diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h
index bf4c9af..d1113f3 100644
--- a/arch/riscv/include/asm/sbi.h
+++ b/arch/riscv/include/asm/sbi.h
@@ -33,6 +33,7 @@
 	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 940d9bc..9daf0e2 100644
--- a/cmd/riscv/sbi.c
+++ b/cmd/riscv/sbi.c
@@ -53,6 +53,7 @@
 	{ 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,