Commit Graph

106767 Commits

Author SHA1 Message Date
Olof Johansson
aaaa10b096 Merge tag 'samsung-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/dt
Merge "Samsung DT updates for v3.17" from Kukjin Kim:

exynos3250: add i2s dt for audio interface

exynos4
 - cleanup arm-pmu node because of 4 pmu on
   exynos4412 but 2 pmu on other exynos4 SoCs
 - add support sub-nodes to exynos usb host for exynos4

exynos4412-odroid-common
 - fix T-FLASH hotplug detection
 - disable 'always on' for BUCK8
 - add support for GPIO based buttons
 - add MAX98090 audio codec

exynos4412-odroidx2 and exynos4412-odroidu3
- refactor exynos4412-odroidx and exynos4412-odroid-common
  for odroid-x2 and u2/u3

exynos4412-odroidx
 - add support for USB phy, host and device
 - enable common hardware blocks, secure firmware calls,
   watchdog, g2d and fimc (mem2mem) multimedia accelerators
 - add support for USB phy, host and device
 - correct memory size

exynos5410
 - fill in CPU clock-frequency property to avoid warning

exynos5420
 - remove display pd because of instability

exynos5420-peach-pit and exynos5800-peach-pi
 - sort nodes each other to check its differences easily
 - enable audio support and add sound-card name property
 - add mask-tpm-reset node
 - add cros_ec including keyboard, i2c tunnel and tps65090
   and battery under the i2c tunnel

* tag 'samsung-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: dts: Add I2S dt node for exynos3250
  ARM: dts: Add cros_ec to exynos5420-peach-pit and exynos5800-peach-pi
  ARM: dts: clean up arm-pmu node for exynos4
  ARM: dts: remove display power domain for exynos5420
  ARM: dts: Add sound nodes for Odroid-X2/U3 boards
  ARM: dts: fix T-FLASH hotplug detection for exynos4412-odroid-common
  ARM: dts: add support for GPIO buttons for exynos4412-odroid
  ARM: dts: disable 'always on' for BUCK8 regulator for exynos4412-odroid-common
  ARM: dts: refactor Odroid DTS file and add support for Odroid X2 and U2/U3
  ARM: dts: correct memory size for exynos4412-odroidx
  ARM: dts: add support for USB phy, host and device for exynos4412-odroidx
  ARM: dts: enable common hardware blocks for exynos4412-odroidx
  ARM: dts: add port sub-nodes to exynos usb host modules for exynos4
  ARM: dts: Add mask-tpm-reset node in exynos5800-peach-pi
  ARM: dts: Add mask-tpm-reset node in exynos5420-peach-pit
  ARM: dts: Add sound-card name for Snow/Peach-Pit/Peach-Pi
  ARM: dts: Fill in CPU clock-frequency for exynos5410
  ARM: dts: Sort nodes within Peach-pit/Peach-pi dts files
  ARM: dts: Enable audio support for exynos5800-peach-pi
2014-07-19 15:06:48 -07:00
Olof Johansson
f37ac9e5a4 Merge tag 'exynos-cpuidle' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/soc
Merge "Samsung exynos cpuidle update for v3.17" from Kukjin Kim:

- add callbacks exynos_suspend() and exynos_powered_up()
  for support cpuidle through mcpm
- skip exynos_cpuidle for exynos5420 because is uses
  cpuidle-big-liggle generic cpuidle driver
- add generic functions to calculate cpu number is used
  for pmu and this is required for exynos5420 multi-cluster
- add of_device_id structure for big.LITTLE cpuidle and
  add "samsung,exynos5420" compatible string for exynos5420

* tag 'exynos-cpuidle' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: EXYNOS: populate suspend and powered_up callbacks for mcpm
  ARM: EXYNOS: do not allow cpuidle registration for exynos5420
  cpuidle: big.LITTLE: init driver for exynos5420
  cpuidle: big.LITTLE: Add ARCH_EXYNOS entry in config
  ARM: EXYNOS: add generic function to calculate cpu number
  cpuidle: big.LITTLE: add of_device_id structure
  + Linux 3.16-rc5

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-19 15:03:08 -07:00
Olof Johansson
f57c0e049a Merge tag 'samsung-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/cleanup
Merge "Samsung cleanup for v3.17" from Kukjin Kim:

Most of them are for exynos SoCs, remove useless codes and update for
PMU consolidation.

- remove unnecessary header file in mach-exynos/pmu.c
- remove unused code in mach-exynos/common.h
- remove mach-exynos/regs-pmu.h dependency from PD
- remove file path from comment section in mach-exynos

- move SYSREG definitions into mach-exynos/regs-sys.h

- add mapping PMU base address via DT for PMU cleanup

- use staic in mach-exynos/common.h
- update Samsung UART config options for low-level debug

* tag 'samsung-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: EXYNOS: Add support for mapping PMU base address via DT
  ARM: EXYNOS: Remove "linux/bug.h" from pmu.c
  ARM: EXYNOS: Remove regs-pmu.h header dependency from pm_domain
  ARM: EXYNOS: Remove file path from comment section
  ARM: EXYNOS: Move SYSREG definition into sys-reg specific file
  ARM: EXYNOS: Make exynos machine_ops as static
  ARM: EXYNOS: Remove unused code in common.h
  ARM: debug: Update Samsung UART config options
  + Linux 3.16-rc5

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-19 15:01:08 -07:00
Sachin Kamat
fc3791f3a9 ARM: exynos_defconfig: Update exynos_defconfig
Removed outdated configs. Enabled most of the configs used on latest
Exynos based platforms. This will provide a reference for users trying
to verify and test various features on Exynos based platforms and also
help in detecting breakages by widening the build coverage.

