the internal ktime and the hardware
clock is reflected in the wall_to_monotonic delta. But this is not
true, the ntp corrections are applied via changes to the tk->mult
multiplier and this is not reflected in wall_to_monotonic.

In theory this could be solved by using the raw monotonic clock
but it is simpler to switch back to the standard clock delta
calculation.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-11-25 09:15:41 +01:00
Martin Schwidefsky
79c74ecbeb s390/time,vdso: convert to the new update_vsyscall interface
Switch to the improved update_vsyscall interface that provides
sub-nanosecond precision for gettimeofday and clock_gettime.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-11-25 09:15:39 +01:00
Heiko Carstens
71a86ef055 s390/uaccess: add missing page table walk range check
When translating a user space address, the address must be checked against
the ASCE limit of the process. If the address is larger than the maximum
address that is reachable with the ASCE, an ASCE type exception must be
generated.

The current code simply ignored the higher order bits. This resulted in an
address wrap around in user space instead of an exception in user space.

Cc: stable@vger.kernel.org # v3.9+
Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-11-25 09:15:38 +01:00
Vineet Gupta
97bc386fc1 ARC: Add guard macro to uapi/asm/unistd.h
Chen originally proposed this as "right thing to do" however I
actually ran into this when building perf tools. Some of the utils
include unistd.h as well as linux/unistd.h. Since -I includes kernel
headers too, we end up including the ARC unistd.h twice, leading to
redefinition nwarnings.

------------------>8-------------------
    CC bench/sched-pipe.o
In file included from ~/kernel/arch/arc/include/uapi/asm/unistd.h:21:0,
                 from ~/kernel/include/uapi/linux/unistd.h:7,
                 from bench/sched-pipe.c:24:
~/kernel/include/uapi/asm-generic/unistd.h:889:0: error: "__NR_fcntl64"
redefined [-Werror]
 #define __NR_fcntl64 __NR3264_fcntl
 ^
In file included from
~/gnu/arc-linux-uclibc/sys-include/sys/syscall.h:24:0,
                 from bench/../perf.h:112,
                 from bench/sched-pipe.c:13:
~/gnu/arc-linux-uclibc/include/bits/sysnum.h:761:0: note: this is the
location of the previous definition
------------------>8-------------------

Verified that make headers_install works fine with this.

Suggested-by: Chen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: David Howells <dhowells@redhat.com>
2013-11-25 10:35:23 +05:30
Vineet Gupta
f06d19e460 ARC: extable: Enable sorting at build time
Avoids wasting cycles at boot specially on slower simulators

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Michal Marek <mmarek@suse.cz>
Cc: Francois Bedard <fbedard@synopsys.com>
Cc: linux-kernel@vger.kernel.org
Acked-by: David Daney <david.daney@cavium.com>
2013-11-25 10:35:23 +05:30
Chen Gang
e0513d9ea8 arch/powerpc/kernel: Use %12.12s instead of %12s to avoid memory overflow
for tmp_part->header.name:
    it is "Terminating null required only for names < 12 chars".
    so need to limit the %.12s for it in printk

  additional info:

    %12s  limit the width, not for the original string output length
          if name length is more than 12, it still can be fully displayed.
          if name length is less than 12, the ' ' will be filled before name.

    %.12s truly limit the original string output length (precision)

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-11-25 11:50:57 +11:00
Michael Neuling
ec67ad8281 powerpc/signals: Improved mark VSX not saved with small contexts fix
In a recent patch:
  commit c13f20ac48328b05cd3b8c19e31ed6c132b44b42
  Author: Michael Neuling <mikey@neuling.org>
  powerpc/signals: Mark VSX not saved with small contexts

We fixed an issue but an improved solution was later discussed after the patch
was merged.

Firstly, this patch doesn't handle the 64bit signals case, which could also hit
this issue (but has never been reported).

Secondly, the original patch isn't clear what MSR VSX should be set to.  The
new approach below always clears the MSR VSX bit (to indicate no VSX is in the
context) and sets it only in the specific case where VSX is available (ie. when
VSX has been used and the signal context passed has space to provide the
state).

