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ice40/pack: Allow PLL to be constrained via 'BEL' attributes

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Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
This commit is contained in:
Sylvain Munaut 2018-11-16 22:55:57 +01:00
parent 8c69a3bba3
commit 5fb3353557
1 changed files with 10 additions and 0 deletions
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10
ice40/pack.cc
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@ -886,6 +886,16 @@ static void pack_special(Context *ctx)
log_error("Could not constrain PLL '%s' to any PLL Bel (too many PLLs?)\n",
packed->name.c_str(ctx));
}
} else {
pll_bel = ctx->getBelByName(ctx->id(packed->attrs[ctx->id("BEL")]));
if (ctx->getBelType(pll_bel) != id_ICESTORM_PLL)
log_error("PLL '%s' is constrained to BEL %s which isn't a ICESTORM_PLL BEL\n",
packed->name.c_str(ctx), ctx->getBelName(pll_bel).c_str(ctx));
if (ctx->isBelLocked(pll_bel))
log_error("PLL '%s' is constrained to locked BEL %s\n", packed->name.c_str(ctx),
ctx->getBelName(pll_bel).c_str(ctx));
log_info(" constrained PLL '%s' to %s\n", packed->name.c_str(ctx),
ctx->getBelName(pll_bel).c_str(ctx));
}
// Delete the original PACKAGEPIN net if needed.