| Wolfgang Denk | ad5bb45 | 2007-03-06 18:08:43 +0100 | [diff] [blame] | 1 | /* |
| 2 | * (C) Copyright 2002 |
| 3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
| 4 | * |
| 5 | * See file CREDITS for list of people who contributed to this |
| 6 | * project. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public License as |
| 10 | * published by the Free Software Foundation; either version 2 of |
| 11 | * the License, or (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 21 | * MA 02111-1307 USA |
| 22 | */ |
| 23 | |
| 24 | #include <common.h> |
| 25 | |
| 26 | /* |
| 27 | * CPU test |
| 28 | * Load/store string instructions: lswi, stswi, lswx, stswx |
| 29 | * |
| 30 | * Several consecutive bytes from a source memory buffer are loaded |
| 31 | * left to right into GPRs. After that, the bytes are stored |
| 32 | * from the GPRs into a target memory buffer. The contents |
| 33 | * of the source and target buffers are then compared. |
| 34 | */ |
| 35 | |
| 36 | #ifdef CONFIG_POST |
| 37 | |
| 38 | #include <post.h> |
| 39 | #include "cpu_asm.h" |
| 40 | |
| 41 | #if CONFIG_POST & CFG_POST_CPU |
| 42 | |
| 43 | extern void cpu_post_exec_02 (ulong *code, ulong op1, ulong op2); |
| 44 | extern void cpu_post_exec_04 (ulong *code, ulong op1, ulong op2, ulong op3, |
| 45 | ulong op4); |
| 46 | |
| 47 | #include <bedbug/regs.h> |
| 48 | int cpu_post_test_string (void) |
| 49 | { |
| 50 | int ret = 0; |
| 51 | unsigned int i; |
| 52 | |
| 53 | if (ret == 0) |
| 54 | { |
| 55 | char src [31], dst [31]; |
| 56 | |
| 57 | ulong code[] = |
| 58 | { |
| 59 | ASM_LSWI(5, 3, 31), |
| 60 | ASM_STSWI(5, 4, 31), |
| 61 | ASM_BLR, |
| 62 | }; |
| 63 | |
| 64 | for (i = 0; i < sizeof(src); i ++) |
| 65 | { |
| 66 | src[i] = (char) i; |
| 67 | dst[i] = 0; |
| 68 | } |
| 69 | |
| 70 | cpu_post_exec_02(code, (ulong)src, (ulong)dst); |
| 71 | |
| 72 | ret = memcmp(src, dst, sizeof(dst)) == 0 ? 0 : -1; |
| 73 | } |
| 74 | |
| 75 | if (ret == 0) |
| 76 | { |
| 77 | char src [95], dst [95]; |
| 78 | |
| 79 | ulong code[] = |
| 80 | { |
| 81 | ASM_LSWX(8, 3, 5), |
| 82 | ASM_STSWX(8, 4, 5), |
| 83 | ASM_BLR, |
| 84 | }; |
| 85 | |
| 86 | for (i = 0; i < sizeof(src); i ++) |
| 87 | { |
| 88 | src[i] = (char) i; |
| 89 | dst[i] = 0; |
| 90 | } |
| 91 | |
| 92 | cpu_post_exec_04(code, (ulong)src, (ulong)dst, 0, sizeof(src)); |
| 93 | |
| 94 | ret = memcmp(src, dst, sizeof(dst)) == 0 ? 0 : -1; |
| 95 | } |
| 96 | |
| 97 | if (ret != 0) |
| 98 | { |
| 99 | post_log ("Error at string test !\n"); |
| 100 | } |
| 101 | |
| 102 | return ret; |
| 103 | } |
| 104 | |
| 105 | #endif |
| 106 | #endif |