1 files changed, 74 insertions, 0 deletions
diff --git a/test/dm/sysreset.c b/test/dm/sysreset.c
new file mode 100644
index 00000000000..5e94c072b65
--- /dev/null
+++ b/test/dm/sysreset.c
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2015 Google, Inc
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <sysreset.h>
+#include <asm/state.h>
+#include <asm/test.h>
+#include <dm/test.h>
+#include <test/ut.h>
+
+/* Test that we can use particular sysreset devices */
+static int dm_test_sysreset_base(struct unit_test_state *uts)
+{
+	struct sandbox_state *state = state_get_current();
+	struct udevice *dev;
+
+	/* Device 0 is the platform data device - it should never respond */
+	ut_assertok(uclass_get_device(UCLASS_SYSRESET, 0, &dev));
+	ut_asserteq(-ENODEV, sysreset_request(dev, SYSRESET_WARM));
+	ut_asserteq(-ENODEV, sysreset_request(dev, SYSRESET_COLD));
+	ut_asserteq(-ENODEV, sysreset_request(dev, SYSRESET_POWER));
+
+	/* Device 1 is the warm sysreset device */
+	ut_assertok(uclass_get_device(UCLASS_SYSRESET, 1, &dev));
+	ut_asserteq(-EACCES, sysreset_request(dev, SYSRESET_WARM));
+	ut_asserteq(-ENOSYS, sysreset_request(dev, SYSRESET_COLD));
+	ut_asserteq(-ENOSYS, sysreset_request(dev, SYSRESET_POWER));
+
+	state->sysreset_allowed[SYSRESET_WARM] = true;
+	ut_asserteq(-EINPROGRESS, sysreset_request(dev, SYSRESET_WARM));
+	state->sysreset_allowed[SYSRESET_WARM] = false;
+
+	/* Device 2 is the cold sysreset device */
+	ut_assertok(uclass_get_device(UCLASS_SYSRESET, 2, &dev));
+	ut_asserteq(-ENOSYS, sysreset_request(dev, SYSRESET_WARM));
+	ut_asserteq(-EACCES, sysreset_request(dev, SYSRESET_COLD));
+	state->sysreset_allowed[SYSRESET_POWER] = false;
+	ut_asserteq(-EACCES, sysreset_request(dev, SYSRESET_POWER));
+	state->sysreset_allowed[SYSRESET_POWER] = true;
+
+	return 0;
+}
+DM_TEST(dm_test_sysreset_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
+
+/* Test that we can walk through the sysreset devices */
+static int dm_test_sysreset_walk(struct unit_test_state *uts)
+{
+	struct sandbox_state *state = state_get_current();
+
+	/* If we generate a power sysreset, we will exit sandbox! */
+	state->sysreset_allowed[SYSRESET_POWER] = false;
+	ut_asserteq(-EACCES, sysreset_walk(SYSRESET_WARM));
+	ut_asserteq(-EACCES, sysreset_walk(SYSRESET_COLD));
+	ut_asserteq(-EACCES, sysreset_walk(SYSRESET_POWER));
+
+	/*
+	 * Enable cold system reset - this should make cold system reset work,
+	 * plus a warm system reset should be promoted to cold, since this is
+	 * the next step along.
+	 */
+	state->sysreset_allowed[SYSRESET_COLD] = true;
+	ut_asserteq(-EINPROGRESS, sysreset_walk(SYSRESET_WARM));
+	ut_asserteq(-EINPROGRESS, sysreset_walk(SYSRESET_COLD));
+	ut_asserteq(-EACCES, sysreset_walk(SYSRESET_POWER));
+	state->sysreset_allowed[SYSRESET_COLD] = false;
+	state->sysreset_allowed[SYSRESET_POWER] = true;
+
+	return 0;
+}
+DM_TEST(dm_test_sysreset_walk, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);