On 8/2/07, John Williams <[EMAIL PROTECTED]> wrote: > Hi, > > Any comments on the status/feasibility of suspend/resume for LinuxPPC on > Xilinx devices?
Pretty much non-existant as far as status goes. Feasibility depends entirely on what power management features the Xilinx silicon supports. I haven't looked into whether or not the 405 core can be put into sleep states. > > The only suspend-related traffic I see here in the last 12 months is for > the lite5200b board. > > Any guesstimates of level of difficulty for such a task on Xilinx > PPC405? The core lite5200b patchset didn't look too hairy (just a > modest bit of ASM :), but there would also be Xilinx device driver hooks > to consider. I suspect the driver code will be where most of the effort lies. > Also, are there kernel revision dependencies here? Project is currently > on an MVL 2.6.10 tree - but have seen mention of 2.6.17 (?) being > earliest with PPC suspend/resume capability. Suspend support for ppc has existed for a long time, but there aren't many embedded ppc boards which support it (5200 being a notable example). Personally, I'm keeping up to date with mainline (2.6.22+) on my Virtex tree. Cheers, g. -- Grant Likely, B.Sc., P.Eng. Secret Lab Technologies Ltd. [EMAIL PROTECTED] (403) 399-0195 _______________________________________________ Linuxppc-embedded mailing list [email protected] https://ozlabs.org/mailman/listinfo/linuxppc-embedded
