Commit Graph

262 Commits

Author SHA1 Message Date
Alexandre Belloni f0979987c9 ARM: at91: Documentation: add armv7m families
The Atmel sams70, samv70 and samv71 are Cortex-M7 based MCUs that can run
Linux (without MMU).

Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2017-06-02 10:11:09 +02:00
Linus Torvalds 8d648aad05 ARM: SoC platform updates
SoC platform changes (arch/arm/mach-*). This merge window, the bulk is
 for a few platforms:
 
 * Gemini:
  - Legacy platform that Linus Walleij has converted to multiplatform
    and DT, so a handful of various tweaks there, removal of some old
    stale support, etc.
 
 * Atmel AT91:
  - Fixup of various power management related pieces
  - Move of SoC detection to a drivers/soc driver instead
 
 * ST Micro STM32:
  - New SoC support: STM32H743
 
 * TI platforms:
  - More driver support for Davinci (SATA in particular)
  - Removal of some old stale hwmod files (linkspace platform)
 
 * Misc:
  - A couple of smaller patches for i.MX, sunxi, hisi
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform updates from Olof Johansson:
 "SoC platform changes (arch/arm/mach-*). This merge window, the bulk is
  for a few platforms:

  Gemini:
   - Legacy platform that Linus Walleij has converted to multiplatform
     and DT, so a handful of various tweaks there, removal of some old
     stale support, etc.

  Atmel AT91:
   - Fixup of various power management related pieces
   - Move of SoC detection to a drivers/soc driver instead

  ST Micro STM32:
   - New SoC support: STM32H743

  TI platforms:
   - More driver support for Davinci (SATA in particular)
   - Removal of some old stale hwmod files (linkspace platform)

  Misc:
   - A couple of smaller patches for i.MX, sunxi, hisi"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (57 commits)
  ARM: davinci: Add clock for CPPI 4.1 DMA engine
  ARM: mxs: add support for I2SE Duckbill 2 boards
  MAINTAINERS: Update the Allwinner sunXi entry
  ARM: i.MX25: globally disable supervisor protect
  ARM: at91: move SoC detection to its own driver
  ARM: at91: pm: correct typo
  ARM: at91: pm: Remove at91_pm_set_standby
  ARM: at91: pm: Merge all at91sam9*_pm_init
  ARM: at91: pm: Tie the USB clock mask to the pmc
  ARM: at91: pm: Tie the memory controller type to the ramc id
  ARM: at91: pm: Workaround DDRSDRC self-refresh bug with LPDDR1 memories.
  ARM: at91: pm: Simplify at91rm9200_standby
  ARM: at91: pm: Use struct at91_pm_data in pm_suspend.S
  ARM: at91: pm: Move global variables into at91_pm_data
  ARM: at91: pm: Move at91_ramc_read/write to pm.c
  ARM: at91: pm: Cleanup headers
  MAINTAINERS: Add memory drivers to AT91 entry
  MAINTAINERS: Update AT91 entry
  ARM: davinci: add pata_bk3710 libata driver support
  ARM: OMAP2+: mark omap_init_rng as __init
  ...
2017-05-09 09:49:36 -07:00
Perr Zhang 7c2a3e9448 arm: Documentation: update a path name
the path in the example cmd is out of date, and the path for now
is also mentioned in the same file

Signed-off-by: Perr Zhang <strongbox8@zoho.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-20 14:06:55 -06:00
Alexandre TORGUE c6ed0f31ce ARM: stm32: Add a new SOC - STM32H743
The STM32H743 is a Cortex-M7 MCU running at 400MHz and containing 1MBytes
internal RAM.

Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
2017-03-24 11:37:24 +01:00
Icenowy Zheng b074fede01 arm: sunxi: add support for V3s SoC
Allwinner V3s is a low-end single-core Cortex-A7 SoC, with 64MB
integrated DRAM, and several peripherals.

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-01-20 21:31:34 +01:00
Icenowy Zheng 16fa9629c4 ARM: sunxi: add support for H2+ SoC
Allwinner H2+ is a quad-core Cortex-A7 SoC.

It is very like H3, that they share the same SoC ID (0x1680), and H3
memory maps as well as drivers works well on the SoC.

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-01-02 22:25:32 +01:00
Linus Torvalds e79ab194d1 ARM: SoC platform updates for v4.10
These are updates for platform specific code on 32-bit ARM machines,
 essentially anything that can not (yet) be expressed using DT files.
 
 Noteworthy changes include:
 
 - Added support for the TI DRA71x family of SoCs in mach-omap2,
   this is an new variant of the the DRA72x/DRA74x automotive
   infotainment chips we already supported for a while.
 
 - Added support for the ST STM32F746 SoC, the first Cortex-M7
   based microcontroller we support, related to the smaller
   STM32F4 family.
 
 - Renesas adds support for r8a7743 and r8a7745 in mach-shmobile,
   see http://elinux.org/RZ-G
 
 - SMP is now supported on the OX820 platform
 
 - A lot of code in mach-omap2 gets removed as a follow-up to
   removing support for board files in the previous release
 
 - Davinci has some new work to improve USB support
 
 - For i.MX, the performance monitor now supports profiling the
   memory controller using 'perf'
 
 Conflicts:
 arch/arm/mach-shmobile/setup-rcar-gen2.c: rcar_gen2_clocks_init()
 is gone, calling of_clk_init(NULL) is sufficient now.
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform updates from Arnd Bergmann:
 "These are updates for platform specific code on 32-bit ARM machines,
  essentially anything that can not (yet) be expressed using DT files.

  Noteworthy changes include:

   - Added support for the TI DRA71x family of SoCs in mach-omap2, this
     is an new variant of the the DRA72x/DRA74x automotive infotainment
     chips we already supported for a while.

   - Added support for the ST STM32F746 SoC, the first Cortex-M7 based
     microcontroller we support, related to the smaller STM32F4 family.

