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[/] [amber/] [trunk/] [hw/] [tests/] [hiboot_mem.S] - Rev 66
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/*****************************************************************
// //
// Amber 2 Core Boot Memory Test //
// //
// This file is part of the Amber project //
// http://www.opencores.org/project,amber //
// //
// Description //
// Tests wishbone read and write access to hi (non-cachable) //
// boot SRAM. //
// //
// 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"
.section .text
.globl main
main:
/* Store word and single Byte */
ldr r0, HiBootBase
mov r1, #0xff
mov r2, #0xcc
str r1, [r0], #4
strb r2, [r0]
ldr r0, HiBootBase
ldr r3, [r0], #4
ldrb r4, [r0]
cmp r3, #0xff
movne r10, #10
bne testfail
cmp r4, #0xcc
movne r10, #20
bne testfail
@ ------------------------------------------
@ ------------------------------------------
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
/* NB do not overwrite the execution code space !! */
HiBootBase: .word 0x28000200
/* ========================================================================= */
/* ========================================================================= */
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