--- /dev/null
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2018
+ * Mario Six, Guntermann & Drunck GmbH, mario.six@gdsys.cc
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <board.h>
+
+#include "sandbox.h"
+
+struct board_sandbox_priv {
+ bool called_detect;
+ int test_i1;
+ int test_i2;
+};
+
+char vacation_spots[][64] = {"R'lyeh", "Dreamlands", "Plateau of Leng",
+ "Carcosa", "Yuggoth", "The Nameless City"};
+
+int board_sandbox_detect(struct udevice *dev)
+{
+ struct board_sandbox_priv *priv = dev_get_priv(dev);
+
+ priv->called_detect = true;
+ priv->test_i2 = 100;
+
+ return 0;
+}
+
+int board_sandbox_get_bool(struct udevice *dev, int id, bool *val)
+{
+ struct board_sandbox_priv *priv = dev_get_priv(dev);
+
+ switch (id) {
+ case BOOL_CALLED_DETECT:
+ /* Checks if the dectect method has been called */
+ *val = priv->called_detect;
+ return 0;
+ }
+
+ return -ENOENT;
+}
+
+int board_sandbox_get_int(struct udevice *dev, int id, int *val)
+{
+ struct board_sandbox_priv *priv = dev_get_priv(dev);
+
+ switch (id) {
+ case INT_TEST1:
+ *val = priv->test_i1;
+ /* Increments with every call */
+ priv->test_i1++;
+ return 0;
+ case INT_TEST2:
+ *val = priv->test_i2;
+ /* Decrements with every call */
+ priv->test_i2--;
+ return 0;
+ }
+
+ return -ENOENT;
+}
+
+int board_sandbox_get_str(struct udevice *dev, int id, size_t size, char *val)
+{
+ struct board_sandbox_priv *priv = dev_get_priv(dev);
+ int i1 = priv->test_i1;
+ int i2 = priv->test_i2;
+ int index = (i1 * i2) % ARRAY_SIZE(vacation_spots);
+
+ switch (id) {
+ case STR_VACATIONSPOT:
+ /* Picks a vacation spot depending on i1 and i2 */
+ snprintf(val, size, vacation_spots[index]);
+ return 0;
+ }
+
+ return -ENOENT;
+}
+
+static const struct udevice_id board_sandbox_ids[] = {
+ { .compatible = "sandbox,board_sandbox" },
+ { /* sentinel */ }
+};
+
+static const struct board_ops board_sandbox_ops = {
+ .detect = board_sandbox_detect,
+ .get_bool = board_sandbox_get_bool,
+ .get_int = board_sandbox_get_int,
+ .get_str = board_sandbox_get_str,
+};
+
+int board_sandbox_probe(struct udevice *dev)
+{
+ return 0;
+}
+
+U_BOOT_DRIVER(board_sandbox) = {
+ .name = "board_sandbox",
+ .id = UCLASS_BOARD,
+ .of_match = board_sandbox_ids,
+ .ops = &board_sandbox_ops,
+ .priv_auto_alloc_size = sizeof(struct board_sandbox_priv),
+ .probe = board_sandbox_probe,
+};
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2018
+ * Mario Six, Guntermann & Drunck GmbH, mario.six@gdsys.cc
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <dm/test.h>
+#include <board.h>
+#include <test/ut.h>
+
+#include "../../drivers/board/sandbox.h"
+
+static int dm_test_board(struct unit_test_state *uts)
+{
+ struct udevice *board;
+ bool called_detect;
+ char str[64];
+ int i;
+
+ board_get(&board);
+ ut_assert(board);
+
+ board_get_bool(board, BOOL_CALLED_DETECT, &called_detect);
+ ut_assert(!called_detect);
+
+ board_detect(board);
+
+ board_get_bool(board, BOOL_CALLED_DETECT, &called_detect);
+ ut_assert(called_detect);
+
+ board_get_str(board, STR_VACATIONSPOT, sizeof(str), str);
+ ut_assertok(strcmp(str, "R'lyeh"));
+
+ board_get_int(board, INT_TEST1, &i);
+ ut_asserteq(0, i);
+
+ board_get_int(board, INT_TEST2, &i);
+ ut_asserteq(100, i);
+
+ board_get_str(board, STR_VACATIONSPOT, sizeof(str), str);
+ ut_assertok(strcmp(str, "Carcosa"));
+
+ board_get_int(board, INT_TEST1, &i);
+ ut_asserteq(1, i);
+
+ board_get_int(board, INT_TEST2, &i);
+ ut_asserteq(99, i);
+
+ board_get_str(board, STR_VACATIONSPOT, sizeof(str), str);
+ ut_assertok(strcmp(str, "Yuggoth"));
+
+ return 0;
+}
+
+DM_TEST(dm_test_board, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);