[PATCH] ARM: dts: Add devicetree for Gateworks Avila GW2348
Linus Walleij
linus.walleij at linaro.org
Tue Jul 27 05:59:14 PDT 2021
This adds a device tree file for the Gateworks Avila GW2348 platform
supporting all the features of the in-kernel boardfiles.
There are more boards in the Avila family, but this is the one that
is supported out-of-the-box by the current boardfiles. Some extra
features have been folded in from the upstream OpenWrt sources,
such as proper ethernet setup for both ethernet ports.
More variants can be added based on this device tree. Some of those
have DSA switches, multiple LEDs, multiple serial ports and similar
and would need some more elaborate work.
Cc: Michael-Luke Jones <mlj28 at cam.ac.uk>
Cc: Deepak Saxena <dsaxena at plexity.net>
Cc: Tom Billman <kernel at giantshoulderinc.com>
Signed-off-by: Linus Walleij <linus.walleij at linaro.org>
---
arch/arm/boot/dts/Makefile | 1 +
.../dts/intel-ixp42x-gateworks-gw2348.dts | 172 ++++++++++++++++++
2 files changed, 173 insertions(+)
create mode 100644 arch/arm/boot/dts/intel-ixp42x-gateworks-gw2348.dts
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 5618fae949db..b07ebae2f56e 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -244,6 +244,7 @@ dtb-$(CONFIG_ARCH_IXP4XX) += \
intel-ixp42x-welltech-epbx100.dtb \
intel-ixp42x-iomega-nas100d.dtb \
intel-ixp42x-dlink-dsm-g600.dtb \
+ intel-ixp42x-gateworks-gw2348.dtb \
intel-ixp43x-gateworks-gw2358.dtb \
intel-ixp42x-omicron-devixp.dtb \
intel-ixp42x-omicron-miccpt.dtb \
diff --git a/arch/arm/boot/dts/intel-ixp42x-gateworks-gw2348.dts b/arch/arm/boot/dts/intel-ixp42x-gateworks-gw2348.dts
new file mode 100644
index 000000000000..272f8ca45f7c
--- /dev/null
+++ b/arch/arm/boot/dts/intel-ixp42x-gateworks-gw2348.dts
@@ -0,0 +1,172 @@
+// SPDX-License-Identifier: ISC
+/*
+ * Device Tree file for the Gateworks Avila GW2348 board.
+ * This machine is based on IXP425.
+ */
+
+/dts-v1/;
+
+#include "intel-ixp42x.dtsi"
+#include <dt-bindings/input/input.h>
+
+/ {
+ model = "Gateworks Avila GW2348";
+ compatible = "gateworks,gw2348", "intel,ixp42x";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ memory at 0 {
+ device_type = "memory";
+ reg = <0x00000000 0x4000000>;
+ };
+
+ chosen {
+ bootargs = "console=ttyS0,115200n8";
+ stdout-path = "uart0:115200n8";
+ };
+
+ aliases {
+ serial0 = &uart0;
+ };
+
+ leds {
+ compatible = "gpio-leds";
+ led-user {
+ label = "gw2348:green:user";
+ gpios = <&gpio0 3 GPIO_ACTIVE_LOW>;
+ default-state = "on";
+ linux,default-trigger = "heartbeat";
+ };
+ };
+
+ i2c {
+ compatible = "i2c-gpio";
+ sda-gpios = <&gpio0 7 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
+ scl-gpios = <&gpio0 6 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ hwmon at 28 {
+ compatible = "adi,ad7418";
+ reg = <0x28>;
+ };
+ rtc: ds1672 at 68 {
+ compatible = "dallas,ds1672";
+ reg = <0x68>;
+ };
+ eeprom at 51 {
+ compatible = "atmel,24c08";
+ reg = <0x51>;
+ pagesize = <16>;
+ size = <1024>;
+ read-only;
+ };
+ };
+
+ soc {
+ bus at c4000000 {
+ flash at 0,0 {
+ compatible = "intel,ixp4xx-flash", "cfi-flash";
+ bank-width = <2>;
+ /* Enable writes on the expansion bus */
+ intel,ixp4xx-eb-write-enable = <1>;
+ /* 16 MB of Flash mapped in at CS0 */
+ reg = <0 0x00000000 0x1000000>;
+
+ partitions {
+ compatible = "redboot-fis";
+ /* Eraseblock at 0x0fe0000 */
+ fis-index-block = <0x7f>;
+ };
+ };
+ ide at 1,0 {
+ compatible = "intel,ixp4xx-compact-flash";
+ /*
+ * Set up expansion bus config to a really slow timing.
