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caravel/verilog/rtl/user_defines.v

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Implemented a system for setting the GPIO power-on defaults through via programming. The values for each of the GPIOs at power-up are defined in the "user_defines.v" file. For the verilog, they are applied as parameters. For the layout, they will need to be separately defined cells for each of the GPIOs, or at least for each set of unique default values.
2021-10-23 16:18:30 -05:00
// SPDX-FileCopyrightText: 2020 Efabless Corporation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// SPDX-License-Identifier: Apache-2.0
`default_nettype none
Split the layout of the GPIO defaults block into three versions, for the three parameterized values used in the RTL verilog. Modified the "user_defines.v" file to create verilog definitions that match the C-style definitions from "defs.h", for convenience/simplicity.
2021-11-06 12:28:26 -05:00
`ifndef __USER_DEFINES_H
Implemented a system for setting the GPIO power-on defaults through via programming. The values for each of the GPIOs at power-up are defined in the "user_defines.v" file. For the verilog, they are applied as parameters. For the layout, they will need to be separately defined cells for each of the GPIOs, or at least for each set of unique default values.
2021-10-23 16:18:30 -05:00
// User GPIO initial configuration parameters
Split the layout of the GPIO defaults block into three versions, for the three parameterized values used in the RTL verilog. Modified the "user_defines.v" file to create verilog definitions that match the C-style definitions from "defs.h", for convenience/simplicity.
2021-11-06 12:28:26 -05:00
`define __USER_DEFINES_H
// Useful GPIO mode values. These match the names used in defs.h.
`define GPIO_MODE_MGMT_STD_INPUT_NOPULL 13'h0403
`define GPIO_MODE_MGMT_STD_INPUT_PULLDOWN 13'h0803
`define GPIO_MODE_MGMT_STD_INPUT_PULLUP 13'h0c03
`define GPIO_MODE_MGMT_STD_OUTPUT 13'h1809
`define GPIO_MODE_MGMT_STD_BIDIRECTIONAL 13'h1801
`define GPIO_MODE_MGMT_STD_ANALOG 13'h000b
`define GPIO_MODE_USER_STD_INPUT_NOPULL 13'h0402
`define GPIO_MODE_USER_STD_INPUT_PULLDOWN 13'h0802
`define GPIO_MODE_USER_STD_INPUT_PULLUP 13'h0c02
`define GPIO_MODE_USER_STD_OUTPUT 13'h1808
`define GPIO_MODE_USER_STD_BIDIRECTIONAL 13'h1800
`define GPIO_MODE_USER_STD_OUT_MONITORED 13'h1802
`define GPIO_MODE_USER_STD_ANALOG 13'h000a
Implemented a system for setting the GPIO power-on defaults through via programming. The values for each of the GPIOs at power-up are defined in the "user_defines.v" file. For the verilog, they are applied as parameters. For the layout, they will need to be separately defined cells for each of the GPIOs, or at least for each set of unique default values.
2021-10-23 16:18:30 -05:00
Removed unused definitions from user_defines.v, and added more explanatory comments.
2021-10-25 15:36:18 -05:00
// The power-on configuration for GPIO 0 to 4 is fixed and cannot be
// modified (allowing the SPI and debug to always be accessible unless
// overridden by a flash program).
Split the layout of the GPIO defaults block into three versions, for the three parameterized values used in the RTL verilog. Modified the "user_defines.v" file to create verilog definitions that match the C-style definitions from "defs.h", for convenience/simplicity.
2021-11-06 12:28:26 -05:00
// The values below can be any of the standard types defined above,
// or they can be any 13-bit value if the user wants a non-standard
// startup state for the GPIO. By default, every GPIO from 5 to 37
// is set to power up as an input controlled by the management SoC.
// Users may want to redefine these so that the user project powers
// up in a state that can be used immediately without depending on
// the management SoC to run a startup program to configure the GPIOs.
`define USER_CONFIG_GPIO_5_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
`define USER_CONFIG_GPIO_6_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
`define USER_CONFIG_GPIO_7_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
`define USER_CONFIG_GPIO_8_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
`define USER_CONFIG_GPIO_9_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
`define USER_CONFIG_GPIO_10_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
`define USER_CONFIG_GPIO_11_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
`define USER_CONFIG_GPIO_12_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
`define USER_CONFIG_GPIO_13_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
`define USER_CONFIG_GPIO_14_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
Removed unused definitions from user_defines.v, and added more explanatory comments.
2021-10-25 15:36:18 -05:00
// Configurations of GPIO 15 to 25 are used on caravel but not caravan.
Split the layout of the GPIO defaults block into three versions, for the three parameterized values used in the RTL verilog. Modified the "user_defines.v" file to create verilog definitions that match the C-style definitions from "defs.h", for convenience/simplicity.
2021-11-06 12:28:26 -05:00
`define USER_CONFIG_GPIO_15_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
`define USER_CONFIG_GPIO_16_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
`define USER_CONFIG_GPIO_17_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
`define USER_CONFIG_GPIO_18_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
`define USER_CONFIG_GPIO_19_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
`define USER_CONFIG_GPIO_20_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
`define USER_CONFIG_GPIO_21_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
`define USER_CONFIG_GPIO_22_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
`define USER_CONFIG_GPIO_23_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
`define USER_CONFIG_GPIO_24_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
`define USER_CONFIG_GPIO_25_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
`define USER_CONFIG_GPIO_26_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
`define USER_CONFIG_GPIO_27_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
`define USER_CONFIG_GPIO_28_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
`define USER_CONFIG_GPIO_29_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
`define USER_CONFIG_GPIO_30_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
`define USER_CONFIG_GPIO_31_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
`define USER_CONFIG_GPIO_32_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
`define USER_CONFIG_GPIO_33_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
`define USER_CONFIG_GPIO_34_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
`define USER_CONFIG_GPIO_35_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
`define USER_CONFIG_GPIO_36_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
`define USER_CONFIG_GPIO_37_INIT `GPIO_MODE_MGMT_STD_INPUT_NOPULL
`endif // __USER_DEFINES_H