This reverts the original patch and replaces it with the improved solution.  It
also adds a 64 bit version.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Cc: stable@vger.kernel.org
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-11-25 11:50:51 +11:00
Hari Bathini
8ff812719a powerpc/kdump: Adding symbols in vmcoreinfo to facilitate dump filtering
When CONFIG_SPARSEMEM_VMEMMAP option is used in kernel, makedumpfile fails
to filter vmcore dump as it fails to do vmemmap translations. So far
dump filtering on ppc64 never had to deal with vmemmap addresses seperately
as vmemmap regions where mapped in zone normal. But with the inclusion of
CONFIG_SPARSEMEM_VMEMMAP config option in kernel, this vmemmap address
translation support becomes necessary for dump filtering. For vmemmap adress
translation, few kernel symbols are needed by dump filtering tool. This patch
adds those symbols to vmcoreinfo, which a dump filtering tool can use for
filtering the kernel dump. Tested this changes successfully with makedumpfile
tool that supports vmemmap to physical address translation outside zone normal.

[ Removed unneeded #ifdef as suggested by Michael Ellerman --BenH ]

Signed-off-by: Hari Bathini <hbathini@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-11-25 11:50:12 +11:00
Anton Blanchard
962bc221c3 powerpc: allyesconfig should not select CONFIG_CPU_LITTLE_ENDIAN
Stephen reported a failure in an allyesconfig build.
CONFIG_CPU_LITTLE_ENDIAN=y gets set but his toolchain is not
new enough to support little endian. We really want to
default to a big endian build; Ben suggested using a choice
which defaults to CPU_BIG_ENDIAN.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-11-25 11:49:12 +11:00
Michael Neuling
924dd50bc4 powerpc: Fix error when cross building TAGS & cscope
Currently if I cross build TAGS or cscope from x86 I get this:
  % make ARCH=powerpc TAGS
  gcc-4.8.real: error: unrecognized command line option ‘-mbig-endian’
  GEN     TAGS
  %

I'm not setting CROSS_COMPILE= as logically I shouldn't need to and I
haven't needed to in the past when building TAGS or cscope.  Also, the
above completess correct as the error is not fatal to the build.

This was caused by:
    commit d72b08017161ab385d4ae080ea415c9eb7ceef83
    Author: Ian Munsie <imunsie@au1.ibm.com>
    powerpc: Add ability to build little endian kernels

The below fixes this by testing for the -mbig-endian option before
adding it.

I've not done the same thing in the little endian case as if
-mlittle-endian doesn't exist, we probably want to fail quickly as you
probably have an old big endian compiler.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-11-25 11:49:11 +11:00
Simon Horman
6802cdc58d ARM: shmobile: lager: phy fixup needs CONFIG_PHYLIB
Do not build the phy fixup unless CONFIG_PHYLIB is enabled.

Other than not being useful it is also not possible to link
the code under this condition as phy_register_fixup_for_id(),
mdiobus_read() and mdiobus_write() are absent.

arch/arm/mach-shmobile/built-in.o: In function `lager_ksz8041_fixup':
board-lager.c:(.text+0xb8): undefined reference to `mdiobus_read'
board-lager.c:(.text+0xd4): undefined reference to `mdiobus_write'
arch/arm/mach-shmobile/built-in.o: In function `lager_init':
board-lager.c:(.init.text+0xafc): undefined reference to `phy_register_fixup_for_id'

This problem was introduced by 48c8b96f21817aad
("ARM: shmobile: Lager: add Micrel KSZ8041 PHY fixup")

Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-11-24 15:53:27 +09:00
Linus Torvalds
26b265cd29 Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto update from Herbert Xu:
 - Made x86 ablk_helper generic for ARM
 - Phase out chainiv in favour of eseqiv (affects IPsec)
 - Fixed aes-cbc IV corruption on s390
 - Added constant-time crypto_memneq which replaces memcmp
 - Fixed aes-ctr in omap-aes
 - Added OMAP3 ROM RNG support
 - Add PRNG support for MSM SoC's
 - Add and use Job Ring API in caam
 - Misc fixes

