mirror of
https://github.com/Silicon1602/srdl2sv.git
synced 2024-12-22 23:08:39 +00:00
501 lines
17 KiB
Systemverilog
501 lines
17 KiB
Systemverilog
/*****************************************************************
|
|
*
|
|
* ███████╗██████╗ ██████╗ ██╗ ██████╗ ███████╗██╗ ██╗
|
|
* ██╔════╝██╔══██╗██╔══██╗██║ ╚════██╗██╔════╝██║ ██║
|
|
* ███████╗██████╔╝██║ ██║██║ █████╔╝███████╗██║ ██║
|
|
* ╚════██║██╔══██╗██║ ██║██║ ██╔═══╝ ╚════██║╚██╗ ██╔╝
|
|
* ███████║██║ ██║██████╔╝███████╗███████╗███████║ ╚████╔╝
|
|
* ╚══════╝╚═╝ ╚═╝╚═════╝ ╚══════╝╚══════╝╚══════╝ ╚═══╝
|
|
*
|
|
* The present RTL was generated by srdl2sv v0.01. The RTL and all
|
|
* templates the RTL is derived from are licensed under the MIT
|
|
* license. The license is shown below.
|
|
*
|
|
* srdl2sv itself is licensed under GPLv3.
|
|
*
|
|
* Maintainer : Dennis Potter <dennis@dennispotter.eu>
|
|
* Report Bugs: https://github.com/Silicon1602/srdl2sv/issues
|
|
*
|
|
* ===GENERATION INFORMATION======================================
|
|
*
|
|
* Generation information:
|
|
* - User: : dpotter
|
|
* - Time : November 04 2021 23:31:13
|
|
* - Path : /home/dpotter/srdl2sv/examples/parameters
|
|
* - RDL file : ['parameters.rdl']
|
|
* - Hostname : ArchXPS
|
|
*
|
|
* RDL include directories:
|
|
* -
|
|
*
|
|
* Commandline arguments to srdl2sv:
|
|
* - Ouput Directory : srdl2sv_out
|
|
* - Stream Log Level : INFO
|
|
* - File Log Level : NONE
|
|
* - Use Real Tabs : False
|
|
* - Tab Width : 4
|
|
* - Enums Enabled : True
|
|
* - Unpacked I/Os : True
|
|
* - Register Bus Type: amba3ahblite
|
|
* - Address width : 32
|
|
* - Byte enables : True
|
|
* - Descriptions : {'AddrMap': False, 'RegFile': False, 'Memory': False, 'Register': False, 'Field': False}
|
|
*
|
|
* ===LICENSE OF PAREMETERS.SV=====================================
|
|
*
|
|
* Copyright 2021 Dennis Potter <dennis@dennispotter.eu>
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person
|
|
* obtaining a copy of this software and associated documentation
|
|
* files (the "Software"), to deal in the Software without
|
|
* restriction, including without limitation the rights to use,
|
|
* copy, modify, merge, publish, distribute, sublicense, and/or
|
|
* sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following
|
|
* conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be
|
|
* included in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
|
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
|
|
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
|
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
|
* OTHER DEALINGS IN THE SOFTWARE.
|
|
****************************************************************/
|
|
module paremeters
|
|
|
|
(
|
|
// Resets
|
|
input rst_async_n,
|
|
|
|
// Inputs
|
|
input clk ,
|
|
input HRESETn ,
|
|
input [31:0] HADDR ,
|
|
input HWRITE ,
|
|
input [2:0] HSIZE ,
|
|
input [3:0] HPROT ,
|
|
input [1:0] HTRANS ,
|
|
input [32-1:0] HWDATA ,
|
|
input HSEL ,
|
|
input [31:0] reg32__data_in ,
|
|
input [31:0] reg32_arr__data_in[8],
|
|
input [15:0] reg16__data_in ,
|
|
input [7:0] reg8__data_in ,
|
|
|
|
// Outputs
|
|
output HREADYOUT ,
|
|
output HRESP ,
|
|
output [32-1:0] HRDATA ,
|
|
output [31:0] reg32__data_r ,
|
|
output [31:0] reg32_arr__data_r[8],
|
|
output [15:0] reg16__data_r ,
|
|
output [7:0] reg8__data_r
|
|
);
|
|
|
|
|
|
// Internal signals
|
|
srdl2sv_widget_if #(.ADDR_W (32), .DATA_W(32)) widget_if;
|
|
|
|
/*******************************************************************
|
|
* AMBA 3 AHB Lite Widget
|
|
* ======================
|
|
* Naming conventions
|
|
* - widget_if -> SystemVerilog interface to between widgets
|
|
* and the internal srdl2sv registers.