   - Renesas adds support for r8a7743 and r8a7745 in mach-shmobile, see
     http://elinux.org/RZ-G

   - SMP is now supported on the OX820 platform

   - A lot of code in mach-omap2 gets removed as a follow-up to removing
     support for board files in the previous release

   - Davinci has some new work to improve USB support

   - For i.MX, the performance monitor now supports profiling the memory
     controller using 'perf'"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (95 commits)
  ARM: davinci: da830-evm: use gpio descriptor for mmc pins
  ARM: davinci: da850-evm: use gpio descriptor for mmc pins
  ARM: davinci: hawk: use gpio descriptor for mmc pins
  ARM: ARTPEC-6: add select MFD_SYSCON to MACH_ARTPEC6
  ARM: davinci: da8xx: Fix ohci device name
  ARM: oxnas: Add OX820 config and makefile entry
  ARM: oxnas: Add OX820 SMP support
  ARM: davinci: PM: fix build when da850 not compiled in
  ARM: orion5x: remove legacy support of ls-chl
  ARM: integrator: drop EBI access use syscon
  ARM: BCM5301X: Add back handler ignoring external imprecise aborts
  ARM: davinci: PM: support da8xx DT platforms
  ARM: davinci: PM: cleanup: remove references to pdata
  ARM: davinci: PM: rework init, remove platform device
  ARM: Kconfig: Introduce MACH_STM32F746 flag
  ARM: mach-stm32: Add a new SOC - STM32F746
  ARM: shmobile: document SK-RZG1E board
  ARM: shmobile: r8a7745: basic SoC support
  ARM: imx: mach-imx6ul: add imx6ull support
  ARM: zynq: Reserve correct amount of non-DMA RAM
  ...
2016-12-15 15:39:02 -08:00
Alexandre TORGUE a77e393c32 ARM: mach-stm32: Add a new SOC - STM32F746
Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
2016-11-15 12:02:33 +01:00
Mauro Carvalho Chehab 8c27ceff36 docs: fix locations of several documents that got moved
The previous patch renamed several files that are cross-referenced
along the Kernel documentation. Adjust the links to point to
the right places.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-24 08:12:35 -02:00
Linus Torvalds 5d89d9f502 linux-kselftest-4.9-rc1-update
This update consists of:
 
 - Fixes and improvements to existing tests
 - Moving code from Documentation to selftests, samples, and tools.
 
   Moves dnotify_test, prctl, ptp, vDSO, ia64, watchdog, and networking
   tests from Documentation to selftests.
 
   Moves mic/mpssd, misc-devices/mei, timers, watchdog, auxdisplay, and
   blackfin examples from Documentation to samples.
 
   Moves accounting, laptops/dslm, and pcmcia/crc32hash tools from
   Documentation to tools.
 
   Deletes BUILD_DOCSRC and its dependencies.
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Merge tag 'linux-kselftest-4.9-rc1-update' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest updates from Shuah Khan:
 "This update consists of:

   - Fixes and improvements to existing tests

   - Moving code from Documentation to selftests, samples, and tools:

     * Moves dnotify_test, prctl, ptp, vDSO, ia64, watchdog, and
       networking tests from Documentation to selftests.

     * Moves mic/mpssd, misc-devices/mei, timers, watchdog, auxdisplay,
       and blackfin examples from Documentation to samples.

     * Moves accounting, laptops/dslm, and pcmcia/crc32hash tools from
       Documentation to tools.

     * Deletes BUILD_DOCSRC and its dependencies"

* tag 'linux-kselftest-4.9-rc1-update' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (21 commits)
  selftests/futex: Check ANSI terminal color support
  Doc: update 00-INDEX files to reflect the runnable code move
  samples: move blackfin gptimers-example from Documentation
  tools: move pcmcia crc32hash tool from Documentation
  tools: move laptops dslm tool from Documentation
  tools: move accounting tool from Documentation
  samples: move auxdisplay example code from Documentation
  samples: move watchdog example code from Documentation
  samples: move timers example code from Documentation
  samples: move misc-devices/mei example code from Documentation
  samples: move mic/mpssd example code from Documentation
  selftests: Move networking/timestamping from Documentation
  selftests: move watchdog tests from Documentation/watchdog
  selftests: move ia64 tests from Documentation/ia64
  selftests: move vDSO tests from Documentation/vDSO
  selftests: move ptp tests from Documentation/ptp
  selftests: move prctl tests from Documentation/prctl
  selftests: move dnotify_test from Documentation/filesystems
  selftests/timers: Add missing error code assignment before test
  selftests/zram: replace ZRAM_LZ4_COMPRESS
  ...
2016-10-14 15:17:12 -07:00
Shuah Khan f59c668c0b Doc: update 00-INDEX files to reflect the runnable code move
Update 00-INDEX files with the current file list to reflect the runnable
code move.

Acked-by: Michal Marek <mmarek@suse.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2016-10-10 07:12:09 -06:00
Linus Torvalds 66f2c6d952 ARM: SoC platform updates for v4.9
These are updates for platform specific code on 32-bit ARM machines,
 essentially anything that can not (yet) be expressed using DT files.
 
 Noteworthy changes include:
 
 - We get support for running in big-endian mode on two platforms:
   sunxi (Allwinner) and s3c24xx (old Samsung).
 
 - The recently added Uniphier platform now uses standard PSCI
   methods for SMP booting and we remove support for old bootloader
   versions that did not support it yet.
 
 - In sunxi, we gain support for the "Nextthing GR8" SoC, which
   is a close relative of the Allwinner A13 and R8 chips.
 
 - PXA completes its move over to the generic dmaengine framework
   and removes its old private API
 
 - mach-bcm gains support for BCM47189/BCM53573, their first ARM
   SoC with integrated 802.11ac wireless networking.
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform updates from Arnd Bergmann:
 "These are updates for platform specific code on 32-bit ARM machines,
  essentially anything that can not (yet) be expressed using DT files.

  Noteworthy changes include:

   - We get support for running in big-endian mode on two platforms:
     sunxi (Allwinner) and s3c24xx (old Samsung).

   - The recently added Uniphier platform now uses standard PSCI methods
     for SMP booting and we remove support for old bootloader versions
     that did not support it yet.

   - In sunxi, we gain support for the "Nextthing GR8" SoC, which is a
     close relative of the Allwinner A13 and R8 chips.

   - PXA completes its move over to the generic dmaengine framework and
     removes its old private API

   - mach-bcm gains support for BCM47189/BCM53573, their first ARM SoC
     with integrated 802.11ac wireless networking"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (54 commits)
  ARM: imx legacy: pca100: move peripheral initialization to .init_late
  ARM: imx legacy: mx27ads: move peripheral initialization to .init_late
  ARM: imx legacy: mx21ads: move peripheral initialization to .init_late
  ARM: imx legacy: pcm043: move peripheral initialization to .init_late
  ARM: imx legacy: mx35-3ds: move peripheral initialization to .init_late
  ARM: imx legacy: mx27-3ds: move peripheral initialization to .init_late
  ARM: imx legacy: imx27-visstrim-m10: move peripheral initialization to .init_late
  ARM: imx legacy: vpr200: move peripheral initialization to .init_late
  ARM: imx legacy: mx31moboard: move peripheral initialization to .init_late
  ARM: imx legacy: armadillo5x0: move peripheral initialization to .init_late
  ARM: imx legacy: qong: move peripheral initialization to .init_late
  ARM: imx legacy: mx31-3ds: move peripheral initialization to .init_late
  ARM: imx legacy: pcm037: move peripheral initialization to .init_late
  ARM: imx legacy: mx31lilly: move peripheral initialization to .init_late
  ARM: imx legacy: mx31ads: move peripheral initialization to .init_late
  ARM: imx legacy: mx31lite: move peripheral initialization to .init_late
  ARM: imx legacy: kzm: move peripheral initialization to .init_late
  MAINTAINERS: update list of Oxnas maintainers
  ARM: orion5x: remove extraneous NO_IRQ
  ARM: orion: simplify orion_ge00_switch_init
  ...
2016-10-07 21:18:42 -07:00
Linus Torvalds 02bafd96f3 This is the documentation update pull for the 4.9 merge window.
The Sphinx transition is still creating a fair amount of work.  Here we
 have a number of fixes and, importantly, a proper PDF output solution,
 thanks to Jani Nikula, Mauro Carvalho Chehab and Markus Heiser.
 
