[RFC v5 06/15] MIPS: ath79: add initial support for TP-LINK MR3020

Antony Pavlov
2016-02-09T08:13:52Z

The following features are supported:

* UART;
* SPI-flash;
* GPIO keys and LEDs.

Links:

* http://www.tp-link.com/en/products/details/?model=TL-MR3020
* http://wiki.openwrt.org/toh/tp-link/tl-mr3020
* https://wikidevi.com/wiki/TP-LINK_TL-MR3020

Signed-off-by: Antony Pavlov <antonynpavlov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: Gabor Juhos <juhosg-p3rKhJxN3npAfugRpC6u6w@public.gmane.org>
Cc: Alban Bedel <albeu-GANU6spQydw@public.gmane.org>
Cc: linux-mips-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org
Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
---
arch/mips/boot/dts/qca/Makefile | 1 +
arch/mips/boot/dts/qca/tl_mr3020.dts | 99 ++++++++++++++++++++++++++++++++++++
2 files changed, 100 insertions(+)

diff --git a/arch/mips/boot/dts/qca/Makefile b/arch/mips/boot/dts/qca/Makefile
index 14bd225..504c4b1 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) += tl_mr3020.dtb

# Force kbuild to make empty built-in.o if necessary
obj- += dummy.o
diff --git a/arch/mips/boot/dts/qca/tl_mr3020.dts b/arch/mips/boot/dts/qca/tl_mr3020.dts
new file mode 100644
index 0000000..2a1b296
--- /dev/null
+++ b/arch/mips/boot/dts/qca/tl_mr3020.dts
@@ -0,0 +1,99 @@
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+#include "ar9331.dtsi"
+
+/ {
+ model = "TP-Link TL-MR3020";
+ compatible = "tplink,tl-mr3020";
+
+ aliases {
+ serial0 = &uart;
+ };
+
+ memory@0 {
+ device_type = "memory";
+ reg = <0x0 0x2000000>;
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ wlan {
+ label = "tp-link:green:wlan";
+ gpios = <&gpio 0 GPIO_ACTIVE_HIGH>;
+ default-state = "off";
+ };
+
+ lan {
+ label = "tp-link:green:lan";
+ gpios = <&gpio 17 GPIO_ACTIVE_LOW>;
+ default-state = "off";
+ };
+
+ wps {
+ label = "tp-link:green:wps";
+ gpios = <&gpio 26 GPIO_ACTIVE_LOW>;
+ default-state = "off";
+ };
+
+ led3g {
+ label = "tp-link:green:3g";
+ 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 = "wps";
+ linux,code = <KEY_WPS_BUTTON>;
+ gpios = <&gpio 11 GPIO_ACTIVE_HIGH>;
+ };
+
+ button@1 {
+ label = "sw1";
+ linux,code = <BTN_0>;
+ gpios = <&gpio 18 GPIO_ACTIVE_HIGH>;
+ };
+
+ button@2 {
+ label = "sw2";
+ linux,code = <BTN_1>;
+ gpios = <&gpio 20 GPIO_ACTIVE_HIGH>;
+ };
+ };
+};
+
+&ref {
+ clock-frequency = <25000000>;
+};
+
+&uart {
+ status = "okay";
+};
+
+&gpio {
+ status = "okay";
+};
+
+&spi {
+ num-chipselects = <1>;
+ status = "okay";
+
+ /* Spansion S25FL032PIF SPI flash */
+ spiflash: s25sl032p@0 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "spansion,s25sl032p", "jedec,spi-nor";
+ spi-max-frequency = <104000000>;
+ reg = <0>;
+ };
+};
--
2.7.0