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/*
* (C) Copyright 2008 Dmitry Rakhchev, EmCraft Systems, rda@emcraft.com
*
* Developed for DENX Software Engineering GmbH
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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 <common.h>
#include <post.h>
#if CONFIG_POST & CONFIG_SYS_POST_DSP
#include <asm/io.h>
/* This test verifies DSP status bits in FPGA */
DECLARE_GLOBAL_DATA_PTR;
#define DSP_STATUS_REG 0xC4000008
#define FPGA_STATUS_REG 0xC400000C
int dsp_post_test(int flags)
{
uint old_value;
uint read_value;
int ret;
/* momorize fpga status */
old_value = in_be32((void *)FPGA_STATUS_REG);
/* enable outputs */
out_be32((void *)FPGA_STATUS_REG, 0x30);
/* generate sync signal */
out_be32((void *)DSP_STATUS_REG, 0x300);
udelay(5);
out_be32((void *)DSP_STATUS_REG, 0);
udelay(500);
/* read status */
ret = 0;
read_value = in_be32((void *)DSP_STATUS_REG) & 0x3;
if (read_value != 0x03) {
post_log("\nDSP status read %08X\n", read_value);
ret = 1;
}
/* restore fpga status */
out_be32((void *)FPGA_STATUS_REG, old_value);
return ret;
}
#endif /* CONFIG_POST & CONFIG_SYS_POST_DSP */
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