On Fri, Oct 16, 2015 at 04:27:31PM -0600, Simon Glass wrote: > Hi Linus, > > On 16 October 2015 at 15:23, Linus Walleij <linus.wall...@linaro.org> wrote: > > On Wed, Oct 14, 2015 at 6:55 PM, Sergey Temerkhanov > > <s.temerkha...@gmail.com> wrote: > > > >> On some systems, UART initialization is performed before running U-Boot. > >> This commit allows to skip UART re-initializaion on those systems > >> > >> Signed-off-by: Sergey Temerkhanov <s.temerkha...@gmail.com> > >> Signed-off-by: Radha Mohan Chintakuntla <rchintakun...@cavium.com> > >> > >> Reviewed-by: Simon Glass <s...@chromium.org> > > (...) > > > >> diff --git a/doc/device-tree-bindings/serial/pl01x.txt > >> b/doc/device-tree-bindings/serial/pl01x.txt > >> index 61c27d1..0591497 100644 > >> --- a/doc/device-tree-bindings/serial/pl01x.txt > >> +++ b/doc/device-tree-bindings/serial/pl01x.txt > >> @@ -5,3 +5,6 @@ Required properties: > >> - reg: exactly one register range with length 0x1000 > >> - clock: input clock frequency for the UART (used to calculate the baud > >> rate divisor) > >> + > >> +Optional properties: > >> +- u-boot,skip-init: skip UART initialization at start. > > > > Again: get this merged in the Linux kernel FIRST. Is it? > > We had a little bit of a chat about this at ELCE. It would be great to > get these changes merged with the kernel but the amount of > push-back/energy it requires is still excessive IMO. Any thoughts?
But it also requires that we try. Did we try here? My first thought is that there's a number of things it would be nice to say "don't re-init stuff" to the kernel as well. -- Tom
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