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Diffstat (limited to 'post/cpu/load.c')
| -rw-r--r-- | post/cpu/load.c | 255 |
1 files changed, 0 insertions, 255 deletions
diff --git a/post/cpu/load.c b/post/cpu/load.c deleted file mode 100644 index 393c568..0000000 --- a/post/cpu/load.c +++ /dev/null @@ -1,255 +0,0 @@ -/* - * (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 instructions: lbz(x)(u), lhz(x)(u), lha(x)(u), lwz(x)(u) - * - * All operations are performed on a 16-byte array. The array - * is 4-byte aligned. The base register points to offset 8. - * The immediate offset (index register) ranges in [-8 ... +7]. - * The test cases are composed so that they do not - * cause alignment exceptions. - * The test contains a pre-built table describing all test cases. - * The table entry contains: - * the instruction opcode, the array contents, the value of the index - * register and the expected value of the destination register. - * After executing the instruction, the test verifies the - * value of the destination register and the value of the base - * register (it must change for "load with update" instructions). - */ - -#ifdef CONFIG_POST - -#include <post.h> -#include "cpu_asm.h" - -#if CONFIG_POST & CFG_POST_CPU - -extern void cpu_post_exec_22w (ulong *code, ulong *op1, ulong op2, ulong *op3); -extern void cpu_post_exec_21w (ulong *code, ulong *op1, ulong *op2); - -static struct cpu_post_load_s -{ - ulong cmd; - uint width; - int update; - int index; - ulong offset; -} cpu_post_load_table[] = -{ - { - OP_LWZ, - 4, - 0, - 0, - 4 - }, - { - OP_LHA, - 3, - 0, - 0, - 2 - }, - { - OP_LHZ, - 2, - 0, - 0, - 2 - }, - { - OP_LBZ, - 1, - 0, - 0, - 1 - }, - { - OP_LWZU, - 4, - 1, - 0, - 4 - }, - { - OP_LHAU, - 3, - 1, - 0, - 2 - }, - { - OP_LHZU, - 2, - 1, - 0, - 2 - }, - { - OP_LBZU, - 1, - 1, - 0, - 1 - }, - { - OP_LWZX, - 4, - 0, - 1, - 4 - }, - { - OP_LHAX, - 3, - 0, - 1, - 2 - }, - { - OP_LHZX, - 2, - 0, - 1, - 2 - }, - { - OP_LBZX, - 1, - 0, - 1, - 1 - }, - { - OP_LWZUX, - 4, - 1, - 1, - 4 - }, - { - OP_LHAUX, - 3, - 1, - 1, - 2 - }, - { - OP_LHZUX, - 2, - 1, - 1, - 2 - }, - { - OP_LBZUX, - 1, - 1, - 1, - 1 - }, -}; -static unsigned int cpu_post_load_size = - sizeof (cpu_post_load_table) / sizeof (struct cpu_post_load_s); - -int cpu_post_test_load (void) -{ - int ret = 0; - unsigned int i; - - for (i = 0; i < cpu_post_load_size && ret == 0; i++) - { - struct cpu_post_load_s *test = cpu_post_load_table + i; - uchar data[16] = - { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 }; - ulong base0 = (ulong) (data + 8); - ulong base = base0; - ulong value; - - if (test->index) - { - ulong code[] = - { - ASM_12(test->cmd, 5, 3, 4), - ASM_BLR, - }; - - cpu_post_exec_22w (code, &base, test->offset, &value); - } - else - { - ulong code[] = - { - ASM_11I(test->cmd, 4, 3, test->offset), - ASM_BLR, - }; - - cpu_post_exec_21w (code, &base, &value); - } - - if (ret == 0) - { - if (test->update) - ret = base == base0 + test->offset ? 0 : -1; - else - ret = base == base0 ? 0 : -1; - } - - if (ret == 0) - { - switch (test->width) - { - case 1: - ret = *(uchar *)(base0 + test->offset) == value ? - 0 : -1; - break; - case 2: - ret = *(ushort *)(base0 + test->offset) == value ? - 0 : -1; - break; - case 3: - ret = *(short *)(base0 + test->offset) == value ? - 0 : -1; - break; - case 4: - ret = *(ulong *)(base0 + test->offset) == value ? - 0 : -1; - break; - } - } - - if (ret != 0) - { - post_log ("Error at load test %d !\n", i); - } - } - - return ret; -} - -#endif -#endif |