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Date: Tue, 23 Apr 2019 14:58:31 +0200
From: Marek Szyprowski <m.szyprowski@...sung.com>
To: Krzysztof Kozlowski <krzk@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Kukjin Kim <kgene@...nel.org>,
Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
Sylwester Nawrocki <s.nawrocki@...sung.com>,
Chanwoo Choi <cw00.choi@...sung.com>,
Andrzej Hajda <a.hajda@...sung.com>,
devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/4] ARM: dts: exynos: Move pmu and timer nodes out of
soc
On 2019-04-15 20:05, Krzysztof Kozlowski wrote:
> The ARM PMU and ARM architected timer nodes are part of ARM CPU design
> therefore they should not be inside the soc node. This also fixes DTC
> W=1 warnings like:
>
> arch/arm/boot/dts/exynos3250.dtsi:106.21-135.5:
> Warning (simple_bus_reg): /soc/fixed-rate-clocks: missing or empty reg/ranges property
> arch/arm/boot/dts/exynos3250.dtsi:676.7-680.5:
> Warning (simple_bus_reg): /soc/pmu: missing or empty reg/ranges property
>
> Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>
Tested-by: Marek Szyprowski <m.szyprowski@...sung.com>
> ---
> arch/arm/boot/dts/exynos3250.dtsi | 12 +++++-----
> arch/arm/boot/dts/exynos4.dtsi | 12 +++++-----
> arch/arm/boot/dts/exynos5250.dtsi | 40 +++++++++++++++----------------
> arch/arm/boot/dts/exynos54xx.dtsi | 38 ++++++++++++++---------------
> 4 files changed, 51 insertions(+), 51 deletions(-)
>
> diff --git a/arch/arm/boot/dts/exynos3250.dtsi b/arch/arm/boot/dts/exynos3250.dtsi
> index 5892a9f7622f..af54b306204b 100644
> --- a/arch/arm/boot/dts/exynos3250.dtsi
> +++ b/arch/arm/boot/dts/exynos3250.dtsi
> @@ -97,6 +97,12 @@
> };
> };
>
> + pmu {
> + compatible = "arm,cortex-a7-pmu";
> + interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
> + };
> +
> soc: soc {
> compatible = "simple-bus";
> #address-cells = <1>;
> @@ -673,12 +679,6 @@
> status = "disabled";
> };
>
> - pmu {
> - compatible = "arm,cortex-a7-pmu";
> - interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>,
> - <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
> - };
> -
> ppmu_dmc0: ppmu_dmc0@...a0000 {
> compatible = "samsung,exynos-ppmu";
> reg = <0x106a0000 0x2000>;
> diff --git a/arch/arm/boot/dts/exynos4.dtsi b/arch/arm/boot/dts/exynos4.dtsi
> index 6085e92ac2d7..1c21627e3c3c 100644
> --- a/arch/arm/boot/dts/exynos4.dtsi
> +++ b/arch/arm/boot/dts/exynos4.dtsi
> @@ -51,6 +51,12 @@
> serial3 = &serial_3;
> };
>
> + pmu: pmu {
> + compatible = "arm,cortex-a9-pmu";
> + interrupt-parent = <&combiner>;
> + interrupts = <2 2>, <3 2>;
> + };
> +
> soc: soc {
> compatible = "simple-bus";
> #address-cells = <1>;
> @@ -169,12 +175,6 @@
> reg = <0x10440000 0x1000>;
> };
>
> - pmu: pmu {
> - compatible = "arm,cortex-a9-pmu";
> - interrupt-parent = <&combiner>;
> - interrupts = <2 2>, <3 2>;
> - };
> -
> sys_reg: syscon@...10000 {
> compatible = "samsung,exynos4-sysreg", "syscon";
> reg = <0x10010000 0x400>;
> diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
> index 80986b97dfe5..96ace6a5e2f9 100644
> --- a/arch/arm/boot/dts/exynos5250.dtsi
> +++ b/arch/arm/boot/dts/exynos5250.dtsi
> @@ -157,6 +157,26 @@
> };
> };
>
> + pmu {
> + compatible = "arm,cortex-a15-pmu";
> + interrupt-parent = <&combiner>;
> + interrupts = <1 2>, <22 4>;
> + };
> +
> + timer {
> + compatible = "arm,armv7-timer";
> + interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
> + <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
> + <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
> + <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
> + /*
> + * Unfortunately we need this since some versions
> + * of U-Boot on Exynos don't set the CNTFRQ register,
> + * so we need the value from DT.
