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[/] [amber/] [trunk/] [hw/] [tests/] [ddr31.S] - Blame information for rev 2

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/*****************************************************************
//                                                              //
//  Amber 2 Core DDR3 Memory Access                             //
//                                                              //
//  This file is part of the Amber project                      //
//  http://www.opencores.org/project,amber                      //
//                                                              //
//  Description                                                 //
//  Word accesses to random addresses in DDR3 memory            //
//  The test creates a list of addresses in an area of          //
//  boot_mem. It then writes to all addresses with data value   //
//  equal to address. Finally it reads back all locations       //
//  checking that the read value is correct.                    //
//                                                              //
//  Author(s):                                                  //
//      - Conor Santifort, csantifort.amber@gmail.com           //
//                                                              //
//////////////////////////////////////////////////////////////////
//                                                              //
// Copyright (C) 2010 Authors and OPENCORES.ORG                 //
//                                                              //
// This source file may be used and distributed without         //
// restriction provided that this copyright statement is not    //
// removed from the file and that any derivative work contains  //
// the original copyright notice and the associated disclaimer. //
//                                                              //
// This source file is free software; you can redistribute it   //
// and/or modify it under the terms of the GNU Lesser General   //
// Public License as published by the Free Software Foundation; //
// either version 2.1 of the License, or (at your option) any   //
// later version.                                               //
//                                                              //
// This source 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 Lesser General Public License for more //
// details.                                                     //
//                                                              //
// You should have received a copy of the GNU Lesser General    //
// Public License along with this source; if not, download it   //
// from http://www.opencores.org/lgpl.shtml                     //
//                                                              //
*****************************************************************/
 
#include "amber_registers.h"
#define ARRAY_WORDS 0x40
 
        .section .text
        .globl  main
main:
 
        @ --------------------------------------------
        @ Quick Pre-Test
        ldr     r0, DDRBase
        add     r4, r0, #12
        mov     r1, #0xff
        mov     r3, #0x55
 
        str     r1, [r0]
        str     r3, [r4]
        ldr     r2, [r0]
        ldr     r5, [r4]
 
        cmp     r1, r2
        movne   r10, #10
        bne     testfail
 
        cmp     r3, r5
        movne   r10, #15
        bne     testfail
 
        @ --------------------------------------------
        @ Create an array of random accresses
        @ Write data = address to each address
        @ Read back and verify data is correct
 
        @ setup
        ldr     r0,  AdrRanNum
        ldr     r9,  PointerBase
        ldr     r10, DDRBase
        mov     r11, #ARRAY_WORDS
 
1:      ldmia   r0,{r1-r8}
        add     r1, r10, r1, lsl #2
        add     r2, r1,  r2, lsl #2
        add     r3, r2,  r3, lsl #2
        add     r4, r3,  r4, lsl #2
        add     r5, r4,  r5, lsl #2
        add     r6, r5,  r6, lsl #2
        add     r7, r6,  r7, lsl #2
        add     r8, r7,  r8, lsl #2
 
        stmia   r9,{r1-r8}
 
        add     r9, r9, #32
        mov     r10, r8
 
        subs    r11, r11, #1
        bne     1b
        @ --------------------------------------------
 
        @ Write array to ddr memory
        ldr     r9,  PointerBase
        mov     r11, #ARRAY_WORDS
 
2:      ldmia   r9,  {r1-r8}
        str     r1, [r1]
        str     r2, [r2]
        str     r3, [r3]
        str     r4, [r4]
        str     r5, [r5]
        str     r6, [r6]
        str     r7, [r7]
        str     r8, [r8]
 
        add     r9, r9, #32
        subs    r11, r11, #1
        bne     2b
 
 
        @ --------------------------------------------
 
        @ Read array back from ddr and verify it
        ldr     r9,  PointerBase
        mov     r11, #ARRAY_WORDS
3:      ldmia   r9,  {r1-r8}
 
        @ r1
        ldr     r12, [r1]
        cmp     r12, r1
        movne   r10, #10
        bne     testfail
 