 I've started a couple of new books: a driver API book (based on the old
 device-drivers.tmpl) and a development tools book.  Both are meant to show
 how we can integrate together our existing documentation into a more
 coherent and accessible whole.  It involves moving some stuff around and
 formatting changes, but, I think, the results are worth it.  The good news
 is that most of our existing Documentation/*.txt files are *almost* in RST
 format already; the amount of messing around required is minimal.
 
 And, of course, there's the usual set of updates, typo fixes, and more.
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Merge tag 'docs-4.9' of git://git.lwn.net/linux

Pull documentation updates from Jonathan Corbet:
 "This is the documentation update pull for the 4.9 merge window.

  The Sphinx transition is still creating a fair amount of work. Here we
  have a number of fixes and, importantly, a proper PDF output solution,
  thanks to Jani Nikula, Mauro Carvalho Chehab and Markus Heiser.

  I've started a couple of new books: a driver API book (based on the
  old device-drivers.tmpl) and a development tools book. Both are meant
  to show how we can integrate together our existing documentation into
  a more coherent and accessible whole. It involves moving some stuff
  around and formatting changes, but, I think, the results are worth it.
  The good news is that most of our existing Documentation/*.txt files
  are *almost* in RST format already; the amount of messing around
  required is minimal.

  And, of course, there's the usual set of updates, typo fixes, and
  more"

* tag 'docs-4.9' of git://git.lwn.net/linux: (120 commits)
  URL changed for Linux Foundation TAB
  dax : Fix documentation with respect to struct pages
  iio: Documentation: Correct the path used to create triggers.
  docs: Remove space-before-label guidance from CodingStyle
  docs-rst: add inter-document cross references
  Documentation/email-clients.txt: convert it to ReST markup
  Documentation/kernel-docs.txt: reorder based on timestamp
  Documentation/kernel-docs.txt: Add dates for online docs
  Documentation/kernel-docs.txt: get rid of broken docs
  Documentation/kernel-docs.txt: move in-kernel docs
  Documentation/kernel-docs.txt: remove more legacy references
  Documentation/kernel-docs.txt: add two published books
  Documentation/kernel-docs.txt: sort books per publication date
  Documentation/kernel-docs.txt: adjust LDD references
  Documentation/kernel-docs.txt: some improvements on the ReST output
  Documentation/kernel-docs.txt: Consistent indenting: 4 spaces
  Documentation/kernel-docs.txt: Add 4 paper/book references
  Documentation/kernel-docs.txt: Improve layouting of book list
  Documentation/kernel-docs.txt: Remove offline or outdated entries
  docs: Clean up bare :: lines
  ...
2016-10-04 13:54:07 -07:00
Maxime Ripard c1efda1238 ARM: sunxi: Support the Nextthing GR8
The GR8 is an SoC made by Nextthing Co, loosely based on the sun5i family.

It has a number of new controllers compared to the A10s and A13 (SPDIF, I2S),
but some controllers missing too (Ethernet, less I2C, less UARTs).

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2016-09-08 14:32:23 +02:00
Icenowy Zheng 00445edff3 Documentation: sunxi: Update Allwinner SoC documentation
Now, the A83T and A64 SoC user manuals are available.
Update the documentation to add the links.

An updated version of A83T datasheet is also included now.

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-08-18 11:23:47 -06:00
Pawel Moll 90d11e267a bus: arm-ccn: Correct required arguments for XP PMU events
XP can provide events from two sources: watchpoints, observing traffic
on device ports and PMU looking at internal buses.

Unfortunately the sysfs definition of the PMU events was requiring
port number (instead of bus number) and direction (the buses are
unidirectional), as these fields were shared with the watchpoint event.

Although it does not introduce a major problem (port can be used as
bus alias and direction is simply ignored for XP PMU events), it's
better to fix it now, before external tools start depending on this
behaviour.

Signed-off-by: Pawel Moll <pawel.moll@arm.com>
2016-08-17 11:42:40 +01:00
Nicolas Ferre b2f8c3d5e2 ARM: at91: Documentation: update the sama5d2 entry
Update the Atmel SoC entry for SAMA5D2 with all the product variants. Add the
datasheet web link, now that it's available, for instant access to full product
documentation.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-06-21 17:09:34 +02:00
Kees Cook 08559657b2 Documentation: fix common spelling mistakes
This fixes several spelling mistakes in the Documentation/ tree, which
are caught by checkpatch.pl's spell checking.

Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-04-28 07:51:59 -06:00
Linus Torvalds 8c6d4082fc ARM: SoC 64-bit changes for v4.6
Here's our branch of ARM64 contents for this merge window, now
 containing all ARM64 changes other than device tree files.
 
 - Various new platforms get added
   - Allwinner A64 SoC
   - Annapurna Labs Alpine SoCs
   - Broadcom Vulcan
   - Marvell Armada 3700 SoCs
   - Amlogic S905
 
 - Various defconfig changes to enable platform specific drivers
 
 This branch includes the clk git tree to resolve a build-time
 dependency.
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Merge tag 'armsoc-arm64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC 64-bit changes from Arnd Bergmann:
 "Here's our branch of ARM64 contents for this merge window, now
  containing all ARM64 changes other than device tree files.

