/* * Copyright 2008 Freescale Semiconductor, Inc. * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ #include <common.h> #include <command.h> int cpu_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) { unsigned long cpuid; if (argc < 3) { printf ("Usage:\n%s\n", cmdtp->usage); return 1; } cpuid = simple_strtoul(argv[1], NULL, 10); if (cpuid >= CONFIG_NUM_CPUS) { printf ("Core num: %lu is out of range[0..%d]\n", cpuid, CONFIG_NUM_CPUS - 1); return 1; } if (argc == 3) { if (strncmp(argv[2], "reset", 5) == 0) { cpu_reset(cpuid); } else if (strncmp(argv[2], "status", 6) == 0) { cpu_status(cpuid); } else { printf ("Usage:\n%s\n", cmdtp->usage); return 1; } return 0; } /* 4 or greater, make sure its release */ if (strncmp(argv[2], "release", 7) != 0) { printf ("Usage:\n%s\n", cmdtp->usage); return 1; } if (cpu_release(cpuid, argc - 3, argv + 3)) { printf ("Usage:\n%s\n", cmdtp->usage); return 1; } return 0; } #ifdef CONFIG_PPC #define CPU_ARCH_HELP \ " [args] : <pir> <r3> <r6>\n" \ " pir - processor id (if writeable)\n" \ " r3 - value for gpr 3\n" \ " r6 - value for gpr 6\n" \ "\n" \ " Use '-' for any arg if you want the default value.\n" \ " Default for r3 is <num> and r6 is 0\n" \ "\n" \ " When cpu <num> is released r4 and r5 = 0.\n" \ " r7 will contain the size of the initial mapped area\n" #endif U_BOOT_CMD( cpu, CONFIG_SYS_MAXARGS, 1, cpu_cmd, "cpu - Multiprocessor CPU boot manipulation and release\n", "<num> reset - Reset cpu <num>\n" "cpu <num> status - Status of cpu <num>\n" "cpu <num> release <addr> [args] - Release cpu <num> at <addr> with [args]\n" #ifdef CPU_ARCH_HELP CPU_ARCH_HELP #endif );