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Diffstat (limited to 'arch/arm/boot/dts/intel-ixp42x-arcom-vulcan.dts')
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diff --git a/arch/arm/boot/dts/intel-ixp42x-arcom-vulcan.dts b/arch/arm/boot/dts/intel-ixp42x-arcom-vulcan.dts
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index 000000000..92b987bc3
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+++ b/arch/arm/boot/dts/intel-ixp42x-arcom-vulcan.dts
@@ -0,0 +1,169 @@
+// SPDX-License-Identifier: ISC
+/*
+ * Device Tree file for the Arcom/Eurotech Vulcan board.
+ * This board is a single board computer in the PC/104 form factor based on
+ * IXP425, and was released around 2005. It previously had the name "Mercury".
+ */
+
+/dts-v1/;
+
+#include "intel-ixp42x.dtsi"
+#include <dt-bindings/input/input.h>
+
+/ {
+ model = "Arcom/Eurotech Vulcan";
+ compatible = "arcom,vulcan", "intel,ixp42x";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ memory@0 {
+ device_type = "memory";
+ reg = <0x00000000 0x4000000>;
+ };
+
+ chosen {
+ /* CHECKME: using a harddrive at /dev/sda1 as rootfs by default */
+ bootargs = "console=ttyS0,115200n8 root=/dev/sda1 rw rootfstype=ext4 rootwait";
+ stdout-path = "uart0:115200n8";
+ };
+
+ aliases {
+ serial0 = &uart0;
+ };
+
+ onewire {
+ compatible = "w1-gpio";
+ gpios = <&gpio0 14 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
+ };
+
+ soc {
+ bus@c4000000 {
+ flash@0,0 {
+ compatible = "intel,ixp4xx-flash", "cfi-flash";
+ bank-width = <2>;
+ /*
+ * 32 MB of Flash in 0x20000 byte blocks
+ * mapped in at CS0 and CS1.
+ *
+ * The documentation mentions the existence
+ * of a 16MB version, which we conveniently
+ * ignore. Shout if you own one!
+ */
+ reg = <0 0x00000000 0x2000000>;
+
+ /* Expansion bus settings */
+ intel,ixp4xx-eb-t3 = <3>;
+ intel,ixp4xx-eb-byte-access-on-halfword = <1>;
+ intel,ixp4xx-eb-write-enable = <1>;
+
+ partitions {
+ compatible = "redboot-fis";
+ fis-index-block = <0x1ff>;
+ };
+ };
+ sram@2,0 {
+ /* 256 KB SDRAM memory at CS2 */
+ compatible = "shared-dma-pool";
+ device_type = "memory";
+ reg = <2 0x00000000 0x40000>;
+ no-map;
+ /* Expansion bus settings */
+ intel,ixp4xx-eb-t3 = <1>;
+ intel,ixp4xx-eb-t4 = <2>;
+ intel,ixp4xx-eb-ahb-split-transfers = <1>;
+ intel,ixp4xx-eb-write-enable = <1>;
+ intel,ixp4xx-eb-byte-access = <1>;
+ };
+ serial@3,0 {
+ /*
+ * 8250-compatible Exar XR16L2551 2 x UART
+ *
+ * CHECKME: if special tweaks are needed, then fix the
+ * operating system to handle it.
+ */
+ compatible = "exar,xr16l2551", "ns8250";
+ reg = <3 0x00000000 0x10>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <4 IRQ_TYPE_LEVEL_LOW>;
+ clock-frequency = <1843200>;
+ /* Expansion bus settings */
+ intel,ixp4xx-eb-t3 = <3>;
+ intel,ixp4xx-eb-cycle-type = <1>; /* Motorola cycles */
+ intel,ixp4xx-eb-write-enable = <1>;
+ intel,ixp4xx-eb-byte-access = <1>;
+ };
+ gpio1: gpio@4,0 {
+ /*
+ * MMIO GPIO in one byte
+ */
+ compatible = "arcom,vulcan-gpio";
+ reg = <4 0x00000000 0x1>;
+ /* Expansion bus settings */
+ intel,ixp4xx-eb-write-enable = <1>;
+ intel,ixp4xx-eb-byte-access = <1>;
+ };
+ watchdog@5,0 {
+ compatible = "maxim,max6369";
+ reg = <5 0x00000000 0x1>;
+ /* Expansion bus settings */
+ intel,ixp4xx-eb-write-enable = <1>;
+ intel,ixp4xx-eb-byte-access = <1>;
+ };
+ };
+
+ pci@c0000000 {
+ status = "ok";
+
+ /*
+ * Taken from Vulcan PCI boardfile.
+ *
+ * We have 2 slots (IDSEL) 1 and 2 with one dedicated interrupt
+ * per slot. This interrupt is shared (OR:ed) by all four pins.
+ */
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0xf800 0 0 7>;
+ interrupt-map =
+ /* IDSEL 1 */
+ <0x0800 0 0 1 &gpio0 2 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 1 is irq 2 */
+ <0x0800 0 0 2 &gpio0 2 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 1 is irq 2 */
+ <0x0800 0 0 3 &gpio0 2 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 1 is irq 2 */
+ <0x0800 0 0 4 &gpio0 2 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 1 is irq 2 */
+ /* IDSEL 2 */
+ <0x1000 0 0 1 &gpio0 3 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 2 is irq 3 */
+ <0x1000 0 0 2 &gpio0 3 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 2 is irq 3 */
+ <0x1000 0 0 3 &gpio0 3 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 2 is irq 3 */
+ <0x1000 0 0 4 &gpio0 3 IRQ_TYPE_LEVEL_LOW>; /* INT D on slot 2 is irq 3 */
+ };
+
+ /* EthB */
+ ethernet@c8009000 {
+ status = "ok";
+ queue-rx = <&qmgr 3>;
+ queue-txready = <&qmgr 20>;
+ phy-mode = "rgmii";
+ phy-handle = <&phy0>;
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ phy0: ethernet-phy@0 {
+ reg = <0>;
+ };
+
+ phy1: ethernet-phy@1 {
+ reg = <1>;
+ };
+ };
+ };
+
+ /* EthC */
+ ethernet@c800a000 {
+ status = "ok";
+ queue-rx = <&qmgr 4>;
+ queue-txready = <&qmgr 21>;
+ phy-mode = "rgmii";
+ phy-handle = <&phy1>;
+ };
+ };
+};