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test: dm: pci: Test more than one device on the same bus

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It's quite common to have more than one device on the same PCI bus.
This updates the test case to test such scenario.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Bin Meng 2018-08-03 01:14:39 -07:00 committed by Simon Glass
parent dd4808f9fa
commit 2db7f2b722
2 changed files with 40 additions and 4 deletions
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7
arch/sandbox/dts/test.dts
View File

@ -302,6 +302,13 @@
#size-cells = <2>;
ranges = <0x02000000 0 0x10000000 0x10000000 0 0x2000
0x01000000 0 0x20000000 0x20000000 0 0x2000>;
pci@0,0 {
compatible = "pci-generic";
reg = <0x0000 0 0 0 0>;
emul@0,0 {
compatible = "sandbox,swap-case";
};
};
pci@1f,0 {
compatible = "pci-generic";
reg = <0xf800 0 0 0 0>;

37
test/dm/pci.c
View File

@ -20,16 +20,24 @@ static int dm_test_pci_base(struct unit_test_state *uts)
}
DM_TEST(dm_test_pci_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
/* Test that sandbox PCI bus numbering works correctly */
static int dm_test_pci_busnum(struct unit_test_state *uts)
/* 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 *emul, *swap;
ut_assertok(uclass_get_device_by_seq(UCLASS_PCI, 0, &bus));
ut_assertok(uclass_get_device(UCLASS_PCI_EMUL, 0, &emul));
ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(0, 0x00, 0), &swap));
ut_assert(device_active(swap));
ut_assertok(uclass_get_device(UCLASS_PCI_EMUL, 1, &emul));
ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(0, 0x1f, 0), &swap));
ut_assert(device_active(swap));
return 0;
}
DM_TEST(dm_test_pci_busnum, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
DM_TEST(dm_test_pci_busdev, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
/* Test that we can use the swapcase device correctly */
static int dm_test_pci_swapcase(struct unit_test_state *uts)
@ -38,7 +46,28 @@ static int dm_test_pci_swapcase(struct unit_test_state *uts)
ulong io_addr, mem_addr;
char *ptr;
/* Check that asking for the device automatically fires up PCI */
/* 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 */