/* * (C) Copyright 2002 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * 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> /* * CPU test * Load/store string instructions: lswi, stswi, lswx, stswx * * Several consecutive bytes from a source memory buffer are loaded * left to right into GPRs. After that, the bytes are stored * from the GPRs into a target memory buffer. The contents * of the source and target buffers are then compared. */ #include <post.h> #include "cpu_asm.h" #if CONFIG_POST & CONFIG_SYS_POST_CPU extern void cpu_post_exec_02 (ulong *code, ulong op1, ulong op2); extern void cpu_post_exec_04 (ulong *code, ulong op1, ulong op2, ulong op3, ulong op4); #include <bedbug/regs.h> int cpu_post_test_string (void) { int ret = 0; unsigned int i; int flag = disable_interrupts(); if (ret == 0) { char src [31], dst [31]; ulong code[] = { ASM_LSWI(5, 3, 31), ASM_STSWI(5, 4, 31), ASM_BLR, }; for (i = 0; i < sizeof(src); i ++) { src[i] = (char) i; dst[i] = 0; } cpu_post_exec_02(code, (ulong)src, (ulong)dst); ret = memcmp(src, dst, sizeof(dst)) == 0 ? 0 : -1; } if (ret == 0) { char src [95], dst [95]; ulong code[] = { ASM_LSWX(8, 3, 5), ASM_STSWX(8, 4, 5), ASM_BLR, }; for (i = 0; i < sizeof(src); i ++) { src[i] = (char) i; dst[i] = 0; } cpu_post_exec_04(code, (ulong)src, (ulong)dst, 0, sizeof(src)); ret = memcmp(src, dst, sizeof(dst)) == 0 ? 0 : -1; } if (ret != 0) { post_log ("Error at string test !\n"); } if (flag) enable_interrupts(); return ret; } #endif