1 files changed, 378 insertions, 0 deletions
diff --git a/roms/u-boot/test/dm/pci.c b/roms/u-boot/test/dm/pci.c
new file mode 100644
index 000000000..fa2e4a855
--- /dev/null
+++ b/roms/u-boot/test/dm/pci.c
@@ -0,0 +1,378 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2015 Google, Inc
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <asm/io.h>
+#include <asm/test.h>
+#include <dm/test.h>
+#include <test/test.h>
+#include <test/ut.h>
+
+/* Test that sandbox PCI works correctly */
+static int dm_test_pci_base(struct unit_test_state *uts)
+{
+	struct udevice *bus;
+
+	ut_assertok(uclass_get_device(UCLASS_PCI, 0, &bus));
+
+	return 0;
+}
+DM_TEST(dm_test_pci_base, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
+
+/* Test that sandbox PCI bus numbering and device works correctly */
+static int dm_test_pci_busdev(struct unit_test_state *uts)
+{
+	struct udevice *bus;
+	struct udevice *swap;
+	u16 vendor, device;
+
+	/* Test bus#0 and its devices */
+	ut_assertok(uclass_get_device_by_seq(UCLASS_PCI, 0, &bus));
+
+	ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(0, 0x00, 0), &swap));
+	vendor = 0;
+	ut_assertok(dm_pci_read_config16(swap, PCI_VENDOR_ID, &vendor));
+	ut_asserteq(SANDBOX_PCI_VENDOR_ID, vendor);
+	ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(0, 0x1f, 0), &swap));
+	device = 0;
+	ut_assertok(dm_pci_read_config16(swap, PCI_DEVICE_ID, &device));
+	ut_asserteq(SANDBOX_PCI_SWAP_CASE_EMUL_ID, device);
+
+	/* Test bus#1 and its devices */
+	ut_assertok(uclass_get_device_by_seq(UCLASS_PCI, 1, &bus));
+
+	ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(1, 0x08, 0), &swap));
+	vendor = 0;
+	ut_assertok(dm_pci_read_config16(swap, PCI_VENDOR_ID, &vendor));
+	ut_asserteq(SANDBOX_PCI_VENDOR_ID, vendor);
+	ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(1, 0x0c, 0), &swap));
+	device = 0;
+	ut_assertok(dm_pci_read_config16(swap, PCI_DEVICE_ID, &device));
+	ut_asserteq(SANDBOX_PCI_SWAP_CASE_EMUL_ID, device);
+
+	return 0;
+}
+DM_TEST(dm_test_pci_busdev, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
+
+/* Test that we can use the swapcase device correctly */
+static int dm_test_pci_swapcase(struct unit_test_state *uts)
+{
+	struct udevice *swap;
+	ulong io_addr, mem_addr;
+	char *ptr;
+
+	/* Check that asking for the device 0 automatically fires up PCI */
+	ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(0, 0x00, 0), &swap));
+
+	/* First test I/O */
+	io_addr = dm_pci_read_bar32(swap, 0);
+	outb(2, io_addr);
+	ut_asserteq(2, inb(io_addr));
+
+	/*
+	 * Now test memory mapping - note we must unmap and remap to cause
+	 * the swapcase emulation to see our data and response.
+	 */
+	mem_addr = dm_pci_read_bar32(swap, 1);
+	ptr = map_sysmem(mem_addr, 20);
+	strcpy(ptr, "This is a TesT");
+	unmap_sysmem(ptr);
+
+	ptr = map_sysmem(mem_addr, 20);
+	ut_asserteq_str("tHIS IS A tESt", ptr);
+	unmap_sysmem(ptr);
+
+	/* Check that asking for the device 1 automatically fires up PCI */
+	ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(0, 0x1f, 0), &swap));
+
+	/* First test I/O */
+	io_addr = dm_pci_read_bar32(swap, 0);
+	outb(2, io_addr);
+	ut_asserteq(2, inb(io_addr));
+
+	/*
+	 * Now test memory mapping - note we must unmap and remap to cause
+	 * the swapcase emulation to see our data and response.