> + */
> + clock-frequency = <24000000>;
> + };
> +
> soc: soc {
> sysram@...0000 {
> compatible = "mmio-sram";
> @@ -227,20 +247,6 @@
> power-domains = <&pd_mau>;
> };
>
> - timer {
> - compatible = "arm,armv7-timer";
> - interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
> - <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
> - <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
> - <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
> - /*
> - * Unfortunately we need this since some versions
> - * of U-Boot on Exynos don't set the CNTFRQ register,
> - * so we need the value from DT.
> - */
> - clock-frequency = <24000000>;
> - };
> -
> mct@...c0000 {
> compatible = "samsung,exynos4210-mct";
> reg = <0x101C0000 0x800>;
> @@ -265,12 +271,6 @@
> };
> };
>
> - pmu {
> - compatible = "arm,cortex-a15-pmu";
> - interrupt-parent = <&combiner>;
> - interrupts = <1 2>, <22 4>;
> - };
> -
> pinctrl_0: pinctrl@...00000 {
> compatible = "samsung,exynos5250-pinctrl";
> reg = <0x11400000 0x1000>;
> diff --git a/arch/arm/boot/dts/exynos54xx.dtsi b/arch/arm/boot/dts/exynos54xx.dtsi
> index de26e5ee0d2d..ae866bcc30c4 100644
> --- a/arch/arm/boot/dts/exynos54xx.dtsi
> +++ b/arch/arm/boot/dts/exynos54xx.dtsi
> @@ -25,27 +25,27 @@
> usbdrdphy1 = &usbdrd_phy1;
> };
>
> - soc: soc {
> - arm_a7_pmu: arm-a7-pmu {
> - compatible = "arm,cortex-a7-pmu";
> - interrupt-parent = <&gic>;
> - interrupts = <GIC_SPI 160 IRQ_TYPE_LEVEL_HIGH>,
> - <GIC_SPI 161 IRQ_TYPE_LEVEL_HIGH>,
> - <GIC_SPI 162 IRQ_TYPE_LEVEL_HIGH>,
> - <GIC_SPI 163 IRQ_TYPE_LEVEL_HIGH>;
> - status = "disabled";
> - };
> + arm_a7_pmu: arm-a7-pmu {
> + compatible = "arm,cortex-a7-pmu";
> + interrupt-parent = <&gic>;
> + interrupts = <GIC_SPI 160 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 161 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 162 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 163 IRQ_TYPE_LEVEL_HIGH>;
> + status = "disabled";
> + };
>
> - arm_a15_pmu: arm-a15-pmu {
> - compatible = "arm,cortex-a15-pmu";
> - interrupt-parent = <&combiner>;
> - interrupts = <1 2>,
> - <7 0>,
> - <16 6>,
> - <19 2>;
> - status = "disabled";
> - };
> + arm_a15_pmu: arm-a15-pmu {
> + compatible = "arm,cortex-a15-pmu";
> + interrupt-parent = <&combiner>;
> + interrupts = <1 2>,
> + <7 0>,
> + <16 6>,
> + <19 2>;
> + status = "disabled";
> + };
>
> + soc: soc {
> sysram@...0000 {
> compatible = "mmio-sram";
> reg = <0x02020000 0x54000>;
Best regards
--
Marek Szyprowski, PhD
Samsung R&D Institute Poland
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