[PATCH 2/5] riscv: dts: canaan: Add basic device tree for K230 CanMV board

[Leo Liang]

On Wed, Jan 15, 2025 at 12:46:38AM +0800, Junhui Liu wrote:
> Add initial dts for K230-CanMV powered by Canaan Kendryte K230 SoC,
> which has two RISC-V C908 cores, a big core with vector 1.0 extension
> and a small core without vector extension.
> 
> This patch is basically comes from Linux Kernel [1] and it assumes
> u-boot is running on the big core. Additionally, bootctl and reboot nodes
> are added to support sysreset [2] and an clk_dummy node is added to
> satisfy dependencies for usb [3].
> 
> Currently, u-boot is booted by the vendor's u-boot-spl. To meet the
> requirements [4][5] of vendor's u-boot-spl for u-boot, a binman node with
> mkimage child node is added here, which will compress u-boot.bin with
> gzip and generate an image named "uboot" in the file u-boot-gz.img.
> 
> [1] https://git.kernel.org/pub/scm/linux/kernel/git/conor/linux.git/log/?h=k230-basic
> [2] https://github.com/kendryte/k230_sdk/blob/v1.8/src/big/rt-smart/kernel/bsp/maix3/board/interdrv/sysctl/sysctl_boot/sysctl_boot.c#L67
> [3] https://lore.kernel.org/linux-riscv/tencent_AD84B436C2F31108B66B4739D6E306C5E80A@qq.com/
> [4] https://github.com/kendryte/k230_sdk/blob/v1.8/src/little/uboot/board/canaan/common/k230_img.c#L306
> [5] https://github.com/kendryte/k230_sdk/blob/v1.8/src/little/uboot/board/canaan/common/k230_img.c#L125
> 
> Signed-off-by: Junhui Liu <junhui.liu at pigmoral.tech>
> ---
>  arch/riscv/dts/Makefile         |   1 +
>  arch/riscv/dts/k230-canmv.dts   |  31 +++++++
>  arch/riscv/dts/k230-u-boot.dtsi |  25 ++++++
>  arch/riscv/dts/k230.dtsi        | 175 ++++++++++++++++++++++++++++++++++++++++
>  4 files changed, 232 insertions(+)

Reviewed-by: Leo Yu-Chi Liang <ycliang at andestech.com>