[ NOTE! This pull request was sent within the merge window, but Herbert
  has some questionable email sending setup that makes him public enemy
  #1 as far as gmail is concerned.  So most of his emails seem to be
  trapped by gmail as spam, resulting in me not seeing them.  - Linus ]

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (49 commits)
  crypto: s390 - Fix aes-cbc IV corruption
  crypto: omap-aes - Fix CTR mode counter length
  crypto: omap-sham - Add missing modalias
  padata: make the sequence counter an atomic_t
  crypto: caam - Modify the interface layers to use JR API's
  crypto: caam - Add API's to allocate/free Job Rings
  crypto: caam - Add Platform driver for Job Ring
  hwrng: msm - Add PRNG support for MSM SoC's
  ARM: DT: msm: Add Qualcomm's PRNG driver binding document
  crypto: skcipher - Use eseqiv even on UP machines
  crypto: talitos - Simplify key parsing
  crypto: picoxcell - Simplify and harden key parsing
  crypto: ixp4xx - Simplify and harden key parsing
  crypto: authencesn - Simplify key parsing
  crypto: authenc - Export key parsing helper function
  crypto: mv_cesa: remove deprecated IRQF_DISABLED
  hwrng: OMAP3 ROM Random Number Generator support
  crypto: sha256_ssse3 - also test for BMI2
  crypto: mv_cesa - Remove redundant of_match_ptr
  crypto: sahara - Remove redundant of_match_ptr
  ...
2013-11-23 16:18:25 -08:00
Arnaud Ebalard
2163e61c92 ARM: mvebu: fix second and third PCIe unit of Armada XP mv78260
mv78260 flavour of Marvell Armada XP SoC has 3 PCIe units. The
two first units are both x4 and quad x1 capable. The third unit
is only x4 capable. This patch fixes mv78260 .dtsi to reflect
those capabilities.

Signed-off-by: Arnaud Ebalard <arno@natisbad.org>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: <stable@vger.kernel.org> # v3.10.x
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-11-23 15:31:07 +00:00
Arnaud Ebalard
12b69a5997 ARM: mvebu: second PCIe unit of Armada XP mv78230 is only x1 capable
Various Marvell datasheets advertise second PCIe unit of mv78230
flavour of Armada XP as x4/quad x1 capable. This second unit is in
fact only x1 capable. This patch fixes current mv78230 .dtsi to
reflect that, i.e. makes 1.0 the second interface (instead of 2.0
at the moment). This was successfully tested on a mv78230-based
ReadyNAS 2120 platform with a x1 device (FL1009 XHCI controller)
connected to this second interface.

Signed-off-by: Arnaud Ebalard <arno@natisbad.org>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: <stable@vger.kernel.org> # v3.10.x
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-11-23 15:29:06 +00:00
Scott Wood
d742aa152f powerpc/booke: Only check for hugetlb in flush if vma != NULL
And in flush_hugetlb_page(), don't check whether vma is NULL after
we've already dereferenced it.

This was found by Dan using static analysis as described here:
https://lists.ozlabs.org/pipermail/linuxppc-dev/2013-November/113161.html

We currently get away with this because the callers that currently pass
NULL for vma seem to be 32-bit-only (e.g. highmem, and
CONFIG_DEBUG_PGALLOC in pgtable_32.c)  Hugetlb is currently 64-bit only,
so we never saw a NULL vma here.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
2013-11-22 16:57:29 -06:00
Adam Borowski
53567cf3c2 powerpc/85xx: typo in dts: "interupt" (four devices)
These lines were inoperative for four years, which puts some doubt into
their importance, and it's possible the fixed version will regress, but
at the very least they should be removed instead.

Signed-off-by: Adam Borowski <kilobyte@angband.pl>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2013-11-22 16:57:25 -06:00
LEROY Christophe
ae2163be10 powerpc/8xx: mfspr SPRN_TBRx in lieu of mftb/mftbu is not supported
Commit beb2dc0a7a84be003ce54e98b95d65cc66e6e536 breaks the MPC8xx which
seems to not support using mfspr SPRN_TBRx instead of mftb/mftbu
despite what is written in the reference manual.

