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From: Felix Fietkau <nbd@nbd.name>
To: 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: john@phrozen.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH v6 03/14] ARM: dts: Add basic support for Airoha EN7523
Date: Fri,  3 Dec 2021 12:33:20 +0100	[thread overview]
Message-ID: <20211203113331.20510-4-nbd@nbd.name> (raw)
In-Reply-To: <20211203113331.20510-1-nbd@nbd.name>

From: John Crispin <john@phrozen.org>

Add basic support for Airoha 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 |  27 ++++++++
 arch/arm/boot/dts/en7523.dtsi    | 114 +++++++++++++++++++++++++++++++
 3 files changed, 143 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 0de64f237cd8..81cb49f8d6fd 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -186,6 +186,8 @@ dtb-$(CONFIG_ARCH_DAVINCI) += \
 	da850-lego-ev3.dtb
 dtb-$(CONFIG_ARCH_DIGICOLOR) += \
 	cx92755_equinox.dtb
+dtb-$(CONFIG_ARCH_AIROHA) += \
+	en7523-evb.dtb
 dtb-$(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..69754ef9a628
--- /dev/null
+++ b/arch/arm/boot/dts/en7523-evb.dts
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+/dts-v1/;
+
+/* Bootloader installs ATF here */
+/memreserve/ 0x80000000 0x200000;
+
+#include "en7523.dtsi"
+
+/ {
+	model = "Airoha EN7523 Evaluation Board";
+	compatible = "airoha,en7523-evb", "airoha,en7523";
+
+	aliases {
+		serial0 = &uart1;
+	};
+
+	chosen {
+		bootargs = "console=ttyS0,115200 earlycon";
+		stdout-path = "serial0:115200n8";
+		linux,usable-memory-range = <0x80200000 0x1fe00000>;
+	};
+
+	memory@80000000 {
+		device_type = "memory";
+		reg = <0x80000000 0x20000000>;
+	};
+};
diff --git a/arch/arm/boot/dts/en7523.dtsi b/arch/arm/boot/dts/en7523.dtsi
new file mode 100644
index 000000000000..7e17311a3f90
--- /dev/null
+++ b/arch/arm/boot/dts/en7523.dtsi
@@ -0,0 +1,114 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+
+#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-a53";
+			reg = <0x0>;
+			enable-method = "psci";
+			clock-frequency = <80000000>;
+			next-level-cache = <&L2_0>;
+		};
+
+		cpu1: cpu@1 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53";
+			reg = <0x1>;
+			enable-method = "psci";
+			clock-frequency = <80000000>;
+			next-level-cache = <&L2_0>;
+		};
+
+		L2_0: l2-cache0 {
+			compatible = "cache";
+		};
+	};
+
+	gic: interrupt-controller@9000000 {
+		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>;
+	};
+
+	timer {
+		compatible = "arm,armv7-timer";
+		interrupt-parent = <&gic>;
+		interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_LOW>,
+			     <GIC_PPI 14 IRQ_TYPE_LEVEL_LOW>,
+			     <GIC_PPI 11 IRQ_TYPE_LEVEL_LOW>,
+			     <GIC_PPI 10 IRQ_TYPE_LEVEL_LOW>;
+		clock-frequency = <25000000>;
+	};
+
+	uart1: serial@1fbf0000 {
+		compatible = "ns16550";
+		reg = <0x1fbf0000 0x30>;
+		reg-io-width = <4>;
+		reg-shift = <2>;
+		interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>;
+		clock-frequency = <1843200>;
+		status = "okay";
+	};
+};
-- 
2.30.1


  parent reply	other threads:[~2021-12-03 11:33 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20211203113331.20510-1-nbd@nbd.name>
2021-12-03 11:33 ` [PATCH v6 01/14] dt-bindings: Add vendor prefix for Airoha Felix Fietkau
2021-12-03 11:33 ` [PATCH v6 02/14] dt-bindings: arm: airoha: Add binding for EN7523 SoC and EVB Felix Fietkau
2021-12-10 20:48   ` Rob Herring
2021-12-03 11:33 ` Felix Fietkau [this message]
2021-12-03 11:33 ` [PATCH v6 04/14] ARM: Add basic support for Airoha EN7523 SoC Felix Fietkau
2021-12-03 11:33 ` [PATCH v6 05/14] ARM: multi_v7_defconfig: Add " Felix Fietkau
2021-12-03 11:33 ` [PATCH v6 06/14] dt-bindings: Add en7523-scu device tree binding documentation Felix Fietkau
2021-12-10 20:49   ` Rob Herring
2021-12-03 11:33 ` [PATCH v6 07/14] clk: en7523: Add clock driver for Airoha EN7523 SoC Felix Fietkau
2021-12-03 11:33 ` [PATCH v6 08/14] ARM: dts: add clock support for Airoha EN7523 Felix Fietkau
2021-12-03 11:33 ` [PATCH v6 09/14] dt-bindings: PCI: Add support for Airoha EN7532 Felix Fietkau
2021-12-03 11:33 ` [PATCH v6 10/14] PCI: mediatek: allow selecting controller driver for airoha arch Felix Fietkau
2021-12-06 20:11   ` Bjorn Helgaas
2021-12-03 11:33 ` [PATCH v6 11/14] ARM: dts: Add PCIe support for Airoha EN7523 Felix Fietkau
2021-12-03 11:33 ` [PATCH v6 12/14] dt-bindings: arm: airoha: Add binding for Airoha GPIO controller Felix Fietkau
2021-12-10 20:52   ` Rob Herring
2021-12-03 11:33 ` [PATCH v6 13/14] gpio: Add support for Airoha EN7523 " Felix Fietkau
2021-12-03 11:33 ` [PATCH v6 14/14] ARM: dts: add GPIO support for Airoha EN7523 Felix Fietkau

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