Eric Lee / smarc-fsl-linux-kernel

27 Feb, 2010

1 commit

  • b9b37787d   MIPS: Cobalt: Fix theoretical port aliasing issue ... Browse Code »

    Because the VIA SuperIO chip only decodes 24 bits of address space but port
    address space currently being configured as 32MB there is the theoretical
    possibility of aliases within the I/O port address range.

    The complicated solution is to reserve all address range that potencially
    could cause such aliases. But with the PCI spec limiting port allocations
    for devices to a maximum of 256 bytes 16MB of port address space already is
    way more than one would ever expect to be used so we just reduce the port
    space to 16MB.

    Signed-off-by: Ralf Baechle
    To: Yoichi Yuasa
    Cc: Bjorn Helgaas
    Cc: linux-mips@linux-mips.org
    Cc: Benjamin Herrenschmidt
    Patchwork: http://patchwork.linux-mips.org/patch/995/

    Ralf Baechle
     

27 Jun, 2007

1 commit

27 Apr, 2007

2 commits