        @ r2
        ldr     r12, [r2]
        cmp     r12, r2
        movne   r10, #10
        bne     testfail
 
        @ r3
        ldr     r12, [r3]
        cmp     r12, r3
        movne   r10, #10
        bne     testfail
 
        @ r4
        ldr     r12, [r4]
        cmp     r12, r4
        movne   r10, #10
        bne     testfail
 
 
        @ r5
        ldr     r12, [r5]
        cmp     r12, r5
        movne   r10, #10
        bne     testfail
 
        @ r6
        ldr     r12, [r6]
        cmp     r12, r6
        movne   r10, #10
        bne     testfail
 
        @ r7
        ldr     r12, [r7]
        cmp     r12, r7
        movne   r10, #10
        bne     testfail
 
        @ r8
        ldr     r12, [r8]
        cmp     r12, r8
        movne   r10, #10
        bne     testfail
 
        add     r9, r9, #32
        subs    r11, r11, #1
        bne     3b
 
 
        b       testpass
 
 
testfail:
        ldr     r11, AdrTestStatus
        str     r10, [r11]
        b       testfail
 
testpass:
        ldr     r11, AdrTestStatus
        mov     r10, #17
        str     r10, [r11]
        b       testpass
 
 
/* Write 17 to this address to generate a Test Passed message */
AdrTestStatus:  .word ADR_AMBER_TEST_STATUS
AdrRanNum:      .word ADR_AMBER_TEST_RANDOM_NUM
PointerBase:    .word 0x1000
DDRBase:        .word 0x20000

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[/] [amber/] [trunk/] [hw/] [tests/] [ddr31.S] - Blame information for rev 2

