1 /* 2 * (C) Copyright 2002 3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 4 * 5 * See file CREDITS for list of people who contributed to this 6 * project. 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License as 10 * published by the Free Software Foundation; either version 2 of 11 * the License, or (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 21 * MA 02111-1307 USA 22 */ 23 24 #include <common.h> 25 26 /* 27 * CPU test 28 * Load/store multiple word instructions: lmw, stmw 29 * 30 * 26 consecutive words are loaded from a source memory buffer 31 * into GPRs r6 through r31. After that, 26 consecutive words are stored 32 * from the GPRs r6 through r31 into a target memory buffer. The contents 33 * of the source and target buffers are then compared. 34 */ 35 36 #include <post.h> 37 #include "cpu_asm.h" 38 39 #if CONFIG_POST & CONFIG_SYS_POST_CPU 40 41 extern void cpu_post_exec_02 (ulong *code, ulong op1, ulong op2); 42 43 int cpu_post_test_multi (void) 44 { 45 int ret = 0; 46 unsigned int i; 47 int flag = disable_interrupts(); 48 49 if (ret == 0) 50 { 51 ulong src [26], dst [26]; 52 53 ulong code[] = 54 { 55 ASM_LMW(5, 3, 0), 56 ASM_STMW(5, 4, 0), 57 ASM_BLR, 58 }; 59 60 for (i = 0; i < sizeof(src) / sizeof(src[0]); i ++) 61 { 62 src[i] = i; 63 dst[i] = 0; 64 } 65 66 cpu_post_exec_02(code, (ulong)src, (ulong)dst); 67 68 ret = memcmp(src, dst, sizeof(dst)) == 0 ? 0 : -1; 69 } 70 71 if (ret != 0) 72 { 73 post_log ("Error at multi test !\n"); 74 } 75 76 if (flag) 77 enable_interrupts(); 78 79 return ret; 80 } 81 82 #endif 83