From ec9594a50f02944944dcc76a6cffce9861e8614d Mon Sep 17 00:00:00 2001
From: Alex Marginean
Date: Mon, 3 Jun 2019 19:12:28 +0300
Subject: test: dm: add MDIO test

A very simple test for DM_MDIO, mimicks a register write/read through the
sandbox bus to a dummy PHY.

Signed-off-by: Alex Marginean <alexm.osslist@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
---
 test/dm/Makefile |  1 +
 test/dm/mdio.c   | 53 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 54 insertions(+)
 create mode 100644 test/dm/mdio.c

(limited to 'test')

diff --git a/test/dm/Makefile b/test/dm/Makefile
index 420bf811545..6a36cc0a328 100644
--- a/test/dm/Makefile
+++ b/test/dm/Makefile
@@ -62,4 +62,5 @@ obj-$(CONFIG_SOUND) += sound.o
 obj-$(CONFIG_TEE) += tee.o
 obj-$(CONFIG_VIRTIO_SANDBOX) += virtio.o
 obj-$(CONFIG_DMA) += dma.o
+obj-$(CONFIG_DM_MDIO) += mdio.o
 endif
diff --git a/test/dm/mdio.c b/test/dm/mdio.c
new file mode 100644
index 00000000000..5b66255f7d4
--- /dev/null
+++ b/test/dm/mdio.c
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2019
+ * Alex Marginean, NXP
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <dm/test.h>
+#include <misc.h>
+#include <test/ut.h>
+#include <miiphy.h>
+
+/* macros copied over from mdio_sandbox.c */
+#define SANDBOX_PHY_ADDR	5
+#define SANDBOX_PHY_REG		0
+
+#define TEST_REG_VALUE		0xabcd
+
+static int dm_test_mdio(struct unit_test_state *uts)
+{
+	struct uclass *uc;
+	struct udevice *dev;
+	struct mdio_ops *ops;
+	u16 reg;
+
+	ut_assertok(uclass_get(UCLASS_MDIO, &uc));
+
+	ut_assertok(uclass_get_device_by_name(UCLASS_MDIO, "mdio-test", &dev));
+
+	ops = mdio_get_ops(dev);
+	ut_assertnonnull(ops);
+	ut_assertnonnull(ops->read);
+	ut_assertnonnull(ops->write);
+
+	ut_assertok(ops->write(dev, SANDBOX_PHY_ADDR, MDIO_DEVAD_NONE,
+			       SANDBOX_PHY_REG, TEST_REG_VALUE));
+	reg = ops->read(dev, SANDBOX_PHY_ADDR, MDIO_DEVAD_NONE,
+			SANDBOX_PHY_REG);
+	ut_asserteq(reg, TEST_REG_VALUE);
+
+	ut_assert(ops->read(dev, SANDBOX_PHY_ADDR + 1, MDIO_DEVAD_NONE,
+			    SANDBOX_PHY_REG) != 0);
+
+	ut_assertok(ops->reset(dev));
+	reg = ops->read(dev, SANDBOX_PHY_ADDR, MDIO_DEVAD_NONE,
+			SANDBOX_PHY_REG);
+	ut_asserteq(reg, 0);
+
+	return 0;
+}
+
+DM_TEST(dm_test_mdio, DM_TESTF_SCAN_FDT);
-- 
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