summaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/serial
diff options
context:
space:
mode:
authorAndrei Pistirica <andrei.pistirica@microchip.com>2016-01-14 02:15:42 +0100
committerRalf Baechle <ralf@linux-mips.org>2016-05-13 14:01:56 +0200
commit81dfdd39c76dc65f3a0fd5e6a231c3cbca9c49bc (patch)
tree979aca2adb798a37168801b4c7169699f7051eb6 /Documentation/devicetree/bindings/serial
parentMIPS: cpu: Convert MIPS_CPU_* defs to (1ull << x) (diff)
downloadlinux-81dfdd39c76dc65f3a0fd5e6a231c3cbca9c49bc.tar.xz
linux-81dfdd39c76dc65f3a0fd5e6a231c3cbca9c49bc.zip
dt/bindings: Add bindings for PIC32 UART driver
Document the devicetree bindings for the UART peripheral found on Microchip PIC32 class devices. Signed-off-by: Andrei Pistirica <andrei.pistirica@microchip.com> Signed-off-by: Joshua Henderson <joshua.henderson@microchip.com> Acked-by: Rob Herring <robh@kernel.org> Cc: Rob Herring <robh+dt@kernel.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> Cc: Kumar Gala <galak@codeaurora.org> Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: devicetree@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/12100/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'Documentation/devicetree/bindings/serial')
-rw-r--r--Documentation/devicetree/bindings/serial/microchip,pic32-uart.txt29
1 files changed, 29 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/serial/microchip,pic32-uart.txt b/Documentation/devicetree/bindings/serial/microchip,pic32-uart.txt
new file mode 100644
index 000000000000..65b38bf60ae0
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/microchip,pic32-uart.txt
@@ -0,0 +1,29 @@
+* Microchip Universal Asynchronous Receiver Transmitter (UART)
+
+Required properties:
+- compatible: Should be "microchip,pic32mzda-uart"
+- reg: Should contain registers location and length
+- interrupts: Should contain interrupt
+- clocks: Phandle to the clock.
+ See: Documentation/devicetree/bindings/clock/clock-bindings.txt
+- pinctrl-names: A pinctrl state names "default" must be defined.
+- pinctrl-0: Phandle referencing pin configuration of the UART peripheral.
+ See: Documentation/devicetree/bindings/pinctrl/pinctrl-binding.txt
+
+Optional properties:
+- cts-gpios: CTS pin for UART
+
+Example:
+ uart1: serial@1f822000 {
+ compatible = "microchip,pic32mzda-uart";
+ reg = <0x1f822000 0x50>;
+ interrupts = <112 IRQ_TYPE_LEVEL_HIGH>,
+ <113 IRQ_TYPE_LEVEL_HIGH>,
+ <114 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&PBCLK2>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart1
+ &pinctrl_uart1_cts
+ &pinctrl_uart1_rts>;
+ cts-gpios = <&gpio1 15 0>;
+ };