|
|
* - H* -> Signals as defined in AMBA3 AHB Lite
|
|
* specification
|
|
* - clk -> Clock that drives registers and the bus
|
|
*******************************************************************/
|
|
srdl2sv_amba3ahblite
|
|
#(.FLOP_REGISTER_IF (0),
|
|
.BUS_BITS (32),
|
|
.NO_BYTE_ENABLE (0))
|
|
srdl2sv_amba3ahblite_inst
|
|
(// Bus protocol
|
|
.HRESETn,
|
|
.HCLK (clk),
|
|
.HADDR,
|
|
.HWRITE,
|
|
.HSIZE,
|
|
.HPROT,
|
|
.HTRANS,
|
|
.HWDATA,
|
|
.HSEL,
|
|
|
|
.HREADYOUT,
|
|
.HRESP,
|
|
.HRDATA,
|
|
|
|
// Interface to internal logic
|
|
.widget_if);
|
|
|
|
genvar gv_a;
|
|
|
|
|
|
/*******************************************************************
|
|
/*******************************************************************
|
|
/* REGISTER : reg32
|
|
/* DIMENSION : 0
|
|
/* DEPTHS (per dimension): []
|
|
/*******************************************************************
|
|
/*******************************************************************/
|
|
|
|
logic reg32_active ;
|
|
logic reg32_sw_wr ;
|
|
logic [31:0] reg32_data_mux_in;
|
|
logic reg32_rdy_mux_in ;
|
|
logic reg32_err_mux_in ;
|
|
logic [31:0] reg32__data_q ;
|
|
|
|
|
|
// Register-activation for 'reg32'
|
|
assign reg32_active = widget_if.addr == 0;
|
|
assign reg32_sw_wr = reg32_active && widget_if.w_vld;
|
|
|
|
//-----------------FIELD SUMMARY-----------------
|
|
// name : data (reg32[31:0])
|
|
// access : hw = rw
|
|
// sw = rw (precedence)
|
|
// reset : active_low / asynchronous
|
|
// flags : ['sw']
|
|
// external : False
|
|
// storage type : StorageType.FLOPS
|
|
//-----------------------------------------------
|
|
|
|
always_ff @(posedge clk or negedge rst_async_n)
|
|
if (!rst_async_n)
|
|
begin
|
|
reg32__data_q <= 32'd0;
|
|
end
|
|
else
|
|
begin
|
|
if (reg32_sw_wr)
|
|
begin
|
|
if (widget_if.byte_en[0])
|
|
reg32__data_q[7:0] <= widget_if.w_data[7:0];
|
|
if (widget_if.byte_en[1])
|
|
reg32__data_q[15:8] <= widget_if.w_data[15:8];
|
|
if (widget_if.byte_en[2])
|
|
reg32__data_q[23:16] <= widget_if.w_data[23:16];
|
|
if (widget_if.byte_en[3])
|
|
reg32__data_q[31:24] <= widget_if.w_data[31:24];
|
|
end
|
|
else
|
|
// we or wel property not set
|
|
reg32__data_q <= reg32__data_in;
|
|
end // of reg32__data's always_ff
|
|
|
|
// Connect register to hardware output port
|
|
assign reg32__data_r = reg32__data_q;
|
|
|
|
|
|
|
|
|
|
/**************************************
|
|
* Assign all fields to signal to Mux *
|
|
**************************************/
|
|
// Assign all fields. Fields that are not readable are tied to 0.
|
|
assign reg32_data_mux_in = {reg32__data_q};
|
|
|
|
// Internal registers are ready immediately
|
|
assign reg32_rdy_mux_in = 1'b1;
|
|
|
|
// Return an error if *no* read and *no* write was succesful. If some bits
|
|
// cannot be read/written but others are succesful, don't return and error
|
|
// Hence, as long as one action can be succesful, no error will be returned.
