cli: Add a command to show cmdline history

There is a function for this but it is never used. Showing the history is
a useful feature, so add a new 'history' command.

Signed-off-by: Simon Glass <sjg@chromium.org>

1 files changed, 23 insertions, 0 deletions

diff --git a/cmd/history.c b/cmd/history.c
new file mode 100644
index 00000000000..b6bf4670b1c
--- /dev/null
+++ b/cmd/history.c
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2023 Google LLC
+ * Written by Simon Glass <sjg@chromium.org>
+ */
+
+#include <common.h>
+#include <command.h>
+#include <cli.h>
+
+static int do_history(struct cmd_tbl *cmdtp, int flag, int argc,
+		      char *const argv[])
+{
+	cread_print_hist_list();
+
+	return 0;
+}
+
+U_BOOT_CMD(
+	history,	CONFIG_SYS_MAXARGS,	1,	do_history,
+	"print command history",
+	""
+);