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realtek: add mux pinctrl for rtl931x

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Add a pinctrl-single node to manage the sys-led mux and JTAG mux.
This allows using the associated pins as GPIOs:
  - sys-led: GPIO0
  - JTAG: GPIO6, GPIO7, others unknown (TDO, TDI, TMS, TCK /TRST)

Suggested-by: Birger Koblitz <mail@birger-koblitz.de>
Signed-off-by: Sander Vanheule <sander@svanheule.net>
This commit is contained in:
Sander Vanheule 2022-06-07 08:42:05 +02:00
parent 3edb5e841c
commit b03109c094
1 changed files with 19 additions and 0 deletions
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19
target/linux/realtek/dts-5.10/rtl931x.dtsi
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@ -155,6 +155,25 @@
};
};
pinmux: pinmux@1b001358 {
compatible = "pinctrl-single";
reg = <0x1b001358 0x4>;
pinctrl-single,bit-per-mux;
pinctrl-single,register-width = <32>;
pinctrl-single,function-mask = <0x1>;
#pinctrl-cells = <2>;
/* Enable GPIO6 and GPIO7, possibly unknown others */
pinmux_disable_jtag: disable_jtag {
pinctrl-single,bits = <0x0 0x0 0x8000>;
};
/* Controls GPIO0 */
pinmux_disable_sys_led: disable_sys_led {
pinctrl-single,bits = <0x0 0x0 0x100>;
};
};
ethernet0: ethernet@1b00a300 {
status = "okay";