From 76be215ee1271adb4a9ed04ee8b102c28e825798 Mon Sep 17 00:00:00 2001 From: oharboe Date: Wed, 8 Oct 2008 05:09:59 +0000 Subject: John McCarthy adds support for DMA mode access as supported by EJTAG 1.0/2.0 processors git-svn-id: svn://svn.berlios.de/openocd/trunk@1029 b42882b7-edfa-0310-969c-e2dbd0fdcd60 --- src/target/mips32_dmaacc.h | 53 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 src/target/mips32_dmaacc.h (limited to 'src/target/mips32_dmaacc.h') diff --git a/src/target/mips32_dmaacc.h b/src/target/mips32_dmaacc.h new file mode 100644 index 00000000..b6d544c5 --- /dev/null +++ b/src/target/mips32_dmaacc.h @@ -0,0 +1,53 @@ +/*************************************************************************** + * Copyright (C) 2008 by John McCarthy * + * jgmcc@magma.ca * + * * + * Copyright (C) 2008 by Spencer Oliver * + * spen@spen-soft.co.uk * + * * + * Copyright (C) 2008 by David T.L. Wong * + * * + * 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. * + ***************************************************************************/ +#ifndef MIPS32_DMAACC_H +#define MIPS32_DMAACC_H + +#include "mips_ejtag.h" + +#define EJTAG_CTRL_DMA_BYTE 0x00000000 +#define EJTAG_CTRL_DMA_HALFWORD 0x00000080 +#define EJTAG_CTRL_DMA_WORD 0x00000100 +#define EJTAG_CTRL_DMA_TRIPLEBYTE 0x00000180 + +#define RETRY_ATTEMPTS 4 + +extern int mips32_dmaacc_read_mem(mips_ejtag_t *ejtag_info, u32 addr, int size, int count, void *buf); +extern int mips32_dmaacc_write_mem(mips_ejtag_t *ejtag_info, u32 addr, int size, int count, void *buf); + +extern int mips32_dmaacc_read_mem8(mips_ejtag_t *ejtag_info, u32 addr, int count, u8 *buf); +extern int mips32_dmaacc_read_mem16(mips_ejtag_t *ejtag_info, u32 addr, int count, u16 *buf); +extern int mips32_dmaacc_read_mem32(mips_ejtag_t *ejtag_info, u32 addr, int count, u32 *buf); + +extern int mips32_dmaacc_write_mem8(mips_ejtag_t *ejtag_info, u32 addr, int count, u8 *buf); +extern int mips32_dmaacc_write_mem16(mips_ejtag_t *ejtag_info, u32 addr, int count, u16 *buf); +extern int mips32_dmaacc_write_mem32(mips_ejtag_t *ejtag_info, u32 addr, int count, u32 *buf); + +#if 0 +extern int mips32_dmaacc_read_regs(mips_ejtag_t *ejtag_info, u32 *regs); +extern int mips32_dmaacc_write_regs(mips_ejtag_t *ejtag_info, u32 *regs); +#endif + +#endif -- cgit v1.2.3