Maximilian Brune | 33079b8 | 2024-03-04 15:34:41 +0100 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| 2 | |
| 3 | #include <console/console.h> |
| 4 | #include <device_tree.h> |
| 5 | #include <helpers/file.h> |
| 6 | #include <stddef.h> |
| 7 | #include <stdint.h> |
| 8 | #include <stdio.h> |
| 9 | #include <stdlib.h> |
| 10 | #include <string.h> |
| 11 | #include <tests/test.h> |
| 12 | |
| 13 | static int setup_device_tree_test_group(void **state) |
| 14 | { |
| 15 | /* |
| 16 | * fattest FDT I could find from Linux Kernel to test the worst cases |
| 17 | * https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/arm/boot/dts/nvidia/tegra30-ouya.dts?id=443b349019f2d946 |
| 18 | */ |
| 19 | const char dtb_path[] = "lib/devicetree-test/tegra30-ouya.dtb"; |
| 20 | int file_size = test_get_file_size(dtb_path); |
| 21 | assert_int_not_equal(file_size, -1); |
| 22 | |
| 23 | void *big_fat_dtb = test_malloc(file_size); |
| 24 | assert_int_not_equal(big_fat_dtb, NULL); |
| 25 | assert_int_equal(test_read_file(dtb_path, big_fat_dtb, file_size), file_size); |
| 26 | *state = big_fat_dtb; |
| 27 | |
| 28 | return 0; |
| 29 | } |
| 30 | |
| 31 | static int teardown_device_tree_test_group(void **state) |
| 32 | { |
| 33 | test_free(*state); |
| 34 | return 0; |
| 35 | } |
| 36 | |
| 37 | static void test_fdt_find_node_by_path(void **state) |
| 38 | { |
| 39 | uint32_t addrcp, sizecp; |
| 40 | assert_int_equal(0, fdt_find_node_by_path(*state, "test", &addrcp, &sizecp)); |
| 41 | assert_int_equal(56, fdt_find_node_by_path(*state, "/", &addrcp, &sizecp)); |
| 42 | assert_int_equal(2, addrcp); |
| 43 | assert_int_equal(1, sizecp); |
| 44 | assert_int_equal(0, fdt_find_node_by_path(*state, "/test", &addrcp, &sizecp)); |
| 45 | assert_int_equal(0x181f4, fdt_find_node_by_path(*state, "/chosen", &addrcp, &sizecp)); |
| 46 | assert_int_equal(1, addrcp); |
| 47 | assert_int_equal(1, sizecp); |
| 48 | assert_int_equal(0x156d4, fdt_find_node_by_path(*state, "/cpus", &addrcp, &sizecp)); |
| 49 | assert_int_equal(1, addrcp); |
| 50 | assert_int_equal(1, sizecp); |
| 51 | assert_int_equal(0x1517c, fdt_find_node_by_path(*state, "/usb@7d004000/ethernet@2", &addrcp, &sizecp)); |
| 52 | assert_int_equal(1, addrcp); |
| 53 | assert_int_equal(0, sizecp); |
| 54 | assert_int_equal(0x1517c, fdt_find_node_by_path(*state, "/usb@7d004000/ethernet@2/", &addrcp, &sizecp)); |
| 55 | assert_int_equal(1, addrcp); |
| 56 | assert_int_equal(0, sizecp); |
| 57 | |
| 58 | assert_int_equal(0xee08, fdt_find_node_by_path(*state, "/pinmux@70000868/pinmux/drive_groups", |
| 59 | &addrcp, &sizecp)); |
| 60 | } |
| 61 | |
| 62 | static void test_fdt_find_subnodes_by_prefix(void **state) |
| 63 | { |
| 64 | uint32_t offset = fdt_find_node_by_path(*state, "/cpus", NULL, NULL); |
| 65 | uint32_t results[3] = { 0 }; |
| 66 | uint32_t addrcp, sizecp; |
| 67 | size_t count_results = fdt_find_subnodes_by_prefix(*state, offset, "cpu@", |
| 68 | &addrcp, &sizecp, results, 3); |
