1 // SPDX-License-Identifier: GPL-2.0+
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
13 * Load/store multiple word instructions: lmw, stmw
15 * 27 consecutive words are loaded from a source memory buffer
16 * into GPRs r5 through r31. After that, 27 consecutive words are stored
17 * from the GPRs r5 through r31 into a target memory buffer. The contents
18 * of the source and target buffers are then compared.
24 #if CFG_POST & CFG_SYS_POST_CPU
26 extern void cpu_post_exec_02(ulong *code, ulong op1, ulong op2);
28 int cpu_post_test_multi(void)
32 ulong src[27], dst[27];
33 int flag = disable_interrupts();
36 ASM_LMW(5, 3, 0), /* lmw r5, 0(r3) */
37 ASM_STMW(5, 4, 0), /* stmr r5, 0(r4) */
41 for (i = 0; i < ARRAY_SIZE(src); ++i) {
46 cpu_post_exec_02(code, (ulong) src, (ulong) dst);
48 ret = memcmp(src, dst, sizeof(dst)) == 0 ? 0 : -1;
51 post_log("Error at multi test !\n");