diff --git a/src/target/riscv/riscv.c b/src/target/riscv/riscv.c
index efc30e202..cda16f35b 100644
--- a/src/target/riscv/riscv.c
+++ b/src/target/riscv/riscv.c
@@ -1597,22 +1597,6 @@ riscv_insn_t riscv_read_debug_buffer(struct target *target, int index)
 	return r->read_debug_buffer(target, index);
 }
 
-riscv_addr_t riscv_read_debug_buffer_x(struct target *target, int index)
-{
-	riscv_addr_t out = 0;
-	switch (riscv_xlen(target)) {
-	case 64:
-		out |= (uint64_t)riscv_read_debug_buffer(target, index + 1) << 32;
-	case 32:
-		out |= riscv_read_debug_buffer(target, index + 0) <<  0;
-		break;
-	default:
-		LOG_ERROR("unsupported XLEN %d", riscv_xlen(target));
-		abort();
-	}
-	return out;
-}
-
 int riscv_execute_debug_buffer(struct target *target)
 {
 	RISCV_INFO(r);
diff --git a/src/target/riscv/riscv.h b/src/target/riscv/riscv.h
index 2af312561..71c68a2a7 100644
--- a/src/target/riscv/riscv.h
+++ b/src/target/riscv/riscv.h
@@ -222,9 +222,7 @@ int riscv_count_triggers_of_hart(struct target *target, int hartid);
 size_t riscv_debug_buffer_size(struct target *target);
 
 riscv_insn_t riscv_read_debug_buffer(struct target *target, int index);
-riscv_addr_t riscv_read_debug_buffer_x(struct target *target, int index);
 int riscv_write_debug_buffer(struct target *target, int index, riscv_insn_t insn);
-int riscv_write_debug_buffer_x(struct target *target, int index, riscv_addr_t data);
 int riscv_execute_debug_buffer(struct target *target);
 
 void riscv_fill_dmi_nop_u64(struct target *target, char *buf);