+	 */
+	mem_addr = dm_pci_read_bar32(swap, 1);
+	ptr = map_sysmem(mem_addr, 20);
+	strcpy(ptr, "This is a TesT");
+	unmap_sysmem(ptr);
+
+	ptr = map_sysmem(mem_addr, 20);
+	ut_asserteq_str("tHIS IS A tESt", ptr);
+	unmap_sysmem(ptr);
+
+	return 0;
+}
+DM_TEST(dm_test_pci_swapcase, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
+
+/* Test that we can dynamically bind the device driver correctly */
+static int dm_test_pci_drvdata(struct unit_test_state *uts)
+{
+	struct udevice *bus, *swap;
+
+	/* Check that asking for the device automatically fires up PCI */
+	ut_assertok(uclass_get_device_by_seq(UCLASS_PCI, 1, &bus));
+
+	ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(1, 0x08, 0), &swap));
+	ut_asserteq(SWAP_CASE_DRV_DATA, swap->driver_data);
+	ut_assertok(dev_has_ofnode(swap));
+	ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(1, 0x0c, 0), &swap));
+	ut_asserteq(SWAP_CASE_DRV_DATA, swap->driver_data);
+	ut_assertok(dev_has_ofnode(swap));
+	ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(1, 0x10, 0), &swap));
+	ut_asserteq(SWAP_CASE_DRV_DATA, swap->driver_data);
+	ut_assertok(!dev_has_ofnode(swap));
+
+	return 0;
+}
+DM_TEST(dm_test_pci_drvdata, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
+
+/* Test that devices on PCI bus#2 can be accessed correctly */
+static int dm_test_pci_mixed(struct unit_test_state *uts)
+{
+	/* PCI bus#2 has both statically and dynamic declared devices */
+	struct udevice *bus, *swap;
+	u16 vendor, device;
+	ulong io_addr, mem_addr;
+	char *ptr;
+
+	ut_assertok(uclass_get_device_by_seq(UCLASS_PCI, 2, &bus));
+
+	/* Test the dynamic device */
+	ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(2, 0x08, 0), &swap));
+	vendor = 0;
+	ut_assertok(dm_pci_read_config16(swap, PCI_VENDOR_ID, &vendor));
+	ut_asserteq(SANDBOX_PCI_VENDOR_ID, vendor);
+
+	/* First test I/O */
+	io_addr = dm_pci_read_bar32(swap, 0);
+	outb(2, io_addr);
+	ut_asserteq(2, inb(io_addr));
+
+	/*
+	 * Now test memory mapping - note we must unmap and remap to cause
+	 * the swapcase emulation to see our data and response.
+	 */
+	mem_addr = dm_pci_read_bar32(swap, 1);
+	ptr = map_sysmem(mem_addr, 30);
+	strcpy(ptr, "This is a TesT oN dYNAMIc");
+	unmap_sysmem(ptr);
+
+	ptr = map_sysmem(mem_addr, 30);
+	ut_asserteq_str("tHIS IS A tESt On DynamiC", ptr);
+	unmap_sysmem(ptr);
+
+	/* Test the static device */
+	ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(2, 0x1f, 0), &swap));
+	device = 0;
+	ut_assertok(dm_pci_read_config16(swap, PCI_DEVICE_ID, &device));
+	ut_asserteq(SANDBOX_PCI_SWAP_CASE_EMUL_ID, device);
+
+	/* First test I/O */
+	io_addr = dm_pci_read_bar32(swap, 0);
+	outb(2, io_addr);
+	ut_asserteq(2, inb(io_addr));
+
+	/*
+	 * Now test memory mapping - note we must unmap and remap to cause
+	 * the swapcase emulation to see our data and response.
