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From: Bert Vermeulen <bert@biot.com>
To: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	Arnd Bergmann <arnd@arndb.de>, Olof Johansson <olof@lixom.net>,
	soc@kernel.org, Rob Herring <robh+dt@kernel.org>
Cc: Bert Vermeulen <bert@biot.com>, John Crispin <john@phrozen.org>,
	Felix Fietkau <nbd@nbd.name>
Subject: [PATCH 3/5] ARM: dts: Add basic support for EcoNet EN7523
Date: Fri, 30 Jul 2021 15:45:50 +0200	[thread overview]
Message-ID: <20210730134552.853350-4-bert@biot.com> (raw)
In-Reply-To: <20210730134552.853350-1-bert@biot.com>

From: John Crispin <john@phrozen.org>

Add basic support for EcoNet EN7523, enough for booting to console.

The UART is basically 8250-compatible, except for the clock selection.
A clock-frequency value is synthesized to get this to run at 115200 bps.

Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Bert Vermeulen <bert@biot.com>
---
 arch/arm/boot/dts/Makefile       |   2 +
 arch/arm/boot/dts/en7523-evb.dts |  17 ++++
 arch/arm/boot/dts/en7523.dtsi    | 128 +++++++++++++++++++++++++++++++
 3 files changed, 147 insertions(+)
 create mode 100644 arch/arm/boot/dts/en7523-evb.dts
 create mode 100644 arch/arm/boot/dts/en7523.dtsi

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 863347b6b65e..3eeb7715c6ce 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -174,6 +174,8 @@ dtb-$(CONFIG_ARCH_DAVINCI) += \
 	da850-lego-ev3.dtb
 dtb-$(CONFIG_ARCH_DIGICOLOR) += \
 	cx92755_equinox.dtb
+dtb-$(CONFIG_ARCH_ECONET) += \
+	en7523-evb.dtb
 dtb-$(CONFIG_ARCH_EXYNOS3) += \
 	exynos3250-artik5-eval.dtb \
 	exynos3250-monk.dtb \
diff --git a/arch/arm/boot/dts/en7523-evb.dts b/arch/arm/boot/dts/en7523-evb.dts
new file mode 100644
index 000000000000..c5b75eb3715e
--- /dev/null
+++ b/arch/arm/boot/dts/en7523-evb.dts
@@ -0,0 +1,17 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+#include "en7523.dtsi"
+
+/ {
+	model = "Econet EN7523 Evaluation Board";
+	compatible = "econet,en7523-evb", "econet,en7523";
+
+	aliases {
+		serial0 = &uart1;
+	};
+
+	chosen {
+		bootargs = "earlycon=uart8250,mmio32,0x1fbf0000 console=ttyS0,115200";
+		stdout-path = "serial0:115200n8";
+	};
+};
diff --git a/arch/arm/boot/dts/en7523.dtsi b/arch/arm/boot/dts/en7523.dtsi
new file mode 100644
index 000000000000..f4fe1c6f66e8
--- /dev/null
+++ b/arch/arm/boot/dts/en7523.dtsi
@@ -0,0 +1,128 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+	interrupt-parent = <&gic>;
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	reserved-memory {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		npu_binary@84000000 {
+			no-map;
+			reg = <0x84000000 0xA00000>;
+		};
+
+		npu_flag@84B0000 {
+			no-map;
+			reg = <0x84B00000 0x100000>;
+		};
+
+		npu_pkt@85000000 {
+			no-map;
+			reg = <0x85000000 0x1A00000>;
+		};
+
+		npu_phyaddr@86B00000 {
+			no-map;
+			reg = <0x86B00000 0x100000>;
+		};
+
+		npu_rxdesc@86D00000 {
+			no-map;
+			reg = <0x86D00000 0x100000>;
+		};
+	};
+
+	psci {
+		compatible = "arm,psci-0.2";
+		method = "smc";
+	};
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu-map {
+			cluster0 {
+				core0 {
+					cpu = <&cpu0>;
+				};
+				core1 {
+					cpu = <&cpu1>;
+				};
+			};
+		};
+
+		cpu0: cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a7";
+			reg = <0x0>;
+			enable-method = "psci";
+			clock-frequency = <80000000>;
+			next-level-cache = <&L2_0>;
+
+		};
+
+		cpu1: cpu@1 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a7";
+			reg = <0x1>;
+			enable-method = "psci";
+			clock-frequency = <80000000>;
+			next-level-cache = <&L2_0>;
+		};
+
+		L2_0: l2-cache0 {
+			compatible = "cache";
+		};
+	};
+
+	gic: interrupt-controller@09000000 {
+		compatible = "arm,gic-v3";
+		interrupt-controller;
+		#interrupt-cells = <3>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		reg = <0x09000000 0x20000>,
+			  <0x09080000 0x80000>;
+		interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_LOW>;
+
+		its: gic-its@09020000 {
+			compatible = "arm,gic-v3-its";
+			msi-controller;
+			#msi-cell = <1>;
+			reg = <0x090200000 0x20000>;
+		};
+	};
+
+	timer {
+		compatible = "arm,armv8-timer";
+		interrupt-parent = <&gic>;
+		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 = <25000000>;
+	};
+
+	memory@80000000 {
+		device_type = "memory";
+		reg = <0x80000000 0x40000000>;
+	};
+
+	uart1: serial@1fbf0000 {
+		compatible = "ns8250";
+		reg = <0x1fbf0000 0x30>;
+		reg-io-width = <4>;
+		reg-shift = <2>;
+		interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>;
+		clock-frequency = <1843200>;
+		status = "okay";
+	};
+};
-- 
2.25.1


