Hi Dirk, On Tue, Dec 15, 2015 at 5:48 PM, Dirk Behme <dirk.behme@xxxxxxxxx> wrote: > On 15.12.2015 09:38, Magnus Damm wrote: >> >> Hi Simon, >> >> On Sat, Dec 12, 2015 at 8:07 AM, Simon Horman <horms@xxxxxxxxxxxx> wrote: >>> >>> On Fri, Dec 04, 2015 at 02:38:52PM +0100, Dirk Behme wrote: >>>> >>>> From: Gaku Inami <gaku.inami.xw@xxxxxxxxxxxxxx> >>>> >>>> Add Cortex-A57 CPU cores to r8a7795 SoC for a total of 4 x Cortex-A57. >>>> >>>> Signed-off-by: Gaku Inami <gaku.inami.xw@xxxxxxxxxxxxxx> >>>> Signed-off-by: Takeshi Kihara <takeshi.kihara.df@xxxxxxxxxxx> >>>> Sigend-off-by: Dirk Behme <dirk.behme@xxxxxxxxx> >>> >>> >>> Thanks, I have queued this up for v4.5. >> >> >> Thanks. May I ask if CPU hotplug is known to work? > > > > I didn't test that. Ok, no worries. I feel that there are various CPU related features that need a bit of testing to make sure support is stable enough to enable without causing issues for other on-going development. CPU Hotplug is one of those, another is kernel command line options like maxcpus, and kexec would be good to have working as well. To make things a bit more complicated, there is a rather complicated software stack with trusted code installed by the boot loader, so there is a dependency on that as well. On earlier SoCs from previous generations there were issues with shared reset vectors and a watchdog, so SMP support may affect watchdog too... >> Also, which version >> of the boot loader stack is required? > > I've the U-Boot / boot loader stack from BSP v3.0.2 on the board. I haven't > tested v3.0.3, yet. Thanks for sharing! Cheers, / magnus -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
