Add 'fdt chosen' test which works as follows: - Create basic DT, map it to sysmem - Apply DTO which adds single property via fragment (without address spec) - Apply DTO which adds more properties (string, u32, empty) and a subnode, with phandle via frament@0 and thus tests /__symbols__ node - Apply DTO which modifies property of the previous DTO via phandle and thus tests the /__fixups__ node - Print modified DT, verify it contains updates from DTOs
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 marek.vasut+renesas@mailbox.org --- Cc: Heinrich Schuchardt heinrich.schuchardt@canonical.com Cc: Simon Glass sjg@chromium.org Cc: Tom Rini trini@konsulko.com --- test/cmd/fdt.c | 152 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 152 insertions(+)
diff --git a/test/cmd/fdt.c b/test/cmd/fdt.c index 721916b070d..02c13e2d9b9 100644 --- a/test/cmd/fdt.c +++ b/test/cmd/fdt.c @@ -1338,6 +1338,158 @@ static int fdt_test_chosen(struct unit_test_state *uts) } FDT_TEST(fdt_test_chosen, UT_TESTF_CONSOLE_REC);
+static int fdt_test_apply(struct unit_test_state *uts) +{ + char fdt[8192], fdto[8192]; + ulong addr, addro; + + /* Create base DT with __symbols__ node */ + ut_assertok(fdt_create(fdt, sizeof(fdt))); + ut_assertok(fdt_finish_reservemap(fdt)); + ut_assert(fdt_begin_node(fdt, "") >= 0); + ut_assert(fdt_begin_node(fdt, "__symbols__") >= 0); + ut_assertok(fdt_end_node(fdt)); + ut_assertok(fdt_end_node(fdt)); + ut_assertok(fdt_finish(fdt)); + fdt_shrink_to_minimum(fdt, 4096); /* Resize with 4096 extra bytes */ + addr = map_to_sysmem(fdt); + set_working_fdt_addr(addr); + + /* Create DTO which adds single property to root node / */ + ut_assertok(fdt_create(fdto, sizeof(fdto))); + ut_assertok(fdt_finish_reservemap(fdto)); + ut_assert(fdt_begin_node(fdto, "") >= 0); + ut_assert(fdt_begin_node(fdto, "fragment") >= 0); + ut_assertok(fdt_property_string(fdto, "target-path", "/")); + ut_assert(fdt_begin_node(fdto, "__overlay__") >= 0); + ut_assertok(fdt_property_string(fdto, "newstring", "newvalue")); + ut_assertok(fdt_end_node(fdto)); + ut_assertok(fdt_end_node(fdto)); + ut_assertok(fdt_finish(fdto)); + addro = map_to_sysmem(fdto); + + /* Test default DT print */ + ut_assertok(console_record_reset_enable()); + ut_assertok(run_commandf("fdt print /")); + ut_assert_nextline("/ {"); + ut_assert_nextline("\t__symbols__ {"); + ut_assert_nextline("\t};"); + ut_assert_nextline("};"); + ut_assertok(ut_check_console_end(uts)); + + /* Test simple DTO application */ + ut_assertok(console_record_reset_enable()); + ut_assertok(run_commandf("fdt apply 0x%08x", addro)); + ut_assertok(run_commandf("fdt print /")); + ut_assert_nextline("/ {"); + ut_assert_nextline("\tnewstring = "newvalue";"); + ut_assert_nextline("\t__symbols__ {"); + ut_assert_nextline("\t};"); + ut_assert_nextline("};"); + ut_assertok(ut_check_console_end(uts)); + + /* + * Create complex DTO which: + * - modifies newstring property in root node / + * - adds new properties to root node / + * - adds new subnode with properties to root node / + * - adds phandle to the subnode and therefore __symbols__ node + */ + ut_assertok(fdt_create(fdto, sizeof(fdto))); + ut_assertok(fdt_finish_reservemap(fdto)); + ut_assert(fdt_begin_node(fdto, "") >= 0); + ut_assertok(fdt_property_cell(fdto, "#address-cells", 1)); + ut_assertok(fdt_property_cell(fdto, "#size-cells", 0)); + + ut_assert(fdt_begin_node(fdto, "fragment@0") >= 0); + ut_assertok(fdt_property_string(fdto, "target-path", "/")); + ut_assert(fdt_begin_node(fdto, "__overlay__") >= 