+ * The CF driver will dynamically reconfigure these timings
+ * depending on selected PIO mode (0-4).
+ */
+ intel,ixp4xx-eb-t1 = <3>; // 3 cycles extra address phase
+ intel,ixp4xx-eb-t2 = <3>; // 3 cycles extra setup phase
+ intel,ixp4xx-eb-t3 = <15>; // 15 cycles extra strobe phase
+ intel,ixp4xx-eb-t4 = <3>; // 3 cycles extra hold phase
+ intel,ixp4xx-eb-t5 = <15>; // 15 cycles extra recovery phase
+ intel,ixp4xx-eb-cycle-type = <0>; // Intel cycle type
+ intel,ixp4xx-eb-byte-access-on-halfword = <1>;
+ intel,ixp4xx-eb-mux-address-and-data = <0>;
+ intel,ixp4xx-eb-ahb-split-transfers = <0>;
+ intel,ixp4xx-eb-write-enable = <1>;
+ intel,ixp4xx-eb-byte-access = <1>;
+ /* First register set is CMD second is CTL (notice it uses CS2) */
+ reg = <1 0x00000000 0x1000000>, <2 0x00000000 0x1000000>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <12 IRQ_TYPE_EDGE_RISING>;
+ };
+ /*
+ * FIXME: Latch LEDs or extra UARTs at CS4
+ */
+ };
+
+ pci at c0000000 {
+ status = "ok";
+
+ /*
+ * Taken from Avila PCI boardfile.
+ *
+ * We have up to 4 slots (IDSEL) with 4 swizzled IRQs.
+ */
+ interrupt-map =
+ /* IDSEL 1 */
+ <0x0800 0 0 1 &gpio0 11 3>, /* INT A on slot 1 is irq 11 */
+ <0x0800 0 0 2 &gpio0 10 3>, /* INT B on slot 1 is irq 10 */
+ <0x0800 0 0 3 &gpio0 9 3>, /* INT C on slot 1 is irq 9 */
+ <0x0800 0 0 4 &gpio0 8 3>, /* INT D on slot 1 is irq 8 */
+ /* IDSEL 2 */
+ <0x1000 0 0 1 &gpio0 10 3>, /* INT A on slot 2 is irq 10 */
+ <0x1000 0 0 2 &gpio0 9 3>, /* INT B on slot 2 is irq 9 */
+ <0x1000 0 0 3 &gpio0 8 3>, /* INT C on slot 2 is irq 8 */
+ <0x1000 0 0 4 &gpio0 11 3>, /* INT D on slot 2 is irq 11 */
+ /* IDSEL 3 */
+ <0x1800 0 0 1 &gpio0 9 3>, /* INT A on slot 3 is irq 9 */
+ <0x1800 0 0 2 &gpio0 8 3>, /* INT B on slot 3 is irq 8 */
+ <0x1800 0 0 3 &gpio0 11 3>, /* INT C on slot 3 is irq 11 */
+ <0x1800 0 0 4 &gpio0 10 3>, /* INT D on slot 3 is irq 10 */
+ /* IDSEL 4 */
+ <0x2000 0 0 1 &gpio0 8 3>, /* INT A on slot 4 is irq 8 */
+ <0x2000 0 0 2 &gpio0 11 3>, /* INT B on slot 4 is irq 11 */
+ <0x2000 0 0 3 &gpio0 10 3>, /* INT C on slot 4 is irq 10 */
+ <0x2000 0 0 4 &gpio0 9 3>; /* INT D on slot 4 is irq 9 */
+ };
+
+ /* EthB */
+ ethernet at 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 at 0 {
+ reg = <0>;
+ };
+
+ phy1: ethernet-phy at 1 {
+ reg = <1>;
+ };
+ };
+ };
+
+ /* EthC */
+ ethernet at c800a000 {
+ status = "ok";
+ queue-rx = <&qmgr 4>;
+ queue-txready = <&qmgr 21>;
+ phy-mode = "rgmii";
+ phy-handle = <&phy1>;
+ };
+ };
+};
--
2.31.1
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