[LinuxBIOS] More MCP55 hacking

Ed Swierk eswierk at arastra.com
Wed Dec 13 02:41:08 CET 2006

On 12/12/06, Lu, Yinghai <yinghai.lu at amd.com> wrote:
> You need to use 64 bit kernel if you enable pref64 in LinuxBIOS.

CONFIG_PCI_64BIT_PREF_MEM is 0, so it's not clear to me why Linux is
seeing the PCI_PREF_RANGE_TYPE_64 bit set in the configuration
registers of those bridges.

Perhaps the pref64 bit is set by default by the hardware; if so, is
there a way to clear it in LinuxBIOS?


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