   - Various new platforms get added:
      * Allwinner A64 SoC
      * Annapurna Labs Alpine SoCs
      * Broadcom Vulcan
      * Marvell Armada 3700 SoCs
      * Amlogic S905

   - Various defconfig changes to enable platform specific drivers

  This branch includes the clk git tree to resolve a build-time
  dependency"

* tag 'armsoc-arm64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (48 commits)
  arm64: defconfig: Increase MMC_BLOCK_MINORS to 16
  arm64: defconfig: Add Qualcomm sdhci and restart functionality
  ARM64: Enable Amlogic Meson GXBaby platform
  arm64: defconfig: Enable Samsung MFD and related configs
  arm64: alpine: select the Alpine MSI controller driver
  arm64: defconfig: enable the Alpine family
  arm64: add Alpine SoC family
  arm64: defconfig: Enable exynos thermal config
  arm64: add defconfig options for Allwinner SoCs
  arm64: defconfig: Enable DesignWare APB GPIO controller
  arm64: defconfig: Add Renesas R-Car Gen3 USB 2.0 phy driver support
  arm64: EXYNOS: Consolidate ARCH_EXYNOS7 symbol into ARCH_EXYNOS
  clk: samsung: Don't build ARMv8 clock drivers on ARMv7
  MAINTAINERS: Add entry for Broadcom Vulcan SoC
  arm64: cputype info for Broadcom Vulcan
  arm64: Broadcom Vulcan support
  arm64: defconfig: Add Broadcom Vulcan to defconfig
  arm64: update ARCH_MVEBU for Marvell Armada 7K/8K support
  Documentation: arm: add Marvell Armada 7K and 8K families
  Documentation: arm: add link to Armada 38x Functional Spec
  ...
2016-03-20 15:08:45 -07:00
Linus Torvalds 33b3d2e88c ARM: SoC platform updates for v4.6
Newly added support for additional SoCs:
 
 - Axis Artpec-6 SoC family
 - Allwinner A83T SoC
 - Mediatek MT7623
 - NXP i.MX6QP SoC
 - ST Microelectronics stm32f469 microcontroller
 
 New features:
 - SMP support for Mediatek mt2701
 - Big-endian support for NXP i.MX
 - DaVinci now uses the new DMA engine dma_slave_map
 - OMAP now uses the new DMA engine dma_slave_map
 - earlyprintk support for palmchip uart on mach-tango
 - delay timer support for orion
 
 Other:
 - Exynos PMU driver moved out to drivers/soc/
 - Various smaller updates for Renesas, Xilinx, PXA, AT91, OMAP, uniphier
 -----BEGIN PGP SIGNATURE-----
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform updates from Arnd Bergmann:
 "Newly added support for additional SoCs:
   - Axis Artpec-6 SoC family
   - Allwinner A83T SoC
   - Mediatek MT7623
   - NXP i.MX6QP SoC
   - ST Microelectronics stm32f469 microcontroller

  New features:
   - SMP support for Mediatek mt2701
   - Big-endian support for NXP i.MX
   - DaVinci now uses the new DMA engine dma_slave_map
   - OMAP now uses the new DMA engine dma_slave_map
   - earlyprintk support for palmchip uart on mach-tango
   - delay timer support for orion

  Other:
   - Exynos PMU driver moved out to drivers/soc/
   - Various smaller updates for Renesas, Xilinx, PXA, AT91, OMAP,
     uniphier"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (83 commits)
  ARM: uniphier: rework SMP code to support new System Bus binding
  ARM: uniphier: add missing of_node_put()
  ARM: at91: avoid defining CONFIG_* symbols in source code
  ARM: DRA7: hwmod: Add data for eDMA tpcc, tptc0, tptc1
  ARM: imx: Make reset_control_ops const
  ARM: imx: Do L2 errata only if the L2 cache isn't enabled
  ARM: imx: select ARM_CPU_SUSPEND only for imx6
  dmaengine: pxa_dma: fix the maximum requestor line
  ARM: alpine: select the Alpine MSI controller driver
  ARM: pxa: add the number of DMA requestor lines
  dmaengine: mmp-pdma: add number of requestors
  dma: mmp_pdma: Add the #dma-requests DT property documentation
  ARM: OMAP2+: Add rtc hwmod configuration for ti81xx
  ARM: s3c24xx: Avoid warning for inb/outb
  ARM: zynq: Move early printk virtual address to vmalloc area
  ARM: DRA7: hwmod: Add custom reset handler for PCIeSS
  ARM: SAMSUNG: Remove unused register offset definition
  ARM: EXYNOS: Cleanup header files inclusion
  drivers: soc: samsung: Enable COMPILE_TEST
  MAINTAINERS: Add maintainers entry for drivers/soc/samsung
  ...
2016-03-20 14:57:08 -07:00
Thomas Petazzoni 1d0029cb36 Documentation: arm: add Marvell Armada 7K and 8K families
As we are adding support for the Armada 7K and 8K families, this
commit adds them to the Marvell documentation listing all supported
SoCs, together with references to their Product Brief, Homepage and
Device Tree files.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-02-19 14:07:54 +01:00
Thomas Petazzoni c44fdc3bf4 Documentation: arm: add link to Armada 38x Functional Spec
The Armada 38x Functional Spec is now available (after registration
unfortunately), so add a link to it.

While at it, fix a typo in the reference to the Armada 38x product
page.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-02-19 14:07:34 +01:00
Thomas Petazzoni e737acd6ba Documentation: arm: improve Armada 37xx description
In preparation to the introduction of other SoCs in the ARMv8 Armada
EBU family, this commit tweaks the existing description of Armada 37xx
by making the core, homepage and other informations be visible "under"
the Armada 37xx item. Indeed, the new SoCs will not share the same
core or homepage.

In addition, a link to the Product Brief is added.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-02-19 14:07:02 +01:00
Arnd Bergmann 2859f70a0c Documentation: arm: update Marvell product listing
I'm still getting confused regarding which core specifically
is used in which SoC, so I've added some more detail to the
Marvell README file. I got most of this from random sources
on the internet, so it's possible that some of the information
is wrong, but most of it should be pretty obvious.

There are a few remaining points I could not find out:

* The CPU core in Orion 88F6183
* The difference (if any) between PJ4B-MP and PJ4C
* The naming of Feroceon/Jolteon/Flareon/Sheeva/Mohawk/PJ1/PJ4
  is still confusing, as they tend to overlap.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[Thomas:
 - move Armada SP out from the EBU family into its own "Storage"
   family. This chip is indeed not part of the EBU family.
 - fixed the URL for the Armada SP information, since the link of the
   original patch no longer existed
 - explicitly indicate that there is no support in upstream for the
   Armada SP
 - indent the "Core: " description for the Armada XP to be clearly
   under the Armada XP category, so that it is clear it applies to
   Armada XP only, and not other cores of the EBU family.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-02-19 14:04:54 +01:00
Masanari Iida 510e64fb04 Doc: ARM: Fix a typo in clksrc-change-registers.awk
This patch fix a spelling typo found in clksrc-change-registers.awk.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-02-17 14:11:59 -07:00
Gregory CLEMENT a71916b027 Documentation: arm: update supported Marvell EBU processors
Now that we support Armada 37xx, let's add this family of SoC to the
Marvell documentation, and a reference to a link with more details about
those processors. As for Armda 39x, no datasheet is publicly
available at this time.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-02-17 16:23:19 +01:00
Vishnu Patekar 1425ec0f1c ARM: sunxi: Introduce Allwinner for A83T support
Allwinner A83T is octa-core cortex-a7 based SoC.
It's clock control unit and prcm, pinmux are different from previous sun8i
series.
Its processor cores are arragned in two clusters 4 cores each,
similar to A80.