|
|
assign reg32_err_mux_in = !((widget_if.r_vld && (|widget_if.byte_en[3:0])) || (widget_if.w_vld && (|widget_if.byte_en[3:0])));
|
|
|
|
/*******************************************************************
|
|
/*******************************************************************
|
|
/* REGISTER : reg32_arr
|
|
/* DIMENSION : 1
|
|
/* DEPTHS (per dimension): [8]
|
|
/*******************************************************************
|
|
/*******************************************************************/
|
|
|
|
logic reg32_arr_active [8];
|
|
logic reg32_arr_sw_wr [8];
|
|
logic [31:0] reg32_arr_data_mux_in[8];
|
|
logic reg32_arr_rdy_mux_in [8];
|
|
logic reg32_arr_err_mux_in [8];
|
|
logic [31:0] reg32_arr__data_q [8];
|
|
|
|
generate
|
|
for (gv_a = 0; gv_a < 8; gv_a++)
|
|
begin
|
|
|
|
// Register-activation for 'reg32_arr'
|
|
assign reg32_arr_active[gv_a] = widget_if.addr == 4+(gv_a*4);
|
|
assign reg32_arr_sw_wr[gv_a] = reg32_arr_active[gv_a] && widget_if.w_vld;
|
|
|
|
//-----------------FIELD SUMMARY-----------------
|
|
// name : data (reg32_arr[31:0])
|
|
// access : hw = rw
|
|
// sw = rw (precedence)
|
|
// reset : active_low / asynchronous
|
|
// flags : ['sw']
|
|
// external : False
|
|
// storage type : StorageType.FLOPS
|
|
//-----------------------------------------------
|
|
|
|
always_ff @(posedge clk or negedge rst_async_n)
|
|
if (!rst_async_n)
|
|
begin
|
|
reg32_arr__data_q[gv_a] <= 32'd0;
|
|
end
|
|
else
|
|
begin
|
|
if (reg32_arr_sw_wr[gv_a])
|
|
begin
|
|
if (widget_if.byte_en[0])
|
|
reg32_arr__data_q[gv_a][7:0] <= widget_if.w_data[7:0];
|
|
if (widget_if.byte_en[1])
|
|
reg32_arr__data_q[gv_a][15:8] <= widget_if.w_data[15:8];
|
|
if (widget_if.byte_en[2])
|
|
reg32_arr__data_q[gv_a][23:16] <= widget_if.w_data[23:16];
|
|
if (widget_if.byte_en[3])
|
|
reg32_arr__data_q[gv_a][31:24] <= widget_if.w_data[31:24];
|
|
end
|
|
else
|
|
// we or wel property not set
|
|
reg32_arr__data_q[gv_a] <= reg32_arr__data_in[gv_a];
|
|
end // of reg32_arr__data's always_ff
|
|
|
|
// Connect register to hardware output port
|
|
assign reg32_arr__data_r[gv_a] = reg32_arr__data_q[gv_a];
|
|
|
|
|
|
|
|
|
|
/**************************************
|
|
* Assign all fields to signal to Mux *
|
|
**************************************/
|
|
// Assign all fields. Fields that are not readable are tied to 0.
|
|
assign reg32_arr_data_mux_in[gv_a] = {reg32_arr__data_q[gv_a]};
|
|
|
|
// Internal registers are ready immediately
|
|
assign reg32_arr_rdy_mux_in[gv_a] = 1'b1;
|
|
|
|
// Return an error if *no* read and *no* write was succesful. If some bits
|
|
// cannot be read/written but others are succesful, don't return and error
|
|
// Hence, as long as one action can be succesful, no error will be returned.
