--- /dev/null
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2021 Sean Anderson <sean.anderson@seco.com>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <log.h>
+#include <sysinfo.h>
+#include <asm/gpio.h>
+#include <dm/test.h>
+#include <test/test.h>
+#include <test/ut.h>
+
+static int dm_test_sysinfo_gpio(struct unit_test_state *uts)
+{
+ char buf[64];
+ int val;
+ struct udevice *sysinfo, *gpio;
+
+ ut_assertok(uclass_get_device_by_name(UCLASS_SYSINFO, "sysinfo-gpio",
+ &sysinfo));
+ ut_assertok(uclass_get_device_by_name(UCLASS_GPIO, "base-gpios", &gpio));
+
+ /*
+ * Set up pins: pull-up (1), pull-down (0) and floating (2). This should
+ * result in digits 2 0 1, i.e. 2 * 9 + 1 * 3 = 19
+ */
+ sandbox_gpio_set_flags(gpio, 15, GPIOD_EXT_PULL_UP);
+ sandbox_gpio_set_flags(gpio, 16, GPIOD_EXT_PULL_DOWN);
+ sandbox_gpio_set_flags(gpio, 17, 0);
+ ut_assertok(sysinfo_detect(sysinfo));
+ ut_assertok(sysinfo_get_int(sysinfo, SYSINFO_ID_BOARD_MODEL, &val));
+ ut_asserteq(19, val);
+ ut_assertok(sysinfo_get_str(sysinfo, SYSINFO_ID_BOARD_MODEL, sizeof(buf),
+ buf));
+ ut_asserteq_str("rev_a", buf);
+
+ /*
+ * Set up pins: floating (2), pull-up (1) and pull-down (0). This should
+ * result in digits 0 1 2, i.e. 1 * 3 + 2 = 5
+ */
+ sandbox_gpio_set_flags(gpio, 15, 0);
+ sandbox_gpio_set_flags(gpio, 16, GPIOD_EXT_PULL_UP);
+ sandbox_gpio_set_flags(gpio, 17, GPIOD_EXT_PULL_DOWN);
+ ut_assertok(sysinfo_detect(sysinfo));
+ ut_assertok(sysinfo_get_int(sysinfo, SYSINFO_ID_BOARD_MODEL, &val));
+ ut_asserteq(5, val);
+ ut_assertok(sysinfo_get_str(sysinfo, SYSINFO_ID_BOARD_MODEL, sizeof(buf),
+ buf));
+ ut_asserteq_str("foo", buf);
+
+ /*
+ * Set up pins: floating (2), pull-up (1) and pull-down (0). This should
+ * result in digits 1 2 0, i.e. 1 * 9 + 2 * 3 = 15
+ */
+ sandbox_gpio_set_flags(gpio, 15, GPIOD_EXT_PULL_DOWN);
+ sandbox_gpio_set_flags(gpio, 16, 0);
+ sandbox_gpio_set_flags(gpio, 17, GPIOD_EXT_PULL_UP);
+ ut_assertok(sysinfo_detect(sysinfo));
+ ut_assertok(sysinfo_get_int(sysinfo, SYSINFO_ID_BOARD_MODEL, &val));
+ ut_asserteq(15, val);
+ ut_assertok(sysinfo_get_str(sysinfo, SYSINFO_ID_BOARD_MODEL, sizeof(buf),
+ buf));
+ ut_asserteq_str("unknown", buf);
+
+ return 0;
+}
+DM_TEST(dm_test_sysinfo_gpio, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);