/* Blackfin Enhanced Parallel Port Interface (EPPI) model
For "new style" PPIs on BF54x/etc... parts.
- Copyright (C) 2010-2011 Free Software Foundation, Inc.
+ Copyright (C) 2010-2019 Free Software Foundation, Inc.
Contributed by Analog Devices, Inc.
This file is part of simulators.
bu32 *value32p;
void *valuep;
+ /* Invalid access mode is higher priority than missing register. */
+ if (!dv_bfin_mmr_require_16_32 (me, addr, nr_bytes, true))
+ return 0;
+
if (nr_bytes == 4)
value = dv_load_4 (source);
else
switch (mmr_off)
{
case mmr_offset(status):
- dv_bfin_mmr_require_16 (me, addr, nr_bytes, true);
+ if (!dv_bfin_mmr_require_16 (me, addr, nr_bytes, true))
+ return 0;
dv_w1c_2 (value16p, value, 0x1ff);
break;
case mmr_offset(hcount):
case mmr_offset(frame):
case mmr_offset(line):
case mmr_offset(clkdiv):
- dv_bfin_mmr_require_16 (me, addr, nr_bytes, true);
+ if (!dv_bfin_mmr_require_16 (me, addr, nr_bytes, true))
+ return 0;
*value16p = value;
break;
case mmr_offset(control):
case mmr_offset(fs2p_lavf):
case mmr_offset(clip):
case mmr_offset(err):
- dv_bfin_mmr_require_32 (me, addr, nr_bytes, true);
+ if (!dv_bfin_mmr_require_32 (me, addr, nr_bytes, true))
+ return 0;
*value32p = value;
break;
default:
dv_bfin_mmr_invalid (me, addr, nr_bytes, true);
- break;
+ return 0;
}
return nr_bytes;
bu32 *value32p;
void *valuep;
+ /* Invalid access mode is higher priority than missing register. */
+ if (!dv_bfin_mmr_require_16_32 (me, addr, nr_bytes, true))
+ return 0;
+
mmr_off = addr - eppi->base;
valuep = (void *)((unsigned long)eppi + mmr_base() + mmr_off);
value16p = valuep;
case mmr_offset(frame):
case mmr_offset(line):
case mmr_offset(clkdiv):
- dv_bfin_mmr_require_16 (me, addr, nr_bytes, false);
+ if (!dv_bfin_mmr_require_16 (me, addr, nr_bytes, false))
+ return 0;
dv_store_2 (dest, *value16p);
break;
case mmr_offset(control):
case mmr_offset(fs2p_lavf):
case mmr_offset(clip):
case mmr_offset(err):
- dv_bfin_mmr_require_32 (me, addr, nr_bytes, false);
+ if (!dv_bfin_mmr_require_32 (me, addr, nr_bytes, false))
+ return 0;
dv_store_4 (dest, *value32p);
break;
default:
dv_bfin_mmr_invalid (me, addr, nr_bytes, false);
- break;
+ return 0;
}
return nr_bytes;