|
|
assign reg32_arr_err_mux_in[gv_a] = !((widget_if.r_vld && (|widget_if.byte_en[3:0])) || (widget_if.w_vld && (|widget_if.byte_en[3:0])));
|
|
end // of for loop with iterator gv_a
|
|
|
|
endgenerate
|
|
|
|
|
|
/*******************************************************************
|
|
/*******************************************************************
|
|
/* REGISTER : reg16
|
|
/* DIMENSION : 0
|
|
/* DEPTHS (per dimension): []
|
|
/*******************************************************************
|
|
/*******************************************************************/
|
|
|
|
logic reg16_active ;
|
|
logic reg16_sw_wr ;
|
|
logic [15:0] reg16_data_mux_in;
|
|
logic reg16_rdy_mux_in ;
|
|
logic reg16_err_mux_in ;
|
|
logic [15:0] reg16__data_q ;
|
|
|
|
|
|
// Register-activation for 'reg16'
|
|
assign reg16_active = widget_if.addr == 36;
|
|
assign reg16_sw_wr = reg16_active && widget_if.w_vld;
|
|
|
|
//-----------------FIELD SUMMARY-----------------
|
|
// name : data (reg16[15:0])
|
|
// access : hw = rw
|
|
// sw = rw (precedence)
|
|
// reset : active_low / asynchronous
|
|
// flags : ['sw']
|
|
// external : False
|
|
// storage type : StorageType.FLOPS
|
|
//-----------------------------------------------
|
|
|
|
always_ff @(posedge clk or negedge rst_async_n)
|
|
if (!rst_async_n)
|
|
begin
|
|
reg16__data_q <= 16'd0;
|
|
end
|
|
else
|
|
begin
|
|
if (reg16_sw_wr)
|
|
begin
|
|
if (widget_if.byte_en[0])
|
|
reg16__data_q[7:0] <= widget_if.w_data[7:0];
|
|
if (widget_if.byte_en[1])
|
|
reg16__data_q[15:8] <= widget_if.w_data[15:8];
|
|
end
|
|
else
|
|
// we or wel property not set
|
|
reg16__data_q <= reg16__data_in;
|
|
end // of reg16__data's always_ff
|
|
|
|
// Connect register to hardware output port
|
|
assign reg16__data_r = reg16__data_q;
|
|
|
|
|
|
|
|
|
|
/**************************************
|
|
* Assign all fields to signal to Mux *
|
|
**************************************/
|
|
// Assign all fields. Fields that are not readable are tied to 0.
|
|
assign reg16_data_mux_in = {reg16__data_q};
|
|
|
|
// Internal registers are ready immediately
|
|
assign reg16_rdy_mux_in = 1'b1;
|
|
|
|
// Return an error if *no* read and *no* write was succesful. If some bits
|
|
// cannot be read/written but others are succesful, don't return and error
|
|
// Hence, as long as one action can be succesful, no error will be returned.
|
|
assign reg16_err_mux_in = !((widget_if.r_vld && (|widget_if.byte_en[1:0])) || (widget_if.w_vld && (|widget_if.byte_en[1:0])));
|
|
|
|
/*******************************************************************
|
|
/*******************************************************************
|
|
/* REGISTER : reg8
|
|
/* DIMENSION : 0
|
|
/* DEPTHS (per dimension): []
|
|
/*******************************************************************
|
|
/*******************************************************************/
|
|
|
|
logic reg8_active ;
|
|
logic [7:0] reg8_data_mux_in;
|
|
logic reg8_rdy_mux_in ;
|
|
logic reg8_err_mux_in ;
|
|
logic [7:0] reg8__data_q ;
|
|
|
|
|
|
// Register-activation for 'reg8'
|
|
assign reg8_active = widget_if.addr == 38;
|
|
|
|
//-----------------FIELD SUMMARY-----------------
|
|
// name : data (reg8[7:0])
|
|
// access : hw = rw
|
|
// sw = r (precedence)
|
|
// reset : active_low / asynchronous
|
|
// flags : ['sw']
|
|
// external : False
|
|
// storage type : StorageType.FLOPS
|
|
//-----------------------------------------------
|
|
|
|
always_ff @(posedge clk or negedge rst_async_n)
|
|
if (!rst_async_n)
|
|
begin
|
|
reg8__data_q <= 8'd0;
|
|
end
|
|
else
|
|
begin
|
|
// we or wel property not set
|
|
reg8__data_q <= reg8__data_in;
|
|
end // of reg8__data's always_ff
|
|
|
|
// Connect register to hardware output port
|
|
assign reg8__data_r = reg8__data_q;
|
|
|
|
|
|
|
|
|
|
/**************************************
|
|
* Assign all fields to signal to Mux *
|
|
**************************************/
|
|
// Assign all fields. Fields that are not readable are tied to 0.