Signed-off-by: Vishnu Patekar <vishnupatekar0510@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Chen-Yu Tsai <wens@csie.org>
[maxime: Removed the clock protection code]
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2016-02-05 07:54:08 +01:00
Linus Torvalds 6b5a12dbca ARM: SoC multiplatform code changes for v4.5
This branch is the culmination of 5 years of effort to bring the ARMv6
 and ARMv7 platforms together such that they can all be enabled and
 boot the same kernel. It has been a tremendous amount of cleanup and
 refactoring by a huge number of people, and creation of several new
 (and major) subsystems to better abstract out all the platform details
 in an appropriate manner.
 
 The bulk of this branch is a large patchset from Arnd that brings several
 of the more minor and older platforms we have closer to multiplatform
 support.  Among these are MMP, S3C64xx, Orion5x, mv78xx0 and realview
 Much of this is moving around header files from old mach directories,
 but there are also some cleanup patches of debug_ll (lowlevel debug
 per-platform options) and other parts.
 
 Linus Walleij also has some patchs to clean up the older ARM Realview
 platforms by finally introducing DT support, and Rob Herring has some
 for ARM Versatile which is now DT-only. Both of these platforms are
 now multiplatform.
 
 Finally, a couple of patches from Russell for Dove PMU, and a fix from
 Valentin Rothberg for Exynos ADC, which were rebased on top of the
 series to avoid conflicts.
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Merge tag 'armsoc-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC multiplatform code updates from Arnd Bergmann:
 "This branch is the culmination of 5 years of effort to bring the ARMv6
  and ARMv7 platforms together such that they can all be enabled and
  boot the same kernel.  It has been a tremendous amount of cleanup and
  refactoring by a huge number of people, and creation of several new
  (and major) subsystems to better abstract out all the platform details
  in an appropriate manner.

  The bulk of this branch is a large patchset from Arnd that brings
  several of the more minor and older platforms we have closer to
  multiplatform support.  Among these are MMP, S3C64xx, Orion5x, mv78xx0
  and realview Much of this is moving around header files from old mach
  directories, but there are also some cleanup patches of debug_ll
  (lowlevel debug per-platform options) and other parts.

  Linus Walleij also has some patchs to clean up the older ARM Realview
  platforms by finally introducing DT support, and Rob Herring has some
  for ARM Versatile which is now DT-only.  Both of these platforms are
  now multiplatform.

  Finally, a couple of patches from Russell for Dove PMU, and a fix from
  Valentin Rothberg for Exynos ADC, which were rebased on top of the
  series to avoid conflicts"

* tag 'armsoc-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (75 commits)
  ARM: realview: don't select SMP_ON_UP for UP builds
  ARM: s3c: simplify s3c_irqwake_{e,}intallow definition
  ARM: s3c64xx: fix pm-debug compilation
  iio: exynos-adc: fix irqf_oneshot.cocci warnings
  ARM: realview: build realview-dt SMP support only when used
  ARM: realview: select apropriate targets
  ARM: realview: clean up header files
  ARM: realview: make all header files local
  ARM: no longer make CPU targets visible separately
  ARM: integrator: use explicit core module options
  ARM: realview: enable multiplatform
  ARM: make default platform work for NOMMU
  ARM: debug-ll: move DEBUG_LL_UART_EFM32 to correct Kconfig location
  ARM: defconfig: use correct debug_ll settings
  ARM: versatile: convert to multi-platform
  ARM: versatile: merge mach code into a single file
  ARM: versatile: switch to DT only booting and remove legacy code
  ARM: versatile: add DT based PCI detection
  ARM: pxa: mark ezx structures as __maybe_unused
  ARM: pxa: mark raumfeld init functions as __maybe_unused
  ...
2016-01-20 18:03:56 -08:00
Linus Torvalds e535d74bc5 A relatively boring cycle in the docs tree. There's a few kernel-doc
fixes and various document tweaks.
 
 One patch reaches out of the documentation subtree to fix a comment in
 init/do_mounts_rd.c.  There didn't seem to be anybody more appropriate to
 take that one, so I accepted it.
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Merge tag 'docs-4.5' of git://git.lwn.net/linux

Pull documentation updates from Jon Corbet:
 "A relatively boring cycle in the docs tree.  There's a few kernel-doc
  fixes and various document tweaks.

  One patch reaches out of the documentation subtree to fix a comment in
  init/do_mounts_rd.c.  There didn't seem to be anybody more appropriate
  to take that one, so I accepted it"

* tag 'docs-4.5' of git://git.lwn.net/linux: (29 commits)
  thermal: add description for integral_cutoff unit
  Documentation: update libhugetlbfs site url
  Documentation: Explain pci=conf1,conf2 more verbosely
  DMA-API: fix confusing sentence in Documentation/DMA-API.txt
  Documentation: translations: update linux cross reference link
  Documentation: fix typo in CodingStyle
  init, Documentation: Remove ramdisk_blocksize mentions
  Documentation-getdelays: Apply a recommendation from "checkpatch.pl" in main()
  Documentation: HOWTO: update versions from 3.x to 4.x
  Documentation: remove outdated references from translations
  Doc: treewide: Fix grammar "a" to "an"
  Documentation: cpu-hotplug: Fix sysfs mount instructions
  can-doc: Add hint about getting timestamps
  Fix CFQ I/O scheduler parameter name in documentation
  Documentation: arm: remove dead links from Marvell Berlin docs
  Documentation: HOWTO: update code cross reference link
  Doc: Docbook/iio: Fix typo in iio.tmpl
  DocBook: make index.html generation less verbose by default
  DocBook: Cleanup: remove an unused $(call) line
  DocBook: Add a help message for DOCBOOKS env var
  ...
2016-01-17 11:55:07 -08:00
Tom Hebb 51af896be3 Documentation: arm: remove dead links from Marvell Berlin docs
The BG2 and BG2Q are no longer listed on Marvell's site, so the links in
the README go nowhere. The BG2Q's product brief has also been removed.

Signed-off-by: Thomas Hebb <tommyhebb@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-12-10 11:24:26 -07:00
Arnd Bergmann 4c25c5d298 ARM: pxa: make more mach/*.h files local
Lots of header files are never included outside of a mach-pxa
directory and do not need to be made visible in include/mach,
so let's just move them all down one level.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-12-01 21:52:50 +01:00
Murali Karicheri 17e846aa39 ARM: dts: keystone: k2l: fix kernel crash when clk_ignore_unused is not in bootargs
Currently kernel crash randomly when K2L EVM is booted without
clk_ignore_unused in the bootargs. This workaround is not needed
on other K2 devices such as K2HK and K2E and with this fix, we can
remove the workaround altogether. netcp driver on K2L uses linked
ram on OSR (On chip Static RAM) and requires the clock to this peripheral
enabled for proper functioning. This is the reason for the kernel crash.
So add the clock node to fix this issue.

