test: Add a common unit test command

Add a command that all other unit tests should be a sub-command of.
Also include a command that will run all tests.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Acked-by: Simon Glass <sjg@chromium.org>
diff --git a/test/cmd_ut.c b/test/cmd_ut.c
new file mode 100644
index 0000000..5d03321
--- /dev/null
+++ b/test/cmd_ut.c
@@ -0,0 +1,62 @@
+/*
+ * (C) Copyright 2015
+ * Joe Hershberger, National Instruments, joe.hershberger@ni.com
+ *
+ * SPDX-License-Identifier:	GPL-2.0
+ */
+
+#include <common.h>
+#include <command.h>
+#include <test/suites.h>
+
+static int do_ut_all(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
+
+static cmd_tbl_t cmd_ut_sub[] = {
+	U_BOOT_CMD_MKENT(all, CONFIG_SYS_MAXARGS, 1, do_ut_all, "", ""),
+};
+
+static int do_ut_all(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	int i;
+	int retval;
+	int any_fail = 0;
+
+	for (i = 1; i < ARRAY_SIZE(cmd_ut_sub); i++) {
+		printf("----Running %s tests----\n", cmd_ut_sub[i].name);
+		retval = cmd_ut_sub[i].cmd(cmdtp, flag, 1, &cmd_ut_sub[i].name);
+		if (!any_fail)
+			any_fail = retval;
+	}
+
+	return any_fail;
+}
+
+static int do_ut(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	cmd_tbl_t *cp;
+
+	if (argc < 2)
+		return CMD_RET_USAGE;
+
+	/* drop initial "ut" arg */
+	argc--;
+	argv++;
+
+	cp = find_cmd_tbl(argv[0], cmd_ut_sub, ARRAY_SIZE(cmd_ut_sub));
+
+	if (cp)
+		return cp->cmd(cmdtp, flag, argc, argv);
+
+	return CMD_RET_USAGE;
+}
+
+#ifdef CONFIG_SYS_LONGHELP
+static char ut_help_text[] =
+	"all - execute all enabled tests\n"
+	;
+#endif
+
+U_BOOT_CMD(
+	ut, CONFIG_SYS_MAXARGS, 1, do_ut,
+	"unit tests", ut_help_text
+);