| 69 | assert_int_equal(3, count_results); |
| 70 | assert_int_equal(0x15700, results[0]); |
| 71 | assert_int_equal(0x157a0, results[1]); |
| 72 | assert_int_equal(0x15840, results[2]); |
| 73 | |
| 74 | results[1] = 0xDEADBEEF; |
| 75 | results[2] = 0xDEADBEEF; |
| 76 | count_results = fdt_find_subnodes_by_prefix(*state, offset, "cpu@", |
| 77 | &addrcp, &sizecp, results, 1); |
| 78 | assert_int_equal(1, count_results); |
| 79 | assert_int_equal(0x15700, results[0]); |
| 80 | assert_int_equal(0xDEADBEEF, results[1]); |
| 81 | assert_int_equal(0xDEADBEEF, results[2]); |
| 82 | } |
| 83 | |
| 84 | static void test_fdt_find_node_by_alias(void **state) |
| 85 | { |
| 86 | assert_int_equal(0xf298, fdt_find_node_by_alias(*state, "serial0", NULL, NULL)); |
| 87 | assert_int_equal(0, fdt_find_node_by_alias(*state, "mmc2", NULL, NULL)); |
| 88 | } |
| 89 | |
| 90 | static void test_fdt_find_prop_in_node(void **state) |
| 91 | { |
| 92 | uintptr_t cnode_offset = fdt_find_node_by_path(*state, "/clock", NULL, NULL); |
| 93 | uintptr_t mnode_offset = fdt_find_node_by_path(*state, "/memory@80000000", NULL, NULL); |
| 94 | assert_int_equal(0x18400, cnode_offset); |
| 95 | |
| 96 | struct fdt_property fdt_prop; |
| 97 | assert_int_equal(0x1840c, fdt_read_prop(*state, cnode_offset, "compatible", &fdt_prop)); |
| 98 | assert_string_equal("fixed-clock", (char *)fdt_prop.data); |
| 99 | assert_int_equal(0x6094, fdt_read_prop(*state, mnode_offset, "reg", &fdt_prop)); |
| 100 | assert_int_equal(0x0, fdt_read_prop(*state, cnode_offset, "notfound", &fdt_prop)); |
| 101 | } |
| 102 | |
| 103 | static void test_fdt_read_reg_prop(void **state) |
| 104 | { |
| 105 | uint32_t addrcp1, sizecp1, addrcp2, sizecp2; |
| 106 | uint64_t node_offset1 = fdt_find_node_by_path(*state, "/memory@80000000", &addrcp1, &sizecp1); |
| 107 | uint64_t node_offset2 = fdt_find_node_by_path(*state, "/reserved-memory/ramoops@bfdf0000", &addrcp2, &sizecp2); |
| 108 | |
| 109 | struct device_tree_region regions[3]; |
| 110 | regions[0].addr = 0xDEADBEEF; |
| 111 | regions[0].size = 0xDEADBEEF; |
| 112 | fdt_read_reg_prop(*state, node_offset1, addrcp1, sizecp1, regions, 0); |
| 113 | assert_int_equal(0xDEADBEEF, regions[0].addr); |
| 114 | assert_int_equal(0xDEADBEEF, regions[0].size); |
| 115 | fdt_read_reg_prop(*state, node_offset2, addrcp2, sizecp2, regions, 1); |
| 116 | assert_int_equal(0xbfdf0000, regions[0].addr); |
| 117 | assert_int_equal(0x00010000, regions[0].size); |
| 118 | } |
| 119 | |
| 120 | int main(void) |
| 121 | { |
| 122 | const struct CMUnitTest tests[] = { |
| 123 | cmocka_unit_test(test_fdt_find_node_by_path), |
| 124 | cmocka_unit_test(test_fdt_find_subnodes_by_prefix), |
| 125 | cmocka_unit_test(test_fdt_find_node_by_alias), |
| 126 | cmocka_unit_test(test_fdt_find_prop_in_node), |
| 127 | cmocka_unit_test(test_fdt_read_reg_prop), |
| 128 | }; |
| 129 | |
| 130 | return cb_run_group_tests(tests, setup_device_tree_test_group, |
| 131 | teardown_device_tree_test_group); |
| 132 | } |