While at it, remove the workaround documentation as well.

With the fix applied, clk_summary dump shows the clock to OSR enabled.

cat /sys/kernel/debug/clk/clk_summary
 ------cut--------------
   tcp3d-1                   0            0   399360000          0 0
   tcp3d-0                   0            0   399360000          0 0
   osr                       1            1   399360000          0 0
   fftc-0                    0            0   399360000          0 0
 -----cut----------------
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
2015-11-23 10:36:27 -08:00
Tom Hebb 32d79b023a Documentation: arm: remove hyphen from BG2Q in Marvell Berlin docs
The chip's design name isn't hyphenated anywhere else, and none of the
other names in the same document are hyphenated.

Signed-off-by: Thomas Hebb <tommyhebb@gmail.com>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-11-20 16:46:59 -07:00
Tom Hebb 4cbbf01961 Documentation: arm: add Marvell Armada 1500 Mini Plus to SoC list
Add known information about the Marvell BG2CDP SoC that's used in
the Google Chromecast 2015 and Kinoma HD devices.

Signed-off-by: Thomas Hebb <tommyhebb@gmail.com>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-11-20 16:46:24 -07:00
Tom Hebb 787a40325a Documentation: arm: update homepage URLs for Marvell Berlin SoCs
Marvell has renamed their Berlin family from "Digital Entertainment" to
"Multimedia Solutions." There aren't proper redirects set up for
device-specific pages, so update the URLs accordingly.

Signed-off-by: Thomas Hebb <tommyhebb@gmail.com>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-11-20 16:45:46 -07:00
Linus Torvalds 56e0464980 ARM: SoC platform updates for v4.4
New and/or improved SoC support for this release:
 
  - Marvell Berlin:
    * Enable standard DT-based cpufreq
    * Add CPU hotplug support
  - Freescale:
    * Ethernet init for i.MX7D
    * Suspend/resume support for i.MX6UL
  - Allwinner:
    * Support for R8 chipset (used on NTC's $9 C.H.I.P board)
  - Mediatek:
    * SMP support for some platforms
  - Uniphier:
    * L2 support
    * Cleaned up SMP support, etc.
 
 + A handful of other patches around above functionality, and a few other
 smaller changes.
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform updates from Olof Johansson:
 "New and/or improved SoC support for this release:

  Marvell Berlin:
     - Enable standard DT-based cpufreq
     - Add CPU hotplug support

  Freescale:
     - Ethernet init for i.MX7D
     - Suspend/resume support for i.MX6UL

  Allwinner:
     - Support for R8 chipset (used on NTC's $9 C.H.I.P board)

  Mediatek:
     - SMP support for some platforms

  Uniphier:
     - L2 support
     - Cleaned up SMP support, etc.

  plus a handful of other patches around above functionality, and a few
  other smaller changes"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (42 commits)
  ARM: uniphier: rework SMP operations to use trampoline code
  ARM: uniphier: add outer cache support
  Documentation: EXYNOS: Update bootloader interface on exynos542x
  ARM: mvebu: add broken-idle option
  ARM: orion5x: use mac_pton() helper
  ARM: at91: pm: at91_pm_suspend_in_sram() must be 8-byte aligned
  ARM: sunxi: Add R8 support
  ARM: digicolor: select pinctrl/gpio driver
  arm: berlin: add CPU hotplug support
  arm: berlin: use non-self-cleared reset register to reset cpu
  ARM: mediatek: add smp bringup code
  ARM: mediatek: enable gpt6 on boot up to make arch timer working
  soc: mediatek: Fix random hang up issue while kernel init
  soc: ti: qmss: make acc queue support optional in the driver
  soc: ti: add firmware file name as part of the driver
  Documentation: dt: soc: Add description for knav qmss driver
  ARM: S3C64XX: Use PWM lookup table for mach-smartq
  ARM: S3C64XX: Use PWM lookup table for mach-hmt
  ARM: S3C64XX: Use PWM lookup table for mach-crag6410
  ARM: S3C64XX: Use PWM lookup table for smdk6410
  ...
2015-11-10 14:56:23 -08:00
Linus Torvalds 2dc10ad81f arm64 updates for 4.4:
- "genirq: Introduce generic irq migration for cpu hotunplugged" patch
   merged from tip/irq/for-arm to allow the arm64-specific part to be
   upstreamed via the arm64 tree
 
 - CPU feature detection reworked to cope with heterogeneous systems
   where CPUs may not have exactly the same features. The features
   reported by the kernel via internal data structures or ELF_HWCAP are
   delayed until all the CPUs are up (and before user space starts)
 
 - Support for 16KB pages, with the additional bonus of a 36-bit VA
   space, though the latter only depending on EXPERT
 
 - Implement native {relaxed, acquire, release} atomics for arm64
 
 - New ASID allocation algorithm which avoids IPI on roll-over, together
   with TLB invalidation optimisations (using local vs global where
   feasible)
 
 - KASan support for arm64
 
 - EFI_STUB clean-up and isolation for the kernel proper (required by
   KASan)
 
 - copy_{to,from,in}_user optimisations (sharing the memcpy template)
 
 - perf: moving arm64 to the arm32/64 shared PMU framework
 
 - L1_CACHE_BYTES increased to 128 to accommodate Cavium hardware
 
 - Support for the contiguous PTE hint on kernel mapping (16 consecutive
   entries may be able to use a single TLB entry)
 
 - Generic CONFIG_HZ now used on arm64
 
 - defconfig updates
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 updates from Catalin Marinas:

 - "genirq: Introduce generic irq migration for cpu hotunplugged" patch
   merged from tip/irq/for-arm to allow the arm64-specific part to be
   upstreamed via the arm64 tree

 - CPU feature detection reworked to cope with heterogeneous systems
   where CPUs may not have exactly the same features.  The features
   reported by the kernel via internal data structures or ELF_HWCAP are
   delayed until all the CPUs are up (and before user space starts)

 - Support for 16KB pages, with the additional bonus of a 36-bit VA
   space, though the latter only depending on EXPERT

 - Implement native {relaxed, acquire, release} atomics for arm64

 - New ASID allocation algorithm which avoids IPI on roll-over, together
   with TLB invalidation optimisations (using local vs global where
   feasible)

 - KASan support for arm64

 - EFI_STUB clean-up and isolation for the kernel proper (required by
   KASan)

 - copy_{to,from,in}_user optimisations (sharing the memcpy template)

 - perf: moving arm64 to the arm32/64 shared PMU framework

 - L1_CACHE_BYTES increased to 128 to accommodate Cavium hardware

 - Support for the contiguous PTE hint on kernel mapping (16 consecutive
   entries may be able to use a single TLB entry)

