1*a47a12beSStefan Roese /* 2*a47a12beSStefan Roese * (C) Copyright 2002 3*a47a12beSStefan Roese * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 4*a47a12beSStefan Roese * 5*a47a12beSStefan Roese * See file CREDITS for list of people who contributed to this 6*a47a12beSStefan Roese * project. 7*a47a12beSStefan Roese * 8*a47a12beSStefan Roese * This program is free software; you can redistribute it and/or 9*a47a12beSStefan Roese * modify it under the terms of the GNU General Public License as 10*a47a12beSStefan Roese * published by the Free Software Foundation; either version 2 of 11*a47a12beSStefan Roese * the License, or (at your option) any later version. 12*a47a12beSStefan Roese * 13*a47a12beSStefan Roese * This program is distributed in the hope that it will be useful, 14*a47a12beSStefan Roese * but WITHOUT ANY WARRANTY; without even the implied warranty of 15*a47a12beSStefan Roese * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16*a47a12beSStefan Roese * GNU General Public License for more details. 17*a47a12beSStefan Roese * 18*a47a12beSStefan Roese * You should have received a copy of the GNU General Public License 19*a47a12beSStefan Roese * along with this program; if not, write to the Free Software 20*a47a12beSStefan Roese * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 21*a47a12beSStefan Roese * MA 02111-1307 USA 22*a47a12beSStefan Roese */ 23*a47a12beSStefan Roese 24*a47a12beSStefan Roese #include <common.h> 25*a47a12beSStefan Roese 26*a47a12beSStefan Roese /* 27*a47a12beSStefan Roese * CPU test 28*a47a12beSStefan Roese * Load/store string instructions: lswi, stswi, lswx, stswx 29*a47a12beSStefan Roese * 30*a47a12beSStefan Roese * Several consecutive bytes from a source memory buffer are loaded 31*a47a12beSStefan Roese * left to right into GPRs. After that, the bytes are stored 32*a47a12beSStefan Roese * from the GPRs into a target memory buffer. The contents 33*a47a12beSStefan Roese * of the source and target buffers are then compared. 34*a47a12beSStefan Roese */ 35*a47a12beSStefan Roese 36*a47a12beSStefan Roese #include <post.h> 37*a47a12beSStefan Roese #include "cpu_asm.h" 38*a47a12beSStefan Roese 39*a47a12beSStefan Roese #if CONFIG_POST & CONFIG_SYS_POST_CPU 40*a47a12beSStefan Roese 41*a47a12beSStefan Roese extern void cpu_post_exec_02 (ulong *code, ulong op1, ulong op2); 42*a47a12beSStefan Roese extern void cpu_post_exec_04 (ulong *code, ulong op1, ulong op2, ulong op3, 43*a47a12beSStefan Roese ulong op4); 44*a47a12beSStefan Roese 45*a47a12beSStefan Roese #include <bedbug/regs.h> 46*a47a12beSStefan Roese int cpu_post_test_string (void) 47*a47a12beSStefan Roese { 48*a47a12beSStefan Roese int ret = 0; 49*a47a12beSStefan Roese unsigned int i; 50*a47a12beSStefan Roese int flag = disable_interrupts(); 51*a47a12beSStefan Roese 52*a47a12beSStefan Roese if (ret == 0) 53*a47a12beSStefan Roese { 54*a47a12beSStefan Roese char src [31], dst [31]; 55*a47a12beSStefan Roese 56*a47a12beSStefan Roese ulong code[] = 57*a47a12beSStefan Roese { 58*a47a12beSStefan Roese ASM_LSWI(5, 3, 31), 59*a47a12beSStefan Roese ASM_STSWI(5, 4, 31), 60*a47a12beSStefan Roese ASM_BLR, 61*a47a12beSStefan Roese }; 62*a47a12beSStefan Roese 63*a47a12beSStefan Roese for (i = 0; i < sizeof(src); i ++) 64*a47a12beSStefan Roese { 65*a47a12beSStefan Roese src[i] = (char) i; 66*a47a12beSStefan Roese dst[i] = 0; 67*a47a12beSStefan Roese } 68*a47a12beSStefan Roese 69*a47a12beSStefan Roese cpu_post_exec_02(code, (ulong)src, (ulong)dst); 70*a47a12beSStefan Roese 71*a47a12beSStefan Roese ret = memcmp(src, dst, sizeof(dst)) == 0 ? 0 : -1; 72*a47a12beSStefan Roese } 73*a47a12beSStefan Roese 74*a47a12beSStefan Roese if (ret == 0) 75*a47a12beSStefan Roese { 76*a47a12beSStefan Roese char src [95], dst [95]; 77*a47a12beSStefan Roese 78*a47a12beSStefan Roese ulong code[] = 79*a47a12beSStefan Roese { 80*a47a12beSStefan Roese ASM_LSWX(8, 3, 5), 81*a47a12beSStefan Roese ASM_STSWX(8, 4, 5), 82*a47a12beSStefan Roese ASM_BLR, 83*a47a12beSStefan Roese }; 84*a47a12beSStefan Roese 85*a47a12beSStefan Roese for (i = 0; i < sizeof(src); i ++) 86*a47a12beSStefan Roese { 87*a47a12beSStefan Roese src[i] = (char) i; 88*a47a12beSStefan Roese dst[i] = 0; 89*a47a12beSStefan Roese } 90*a47a12beSStefan Roese 91*a47a12beSStefan Roese cpu_post_exec_04(code, (ulong)src, (ulong)dst, 0, sizeof(src)); 92*a47a12beSStefan Roese 93*a47a12beSStefan Roese ret = memcmp(src, dst, sizeof(dst)) == 0 ? 0 : -1; 94*a47a12beSStefan Roese } 95*a47a12beSStefan Roese 96*a47a12beSStefan Roese if (ret != 0) 97*a47a12beSStefan Roese { 98*a47a12beSStefan Roese post_log ("Error at string test !\n"); 99*a47a12beSStefan Roese } 100*a47a12beSStefan Roese 101*a47a12beSStefan Roese if (flag) 102*a47a12beSStefan Roese enable_interrupts(); 103*a47a12beSStefan Roese 104*a47a12beSStefan Roese return ret; 105*a47a12beSStefan Roese } 106*a47a12beSStefan Roese 107*a47a12beSStefan Roese #endif 108