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1 /*
2 * Copyright (c) 2016, NVIDIA CORPORATION.
3 *
4 * SPDX-License-Identifier: GPL-2.0
5 */
6
7 #include <common.h>
8 #include <dm.h>
9 #include <mailbox.h>
10 #include <asm/io.h>
11
12 struct sandbox_mbox_test {
13 struct mbox_chan chan;
14 };
15
16 int sandbox_mbox_test_get(struct udevice *dev)
17 {
18 struct sandbox_mbox_test *sbmt = dev_get_priv(dev);
19
20 return mbox_get_by_name(dev, "test", &sbmt->chan);
21 }
22
23 int sandbox_mbox_test_send(struct udevice *dev, uint32_t msg)
24 {
25 struct sandbox_mbox_test *sbmt = dev_get_priv(dev);
26
27 return mbox_send(&sbmt->chan, &msg);
28 }
29
30 int sandbox_mbox_test_recv(struct udevice *dev, uint32_t *msg)
31 {
32 struct sandbox_mbox_test *sbmt = dev_get_priv(dev);
33
34 return mbox_recv(&sbmt->chan, msg, 100);
35 }
36
37 int sandbox_mbox_test_free(struct udevice *dev)
38 {
39 struct sandbox_mbox_test *sbmt = dev_get_priv(dev);
40
41 return mbox_free(&sbmt->chan);
42 }
43
44 static const struct udevice_id sandbox_mbox_test_ids[] = {
45 { .compatible = "sandbox,mbox-test" },
46 { }
47 };
48
49 U_BOOT_DRIVER(sandbox_mbox_test) = {
50 .name = "sandbox_mbox_test",
51 .id = UCLASS_MISC,
52 .of_match = sandbox_mbox_test_ids,
53 .priv_auto_alloc_size = sizeof(struct sandbox_mbox_test),
54 };