Signed-off-by: Sachin Kamat <sachin.kamat@samsung.com>
[arun.kk@samsung.com: on Snow, Pit, Pi chromebooks]
Tested-by: Arun Kumar K <arun.kk@samsung.com>
Tested-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-19 14:59:32 -07:00
Krzysztof Kozlowski
7310d99ffc ARM: EXYNOS: Fix build breakge with PM_SLEEP=n
Fix building of exynos_defconfig with disabled PM_SLEEP:
CONFIG_PM_SLEEP=n
CONFIG_PM_SLEEP_SMP=n
CONFIG_SUSPEND=n
by moving functions for power up/down of CPU and cluster to platsmp.c

The build error messages:
arch/arm/mach-exynos/built-in.o: In function `exynos_boot_secondary':
arch/arm/mach-exynos/platsmp.c:111: undefined reference to `exynos_cpu_power_state'
arch/arm/mach-exynos/platsmp.c:112: undefined reference to `exynos_cpu_power_up'
arch/arm/mach-exynos/platsmp.c:116: undefined reference to `exynos_cpu_power_state'
make: *** [vmlinux] Error 1

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>,
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-19 14:59:24 -07:00
Olof Johansson
46dd1230ba Merge tag 'mvebu-defconfig-3.17-2' of git://git.infradead.org/linux-mvebu into next/defconfig
Merge "ARM: mvebu: defconfig changes for v3.17 (round 2)" from Jason Cooper:

"Here's all the defconfig changes we have for mvebu this time around. The
big one is the removal of kirkwood_defconfig, corresponding to the
mach-kirkwood/ removal in mvebu/soc."

 - mvebu
   * Add appended_dtb support
   * Add devtmpfs support
   * Add 375 network driver
   * Add cpuidle support
   * Add cpufreq support

 - kirkwood
   * Remove kirkwood_defconfig

* tag 'mvebu-defconfig-3.17-2' of git://git.infradead.org/linux-mvebu:
  ARM: mvebu: update mvebu_v7_defconfig with cpufreq support
  ARM: mvebu: defconfig: enable cpuidle support in mvebu_v7_defconfig
  ARM: Kirkwood: Remove kirkwood_defconfig
  ARM: mvebu: enable Armada 375 network driver in mvebu_v7_defconfig
  ARM: mvebu: add devtmpfs to mvebu_v5_defconfig
  ARM: mvebu: add appended DTB support in mvebu_v5_defconfig

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-19 14:30:21 -07:00
Olof Johansson
4338925434 Merge tag 'mvebu-soc-3.17-2' of git://git.infradead.org/linux-mvebu into next/soc
Merge "ARM: mvebu SoC changes for v3.17 (round 2)" from Jason Cooper:

"Yeah, it's just one patch, but it's a beautiful one!  Thanks to the
efforts of many people over the last couple years, and in particular,
Andrew Lunn, Kirkwood has been completely converted to DT."

 - kirkwood
   * Remove mach-kirkwood/, It's fully supported in mach-mvebu/

* tag 'mvebu-soc-3.17-2' of git://git.infradead.org/linux-mvebu:
  ARM: Kirkwood: Remove mach-kirkwood

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-19 14:28:06 -07:00
Olof Johansson
a67f02c98e Merge tag 'tegra-for-3.17-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/defconfig
Merge "ARM: tegra: defconfig updates for 3.17" from Theirry Reding:

This set of patches update the tegra_defconfig by first regenerating on
top of v3.16-rc1 to prune all non-existent symbols or symbols which are
now selected by default.

* tag 'tegra-for-3.17-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  ARM: tegra: enable igb, stmpe, i2c chardev, lm95245, pwm leds
  ARM: tegra: rebuild tegra_defconfig

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-19 12:53:10 -07:00
Olof Johansson
223f93ed7e Merge tag 'tegra-for-3.17-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/dt
Merge "ARM: tegra: device tree changes for 3.17" from Thierry Reding:

- New board support:
  * Apalis T30
- HDA support for Tegra124 and Venice2
- Display on Medcom Wide and Roth
- GK20A support on Tegra124
- XUSB pad controller for Tegra124 and Jetson TK1
- Various cleanups

This pulls in the for-3.17/fuse-move, for-3.17/dt-cros-ec-kbd and
for-3.17/xusb-padctl branches to resolve dependencies.

Note that the Apalis T30 support has a runtime dependency on the
for-3.17/pcie-regulators branch, so they should preferably be applied
in that order. I didn't merge that branch into this because Apalis T30
support is new, therefore can't regress, and because the dependency
exists only at runtime.

* tag 'tegra-for-3.17-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: (28 commits)
  ARM: tegra: roth: add display DT node
  ARM: tegra: Fix typoed ams,ext-control properties
  ARM: tegra: jetson-tk1: Add XUSB pad controller
  ARM: tegra: tegra124: Add XUSB pad controller
  ARM: tegra: add GK20A GPU to Tegra124 DT
  ARM: tegra: of: add GK20A device tree binding
  ARM: tegra: roth: enable input on mmc clock pins
  ARM: tegra: roth: fix unsupported pinmux properties
  ARM: tegra: Migrate Apalis T30 PCIe power supply scheme
  ARM: tegra: tamonten: add the display to the Medcom Wide
  ARM: tegra: tamonten: add the base board regulators
  ARM: tegra: initial support for apalis t30
  ARM: tegra: jetson-tk1: mark eMMC as non-removable
  ARM: tegra: venice2 - Enable HDA
  ARM: tegra: Add Tegra124 HDA support
  ARM: tegra: Add the EC i2c tunnel to tegra124-venice2
  soc/tegra: fuse: fix dummy functions
  soc/tegra: fuse: move APB DMA into Tegra20 fuse driver
  soc/tegra: Add efuse and apbmisc bindings
  soc/tegra: Add efuse driver for Tegra
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-19 12:51:26 -07:00
Olof Johansson
b776eec135 Merge tag 'tegra-for-3.17-pcie-regulators' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/drivers
Merge "ARM: tegra: rework PCIe regulators" from Thierry Reding:

This branch reworks the set of regulators that the Tegra PCIe driver
uses, so that the driver and DT bindings more correctly model what's
really going on in HW. For backwards-compatibility the driver will
fallback to using the old set of regulators if the new ones can't be
found.

