part: Add a function to find the first bootable partition

If a disk has a bootable partition we are expected to use it to locate the
boot files. Add a function to find it.

To test this, update mmc1 to have two paritions, fixing up other tests
accordingly.

Signed-off-by: Simon Glass <sjg@chromium.org>

1 files changed, 13 insertions, 0 deletions

diff --git a/test/dm/part.c b/test/dm/part.c
index b60687114f1..35e99eeb01a 100644
--- a/test/dm/part.c
+++ b/test/dm/part.c
@@ -93,3 +93,16 @@ static int dm_test_part(struct unit_test_state *uts)
 	return ret;
 }
 DM_TEST(dm_test_part, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
+
+static int dm_test_part_bootable(struct unit_test_state *uts)
+{
+	struct blk_desc *desc;
+	struct udevice *dev;
+
+	ut_assertok(uclass_get_device_by_name(UCLASS_BLK, "mmc1.blk", &dev));
+	desc = dev_get_uclass_plat(dev);
+	ut_asserteq(1, part_get_bootable(desc));
+
+	return 0;
+}
+DM_TEST(dm_test_part_bootable, UT_TESTF_SCAN_FDT);