Eric Lee / smarc-fsl-linux-kernel

10 Jan, 2019

2 commits

02 Nov, 2017

1 commit

  • b24413180   License cleanup: add SPDX GPL-2.0 license identifier to files with no license ... Browse Code »

    Many source files in the tree are missing licensing information, which
    makes it harder for compliance tools to determine the correct license.

    By default all files without license information are under the default
    license of the kernel, which is GPL version 2.

    Update the files which contain no license information with the 'GPL-2.0'
    SPDX license identifier. The SPDX identifier is a legally binding
    shorthand, which can be used instead of the full boiler plate text.

    This patch is based on work done by Thomas Gleixner and Kate Stewart and
    Philippe Ombredanne.

    How this work was done:

    Patches were generated and checked against linux-4.14-rc6 for a subset of
    the use cases:
    - file had no licensing information it it.
    - file was a */uapi/* one with no licensing information in it,
    - file was a */uapi/* one with existing licensing information,

    Further patches will be generated in subsequent months to fix up cases
    where non-standard license headers were used, and references to license
    had to be inferred by heuristics based on keywords.

    The analysis to determine which SPDX License Identifier to be applied to
    a file was done in a spreadsheet of side by side results from of the
    output of two independent scanners (ScanCode & Windriver) producing SPDX
    tag:value files created by Philippe Ombredanne. Philippe prepared the
    base worksheet, and did an initial spot review of a few 1000 files.

    The 4.13 kernel was the starting point of the analysis with 60,537 files
    assessed. Kate Stewart did a file by file comparison of the scanner
    results in the spreadsheet to determine which SPDX license identifier(s)
    to be applied to the file. She confirmed any determination that was not
    immediately clear with lawyers working with the Linux Foundation.

    Criteria used to select files for SPDX license identifier tagging was:
    - Files considered eligible had to be source code files.
    - Make and config files were included as candidates if they contained >5
    lines of source
    - File already had some variant of a license header in it (even if
    Reviewed-by: Philippe Ombredanne
    Reviewed-by: Thomas Gleixner
    Signed-off-by: Greg Kroah-Hartman

    Greg Kroah-Hartman
     

17 Jan, 2017

1 commit

  • 7195439d1   Revert "bcma: init serial console directly from ChipCommon code" ... Browse Code »

    This reverts commit 4c81acab3816 ("bcma: init serial console directly
    from ChipCommon code") as it broke IRQ assignment. Getting IRQ with
    bcma_core_irq helper on SoC requires MIPS core to be set. It happens
    *after* ChipCommon initialization so we can't do this so early.

    This fixes a user reported regression. It wasn't critical as serial was
    still somehow working but lack of IRQs was making in unreliable.

    Fixes: 4c81acab3816 ("bcma: init serial console directly from ChipCommon code")
    Reported-by: Felix Fietkau
    Cc: stable@vger.kernel.org # 4.6+
    Signed-off-by: Rafał Miłecki
    Signed-off-by: Kalle Valo

    Rafał Miłecki
     

11 Jul, 2016

1 commit

  • abb2bafd2   x86/quirks: Add early quirk to reset Apple AirPort card ... Browse Code »

    The EFI firmware on Macs contains a full-fledged network stack for
    downloading OS X images from osrecovery.apple.com. Unfortunately
    on Macs introduced 2011 and 2012, EFI brings up the Broadcom 4331
    wireless card on every boot and leaves it enabled even after
    ExitBootServices has been called. The card continues to assert its IRQ
    line, causing spurious interrupts if the IRQ is shared. It also corrupts
    memory by DMAing received packets, allowing for remote code execution
    over the air. This only stops when a driver is loaded for the wireless
    card, which may be never if the driver is not installed or blacklisted.

    The issue seems to be constrained to the Broadcom 4331. Chris Milsted
    has verified that the newer Broadcom 4360 built into the MacBookPro11,3
    (2013/2014) does not exhibit this behaviour. The chances that Apple will
    ever supply a firmware fix for the older machines appear to be zero.

