2 * Copyright (c) 2013 Google, Inc
4 * SPDX-License-Identifier: GPL-2.0+
16 #include <dm/uclass-internal.h>
19 DECLARE_GLOBAL_DATA_PTR;
21 static int testfdt_drv_ping(struct udevice *dev, int pingval, int *pingret)
23 const struct dm_test_pdata *pdata = dev->platdata;
24 struct dm_test_priv *priv = dev_get_priv(dev);
26 *pingret = pingval + pdata->ping_add;
27 priv->ping_total += *pingret;
32 static const struct test_ops test_ops = {
33 .ping = testfdt_drv_ping,
36 static int testfdt_ofdata_to_platdata(struct udevice *dev)
38 struct dm_test_pdata *pdata = dev_get_platdata(dev);
40 pdata->ping_add = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
42 pdata->base = fdtdec_get_addr(gd->fdt_blob, dev->of_offset,
48 static int testfdt_drv_probe(struct udevice *dev)
50 struct dm_test_priv *priv = dev_get_priv(dev);
52 priv->ping_total += DM_TEST_START_TOTAL;
57 static const struct udevice_id testfdt_ids[] = {
59 .compatible = "denx,u-boot-fdt-test",
60 .data = DM_TEST_TYPE_FIRST },
62 .compatible = "google,another-fdt-test",
63 .data = DM_TEST_TYPE_SECOND },
67 U_BOOT_DRIVER(testfdt_drv) = {
68 .name = "testfdt_drv",
69 .of_match = testfdt_ids,
70 .id = UCLASS_TEST_FDT,
71 .ofdata_to_platdata = testfdt_ofdata_to_platdata,
72 .probe = testfdt_drv_probe,
74 .priv_auto_alloc_size = sizeof(struct dm_test_priv),
75 .platdata_auto_alloc_size = sizeof(struct dm_test_pdata),
78 /* From here is the testfdt uclass code */
79 int testfdt_ping(struct udevice *dev, int pingval, int *pingret)
81 const struct test_ops *ops = device_get_ops(dev);
86 return ops->ping(dev, pingval, pingret);
89 UCLASS_DRIVER(testfdt) = {
91 .id = UCLASS_TEST_FDT,
94 int dm_check_devices(struct dm_test_state *dms, int num_devices)
101 * Now check that the ping adds are what we expect. This is using the
102 * ping-add property in each node.
104 for (i = 0; i < num_devices; i++) {
107 ret = uclass_get_device(UCLASS_TEST_FDT, i, &dev);
111 * Get the 'ping-expect' property, which tells us what the
112 * ping add should be. We don't use the platdata because we
113 * want to test the code that sets that up
114 * (testfdt_drv_probe()).
116 base = fdtdec_get_addr(gd->fdt_blob, dev->of_offset,
118 debug("dev=%d, base=%d: %s\n", i, base,
119 fdt_get_name(gd->fdt_blob, dev->of_offset, NULL));
121 ut_assert(!dm_check_operations(dms, dev, base,
128 /* Test that FDT-based binding works correctly */
129 static int dm_test_fdt(struct dm_test_state *dms)
131 const int num_devices = 4;
137 ret = dm_scan_fdt(gd->fdt_blob, false);
140 ret = uclass_get(UCLASS_TEST_FDT, &uc);
143 /* These are num_devices compatible root-level device tree nodes */
144 ut_asserteq(num_devices, list_count_items(&uc->dev_head));
146 /* Each should have no platdata / priv */
147 for (i = 0; i < num_devices; i++) {
148 ret = uclass_find_device(UCLASS_TEST_FDT, i, &dev);
150 ut_assert(!dev_get_priv(dev));
151 ut_assert(!dev->platdata);
154 ut_assertok(dm_check_devices(dms, num_devices));
158 DM_TEST(dm_test_fdt, 0);
160 static int dm_test_fdt_pre_reloc(struct dm_test_state *dms)
165 ret = dm_scan_fdt(gd->fdt_blob, true);
168 ret = uclass_get(UCLASS_TEST_FDT, &uc);
171 /* These is only one pre-reloc device */
172 ut_asserteq(1, list_count_items(&uc->dev_head));
176 DM_TEST(dm_test_fdt_pre_reloc, 0);
178 /* Test that sequence numbers are allocated properly */
179 static int dm_test_fdt_uclass_seq(struct dm_test_state *dms)
183 /* A few basic santiy tests */
184 ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_FDT, 3, true, &dev));
185 ut_asserteq_str("b-test", dev->name);
187 ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_FDT, 0, true, &dev));
188 ut_asserteq_str("a-test", dev->name);
190 ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 5,
192 ut_asserteq_ptr(NULL, dev);
195 ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 6, &dev));
196 ut_asserteq_str("e-test", dev->name);
198 ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 7,
202 * Note that c-test nodes are not probed since it is not a top-level
205 ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 3, &dev));
206 ut_asserteq_str("b-test", dev->name);
209 * d-test wants sequence number 3 also, but it can't have it because
210 * b-test gets it first.
212 ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 2, &dev));
213 ut_asserteq_str("d-test", dev->name);
215 /* d-test actually gets 0 */
216 ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 0, &dev));
217 ut_asserteq_str("d-test", dev->name);
219 /* initially no one wants seq 1 */
220 ut_asserteq(-ENODEV, uclass_get_device_by_seq(UCLASS_TEST_FDT, 1,
222 ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
223 ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 1, &dev));
225 /* But now that it is probed, we can find it */
226 ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 1, &dev));
227 ut_asserteq_str("a-test", dev->name);
231 DM_TEST(dm_test_fdt_uclass_seq, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
233 /* Test that we can find a device by device tree offset */
234 static int dm_test_fdt_offset(struct dm_test_state *dms)
236 const void *blob = gd->fdt_blob;
240 node = fdt_path_offset(blob, "/e-test");
242 ut_assertok(uclass_get_device_by_of_offset(UCLASS_TEST_FDT, node,
244 ut_asserteq_str("e-test", dev->name);
246 /* This node should not be bound */
247 node = fdt_path_offset(blob, "/junk");
249 ut_asserteq(-ENODEV, uclass_get_device_by_of_offset(UCLASS_TEST_FDT,
252 /* This is not a top level node so should not be probed */
253 node = fdt_path_offset(blob, "/some-bus/c-test@5");
255 ut_asserteq(-ENODEV, uclass_get_device_by_of_offset(UCLASS_TEST_FDT,
260 DM_TEST(dm_test_fdt_offset, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);