 - Generic CONFIG_HZ now used on arm64

 - defconfig updates

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (91 commits)
  arm64/efi: fix libstub build under CONFIG_MODVERSIONS
  ARM64: Enable multi-core scheduler support by default
  arm64/efi: move arm64 specific stub C code to libstub
  arm64: page-align sections for DEBUG_RODATA
  arm64: Fix build with CONFIG_ZONE_DMA=n
  arm64: Fix compat register mappings
  arm64: Increase the max granular size
  arm64: remove bogus TASK_SIZE_64 check
  arm64: make Timer Interrupt Frequency selectable
  arm64/mm: use PAGE_ALIGNED instead of IS_ALIGNED
  arm64: cachetype: fix definitions of ICACHEF_* flags
  arm64: cpufeature: declare enable_cpu_capabilities as static
  genirq: Make the cpuhotplug migration code less noisy
  arm64: Constify hwcap name string arrays
  arm64/kvm: Make use of the system wide safe values
  arm64/debug: Make use of the system wide safe value
  arm64: Move FP/ASIMD hwcap handling to common code
  arm64/HWCAP: Use system wide safe values
  arm64/capabilities: Make use of system wide safe value
  arm64: Delay cpu feature capability checks
  ...
2015-11-04 14:47:13 -08:00
Linus Torvalds f5a8160c1e Merge branch 'core-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI changes from Ingo Molnar:
 "The main changes in this cycle were:

   - further EFI code generalization to make it more workable for ARM64
   - various extensions, such as 64-bit framebuffer address support,
     UEFI v2.5 EFI_PROPERTIES_TABLE support
   - code modularization simplifications and cleanups
   - new debugging parameters
   - various fixes and smaller additions"

* 'core-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
  efi: Fix warning of int-to-pointer-cast on x86 32-bit builds
  efi: Use correct type for struct efi_memory_map::phys_map
  x86/efi: Fix kernel panic when CONFIG_DEBUG_VIRTUAL is enabled
  efi: Add "efi_fake_mem" boot option
  x86/efi: Rename print_efi_memmap() to efi_print_memmap()
  efi: Auto-load the efi-pstore module
  efi: Introduce EFI_NX_PE_DATA bit and set it from properties table
  efi: Add support for UEFIv2.5 Properties table
  efi: Add EFI_MEMORY_MORE_RELIABLE support to efi_md_typeattr_format()
  efifb: Add support for 64-bit frame buffer addresses
  efi/arm64: Clean up efi_get_fdt_params() interface
  arm64: Use core efi=debug instead of uefi_debug command line parameter
  efi/x86: Move efi=debug option parsing to core
  drivers/firmware: Make efi/esrt.c driver explicitly non-modular
  efi: Use the generic efi.memmap instead of 'memmap'
  acpi/apei: Use appropriate pgprot_t to map GHES memory
  arm64, acpi/apei: Implement arch_apei_get_mem_attributes()
  arm64/mm: Add PROT_DEVICE_nGnRnE and PROT_NORMAL_WT
  acpi, x86: Implement arch_apei_get_mem_attributes()
  efi, x86: Rearrange efi_mem_attributes()
  ...
2015-11-03 15:05:52 -08:00
Linus Torvalds 316dde2fe9 Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull ARM updates from Russell King:
 "In this ARM merge, we remove more lines than we add.  Changes include:

   - Enable imprecise aborts early, so that bus errors aren't masked
     until later in the boot.  This has the side effect that boot
     loaders which provoke these aborts can cause the kernel to crash
     early in boot, so we install a handler to report this event around
     the site where these are enabled.

   - Remove the buggy but impossible to enable cmpxchg syscall code.

   - Add unwinding annotations to some assembly code.

   - Add support for atomic half-word exchange for ARMv6k+.

   - Reduce ioremap() alignment for SMP/LPAE cases where we don't need
     the large alignment.

   - Addition of an "optimal" 3G configuration for systems with 1G of
     RAM.

   - Increase vmalloc space by 128M.

   - Constify some SMP operations structures, which have never been
     writable.

   - Improve ARMs dma_mmap() support for mapping DMA coherent mappings
     into userspace.

   - Fix to the NMI backtrace code in the IPI case on ARM where the
     failing CPU gets stuck for 10s waiting for its own IPI to be
     delivered.

   - Removal of legacy PM support from the AMBA bus driver.

   - Another fix for the previous fix of vdsomunge"

* 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (23 commits)
  ARM: 8449/1: fix bug in vdsomunge swab32 macro
  arm: add missing of_node_put
  ARM: 8447/1: catch pending imprecise abort on unmask
  ARM: 8446/1: amba: Remove unused callbacks for legacy system PM
  ARM: 8443/1: Adding support for atomic half word exchange
  ARM: clean up TWD after previous patch
  ARM: 8441/2: twd: Don't set CLOCK_EVT_FEAT_C3STOP unconditionally
  ARM: 8440/1: remove obsolete documentation
  ARM: make highpte an expert option
  ARM: 8433/1: add a VMSPLIT_3G_OPT config option
  ARM: 8439/1: Fix backtrace generation when IPI is masked
  ARM: 8428/1: kgdb: Fix registers on sleeping tasks
  ARM: 8427/1: dma-mapping: add support for offset parameter in dma_mmap()
  ARM: 8426/1: dma-mapping: add missing range check in dma_mmap()
  ARM: remove user cmpxchg syscall
  ARM: 8438/1: Add unwinding to __clear_user_std()
  ARM: 8436/1: hw_breakpoint: remove unnecessary header
  ARM: 8434/2: Revert "7655/1: smp_twd: make twd_local_timer_of_register() no-op for nosmp"
  ARM: 8432/1: move VMALLOC_END from 0xff000000 to 0xff800000
  ARM: 8430/1: use default ioremap alignment for SMP or LPAE
  ...
2015-11-03 13:54:35 -08:00
Olof Johansson 156746b173 Samsung SoC updates for v4.4
- use PWM lookup table with pwm_add_table() for the following boards
   : s3c24xx h1940 and rx1950
   : s3c64xx smdk6410, crag6410, hmt and smartq
 - document: update bootloader interface on exynos542x
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Merge tag 'samsung-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/soc

Samsung SoC updates for v4.4

- use PWM lookup table with pwm_add_table() for the following boards
  : s3c24xx h1940 and rx1950
  : s3c64xx smdk6410, crag6410, hmt and smartq
- document: update bootloader interface on exynos542x

* tag 'samsung-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  Documentation: EXYNOS: Update bootloader interface on exynos542x
  ARM: S3C64XX: Use PWM lookup table for mach-smartq
  ARM: S3C64XX: Use PWM lookup table for mach-hmt
  ARM: S3C64XX: Use PWM lookup table for mach-crag6410
  ARM: S3C64XX: Use PWM lookup table for smdk6410
  ARM: S3C24XX: Use PWM lookup table for mach-rx1950
  ARM: S3C24XX: Use PWM lookup table for mach-h1940

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-10-26 10:18:41 +09:00
Krzysztof Kozlowski 97d5c7a77e Documentation: EXYNOS: Update bootloader interface on exynos542x
Update the documentation about:
1. Usage of PMU_SPARE2 register.
   Bootloaders on Exynos542x-based boards often use the register
   PMU_SPARE2 (0x908) in the same way as on Exynos3250: as a indicator
   the secondary CPU was booted on. The bootloader will set this value
   to non-zero, after sucessfull power up of secondary CPU. In the same
   time this booted CPU will stuck (spin) waiting for software reset.
2. Exynos542x entry address for secondary CPU boot up after system
   suspend (with MCPM enabled and in non-secure mode).