    The solution is to reset the card on boot by writing to a reset bit in
    its mmio space. This must be done as an early quirk and not as a plain
    vanilla PCI quirk to successfully combat memory corruption by DMAed
    packets: Matthew Garrett found out in 2012 that the packets are written
    to EfiBootServicesData memory (http://mjg59.dreamwidth.org/11235.html).
    This type of memory is made available to the page allocator by
    efi_free_boot_services(). Plain vanilla PCI quirks run much later, in
    subsys initcall level. In-between a time window would be open for memory
    corruption. Random crashes occurring in this time window and attributed
    to DMAed packets have indeed been observed in the wild by Chris
    Bainbridge.

    When Matthew Garrett analyzed the memory corruption issue in 2012, he
    sought to fix it with a grub quirk which transitions the card to D3hot:
    http://git.savannah.gnu.org/cgit/grub.git/commit/?id=9d34bb85da56

    This approach does not help users with other bootloaders and while it
    may prevent DMAed packets, it does not cure the spurious interrupts
    emanating from the card. Unfortunately the card's mmio space is
    inaccessible in D3hot, so to reset it, we have to undo the effect of
    Matthew's grub patch and transition the card back to D0.

    Note that the quirk takes a few shortcuts to reduce the amount of code:
    The size of BAR 0 and the location of the PM capability is identical
    on all affected machines and therefore hardcoded. Only the address of
    BAR 0 differs between models. Also, it is assumed that the BCMA core
    currently mapped is the 802.11 core. The EFI driver seems to always take
    care of this.

    Michael Büsch, Bjorn Helgaas and Matt Fleming contributed feedback
    towards finding the best solution to this problem.

    The following should be a comprehensive list of affected models:
    iMac13,1 2012 21.5" [Root Port 00:1c.3 = 8086:1e16]
    iMac13,2 2012 27" [Root Port 00:1c.3 = 8086:1e16]
    Macmini5,1 2011 i5 2.3 GHz [Root Port 00:1c.1 = 8086:1c12]
    Macmini5,2 2011 i5 2.5 GHz [Root Port 00:1c.1 = 8086:1c12]
    Macmini5,3 2011 i7 2.0 GHz [Root Port 00:1c.1 = 8086:1c12]
    Macmini6,1 2012 i5 2.5 GHz [Root Port 00:1c.1 = 8086:1e12]
    Macmini6,2 2012 i7 2.3 GHz [Root Port 00:1c.1 = 8086:1e12]
    MacBookPro8,1 2011 13" [Root Port 00:1c.1 = 8086:1c12]
    MacBookPro8,2 2011 15" [Root Port 00:1c.1 = 8086:1c12]
    MacBookPro8,3 2011 17" [Root Port 00:1c.1 = 8086:1c12]
    MacBookPro9,1 2012 15" [Root Port 00:1c.1 = 8086:1e12]
    MacBookPro9,2 2012 13" [Root Port 00:1c.1 = 8086:1e12]
    MacBookPro10,1 2012 15" [Root Port 00:1c.1 = 8086:1e12]
    MacBookPro10,2 2012 13" [Root Port 00:1c.1 = 8086:1e12]

    For posterity, spurious interrupts caused by the Broadcom 4331 wireless
    card resulted in splats like this (stacktrace omitted):

    irq 17: nobody cared (try booting with the "irqpoll" option)
    handlers:
    [] pcie_isr
    [] sdhci_irq [sdhci] threaded [] sdhci_thread_irq [sdhci]
    [] azx_interrupt [snd_hda_codec]
    Disabling IRQ #17

    Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=79301
    Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=111781
    Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=728916
    Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=895951#c16
    Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1009819
    Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1098621
    Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1149632#c5
    Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1279130
    Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1332732
    Tested-by: Konstantin Simanov # [MacBookPro8,1]
    Tested-by: Lukas Wunner # [MacBookPro9,1]
    Tested-by: Bryan Paradis # [MacBookPro9,2]
    Tested-by: Andrew Worsley # [MacBookPro10,1]
    Tested-by: Chris Bainbridge # [MacBookPro10,2]
    Signed-off-by: Lukas Wunner
    Acked-by: Rafał Miłecki
    Acked-by: Matt Fleming
    Cc: Andy Lutomirski
    Cc: Bjorn Helgaas
    Cc: Borislav Petkov
    Cc: Brian Gerst
    Cc: Chris Milsted
    Cc: Denys Vlasenko
    Cc: H. Peter Anvin
    Cc: Josh Poimboeuf
    Cc: Linus Torvalds
    Cc: Matthew Garrett
    Cc: Michael Buesch
    Cc: Peter Zijlstra
    Cc: Thomas Gleixner
    Cc: Yinghai Lu
    Cc: b43-dev@lists.infradead.org
    Cc: linux-pci@vger.kernel.org
    Cc: linux-wireless@vger.kernel.org
    Cc: stable@vger.kernel.org
    Cc: stable@vger.kernel.org # 123456789abc: x86/quirks: Apply nvidia_bugs quirk only on root bus
    Cc: stable@vger.kernel.org # 123456789abc: x86/quirks: Reintroduce scanning of secondary buses
    Link: http://lkml.kernel.org/r/48d0972ac82a53d460e5fce77a07b2560db95203.1465690253.git.lukas@wunner.de
    [ Did minor readability edits. ]
    Signed-off-by: Ingo Molnar