I've made this a separate branch in case it needs to be pulled into the
PCIe tree to resolve any conflicts.

* tag 'tegra-for-3.17-pcie-regulators' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  ARM: tegra: Remove legacy PCIe power supply properties
  PCI: tegra: Remove deprecated power supply properties
  PCI: tegra: Implement accurate power supply scheme
  ARM: tegra: Add new PCIe regulator properties
  PCI: tegra: Overhaul regulator usage

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-19 12:35:45 -07:00
Olof Johansson
c6b659c005 Merge tag 'tegra-for-3.17-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/cleanup
Merge "ARM: tegra: core code changes for 3.17" from Thierry Reding:

Some of the code that's currently called from the Tegra machine setup
code is moved to regular initcalls. To catch dependency violations, the
various code paths now WARN if they're called to early. Not all of the
potential candidates are converted yet, but those that were have been
verified to work across all supported Tegra generations.

A new function, soc_is_tegra(), is also provided to make sure that the
initcalls can abort early if they aren't run on Tegra, which can happen
for multi-platform builds.

Finally this also moves out the PMC driver to drivers/soc/tegra so that
it can be shared with 64-bit ARM.

This is based on the for-3.17/fuse-move branch. The split is somewhat
arbitrary but allows the dependents of the for-3.17/fuse-move to pull
in as little code as necessary.

* tag 'tegra-for-3.17-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  ARM: tegra: Convert PMC to a driver
  soc/tegra: fuse: Set up in early initcall
  ARM: tegra: Always lock the CPU reset vector
  ARM: tegra: Setup CPU hotplug in a pure initcall
  soc/tegra: Implement runtime check for Tegra SoCs

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-19 12:31:22 -07:00
Olof Johansson
23e892929e Merge tag 'tegra-for-3.17-fuse-move' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/cleanup
Merge "ARM: tegra: move fuse code out of arch/arm" from Thierry Reding:

This branch moves code related to the Tegra fuses out of arch/arm and
into a centralized location which could be shared with ARM64. It also
adds support for reading the fuse data through sysfs.

Included is also some preparatory work that moves Tegra-related header
files from include/linux to include/soc/tegra as suggested by Arnd.

Furthermore the Tegra chip ID is now retrieved using a function rather
than a variable so that sanity checks can be done. This is convenient
in subsequent patches that will move some of the code that's currently
called from Tegra machine setup into regular initcalls so that it can
be reused on 64-bit ARM. The sanity checks help with verifying that no
code tries to obtain the Tegra chip ID before the underlying driver is
properly initialized.

* tag 'tegra-for-3.17-fuse-move' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  soc/tegra: fuse: fix dummy functions
  soc/tegra: fuse: move APB DMA into Tegra20 fuse driver
  soc/tegra: Add efuse and apbmisc bindings
  soc/tegra: Add efuse driver for Tegra
  ARM: tegra: move fuse exports to soc/tegra/fuse.h
  ARM: tegra: export apb dma readl/writel
  ARM: tegra: Use a function to get the chip ID
  ARM: tegra: Sort includes alphabetically
  ARM: tegra: Move includes to include/soc/tegra

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-19 12:29:11 -07:00
Olof Johansson
7b2a428a33 Merge tag 'sunxi-core-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into next/soc
Merge "Allwinner core additions for 3.17" from Maxime Ripard:

Nothing very fancy here, only the introduction from the new Allwinner A23 SoC.

* tag 'sunxi-core-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
  ARM: sunxi: select MFD_SUN6I_PRCM when sun8i arch support is enabled
  ARM: sunxi: Add earlyprintk support using R_UART (sun6i/sun8i)
  ARM: sunxi: Introduce Allwinner A23 support

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-19 12:22:47 -07:00
Olof Johansson
15bebad68e Merge tag 'sunxi-dt-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into next/dt
Merge "Allwinner DT additions for 3.17" from Maxime Ripard:

Among the few patches that we have so far, there's a few noticeable changes:
 - Introduction of the Allwinner A23 SoC
 - Support for the GMAC on the A31. This is only available so far on the
   boards which bootloader enable the PHY regulator.
 - Addition of the infrared receiver

* tag 'sunxi-dt-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux: (22 commits)
  ARM: dts: sun6i: Add Merrii A31 Hummingbird support
  ARM: dts: sun6i: Add ethernet alias for GMAC
  ARM: dts: sun6i: Add A31 GMAC gigabit ethernet controller node
  ARM: dts: sun6i: Add GMAC clock node to the A31 dtsi
  ARM: dts: sun6i: Add pin muxing options for GMAC
  ARM: sun8i: Add PRCM clock and reset controller nodes to the DTSI
  ARM: sun8i: Add reset controller nodes to the DTSI
  ARM: sun8i: Add basic clock nodes to the DTSI
  ARM: dts: sun4i: Add ir node to various boards
  ARM: dts: sun4i: Add ir controller nodes and pinmux
  ARM: dts: sun4i: Add new ba10-tvbox board
  ARM: dts: sun7i: Add board support for LinkSprite pcDuino V3
  ARM: dts: sun7i: Add ir receiver support to a20-i12-tvbox
  ARM: dts: sun7i: Rename sun7i-a20-ir to sun4i-a10-ir
  ARM: dts: sun7i: Add AXP209 support to various boards
  ARM: dts: sun4i: Add AXP209 support to various boards
  ARM: dts: sunxi: Add #interrupt-cells to pinctrl nodes
  ARM: sun8i: dt: Add Ippo-q8h v5 support
  ARM: sunxi: Add Allwinner A23 dtsi
  ARM: sunxi: Add IR controllers on A20 to dtsi
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-19 12:19:28 -07:00
Olof Johansson
730346236a Merge tag 'zynq-dt-for-3.17' of git://git.xilinx.com/linux-xlnx into next/dt
Merge "Xilinx Zynq changes for v3.17" from Michal Simek:

arm: Xilinx Zynq dt patches for v3.17

- Document and use new cadence serial binding

* tag 'zynq-dt-for-3.17' of git://git.xilinx.com/linux-xlnx:
  ARM: zynq: DT: Migrate UART to Cadence binding
  tty: cadence: Document DT binding
  + Linux 3.16-rc5

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-19 12:16:34 -07:00
Olof Johansson
1409f3fd5b Merge tag 'imx-dt-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/dt
Merge "ARM: imx: device tree updates for 3.17" from Shawn Guo:

The i.MX device tree updates for 3.17:
 - Add device tree sources and pin function header for i.MX6SX SoC
 - Initial imx6sx-sdb board support with FEC, MMC, USB, PMIC, Audio
   and GPIO key enabled
 - New board support: mbimxsd25 and mbimxsd27 from Eukrea, aristainetos
   imx6dl boards, Rex Pro and Basic, Ka-Ro TX6
 - Restructure imx6qdl-wandboard.dtsi for new rev C1 board
 - Split M28EVK and M53EVK into SoM and EVK parts
 - A few correction around SDMA, SSI and SATA device nodes
 - Add eSATA support for Cubox-i board
 - Updates on edmqmx6 to enable PCIe, I2C and CAN
 - Use DT macro for clock ID for imx27 and imx6qdl
 - Add FlexCAN support for VF610 SoC

* tag 'imx-dt-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: (125 commits)
  ARM: dts: vf610: add FlexCAN node
  ARM: dts: add initial Rex Basic board support
  ARM: dts: add initial Rex Pro board support
  ARM: dts: mx5: Split M53EVK into SoM and EVK parts
  ARM: dts: imx6: RIoTboard explicitly define pad settings
  ARM: dts: vf610: fix length of eshdc1 register property
  ARM: dts: Restructure imx6qdl-wandboard.dtsi for new rev C1 board.
  ARM: dts: imx53: correct clock-names of SATA node
  ARM: imx6: Align ssi nodes between mx6 variants
  ARM: i.MX27 clk: dts: Use clock defines in DTS files
  ARM: dts: imx: correct sdma compatbile for imx6sl and imx6sx
  ARM: dts: imx6sx-sdb: Add audio support
  ARM: dts: imx6sx: Pass the fsl,fifo-depth property
  ARM: dts: imx6sx: Fix sdma node
  ARM: dts: imx6: edmqmx6: Add can bus
  ARM: dts: imx6: edmqmx6: Add two other i2c buses
  ARM: dts: imx6: edmqmx6: Add PCIe support
  ARM: dts: imx25-pdk: Add USB OTG support
  ARM: dts: i.MX53: add aipstz nodes
  ARM: dts: mxs: Split M28EVK into SoM and EVK parts
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-19 12:12:57 -07:00
Olof Johansson
b40abaf07f Merge tag 'imx-soc-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/soc
Merge "ARM: imx: SoC changes for 3.17" from Shawn Guo:

The i.MX SoC changes for 3.17:
 - Add devicetree support for i.MX1 and i.MX21 clock driver
 - Use CLOCKSOURCE_OF_DECLARE() to initialize timer for DT targets
 - Use of_clk_init() to initialize i.MX25 and i.MX27 clock driver in
   device tree boot
 - Remove i.MX1 camera support
 - Remove i.MX27 IP Camera and Lite-Kit board support
 - Add suspend and cpuidle support for i.mx6sx
 - Clean up unused clk_register_clkdev() lookups
 - Update imx-weim bus driver to support populating devices on a simple
   bus
 - Switch i.MX27 and i.MX6QDL clock driver to use macro for clock IDs
 - Make i.MX51 a DT only platform and clean up the non-DT support code
 - Support disabling supervisor protect via DT
 - Random defconfig updates

* tag 'imx-soc-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: (69 commits)
  ARM: imx: clk-vf610: fix FlexCAN clock gating
  ARM: i.MX: Use CLOCKSOURCE_OF_DECLARE() for DT targets
  ARM: i.MX53: globally disable supervisor protect
  ARM: i.MX: allow disabling supervisor protect via DT
  ARM: i.MX27 clk: Add 26 MHz oscillator circuit clock gate
  ARM: i.MX27 clk: Remove unused definitions
  ARM: i.MX27 clk: Introduce DT include for clock provider
  ARM: i.MX: Remove Freescale Logic Product Development i.MX27 Lite-Kit board support
  ARM: i.MX: Remove excess symbols ARCH_MX1, ARCH_MX25 and MACH_MX27
  ARM: i.MX: Remove i.MX1 camera support
  ARM: imx: use PTR_ERR_OR_ZERO
  bus: imx-weim: populate devices on a simple bus
  ARM: imx: build cpu_is_imx6sl function conditionally
  ARM: imx: imx6sx uses imx6q cpuidle code
  ARM: imx: drop PL310 errata 588369 and 727915
  ARM: imx_v6_v7_defconfig: add FSL_EDMA and PRINTK_TIME
  ARM: imx: clk-imx6sx: register SSI/SSI_IPG as shared gate clocks
  ARM: imx_v6_v7_defconfig: Enable flexcan driver for can support
  ARM: imx_v6_v7_defconfig: Enable STMPE gpio support
  ARM: imx: mark .dt_compat as const
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-19 11:56:39 -07:00
Olof Johansson
0d29db01b3 Merge tag 'renesas-defconfig4-for-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/defconfig
Merge "Fourth Round of Renesas ARM Based SoC Defconfig Updates for v3.17" from
Simon Horman:

The genmai board code is going away so remove:
 - The genmai defconfig
 - MACH_GENMAI from shmobile defconfig

* tag 'renesas-defconfig4-for-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: defconfig: Remove MACH_GENMAI
  ARM: shmobile: genmai: remove defconfig

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-19 11:51:20 -07:00
Olof Johansson
f097748f39 Merge tag 'keystone-dts' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone into next/dt
Merge "Keystone DTS update for 3.17" from Santosh Shilimkar:

Keystone DTS update for 3.17
 - Ethernet clock tree fix.
 - MDIO device tree node. Respective driver update is already queued.
 - Ethernet phy node. Respective driver update is already queued.

* tag 'keystone-dts' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone:
  ARM: dts: keystone-evm: add 1g ethernet phys nodes
  ARM: dts: keystone: add mdio devices entries
  ARM: dts: keystone: fix netcp's clocks definitions

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-19 11:49:16 -07:00
Linus Torvalds
d057190925 Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fixes from Thomas Gleixner:
 "The locking department delivers:

   - A rather large and intrusive bundle of fixes to address serious
     performance regressions introduced by the new rwsem / mcs
     technology.  Simpler solutions have been discussed, but they would
     have been ugly bandaids with more risk than doing the right thing.

   - Make the rwsem spin on owner technology opt-in for architectures
     and enable it only on the known to work ones.

   - A few fixes to the lockdep userspace library"

* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  locking/rwsem: Add CONFIG_RWSEM_SPIN_ON_OWNER
  locking/mutex: Disable optimistic spinning on some architectures
  locking/rwsem: Reduce the size of struct rw_semaphore
  locking/rwsem: Rename 'activity' to 'count'
  locking/spinlocks/mcs: Micro-optimize osq_unlock()
  locking/spinlocks/mcs: Introduce and use init macro and function for osq locks
  locking/spinlocks/mcs: Convert osq lock to atomic_t to reduce overhead
  locking/spinlocks/mcs: Rename optimistic_spin_queue() to optimistic_spin_node()
  locking/rwsem: Allow conservative optimistic spinning when readers have lock
  tools/liblockdep: Account for bitfield changes in lockdeps lock_acquire
  tools/liblockdep: Remove debug print left over from development
  tools/liblockdep: Fix comparison of a boolean value with a value of 2
2014-07-19 06:27:55 -10:00
Thomas Gleixner
1b0733837a Merge tag 'irqchip-core-3.17-3' of git://git.infradead.org/users/jcooper/linux into irq/core
irqchip core changes for v3.17 (round #3) from Jason Cooper
 * gic: Add GICv3 driver
 * atmel: Move atmel aic driver from arch code to irqchip/
2014-07-19 10:14:55 +02:00
Linus Torvalds
d614cb0bc3 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:
 "A smaller set of fixes this week, and all regression fixes:
   - a handful of issues fixed on at91 with common clock conversion
   - a set of fixes for Marvell mvebu (SMP, coherency, PM)
   - a clock fix for i.MX6Q.
   - ... and a SMP/hotplug fix for Exynos"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: EXYNOS: Fix core ID used by platsmp and hotplug code
  ARM: at91/dt: add missing clocks property to pwm node in sam9x5.dtsi
  ARM: at91/dt: fix usb0 clocks definition in sam9n12 dtsi
  ARM: at91: at91sam9x5: correct typo error for ohci clock
  ARM: clk-imx6q: parent lvds_sel input from upstream clock gates
  ARM: mvebu: Fix coherency bus notifiers by using separate notifiers
  ARM: mvebu: Fix the operand list in the inline asm of armada_370_xp_pmsu_idle_enter
  ARM: mvebu: fix SMP boot for Armada 38x and Armada 375 Z1 in big endian
2014-07-18 20:49:47 -10:00
Linus Torvalds
1b9f0efd61 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Peter Anvin:
 "A couple of key fixes and a few less critical ones.  The main ones
  are:

   - add a .bss section to the PE/COFF headers when building with EFI
     stub

   - invoke the correct paravirt magic when building the espfix page
     tables

  Unfortunately both of these areas also have at least one additional
  fix each still in thie pipeline, but which are not yet ready to push"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86: Remove unused variable "polling"
  x86/espfix/xen: Fix allocation of pages for paravirt page tables
  x86/efi: Include a .bss section within the PE/COFF headers
  efi: fdt: Do not report an error during boot if UEFI is not available
  efi/arm64: efistub: remove local copy of linux_banner
2014-07-18 20:46:55 -10:00
Olof Johansson
412a9bbd12 Merge tag 'omap-for-v3.17/dt-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/dt
Merge "omap dts changes for v3.17 merge window, part1" from Tony Lindgren:

First set of .dts changes for omaps for v3.17 merge window:

- Enable irqchip crossbar interrupt mapping. These changes
  are based on an immutable irqchip branch set up by Jason
  Cooper to make it easier to merge the related .dts changes.

- Removal of omap2 related static clock data that now comes
  from device tree.