+	 */
+	mem_addr = dm_pci_read_bar32(swap, 1);
+	ptr = map_sysmem(mem_addr, 30);
+	strcpy(ptr, "This is a TesT oN sTATIc");
+	unmap_sysmem(ptr);
+
+	ptr = map_sysmem(mem_addr, 30);
+	ut_asserteq_str("tHIS IS A tESt On StatiC", ptr);
+	unmap_sysmem(ptr);
+
+	return 0;
+}
+DM_TEST(dm_test_pci_mixed, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
+
+/* Test looking up PCI capability and extended capability */
+static int dm_test_pci_cap(struct unit_test_state *uts)
+{
+	struct udevice *bus, *swap;
+	int cap;
+
+	ut_assertok(uclass_get_device_by_seq(UCLASS_PCI, 0, &bus));
+	ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(0, 0x1f, 0), &swap));
+
+	/* look up PCI_CAP_ID_EXP */
+	cap = dm_pci_find_capability(swap, PCI_CAP_ID_EXP);
+	ut_asserteq(PCI_CAP_ID_EXP_OFFSET, cap);
+
+	/* look up PCI_CAP_ID_PCIX */
+	cap = dm_pci_find_capability(swap, PCI_CAP_ID_PCIX);
+	ut_asserteq(0, cap);
+
+	/* look up PCI_CAP_ID_MSIX starting from PCI_CAP_ID_PM_OFFSET */
+	cap = dm_pci_find_next_capability(swap, PCI_CAP_ID_PM_OFFSET,
+					  PCI_CAP_ID_MSIX);
+	ut_asserteq(PCI_CAP_ID_MSIX_OFFSET, cap);
+
+	/* look up PCI_CAP_ID_VNDR starting from PCI_CAP_ID_EXP_OFFSET */
+	cap = dm_pci_find_next_capability(swap, PCI_CAP_ID_EXP_OFFSET,
+					  PCI_CAP_ID_VNDR);
+	ut_asserteq(0, cap);
+
+	ut_assertok(uclass_get_device_by_seq(UCLASS_PCI, 1, &bus));
+	ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(1, 0x08, 0), &swap));
+
+	/* look up PCI_EXT_CAP_ID_DSN */
+	cap = dm_pci_find_ext_capability(swap, PCI_EXT_CAP_ID_DSN);
+	ut_asserteq(PCI_EXT_CAP_ID_DSN_OFFSET, cap);
+
+	/* look up PCI_EXT_CAP_ID_SRIOV */
+	cap = dm_pci_find_ext_capability(swap, PCI_EXT_CAP_ID_SRIOV);
+	ut_asserteq(0, cap);
+
+	/* look up PCI_EXT_CAP_ID_DSN starting from PCI_EXT_CAP_ID_ERR_OFFSET */
+	cap = dm_pci_find_next_ext_capability(swap, PCI_EXT_CAP_ID_ERR_OFFSET,
+					      PCI_EXT_CAP_ID_DSN);
+	ut_asserteq(PCI_EXT_CAP_ID_DSN_OFFSET, cap);
+
+	/* look up PCI_EXT_CAP_ID_RCRB starting from PCI_EXT_CAP_ID_VC_OFFSET */
+	cap = dm_pci_find_next_ext_capability(swap, PCI_EXT_CAP_ID_VC_OFFSET,
+					      PCI_EXT_CAP_ID_RCRB);
+	ut_asserteq(0, cap);
+
+	return 0;
+}
+DM_TEST(dm_test_pci_cap, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
+
+/* Test looking up BARs in EA capability structure */
+static int dm_test_pci_ea(struct unit_test_state *uts)
+{
+	struct udevice *bus, *swap;
+	void *bar;
+	int cap;
+
+	/*
+	 * use emulated device mapping function, we're not using real physical
+	 * addresses in this test
+	 */
+	sandbox_set_enable_pci_map(true);
+
+	ut_assertok(uclass_get_device_by_seq(UCLASS_PCI, 0, &bus));
+	ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(0, 0x01, 0), &swap));
+
+	/* look up PCI_CAP_ID_EA */
+	cap = dm_pci_find_capability(swap, PCI_CAP_ID_EA);
+	ut_asserteq(PCI_CAP_ID_EA_OFFSET, cap);
+
+	/* test swap case in BAR 1 */
+	bar = dm_pci_map_bar(swap, PCI_BASE_ADDRESS_0, 0);
+	ut_assertnonnull(bar);
+	*(int *)bar = 2; /* swap upper/lower */
+
+	bar = dm_pci_map_bar(swap, PCI_BASE_ADDRESS_1, 0);
+	ut_assertnonnull(bar);
+	strcpy(bar, "ea TEST");
+	unmap_sysmem(bar);
+	bar = dm_pci_map_bar(swap, PCI_BASE_ADDRESS_1, 0);
+	ut_assertnonnull(bar);
+	ut_asserteq_str("EA test", bar);
+
+	/* test magic values in BARs2, 4;  BAR 3 is n/a */