    Lukas Wunner
     

07 Mar, 2016

1 commit

  • d6a3b51ad   bcma: move parallel flash support to separated file ... Browse Code »

    This follows the way of handling other flashes and cleans code a bit. As
    next task we will want to move flash code to ChipCommon driver as:
    1) Flash controllers are accesible using ChipCommon registers
    2) This code isn't MIPS specific
    This change prepares bcma for that.

    Signed-off-by: Rafał Miłecki
    Signed-off-by: Kalle Valo

    Rafał Miłecki
     

06 Feb, 2016

1 commit

  • 4c81acab3   bcma: init serial console directly from ChipCommon code ... Browse Code »

    UART is connected to and controlled over ChipCommon core. It doesn't
    have much to do with MIPS core (where we initialize it currently)
    except just existing on embedded systemms. There isn't point of such
    cross-core initialization (and we needed #ifdef anyway) so just handle
    it in ChipCommon.

    Signed-off-by: Rafał Miłecki
    Signed-off-by: Kalle Valo

    Rafał Miłecki
     

11 Aug, 2015

1 commit

  • 53cd2fdb0   bcma: fix access to host_pdev for PCIe devices ... Browse Code »

    bus->host_pdev is part of a union so bus->host_pdev != NULL is probably
    also true for PCIe devices, because there it accesses bus->host_pci. If
    we access the dev member at the offset defined in struct
    platform_device in struct pci_dev instead we probably get something
    else.

    This patch adds a new function which returns the host dev struct and
    NULL if we do not have a host dev. When this gets registered on MIPS
    brcm47xx we do not have a host dev in some situations.
    This function could also be used in other places.

    This problem was introduced in this commit:
    commit cae761b5a6bdc597ba476a040fdcd5b4bc559b85
    Author: Rafa? Mi?ecki
    Date: Sun Jun 28 17:17:13 2015 +0200

    bcma: populate bus DT subnodes as platform_device-s

    Signed-off-by: Hauke Mehrtens
    Signed-off-by: Kalle Valo

    Hauke Mehrtens
     

13 Mar, 2015

1 commit

05 Mar, 2015

1 commit

02 Mar, 2015

3 commits

29 Jan, 2015

1 commit

24 Jan, 2015

2 commits

28 Oct, 2014

1 commit

01 Oct, 2014

1 commit

  • 2101e533f   bcma: register bcma as device tree driver ... Browse Code »

    This driver is used by the bcm53xx ARM SoC code. Now it is possible to
    give the address of the chipcommon core in device tree and bcma will
    search for all the other cores.

    Signed-off-by: Hauke Mehrtens
    Acked-by: Arnd Bergmann
    Signed-off-by: John W. Linville

    Hauke Mehrtens
     

10 Sep, 2014

1 commit

05 Jan, 2014

1 commit

  • b2395b8ae   bcma: export bcma_find_core_unit() ... Browse Code »

    This function is used to get a specific core when there is more than
    one core of that specific type. This is used in bgmac to reset all GMAC
    cores.

    Signed-off-by: Hauke Mehrtens
    Acked-by: Rafał Miłecki
    Signed-off-by: David S. Miller

    Hauke Mehrtens
     

28 Jun, 2013

1 commit

09 Feb, 2013

2 commits

07 Feb, 2013

1 commit

05 Feb, 2013

1 commit

31 Jan, 2013

1 commit

29 Jan, 2013

1 commit

08 Jan, 2013

1 commit

04 Jan, 2013

1 commit

  • 0f58a01dd   Drivers: bcma: remove __dev* attributes. ... Browse Code »

    CONFIG_HOTPLUG is going away as an option. As a result, the __dev*
    markings need to be removed.

