This enables the L2 cache controller available in Amlogic SoCs. Signed-off-by: Beniamino Galvani <b.galvani@xxxxxxxxx> --- arch/arm/boot/dts/meson.dtsi | 7 +++++++ arch/arm/boot/dts/meson6.dtsi | 2 ++ arch/arm/boot/dts/meson8.dtsi | 4 ++++ arch/arm/mach-meson/Kconfig | 1 + arch/arm/mach-meson/meson.c | 2 ++ 5 files changed, 16 insertions(+) diff --git a/arch/arm/boot/dts/meson.dtsi b/arch/arm/boot/dts/meson.dtsi index 55feb14..7d27f12 100644 --- a/arch/arm/boot/dts/meson.dtsi +++ b/arch/arm/boot/dts/meson.dtsi @@ -50,6 +50,13 @@ / { interrupt-parent = <&gic>; + L2: l2-cache-controller@c4200000 { + compatible = "arm,pl310-cache"; + reg = <0xc4200000 0x1000>; + cache-unified; + cache-level = <2>; + }; + gic: interrupt-controller@c4301000 { compatible = "arm,cortex-a9-gic"; reg = <0xc4301000 0x1000>, diff --git a/arch/arm/boot/dts/meson6.dtsi b/arch/arm/boot/dts/meson6.dtsi index 4ba4912..8b33be1 100644 --- a/arch/arm/boot/dts/meson6.dtsi +++ b/arch/arm/boot/dts/meson6.dtsi @@ -60,12 +60,14 @@ cpu@200 { device_type = "cpu"; compatible = "arm,cortex-a9"; + next-level-cache = <&L2>; reg = <0x200>; }; cpu@201 { device_type = "cpu"; compatible = "arm,cortex-a9"; + next-level-cache = <&L2>; reg = <0x201>; }; }; diff --git a/arch/arm/boot/dts/meson8.dtsi b/arch/arm/boot/dts/meson8.dtsi index 42e4026..1f442a7 100644 --- a/arch/arm/boot/dts/meson8.dtsi +++ b/arch/arm/boot/dts/meson8.dtsi @@ -58,24 +58,28 @@ cpu@200 { device_type = "cpu"; compatible = "arm,cortex-a9"; + next-level-cache = <&L2>; reg = <0x200>; }; cpu@201 { device_type = "cpu"; compatible = "arm,cortex-a9"; + next-level-cache = <&L2>; reg = <0x201>; }; cpu@202 { device_type = "cpu"; compatible = "arm,cortex-a9"; + next-level-cache = <&L2>; reg = <0x202>; }; cpu@203 { device_type = "cpu"; compatible = "arm,cortex-a9"; + next-level-cache = <&L2>; reg = <0x203>; }; }; diff --git a/arch/arm/mach-meson/Kconfig b/arch/arm/mach-meson/Kconfig index b289e8e..18301dc 100644 --- a/arch/arm/mach-meson/Kconfig +++ b/arch/arm/mach-meson/Kconfig @@ -2,6 +2,7 @@ menuconfig ARCH_MESON bool "Amlogic Meson SoCs" if ARCH_MULTI_V7 select GENERIC_IRQ_CHIP select ARM_GIC + select CACHE_L2X0 if ARCH_MESON diff --git a/arch/arm/mach-meson/meson.c b/arch/arm/mach-meson/meson.c index 8f42d8f..5d6affe 100644 --- a/arch/arm/mach-meson/meson.c +++ b/arch/arm/mach-meson/meson.c @@ -24,4 +24,6 @@ static const char * const meson_common_board_compat[] = { DT_MACHINE_START(MESON, "Amlogic Meson platform") .dt_compat = meson_common_board_compat, + .l2c_aux_val = 0, + .l2c_aux_mask = ~0, MACHINE_END -- 1.9.1 -- 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