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57 lines
1.1 KiB
57 lines
1.1 KiB
// SPDX-License-Identifier: GPL-2.0+ |
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/* |
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* (C) Copyright 2002 |
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* Wolfgang Denk, DENX Software Engineering, [email protected]. |
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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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