  parent reply	other threads:[~2021-07-30 13:53 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-30 13:45 [PATCH 0/4] Add support for EcoNet EN7523 SoC Bert Vermeulen
2021-07-30 13:45 ` [PATCH 1/5] dt-bindings: Add vendor prefix for EcoNet Bert Vermeulen
2021-08-06 21:02   ` Rob Herring
2021-07-30 13:45 ` [PATCH 2/5] dt-bindings: arm: econet: Add binding for EN7523 SoC and EVB Bert Vermeulen
2021-08-06 21:04   ` Rob Herring
2021-07-30 13:45 ` Bert Vermeulen [this message]
2021-07-30 14:31   ` [PATCH 3/5] ARM: dts: Add basic support for EcoNet EN7523 Linus Walleij
     [not found]     ` <87y29n26po.wl-maz@kernel.org>
2021-08-01  9:07       ` Bert Vermeulen
2021-08-01  9:40         ` Arnd Bergmann
2021-07-30 14:45   ` Daniel Palmer
2021-07-30 14:46   ` Mark Rutland
2021-08-04 16:41     ` Bert Vermeulen
2021-08-06 20:59       ` Rob Herring
2021-07-30 14:59   ` Mark Rutland
2021-08-06 20:52     ` Rob Herring
2021-07-30 16:47   ` Andre Przywara
2021-07-30 13:45 ` [PATCH 4/5] ARM: Add basic support for EcoNet EN7523 SoC Bert Vermeulen
2021-07-30 14:48   ` Arnd Bergmann
2021-07-30 15:15     ` John Crispin
2021-07-30 16:55       ` Arnd Bergmann
2021-08-01 16:44     ` Ard Biesheuvel
2021-09-03 16:20       ` Felix Fietkau
2021-09-03 17:47         ` Ard Biesheuvel
2021-08-04 16:43     ` Bert Vermeulen
2021-08-09 12:46       ` Geert Uytterhoeven
2021-08-09 12:49         ` Ard Biesheuvel
2021-08-09 13:00         ` Bert Vermeulen
2021-07-30 13:45 ` [PATCH 5/5] ARM: multi_v7_defconfig: Add " Bert Vermeulen
2021-07-30 14:26 ` [PATCH 0/4] " Linus Walleij

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