/*
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* (C) Copyright 2002
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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/*
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* CPU test
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* Load/store multiple word instructions: lmw, stmw
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*
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* 27 consecutive words are loaded from a source memory buffer
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* into GPRs r5 through r31. After that, 27 consecutive words are stored
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* from the GPRs r5 through r31 into a target memory buffer. The contents
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* of the source and target buffers are then compared.
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*/
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#include <post.h>
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#include "cpu_asm.h"
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#if CONFIG_POST & CONFIG_SYS_POST_CPU
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extern void cpu_post_exec_02(ulong *code, ulong op1, ulong op2);
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int cpu_post_test_multi(void)
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{
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int ret = 0;
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unsigned int i;
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ulong src[27], dst[27];
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int flag = disable_interrupts();
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ulong code[] = {
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ASM_LMW(5, 3, 0), /* lmw r5, 0(r3) */
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ASM_STMW(5, 4, 0), /* stmr r5, 0(r4) */
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ASM_BLR, /* blr */
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};
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for (i = 0; i < ARRAY_SIZE(src); ++i) {
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src[i] = i;
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dst[i] = 0;
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}
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cpu_post_exec_02(code, (ulong) src, (ulong) dst);
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ret = memcmp(src, dst, sizeof(dst)) == 0 ? 0 : -1;
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if (ret != 0)
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post_log("Error at multi test !\n");
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if (flag)
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enable_interrupts();
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return ret;
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}
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#endif
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