+CC Icenowy
On Sun, Nov 27, 2022 at 09:24:45PM +0800, Jisheng Zhang wrote:
> Add a baisc dtsi for the bouffalolab bl808 SoC.
>
> Signed-off-by: Jisheng Zhang <jszhang@xxxxxxxxxx>
> ---
> arch/riscv/boot/dts/bouffalolab/bl808.dtsi | 74 ++++++++++++++++++++++
> 1 file changed, 74 insertions(+)
> create mode 100644 arch/riscv/boot/dts/bouffalolab/bl808.dtsi
>
> diff --git a/arch/riscv/boot/dts/bouffalolab/bl808.dtsi b/arch/riscv/boot/dts/bouffalolab/bl808.dtsi
> new file mode 100644
> index 000000000000..f4b170ccc32e
> --- /dev/null
> +++ b/arch/riscv/boot/dts/bouffalolab/bl808.dtsi
> @@ -0,0 +1,74 @@
> +// SPDX-License-Identifier: (GPL-2.0+ or MIT)
> +/*
> + * Copyright (C) 2022 Jisheng Zhang <jszhang@xxxxxxxxxx>
> + */
> +
> +#include <dt-bindings/interrupt-controller/irq.h>
> +
> +/ {
> + compatible = "bouffalolab,bl808";
> + #address-cells = <1>;
> + #size-cells = <1>;
> +
> + cpus {
> + timebase-frequency = <1000000>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + cpu0: cpu@0 {
> + compatible = "thead,c906", "riscv";
> + device_type = "cpu";
> + reg = <0>;
> + d-cache-block-size = <64>;
> + d-cache-sets = <256>;
> + d-cache-size = <32768>;
> + i-cache-block-size = <64>;
> + i-cache-sets = <128>;
> + i-cache-size = <32768>;
> + mmu-type = "riscv,sv39";
> + riscv,isa = "rv64imafdc";
> +
> + cpu0_intc: interrupt-controller {
> + compatible = "riscv,cpu-intc";
> + interrupt-controller;
> + #address-cells = <0>;
> + #interrupt-cells = <1>;
> + };
> + };
> + };
> +
> + xtal: xtal-clk {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + /* This value must be overridden by the board */
> + clock-frequency = <0>;
> + };
> +
> + soc {
> + compatible = "simple-bus";
> + ranges;
> + interrupt-parent = <&plic>;
> + dma-noncoherent;
> + #address-cells = <1>;
> + #size-cells = <1>;
> +
> + uart0: serial@30002000 {
> + compatible = "bouffalolab,bl808-uart";
> + reg = <0x30002000 0x1000>;
> + interrupts = <20 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&xtal>;
> + status = "disabled";
> + };
> +
> + plic: interrupt-controller@e0000000 {
> + compatible = "thead,c900-plic";
Hmm, @Icenowy - should this use your new open-c906-plic compatible from
20221121041757.418645-4-uwu@xxxxxxxxxx ?
As is, dtbs_check gives a:
bl808-sipeed-m1s-dock.dtb: interrupt-controller@e0000000: compatible: 'oneOf' conditional failed, one must be fixed:
['thead,c900-plic'] is too short
> + reg = <0xe0000000 0x4000000>;
> + interrupts-extended = <&cpu0_intc 0xffffffff>,
> + <&cpu0_intc 9>;
> + interrupt-controller;
> + #address-cells = <0>;
> + #interrupt-cells = <2>;
> + riscv,ndev = <64>;
> + };
> + };
> +};
> --
> 2.38.1
>
>
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