[PATCH v2 31/32] test: cmd: fdt: Test fdt apply
Marek Vasut
marek.vasut+renesas at mailbox.org
Thu Mar 2 04:08:44 CET 2023
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 at 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 at mailbox.org>
Reviewed-by: Simon Glass <sjg at chromium.org>
---
Cc: Heinrich Schuchardt <heinrich.schuchardt at canonical.com>
Cc: Simon Glass <sjg at chromium.org>
Cc: Tom Rini <trini at konsulko.com>
---
V2: Add RB from Simon
---
test/cmd/fdt.c | 152 +++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 152 insertions(+)
diff --git a/test/cmd/fdt.c b/test/cmd/fdt.c
index d320f1f7b79..99e6450bb10 100644
--- a/test/cmd/fdt.c
+++ b/test/cmd/fdt.c
@@ -1360,6 +1360,158 @@ 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 at 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 at 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 at 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 at 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);
--
2.39.2
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