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dimamali |
------------------------------------------------------------------------------
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-- This file is a part of the GRLIB VHDL IP LIBRARY
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-- Copyright (C) 2003, Gaisler Research
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--
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-- This program is free software; you can redistribute it and/or modify
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-- it under the terms of the GNU General Public License as published by
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-- the Free Software Foundation; either version 2 of the License, or
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-- (at your option) any later version.
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--
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-- This program is distributed in the hope that it will be useful,
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- GNU General Public License for more details.
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--
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-- You should have received a copy of the GNU General Public License
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-- along with this program; if not, write to the Free Software
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-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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-----------------------------------------------------------------------------
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-- Entity: ahbrep
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-- File: ahbrep.vhd
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-- Author: Jiri Gaisler - Gaisler Reserch
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-- Description: Test report module with AHB interface
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------------------------------------------------------------------------------
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library ieee;
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use ieee.std_logic_1164.all;
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library gaisler;
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use gaisler.sim.all;
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library grlib;
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use grlib.stdlib.all;
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use grlib.stdio.all;
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use grlib.devices.all;
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use grlib.amba.all;
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use std.textio.all;
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entity ahbrep is
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generic (
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hindex : integer := 0;
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haddr : integer := 0;
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hmask : integer := 16#fff#;
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halt : integer := 1);
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port (
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rst : in std_ulogic;
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clk : in std_ulogic;
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ahbsi : in ahb_slv_in_type;
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ahbso : out ahb_slv_out_type
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);
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end;
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architecture rtl of ahbrep is
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constant abits : integer := 31;
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constant hconfig : ahb_config_type := (
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4 => ahb_membar(haddr, '0', '0', hmask),
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others => zero32);
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type reg_type is record
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hwrite : std_ulogic;
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hsel : std_ulogic;
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haddr : std_logic_vector(31 downto 0);
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htrans : std_logic_vector(1 downto 0);
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end record;
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signal r, rin : reg_type;
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begin
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ahbso.hresp <= "00";
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ahbso.hsplit <= (others => '0');
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ahbso.hirq <= (others => '0');
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ahbso.hcache <= '1';
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ahbso.hconfig <= hconfig;
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ahbso.hindex <= hindex;
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ahbso.hready <= '1';
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log : process(clk, ahbsi )
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variable errno, errcnt, subtest, vendorid, deviceid : integer;
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variable addr : std_logic_vector(21 downto 2);
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variable v : reg_type;
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begin
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if falling_edge(clk) then
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if (ahbsi.hready = '1') then
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v.haddr := ahbsi.haddr; v.hsel := ahbsi.hsel(hindex);
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v.hwrite := ahbsi.hwrite; v.htrans := ahbsi.htrans;
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end if;
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if (r.hsel and r.htrans(1) and r.hwrite and rst) = '1' then
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case r.haddr(7 downto 2) is
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when "000000" =>
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vendorid := conv_integer(ahbsi.hwdata(31 downto 24));
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deviceid := conv_integer(ahbsi.hwdata(23 downto 12));
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print(iptable(vendorid).device_table(deviceid));
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when "000001" =>
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errno := conv_integer(ahbsi.hwdata(15 downto 0));
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if (halt = 1) then
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assert false
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report "test failed, error (" & tost(errno) & ")"
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severity failure;
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else
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assert false
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report "test failed, error (" & tost(errno) & ")"
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severity warning;
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end if;
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when "000010" =>
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subtest := conv_integer(ahbsi.hwdata(7 downto 0));
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if vendorid = VENDOR_GAISLER then
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case deviceid is
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when GAISLER_LEON3 => leon3_subtest(subtest);
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when GAISLER_FTMCTRL => mctrl_subtest(subtest);
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when GAISLER_GPTIMER => gptimer_subtest(subtest);
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when GAISLER_LEON3DSU => dsu3_subtest(subtest);
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when GAISLER_SPW => spw_subtest(subtest);
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when GAISLER_SPICTRL => spictrl_subtest(subtest);
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when GAISLER_I2CMST => i2cmst_subtest(subtest);
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when GAISLER_UHCI => uhc_subtest(subtest);
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when GAISLER_EHCI => ehc_subtest(subtest);
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when GAISLER_IRQMP => irqmp_subtest(subtest);
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when GAISLER_SPIMCTRL => spimctrl_subtest(subtest);
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when GAISLER_SVGACTRL => svgactrl_subtest(subtest);
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when others =>
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print (" subtest " & tost(subtest));
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end case;
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elsif vendorid = VENDOR_ESA then
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case deviceid is
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when ESA_LEON2 => leon3_subtest(subtest);
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when ESA_MCTRL => mctrl_subtest(subtest);
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when ESA_TIMER => gptimer_subtest(subtest);
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when others =>
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print ("subtest " & tost(subtest));
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end case;
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else
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print ("subtest " & tost(subtest));
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end if;
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when "000100" =>
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print ("");
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print ("**** GRLIB system test starting ****");
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errcnt := 0;
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when "000101" =>
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if errcnt = 0 then
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print ("Test passed, halting with IU error mode");
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elsif errcnt = 1 then
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print ("1 error detected, halting with IU error mode");
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else
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print (tost(errcnt) & " errors detected, halting with IU error mode");
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end if;
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print ("");
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when others =>
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end case;
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end if;
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end if;
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rin <= v;
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end process;
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reg : process (clk)
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begin
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if rising_edge(clk) then r <= rin; end if;
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end process;
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-- pragma translate_off
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bootmsg : report_version
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generic map ("testmod" & tost(hindex) & ": Test report module");
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-- pragma translate_on
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end;
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