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