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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 | // SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 2016 Beniamino Galvani * * Author: Beniamino Galvani <b.galvani@gmail.com> * Author: Vyacheslav Bocharov <adeep@lexina.in> * Author: Neil Armstrong <narmstrong@baylibre.com> * Author: Alexey Romanov <avromanov@sberdevices.ru> */ #include <command.h> #include <env.h> #include <asm/arch/sm.h> #include <stdlib.h> #include <display_options.h> #include <vsprintf.h> static int do_sm_serial(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { ulong address; int ret; if (argc < 2) return CMD_RET_USAGE; address = simple_strtoul(argv[1], NULL, 0); ret = meson_sm_get_serial((void *)address, SM_SERIAL_SIZE); if (ret) return CMD_RET_FAILURE; return CMD_RET_SUCCESS; } #define MAX_REBOOT_REASONS 14 static const char *reboot_reasons[MAX_REBOOT_REASONS] = { [REBOOT_REASON_COLD] = "cold_boot", [REBOOT_REASON_NORMAL] = "normal", [REBOOT_REASON_RECOVERY] = "recovery", [REBOOT_REASON_UPDATE] = "update", [REBOOT_REASON_FASTBOOT] = "fastboot", [REBOOT_REASON_SUSPEND_OFF] = "suspend_off", [REBOOT_REASON_HIBERNATE] = "hibernate", [REBOOT_REASON_BOOTLOADER] = "bootloader", [REBOOT_REASON_SHUTDOWN_REBOOT] = "shutdown_reboot", [REBOOT_REASON_RPMBP] = "rpmbp", [REBOOT_REASON_CRASH_DUMP] = "crash_dump", [REBOOT_REASON_KERNEL_PANIC] = "kernel_panic", [REBOOT_REASON_WATCHDOG_REBOOT] = "watchdog_reboot", }; static int do_sm_reboot_reason(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { const char *reason_str; char *destarg = NULL; int reason; if (argc > 1) destarg = argv[1]; reason = meson_sm_get_reboot_reason(); if (reason < 0) return CMD_RET_FAILURE; if (reason >= MAX_REBOOT_REASONS || !reboot_reasons[reason]) reason_str = "unknown"; else reason_str = reboot_reasons[reason]; if (destarg) env_set(destarg, reason_str); else printf("reboot reason: %s (%x)\n", reason_str, reason); return CMD_RET_SUCCESS; } static int do_efuse_read(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { ulong address, offset, size; int ret; if (argc < 4) return CMD_RET_USAGE; offset = simple_strtoul(argv[1], NULL, 0); size = simple_strtoul(argv[2], NULL, 0); address = simple_strtoul(argv[3], NULL, 0); ret = meson_sm_read_efuse(offset, (void *)address, size); if (ret != size) return CMD_RET_FAILURE; return CMD_RET_SUCCESS; } static int do_efuse_write(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { ulong address, offset, size; int ret; if (argc < 4) return CMD_RET_USAGE; offset = simple_strtoul(argv[1], NULL, 0); size = simple_strtoul(argv[2], NULL, 0); address = simple_strtoul(argv[3], NULL, 0); ret = meson_sm_write_efuse(offset, (void *)address, size); if (ret != size) return CMD_RET_FAILURE; return CMD_RET_SUCCESS; } static int do_efuse_dump(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { ulong offset, size; u8 *buffer; int ret; if (argc != 3) return CMD_RET_USAGE; offset = simple_strtoul(argv[1], NULL, 0); size = simple_strtoul(argv[2], NULL, 0); buffer = malloc(size); if (!buffer) { pr_err("Failed to allocate %lu bytes\n", size); return CMD_RET_FAILURE; } ret = meson_sm_read_efuse(offset, (void *)buffer, size); if (ret != size) { ret = CMD_RET_FAILURE; goto free_buffer; } print_buffer(0, buffer, 1, size, 0); free_buffer: free(buffer); return ret; } static struct cmd_tbl cmd_sm_sub[] = { U_BOOT_CMD_MKENT(serial, 2, 1, do_sm_serial, "", ""), U_BOOT_CMD_MKENT(reboot_reason, 1, 1, do_sm_reboot_reason, "", ""), U_BOOT_CMD_MKENT(efuseread, 4, 1, do_efuse_read, "", ""), U_BOOT_CMD_MKENT(efusewrite, 4, 0, do_efuse_write, "", ""), U_BOOT_CMD_MKENT(efusedump, 3, 1, do_efuse_dump, "", ""), }; static int do_sm(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { struct cmd_tbl *c; if (argc < 2) return CMD_RET_USAGE; /* Strip off leading 'sm' command argument */ argc--; argv++; c = find_cmd_tbl(argv[0], &cmd_sm_sub[0], ARRAY_SIZE(cmd_sm_sub)); if (c) return c->cmd(cmdtp, flag, argc, argv); else return CMD_RET_USAGE; } U_BOOT_CMD( sm, 5, 0, do_sm, "Secure Monitor Control", "serial <address> - read chip unique id to memory address\n" "sm reboot_reason [name] - get reboot reason and store to environment\n" "sm efuseread <offset> <size> <address> - read efuse to memory address\n" "sm efusewrite <offset> <size> <address> - write into efuse from memory address\n" "sm efusedump <offset> <size> - dump efuse data range to console" ); |