xref: /openbmc/u-boot/test/dm/mailbox.c (revision 8961b524)
1*8961b524SStephen Warren /*
2*8961b524SStephen Warren  * Copyright (c) 2016, NVIDIA CORPORATION.
3*8961b524SStephen Warren  *
4*8961b524SStephen Warren  * SPDX-License-Identifier: GPL-2.0
5*8961b524SStephen Warren  */
6*8961b524SStephen Warren 
7*8961b524SStephen Warren #include <common.h>
8*8961b524SStephen Warren #include <dm.h>
9*8961b524SStephen Warren #include <dm/test.h>
10*8961b524SStephen Warren #include <asm/mbox.h>
11*8961b524SStephen Warren #include <test/ut.h>
12*8961b524SStephen Warren 
13*8961b524SStephen Warren static int dm_test_mailbox(struct unit_test_state *uts)
14*8961b524SStephen Warren {
15*8961b524SStephen Warren 	struct udevice *dev;
16*8961b524SStephen Warren 	uint32_t msg;
17*8961b524SStephen Warren 
18*8961b524SStephen Warren 	ut_assertok(uclass_get_device_by_name(UCLASS_MISC, "mbox-test", &dev));
19*8961b524SStephen Warren 	ut_assertok(sandbox_mbox_test_get(dev));
20*8961b524SStephen Warren 
21*8961b524SStephen Warren 	ut_asserteq(-ETIMEDOUT, sandbox_mbox_test_recv(dev, &msg));
22*8961b524SStephen Warren 	ut_assertok(sandbox_mbox_test_send(dev, 0xaaff9955UL));
23*8961b524SStephen Warren 	ut_assertok(sandbox_mbox_test_recv(dev, &msg));
24*8961b524SStephen Warren 	ut_asserteq(msg, 0xaaff9955UL ^ SANDBOX_MBOX_PING_XOR);
25*8961b524SStephen Warren 	ut_asserteq(-ETIMEDOUT, sandbox_mbox_test_recv(dev, &msg));
26*8961b524SStephen Warren 
27*8961b524SStephen Warren 	ut_assertok(sandbox_mbox_test_free(dev));
28*8961b524SStephen Warren 
29*8961b524SStephen Warren 	return 0;
30*8961b524SStephen Warren }
31*8961b524SStephen Warren DM_TEST(dm_test_mailbox, DM_TESTF_SCAN_FDT);
32