The BeagleV Ahead single board computer uses the T-Head TH1520 SoC. Add a minimal device tree to support basic uart/gpio/dmac drivers so that a user can boot to a basic shell. Link: https://beagleboard.org/beaglev-ahead Reviewed-by: Guo Ren <guoren@xxxxxxxxxx> Reviewed-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx> Signed-off-by: Drew Fustini <dfustini@xxxxxxxxxxxx> --- arch/riscv/boot/dts/thead/Makefile | 2 +- arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts | 61 ++++++++++++++++++++++ 2 files changed, 62 insertions(+), 1 deletion(-) diff --git a/arch/riscv/boot/dts/thead/Makefile b/arch/riscv/boot/dts/thead/Makefile index e311fc9a5939..b55a17127c2b 100644 --- a/arch/riscv/boot/dts/thead/Makefile +++ b/arch/riscv/boot/dts/thead/Makefile @@ -1,2 +1,2 @@ # SPDX-License-Identifier: GPL-2.0 -dtb-$(CONFIG_ARCH_THEAD) += th1520-lichee-pi-4a.dtb +dtb-$(CONFIG_ARCH_THEAD) += th1520-lichee-pi-4a.dtb th1520-beaglev-ahead.dtb diff --git a/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts b/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts new file mode 100644 index 000000000000..70e8042c8304 --- /dev/null +++ b/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts @@ -0,0 +1,61 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MIT) +/* + * Copyright (C) 2023 Jisheng Zhang <jszhang@xxxxxxxxxx> + * Copyright (C) 2023 Drew Fustini <dfustini@xxxxxxxxxxxx> + */ + +/dts-v1/; + +#include "th1520.dtsi" + +/ { + model = "BeagleV Ahead"; + compatible = "beagle,beaglev-ahead", "thead,th1520"; + + aliases { + gpio0 = &gpio0; + gpio1 = &gpio1; + gpio2 = &gpio2; + gpio3 = &gpio3; + serial0 = &uart0; + serial1 = &uart1; + serial2 = &uart2; + serial3 = &uart3; + serial4 = &uart4; + serial5 = &uart5; + }; + + chosen { + stdout-path = "serial0:115200n8"; + }; + + memory@0 { + device_type = "memory"; + reg = <0x0 0x00000000 0x1 0x00000000>; + + }; +}; + +&osc { + clock-frequency = <24000000>; +}; + +&osc_32k { + clock-frequency = <32768>; +}; + +&apb_clk { + clock-frequency = <62500000>; +}; + +&uart_sclk { + clock-frequency = <100000000>; +}; + +&dmac0 { + status = "okay"; +}; + +&uart0 { + status = "okay"; +}; -- 2.34.1