- Enabling of PHY regulators for various omaps

- Enabling of PCIe for dra7

- Add support for am437x starterkit

- Enable audio for for omap5

- Enable display and am335x-evmsk

* tag 'omap-for-v3.17/dt-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (43 commits)
  ARM: DTS: omap5-uevm: Enable basic audio (McPDM <-> twl6040)
  ARM: DTS: omap5-uevm: Add node for twl6040 audio codec
  ARM: DTS: omap5-uevm: Enable palmas clk32kgaudio clock
  ARM: dts: dra7: Add dt data for PCIe controller
  ARM: dts: dra7: Add dt data for PCIe PHY
  ARM: dts: dra7: Add dt data for PCIe PHY control module
  ARM: dts: dra7xx-clocks: Add missing clocks for second PCIe PHY instance
  ARM: dts: dra7xx-clocks: rename pcie clocks to accommodate second PHY instance
  ARM: dts: dra7xx-clocks: Add missing 32KHz clocks used for PHY
  ARM: dts: dra7xx-clocks: Change the parent of apll_pcie_in_clk_mux to dpll_pcie_ref_m2ldo_ck
  ARM: dts: dra7xx-clocks: Add divider table to optfclk_pciephy_div clock
  ARM: dts: dra7-evm: Add regulator information to USB2 PHYs
  ARM: omap2plus_defconfig: enable TPS65218 configs
  ARM: dts: AM437x: Add TPS65218 device tree nodes
  ARM: dts: AM437x: Fix i2c nodes indentation
  ARM: dts: AM43x: Add TPS65218 device tree nodes
  ARM: dts: Add devicetree for Gumstix Pepper board
  ARM: dts: dra7: add crossbar device binding
  ARM: dts: dra7: add routable-irqs property for gic node
  ARM: OMAP24xx: clock: remove legacy clock data
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-18 22:16:48 -07:00
Olof Johansson
25f003285b Merge branch 'spear/pcie-support-v10' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/linux into next/drivers
Merge "ARM: SPEAr13xx PCIe updates for v3.17" from Viresh Kumar:

This is another attempt to merge SPEAr PCIe updates after olof
pointed out *enough* issues with initial PULL request:

https://lkml.org/lkml/2014/7/9/641

Last version was sent here: http://patchwork.ozlabs.org/patch/368479/
and all the nits pointed out by Kishon & Bjorn are fixed in this pull
request.

Apart from ARM specific changes, this updates drivers/{pci|phy}. Bjorn
advised to get complete series via arm-soc tree earlier:

http://www.spinics.net/lists/linux-pci/msg30271.html

* 'spear/pcie-support-v10' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/linux:
  ARM: SPEAr13xx: Update defconfigs
  ARM: SPEAr13xx: Add pcie and miphy DT nodes
  ARM: SPEAr13xx: Add bindings and dt node for misc block
  ARM: SPEAr13xx: Fix static mapping table
  phy: Add drivers for PCIe and SATA phy on SPEAr13xx
  PCI: spear: Add PCIe driver for ST Microelectronics SPEAr13xx

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-18 21:55:04 -07:00
Olof Johansson
c6ffdc0741 Merge tag 'renesas-dt3-for-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/dt
Merge "Third Round of Renesas ARM Based SoC DT Updates for v3.17" from Simon
Horman:

* Initialise SCI using DT when booting the kzm9g, armadillo800eva,
  ape6evm and bockw boards without legacy-C code.

* tag 'renesas-dt3-for-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: (24 commits)
  ARM: shmobile: kzm9g-reference: Initialise SCIF device using DT
  ARM: shmobile: sh73a0: Add SCIF nodes
  ARM: shmobile: armadillo800eva-reference: Initialise SCIF device using DT
  ARM: shmobile: r8a7740: Add SCIF nodes
  ARM: shmobile: ape6evm-reference: Initialise SCIF device using DT
  ARM: shmobile: r8a73a4: Add SCIF nodes
  ARM: shmobile: bockw-reference: Initialise SCIF device using DT
  ARM: shmobile: r8a7778: Add SCIF nodes
  ARM: shmobile: sh73a0: add SCI clock support for DT
  ARM: shmobile: r8a7740: correct SCI clock support for DT
  ARM: shmobile: r8a73a4: add SCI clock support for DT
  ARM: shmobile: r8a7778: add SCI clock support for DT
  ARM: shmobile: r8a7790: lager: use iic cores instead of i2c
  ARM: shmobile: Lager: Correct I2C bus for VDD MPU regulator
  ARM: shmobile: kzm9g-reference: Remove early_printk from command line
  ARM: shmobile: armadillo800eva-reference: Remove early_printk from command line
  ARM: shmobile: r8a7779: Consistently use tabs for indentation
  ARM: shmobile: henninger: Consistently use tabs for indentation
  ARM: shmobile: henninger: enable internal PCI
  ARM: shmobile: koelsch: enable internal PCI
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-18 21:39:29 -07:00
Olof Johansson
9b03c6041c Merge tag 'renesas-clock2-for-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc
Merge "Second Round of Renesas ARM Based SoC Clock Updates for v3.17" from
Simon Horman:

- Add legacy clocks for SCI for SoCs that do not yet have CCF support.
  This is to allow SCI (serial) devices to be enabled using DT and
  will be removed after CCF support is added for each SoC.

* tag 'renesas-clock2-for-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: sh73a0: add SCI clock support for DT
  ARM: shmobile: r8a7740: correct SCI clock support for DT
  ARM: shmobile: r8a73a4: add SCI clock support for DT
  ARM: shmobile: r8a7778: add SCI clock support for DT

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-18 21:30:26 -07:00
Tomasz Figa
9637f30e6b ARM: EXYNOS: Fix core ID used by platsmp and hotplug code
When CPU topology is specified in device tree, cpu_logical_map() does
not return core ID anymore, but rather full MPIDR value. This breaks
existing calculation of PMU register offsets on Exynos SoCs.

