On Fri, Sep 01, 2017 at 10:42:44AM +0200, Simon Horman wrote: > On Fri, Sep 01, 2017 at 10:37:43AM +0200, Geert Uytterhoeven wrote: > > Hi all, > > > > This patch series enables SMP on R-Car E2 (r8a7794). > > The main hurdle here is that R-Car Gen2 boot loaders do not initialize the > > arch_timer CNTVOFF register, which thus needs workarounds on Linux. > > > > - The first patch adds a definition for MON_MODE, as suggested by Marc > > Zyngier, > > - The second patch makes sure CNTVOFF is initialized for boot and > > secondary Cortex-A15 and Cortex-A7 CPU cores, like is already done > > for the boot Cortex-A7 CPU core. Without this, the ARM arch timer > > does not work on secondary CPU cores. > > This patch depends on "[PATCH v2] ARM: shmobile: rcar-gen2: Correct > > arch timer frequency on RZ/G1E". > > - The third patch adds the required infrastructure (APMU device node > > and corresponding enable-method) to DT. > > Obviously this must not be applied on a branch that does not contain > > the first two patches! > > > > Due to dependencies, I think it is easiest if the ARM maintainers provide > > their Acked-by for patch 1, so the whole series can go in through Simon's > > Renesas tree. > > Thanks Geert, this merge strategy is fine by me. This patch-set has been floating around one form or another for quite some time now and this version is now well over a week old. I've gone ahead and applied the first two patches for v4.15: * ARM: Add definition for monitor mode * ARM: shmobile: rcar-gen2: Make sure CNTVOFF is initialized on CA7/15 I will push those to the devel branch of the renesas tree later today. I would like to deffer the third and last patch until v4.16 to avoid an awkward branch dependency on the above - the branches are different even though the tree is the same. Please resubmit this patch once the above dependencies are present in an rc release, which at this stage I expect to be v4.15-rc1. * ARM: dts: r8a7794: Add SMP support
