• Linus Torvalds's avatar
    Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc · 9896c7b5
    Linus Torvalds authored
    Pull ARM SoC platform updates from Arnd Bergmann:
     "We get support for three new 32-bit SoC platforms this time.
    
      The amount of changes in arch/arm for any of them is miniscule, as all
      the interesting code is in device driver subsystems (irqchip, clk,
      pinctrl, ...) these days.  I'm listing them here, as the addition of
      the Kconfig statement is the main relevant milestone for a new
      platform.  In each case, some drivers are are shared with existing
      platforms, while other drivers are added for v4.7 as well, or come in
      a later release.
    
       - The Aspeed platform is probably the most interesting one, this is
         what most whitebox servers use as their baseboard management
         controller.  We get support for the very common ast2400 and ast2500
         SoCs.  The OpenBMC project focuses on this chip, and the LWN
         article about their ELC 2016 presentation at
    
            https://lwn.net/Articles/683320/
    
         triggered the submission, but the code comes from IBM's OpenPOWER
         team rather than the team at Facebook.  There are still a lot more
         drivers that need to get added over time, and I hope both teams can
         work together on that.
    
       - OXNAS is an old platform for Network Attached Storage devices from
         Oxford Semiconductor.  There are models with ARM10 (!) and
         ARM11MPCore cores, but for now, we only support the original ARM9
         based versions.  The product lineup was subsequently part of PLX,
         Avago and now the new Broadcom Ltd.
    
            https://wiki.openwrt.org/doc/hardware/soc/soc.oxnas
    
         has some more information.
    
       - V2M-MPS2 is a prototyping platform from ARM for their Cortex-M
         cores and is related to the existing Realview / Versatile Express
         lineup, but without MMU.
    
         We now support various NOMMU platforms, so adding a new one is
         fairly straightforward.
    
            http://infocenter.arm.com/help/topic/com.arm.doc.100112_0100_03_en/
    
         has detailed information about the platform.
    
      Other noteworthy updates:
    
       - Work on LPC32xx has resumed, and Vladimir Zapolskiy and Sylvain
         Lemieux are now maintaining the platform.
    
         This is an older ARM9 based platform from NXP (not Freescale), but
         it remains in use in embedded markets.
    
       - Kevin Hilman is now co-maintaining the Amlogic Meson platform for
         both 32-bit and 64-bit ARM, and started contributing some patches.
    
       - As is often the case, work on the OMAP platforms makes up the bulk
         of the actual SoC code changes in arch/arm, but there isn't a lot
         of that either"
    
    * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (42 commits)
      MAINTAINERS: ARM/Amlogic: add co-maintainer, misc. updates
      MAINTAINERS: add ARM/NXP LPC32XX SoC specific drivers to the section
      MAINTAINERS: add new maintainers of NXP LPC32xx SoC
      MAINTAINERS: move ARM/NXP LPC32xx record to ARM section
      arm: Add Aspeed machine
      ARM: lpc32xx: remove duplicate const on lpc32xx_auxdata_lookup
      ARM: lpc32xx: remove leftovers of legacy clock source and provider drivers
      ARM: lpc32xx: remove reboot header file
      ARM: dove: Remove CLK_IS_ROOT
      ARM: orion5x: Remove CLK_IS_ROOT
      ARM: mv78xx0: Remove CLK_IS_ROOT
      ARM: davinci: da850: use clk->set_parent for async3
      ARM: davinci: Move clock init after ioremap.
      MAINTAINERS: Update ARM Versatile Express platform entry
      ARM: vexpress/mps2: introduce MPS2 platform
      MAINTAINERS: add maintainer entry for ARM/OXNAS platform
      ARM: Add new mach-oxnas
      irqchip: versatile-fpga: add new compatible for OX810SE SoC
      ARM: uniphier: correct the call order of of_node_put()
      MAINTAINERS: fix stale TI DaVinci entries
      ...
    9896c7b5
soc.h 14.4 KB