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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
     *
    
     * 27 consecutive words are loaded from a source memory buffer
     * into GPRs r5 through r31. After that, 27 consecutive words are stored
     * from the GPRs r5 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;
    
    	ulong src[27], dst[27];
    
    	int flag = disable_interrupts();
    
    	ulong code[] = {
    		ASM_LMW(5, 3, 0),	/* lmw	r5, 0(r3)	*/
    		ASM_STMW(5, 4, 0),	/* stmr	r5, 0(r4)	*/
    		ASM_BLR,		/* blr			*/
    	};
    
    	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");
    
    	if (flag)
    		enable_interrupts();
    
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