sandbox: pch: Add a test for the PCH uclass

This uclass currently has no tests. Add a sandbox driver and some simple
tests to provide basic coverage.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: Use "sandbox,pch" for the compatible string, for consistency]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>

1 files changed, 36 insertions, 0 deletions

diff --git a/test/dm/pch.c b/test/dm/pch.c
new file mode 100644
index 0000000000..f184445342
--- /dev/null
+++ b/test/dm/pch.c
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2018 Google LLC
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <pch.h>
+#include <asm/test.h>
+#include <dm/test.h>
+#include <test/ut.h>
+
+/* Test that sandbox PCH works correctly */
+static int dm_test_pch_base(struct unit_test_state *uts)
+{
+	struct udevice *dev;
+	u32 gbase, iobase;
+	ulong sbase;
+
+	ut_assertok(uclass_first_device_err(UCLASS_PCH, &dev));
+	ut_assertok(pch_get_spi_base(dev, &sbase));
+	ut_asserteq(0x10, sbase);
+
+	ut_asserteq(0, sandbox_get_pch_spi_protect(dev));
+	ut_assertok(pch_set_spi_protect(dev, true));
+	ut_asserteq(1, sandbox_get_pch_spi_protect(dev));
+
+	ut_assertok(pch_get_gpio_base(dev, &gbase));
+	ut_asserteq(0x20, gbase);
+
+	ut_assertok(pch_get_io_base(dev, &iobase));
+	ut_asserteq(0x30, iobase);
+
+	return 0;
+}
+DM_TEST(dm_test_pch_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);