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git.ipfire.org Git - people/ms/u-boot.git/blob - post/lib_ppc/threei.c
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * See file CREDITS for list of people who contributed to this
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.
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.
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,
28 * Ternary instructions instr rA,rS,UIMM
30 * Logic instructions: ori, oris, xori, xoris
32 * The test contains a pre-built table of instructions, operands and
33 * expected results. For each table entry, the test will cyclically use
34 * different sets of operand registers and result registers.
40 #if CONFIG_POST & CONFIG_SYS_POST_CPU
42 extern void cpu_post_exec_21 (ulong
*code
, ulong
*cr
, ulong
*res
, ulong op
);
43 extern ulong
cpu_post_makecr (long v
);
45 static struct cpu_post_threei_s
51 } cpu_post_threei_table
[] =
78 static unsigned int cpu_post_threei_size
=
79 sizeof (cpu_post_threei_table
) / sizeof (struct cpu_post_threei_s
);
81 int cpu_post_test_threei (void)
85 int flag
= disable_interrupts();
87 for (i
= 0; i
< cpu_post_threei_size
&& ret
== 0; i
++)
89 struct cpu_post_threei_s
*test
= cpu_post_threei_table
+ i
;
91 for (reg
= 0; reg
< 32 && ret
== 0; reg
++)
93 unsigned int reg0
= (reg
+ 0) % 32;
94 unsigned int reg1
= (reg
+ 1) % 32;
95 unsigned int stk
= reg
< 16 ? 31 : 15;
96 unsigned long code
[] =
99 ASM_ADDI(stk
, 1, -16),
101 ASM_STW(reg0
, stk
, 4),
102 ASM_STW(reg1
, stk
, 0),
103 ASM_LWZ(reg0
, stk
, 8),
104 ASM_11IX(test
->cmd
, reg1
, reg0
, test
->op2
),
105 ASM_STW(reg1
, stk
, 8),
106 ASM_LWZ(reg1
, stk
, 0),
107 ASM_LWZ(reg0
, stk
, 4),
109 ASM_ADDI(1, stk
, 16),
117 cpu_post_exec_21 (code
, & cr
, & res
, test
->op1
);
119 ret
= res
== test
->res
&& cr
== 0 ? 0 : -1;
123 post_log ("Error at threei test %d !\n", i
);