Re: [MIPS] MEM_SDREFCFG is not defined for Alchemy DB1550 (compile fail)

[Ralf Baechle <ralf@linux-mips.org>]

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