| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2008-2009 Freescale Semiconductor, Inc. |
| 3 | * |
| 4 | * SPDX-License-Identifier: GPL-2.0+ |
| 5 | */ |
| 6 | |
| 7 | #include <common.h> |
| 8 | #include <command.h> |
| 9 | |
| 10 | static int |
| 11 | cpu_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
| 12 | { |
| 13 | unsigned long cpuid; |
| 14 | |
| 15 | if (argc < 3) |
| 16 | return CMD_RET_USAGE; |
| 17 | |
| 18 | cpuid = simple_strtoul(argv[1], NULL, 10); |
| 19 | if (!is_core_valid(cpuid)) { |
| 20 | printf ("Core num: %lu is not valid\n", cpuid); |
| 21 | return 1; |
| 22 | } |
| 23 | |
| 24 | |
| 25 | if (argc == 3) { |
| 26 | if (strncmp(argv[2], "reset", 5) == 0) |
| 27 | cpu_reset(cpuid); |
| 28 | else if (strncmp(argv[2], "status", 6) == 0) |
| 29 | cpu_status(cpuid); |
| 30 | else if (strncmp(argv[2], "disable", 7) == 0) |
| 31 | return cpu_disable(cpuid); |
| 32 | else |
| 33 | return CMD_RET_USAGE; |
| 34 | |
| 35 | return 0; |
| 36 | } |
| 37 | |
| 38 | /* 4 or greater, make sure its release */ |
| 39 | if (strncmp(argv[2], "release", 7) != 0) |
| 40 | return CMD_RET_USAGE; |
| 41 | |
| 42 | if (cpu_release(cpuid, argc - 3, argv + 3)) |
| 43 | return CMD_RET_USAGE; |
| 44 | |
| 45 | return 0; |
| 46 | } |
| 47 | |
| 48 | #ifdef CONFIG_SYS_LONGHELP |
| 49 | static char cpu_help_text[] = |
| 50 | "<num> reset - Reset cpu <num>\n" |
| 51 | "cpu <num> status - Status of cpu <num>\n" |
| 52 | "cpu <num> disable - Disable cpu <num>\n" |
| 53 | "cpu <num> release <addr> [args] - Release cpu <num> at <addr> with [args]" |
| 54 | #ifdef CONFIG_PPC |
| 55 | "\n" |
| 56 | " [args] : <pir> <r3> <r6>\n" \ |
| 57 | " pir - processor id (if writeable)\n" \ |
| 58 | " r3 - value for gpr 3\n" \ |
| 59 | " r6 - value for gpr 6\n" \ |
| 60 | "\n" \ |
| 61 | " Use '-' for any arg if you want the default value.\n" \ |
| 62 | " Default for r3 is <num> and r6 is 0\n" \ |
| 63 | "\n" \ |
| 64 | " When cpu <num> is released r4 and r5 = 0.\n" \ |
| 65 | " r7 will contain the size of the initial mapped area" |
| 66 | #endif |
| 67 | ""; |
| 68 | #endif |
| 69 | |
| 70 | U_BOOT_CMD( |
| 71 | cpu, CONFIG_SYS_MAXARGS, 1, cpu_cmd, |
| 72 | "Multiprocessor CPU boot manipulation and release", cpu_help_text |
| 73 | ); |