Re: [PATCH v4 1/2] ARM: socfpga: support suspend to ram

From: Pavel Machek
Date: Mon May 25 2015 - 08:41:42 EST


Hi!

> Suspend-to-RAM and EDAC support are mutually exclusive on SOCFPGA
> platforms. CONFIG_SOCFPGA_SUSPEND enables suspend-to-RAM and
> prevents selecting CONFIG_EDAC_ALTERA_MC.

Do we went to have the dependency at the .config time? We would like
to do generic kernels booting on many machines, this kind of breaks
that...

> + /*
> + * This code assumes that the bootloader has already
> + * properly configured the sdram controller:

Which bootloaders can do that?

> + * sdr.ctrlcfg.lowpwreq.selfrfshmask = 3
> + * sdr.ctrlcfg.lowpwrtiming.clkdisablecycles = 8
> + * sdr.ctrlcfg.dramtiming4.selfrfshexit = 512

Would it make sense to configure it in Linux?

Thanks,
Pavel
--
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