Eric Lee / smarc-uboot

27 Mar, 2012

1 commit

01 Sep, 2008

1 commit

  • ab0df36fc   avr32: refactor the portmux/gpio code ... Browse Code »

    - Separate the portmux configuration functionality from the GPIO pin
    control API.
    - Separate the controller-specific code from the chip-specific code.
    - Allow "ganged" port configuration (multiple pins at once).
    - Add more flexibility to the "canned" peripheral select functions:
    - Allow using more than 23 address bits, more chip selects, as
    well as NAND- and CF-specific pins.
    - Make the MACB SPEED pin optional, and choose between MII/RMII
    using a parameter instead of an #ifdef.
    - Make it possible to use other MMC slots than slot 0, and support
    different MMC/SDCard data bus widths.
    - Use more reasonable pull-up defaults; floating pins may consume a
    lot of power.
    - Get rid of some custom portmux code from the mimc200 board code. The
    old gpio/portmux API couldn't really handle its requirements, but
    the new one can.
    - Add documentation.

    The end result is slightly smaller code for all boards. Which isn't
    really the point, but at least it isn't any larger.

    This has been verified on ATSTK1002 and ATNGW100. I'd appreciate if
    the board maintainers could help me test this on their boards. In
    particular, the mimc200 port has lost a lot of code, so I'm hoping Mark
    can help me out.

    Signed-off-by: Haavard Skinnemoen
    Cc: Hans-Christian Egtvedt
    Cc: Mark Jackson
    Cc: Alex Raimondi
    Cc: Julien May

    Changes since v1:
    * Enable pullup on NWAIT
    * Add missing include to portmux-pio.h
    * Rename CONFIG_PIO2 -> CONFIG_PORTMUX_PIO to match docs

    Haavard Skinnemoen