linux-kernel - [PATCH v4 8/8] riscv: dts: microchip: add the sundance polarberry

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Message-Id: <20220504203051.1210355-9-mail@conchuod.ie>
Date:   Wed,  4 May 2022 21:30:52 +0100
From:   Conor Dooley <mail@...chuod.ie>
To:     krzk+dt@...nel.org, palmer@...belt.com, robh+dt@...nel.org
Cc:     conor.dooley@...rochip.com, Cyril.Jean@...rochip.com,
        daire.mcnamara@...rochip.com, paul.walmsley@...ive.com,
        aou@...s.berkeley.edu, palmer@...osinc.com, arnd@...db.de,
        heiko@...ech.de, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org
Subject: [PATCH v4 8/8] riscv: dts: microchip: add the sundance polarberry

From: Conor Dooley <conor.dooley@...rochip.com>

Add a minimal device tree for the PolarFire SoC based Sundance
PolarBerry.

Signed-off-by: Conor Dooley <conor.dooley@...rochip.com>
---
 arch/riscv/boot/dts/microchip/Makefile        |  1 +
 .../dts/microchip/mpfs-polarberry-fabric.dtsi | 16 +++
 .../boot/dts/microchip/mpfs-polarberry.dts    | 97 +++++++++++++++++++
 3 files changed, 114 insertions(+)
 create mode 100644 arch/riscv/boot/dts/microchip/mpfs-polarberry-fabric.dtsi
 create mode 100644 arch/riscv/boot/dts/microchip/mpfs-polarberry.dts

diff --git a/arch/riscv/boot/dts/microchip/Makefile b/arch/riscv/boot/dts/microchip/Makefile
index af3a5059b350..39aae7b04f1c 100644
--- a/arch/riscv/boot/dts/microchip/Makefile
+++ b/arch/riscv/boot/dts/microchip/Makefile
@@ -1,3 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_SOC_MICROCHIP_POLARFIRE) += mpfs-icicle-kit.dtb
+dtb-$(CONFIG_SOC_MICROCHIP_POLARFIRE) += mpfs-polarberry.dtb
 obj-$(CONFIG_BUILTIN_DTB) += $(addsuffix .o, $(dtb-y))
diff --git a/arch/riscv/boot/dts/microchip/mpfs-polarberry-fabric.dtsi b/arch/riscv/boot/dts/microchip/mpfs-polarberry-fabric.dtsi
new file mode 100644
index 000000000000..49380c428ec9
--- /dev/null
+++ b/arch/riscv/boot/dts/microchip/mpfs-polarberry-fabric.dtsi
@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/* Copyright (c) 2020-2022 Microchip Technology Inc */
+
+/ {
+	fabric_clk3: fabric-clk3 {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <62500000>;
+	};
+
+	fabric_clk1: fabric-clk1 {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <125000000>;
+	};
+};
diff --git a/arch/riscv/boot/dts/microchip/mpfs-polarberry.dts b/arch/riscv/boot/dts/microchip/mpfs-polarberry.dts
new file mode 100644
index 000000000000..1cad5b0d42e1
--- /dev/null
+++ b/arch/riscv/boot/dts/microchip/mpfs-polarberry.dts
@@ -0,0 +1,97 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/* Copyright (c) 2020-2022 Microchip Technology Inc */
+
+/dts-v1/;
+
+#include "mpfs.dtsi"
+#include "mpfs-polarberry-fabric.dtsi"
+
+/* Clock frequency (in Hz) of the rtcclk */
+#define MTIMER_FREQ	1000000
+
+/ {
+	model = "Sundance PolarBerry";
+	compatible = "sundance,polarberry", "microchip,mpfs";
+
+	aliases {
+		ethernet0 = &mac1;
+		serial0 = &mmuart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	cpus {
+		timebase-frequency = <MTIMER_FREQ>;
+	};
+
+	ddrc_cache_lo: memory@...00000 {
+		device_type = "memory";
+		reg = <0x0 0x80000000 0x0 0x2e000000>;
+	};
+
+	ddrc_cache_hi: memory@...0000000 {
+		device_type = "memory";
+		reg = <0x10 0x00000000 0x0 0xC0000000>;
+	};
+};
+
+/*
+ * phy0 is connected to mac0, but the port itself is on the (optional) carrier
+ * board.
+ */
+&mac0 {
+	status = "disabled";
+	phy-mode = "sgmii";
+	phy-handle = <&phy0>;
+};
+
+&mac1 {
+	status = "okay";
+	phy-mode = "sgmii";
+	phy-handle = <&phy1>;
+	phy1: ethernet-phy@5 {
+		reg = <5>;
+		ti,fifo-depth = <0x01>;
+	};
+	phy0: ethernet-phy@4 {
+		reg = <4>;
+		ti,fifo-depth = <0x01>;
+	};
+};
+
+&mbox {
+	status = "okay";
+};
+
+&mmc {
+	bus-width = <4>;
+	disable-wp;
+	cap-sd-highspeed;
+	cap-mmc-highspeed;
+	card-detect-delay = <200>;
+	mmc-ddr-1_8v;
+	mmc-hs200-1_8v;
+	sd-uhs-sdr12;
+	sd-uhs-sdr25;
+	sd-uhs-sdr50;
+	sd-uhs-sdr104;
+	status = "okay";
+};
+
+&mmuart0 {
+	status = "okay";
+};
+
+&refclk {
+	clock-frequency = <125000000>;
+};
+
+&rtc {
+	status = "okay";
+};
+
+&syscontroller {
+	status = "okay";
+};
-- 
2.36.0