test: Add AXI test

Add tests for the AXI uclass.
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Mario Six <mario.six@gdsys.cc>

test/dm/Makefile

@@ -44,4 +44,5 @@ obj-$(CONFIG_DM_VIDEO) += video.o
 obj-$(CONFIG_ADC) += adc.o
 obj-$(CONFIG_SPMI) += spmi.o
 obj-$(CONFIG_WDT) += wdt.o
+obj-$(CONFIG_AXI) += axi.o
 endif

test/dm/axi.c

+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2018
+ * Mario Six, Guntermann & Drunck GmbH, mario.six@gdsys.cc
+ */
+
+#include <common.h>
+#include <axi.h>
+#include <dm.h>
+#include <dm/test.h>
+#include <test/ut.h>
+#include <asm/axi.h>
+
+/* Test that sandbox AXI works correctly */
+static int dm_test_axi_base(struct unit_test_state *uts)
+{
+	struct udevice *bus;
+
+	ut_assertok(uclass_get_device(UCLASS_AXI, 0, &bus));
+
+	return 0;
+}
+
+DM_TEST(dm_test_axi_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
+
+/* Test that sandbox PCI bus numbering works correctly */
+static int dm_test_axi_busnum(struct unit_test_state *uts)
+{
+	struct udevice *bus;
+
+	ut_assertok(uclass_get_device_by_seq(UCLASS_AXI, 0, &bus));
+
+	return 0;
+}
+
+DM_TEST(dm_test_axi_busnum, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
+
+/* Test that we can use the store device correctly */
+static int dm_test_axi_store(struct unit_test_state *uts)
+{
+	struct udevice *store;
+	u8 tdata1[] = {0x55, 0x66, 0x77, 0x88};
+	u8 tdata2[] = {0xaa, 0xbb, 0xcc, 0xdd};
+	u32 val;
+	u8 *data;
+
+	/* Check that asking for the device automatically fires up AXI */
+	ut_assertok(uclass_get_device(UCLASS_AXI_EMUL, 0, &store));
+	ut_assert(device_active(store));
+
+	axi_get_store(store, &data);
+
+	/* Test reading */
+	memcpy(data, tdata1, ARRAY_SIZE(tdata1));
+	axi_read(store, 0, &val, AXI_SIZE_32);
+	ut_asserteq(0x55667788, val);
+
+	memcpy(data + 3, tdata2, ARRAY_SIZE(tdata2));
+	axi_read(store, 3, &val, AXI_SIZE_32);
+	ut_asserteq(0xaabbccdd, val);
+
+	/* Reset data store */
+	memset(data, 0, 16);
+
+	/* Test writing */
+	val = 0x55667788;
+	axi_write(store, 0, &val, AXI_SIZE_32);
+	ut_asserteq(0, memcmp(data, tdata1, ARRAY_SIZE(tdata1)));
+
+	val = 0xaabbccdd;
+	axi_write(store, 3, &val, AXI_SIZE_32);
+	ut_asserteq(0, memcmp(data + 3, tdata2, ARRAY_SIZE(tdata1)));
+
+	return 0;
+}
+
+DM_TEST(dm_test_axi_store, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);