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    SubjectRe: [MIPS] MEM_SDREFCFG is not defined for Alchemy DB1550 (compile fail)
    On Tue, Dec 25, 2007 at 01:41:21PM +0300, Sergei Shtylyov wrote:

    >> When I have:
    >> CONFIG_MIPS_DB1550
    >> CONFIG_SOC_AU1550
    >> CONFIG_SOC_AU1X00
    >> CONFIG_PM
    >
    >> MEM_SDREFCFG is used at:
    >> arch/mips/au1000/common/power.c::pm_do_freq()
    >
    > PM code is generally broken and unmaintained, so no wonder. I don't
    > remember if anyone has fixed CPU context restoration code (it uses a
    > "skewed" stack frame).
    >
    >> While the MEM_SDREFCFG constant is declare only for CONFIG_SOC_AU1000,
    >> CONFIG_SOC_AU1500, CONFIG_SOC_AU1100 at:
    >> include/asm-mips/mach-au1x00/au1000.h
    >
    >> Maybe MEM_SDREFCFG should be defined for CONFIG_SOC_AU1X00?
    >
    > I've just looked into the Au1550 datasheet and indeed it doesn't have
    > such register; its SDDRAM controller is not compatible with older SoCs.
    >
    >> Or there should be #ifdef for its usage in power.c?
    >
    > Looks like you'll have to invent something... ;-)
    >
    >> Best Regards,
    >> Alon Bar-Lev.

    So I guess it's time to mark the whole PM stuff as BROKEN?

    Ralf


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