1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (c) 2020 Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
4 */
5
6 #include <dm.h>
7 #include <mapmem.h>
8 #include <phys2bus.h>
9 #include <dm/device.h>
10 #include <dm/ofnode.h>
11 #include <dm/root.h>
12 #include <dm/test.h>
13 #include <dm/uclass-internal.h>
14 #include <test/ut.h>
15
dm_test_phys_to_bus(struct unit_test_state * uts)16 static int dm_test_phys_to_bus(struct unit_test_state *uts)
17 {
18 struct udevice *dev;
19 ofnode node;
20
21 node = ofnode_path("/mmio-bus@0");
22 ut_assert(ofnode_valid(node));
23 ut_assertok(uclass_get_device_by_ofnode(UCLASS_TEST_BUS, node, &dev));
24 /* In this case it should be transparent, no dma-ranges in parent bus */
25 ut_asserteq_addr((void*)0xfffffULL, (void*)dev_phys_to_bus(dev, 0xfffff));
26 ut_asserteq_addr((void*)0xfffffULL, (void*)(ulong)dev_bus_to_phys(dev, 0xfffff));
27
28 node = ofnode_path("/mmio-bus@0/subnode@0");
29 ut_assert(ofnode_valid(node));
30 ut_assertok(uclass_get_device_by_ofnode(UCLASS_TEST_FDT, node, &dev));
31 ut_asserteq_addr((void*)0x100fffffULL, (void*)dev_phys_to_bus(dev, 0xfffff));
32 ut_asserteq_addr((void*)0xfffffULL, (void*)(ulong)dev_bus_to_phys(dev, 0x100fffff));
33
34 return 0;
35 }
36 DM_TEST(dm_test_phys_to_bus, UTF_SCAN_PDATA | UTF_SCAN_FDT);
37