Line No.	Rev	Author	Line
1	2	csantifort	`/*****************************************************************`
2			`// //`
3			`// Amber 2 Core DDR3 Memory Access //`
4			`// //`
5			`// This file is part of the Amber project //`
6			`// http://www.opencores.org/project,amber //`
7			`// //`
8			`// Description //`
9			`// Word accesses to random addresses in DDR3 memory //`
10			`// The test creates a list of addresses in an area of //`
11			`// boot_mem. It then writes to all addresses with data value //`
12			`// equal to address. Finally it reads back all locations //`
13			`// checking that the read value is correct. //`
14			`// //`
15			`// Author(s): //`
16			`// - Conor Santifort, csantifort.amber@gmail.com //`
17			`// //`
18			`//////////////////////////////////////////////////////////////////`
19			`// //`
20			`// Copyright (C) 2010 Authors and OPENCORES.ORG //`
21			`// //`
22			`// This source file may be used and distributed without //`
23			`// restriction provided that this copyright statement is not //`
24			`// removed from the file and that any derivative work contains //`
25			`// the original copyright notice and the associated disclaimer. //`
26			`// //`
27			`// This source file is free software; you can redistribute it //`
28			`// and/or modify it under the terms of the GNU Lesser General //`
29			`// Public License as published by the Free Software Foundation; //`
30			`// either version 2.1 of the License, or (at your option) any //`
31			`// later version. //`
32			`// //`
33			`// This source is distributed in the hope that it will be //`
34			`// useful, but WITHOUT ANY WARRANTY; without even the implied //`
35			`// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR //`
36			`// PURPOSE. See the GNU Lesser General Public License for more //`
37			`// details. //`
38			`// //`
39			`// You should have received a copy of the GNU Lesser General //`
40			`// Public License along with this source; if not, download it //`
41			`// from http://www.opencores.org/lgpl.shtml //`
42			`// //`
43			`*****************************************************************/`
44
45			`#include "amber_registers.h"`
46			`#define ARRAY_WORDS 0x40`
47
48			`.section .text`
49			`.globl main`
50			`main:`
51
52			`@ --------------------------------------------`
53			`@ Quick Pre-Test`
54			`ldr r0, DDRBase`
55			`add r4, r0, #12`
56			`mov r1, #0xff`
57			`mov r3, #0x55`
58
59			`str r1, [r0]`
60			`str r3, [r4]`
61			`ldr r2, [r0]`
62			`ldr r5, [r4]`
63
64			`cmp r1, r2`
65			`movne r10, #10`
66			`bne testfail`
67
68			`cmp r3, r5`
69			`movne r10, #15`
70			`bne testfail`
71
72			`@ --------------------------------------------`
73			`@ Create an array of random accresses`
74			`@ Write data = address to each address`
75			`@ Read back and verify data is correct`
76
77			`@ setup`
78			`ldr r0, AdrRanNum`
79			`ldr r9, PointerBase`
80			`ldr r10, DDRBase`
81			`mov r11, #ARRAY_WORDS`
82
83			`1: ldmia r0,{r1-r8}`
84			`add r1, r10, r1, lsl #2`
85			`add r2, r1, r2, lsl #2`
86			`add r3, r2, r3, lsl #2`
87			`add r4, r3, r4, lsl #2`
88			`add r5, r4, r5, lsl #2`
89			`add r6, r5, r6, lsl #2`
90			`add r7, r6, r7, lsl #2`
91			`add r8, r7, r8, lsl #2`
92
93			`stmia r9,{r1-r8}`
94
95			`add r9, r9, #32`
96			`mov r10, r8`
97
98			`subs r11, r11, #1`
99			`bne 1b`
100			`@ --------------------------------------------`
101
102			`@ Write array to ddr memory`
103			`ldr r9, PointerBase`
104			`mov r11, #ARRAY_WORDS`
105
106			`2: ldmia r9, {r1-r8}`
107			`str r1, [r1]`
108			`str r2, [r2]`
109			`str r3, [r3]`
110			`str r4, [r4]`
111			`str r5, [r5]`
112			`str r6, [r6]`
113			`str r7, [r7]`
114			`str r8, [r8]`
115
116			`add r9, r9, #32`
117			`subs r11, r11, #1`
118			`bne 2b`
119
120
121			`@ --------------------------------------------`
122
123			`@ Read array back from ddr and verify it`
124			`ldr r9, PointerBase`
125			`mov r11, #ARRAY_WORDS`
126			`3: ldmia r9, {r1-r8}`
127
128			`@ r1`
129			`ldr r12, [r1]`
130			`cmp r12, r1`
131			`movne r10, #10`
132			`bne testfail`
133
134			`@ r2`
135			`ldr r12, [r2]`
136			`cmp r12, r2`
137			`movne r10, #10`
138			`bne testfail`
139
140			`@ r3`
141			`ldr r12, [r3]`
142			`cmp r12, r3`
143			`movne r10, #10`
144			`bne testfail`
145
146			`@ r4`
147			`ldr r12, [r4]`
148			`cmp r12, r4`
149			`movne r10, #10`
150			`bne testfail`
151
152
153			`@ r5`
154			`ldr r12, [r5]`
155			`cmp r12, r5`
156			`movne r10, #10`
157			`bne testfail`
158
159			`@ r6`
160			`ldr r12, [r6]`
161			`cmp r12, r6`
162			`movne r10, #10`
163			`bne testfail`
164
165			`@ r7`
166			`ldr r12, [r7]`
167			`cmp r12, r7`
168			`movne r10, #10`
169			`bne testfail`
170
171			`@ r8`
172			`ldr r12, [r8]`
173			`cmp r12, r8`
174			`movne r10, #10`
175			`bne testfail`
176
177			`add r9, r9, #32`
178			`subs r11, r11, #1`
179			`bne 3b`
180
181
182			`b testpass`
183
184
185			`testfail:`
186			`ldr r11, AdrTestStatus`
187			`str r10, [r11]`
188			`b testfail`
189
190			`testpass:`
191			`ldr r11, AdrTestStatus`
192			`mov r10, #17`
193			`str r10, [r11]`
194			`b testpass`
195
196
197			`/* Write 17 to this address to generate a Test Passed message */`
198			`AdrTestStatus: .word ADR_AMBER_TEST_STATUS`
199			`AdrRanNum: .word ADR_AMBER_TEST_RANDOM_NUM`
200			`PointerBase: .word 0x1000`
201			`DDRBase: .word 0x20000`