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/*
* drivers/arisc/interfaces/arisc_dram_crc.c
*
* Copyright (c) 2012 Allwinner.
* 2012-10-01 Written by superm (superm@allwinnertech.com).
*
* 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
*/
#include "../arisc_i.h"
/**
* set arisc debug dram crc paras.
* @dram_crc_en: arisc debug dram crc enable or disable;
* @dram_crc_srcaddr: source address of dram crc area
* @dram_crc_len: lenght of dram crc area
*
* return: 0 - set arisc debug dram crc paras successed, !0 - set arisc debug dram crc paras failed;
*/
int arisc_set_dram_crc_paras(unsigned int dram_crc_en, unsigned int dram_crc_srcaddr, unsigned int dram_crc_len)
{
struct arisc_message *pmessage;
ARISC_INF("en:%x, src:%x len:%x\n", dram_crc_en, dram_crc_srcaddr, dram_crc_len);
/* allocate a message frame */
pmessage = arisc_message_allocate(0);
if (pmessage == NULL) {
ARISC_ERR("allocate message for seting dram crc paras request failed\n");
return -ENOMEM;
}
/* initialize message */
pmessage->type = ARISC_SET_DEBUG_DRAM_CRC_PARAS;
pmessage->paras[0] = dram_crc_en;
pmessage->paras[1] = dram_crc_srcaddr;
pmessage->paras[2] = dram_crc_len;
pmessage->state = ARISC_MESSAGE_INITIALIZED;
/* send set debug level request to arisc */
arisc_hwmsgbox_send_message(pmessage, ARISC_SEND_MSG_TIMEOUT);
return 0;
}
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