[PATCH v4 6/6] platform: generic: spacemit: k3: override cold_boot_allowed for hart 0 only

Troy Mitchell troy.mitchell at linux.spacemit.com
Thu Sep 10 07:00:07 PDT 2026


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>
Signed-off-by: Troy Mitchell <troy.mitchell at linux.spacemit.com>
---
 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




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