linux-kernel - [PATCH 1/3] riscv: dts: thead: add BeagleV Ahead board device tree

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Message-Id: <20230722-upstream-beaglev-ahead-dts-v1-1-ccda511357f4@baylibre.com>
Date:   Sat, 22 Jul 2023 14:55:39 -0700
From:   Drew Fustini <dfustini@...libre.com>
To:     Jisheng Zhang <jszhang@...nel.org>, Guo Ren <guoren@...nel.org>,
        Fu Wei <wefu@...hat.com>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Conor Dooley <conor@...nel.org>
Cc:     linux-riscv@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Robert Nelson <robertcnelson@...gleboard.org>,
        Jason Kridner <jkridner@...gleboard.org>,
        Drew Fustini <dfustini@...libre.com>
Subject: [PATCH 1/3] riscv: dts: thead: add BeagleV Ahead board device tree

The BeagleV Ahead single board computer uses the T-Head TH1520 SoC.
Add a minimal device tree to support basic uart/gpio/dmac drivers so
that a user can boot to a basic shell.

Link: https://beagleboard.org/beaglev-ahead
Signed-off-by: Drew Fustini <dfustini@...libre.com>
---
 arch/riscv/boot/dts/thead/Makefile                 |  2 +-
 arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts | 61 ++++++++++++++++++++++
 2 files changed, 62 insertions(+), 1 deletion(-)

diff --git a/arch/riscv/boot/dts/thead/Makefile b/arch/riscv/boot/dts/thead/Makefile
index e311fc9a5939..b55a17127c2b 100644
--- a/arch/riscv/boot/dts/thead/Makefile
+++ b/arch/riscv/boot/dts/thead/Makefile
@@ -1,2 +1,2 @@
 # SPDX-License-Identifier: GPL-2.0
-dtb-$(CONFIG_ARCH_THEAD) += th1520-lichee-pi-4a.dtb
+dtb-$(CONFIG_ARCH_THEAD) += th1520-lichee-pi-4a.dtb th1520-beaglev-ahead.dtb
diff --git a/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts b/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts
new file mode 100644
index 000000000000..c315e5bd3d2d
--- /dev/null
+++ b/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2023 Jisheng Zhang <jszhang@...nel.org>
+ * Copyright (C) 2023 Drew Fustini <dfustini@...libre.com>
+ */
+
+/dts-v1/;
+
+#include "th1520.dtsi"
+
+/ {
+	model = "BeagleV Ahead";
+	compatible = "beagle,beaglev-ahead", "thead,th1520";
+
+	aliases {
+		gpio0 = &gpio0;
+		gpio1 = &gpio1;
+		gpio2 = &gpio2;
+		gpio3 = &gpio3;
+		serial0 = &uart0;
+		serial1 = &uart1;
+		serial2 = &uart2;
+		serial3 = &uart3;
+		serial4 = &uart4;
+		serial5 = &uart5;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0  0x00000000  0x1 0x00000000>;
+
+	};
+};
+
+&osc {
+	clock-frequency = <24000000>;
+};
+
+&osc_32k {
+	clock-frequency = <32768>;
+};
+
+&apb_clk {
+	clock-frequency = <62500000>;
+};
+
+&uart_sclk {
+	clock-frequency = <100000000>;
+};
+
+&dmac0 {
+	status = "okay";
+};
+
+&uart0 {
+	status = "okay";
+};

-- 
2.34.1