From 6b0520c939e068aee9f367be951133c249447082 Mon Sep 17 00:00:00 2001
From: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Date: Wed, 17 Jan 2024 17:46:52 +0100
Subject: [PATCH] cmd: sbi: add support for Debug Trigger Extension

Detect and show if the SBI implements the Debug Trigger Extension.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
---
 arch/riscv/include/asm/sbi.h | 1 +
 cmd/riscv/sbi.c              | 1 +
 2 files changed, 2 insertions(+)

diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h
index bf4c9af622..d1113f3d70 100644
--- a/arch/riscv/include/asm/sbi.h
+++ b/arch/riscv/include/asm/sbi.h
@@ -33,6 +33,7 @@ enum sbi_ext_id {
 	SBI_EXT_CPPC = 0x43505043,
 	SBI_EXT_NACL = 0x4E41434C,
 	SBI_EXT_STA = 0x535441,
+	SBI_EXT_DBTR = 0x44425452,
 };
 
 enum sbi_ext_base_fid {
diff --git a/cmd/riscv/sbi.c b/cmd/riscv/sbi.c
index 940d9bc168..9daf0e247a 100644
--- a/cmd/riscv/sbi.c
+++ b/cmd/riscv/sbi.c
@@ -53,6 +53,7 @@ static struct sbi_ext extensions[] = {
 	{ SBI_EXT_CPPC,			      "Collaborative Processor Performance Control Extension" },
 	{ SBI_EXT_NACL,			      "Nested Acceleration Extension" },
 	{ SBI_EXT_STA,			      "Steal-time Accounting Extension" },
+	{ SBI_EXT_DBTR,			      "Debug Trigger Extension" },
 };
 
 static int do_sbi(struct cmd_tbl *cmdtp, int flag, int argc,
-- 
2.39.5