Add 'fdt get addr' test which works as follows: - Create fuller FDT, map it to sysmem - Get address of various properties - Compare addresses calculated by UT and fdt command
This test is special in that it has to go through gruesome remapping scheme where the test calculates: - pointer offsets of the generated FDT root and the property being tested - map_sysmem() result of environment variable "fdtaddr" and the one set by the test matching address of property being tested - difference between the later and the former, to obtain offset of the DT property from start of DT The offsets must match in both the UT and the tested U-Boot, if they do not, the test fails. The test case can be triggered using: " ./u-boot -Dc 'ut fdt' " To dump the full output from commands used during test, add '-v' flag. Signed-off-by: Marek Vasut <[email protected]> --- Cc: Heinrich Schuchardt <[email protected]> Cc: Simon Glass <[email protected]> Cc: Tom Rini <[email protected]> --- test/cmd/fdt.c | 66 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 66 insertions(+) diff --git a/test/cmd/fdt.c b/test/cmd/fdt.c index fa95241c8f2..e829052bfd9 100644 --- a/test/cmd/fdt.c +++ b/test/cmd/fdt.c @@ -624,6 +624,72 @@ static int fdt_test_get_name(struct unit_test_state *uts) } FDT_TEST(fdt_test_get_name, UT_TESTF_CONSOLE_REC); +static int fdt_test_get_addr_common(struct unit_test_state *uts, char *fdt, + const char *path, const char *prop) +{ + unsigned int offset; + int path_offset; + void *prop_ptr; + int len = 0; + + ut_assert((path_offset = fdt_path_offset(fdt, path)) >= 0); + ut_assertnonnull(prop_ptr = (void *)fdt_getprop(fdt, path_offset, + prop, &len)); + offset = (char *)prop_ptr - fdt; + + ut_assertok(console_record_reset_enable()); + ut_assertok(run_commandf("fdt get addr pstr %s %s", path, prop)); + ut_asserteq((ulong)map_sysmem(env_get_hex("fdtaddr", 0x1234), 0), + (ulong)(map_sysmem(env_get_hex("pstr", 0x1234), 0) - offset)); + ut_assertok(ut_check_console_end(uts)); + + return 0; +} + +static int fdt_test_get_addr(struct unit_test_state *uts) +{ + char fdt[4096]; + ulong addr; + + ut_assertok(make_fuller_fdt(uts, fdt, sizeof(fdt))); + addr = map_to_sysmem(fdt); + set_working_fdt_addr(addr); + + /* Test getting address of root node / string property "compatible" */ + fdt_test_get_addr_common(uts, fdt, "/", "compatible"); + + /* Test getting address of node /test-node@1234 stringlist property "clock-names" */ + fdt_test_get_addr_common(uts, fdt, "/test-node@1234", "clock-names"); + fdt_test_get_addr_common(uts, fdt, "testnodealias", "clock-names"); + + /* Test getting address of node /test-node@1234 u32 property "clock-frequency" */ + fdt_test_get_addr_common(uts, fdt, "/test-node@1234", "clock-frequency"); + fdt_test_get_addr_common(uts, fdt, "testnodealias", "clock-frequency"); + + /* Test getting address of node /test-node@1234 empty property "u-boot,empty-property" */ + fdt_test_get_addr_common(uts, fdt, "/test-node@1234", "u-boot,empty-property"); + fdt_test_get_addr_common(uts, fdt, "testnodealias", "u-boot,empty-property"); + + /* Test getting address of node /test-node@1234 array property "regs" */ + fdt_test_get_addr_common(uts, fdt, "/test-node@1234", "regs"); + fdt_test_get_addr_common(uts, fdt, "testnodealias", "regs"); + + /* Test getting address of node /test-node@1234/subnode non-existent property "noprop" */ + ut_assertok(console_record_reset_enable()); + ut_asserteq(1, run_command("fdt get addr pnoprop /test-node@1234/subnode noprop", 1)); + ut_assert_nextline("libfdt fdt_getprop(): FDT_ERR_NOTFOUND"); + ut_assertok(ut_check_console_end(uts)); + + /* Test getting address of non-existent node /test-node@1234/nonode@1 property "noprop" */ + ut_assertok(console_record_reset_enable()); + ut_asserteq(1, run_command("fdt get addr pnonode /test-node@1234/nonode@1 noprop", 1)); + ut_assert_nextline("libfdt fdt_path_offset() returned FDT_ERR_NOTFOUND"); + ut_assertok(ut_check_console_end(uts)); + + return 0; +} +FDT_TEST(fdt_test_get_addr, UT_TESTF_CONSOLE_REC); + int do_ut_fdt(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { struct unit_test *tests = UNIT_TEST_SUITE_START(fdt_test); -- 2.39.2
