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/*
* 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
*/
/*
* Diagnostics support
*/
#include <common.h>
#include <command.h>
#include <post.h>
#include "slt.h"
#if ((CFG_CMD_SLT & CFG_CMD_MICTEST) && defined(CONFIG_SLT))
#include "mictest.h"
static unsigned char ctrlbuf[MIC_MAX_CTRL];
static unsigned char chksumbuf[MIC_MAX_CHKSUM];
void vInitSCU(void)
{
unsigned long ulData;
*(unsigned long *) (0x1e6e2000) = 0x1688A8A8;
udelay(100);
ulData = *(unsigned long *) (0x1e6e2004);
ulData &= 0xbffff;
*(unsigned long *) (0x1e6e2004) = ulData;
}
void vInitMIC(void)
{
unsigned long i, j, ulPageNumber;
unsigned char *pjctrl, *pjsum;
ulPageNumber = DRAMSIZE >> 12;
pjctrl = (unsigned char *)(m16byteAlignment((unsigned long) ctrlbuf));
pjsum = (unsigned char *)(m16byteAlignment((unsigned long) chksumbuf));
/* init ctrl buffer (2bits for one page) */
for (i=0; i< (ulPageNumber/4); i++)
*(unsigned char *) (pjctrl + i) = DEFAULT_CTRL;
/* init chksum buf (4bytes for one page) */
for (i=0; i<ulPageNumber; i++)
*(unsigned long *) (pjsum + i*4) = DEFAULT_CHKSUM;
*(unsigned long *) (MIC_BASE + MIC_CTRLBUFF_REG) = (unsigned long) pjctrl;
*(unsigned long *) (MIC_BASE + MIC_CHKSUMBUF_REG) = (unsigned long) pjsum;
*(unsigned long *) (MIC_BASE + MIC_RATECTRL_REG) = (unsigned long) DEFAULT_RATE;
*(unsigned long *) (MIC_BASE + MIC_ENGINECTRL_REG) = MIC_ENABLE_MIC | (DRAMSIZE - 0x1000);
}
void vDisableMIC(void)
{
*(unsigned long *) (MIC_BASE + MIC_ENGINECTRL_REG) = MIC_RESET_MIC;
}
int do_chksum(void)
{
unsigned long i, j, k, ulPageNumber;
int Status = 0;
unsigned short tmp;
volatile unsigned long sum1, sum2;
unsigned long goldensum, chksum;
unsigned long len, tlen;
unsigned char *pjsum;
ulPageNumber = DRAMSIZE >> 12;
pjsum = (unsigned char *)(m16byteAlignment((unsigned long) chksumbuf));
/* start test */
for (i=0; i<ulPageNumber; i++)
{
sum1 = 0xffff, sum2 = 0xffff;
len = 0x0800;
j = 0;
while (len)
{
tlen = len > 360 ? 360 : len;
len -= tlen;
do {
tmp = *(unsigned short *) (DRAM_BASE + ((i << 12) + j));
sum1 += (unsigned long) tmp;
sum2 += sum1;
j+=2;
} while (--tlen);
sum1 = (sum1 & 0xffff) + (sum1 >> 16);
sum2 = (sum2 & 0xffff) + (sum2 >> 16);
}
sum1 = (sum1 & 0xffff) + (sum1 >> 16);
sum2 = (sum2 & 0xffff) + (sum2 >> 16);
goldensum = (sum2 << 16) | sum1;
k= 0;
do {
chksum = *(unsigned long *) (pjsum + i*4);
udelay(100);
k++;
} while ((chksum == 0) && (k<1000));
if (chksum != goldensum)
{
Status = 1;
printf("[FAIL] MIC Chksum Failed at Page %x \n", i);
}
} /* end of i loop */
return (Status);
}
int do_mictest (void)
{
unsigned long Flags = 0;
vInitSCU();
vInitMIC();
if (do_chksum())
Flags = 1;
vDisableMIC();
return Flags;
}
#endif /* CONFIG_SLT */
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