xref: /openbmc/u-boot/test/dm/axi.c (revision 725e09b8)
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * (C) Copyright 2018
4  * Mario Six, Guntermann & Drunck GmbH, mario.six@gdsys.cc
5  */
6 
7 #include <common.h>
8 #include <axi.h>
9 #include <dm.h>
10 #include <dm/test.h>
11 #include <test/ut.h>
12 #include <asm/axi.h>
13 
14 /* Test that sandbox AXI works correctly */
15 static int dm_test_axi_base(struct unit_test_state *uts)
16 {
17 	struct udevice *bus;
18 
19 	ut_assertok(uclass_get_device(UCLASS_AXI, 0, &bus));
20 
21 	return 0;
22 }
23 
24 DM_TEST(dm_test_axi_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
25 
26 /* Test that sandbox PCI bus numbering works correctly */
27 static int dm_test_axi_busnum(struct unit_test_state *uts)
28 {
29 	struct udevice *bus;
30 
31 	ut_assertok(uclass_get_device_by_seq(UCLASS_AXI, 0, &bus));
32 
33 	return 0;
34 }
35 
36 DM_TEST(dm_test_axi_busnum, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
37 
38 /* Test that we can use the store device correctly */
39 static int dm_test_axi_store(struct unit_test_state *uts)
40 {
41 	struct udevice *store;
42 	u8 tdata1[] = {0x55, 0x66, 0x77, 0x88};
43 	u8 tdata2[] = {0xaa, 0xbb, 0xcc, 0xdd};
44 	u32 val;
45 	u8 *data;
46 
47 	/* Check that asking for the device automatically fires up AXI */
48 	ut_assertok(uclass_get_device(UCLASS_AXI_EMUL, 0, &store));
49 	ut_assert(device_active(store));
50 
51 	axi_get_store(store, &data);
52 
53 	/* Test reading */
54 	memcpy(data, tdata1, ARRAY_SIZE(tdata1));
55 	axi_read(store, 0, &val, AXI_SIZE_32);
56 	ut_asserteq(0x55667788, val);
57 
58 	memcpy(data + 3, tdata2, ARRAY_SIZE(tdata2));
59 	axi_read(store, 3, &val, AXI_SIZE_32);
60 	ut_asserteq(0xaabbccdd, val);
61 
62 	/* Reset data store */
63 	memset(data, 0, 16);
64 
65 	/* Test writing */
66 	val = 0x55667788;
67 	axi_write(store, 0, &val, AXI_SIZE_32);
68 	ut_asserteq(0, memcmp(data, tdata1, ARRAY_SIZE(tdata1)));
69 
70 	val = 0xaabbccdd;
71 	axi_write(store, 3, &val, AXI_SIZE_32);
72 	ut_asserteq(0, memcmp(data + 3, tdata2, ARRAY_SIZE(tdata1)));
73 
74 	return 0;
75 }
76 
77 DM_TEST(dm_test_axi_store, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
78