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[/] [amber/] [trunk/] [hw/] [tests/] [ethmac_mem.S] - Rev 66
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/*****************************************************************
// //
// Amber 2 System Ethernet MAC Test //
// //
// This file is part of the Amber project //
// http://www.opencores.org/project,amber //
// //
// Description //
// Tests wishbone access to the internal memory in the //
// Ethernet MAC module. //
// //
// 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:
@ Test reading of ethmac's internal BD memory
@ 0x400 to 0x7ff
ldr r0, AdrEthMacMemBase
ldr r1, Data0
str r1, [r0], #4
ldr r1, Data1
str r1, [r0], #4
ldr r1, Data2
str r1, [r0], #4
ldr r1, Data3
str r1, [r0], #4
@ Read back and check the 4 values
ldr r0, AdrEthMacMemBase
ldr r2, [r0], #4
ldr r3, Data0
cmp r2, r3
movne r10, #10
bne testfail
ldr r2, [r0], #4
ldr r3, Data1
cmp r2, r3
movne r10, #20
bne testfail
ldr r2, [r0], #4
ldr r3, Data2
cmp r2, r3
movne r10, #30
bne testfail
ldr r2, [r0], #4
ldr r3, Data3
cmp r2, r3
movne r10, #40
bne testfail
@ Write all locations from 0x400 to 0x7ff, with Data == Address
ldr r0, AdrEthMacMemBase
add r1, r0, #0x400
mov r2, #0
1: str r2, [r0], #4
cmp r0, r1
beq checkem
add r2, r2, #4
b 1b
checkem:
@ Now read back all the locations, checking the values
ldr r0, AdrEthMacMemBase
mov r2, #0
2: ldr r3, [r0], #4
cmp r2, r3
movne r10, r0
subne r10, r10, #4
bne testfail
add r2, r2, #4
cmp r0, r1
beq testpass
b 2b
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
AdrEthMacModer: .word ADR_ETHMAC_MODER
AdrEthMacMIIModer: .word ADR_ETHMAC_MIIMODER
AdrEthMacMIICommand: .word ADR_ETHMAC_MIICOMMAND
AdrEthMacMIIAddress: .word ADR_ETHMAC_MIIADDRESS
AdrEthMacMIITxData: .word ADR_ETHMAC_MIITXDATA
AdrEthMacMIIRxData: .word ADR_ETHMAC_MIIRXDATA
AdrEthMacMIIStatus: .word ADR_ETHMAC_MIISTATUS
AdrEthMacMemBase: .word ADR_ETHMAC_BDBASE
Data0: .word 0xc0c0c0c0
Data1: .word 0xff00ff00
Data2: .word 0x12345678
Data3: .word 0x77777777
/* ========================================================================= */
/* ========================================================================= */
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