[PATCH v6 2/6] platform: generic: spacemit: k1: rename cache flush operation

[Anup Patel]

On Wed, Oct 28, 2026 at 6:26 PM Troy Mitchell
<troy.mitchell at linux.spacemit.com> wrote:
>
> From: Xianbin Zhu <xianbin.zhu at linux.spacemit.com>
>
> MRAOP_ICACHE_INVALID is used to flush the local D-cache before a hart
> stops, so the name incorrectly describes I-cache invalidation. Rename
> it to MRAOP_CACHE_FLUSH without changing its encoded value.
>
> Signed-off-by: Xianbin Zhu <xianbin.zhu at linux.spacemit.com>
> Reviewed-by: E Shattow <e at freeshell.de>
> Co-developed-by: Troy Mitchell <troy.mitchell at linux.spacemit.com>
> 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

> ---
>  lib/utils/hsm/fdt_hsm_spacemit.c       | 2 +-
>  platform/generic/include/spacemit/k1.h | 3 +--
>  2 files changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/lib/utils/hsm/fdt_hsm_spacemit.c b/lib/utils/hsm/fdt_hsm_spacemit.c
> index 868e49bf..99c52335 100644
> --- a/lib/utils/hsm/fdt_hsm_spacemit.c
> +++ b/lib/utils/hsm/fdt_hsm_spacemit.c
> @@ -92,7 +92,7 @@ static int spacemit_hart_stop(void)
>         asm volatile ("fence iorw, iorw");
>
>         /* flush local dcache */
> -       csr_write(CSR_MRAOP, MRAOP_ICACHE_INVALID);
> +       csr_write(CSR_MRAOP, MRAOP_CACHE_FLUSH);
>         asm volatile ("fence iorw, iorw");
>
>         /* disable dcache */
> diff --git a/platform/generic/include/spacemit/k1.h b/platform/generic/include/spacemit/k1.h
> index 7095bc08..8d4f5344 100644
> --- a/platform/generic/include/spacemit/k1.h
> +++ b/platform/generic/include/spacemit/k1.h
> @@ -20,8 +20,7 @@
>  /* ECC enable */
>  #define MSETUP_ECCE                            BIT(16)
>
> -/* icache invalidation */
> -#define MRAOP_ICACHE_INVALID                   GENMASK(1, 0)
> +#define MRAOP_CACHE_FLUSH                      GENMASK(1, 0)
>
>  #define PMU_AP_BASE                            0xd4282800
>
>
> --
> 2.55.0
>