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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Copyright 2020 NXP
- */
- #include <common.h>
- #include <dm.h>
- #include <dm/of_extra.h>
- #include <dm/test.h>
- #include <test/ut.h>
- DECLARE_GLOBAL_DATA_PTR;
- static int dm_test_fdtdec_set_carveout(struct unit_test_state *uts)
- {
- struct fdt_memory resv;
- void *blob;
- const fdt32_t *prop;
- int blob_sz, len, offset;
- blob_sz = fdt_totalsize(gd->fdt_blob) + 4096;
- 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));
- resv.start = 0x1000;
- resv.end = 0x2000;
- ut_assertok(fdtdec_set_carveout(blob, "/a-test",
- "memory-region", 2, "test_resv1",
- &resv));
- resv.start = 0x10000;
- resv.end = 0x20000;
- ut_assertok(fdtdec_set_carveout(blob, "/a-test",
- "memory-region", 1, "test_resv2",
- &resv));
- resv.start = 0x100000;
- resv.end = 0x200000;
- ut_assertok(fdtdec_set_carveout(blob, "/a-test",
- "memory-region", 0, "test_resv3",
- &resv));
- offset = fdt_path_offset(blob, "/a-test");
- ut_assert(offset > 0);
- prop = fdt_getprop(blob, offset, "memory-region", &len);
- ut_assertnonnull(prop);
- ut_asserteq(len, 12);
- ut_assert(fdt_node_offset_by_phandle(blob, fdt32_to_cpu(prop[0])) > 0);
- ut_assert(fdt_node_offset_by_phandle(blob, fdt32_to_cpu(prop[1])) > 0);
- ut_assert(fdt_node_offset_by_phandle(blob, fdt32_to_cpu(prop[2])) > 0);
- free(blob);
- return 0;
- }
- 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);
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