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From: Rahul Pathak <rpathak@ventanamicro.com>
To: opensbi@lists.infradead.org
Cc: rpathak@ventanamicro.com, rahul@summations.net,
	Anup Patel <apatel@ventanamicro.com>
Subject: [PATCH] lib: utils/reset: Hang the hart after RPMI system reset message
Date: Wed,  3 Sep 2025 20:13:23 +0530	[thread overview]
Message-ID: <20250903144323.251270-1-rpathak@ventanamicro.com> (raw)

RPMI system reset is a posted message which
does not wait for acknowledgement after sending
the RPMI message to PuC. Call the sbi_hart_hang()
to hang the hart after performing the system reset
via RPMI message.

Fixes: 6a26726e08e4 ("lib/utils: reset: Add RPMI System Reset driver")
Reported-by: Anup Patel <apatel@ventanamicro.com>
Signed-off-by: Rahul Pathak <rpathak@ventanamicro.com>
---
 lib/utils/reset/fdt_reset_rpmi.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/utils/reset/fdt_reset_rpmi.c b/lib/utils/reset/fdt_reset_rpmi.c
index edc53932ccc0..c29715d329c4 100644
--- a/lib/utils/reset/fdt_reset_rpmi.c
+++ b/lib/utils/reset/fdt_reset_rpmi.c
@@ -7,6 +7,7 @@
  *   Rahul Pathak <rpathak@ventanamicro.com>
  */
 
+#include <sbi/sbi_hart.h>
 #include <sbi/sbi_error.h>
 #include <sbi/sbi_system.h>
 #include <sbi/sbi_console.h>
@@ -56,6 +57,8 @@ static void rpmi_do_system_reset(u32 reset_type)
 	if (ret)
 		sbi_printf("system reset failed [type: %d]: ret: %d\n",
 			   reset_type, ret);
+
+	sbi_hart_hang();
 }
 
 /**
-- 
2.48.1


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             reply	other threads:[~2025-09-03 19:19 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-09-03 14:43 Rahul Pathak [this message]
2025-09-10  5:32 ` [PATCH] lib: utils/reset: Hang the hart after RPMI system reset message Samuel Holland
2025-09-10  6:47   ` Rahul Pathak
2025-09-16  4:24 ` Anup Patel

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