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authorSascha Hauer <s.hauer@pengutronix.de>2022-10-18 11:24:12 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2022-10-20 08:41:39 +0200
commit32e2176ba05083b66b7585d4ca81bcb5c5d72f84 (patch)
tree51b8628d96eb6415b11e2875dc6158f695af6573 /dts/Bindings/gpio/gpio-xilinx.txt
parent044294bdbee9e7ef8ffc5c3a9ef7841a09a84ff7 (diff)
downloadbarebox-32e2176ba05083b66b7585d4ca81bcb5c5d72f84.tar.gz
barebox-32e2176ba05083b66b7585d4ca81bcb5c5d72f84.tar.xz
dts: update to v6.1-rc1
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'dts/Bindings/gpio/gpio-xilinx.txt')
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diff --git a/dts/Bindings/gpio/gpio-xilinx.txt b/dts/Bindings/gpio/gpio-xilinx.txt
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-Xilinx plb/axi GPIO controller
-
-Dual channel GPIO controller with configurable number of pins
-(from 1 to 32 per channel). Every pin can be configured as
-input/output/tristate. Both channels share the same global IRQ but
-local interrupts can be enabled on channel basis.
-
-Required properties:
-- compatible : Should be "xlnx,xps-gpio-1.00.a"
-- reg : Address and length of the register set for the device
-- #gpio-cells : Should be two. The first cell is the pin number and the
- second cell is used to specify optional parameters (currently unused).
-- gpio-controller : Marks the device node as a GPIO controller.
-
-Optional properties:
-- clocks : Input clock specifier. Refer to common clock bindings.
-- interrupts : Interrupt mapping for GPIO IRQ.
-- xlnx,all-inputs : if n-th bit is setup, GPIO-n is input
-- xlnx,dout-default : if n-th bit is 1, GPIO-n default value is 1
-- xlnx,gpio-width : gpio width
-- xlnx,tri-default : if n-th bit is 1, GPIO-n is in tristate mode
-- xlnx,is-dual : if 1, controller also uses the second channel
-- xlnx,all-inputs-2 : as above but for the second channel
-- xlnx,dout-default-2 : as above but the second channel
-- xlnx,gpio2-width : as above but for the second channel
-- xlnx,tri-default-2 : as above but for the second channel
-
-
-Example:
-gpio: gpio@40000000 {
- #gpio-cells = <2>;
- compatible = "xlnx,xps-gpio-1.00.a";
- clocks = <&clkc25>;
- gpio-controller ;
- interrupt-parent = <&microblaze_0_intc>;
- interrupts = < 6 2 >;
- reg = < 0x40000000 0x10000 >;
- xlnx,all-inputs = <0x0>;
- xlnx,all-inputs-2 = <0x0>;
- xlnx,dout-default = <0x0>;
- xlnx,dout-default-2 = <0x0>;
- xlnx,gpio-width = <0x2>;
- xlnx,gpio2-width = <0x2>;
- xlnx,interrupt-present = <0x1>;
- xlnx,is-dual = <0x1>;
- xlnx,tri-default = <0xffffffff>;
- xlnx,tri-default-2 = <0xffffffff>;
-} ;