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  • /*
     * (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 multiple word instructions:	lmw, stmw
     *
     * 26 consecutive words are loaded from a source memory buffer
     * into GPRs r6 through r31. After that, 26 consecutive words are stored
     * from the GPRs r6 through r31 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);
    
    int cpu_post_test_multi (void)
    {
        int ret = 0;
        unsigned int i;
    
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        int flag = disable_interrupts();
    
    
        if (ret == 0)
        {
    	ulong src [26], dst [26];
    
    	ulong code[] =
    	{
    	    ASM_LMW(5, 3, 0),
    	    ASM_STMW(5, 4, 0),
    	    ASM_BLR,
    	};
    
    
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    	for (i = 0; i < ARRAY_SIZE(src); ++i)
    
    	{
    	    src[i] = 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)
        {
    	post_log ("Error at multi test !\n");
        }
    
    
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        if (flag)
    	enable_interrupts();