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[cw310] Stub out ENTROPY_SRC, OTBN, USBDEV, disable Ibex features #30496

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[cw310] Stub out ENTROPY_SRC, OTBN, USBDEV, disable Ibex features #30496

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10 changes: 9 additions & 1 deletion hw/top_earlgrey/rtl/autogen/chip_earlgrey_cw310.sv
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Original file line number Diff line number Diff line change
Expand Up @@ -1121,9 +1121,17 @@ module chip_earlgrey_cw310 #(
// Top-level design //
//////////////////////
top_earlgrey #(
.EntropySrcStub(1'b1), // Stub ENTROPY_SRC to reduce resource usage on CW310. See #30062.
.OtbnStub(1'b1), // Stub OTBN to reduce resource usage on CW310. See #30062.
.UsbdevStub(1'b1), // Stub USBDEV to reduce resource usage on CW310. See #30062.
.SecAesMasking(1'b0), // Disable AES masking on the CW310, where we are constrained by area.
.OtbnFeatStubMai(1'b1), // Stub MAI to reduce resource usage on CW310. See #30062.
.SecAesSBoxImpl(aes_pkg::SBoxImplLut),
.RvCoreIbexPMPEnable(1'b0),
.RvCoreIbexRV32B(ibex_pkg::RV32BNone),
.RvCoreIbexRV32ZC(ibex_pkg::RV32Zca),
.RvCoreIbexBranchTargetALU(1'b0),
.RvCoreIbexWritebackStage(1'b0),
.RvCoreIbexICache(1'b0),
.SecAesStartTriggerDelay(0),
.SecAesAllowForcingMasks(1'b1),
.CsrngSBoxImpl(aes_pkg::SBoxImplLut),
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10 changes: 9 additions & 1 deletion hw/top_earlgrey/templates/chiplevel.sv.tpl
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Expand Up @@ -1148,9 +1148,17 @@ module chip_${top["name"]}_${target["name"]} #(
//////////////////////
top_${top["name"]} #(
% if target["name"] == "cw310":
.EntropySrcStub(1'b1), // Stub ENTROPY_SRC to reduce resource usage on CW310. See #30062.
.OtbnStub(1'b1), // Stub OTBN to reduce resource usage on CW310. See #30062.
.UsbdevStub(1'b1), // Stub USBDEV to reduce resource usage on CW310. See #30062.
.SecAesMasking(1'b0), // Disable AES masking on the CW310, where we are constrained by area.
.OtbnFeatStubMai(1'b1), // Stub MAI to reduce resource usage on CW310. See #30062.
.SecAesSBoxImpl(aes_pkg::SBoxImplLut),
.RvCoreIbexPMPEnable(1'b0),
.RvCoreIbexRV32B(ibex_pkg::RV32BNone),
.RvCoreIbexRV32ZC(ibex_pkg::RV32Zca),
.RvCoreIbexBranchTargetALU(1'b0),
.RvCoreIbexWritebackStage(1'b0),
.RvCoreIbexICache(1'b0),
% elif target["name"] == "cw340":
.SecAesMasking(1'b1),
.SecAesSBoxImpl(aes_pkg::SBoxImplDom),
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