0662793ca0
Cleaned up, rebased, and forward-ported from the xvortex fork. (original credit to vsoftster@gmail.com) Change-Id: Ibcc023a0271ea81e901450a88317708c2683236d Signed-off-by: Solomon Peachy <pizza@shaftnet.org>
102 lines
3.8 KiB
C
102 lines
3.8 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id$
|
|
*
|
|
* Copyright (C) 2016 by Roman Stolyarov
|
|
*
|
|
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#include "dma-target.h"
|
|
|
|
#define MDMA_CHANNEL 0
|
|
|
|
void memset_dma(void *target, int c, size_t len, unsigned int bits)
|
|
{
|
|
unsigned int d;
|
|
unsigned char *dp;
|
|
|
|
if(((unsigned int)target < 0xa0000000) && len)
|
|
dma_cache_wback_inv((unsigned long)target, len);
|
|
|
|
dp = (unsigned char *)((unsigned int)(&d) | 0xa0000000);
|
|
*(dp + 0) = c;
|
|
*(dp + 1) = c;
|
|
*(dp + 2) = c;
|
|
*(dp + 3) = c;
|
|
|
|
REG_MDMAC_DCCSR(MDMA_CHANNEL) = 0;
|
|
REG_MDMAC_DSAR(MDMA_CHANNEL) = PHYSADDR((unsigned long)dp);
|
|
REG_MDMAC_DTAR(MDMA_CHANNEL) = PHYSADDR((unsigned long)target);
|
|
REG_MDMAC_DRSR(MDMA_CHANNEL) = DMAC_DRSR_RS_AUTO;
|
|
switch (bits)
|
|
{
|
|
case 8:
|
|
REG_MDMAC_DTCR(MDMA_CHANNEL) = len;
|
|
REG_MDMAC_DCMD(MDMA_CHANNEL) = DMAC_DCMD_DAI | DMAC_DCMD_SWDH_8 | DMAC_DCMD_DWDH_8 | DMAC_DCMD_DS_8BIT;
|
|
break;
|
|
case 16:
|
|
REG_MDMAC_DTCR(MDMA_CHANNEL) = len / 2;
|
|
REG_MDMAC_DCMD(MDMA_CHANNEL) = DMAC_DCMD_DAI | DMAC_DCMD_SWDH_16 | DMAC_DCMD_DWDH_16 | DMAC_DCMD_DS_16BIT;
|
|
break;
|
|
case 32:
|
|
REG_MDMAC_DTCR(MDMA_CHANNEL) = len / 4;
|
|
REG_MDMAC_DCMD(MDMA_CHANNEL) = DMAC_DCMD_DAI | DMAC_DCMD_SWDH_32 | DMAC_DCMD_DWDH_32 | DMAC_DCMD_DS_32BIT;
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
REG_MDMAC_DCCSR(MDMA_CHANNEL) = DMAC_DCCSR_EN | DMAC_DCCSR_NDES;
|
|
|
|
while (REG_MDMAC_DTCR(MDMA_CHANNEL));
|
|
|
|
REG_MDMAC_DCCSR(MDMA_CHANNEL) = 0;
|
|
}
|
|
|
|
void memcpy_dma(void *target, const void *source, size_t len, unsigned int bits)
|
|
{
|
|
if(((unsigned int)source < 0xa0000000) && len)
|
|
dma_cache_wback_inv((unsigned long)source, len);
|
|
|
|
if(((unsigned int)target < 0xa0000000) && len)
|
|
dma_cache_wback_inv((unsigned long)target, len);
|
|
|
|
REG_MDMAC_DCCSR(MDMA_CHANNEL) = 0;
|
|
REG_MDMAC_DSAR(MDMA_CHANNEL) = PHYSADDR((unsigned long)source);
|
|
REG_MDMAC_DTAR(MDMA_CHANNEL) = PHYSADDR((unsigned long)target);
|
|
REG_MDMAC_DRSR(MDMA_CHANNEL) = DMAC_DRSR_RS_AUTO;
|
|
switch (bits)
|
|
{
|
|
case 8:
|
|
REG_MDMAC_DTCR(MDMA_CHANNEL) = len;
|
|
REG_MDMAC_DCMD(MDMA_CHANNEL) = DMAC_DCMD_SAI | DMAC_DCMD_DAI | DMAC_DCMD_SWDH_8 | DMAC_DCMD_DWDH_8 | DMAC_DCMD_DS_8BIT;
|
|
break;
|
|
case 16:
|
|
REG_MDMAC_DTCR(MDMA_CHANNEL) = len / 2;
|
|
REG_MDMAC_DCMD(MDMA_CHANNEL) = DMAC_DCMD_SAI | DMAC_DCMD_DAI | DMAC_DCMD_SWDH_16 | DMAC_DCMD_DWDH_16 | DMAC_DCMD_DS_16BIT;
|
|
break;
|
|
case 32:
|
|
REG_MDMAC_DTCR(MDMA_CHANNEL) = len / 4;
|
|
REG_MDMAC_DCMD(MDMA_CHANNEL) = DMAC_DCMD_SAI | DMAC_DCMD_DAI | DMAC_DCMD_SWDH_32 | DMAC_DCMD_DWDH_32 | DMAC_DCMD_DS_32BIT;
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
REG_MDMAC_DCCSR(MDMA_CHANNEL) = DMAC_DCCSR_EN | DMAC_DCCSR_NDES;
|
|
|
|
while (REG_MDMAC_DTCR(MDMA_CHANNEL));
|
|
|
|
REG_MDMAC_DCCSR(MDMA_CHANNEL) = 0;
|
|
}
|