[PATCH v6 6/6] platform: generic: spacemit: k3: override cold_boot_allowed for hart 0 only

[Anup Patel]

On Wed, Oct 28, 2026 at 7:27 PM Troy Mitchell
<troy.mitchell at linux.spacemit.com> wrote:
>
> From: Valentin Haudiquet <valentin.haudiquet at canonical.com>
>
> Only hart 0 is powered at reset on K3; secondary harts are started later
> through HSM. Restrict cold-boot eligibility to hart 0 instead of using
> the generic DT-configured hart mask, matching K1.
>
> Signed-off-by: Valentin Haudiquet <valentin.haudiquet at canonical.com>
> Reviewed-by: E Shattow <e at freeshell.de>
> Signed-off-by: Troy Mitchell <troy.mitchell at linux.spacemit.com>

LGTM.

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

Applied this patch to the riscv/opensbi repo.

Thanks,
Anup

> ---
>  platform/generic/spacemit/k3.c | 6 ++++++
>  1 file changed, 6 insertions(+)
>
> diff --git a/platform/generic/spacemit/k3.c b/platform/generic/spacemit/k3.c
> index 967d09bf..7922ab11 100644
> --- a/platform/generic/spacemit/k3.c
> +++ b/platform/generic/spacemit/k3.c
> @@ -102,11 +102,17 @@ static int spacemit_k3_early_init(bool cold_boot)
>         return generic_early_init(cold_boot);
>  }
>
> +static bool spacemit_k3_cold_boot_allowed(u32 hartid)
> +{
> +       return !hartid;
> +}
> +
>  static int spacemit_k3_platform_init(const void *fdt, int nodeoff,
>                                      const struct fdt_match *match)
>  {
>         spacemit_k3_hart_init(current_hartid());
>         generic_platform_ops.early_init = spacemit_k3_early_init;
> +       generic_platform_ops.cold_boot_allowed = spacemit_k3_cold_boot_allowed;
>
>         return 0;
>  }
>
> --
> 2.55.0
>