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 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 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 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 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
