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[hw/prim] Add technology specific prim implementation
Adds standard cell instances for ASAP7, an open-source standard cell library, to the basic prim instances. Each standard cell instance name starts with "u_size_only_" which is used in the synthesis script to apply constraints to the standard cells to prevent logic optimization. Signed-off-by: Michael Gautschi <[email protected]>
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‎hw/ip/prim_asap7/BUILD‎

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# Copyright lowRISC contributors (OpenTitan project).
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# Licensed under the Apache License, Version 2.0, see LICENSE for details.
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# SPDX-License-Identifier: Apache-2.0
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package(default_visibility = ["//visibility:public"])
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filegroup(
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name = "rtl_files",
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srcs = glob(
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["**"],
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exclude = [
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"dv/**",
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"doc/**",
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"README.md",
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],
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) + [
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],
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)

‎hw/ip/prim_asap7/lint/prim_asap7_clock_buf.vlt‎

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// Copyright lowRISC contributors (OpenTitan project).
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// Licensed under the Apache License, Version 2.0, see LICENSE for details.
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// SPDX-License-Identifier: Apache-2.0
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//
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`verilator_config
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lint_off -rule UNUSED -file "*/rtl/prim_clock_buf.sv" -match "Parameter is not used: 'NoFpgaBuf'"

‎hw/ip/prim_asap7/lint/prim_asap7_clock_buf.waiver‎

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# Copyright lowRISC contributors (OpenTitan project).
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# Licensed under the Apache License, Version 2.0, see LICENSE for details.
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# SPDX-License-Identifier: Apache-2.0
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#
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# primitives: prim_clock_buf
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waive -rules PARAM_NOT_USED -location {prim_clock_buf.sv} -regexp {Parameter '(NoFpgaBuf|RegionSel)' not used} \
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-comment "parameter unused but required to maintain uniform interface"

‎hw/ip/prim_asap7/lint/prim_asap7_clock_gating.vlt‎

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// Copyright lowRISC contributors (OpenTitan project).
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// Licensed under the Apache License, Version 2.0, see LICENSE for details.
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// SPDX-License-Identifier: Apache-2.0
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//
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`verilator_config
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lint_off -rule UNUSED -file "*/rtl/prim_clock_inv.sv" -match "Parameter is not used: 'NoFpgaGate|FpgaBufGlobal'"

‎hw/ip/prim_asap7/lint/prim_asap7_clock_gating.waiver‎

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# Copyright lowRISC contributors (OpenTitan project).
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# Licensed under the Apache License, Version 2.0, see LICENSE for details.
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# SPDX-License-Identifier: Apache-2.0
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#
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# primitives: prim_clock_buf
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waive -rules PARAM_NOT_USED -location {prim_clock_gating.sv} -regexp {Parameter '(NoFpgaGate|FpgaBufGlobal)' not used} \
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-comment "parameter unused but required to maintain uniform interface"

‎hw/ip/prim_asap7/lint/prim_asap7_clock_inv.vlt‎

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// Copyright lowRISC contributors (OpenTitan project).
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// Licensed under the Apache License, Version 2.0, see LICENSE for details.
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// SPDX-License-Identifier: Apache-2.0
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//
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`verilator_config
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lint_off -rule UNUSED -file "*/rtl/prim_clock_inv.sv" -match "Parameter is not used: 'HasScanMode|NoFpgaBufG'"

‎hw/ip/prim_asap7/lint/prim_asap7_clock_inv.waiver‎

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# Copyright lowRISC contributors (OpenTitan project).
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# Licensed under the Apache License, Version 2.0, see LICENSE for details.
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# SPDX-License-Identifier: Apache-2.0
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#
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# primitives: prim_clock_buf
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waive -rules PARAM_NOT_USED -location {prim_clock_inv.sv} -regexp {Parameter '(HasScanMode|NoFpgaBufG)' not used} \
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-comment "parameter unused but required to maintain uniform interface"

