[U-Boot] [PATCH] Revert "sunxi: dram: Use divisor P=1 for PLL5"

Ian Campbell
2014-10-22T09:19:18Z

On Wed, 2014-10-22 at 10:35 +0200, Hans de Goede wrote:
> Hi,
>
> On 10/22/2014 10:14 AM, Ian Campbell wrote:
> > On Tue, 2014-10-21 at 16:58 -0400, Tom Rini wrote:
> >> We should be doing things right, in mainline. To bring up a different
> >> example, on TI OMAP4 parts at least for a long time in order to use
> >> mainline U-Boot on older kernels you had to manually add
> >> CONFIG_SOMETHING_OR_ANOTHER to enable additional clocks/mux that the old
> >> kernels had incorrectly relied on U-Boot to set. If we must do strange
> >> things to support old and incorrect but in the wild kernels we need to
> >> (a) make it opt-in (easier now with Kconfig!) and (b) schedule a removal
> >> of the hack all the same.
> >
> > A Kconfig option does sound like a reasonable compromise.
>
> Ok, I will look into this, my plan for now is to call it OLD_KERNEL_COMPAT,
> so that if we come across more cases like this we've one config option for
> them, rather then a ton of small isolated config options.

Is it particular to "old" kernels as such, or is it more to do with
Allwinner SDK (and derived) kernels? Is it worth trying to keep
workarounds for such kernels separated from workarounds for old mainline
kernels?

Ian.