diff options
Diffstat (limited to 'post/cpu/cr.c')
| -rw-r--r-- | post/cpu/cr.c | 356 |
1 files changed, 0 insertions, 356 deletions
diff --git a/post/cpu/cr.c b/post/cpu/cr.c deleted file mode 100644 index da6ef37..0000000 --- a/post/cpu/cr.c +++ /dev/null @@ -1,356 +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 - * Condition register istructions: mtcr, mfcr, mcrxr, - * crand, crandc, cror, crorc, crxor, - * crnand, crnor, creqv, mcrf - * - * The mtcrf/mfcr instructions is tested by loading different - * values into the condition register (mtcrf), moving its value - * to a general-purpose register (mfcr) and comparing this value - * with the expected one. - * The mcrxr instruction is tested by loading a fixed value - * into the XER register (mtspr), moving XER value to the - * condition register (mcrxr), moving it to a general-purpose - * register (mfcr) and comparing the value of this register with - * the expected one. - * The rest of instructions is tested by loading a fixed - * value into the condition register (mtcrf), executing each - * instruction several times to modify all 4-bit condition - * fields, moving the value of the conditional register to a - * general-purpose register (mfcr) and comparing it with the - * expected one. - */ - -#ifdef CONFIG_POST - -#include <post.h> -#include "cpu_asm.h" - -#if CONFIG_POST & CFG_POST_CPU - -extern void cpu_post_exec_11 (ulong *code, ulong *res, ulong op1); -extern void cpu_post_exec_21x (ulong *code, ulong *op1, ulong *op2, ulong op3); - -static ulong cpu_post_cr_table1[] = -{ - 0xaaaaaaaa, - 0x55555555, -}; -static unsigned int cpu_post_cr_size1 = - sizeof (cpu_post_cr_table1) / sizeof (ulong); - -static struct cpu_post_cr_s2 { - ulong xer; - ulong cr; -} cpu_post_cr_table2[] = -{ - { - 0xa0000000, - 1 - }, - { - 0x40000000, - 5 - }, -}; -static unsigned int cpu_post_cr_size2 = - sizeof (cpu_post_cr_table2) / sizeof (struct cpu_post_cr_s2); - -static struct cpu_post_cr_s3 { - ulong cr; - ulong cs; - ulong cd; - ulong res; -} cpu_post_cr_table3[] = -{ - { - 0x01234567, - 0, - 4, - 0x01230567 - }, - { - 0x01234567, - 7, - 0, - 0x71234567 - }, -}; -static unsigned int cpu_post_cr_size3 = - sizeof (cpu_post_cr_table3) / sizeof (struct cpu_post_cr_s3); - -static struct cpu_post_cr_s4 { - ulong cmd; - ulong cr; - ulong op1; - ulong op2; - ulong op3; - ulong res; -} cpu_post_cr_table4[] = -{ - { - OP_CRAND, - 0x0000ffff, - 0, - 16, - 0, - 0x0000ffff - }, - { - OP_CRAND, - 0x0000ffff, - 16, - 17, - 0, - 0x8000ffff - }, - { - OP_CRANDC, - 0x0000ffff, - 0, - 16, - 0, - 0x0000ffff - }, - { - OP_CRANDC, - 0x0000ffff, - 16, - 0, - 0, - 0x8000ffff - }, - { - OP_CROR, - 0x0000ffff, - 0, - 16, - 0, - 0x8000ffff - }, - { - OP_CROR, - 0x0000ffff, - 0, - 1, - 0, - 0x0000ffff - }, - { - OP_CRORC, - 0x0000ffff, - 0, - 16, - 0, - 0x0000ffff - }, - { - OP_CRORC, - 0x0000ffff, - 0, - 0, - 0, - 0x8000ffff - }, - { - OP_CRXOR, - 0x0000ffff, - 0, - 0, - 0, - 0x0000ffff - }, - { - OP_CRXOR, - 0x0000ffff, - 0, - 16, - 0, - 0x8000ffff - }, - { - OP_CRNAND, - 0x0000ffff, - 0, - 16, - 0, - 0x8000ffff - }, - { - OP_CRNAND, - 0x0000ffff, - 16, - 17, - 0, - 0x0000ffff - }, - { - OP_CRNOR, - 0x0000ffff, - 0, - 16, - 0, - 0x0000ffff - }, - { - OP_CRNOR, - 0x0000ffff, - 0, - 1, - 0, - 0x8000ffff - }, - { - OP_CREQV, - 0x0000ffff, - 0, - 0, - 0, - 0x8000ffff - }, - { - OP_CREQV, - 0x0000ffff, - 0, - 16, - 0, - 0x0000ffff - }, -}; -static unsigned int cpu_post_cr_size4 = - sizeof (cpu_post_cr_table4) / sizeof (struct cpu_post_cr_s4); - -int cpu_post_test_cr (void) -{ - int ret = 0; - unsigned int i; - unsigned long cr_sav; - - asm ( "mfcr %0" : "=r" (cr_sav) : ); - - for (i = 0; i < cpu_post_cr_size1 && ret == 0; i++) - { - ulong cr = cpu_post_cr_table1[i]; - ulong res; - - unsigned long code[] = - { - ASM_MTCR(3), - ASM_MFCR(3), - ASM_BLR, - }; - - cpu_post_exec_11 (code, &res, cr); - - ret = res == cr ? 0 : -1; - - if (ret != 0) - { - post_log ("Error at cr1 test %d !\n", i); - } - } - - for (i = 0; i < cpu_post_cr_size2 && ret == 0; i++) - { - struct cpu_post_cr_s2 *test = cpu_post_cr_table2 + i; - ulong res; - ulong xer; - - unsigned long code[] = - { - ASM_MTXER(3), - ASM_MCRXR(test->cr), - ASM_MFCR(3), - ASM_MFXER(4), - ASM_BLR, - }; - - cpu_post_exec_21x (code, &res, &xer, test->xer); - - ret = xer == 0 && ((res << (4 * test->cr)) & 0xe0000000) == test->xer ? - 0 : -1; - - if (ret != 0) - { - post_log ("Error at cr2 test %d !\n", i); - } - } - - for (i = 0; i < cpu_post_cr_size3 && ret == 0; i++) - { - struct cpu_post_cr_s3 *test = cpu_post_cr_table3 + i; - ulong res; - - unsigned long code[] = - { - ASM_MTCR(3), - ASM_MCRF(test->cd, test->cs), - ASM_MFCR(3), - ASM_BLR, - }; - - cpu_post_exec_11 (code, &res, test->cr); - - ret = res == test->res ? 0 : -1; - - if (ret != 0) - { - post_log ("Error at cr3 test %d !\n", i); - } - } - - for (i = 0; i < cpu_post_cr_size4 && ret == 0; i++) - { - struct cpu_post_cr_s4 *test = cpu_post_cr_table4 + i; - ulong res; - - unsigned long code[] = - { - ASM_MTCR(3), - ASM_12F(test->cmd, test->op3, test->op1, test->op2), - ASM_MFCR(3), - ASM_BLR, - }; - - cpu_post_exec_11 (code, &res, test->cr); - - ret = res == test->res ? 0 : -1; - - if (ret != 0) - { - post_log ("Error at cr4 test %d !\n", i); - } - } - - asm ( "mtcr %0" : : "r" (cr_sav)); - - return ret; -} - -#endif -#endif |