‎hw/ip/prim_asap7/prim_asap7.core‎

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CAPI=2:
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# Copyright lowRISC contributors (OpenTitan project).
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# Licensed under the Apache License, Version 2.0, see LICENSE for details.
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# SPDX-License-Identifier: Apache-2.0
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name: "lowrisc:prim_asap7:all"
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description: "OpenSource ASAP7 prim standard cell library: prim_asap7:* modules directly
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instantiate standard cells. Memories and pad cells are not available and map to
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generic implementations"
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filesets:
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files_rtl:
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depend:
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- lowrisc:prim_asap7:and2
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- lowrisc:prim_asap7:buf
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- lowrisc:prim_asap7:clock_buf
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- lowrisc:prim_generic:clock_div
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- lowrisc:prim_asap7:clock_gating
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- lowrisc:prim_asap7:clock_inv
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- lowrisc:prim_asap7:clock_mux2
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- lowrisc:prim_asap7:flop
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- lowrisc:prim_generic:flop_2sync
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- lowrisc:prim_asap7:flop_en
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- lowrisc:prim_generic:pad_attr
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- lowrisc:prim_generic:pad_wrapper
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- lowrisc:prim_generic:ram_1p
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- lowrisc:prim_generic:ram_1r1w
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- lowrisc:prim_generic:ram_2p
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- lowrisc:prim_generic:rom
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- lowrisc:prim_generic:usb_diff_rx
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- lowrisc:prim_asap7:xnor2
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- lowrisc:prim_asap7:xor2
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- lowrisc:prim_asap7:flop_no_rst
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# Note that flash is a macro that depends on IPs, so they are not
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# included here. They must be brought in explicitly.
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# - lowrisc:prim_generic:flash
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mapping:
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"lowrisc:prim:and2" : "lowrisc:prim_asap7:and2"
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"lowrisc:prim:buf" : "lowrisc:prim_asap7:buf"
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"lowrisc:prim:clock_buf" : "lowrisc:prim_asap7:clock_buf"
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"lowrisc:prim:clock_div" : "lowrisc:prim_generic:clock_div"
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"lowrisc:prim:clock_gating" : "lowrisc:prim_asap7:clock_gating"
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"lowrisc:prim:clock_inv" : "lowrisc:prim_asap7:clock_inv"
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"lowrisc:prim:clock_mux2" : "lowrisc:prim_asap7:clock_mux2"
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"lowrisc:prim:flop" : "lowrisc:prim_asap7:flop"
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"lowrisc:prim:flop_2sync" : "lowrisc:prim_generic:flop_2sync"
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"lowrisc:prim:flop_en" : "lowrisc:prim_asap7:flop_en"
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"lowrisc:prim:pad_attr" : "lowrisc:prim_generic:pad_attr"
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"lowrisc:prim:pad_wrapper" : "lowrisc:prim_generic:pad_wrapper"
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"lowrisc:prim:ram_1p" : "lowrisc:prim_generic:ram_1p"
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"lowrisc:prim:ram_1r1w" : "lowrisc:prim_generic:ram_1r1w"
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"lowrisc:prim:ram_2p" : "lowrisc:prim_generic:ram_2p"
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"lowrisc:prim:rom" : "lowrisc:prim_generic:rom"
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"lowrisc:prim:usb_diff_rx" : "lowrisc:prim_generic:usb_diff_rx"
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"lowrisc:prim:xnor2" : "lowrisc:prim_asap7:xnor2"
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"lowrisc:prim:xor2" : "lowrisc:prim_asap7:xor2"
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"lowrisc:prim:flop_no_rst" : "lowrisc:prim_asap7:flop_no_rst"
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# Flash is a good canditate to be removed from the prims and become a macro like OTP.
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# TODO(#27042): When this is done, it should be removed from this mapping.
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"lowrisc:prim:flash": "lowrisc:prim_generic:flash"
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targets:
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default:
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filesets:
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- files_rtl

‎hw/ip/prim_asap7/prim_asap7_and2.core‎

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CAPI=2:
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# Copyright lowRISC contributors (OpenTitan project).
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# Licensed under the Apache License, Version 2.0, see LICENSE for details.
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# SPDX-License-Identifier: Apache-2.0
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name: "lowrisc:prim_asap7:and2"
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description: "asap7 instance of a 2-input and gate"
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virtual:
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- lowrisc:prim:and2
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filesets:
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files_rtl:
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files:
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- rtl/prim_and2.sv
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file_type: systemVerilogSource
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files_verilator_waiver:
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depend:
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# common waivers
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- lowrisc:lint:common
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files_ascentlint_waiver:
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depend:
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# common waivers
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- lowrisc:lint:common
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files_veriblelint_waiver:
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depend:
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# common waivers
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- lowrisc:lint:common
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targets:
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default:
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filesets:
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- tool_verilator ? (files_verilator_waiver)
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- tool_ascentlint ? (files_ascentlint_waiver)
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- tool_veriblelint ? (files_veriblelint_waiver)
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- files_rtl

‎hw/ip/prim_asap7/prim_asap7_buf.core‎

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CAPI=2:
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# Copyright lowRISC contributors (OpenTitan project).
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# Licensed under the Apache License, Version 2.0, see LICENSE for details.
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# SPDX-License-Identifier: Apache-2.0
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name: "lowrisc:prim_asap7:buf"
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description: "asap7 instance of a buffer"
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virtual:
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- lowrisc:prim:buf
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filesets:
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files_rtl:
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files:
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- rtl/prim_buf.sv
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file_type: systemVerilogSource
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files_verilator_waiver:
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depend:
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# common waivers
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- lowrisc:lint:common
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files_ascentlint_waiver:
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depend:
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# common waivers
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- lowrisc:lint:common
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files_veriblelint_waiver:
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depend:
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# common waivers
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- lowrisc:lint:common
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targets:
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default:
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filesets:
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- tool_verilator ? (files_verilator_waiver)
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- tool_ascentlint ? (files_ascentlint_waiver)
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- tool_veriblelint ? (files_veriblelint_waiver)
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- files_rtl

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