diff options
Diffstat (limited to 'arch/arm/dts/sunxi-bananapi-m2-plus-v1.2.dtsi')
| -rw-r--r-- | arch/arm/dts/sunxi-bananapi-m2-plus-v1.2.dtsi | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/arm/dts/sunxi-bananapi-m2-plus-v1.2.dtsi b/arch/arm/dts/sunxi-bananapi-m2-plus-v1.2.dtsi new file mode 100644 index 0000000000..22466afd38 --- /dev/null +++ b/arch/arm/dts/sunxi-bananapi-m2-plus-v1.2.dtsi @@ -0,0 +1,30 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) +/* + * Copyright (C) 2018 Chen-Yu Tsai <wens@csie.org> + */ + +#include "sunxi-bananapi-m2-plus.dtsi" + +/ { + /* + * Bananapi M2+ v1.2 uses a GPIO line to change the effective + * resistance on the CPU regulator's feedback pin. + */ + reg_vdd_cpux: vdd-cpux { + compatible = "regulator-gpio"; + regulator-name = "vdd-cpux"; + regulator-type = "voltage"; + regulator-boot-on; + regulator-always-on; + regulator-min-microvolt = <1100000>; + regulator-max-microvolt = <1300000>; + regulator-ramp-delay = <50>; /* 4ms */ + gpios = <&r_pio 0 1 GPIO_ACTIVE_HIGH>; /* PL1 */ + gpios-states = <0x1>; + states = <1100000 0>, <1300000 1>; + }; +}; + +&cpu0 { + cpu-supply = <®_vdd_cpux>; +}; |