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authorSascha Hauer <s.hauer@pengutronix.de>2019-04-05 14:51:50 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2019-04-08 10:16:55 +0200
commit1dc748b3b202cadf9b799874d9af8d441ee556bc (patch)
tree58fd3c90a40e2d0128b0c7f36d63d7fc126bb20d /dts/Bindings/net/mediatek-bluetooth.txt
parent9688b49cd3bc0b61a019e8e1311236c9975a0777 (diff)
downloadbarebox-1dc748b3b202cadf9b799874d9af8d441ee556bc.tar.gz
dts: update to v5.1-rc1
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'dts/Bindings/net/mediatek-bluetooth.txt')
-rw-r--r--dts/Bindings/net/mediatek-bluetooth.txt64
1 files changed, 64 insertions, 0 deletions
diff --git a/dts/Bindings/net/mediatek-bluetooth.txt b/dts/Bindings/net/mediatek-bluetooth.txt
index 14ceb2a..41a7dcc 100644
--- a/dts/Bindings/net/mediatek-bluetooth.txt
+++ b/dts/Bindings/net/mediatek-bluetooth.txt
@@ -33,3 +33,67 @@ Example:
clock-names = "ref";
};
};
+
+MediaTek UART based Bluetooth Devices
+==================================
+
+This device is a serial attached device to UART device and thus it must be a
+child node of the serial node with UART.
+
+Please refer to the following documents for generic properties:
+
+ Documentation/devicetree/bindings/serial/slave-device.txt
+
+Required properties:
+
+- compatible: Must be
+ "mediatek,mt7663u-bluetooth": for MT7663U device
+ "mediatek,mt7668u-bluetooth": for MT7668U device
+- vcc-supply: Main voltage regulator
+- pinctrl-names: Should be "default", "runtime"
+- pinctrl-0: Should contain UART RXD low when the device is powered up to
+ enter proper bootstrap mode.
+- pinctrl-1: Should contain UART mode pin ctrl
+
+Optional properties:
+
+- reset-gpios: GPIO used to reset the device whose initial state keeps low,
+ if the GPIO is missing, then board-level design should be
+ guaranteed.
+- current-speed: Current baud rate of the device whose defaults to 921600
+
+Example:
+
+ uart1_pins_boot: uart1-default {
+ pins-dat {
+ pinmux = <MT7623_PIN_81_URXD1_FUNC_GPIO81>;
+ output-low;
+ };
+ };
+
+ uart1_pins_runtime: uart1-runtime {
+ pins-dat {
+ pinmux = <MT7623_PIN_81_URXD1_FUNC_URXD1>,
+ <MT7623_PIN_82_UTXD1_FUNC_UTXD1>;
+ };
+ };
+
+ uart1: serial@11003000 {
+ compatible = "mediatek,mt7623-uart",
+ "mediatek,mt6577-uart";
+ reg = <0 0x11003000 0 0x400>;
+ interrupts = <GIC_SPI 52 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&pericfg CLK_PERI_UART1_SEL>,
+ <&pericfg CLK_PERI_UART1>;
+ clock-names = "baud", "bus";
+
+ bluetooth {
+ compatible = "mediatek,mt7663u-bluetooth";
+ vcc-supply = <&reg_5v>;
+ reset-gpios = <&pio 24 GPIO_ACTIVE_LOW>;
+ pinctrl-names = "default", "runtime";
+ pinctrl-0 = <&uart1_pins_boot>;
+ pinctrl-1 = <&uart1_pins_runtime>;
+ current-speed = <921600>;
+ };
+ };