[PATCH] ARM: dts: ixp4xx: Add a devicetree for Freecom FSG-3

* [PATCH] ARM: dts: ixp4xx: Add a devicetree for Freecom FSG-3
@ 2021-07-29 14:41 Linus Walleij
  2021-07-29 15:43 ` Andrew Lunn
  2021-08-01 13:22 ` Marc Zyngier
  0 siblings, 2 replies; 8+ messages in thread
From: Linus Walleij @ 2021-07-29 14:41 UTC (permalink / raw)
  To: linux-arm-kernel, Imre Kaloz, Krzysztof Halasa
  Cc: Linus Walleij, Rod Whitby, Marc Zyngier

This adds a devicetree for the Freecom FSG-3, a combined router
and NAS.

Cc: Rod Whitby <rod@whitby.id.au>
Cc: Marc Zyngier <maz@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/Makefile                    |   1 +
 .../boot/dts/intel-ixp42x-freecom-fsg-3.dts   | 158 ++++++++++++++++++
 2 files changed, 159 insertions(+)
 create mode 100644 arch/arm/boot/dts/intel-ixp42x-freecom-fsg-3.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index c01a8f55892f..9bad559ba9a2 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -242,6 +242,7 @@ dtb-$(CONFIG_ARCH_INTEGRATOR) += \
 dtb-$(CONFIG_ARCH_IXP4XX) += \
 	intel-ixp42x-linksys-nslu2.dtb \
 	intel-ixp42x-linksys-wrv54g.dtb \
+	intel-ixp42x-freecom-fsg-3.dtb \
 	intel-ixp42x-welltech-epbx100.dtb \
 	intel-ixp42x-ixdp425.dtb \
 	intel-ixp43x-kixrp435.dtb \
diff --git a/arch/arm/boot/dts/intel-ixp42x-freecom-fsg-3.dts b/arch/arm/boot/dts/intel-ixp42x-freecom-fsg-3.dts
new file mode 100644
index 000000000000..77e78c6dc2cd
--- /dev/null
+++ b/arch/arm/boot/dts/intel-ixp42x-freecom-fsg-3.dts
@@ -0,0 +1,158 @@
+// SPDX-License-Identifier: ISC
+/*
+ * Device Tree file for the Freecom FSG-3 router.
+ * This machine is based on IXP425.
+ * This device tree is inspired by the board file by Rod Whitby.
+ */
+
+/dts-v1/;
+
+#include "intel-ixp42x.dtsi"
+#include <dt-bindings/input/input.h>
+
+/ {
+	model = "Freecom FSG-3";
+	compatible = "freecom,fsg-3", "intel,ixp42x";
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	memory@0 {
+		/* 64 MB memory */
+		device_type = "memory";
+		reg = <0x00000000 0x4000000>;
+	};
+
+	chosen {
+		/* Boot from the first partition on the hard drive */
+		bootargs = "console=ttyS0,115200n8 root=/dev/sda1 rw rootfstype=ext4 rootwait";
+		stdout-path = "uart0:115200n8";
+	};
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	gpio_keys {
+		compatible = "gpio-keys";
+
+		button-sync {
+			wakeup-source;
+			/* Closest approximation of what the key should do */
+			linux,code = <KEY_CONNECT>;
+			label = "sync";
+			gpios = <&gpio0 4 GPIO_ACTIVE_HIGH>;
+		};
+		button-reset {
+			wakeup-source;
+			linux,code = <KEY_ESC>;
+			label = "reset";
+			gpios = <&gpio0 9 GPIO_ACTIVE_LOW>;
+		};
+		button-usb {
+			wakeup-source;
+			/* Unplug USB, closest approximation of what the key should do */
+			linux,code = <KEY_EJECTCD>;
+			label = "usb";
+			gpios = <&gpio0 10 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	i2c {
+		compatible = "i2c-gpio";
+		sda-gpios = <&gpio0 12 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
+		scl-gpios = <&gpio0 13 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		hwmon@28 {
+			/*
+			 * Temperature sensor and fan control chip.
+			 *
+			 * TODO: create a proper device tree binding for
+			 * the sensor and temperature zone and create a
+			 * zone with fan control.
+			 */
+			compatible = "winbond,w83781d";
+			reg = <0x28>;
+		};
+		rtc@6f {
+			compatible = "isil,isl1208";
+			reg = <0x6f>;
+		};
+	};
+
+	soc {
+		bus@c4000000 {
+			flash@0,0 {
+				compatible = "intel,ixp4xx-flash", "cfi-flash";
+				bank-width = <2>;
+				/* Enable writes on the expansion bus */
+				intel,ixp4xx-eb-write-enable = <1>;
+				/* 4 MB of Flash mapped in at CS0 */
+				reg = <0 0x00000000 0x400000>;
+
+				partitions {
+					compatible = "redboot-fis";
+					/* Eraseblock at 0x3e0000 */
+					fis-index-block = <0x1f>;
+				};
+			};
+		};
+
+		pci@c0000000 {
+			status = "ok";
+
+			/*
+			 * Written based on the FSG-3 PCI boardfile.
+			 * We have slots 12, 13 & 14 (IDSEL) with one IRQ each.
+			 */
+			interrupt-map =
+			/* IDSEL 12 */
+			<0x6000 0 0 1 &gpio0 5 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 12 is irq 5 */
+			<0x6000 0 0 2 &gpio0 5 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 12 is irq 5 */
+			<0x6000 0 0 3 &gpio0 5 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 12 is irq 5 */
+			<0x6000 0 0 4 &gpio0 5 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 12 is irq 5 */
+			/* IDSEL 13 */
+			<0x6800 0 0 1 &gpio0 7 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 13 is irq 7 */
+			<0x6800 0 0 2 &gpio0 7 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 13 is irq 7 */
+			<0x6800 0 0 3 &gpio0 7 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 13 is irq 7 */
+			<0x6800 0 0 4 &gpio0 7 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 13 is irq 7 */
+			/* IDSEL 14 */
+			<0x7000 0 0 1 &gpio0 6 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 14 is irq 6 */
+			<0x7000 0 0 2 &gpio0 6 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 14 is irq 6 */
+			<0x7000 0 0 3 &gpio0 6 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 14 is irq 6 */
+			<0x7000 0 0 4 &gpio0 6 IRQ_TYPE_LEVEL_LOW>; /* INT D on slot 14 is irq 6 */
+		};
+
+		/* EthB */
+		ethernet@c8009000 {
+			status = "ok";
+			queue-rx = <&qmgr 3>;
+			queue-txready = <&qmgr 20>;
+			phy-mode = "rgmii";
+			phy-handle = <&phy5>;
+
+			mdio {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				phy4: ethernet-phy@4 {
+					reg = <4>;
+				};
+
+				phy5: ethernet-phy@5 {
+					reg = <5>;
+				};
+			};
+		};
+
+		/* EthC */
+		ethernet@c800a000 {
+			status = "ok";
+			queue-rx = <&qmgr 4>;
+			queue-txready = <&qmgr 21>;
+			phy-mode = "rgmii";
+			phy-handle = <&phy4>;
+		};
+	};
+};
-- 
2.31.1


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