[PATCH v2 3/4] riscv: dts: spacemit: add pinctrl support for K1 SoC
From: Yixun Lan <hidden>
Date: 2024-08-25 13:10:54
Also in:
linux-gpio, linux-riscv, lkml
Subsystem:
risc-v architecture, risc-v spacemit soc support, the rest · Maintainers:
Paul Walmsley, Palmer Dabbelt, Albert Ou, Yixun Lan, Linus Torvalds
Add pinctrl device tree data to SpacemiT's K1 SoC. Signed-off-by: Yixun Lan <redacted> --- Note, only minimal device tree data added in this series, which just try to demonstrate this pinctrl driver, but more dt data can be added later, in separate patches. --- arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi | 19 +++++++++++++++++++ arch/riscv/boot/dts/spacemit/k1.dtsi | 5 +++++ 2 files changed, 24 insertions(+)
diff --git a/arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi b/arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi
new file mode 100644
index 0000000000000..38ccaad1209f5
--- /dev/null
+++ b/arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi@@ -0,0 +1,19 @@ +// SPDX-License-Identifier: GPL-2.0 OR MIT +/* + * Copyright (c) 2024 Yixun Lan <dlan@gentoo.org> + */ + +#include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/pinctrl/spacemit,k1-pinctrl.h> + +&pinctrl { + uart0_2_cfg: uart0-2-cfg { + uart0-2-pins { + pinmux = <K1_PADCONF(GPIO_68, 2)>, + <K1_PADCONF(GPIO_69, 2)>; + + bias-pull-up; + drive-strength-microamp = <32>; + }; + }; +};
diff --git a/arch/riscv/boot/dts/spacemit/k1.dtsi b/arch/riscv/boot/dts/spacemit/k1.dtsi
index 0777bf9e01183..a2d5f7d4a942a 100644
--- a/arch/riscv/boot/dts/spacemit/k1.dtsi
+++ b/arch/riscv/boot/dts/spacemit/k1.dtsi@@ -416,6 +416,11 @@ uart9: serial@d4017800 { status = "disabled"; }; + pinctrl: pinctrl@d401e000 { + compatible = "spacemit,k1-pinctrl"; + reg = <0x0 0xd401e000 0x0 0x400>; + }; + plic: interrupt-controller@e0000000 { compatible = "spacemit,k1-plic", "sifive,plic-1.0.0"; reg = <0x0 0xe0000000 0x0 0x4000000>;
--
2.45.2