Eric Lee / smarc-fsl-linux-kernel

12 May, 2008

1 commit

  • 45b3947c2   [Blackfin] arch: Blackfin checksum annotations ... Browse Code »

    FSVOtest in this case, since I don't have the hardware...
    However, all changes seen by gcc are actually
    - explicit cast to unsigned short in return expression of functions
    returning unsigned short
    - csum_fold() return type changed from unsigned int to __sum16
    (unsigned short), same as for all other architecture and as net/* expects;
    expression actually returned is ((~(sum << 16)) >> 16) with sum being
    unsigned 32bit, so it's (a) going to fit into the range of unsigned short
    and (b) had been unsigned all along, so no sign expansion mess happened.

    Tested-by: Bryan Wu
    Signed-off-by: Al Viro
    Signed-off-by: David Miller
    Signed-off-by: Bryan Wu

    Al Viro
     

08 May, 2007

1 commit

  • 1394f0322   blackfin architecture ... Browse Code »

    This adds support for the Analog Devices Blackfin processor architecture, and
    currently supports the BF533, BF532, BF531, BF537, BF536, BF534, and BF561
    (Dual Core) devices, with a variety of development platforms including those
    avaliable from Analog Devices (BF533-EZKit, BF533-STAMP, BF537-STAMP,
    BF561-EZKIT), and Bluetechnix! Tinyboards.

    The Blackfin architecture was jointly developed by Intel and Analog Devices
    Inc. (ADI) as the Micro Signal Architecture (MSA) core and introduced it in
    December of 2000. Since then ADI has put this core into its Blackfin
    processor family of devices. The Blackfin core has the advantages of a clean,
    orthogonal,RISC-like microprocessor instruction set. It combines a dual-MAC
    (Multiply/Accumulate), state-of-the-art signal processing engine and
    single-instruction, multiple-data (SIMD) multimedia capabilities into a single
    instruction-set architecture.

    The Blackfin architecture, including the instruction set, is described by the
    ADSP-BF53x/BF56x Blackfin Processor Programming Reference
    http://blackfin.uclinux.org/gf/download/frsrelease/29/2549/Blackfin_PRM.pdf

    The Blackfin processor is already supported by major releases of gcc, and
    there are binary and source rpms/tarballs for many architectures at:
    http://blackfin.uclinux.org/gf/project/toolchain/frs There is complete
    documentation, including "getting started" guides available at:
    http://docs.blackfin.uclinux.org/ which provides links to the sources and
    patches you will need in order to set up a cross-compiling environment for
    bfin-linux-uclibc

    This patch, as well as the other patches (toolchain, distribution,
    uClibc) are actively supported by Analog Devices Inc, at:
    http://blackfin.uclinux.org/

    We have tested this on LTP, and our test plan (including pass/fails) can
    be found at:
    http://docs.blackfin.uclinux.org/doku.php?id=testing_the_linux_kernel

    [m.kozlowski@tuxland.pl: balance parenthesis in blackfin header files]
    Signed-off-by: Bryan Wu
    Signed-off-by: Mariusz Kozlowski
    Signed-off-by: Aubrey Li
    Signed-off-by: Jie Zhang
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Bryan Wu