dm: test: Add a test for the reset uclass
Add tests that confirm that the drivers work as expected, and we can walk
through the available reset types trying to reset the board.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/test/dm/reset.c b/test/dm/reset.c
new file mode 100644
index 0000000..5d53f25
--- /dev/null
+++ b/test/dm/reset.c
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2015 Google, Inc
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <reset.h>
+#include <asm/state.h>
+#include <asm/test.h>
+#include <dm/test.h>
+#include <test/ut.h>
+
+/* Test that we can use particular reset devices */
+static int dm_test_reset_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_RESET, 0, &dev));
+ ut_asserteq(-ENODEV, reset_request(dev, RESET_WARM));
+ ut_asserteq(-ENODEV, reset_request(dev, RESET_COLD));
+ ut_asserteq(-ENODEV, reset_request(dev, RESET_POWER));
+
+ /* Device 1 is the warm reset device */
+ ut_assertok(uclass_get_device(UCLASS_RESET, 1, &dev));
+ ut_asserteq(-EACCES, reset_request(dev, RESET_WARM));
+ ut_asserteq(-ENOSYS, reset_request(dev, RESET_COLD));
+ ut_asserteq(-ENOSYS, reset_request(dev, RESET_POWER));
+
+ state->reset_allowed[RESET_WARM] = true;
+ ut_asserteq(-EINPROGRESS, reset_request(dev, RESET_WARM));
+ state->reset_allowed[RESET_WARM] = false;
+
+ /* Device 2 is the cold reset device */
+ ut_assertok(uclass_get_device(UCLASS_RESET, 2, &dev));
+ ut_asserteq(-ENOSYS, reset_request(dev, RESET_WARM));
+ ut_asserteq(-EACCES, reset_request(dev, RESET_COLD));
+ state->reset_allowed[RESET_POWER] = false;
+ ut_asserteq(-EACCES, reset_request(dev, RESET_POWER));
+ state->reset_allowed[RESET_POWER] = true;
+
+ return 0;
+}
+DM_TEST(dm_test_reset_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
+
+/* Test that we can walk through the reset devices */
+static int dm_test_reset_walk(struct unit_test_state *uts)
+{
+ struct sandbox_state *state = state_get_current();
+
+ /* If we generate a power reset, we will exit sandbox! */
+ state->reset_allowed[RESET_POWER] = false;
+ ut_asserteq(-EACCES, reset_walk(RESET_WARM));
+ ut_asserteq(-EACCES, reset_walk(RESET_COLD));
+ ut_asserteq(-EACCES, reset_walk(RESET_POWER));
+
+ /*
+ * Enable cold reset - this should make cold reset work, plus a warm
+ * reset should be promoted to cold, since this is the next step
+ * along.
+ */
+ state->reset_allowed[RESET_COLD] = true;
+ ut_asserteq(-EINPROGRESS, reset_walk(RESET_WARM));
+ ut_asserteq(-EINPROGRESS, reset_walk(RESET_COLD));
+ ut_asserteq(-EACCES, reset_walk(RESET_POWER));
+ state->reset_allowed[RESET_COLD] = false;
+ state->reset_allowed[RESET_POWER] = true;
+
+ return 0;
+}
+DM_TEST(dm_test_reset_walk, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);