    This change removes the use of __devinit, __devexit_p, and __devexit
    from these drivers.

    Based on patches originally written by Bill Pemberton, but redone by me
    in order to handle some of the coding style issues better, by hand.

    Cc: Bill Pemberton
    Cc: "Rafał Miłecki"
    Signed-off-by: Greg Kroah-Hartman

    Greg Kroah-Hartman
     

15 Dec, 2012

1 commit

  • cebfa85eb   Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus ... Browse Code »

    Pull MIPS updates from Ralf Baechle:
    "The MIPS bits for 3.8. This also includes a bunch fixes that were
    sitting in the linux-mips.org git tree for a long time. This pull
    request contains updates to several OCTEON drivers and the board
    support code for BCM47XX, BCM63XX, XLP, XLR, XLS, lantiq, Loongson1B,
    updates to the SSB bus support, MIPS kexec code and adds support for
    kdump.

    When pulling this, there are two expected merge conflicts in
    include/linux/bcma/bcma_driver_chipcommon.h which are trivial to
    resolve, just remove the conflict markers and keep both alternatives."

    * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (90 commits)
    MIPS: PMC-Sierra Yosemite: Remove support.
    VIDEO: Newport Fix console crashes
    MIPS: wrppmc: Fix build of PCI code.
    MIPS: IP22/IP28: Fix build of EISA code.
    MIPS: RB532: Fix build of prom code.
    MIPS: PowerTV: Fix build.
    MIPS: IP27: Correct fucked grammar in ops-bridge.c
    MIPS: Highmem: Fix build error if CONFIG_DEBUG_HIGHMEM is disabled
    MIPS: Fix potencial corruption
    MIPS: Fix for warning from FPU emulation code
    MIPS: Handle COP3 Unusable exception as COP1X for FP emulation
    MIPS: Fix poweroff failure when HOTPLUG_CPU configured.
    MIPS: MT: Fix build with CONFIG_UIDGID_STRICT_TYPE_CHECKS=y
    MIPS: Remove unused smvp.h
    MIPS/EDAC: Improve OCTEON EDAC support.
    MIPS: OCTEON: Add definitions for OCTEON memory contoller registers.
    MIPS: OCTEON: Add OCTEON family definitions to octeon-model.h
    ata: pata_octeon_cf: Use correct byte order for DMA in when built little-endian.
    MIPS/OCTEON/ata: Convert pata_octeon_cf.c to use device tree.
    MIPS: Remove usage of CEVT_R4K_LIB config option.
    ...

    Linus Torvalds
     

11 Dec, 2012

1 commit

07 Dec, 2012

1 commit

  • a4855f39d   bcma: register watchdog driver ... Browse Code »

    Register the watchdog driver to the system if this is a SoC. Using the
    watchdog on a non SoC device, like a PCIe card, will make the PCIe
    card die when the timeout expired, but starting it again is not
    supported by bcma.

    Signed-off-by: Hauke Mehrtens
    Signed-off-by: John W. Linville

    Hauke Mehrtens
     

22 Nov, 2012

1 commit

  • cf0936b06   bcma: add GPIO driver ... Browse Code »

    Register a GPIO driver to access the GPIOs provided by the chip.
    The GPIOs of the SoC should always start at 0 and the other GPIOs could
    start at a random position. There is just one SoC in a system and when
    they start at 0 the number is predictable.

    Signed-off-by: Hauke Mehrtens
    Patchwork: http://patchwork.linux-mips.org/patch/4587
    Acked-by: Florian Fainelli

    Hauke Mehrtens
     

22 Aug, 2012

2 commits

18 Jul, 2012

1 commit

10 Jul, 2012

1 commit

  • 3d9d8af33   bcma: use custom printing functions ... Browse Code »

    Having bus number printed makes it much easier to anaylze logs on
    systems with more buses. For example Netgear WNDR4500 has 3 AMBA buses
    in total, which makes standard log really messy.

    Signed-off-by: Rafał Miłecki
    Signed-off-by: John W. Linville

    Rafał Miłecki
     

07 Feb, 2012

3 commits