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,
92 .flags = DM_UC_FLAG_SEQ_ALIAS,
95 int dm_check_devices(struct dm_test_state *dms, int num_devices)
102 * Now check that the ping adds are what we expect. This is using the
103 * ping-add property in each node.
105 for (i = 0; i < num_devices; i++) {
108 ret = uclass_get_device(UCLASS_TEST_FDT, i, &dev);
112 * Get the 'ping-expect' property, which tells us what the
113 * ping add should be. We don't use the platdata because we
114 * want to test the code that sets that up
115 * (testfdt_drv_probe()).
117 base = fdtdec_get_addr(gd->fdt_blob, dev->of_offset,
119 debug("dev=%d, base=%d: %s\n", i, base,
120 fdt_get_name(gd->fdt_blob, dev->of_offset, NULL));
122 ut_assert(!dm_check_operations(dms, dev, base,
129 /* Test that FDT-based binding works correctly */
130 static int dm_test_fdt(struct dm_test_state *dms)
132 const int num_devices = 6;
138 ret = dm_scan_fdt(gd->fdt_blob, false);
141 ret = uclass_get(UCLASS_TEST_FDT, &uc);
144 /* These are num_devices compatible root-level device tree nodes */
145 ut_asserteq(num_devices, list_count_items(&uc->dev_head));
147 /* Each should have platform data but no private data */
148 for (i = 0; i < num_devices; i++) {
149 ret = uclass_find_device(UCLASS_TEST_FDT, i, &dev);
151 ut_assert(!dev_get_priv(dev));
152 ut_assert(dev->platdata);
155 ut_assertok(dm_check_devices(dms, num_devices));
159 DM_TEST(dm_test_fdt, 0);
161 static int dm_test_fdt_pre_reloc(struct dm_test_state *dms)
166 ret = dm_scan_fdt(gd->fdt_blob, true);
169 ret = uclass_get(UCLASS_TEST_FDT, &uc);
172 /* These is only one pre-reloc device */
173 ut_asserteq(1, list_count_items(&uc->dev_head));
177 DM_TEST(dm_test_fdt_pre_reloc, 0);
179 /* Test that sequence numbers are allocated properly */
180 static int dm_test_fdt_uclass_seq(struct dm_test_state *dms)
184 /* A few basic santiy tests */
185 ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_FDT, 3, true, &dev));
186 ut_asserteq_str("b-test", dev->name);
188 ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_FDT, 8, true, &dev));
189 ut_asserteq_str("a-test", dev->name);
191 ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 5,
193 ut_asserteq_ptr(NULL, dev);
196 ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 6, &dev));
197 ut_asserteq_str("e-test", dev->name);
199 ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 7,
203 * Note that c-test nodes are not probed since it is not a top-level
206 ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 3, &dev));
207 ut_asserteq_str("b-test", dev->name);
210 * d-test wants sequence number 3 also, but it can't have it because
211 * b-test gets it first.
213 ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 2, &dev));
214 ut_asserteq_str("d-test", dev->name);
216 /* d-test actually gets 0 */
217 ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 0, &dev));
218 ut_asserteq_str("d-test", dev->name);
220 /* initially no one wants seq 1 */
221 ut_asserteq(-ENODEV, uclass_get_device_by_seq(UCLASS_TEST_FDT, 1,
223 ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
224 ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 4, &dev));
226 /* But now that it is probed, we can find it */
227 ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 1, &dev));
228 ut_asserteq_str("f-test", dev->name);
232 DM_TEST(dm_test_fdt_uclass_seq, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
234 /* Test that we can find a device by device tree offset */
235 static int dm_test_fdt_offset(struct dm_test_state *dms)
237 const void *blob = gd->fdt_blob;
241 node = fdt_path_offset(blob, "/e-test");
243 ut_assertok(uclass_get_device_by_of_offset(UCLASS_TEST_FDT, node,
245 ut_asserteq_str("e-test", dev->name);
247 /* This node should not be bound */
248 node = fdt_path_offset(blob, "/junk");
250 ut_asserteq(-ENODEV, uclass_get_device_by_of_offset(UCLASS_TEST_FDT,
253 /* This is not a top level node so should not be probed */
254 node = fdt_path_offset(blob, "/some-bus/c-test@5");
256 ut_asserteq(-ENODEV, uclass_get_device_by_of_offset(UCLASS_TEST_FDT,
261 DM_TEST(dm_test_fdt_offset, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);