+	bar = dm_pci_map_bar(swap, PCI_BASE_ADDRESS_2, 0);
+	ut_assertnonnull(bar);
+	ut_asserteq(PCI_EA_BAR2_MAGIC, *(u32 *)bar);
+
+	bar = dm_pci_map_bar(swap, PCI_BASE_ADDRESS_3, 0);
+	ut_assertnull(bar);
+
+	bar = dm_pci_map_bar(swap, PCI_BASE_ADDRESS_4, 0);
+	ut_assertnonnull(bar);
+	ut_asserteq(PCI_EA_BAR4_MAGIC, *(u32 *)bar);
+
+	return 0;
+}
+DM_TEST(dm_test_pci_ea, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
+
+/* Test the dev_read_addr_pci() function */
+static int dm_test_pci_addr_flat(struct unit_test_state *uts)
+{
+	struct udevice *swap1f, *swap1;
+	ulong io_addr, mem_addr;
+
+	ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(0, 0x1f, 0), &swap1f));
+	io_addr = dm_pci_read_bar32(swap1f, 0);
+	ut_asserteq(io_addr, dev_read_addr_pci(swap1f));
+
+	/*
+	 * This device has both I/O and MEM spaces but the MEM space appears
+	 * first
+	 */
+	ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(0, 0x1, 0), &swap1));
+	mem_addr = dm_pci_read_bar32(swap1, 1);
+	ut_asserteq(mem_addr, dev_read_addr_pci(swap1));
+
+	return 0;
+}
+DM_TEST(dm_test_pci_addr_flat, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT |
+		UT_TESTF_FLAT_TREE);
+
+/*
+ * Test the dev_read_addr_pci() function with livetree. That function is
+ * not currently fully implemented, in that it fails to return the BAR address.
+ * Once that is implemented this test can be removed and dm_test_pci_addr_flat()
+ * can be used for both flattree and livetree by removing the UT_TESTF_FLAT_TREE
+ * flag above.
+ */
+static int dm_test_pci_addr_live(struct unit_test_state *uts)
+{
+	struct udevice *swap1f, *swap1;
+
+	ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(0, 0x1f, 0), &swap1f));
+	ut_asserteq(FDT_ADDR_T_NONE, dev_read_addr_pci(swap1f));
+
+	ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(0, 0x1, 0), &swap1));
+	ut_asserteq(FDT_ADDR_T_NONE, dev_read_addr_pci(swap1));
+
+	return 0;
+}
+DM_TEST(dm_test_pci_addr_live, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT |
+		UT_TESTF_LIVE_TREE);
+
+/* Test device_is_on_pci_bus() */
+static int dm_test_pci_on_bus(struct unit_test_state *uts)
+{
+	struct udevice *dev;
+
+	ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(0, 0x1f, 0), &dev));
+	ut_asserteq(true, device_is_on_pci_bus(dev));
+	ut_asserteq(false, device_is_on_pci_bus(dev_get_parent(dev)));
+	ut_asserteq(true, device_is_on_pci_bus(dev));
+
+	return 0;
+}
+DM_TEST(dm_test_pci_on_bus, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
+
+/*
+ * Test support for multiple memory regions enabled via
+ * CONFIG_PCI_REGION_MULTI_ENTRY. When this feature is not enabled,
+ * only the last region of one type is stored. In this test-case,
+ * we have 2 memory regions, the first at 0x3000.0000 and the 2nd
+ * at 0x3100.0000. A correct test results now in BAR1 located at
+ * 0x3000.0000.
+ */
+static int dm_test_pci_region_multi(struct unit_test_state *uts)
+{
+	struct udevice *dev;
+	ulong mem_addr;
+
+	/* Test memory BAR1 on bus#1 */
+	ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(1, 0x08, 0), &dev));
+	mem_addr = dm_pci_read_bar32(dev, 1);
+	ut_asserteq(mem_addr, 0x30000000);
+
+	return 0;
+}
+DM_TEST(dm_test_pci_region_multi, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);