doom_riscv/projects/riscv_usb/rtl/boards.vh

/*
 * boards.vh
 *
 * vim: ts=4 sw=4 syntax=verilog
 *
 * Copyright (C) 2020  Sylvain Munaut <tnt@246tNt.com>
 * All rights reserved.
 *
 * BSD 3-clause, see LICENSE.bsd
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the <organization> nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

`ifdef BOARD_BITSY_V0
	// 1bitsquared iCEbreaker bitsy prototypes (v0.x)
	`define HAS_PSRAM
`elsif BOARD_BITSY_V1
	// 1bitsquared iCEbreaker bitsy prod (v1.x)
	`define HAS_PSRAM
`elsif BOARD_ICEBREAKER
	// 1bitsquared iCEbreaker
	`define HAS_PSRAM
`endif


// Defaults
	// PLL params 12M input, 48M output
`ifndef PLL_CUSTOM
	`define PLL_DIVR 4'b0000
	`define PLL_DIVF 7'b0111111
	`define PLL_DIVQ 3'b100
	`define PLL_FILTER_RANGE 3'b001
`endif