See arch/arm/mach-exynos/mcpm-exynos.c for source code.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-10-24 04:43:31 +09:00
Olof Johansson fc1f61f1c0 Allwinner core changes for 4.4
Add support for the Allwinner R8 SoC used in the CHIP.
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Merge tag 'sunxi-core-for-4.4' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into next/soc

Allwinner core changes for 4.4

Add support for the Allwinner R8 SoC used in the CHIP.

* tag 'sunxi-core-for-4.4' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
  ARM: sunxi: Add R8 support

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-10-23 10:19:36 -07:00
Maxime Ripard bef6229f36 ARM: sunxi: Add R8 support
The R8 is a new Allwinner SoC based on the A13. While both are very
similar, there's still a few differences. Introduce a new compatible to
deal with them.

In order to have a consistent naming, instead of mentioning the Allwinner
A series as the machine name, switch to sun4i/sun5i like what is done for
the other families.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
2015-10-17 18:47:28 +02:00
Ingo Molnar 790a2ee242 * Make the EFI System Resource Table (ESRT) driver explicitly
non-modular by ripping out the module_* code since Kconfig doesn't
    allow it to be built as a module anyway - Paul Gortmaker
 
  * Make the x86 efi=debug kernel parameter, which enables EFI debug
    code and output, generic and usable by arm64 - Leif Lindholm
 
  * Add support to the x86 EFI boot stub for 64-bit Graphics Output
    Protocol frame buffer addresses - Matt Fleming
 
  * Detect when the UEFI v2.5 EFI_PROPERTIES_TABLE feature is enabled
    in the firmware and set an efi.flags bit so the kernel knows when
    it can apply more strict runtime mapping attributes - Ard Biesheuvel
 
  * Auto-load the efi-pstore module on EFI systems, just like we
    currently do for the efivars module - Ben Hutchings
 
  * Add "efi_fake_mem" kernel parameter which allows the system's EFI
    memory map to be updated with additional attributes for specific
    memory ranges. This is useful for testing the kernel code that handles
    the EFI_MEMORY_MORE_RELIABLE memmap bit even if your firmware
    doesn't include support - Taku Izumi
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Merge tag 'efi-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi into core/efi

Pull v4.4 EFI updates from Matt Fleming:

  - Make the EFI System Resource Table (ESRT) driver explicitly
    non-modular by ripping out the module_* code since Kconfig doesn't
    allow it to be built as a module anyway. (Paul Gortmaker)

  - Make the x86 efi=debug kernel parameter, which enables EFI debug
    code and output, generic and usable by arm64. (Leif Lindholm)

  - Add support to the x86 EFI boot stub for 64-bit Graphics Output
    Protocol frame buffer addresses. (Matt Fleming)

  - Detect when the UEFI v2.5 EFI_PROPERTIES_TABLE feature is enabled
    in the firmware and set an efi.flags bit so the kernel knows when
    it can apply more strict runtime mapping attributes - Ard Biesheuvel

  - Auto-load the efi-pstore module on EFI systems, just like we
    currently do for the efivars module. (Ben Hutchings)

  - Add "efi_fake_mem" kernel parameter which allows the system's EFI
    memory map to be updated with additional attributes for specific
    memory ranges. This is useful for testing the kernel code that handles
    the EFI_MEMORY_MORE_RELIABLE memmap bit even if your firmware
    doesn't include support. (Taku Izumi)

Note: there is a semantic conflict between the following two commits:

  8a53554e12 ("x86/efi: Fix multiple GOP device support")
  ae2ee627dc ("efifb: Add support for 64-bit frame buffer addresses")

I fixed up the interaction in the merge commit, changing the type of
current_fb_base from u32 to u64.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-10-14 16:51:34 +02:00
Murali Karicheri 045016902b soc: ti: qmss: make acc queue support optional in the driver
acc channels are available only if accumulator PDSP is loaded and
running in the SoC. As this requires firmware and user may not have
firmware in the file system, make the accumulator queue support
available in qmss driver optional. To use accumulator queus user needs
to add firmware to the file system and boot up kernel.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
2015-10-13 13:49:04 -07:00
Murali Karicheri 96ee19becc soc: ti: add firmware file name as part of the driver
Currently firmware file name is included in the DTS. This is not scalable
as user has to change the DTS if they need upgrade to a new firmware.
Instead, add the firmware file name in the driver itself. As long as there
is no API change, new firmware upgrade is easy and require no driver
change. User is expected to copy the firmware image to the file system
and add a sym link to the new firmware for doing an upgrade. Driver add
a array of firmware file names to search for the available firmware blobs.
This scheme also prepare the driver for future changes to API if ever
happens. In such case it is assumed that driver needs to change to
accommodate the new firmware and new firmware file name will get added to
the array.

Also update the DT document to remove the firmware attribute and add
description about firmware in the driver documentation.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
2015-10-13 13:49:04 -07:00
Murali Karicheri 29204a8272 Documentation: dt: soc: Add description for knav qmss driver
Add documentation for knav qmss driver.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
2015-10-13 13:49:04 -07:00
Tony Lindgren d8e1f5ed11 Documentation: ARM: List new omap MMC requirements
Earlier the PBIAS regulator was optional, not so with recent
omap_hsmmc changes. To make things easier for people with
custom .config files, let's add minimal documentation for it
as suggested by Russell King <rmk+kernel@arm.linux.org.uk>.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 16:23:34 -07:00
Ard Biesheuvel d4dddfdbbc arm64/efi: remove /chosen/linux, uefi-stub-kern-ver DT property
With the stub to kernel interface being promoted to a proper interface
so that other agents than the stub can boot the kernel proper in EFI
mode, we can remove the linux,uefi-stub-kern-ver field, considering
that its original purpose was to prevent this from happening in the
first place.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Matt Fleming <matt.fleming@intel.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2015-10-12 16:19:33 +01:00
Leif Lindholm c9494dc818 arm64: Use core efi=debug instead of uefi_debug command line parameter
Now that we have an efi=debug command line option in the core code, use
this instead of the arm64-specific uefi_debug option.

Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Mark Salter <msalter@redhat.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2015-10-12 14:20:05 +01:00