Eric Lee / smarc-fsl-linux-kernel

19 Dec, 2011

1 commit

  • 2f0778afa   ARM: 7205/2: sched_clock: allow sched_clock to be selected at runtime ... Browse Code »
    86

    sched_clock() is yet another blocker on the road to the single
    image. This patch implements an idea by Russell King:

    http://www.spinics.net/lists/linux-omap/msg49561.html

    Instead of asking the platform to implement both sched_clock()
    itself and the rollover callback, simply register a read()
    function, and let the ARM code care about sched_clock() itself,
    the conversion to ns and the rollover. sched_clock() uses
    this read() function as an indirection to the platform code.
    If the platform doesn't provide a read(), the code falls back
    to the jiffy counter (just like the default sched_clock).

    This allow some simplifications and possibly some footprint gain
    when multiple platforms are compiled in. Among the drawbacks,
    the removal of the *_fixed_sched_clock optimization which could
    negatively impact some platforms (sa1100, tegra, versatile
    and omap).

    Tested on 11MPCore, OMAP4 and Tegra.

    Cc: Imre Kaloz
    Cc: Eric Miao
    Cc: Colin Cross
    Cc: Erik Gilling
    Cc: Olof Johansson
    Cc: Sascha Hauer
    Cc: Alessandro Rubini
    Cc: STEricsson
    Cc: Lennert Buytenhek
    Cc: Ben Dooks
    Tested-by: Jamie Iles
    Tested-by: Tony Lindgren
    Tested-by: Kyungmin Park
    Acked-by: Linus Walleij
    Acked-by: Nicolas Pitre
    Acked-by: Krzysztof Halasa
    Acked-by: Kukjin Kim
    Signed-off-by: Marc Zyngier
    Signed-off-by: Russell King

    Marc Zyngier
     

26 Sep, 2011

1 commit

  • af75655c0   picoxcell: support for Picochip picoxcell devices ... Browse Code »

    picoXcell is a family of femtocell devices with an ARM application
    processor and picoArray DSP processor array.

    This patch adds support for picoXcell boards to be booted using the
    device tree registering the VIC's, UART's and timers.

    v3: - fixup vic compatible string in binding
    v2: - cleanup empty mach headers
    - convert to of_platform_populate()
    - simplify uncompress.h
    - split vic node into 2 devices
    - add missing __initconst attributes

    Signed-off-by: Jamie Iles

    Jamie Iles