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From: Marek Szyprowski <m.szyprowski@samsung.com>
To: linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Cc: Chanwoo Choi <cw00.choi@samsung.com>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
	Krzysztof Kozlowski <krzk@kernel.org>,
	Marek Szyprowski <m.szyprowski@samsung.com>
Subject: [PATCH v2 1/2] ARM: dts: exynos: Add support ARM architected timers
Date: Mon, 26 Aug 2019 12:31:41 +0200	[thread overview]
Message-ID: <20190826103142.3477-3-m.szyprowski@samsung.com> (raw)
In-Reply-To: <20190826103142.3477-1-m.szyprowski@samsung.com>

All CortexA7/A15 based Exynos SoCs have ARM architected timers, so enable
support for them directly in the base dtsi for Exynos3250, Exynos5250
and Exynos54xx SoCs. None of the known firmware properly configures arch
timer registers, so mark them as not-fw-configured and set frequency
to 24MHz, which is the only configuration supported by the remaining
drivers (clocks) so far.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
---
 arch/arm/boot/dts/exynos3250.dtsi | 10 ++++++++++
 arch/arm/boot/dts/exynos5250.dtsi |  1 +
 arch/arm/boot/dts/exynos54xx.dtsi | 10 ++++++++++
 3 files changed, 21 insertions(+)

diff --git a/arch/arm/boot/dts/exynos3250.dtsi b/arch/arm/boot/dts/exynos3250.dtsi
index 5659c4a10729..01e06b49d702 100644
--- a/arch/arm/boot/dts/exynos3250.dtsi
+++ b/arch/arm/boot/dts/exynos3250.dtsi
@@ -132,6 +132,16 @@
 			     <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
 	};
 
+	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)>;
+		clock-frequency = <24000000>;
+		arm,cpu-registers-not-fw-configured;
+	};
+
 	soc: soc {
 		compatible = "simple-bus";
 		#address-cells = <1>;
diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index 4157a1315db9..f78897413cbc 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -1089,6 +1089,7 @@
 		 * so we need the value from DT.
 		 */
 		clock-frequency = <24000000>;
+		arm,cpu-registers-not-fw-configured;
 	};
 };
 
diff --git a/arch/arm/boot/dts/exynos54xx.dtsi b/arch/arm/boot/dts/exynos54xx.dtsi
index 9c3b63b7cac6..4e6c29530632 100644
--- a/arch/arm/boot/dts/exynos54xx.dtsi
+++ b/arch/arm/boot/dts/exynos54xx.dtsi
@@ -45,6 +45,16 @@
 		status = "disabled";
 	};
 
+	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)>;
+		clock-frequency = <24000000>;
+		arm,cpu-registers-not-fw-configured;
+	};
+
 	soc: soc {
 		sysram@2020000 {
 			compatible = "mmio-sram";
-- 
2.17.1

WARNING: multiple messages have this Message-ID (diff)
From: Marek Szyprowski <m.szyprowski@samsung.com>
To: linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Cc: Chanwoo Choi <cw00.choi@samsung.com>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
	Krzysztof Kozlowski <krzk@kernel.org>,
	Marek Szyprowski <m.szyprowski@samsung.com>
Subject: [PATCH v2 1/2] ARM: dts: exynos: Add support ARM architected timers
Date: Mon, 26 Aug 2019 12:31:41 +0200	[thread overview]
Message-ID: <20190826103142.3477-3-m.szyprowski@samsung.com> (raw)
In-Reply-To: <20190826103142.3477-1-m.szyprowski@samsung.com>

All CortexA7/A15 based Exynos SoCs have ARM architected timers, so enable
support for them directly in the base dtsi for Exynos3250, Exynos5250
and Exynos54xx SoCs. None of the known firmware properly configures arch
timer registers, so mark them as not-fw-configured and set frequency
to 24MHz, which is the only configuration supported by the remaining
drivers (clocks) so far.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
---
 arch/arm/boot/dts/exynos3250.dtsi | 10 ++++++++++
 arch/arm/boot/dts/exynos5250.dtsi |  1 +
 arch/arm/boot/dts/exynos54xx.dtsi | 10 ++++++++++
 3 files changed, 21 insertions(+)

diff --git a/arch/arm/boot/dts/exynos3250.dtsi b/arch/arm/boot/dts/exynos3250.dtsi
index 5659c4a10729..01e06b49d702 100644
--- a/arch/arm/boot/dts/exynos3250.dtsi
+++ b/arch/arm/boot/dts/exynos3250.dtsi
@@ -132,6 +132,16 @@
 			     <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
 	};
 
+	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)>;
+		clock-frequency = <24000000>;
+		arm,cpu-registers-not-fw-configured;
+	};
+
 	soc: soc {
 		compatible = "simple-bus";
 		#address-cells = <1>;
diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index 4157a1315db9..f78897413cbc 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -1089,6 +1089,7 @@
 		 * so we need the value from DT.
 		 */
 		clock-frequency = <24000000>;
+		arm,cpu-registers-not-fw-configured;
 	};
 };
 
diff --git a/arch/arm/boot/dts/exynos54xx.dtsi b/arch/arm/boot/dts/exynos54xx.dtsi
index 9c3b63b7cac6..4e6c29530632 100644
--- a/arch/arm/boot/dts/exynos54xx.dtsi
+++ b/arch/arm/boot/dts/exynos54xx.dtsi
@@ -45,6 +45,16 @@
 		status = "disabled";
 	};
 
+	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)>;
+		clock-frequency = <24000000>;
+		arm,cpu-registers-not-fw-configured;
+	};
+
 	soc: soc {
 		sysram@2020000 {
 			compatible = "mmio-sram";
-- 
2.17.1


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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2019-08-26 10:31 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20190826103201eucas1p1358f33d8fbdc8cef8ba2ebdcb1b3a51a@eucas1p1.samsung.com>
2019-08-26 10:31 ` [PATCH 0/5] Exynos SoCs: enable support for ARM Architected Timers Marek Szyprowski
2019-08-26 10:31   ` Marek Szyprowski
     [not found]   ` <CGME20190826103202eucas1p123d075e3da50b5aa1574ae46aa6aa946@eucas1p1.samsung.com>
2019-08-26 10:31     ` [PATCH v2 0/2] " Marek Szyprowski
2019-08-26 10:31       ` Marek Szyprowski
     [not found]   ` <CGME20190826103202eucas1p16bd422bd505086e9ee27f528a8b48d57@eucas1p1.samsung.com>
2019-08-26 10:31     ` Marek Szyprowski [this message]
2019-08-26 10:31       ` [PATCH v2 1/2] ARM: dts: exynos: Add support ARM architected timers Marek Szyprowski
     [not found]   ` <CGME20190826103203eucas1p2d67b0ef44758eb06252b340f7751701a@eucas1p2.samsung.com>
2019-08-26 10:31     ` [PATCH v2 2/2] ARM: exynos: Enable support for " Marek Szyprowski
2019-08-26 10:31       ` Marek Szyprowski
2019-08-26 10:49       ` Marc Zyngier
2019-08-26 10:49         ` Marc Zyngier
2019-08-28  8:22         ` Marek Szyprowski
2019-08-28  8:22           ` Marek Szyprowski

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