This patch reverts to the use of mftb/mftbu when CONFIG_8xx is
selected.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2013-11-22 16:56:48 -06:00
Tiejun Chen
cbf8a358be powerpc/corenet64: compile with CONFIG_E{5,6}500_CPU well
If CONFIG_ALTIVEC is enabled for CoreNet64, and if we also
select CONFIG_E{5,6}500_CPU this may introduce -mcpu=e500mc64
into $CFLAGS. But Altivec option not allowed with e500mc64,
then some compiling errors occur like this:

      CC      arch/powerpc/lib/xor_vmx.o
    arch/powerpc/lib/xor_vmx.c:1:0: error: AltiVec not supported in this target
    make[1]: *** [arch/powerpc/lib/xor_vmx.o] Error 1
    make: *** [arch/powerpc/lib] Error 2

So we should restrict e500mc64 in altivec scenario.

Signed-off-by: Tiejun Chen <tiejun.chen@windriver.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2013-11-22 16:56:33 -06:00
Linus Torvalds
aecde27c4f Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull DRM fixes from Dave Airlie:
 "I was going to leave this until post -rc1 but sysfs fixes broke
  hotplug in userspace, so I had to fix it harder, otherwise a set of
  pulls from intel, radeon and vmware,

  The vmware/ttm changes are bit larger but since its early and they are
  unlikely to break anything else I put them in, it lets vmware work
  with dri3"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (36 commits)
  drm/sysfs: fix hotplug regression since lifetime changes
  drm/exynos: g2d: fix memory leak to userptr
  drm/i915: Fix gen3 self-refresh watermarks
  drm/ttm: Remove set_need_resched from the ttm fault handler
  drm/ttm: Don't move non-existing data
  drm/radeon: hook up backlight functions for CI and KV family.
  drm/i915: Replicate BIOS eDP bpp clamping hack for hsw
  drm/i915: Do not enable package C8 on unsupported hardware
  drm/i915: Hold pc8 lock around toggling pc8.gpu_idle
  drm/i915: encoder->get_config is no longer optional
  drm/i915/tv: add ->get_config callback
  drm/radeon/cik: Add macrotile mode array query
  drm/radeon/cik: Return backend map information to userspace
  drm/vmwgfx: Make vmwgfx dma buffers prime aware
  drm/vmwgfx: Make surfaces prime-aware
  drm/vmwgfx: Hook up the prime ioctls
  drm/ttm: Add a minimal prime implementation for ttm base objects
  drm/vmwgfx: Fix false lockdep warning
  drm/ttm: Allow execbuf util reserves without ticket
  drm/i915: restore the early forcewake cleanup
  ...
2013-11-22 10:56:11 -08:00
Linus Torvalds
7fa850ab4f Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM fixes from Russell King:
 "Some small fixes for this merge window, most of them quite self
  explanatory - the biggest thing here is a fix for the ARMv7 LPAE
  suspend/resume support"

* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: 7894/1: kconfig: select GENERIC_CLOCKEVENTS if HAVE_ARM_ARCH_TIMER
  ARM: 7893/1: bitops: only emit .arch_extension mp if CONFIG_SMP
  ARM: 7892/1: Fix warning for V7M builds
  ARM: 7888/1: seccomp: not compatible with ARM OABI
  ARM: 7886/1: make OABI default to off
  ARM: 7885/1: Save/Restore 64-bit TTBR registers on LPAE suspend/resume
  ARM: 7884/1: mm: Fix ECC mem policy printk
  ARM: 7883/1: fix mov to mvn conversion in case of 64 bit phys_addr_t and BE
  ARM: 7882/1: mm: fix __phys_to_virt to work with 64 bit phys_addr_t in BE case
  ARM: 7881/1: __fixup_smp read of SCU config should do byteswap in BE case
  ARM: Fix nommu.c build warning
2013-11-22 09:56:51 -08:00