Re: [PATCH/RFC 4/4] [WIP] ARM: shmobile: Enable ARM_GLOBAL_TIMER on Cortex-A9 MPCore SoCs

2018-08-21 Thread Geert Uytterhoeven
On Tue, Jul 31, 2018 at 6:08 PM Geert Uytterhoeven wrote: > SH-Mobile AG5 and R-Car H1 SoCs are based on the Cortex-A9 MPCore, which > includes a global timer. > > Enable the ARM global timer on these SoCs, which will be used for: > - the scheduler clock, improving scheduler accuracy from 10 ms

[PATCH/RFC 4/4] [WIP] ARM: shmobile: Enable ARM_GLOBAL_TIMER on Cortex-A9 MPCore SoCs

2018-07-31 Thread Geert Uytterhoeven
SH-Mobile AG5 and R-Car H1 SoCs are based on the Cortex-A9 MPCore, which includes a global timer. Enable the ARM global timer on these SoCs, which will be used for: - the scheduler clock, improving scheduler accuracy from 10 ms to 3 or 4 ns, - delay loops, allowing removal of calls to