This patch fixes the problem by adjusting the code to use only core ID
bits of the value returned by cpu_logical_map() to allow CPU topology to
be specified in device tree on Exynos SoCs.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-18 17:12:57 -07:00
Olof Johansson
e5c6cac6e3 Merge tag 'imx-fixes-3.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes
Merge "ARM: imx: fixes for 3.16, 2nd take" from Shawn Guo:

The i.MX fixes for 3.16, 2nd take:

It fixes a hard machine hang regression for boards where only pcie is
active but no sata, as the latest imx6-pcie driver is no longer enabling
the upstream clock directly but only lvds clk out.

* tag 'imx-fixes-3.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: clk-imx6q: parent lvds_sel input from upstream clock gates

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-18 14:40:17 -07:00
Olof Johansson
054388947c Merge tag 'at91-fixes' of git://github.com/at91linux/linux-at91 into fixes
Merge "at91: fixes for 3.16 #2" from Nicolas Ferre:

Second AT91 fixes series for 3.16
- fix clock definitions after the move to CCF for:
  * at91sam9n12 (ohci)
  * at91sam9x5 (ohci, pwm)

* tag 'at91-fixes' of git://github.com/at91linux/linux-at91:
  ARM: at91/dt: add missing clocks property to pwm node in sam9x5.dtsi
  ARM: at91/dt: fix usb0 clocks definition in sam9n12 dtsi
  ARM: at91: at91sam9x5: correct typo error for ohci clock

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-18 14:39:18 -07:00
Olof Johansson
81cca645b6 Merge tag 'mvebu-fixes-3.16-3' of git://git.infradead.org/linux-mvebu into fixes
Merge "mvebu fixes for v3.16 (round 3)" from Jason Cooper:

 - Fix SMP boot on 38x/375 in big endian
 - Fix operand list for pmsu on 370/XP
 - Fix coherency bus notifiers

* tag 'mvebu-fixes-3.16-3' of git://git.infradead.org/linux-mvebu:
  ARM: mvebu: Fix coherency bus notifiers by using separate notifiers
  ARM: mvebu: Fix the operand list in the inline asm of armada_370_xp_pmsu_idle_enter
  ARM: mvebu: fix SMP boot for Armada 38x and Armada 375 Z1 in big endian

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-18 14:38:28 -07:00
Jason Cooper
20c0c60760 Merge tag 'tags/deps-irqchip-gic-3.17' into irqchip/core
From local branch irqchip/gic, this is topic branch that was set up to
facilitate merging other changes depending on the new GICv3 driver.
2014-07-18 20:56:39 +00:00
Maxime Ripard
c220aec2bb ARM: dts: sun6i: Add Merrii A31 Hummingbird support
This adds support for the A31 Hummingbird:
http://www.merrii.com/en/pla_d.asp?id=172

The Merrii A31 Hummingbird is a development board based on the
Allwinner A31 SoC with multiple USB ports through a USB hub chip,
a uSD slot, a 10/100/1000M ethernet port, an AP6210 WiFi/BT chip,
TV-in, HDMI, VGA, audio in/out ports, and LCD/CSI headers.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
[wens@csie.org: enable usbphy, ehci0, ohci0 for on-board usb hub;
 add pcf8563 rtc node; add comments for i2c0 and mmc0 pull-ups;
 correct ethernet phy address to 0x01; drop uart2 (BT chip has
 no power) and uart3 (no device); use proper commit message]
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
2014-07-18 22:40:37 +02:00
Chen-Yu Tsai
e5073fde6b ARM: dts: sun6i: Add ethernet alias for GMAC
Alias GMAC as ethernet0 so U-boot can fill in the MAC address.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-07-18 22:36:54 +02:00
Chen-Yu Tsai
3dca65f8a6 ARM: dts: sun6i: Add A31 GMAC gigabit ethernet controller node
The A31 has the same GMAC found on the A20 SoC, except it has
an extra reset control.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-07-18 22:36:49 +02:00
Chen-Yu Tsai
ed29861ae8 ARM: dts: sun6i: Add GMAC clock node to the A31 dtsi
The GMAC uses 1 of 2 sources for its transmit clock, depending on the
PHY interface mode. Add both sources as dummy clocks, and as parents
to the GMAC clock node.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-07-18 22:36:29 +02:00
Chen-Yu Tsai
ee39a3e308 ARM: dts: sun6i: Add pin muxing options for GMAC
The A31 SoC has a GMAC gigabit ethernet controller supporting
MII, GMII, RGMII modes. Add pin muxing options for these modes.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-07-18 22:35:56 +02:00
Ard Biesheuvel
99a5603e2a efi/arm64: Handle missing virtual mapping for UEFI System Table
If we cannot resolve the virtual address of the UEFI System Table, its
physical offset must be missing from the virtual memory map, and there
is really no point in proceeding with installing the virtual memory map
and the runtime services dispatch table. So back out gracefully.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Mark Salter <msalter@redhat.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2014-07-18 21:24:04 +01:00
Daniel Kiper
c7341d6a61 arch/x86/xen: Silence compiler warnings
Compiler complains in the following way when x86 32-bit kernel
with Xen support is build:

  CC      arch/x86/xen/enlighten.o
arch/x86/xen/enlighten.c: In function ‘xen_start_kernel’:
arch/x86/xen/enlighten.c:1726:3: warning: right shift count >= width of type [enabled by default]

Such line contains following EFI initialization code:

boot_params.efi_info.efi_systab_hi = (__u32)(__pa(efi_systab_xen) >> 32);

There is no issue if x86 64-bit kernel is build. However, 32-bit case
generate warning (even if that code will not be executed because Xen
does not work on 32-bit EFI platforms) due to __pa() returning unsigned long
type which has 32-bits width. So move whole EFI initialization stuff
to separate function and build it conditionally to avoid above mentioned
warning on x86 32-bit architecture.

Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>
Reviewed-by: Konrad Rzeszutek Wilk <Konrad.wilk@oracle.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2014-07-18 21:24:03 +01:00
Michael Brown
aeffc4928e x86/efi: Request desired alignment via the PE/COFF headers
The EFI boot stub goes to great pains to relocate the kernel image to
an appropriately aligned address, as indicated by the ->kernel_alignment
field in the bzImage header.  However, for the PE stub entry case, we
can request that the EFI PE/COFF loader do the work for us.

Fix by exposing the desired alignment via the SectionAlignment field
in the PE/COFF headers.  Despite its name, this field provides an
overall alignment requirement for the loaded file.  (Naturally, the
FileAlignment field describes the alignment for individual sections.)

There is no way in the PE/COFF headers to express the concept of
min_alignment; we therefore do not expose the minimum (as opposed to
preferred) alignment.

Signed-off-by: Michael Brown <mbrown@fensystems.co.uk>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2014-07-18 21:24:02 +01:00
Ulf Winkelvos
fb86b2440d x86/efi: Add better error logging to EFI boot stub
Hopefully this will enable us to better debug:
https://bugzilla.kernel.org/show_bug.cgi?id=68761

Signed-off-by: Ulf Winkelvos <ulf@winkelvos.de>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2014-07-18 21:24:01 +01:00
Daniel Kiper
f383d00a0d arch/x86: Remove efi_set_rtc_mmss()
efi_set_rtc_mmss() is never used to set RTC due to bugs found
on many EFI platforms. It is set directly by mach_set_rtc_mmss().
Hence, remove unused efi_set_rtc_mmss() function.

Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2014-07-18 21:23:59 +01:00
Daniel Kiper
9402973d49 arch/x86: Replace plain strings with constants
We've got constants, so let's use them instead of hard-coded values.

Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2014-07-18 21:23:59 +01:00
Daniel Kiper
be81c8a1da xen: Put EFI machinery in place
This patch enables EFI usage under Xen dom0. Standard EFI Linux
Kernel infrastructure cannot be used because it requires direct
access to EFI data and code. However, in dom0 case it is not possible
because above mentioned EFI stuff is fully owned and controlled
by Xen hypervisor. In this case all calls from dom0 to EFI must
be requested via special hypercall which in turn executes relevant
EFI code in behalf of dom0.

When dom0 kernel boots it checks for EFI availability on a machine.
If it is detected then artificial EFI system table is filled.
Native EFI callas are replaced by functions which mimics them
by calling relevant hypercall. Later pointer to EFI system table
is passed to standard EFI machinery and it continues EFI subsystem
initialization taking into account that there is no direct access
to EFI boot services, runtime, tables, structures, etc. After that
system runs as usual.

This patch is based on Jan Beulich and Tang Liang work.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Tang Liang <liang.tang@oracle.com>
Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2014-07-18 21:23:58 +01:00
Daniel Kiper
0fe376e18f arch/x86: Remove redundant set_bit(EFI_MEMMAP) call
Remove redundant set_bit(EFI_MEMMAP, &efi.flags) call.
It is executed earlier in efi_memmap_init().

Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2014-07-18 21:23:57 +01:00
Daniel Kiper
9f2adfd8a9 arch/x86: Remove redundant set_bit(EFI_SYSTEM_TABLES) call
Remove redundant set_bit(EFI_SYSTEM_TABLES, &efi.flags) call.
It is executed earlier in efi_systab_init().

Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2014-07-18 21:23:56 +01:00
Daniel Kiper
9f27bc543b efi: Introduce EFI_PARAVIRT flag
Introduce EFI_PARAVIRT flag. If it is set then kernel runs
on EFI platform but it has not direct control on EFI stuff
like EFI runtime, tables, structures, etc. If not this means
that Linux Kernel has direct access to EFI infrastructure
and everything runs as usual.

This functionality is used in Xen dom0 because hypervisor
has full control on EFI stuff and all calls from dom0 to
EFI must be requested via special hypercall which in turn
executes relevant EFI code in behalf of dom0.

Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2014-07-18 21:23:55 +01:00
Daniel Kiper
67a9b9c53c arch/x86: Do not access EFI memory map if it is not available
Do not access EFI memory map if it is not available. At least
Xen dom0 EFI implementation does not have an access to it.

Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2014-07-18 21:23:54 +01:00
Daniel Kiper
abc93f8eb6 efi: Use early_mem*() instead of early_io*()
Use early_mem*() instead of early_io*() because all mapped EFI regions
are memory (usually RAM but they could also be ROM, EPROM, EEPROM, flash,
etc.) not I/O regions. Additionally, I/O family calls do not work correctly
under Xen in our case. early_ioremap() skips the PFN to MFN conversion
when building the PTE. Using it for memory will attempt to map the wrong
machine frame. However, all artificial EFI structures created under Xen
live in dom0 memory and should be mapped/unmapped using early_mem*() family
calls which map domain memory.

Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Mark Salter <msalter@redhat.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2014-07-18 21:23:54 +01:00
Daniel Kiper
4fa62481e2 arch/ia64: Define early_memunmap()
This is odd to use early_iounmap() function do tear down mapping
created by early_memremap() function, even if it works right now,
because they belong to different set of functions. The former is
I/O related function and the later is memory related. So, create
early_memunmap() macro which in real is early_iounmap(). This
thing will help to not confuse code readers longer by mixing
functions from different classes.

EFI patches following this patch uses that functionality.

Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2014-07-18 21:23:53 +01:00