diff options
| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2018-05-07 15:57:01 +0200 |
|---|---|---|
| committer | Simon Horman <horms+renesas@verge.net.au> | 2018-05-14 16:40:41 +0200 |
| commit | 5b68384469af764caa2c02f2c651409c6930c767 (patch) | |
| tree | 9720d389e5f441f1eb41ea9ad6914db3e5f9461b /arch/arm/boot/dts/r8a7790.dtsi | |
| parent | 74a0e50d70aa8f7baeaad7a5c5f7d6bdaf92ff1a (diff) | |
| download | linux-5b68384469af764caa2c02f2c651409c6930c767.tar.gz | |
ARM: dts: r8a7790: Add PMU device nodes
Enable support for the ARM Performance Monitor Units in the Cortex-A15
and Cortex-A7 CPU cores on R-Car H2 by adding device nodes for the two
PMUs.
New Linux output:
hw perfevents: enabled with armv7_cortex_a15 PMU driver, 7 counters available
hw perfevents: /pmu-1: failed to probe PMU!
hw perfevents: /pmu-1: failed to register PMU devices!
The last two lines are due to the Cortex-A7 CPU cores being described in
DT, but not enabled by the firmware.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Diffstat (limited to 'arch/arm/boot/dts/r8a7790.dtsi')
| -rw-r--r-- | arch/arm/boot/dts/r8a7790.dtsi | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/r8a7790.dtsi b/arch/arm/boot/dts/r8a7790.dtsi index 0a426548a212..ae97ec146260 100644 --- a/arch/arm/boot/dts/r8a7790.dtsi +++ b/arch/arm/boot/dts/r8a7790.dtsi @@ -202,6 +202,24 @@ clock-frequency = <0>; }; + pmu-0 { + compatible = "arm,cortex-a15-pmu"; + interrupts-extended = <&gic GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>, + <&gic GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>, + <&gic GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>, + <&gic GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>; + interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>; + }; + + pmu-1 { + compatible = "arm,cortex-a7-pmu"; + interrupts-extended = <&gic GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>, + <&gic GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>, + <&gic GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>, + <&gic GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>; + interrupt-affinity = <&cpu4>, <&cpu5>, <&cpu6>, <&cpu7>; + }; + /* External SCIF clock */ scif_clk: scif { compatible = "fixed-clock"; |