|
|
assign reg8_data_mux_in = {reg8__data_q};
|
|
|
|
// Internal registers are ready immediately
|
|
assign reg8_rdy_mux_in = 1'b1;
|
|
|
|
// Return an error if *no* read and *no* write was succesful. If some bits
|
|
// cannot be read/written but others are succesful, don't return and error
|
|
// Hence, as long as one action can be succesful, no error will be returned.
|
|
assign reg8_err_mux_in = !((widget_if.r_vld && (widget_if.byte_en[0])) || (widget_if.w_vld && (1'b0)));
|
|
|
|
// Read multiplexer
|
|
always_comb
|
|
begin
|
|
unique case (1'b1)
|
|
reg32_active:
|
|
begin
|
|
widget_if.r_data = reg32_data_mux_in;
|
|
widget_if.err = reg32_err_mux_in;
|
|
widget_if.rdy = reg32_rdy_mux_in;
|
|
end
|
|
reg32_arr_active[0]:
|
|
begin
|
|
widget_if.r_data = reg32_arr_data_mux_in[0];
|
|
widget_if.err = reg32_arr_err_mux_in[0];
|
|
widget_if.rdy = reg32_arr_rdy_mux_in[0];
|
|
end
|
|
reg32_arr_active[1]:
|
|
begin
|
|
widget_if.r_data = reg32_arr_data_mux_in[1];
|
|
widget_if.err = reg32_arr_err_mux_in[1];
|
|
widget_if.rdy = reg32_arr_rdy_mux_in[1];
|
|
end
|
|
reg32_arr_active[2]:
|
|
begin
|
|
widget_if.r_data = reg32_arr_data_mux_in[2];
|
|
widget_if.err = reg32_arr_err_mux_in[2];
|
|
widget_if.rdy = reg32_arr_rdy_mux_in[2];
|
|
end
|
|
reg32_arr_active[3]:
|
|
begin
|
|
widget_if.r_data = reg32_arr_data_mux_in[3];
|
|
widget_if.err = reg32_arr_err_mux_in[3];
|
|
widget_if.rdy = reg32_arr_rdy_mux_in[3];
|
|
end
|
|
reg32_arr_active[4]:
|
|
begin
|
|
widget_if.r_data = reg32_arr_data_mux_in[4];
|
|
widget_if.err = reg32_arr_err_mux_in[4];
|
|
widget_if.rdy = reg32_arr_rdy_mux_in[4];
|
|
end
|
|
reg32_arr_active[5]:
|
|
begin
|
|
widget_if.r_data = reg32_arr_data_mux_in[5];
|
|
widget_if.err = reg32_arr_err_mux_in[5];
|
|
widget_if.rdy = reg32_arr_rdy_mux_in[5];
|
|
end
|
|
reg32_arr_active[6]:
|
|
begin
|
|
widget_if.r_data = reg32_arr_data_mux_in[6];
|
|
widget_if.err = reg32_arr_err_mux_in[6];
|
|
widget_if.rdy = reg32_arr_rdy_mux_in[6];
|
|
end
|
|
reg32_arr_active[7]:
|
|
begin
|
|
widget_if.r_data = reg32_arr_data_mux_in[7];
|
|
widget_if.err = reg32_arr_err_mux_in[7];
|
|
widget_if.rdy = reg32_arr_rdy_mux_in[7];
|
|
end
|
|
reg16_active:
|
|
begin
|
|
widget_if.r_data = reg16_data_mux_in;
|
|
widget_if.err = reg16_err_mux_in;
|
|
widget_if.rdy = reg16_rdy_mux_in;
|
|
end
|
|
reg8_active:
|
|
begin
|
|
widget_if.r_data = reg8_data_mux_in;
|
|
widget_if.err = reg8_err_mux_in;
|
|
widget_if.rdy = reg8_rdy_mux_in;
|
|
end
|
|
default:
|
|
begin
|
|
// If the address is not found, return an error
|
|
widget_if.r_data = 0;
|
|
widget_if.err = 1;
|
|
widget_if.rdy = widget_if.r_vld || widget_if.w_vld;
|
|
end
|
|
endcase
|
|
end
|
|
endmodule
|