S32 pwrap_write( U32 adr, U32 wdata )
{
return pwrap_wacs2( PWRAP_WRITE, adr,wdata,0 );
}
/*
* pwrap_init_sidly - configure serial input delay
*
* This configures the serial input delay. We can configure 0, 2, 4 or 6ns
* delay. Do a read test with all possible values and chose the best delay.
*/
static s32 pwrap_init_sidly(void)
{
u16 rdata;
u32 i;
u32 pass = 0;
u32 sidly = 0;
for (i = 0; i < 4; i++) {
write32(&mtk_pwrap->sidly, i);
pwrap_wacs2(0, DEW_READ_TEST, 0, &rdata, 0);
if (rdata == DEFAULT_VALUE_READ_TEST)
pass |= 1 << i;
}
/*
* Config SIDLY according to results
* Pass range should be continuously or return failed
*/
switch (pass) {
/* only 1 pass, choose it */
case 1 << 0:
sidly = 0;
break;
case 1 << 1:
sidly = 1;
break;
case 1 << 2:
sidly = 2;
break;
case 1 << 3:
sidly = 3;
break;
/* two pass, choose the one on SIDLY boundary */
case (1 << 0) | (1 << 1):
sidly = 0;
break;
case (1 << 1) | (1 << 2): /* no boundary, choose smaller one */
sidly = 1;
break;
case (1 << 2) | (1 << 3):
sidly = 3;
break;
/* three pass, choose the middle one */
case (1 << 0) | (1 << 1) | (1 << 2):
sidly = 1;
break;
case (1 << 1) | (1 << 2) | (1 << 3):
sidly = 2;
break;
/* four pass, choose the smaller middle one */
case (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3):
sidly = 1;
break;
/* pass range not continuous, should not happen */
default:
die("sidly pass range not continuous\n");
}
write32(&mtk_pwrap->sidly, sidly);
return 0;
}
S32 pwrap_read( U32 adr, U32 *rdata )
{
return pwrap_wacs2( PWRAP_READ, adr,0,rdata );
}