0); + ut_assertok(fdt_property_string(fdto, "newstring", "newervalue")); + ut_assertok(fdt_property_u32(fdto, "newu32", 0x12345678)); + ut_assertok(fdt_property(fdto, "empty-property", NULL, 0)); + ut_assert(fdt_begin_node(fdto, "subnode") >= 0); + ut_assertok(fdt_property_string(fdto, "subnewstring", "newervalue")); + ut_assertok(fdt_property_u32(fdto, "subnewu32", 0x12345678)); + ut_assertok(fdt_property(fdto, "subempty-property", NULL, 0)); + ut_assertok(fdt_property_u32(fdto, "phandle", 0x01)); + ut_assertok(fdt_end_node(fdto)); + ut_assertok(fdt_end_node(fdto)); + ut_assertok(fdt_end_node(fdto)); + + ut_assert(fdt_begin_node(fdto, "__symbols__") >= 0); + ut_assertok(fdt_property_string(fdto, "subnodephandle", "/fragment@0/__overlay__/subnode")); + ut_assertok(fdt_end_node(fdto)); + ut_assertok(fdt_finish(fdto)); + addro = map_to_sysmem(fdto); + + /* Test complex DTO application */ + ut_assertok(console_record_reset_enable()); + ut_assertok(run_commandf("fdt apply 0x%08x", addro)); + ut_assertok(run_commandf("fdt print /")); + ut_assert_nextline("/ {"); + ut_assert_nextline("\tempty-property;"); + ut_assert_nextline("\tnewu32 = <0x12345678>;"); + ut_assert_nextline("\tnewstring = "newervalue";"); + ut_assert_nextline("\tsubnode {"); + ut_assert_nextline("\t\tphandle = <0x00000001>;"); + ut_assert_nextline("\t\tsubempty-property;"); + ut_assert_nextline("\t\tsubnewu32 = <0x12345678>;"); + ut_assert_nextline("\t\tsubnewstring = "newervalue";"); + ut_assert_nextline("\t};"); + ut_assert_nextline("\t__symbols__ {"); + ut_assert_nextline("\t\tsubnodephandle = "/subnode";"); + ut_assert_nextline("\t};"); + ut_assert_nextline("};"); + ut_assertok(ut_check_console_end(uts)); + + /* + * Create complex DTO which: + * - modifies subnewu32 property in subnode via phandle and uses __fixups__ node + */ + ut_assertok(fdt_create(fdto, sizeof(fdto))); + ut_assertok(fdt_finish_reservemap(fdto)); + ut_assert(fdt_begin_node(fdto, "") >= 0); + ut_assertok(fdt_property_cell(fdto, "#address-cells", 1)); + ut_assertok(fdt_property_cell(fdto, "#size-cells", 0)); + + ut_assert(fdt_begin_node(fdto, "fragment@0") >= 0); + ut_assertok(fdt_property_u32(fdto, "target", 0xffffffff)); + ut_assert(fdt_begin_node(fdto, "__overlay__") >= 0); + ut_assertok(fdt_property_u32(fdto, "subnewu32", 0xabcdef01)); + ut_assertok(fdt_end_node(fdto)); + ut_assertok(fdt_end_node(fdto)); + + ut_assert(fdt_begin_node(fdto, "__fixups__") >= 0); + ut_assertok(fdt_property_string(fdto, "subnodephandle", "/fragment@0:target:0")); + ut_assertok(fdt_end_node(fdto)); + ut_assertok(fdt_end_node(fdto)); + ut_assertok(fdt_finish(fdto)); + addro = map_to_sysmem(fdto); + + /* Test complex DTO application */ + ut_assertok(console_record_reset_enable()); + ut_assertok(run_commandf("fdt apply 0x%08x", addro)); + ut_assertok(run_commandf("fdt print /")); + ut_assert_nextline("/ {"); + ut_assert_nextline("\tempty-property;"); + ut_assert_nextline("\tnewu32 = <0x12345678>;"); + ut_assert_nextline("\tnewstring = "newervalue";"); + ut_assert_nextline("\tsubnode {"); + ut_assert_nextline("\t\tphandle = <0x00000001>;"); + ut_assert_nextline("\t\tsubempty-property;"); + ut_assert_nextline("\t\tsubnewu32 = <0xabcdef01>;"); + ut_assert_nextline("\t\tsubnewstring = "newervalue";"); + ut_assert_nextline("\t};"); + ut_assert_nextline("\t__symbols__ {"); + ut_assert_nextline("\t\tsubnodephandle = "/subnode";"); + ut_assert_nextline("\t};"); + ut_assert_nextline("};"); + ut_assertok(ut_check_console_end(uts)); + + return 0; +} +FDT_TEST(fdt_test_apply, 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);