diff options
Diffstat (limited to '')
| -rw-r--r-- | arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts | 26 | ||||
| -rw-r--r-- | arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts | 26 |
2 files changed, 52 insertions, 0 deletions
diff --git a/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts b/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts index 1a4154a6ff3b..0484fb390be4 100644 --- a/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts +++ b/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts @@ -61,6 +61,30 @@ status = "okay"; }; +&padctrl0_apsys { + uart0_pins: uart0-0 { + tx-pins { + pins = "UART0_TXD"; + function = "uart"; + bias-disable; + drive-strength = <3>; + input-disable; + input-schmitt-disable; + slew-rate = <0>; + }; + + rx-pins { + pins = "UART0_RXD"; + function = "uart"; + bias-pull-up; + drive-strength = <1>; + input-enable; + input-schmitt-enable; + slew-rate = <0>; + }; + }; +}; + &sdio0 { bus-width = <4>; max-frequency = <198000000>; @@ -68,6 +92,8 @@ }; &uart0 { + pinctrl-names = "default"; + pinctrl-0 = <&uart0_pins>; status = "okay"; }; diff --git a/arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts b/arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts index 58ad381fc1c3..f60b1879192d 100644 --- a/arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts +++ b/arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts @@ -30,7 +30,33 @@ }; }; +&padctrl0_apsys { + uart0_pins: uart0-0 { + tx-pins { + pins = "UART0_TXD"; + function = "uart"; + bias-disable; + drive-strength = <3>; + input-disable; + input-schmitt-disable; + slew-rate = <0>; + }; + + rx-pins { + pins = "UART0_RXD"; + function = "uart"; + bias-disable; + drive-strength = <1>; + input-enable; + input-schmitt-enable; + slew-rate = <0>; + }; + }; +}; + &uart0 { + pinctrl-names = "default"; + pinctrl-0 = <&uart0_pins>; status = "okay"; }; |