Thorsten Knoll | b8f623b | 2022-12-04 09:20:03 +0100 | [diff] [blame^] | 1 | // SPDX-FileCopyrightText: 2020 Efabless Corporation |
| 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | // you may not use this file except in compliance with the License. |
| 5 | // You may obtain a copy of the License at |
| 6 | // |
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | // |
| 9 | // Unless required by applicable law or agreed to in writing, software |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | // See the License for the specific language governing permissions and |
| 13 | // limitations under the License. |
| 14 | // SPDX-License-Identifier: Apache-2.0 |
| 15 | |
| 16 | `default_nettype none |
| 17 | |
| 18 | `ifndef __USER_DEFINES_H |
| 19 | // User GPIO initial configuration parameters |
| 20 | `define __USER_DEFINES_H |
| 21 | |
| 22 | // deliberately erroneous placeholder value; user required to config GPIO's to other |
| 23 | `define GPIO_MODE_INVALID 13'hXXXX |
| 24 | |
| 25 | // Authoritive source of these MODE defs is: caravel/verilog/rtl/user_defines.v |
| 26 | // Useful GPIO mode values. These match the names used in defs.h. |
| 27 | // |
| 28 | |
| 29 | `define GPIO_MODE_MGMT_STD_INPUT_NOPULL 10'h007 |
| 30 | `define GPIO_MODE_MGMT_STD_INPUT_PULLDOWN 10'h047 |
| 31 | `define GPIO_MODE_MGMT_STD_INPUT_PULLUP 10'h087 |
| 32 | `define GPIO_MODE_MGMT_STD_OUTPUT 10'h00b |
| 33 | `define GPIO_MODE_MGMT_STD_BIDIRECTIONAL 10'h009 |
| 34 | |
| 35 | `define GPIO_MODE_USER_STD_INPUT_NOPULL 10'h006 |
| 36 | `define GPIO_MODE_USER_STD_INPUT_PULLDOWN 10'h046 |
| 37 | `define GPIO_MODE_USER_STD_INPUT_PULLUP 10'h086 |
| 38 | `define GPIO_MODE_USER_STD_OUTPUT 10'h00a |
| 39 | `define GPIO_MODE_USER_STD_BIDIRECTIONAL 10'h008 |
| 40 | |
| 41 | // The power-on configuration for GPIO 0 to 4 is fixed and cannot be |
| 42 | // modified (allowing the SPI and debug to always be accessible unless |
| 43 | // overridden by a flash program). |
| 44 | |
| 45 | // The values below can be any of the standard types defined above, |
| 46 | // or they can be any 13-bit value if the user wants a non-standard |
| 47 | // startup state for the GPIO. By default, every GPIO from 5 to 37 |
| 48 | // is set to power up as an input controlled by the management SoC. |
| 49 | // Users may want to redefine these so that the user project powers |
| 50 | // up in a state that can be used immediately without depending on |
| 51 | // the management SoC to run a startup program to configure the GPIOs. |
| 52 | |
| 53 | // tiny_user_project i/o |
| 54 | // generated by configure.py |
| 55 | {% for n in range(5, 38) -%} |
| 56 | {%- if io_in_range[0] <= n < io_in_range[1] %} |
| 57 | `define USER_CONFIG_GPIO_{{ n }}_INIT `GPIO_MODE_USER_STD_INPUT_NOPULL |
| 58 | {%- elif io_out_range[0] <= n < io_out_range[1] %} |
| 59 | `define USER_CONFIG_GPIO_{{ n }}_INIT `GPIO_MODE_USER_STD_OUTPUT |
| 60 | {%- else %} |
| 61 | `define USER_CONFIG_GPIO_{{ n }}_INIT `GPIO_MODE_USER_STD_INPUT_PULLDOWN |
| 62 | {%- endif -%} |
| 63 | {% endfor %} |
| 64 | |
| 65 | `endif // __USER_DEFINES_H |