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Diffstat (limited to 'tests/commonlib/device_tree-test.c')
| -rw-r--r-- | tests/commonlib/device_tree-test.c | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/tests/commonlib/device_tree-test.c b/tests/commonlib/device_tree-test.c new file mode 100644 index 0000000000..0c1e2dd8f3 --- /dev/null +++ b/tests/commonlib/device_tree-test.c @@ -0,0 +1,132 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <commonlib/device_tree.h> +#include <console/console.h> +#include <helpers/file.h> +#include <stddef.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <tests/test.h> + +static int setup_device_tree_test_group(void **state) +{ + /* + * fattest FDT I could find from Linux Kernel to test the worst cases + * https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/arm/boot/dts/nvidia/tegra30-ouya.dts?id=443b349019f2d946 + */ + const char dtb_path[] = "lib/devicetree-test/tegra30-ouya.dtb"; + int file_size = test_get_file_size(dtb_path); + assert_int_not_equal(file_size, -1); + + void *big_fat_dtb = test_malloc(file_size); + assert_int_not_equal(big_fat_dtb, NULL); + assert_int_equal(test_read_file(dtb_path, big_fat_dtb, file_size), file_size); + *state = big_fat_dtb; + + return 0; +} + +static int teardown_device_tree_test_group(void **state) +{ + test_free(*state); + return 0; +} + +static void test_fdt_find_node_by_path(void **state) +{ + uint32_t addrcp, sizecp; + assert_int_equal(0, fdt_find_node_by_path(*state, "test", &addrcp, &sizecp)); + assert_int_equal(56, fdt_find_node_by_path(*state, "/", &addrcp, &sizecp)); + assert_int_equal(2, addrcp); + assert_int_equal(1, sizecp); + assert_int_equal(0, fdt_find_node_by_path(*state, "/test", &addrcp, &sizecp)); + assert_int_equal(0x181f4, fdt_find_node_by_path(*state, "/chosen", &addrcp, &sizecp)); + assert_int_equal(1, addrcp); + assert_int_equal(1, sizecp); + assert_int_equal(0x156d4, fdt_find_node_by_path(*state, "/cpus", &addrcp, &sizecp)); + assert_int_equal(1, addrcp); + assert_int_equal(1, sizecp); + assert_int_equal(0x1517c, fdt_find_node_by_path(*state, "/usb@7d004000/ethernet@2", &addrcp, &sizecp)); + assert_int_equal(1, addrcp); + assert_int_equal(0, sizecp); + assert_int_equal(0x1517c, fdt_find_node_by_path(*state, "/usb@7d004000/ethernet@2/", &addrcp, &sizecp)); + assert_int_equal(1, addrcp); + assert_int_equal(0, sizecp); + + assert_int_equal(0xee08, fdt_find_node_by_path(*state, "/pinmux@70000868/pinmux/drive_groups", + &addrcp, &sizecp)); +} + +static void test_fdt_find_subnodes_by_prefix(void **state) +{ + uint32_t offset = fdt_find_node_by_path(*state, "/cpus", NULL, NULL); + uint32_t results[3] = { 0 }; + uint32_t addrcp, sizecp; + size_t count_results = fdt_find_subnodes_by_prefix(*state, offset, "cpu@", + &addrcp, &sizecp, results, 3); + assert_int_equal(3, count_results); + assert_int_equal(0x15700, results[0]); + assert_int_equal(0x157a0, results[1]); + assert_int_equal(0x15840, results[2]); + + results[1] = 0xDEADBEEF; + results[2] = 0xDEADBEEF; + count_results = fdt_find_subnodes_by_prefix(*state, offset, "cpu@", + &addrcp, &sizecp, results, 1); + assert_int_equal(1, count_results); + assert_int_equal(0x15700, results[0]); + assert_int_equal(0xDEADBEEF, results[1]); + assert_int_equal(0xDEADBEEF, results[2]); +} + +static void test_fdt_find_node_by_alias(void **state) +{ + assert_int_equal(0xf298, fdt_find_node_by_alias(*state, "serial0", NULL, NULL)); + assert_int_equal(0, fdt_find_node_by_alias(*state, "mmc2", NULL, NULL)); +} + +static void test_fdt_find_prop_in_node(void **state) +{ + uintptr_t cnode_offset = fdt_find_node_by_path(*state, "/clock", NULL, NULL); + uintptr_t mnode_offset = fdt_find_node_by_path(*state, "/memory@80000000", NULL, NULL); + assert_int_equal(0x18400, cnode_offset); + + struct fdt_property fdt_prop; + assert_int_equal(0x1840c, fdt_read_prop(*state, cnode_offset, "compatible", &fdt_prop)); + assert_string_equal("fixed-clock", (char *)fdt_prop.data); + assert_int_equal(0x6094, fdt_read_prop(*state, mnode_offset, "reg", &fdt_prop)); + assert_int_equal(0x0, fdt_read_prop(*state, cnode_offset, "notfound", &fdt_prop)); +} + +static void test_fdt_read_reg_prop(void **state) +{ + uint32_t addrcp1, sizecp1, addrcp2, sizecp2; + uint64_t node_offset1 = fdt_find_node_by_path(*state, "/memory@80000000", &addrcp1, &sizecp1); + uint64_t node_offset2 = fdt_find_node_by_path(*state, "/reserved-memory/ramoops@bfdf0000", &addrcp2, &sizecp2); + + struct device_tree_region regions[3]; + regions[0].addr = 0xDEADBEEF; + regions[0].size = 0xDEADBEEF; + fdt_read_reg_prop(*state, node_offset1, addrcp1, sizecp1, regions, 0); + assert_int_equal(0xDEADBEEF, regions[0].addr); + assert_int_equal(0xDEADBEEF, regions[0].size); + fdt_read_reg_prop(*state, node_offset2, addrcp2, sizecp2, regions, 1); + assert_int_equal(0xbfdf0000, regions[0].addr); + assert_int_equal(0x00010000, regions[0].size); +} + +int main(void) +{ + const struct CMUnitTest tests[] = { + cmocka_unit_test(test_fdt_find_node_by_path), + cmocka_unit_test(test_fdt_find_subnodes_by_prefix), + cmocka_unit_test(test_fdt_find_node_by_alias), + cmocka_unit_test(test_fdt_find_prop_in_node), + cmocka_unit_test(test_fdt_read_reg_prop), + }; + + return cb_run_group_tests(tests, setup_device_tree_test_group, + teardown_device_tree_test_group); +} |