On Thursday, February 16, 2017, Russell King wrote: > On Thu, Feb 16, 2017 at 05:57:53PM +0100, Arnd Bergmann wrote: > > On Thu, Feb 16, 2017 at 5:44 PM, Russell King - ARM Linux > > <linux@xxxxxxxxxxxxxxx> wrote: > > > On Thu, Feb 16, 2017 at 11:17:39AM -0500, Chris Brandt wrote: > > >> The PL310 in the Renesas RZ/A1 SoC (R7S72100) does not have the > > >> sideband signals connected between the CPU and L2C. According the > > >> PL310 TRM, sideband signals are optional. > > >> > > >> If a PL310 is added to a system, but the sideband signals are not > > >> connected, some Cortex A9 optimizations cannot be used. In > > >> particular, enabling Full Line Zeros in the CA9 without sidebands > > >> connected will crash the system since the CA9 will expect the L2C > > >> to perform operations, yet the L2C never gets the commands. > > >> > > >> This series adds the option to not enable anything in the PL310 > > >> that uses sidebands, and then adds L2C support to the RZ/A1 DT. > > >> > > >> v4: > > >> * changed l2x0_bresp_dis to l2x0_bresp_disable > > >> * changed l2x0_flz_dis to l2x0_flz_disable > > > > > > Looks good, thanks. > > > > > > I'll want to merge patch 1, but I suspect the other two patches need > > > to go through arm-soc, which will cause a problem due to being > > > merged independently... Arnd? > > > > I just checked what we have queued up in next/dt for this platform, > > and I'm fairly sure that there are no conflicts, so you can pick up > > all three and add > > > > Acked-by: Arnd Bergmann <arnd@xxxxxxxx> > > Chris, can you put all three in the patch system, preferably with Arnd's > ack for the last two please? > > Thanks. These are still sitting in the patch system. Was there something wrong with them that they would not go into 4.11? Chris
