From: Bin Meng bin.meng@windriver.com
This adds a test case to test the functionality of the fdtdec API fdtdec_add_reserved_memory().
Signed-off-by: Bin Meng bin.meng@windriver.com Reviewed-by: Simon Glass sjg@chromium.org ---
(no changes since v3)
Changes in v3: - correct typo in the comments, and some minor rewording
test/dm/fdtdec.c | 69 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 69 insertions(+)
diff --git a/test/dm/fdtdec.c b/test/dm/fdtdec.c index 999d712..56f6f4f 100644 --- a/test/dm/fdtdec.c +++ b/test/dm/fdtdec.c @@ -59,3 +59,72 @@ static int dm_test_fdtdec_set_carveout(struct unit_test_state *uts) } DM_TEST(dm_test_fdtdec_set_carveout, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT | DM_TESTF_FLAT_TREE); + +static int dm_test_fdtdec_add_reserved_memory(struct unit_test_state *uts) +{ + struct fdt_memory resv; + fdt_addr_t addr; + fdt_size_t size; + void *blob; + int blob_sz, parent, subnode; + uint32_t phandle, phandle1; + + blob_sz = fdt_totalsize(gd->fdt_blob) + 128; + blob = malloc(blob_sz); + ut_assertnonnull(blob); + + /* Make a writable copy of the fdt blob */ + ut_assertok(fdt_open_into(gd->fdt_blob, blob, blob_sz)); + + /* Insert a memory region in /reserved-memory node */ + resv.start = 0x1000; + resv.end = 0x1fff; + ut_assertok(fdtdec_add_reserved_memory(blob, "rsvd_region", + &resv, &phandle)); + + /* Test /reserve-memory and its subnode should exist */ + parent = fdt_path_offset(blob, "/reserved-memory"); + ut_assert(parent > 0); + subnode = fdt_path_offset(blob, "/reserved-memory/rsvd_region"); + ut_assert(subnode > 0); + + /* Test reg property of /reserved-memory/rsvd_region node */ + addr = fdtdec_get_addr_size_auto_parent(blob, parent, subnode, + "reg", 0, &size, false); + ut_assert(addr == resv.start); + ut_assert(size == resv.end - resv.start + 1); + + /* Insert another memory region in /reserved-memory node */ + subnode = fdt_path_offset(blob, "/reserved-memory/rsvd_region1"); + ut_assert(subnode < 0); + + resv.start = 0x2000; + resv.end = 0x2fff; + ut_assertok(fdtdec_add_reserved_memory(blob, "rsvd_region1", + &resv, &phandle1)); + subnode = fdt_path_offset(blob, "/reserved-memory/rsvd_region1"); + ut_assert(subnode > 0); + + /* phandles must be different */ + ut_assert(phandle != phandle1); + + /* + * Insert a 3rd memory region with the same addr/size as the 1st one, + * but a new node should not be inserted due to the same addr/size. + */ + resv.start = 0x1000; + resv.end = 0x1fff; + ut_assertok(fdtdec_add_reserved_memory(blob, "rsvd_region2", + &resv, &phandle1)); + subnode = fdt_path_offset(blob, "/reserved-memory/rsvd_region2"); + ut_assert(subnode < 0); + + /* phandle must be same as the 1st one */ + ut_assert(phandle == phandle1); + + free(blob); + + return 0; +} +DM_TEST(dm_test_fdtdec_add_reserved_memory, + DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT | DM_TESTF_FLAT_TREE);