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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>
This commit is contained in:
Antony Pavlov 2016-03-17 06:34:25 +03:00 committed by Ralf Baechle
parent f40aec27ea
commit 98c1c5078d
2 changed files with 79 additions and 0 deletions
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1
arch/mips/boot/dts/qca/Makefile
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@ -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

78
arch/mips/boot/dts/qca/ar9331_dpt_module.dts Normal file
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@ -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>;
};
};