[PATCH 1/1] lib: utils/timer: mtimer: Add SiFive CLINT v2 support

[Anup Patel]

On Wed, Sep 17, 2025 at 4:22 PM Yong-Xuan Wang <yongxuan.wang at sifive.com> wrote:
>
> The SiFive CLINT v2 is the HRT that supports the Zicntr extension. It
> is incompatible with the SiFive CLINT v0 due to differences in their
> control methods.
>
> Signed-off-by: Vincent Chen <vincent.chen at sifive.com>
> Signed-off-by: Yong-Xuan Wang <yongxuan.wang at sifive.com>
> Co-developed-by: Yong-Xuan Wang <yongxuan.wang at sifive.com>

LGTM.

Reviewed-by: Anup Patel <anup at brainfault.org>

Applied this patch to the riscv/opensbi repo.

Thanks,
Anup

> ---
>  lib/utils/timer/fdt_timer_mtimer.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/lib/utils/timer/fdt_timer_mtimer.c b/lib/utils/timer/fdt_timer_mtimer.c
> index 224534d89c5d..e1fd051964bf 100644
> --- a/lib/utils/timer/fdt_timer_mtimer.c
> +++ b/lib/utils/timer/fdt_timer_mtimer.c
> @@ -155,6 +155,7 @@ static const struct timer_mtimer_quirks thead_aclint_quirks = {
>  static const struct fdt_match timer_mtimer_match[] = {
>         { .compatible = "riscv,clint0", .data = &sifive_clint_quirks },
>         { .compatible = "sifive,clint0", .data = &sifive_clint_quirks },
> +       { .compatible = "sifive,clint2", .data = &sifive_clint_quirks },
>         { .compatible = "thead,c900-clint", .data = &thead_clint_quirks },
>         { .compatible = "thead,c900-aclint-mtimer",
>           .data = &thead_aclint_quirks },
> --
> 2.43.0
>
>
> --
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