MIPS: ath79: add initial support for DPT-Module
The following features are supported:
* UART;
* SPI-flash;
* USB host;
* GPIO key and LED.
Links:
* https://dptechnics.com/shop/index.php?route=product/product&path=59&product_id=50
* https://dptechnics.com/shop/index.php?route=product/product&path=59&product_id=63
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Cc: Daan Pape <daan@dptechnics.com>
Cc: linux-mips@linux-mips.org
Cc: devicetree@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/12886/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/boot/dts/qca/Makefile b/arch/mips/boot/dts/qca/Makefile
index dc0b5a4..63a9ddf 100644
--- a/arch/mips/boot/dts/qca/Makefile
+++ b/arch/mips/boot/dts/qca/Makefile
@@ -1,5 +1,6 @@
# All DTBs
dtb-$(CONFIG_ATH79) += ar9132_tl_wr1043nd_v1.dtb
+dtb-$(CONFIG_ATH79) += ar9331_dpt_module.dtb
dtb-$(CONFIG_ATH79) += ar9331_dragino_ms14.dtb
dtb-$(CONFIG_ATH79) += ar9331_omega.dtb
dtb-$(CONFIG_ATH79) += ar9331_tl_mr3020.dtb
diff --git a/arch/mips/boot/dts/qca/ar9331_dpt_module.dts b/arch/mips/boot/dts/qca/ar9331_dpt_module.dts
new file mode 100644
index 0000000..98e7450
--- /dev/null
+++ b/arch/mips/boot/dts/qca/ar9331_dpt_module.dts
@@ -0,0 +1,78 @@
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+#include "ar9331.dtsi"
+
+/ {
+ model = "DPTechnics DPT-Module";
+ compatible = "dptechnics,dpt-module";
+
+ aliases {
+ serial0 = &uart;
+ };
+
+ memory@0 {
+ device_type = "memory";
+ reg = <0x0 0x4000000>;
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ system {
+ label = "dpt-module:green:system";
+ gpios = <&gpio 27 GPIO_ACTIVE_LOW>;
+ default-state = "off";
+ };
+ };
+
+ gpio-keys-polled {
+ compatible = "gpio-keys-polled";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ poll-interval = <100>;
+
+ button@0 {
+ label = "reset";
+ linux,code = <KEY_RESTART>;
+ gpios = <&gpio 11 GPIO_ACTIVE_LOW>;
+ };
+ };
+};
+
+&ref {
+ clock-frequency = <25000000>;
+};
+
+&uart {
+ status = "okay";
+};
+
+&gpio {
+ status = "okay";
+};
+
+&usb {
+ dr_mode = "host";
+ status = "okay";
+};
+
+&usb_phy {
+ status = "okay";
+};
+
+&spi {
+ num-chipselects = <1>;
+ status = "okay";
+
+ /* Winbond 25Q128FVSG SPI flash */
+ spiflash: w25q128@0 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "winbond,w25q128", "jedec,spi-nor";
+ spi-max-frequency = <104000000>;
+ reg = <0>;
+ };
+};