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Update APB_TIME_MANAGEMENT :...
Update APB_TIME_MANAGEMENT : If LFR is desynchronized, the LFR is resynchronized only if there is a tick (or soft_tick) and a new TCU The TCU is a vector of 31 bits (30 downto 0). Now, there is a ctrl bit to soft reset the apb_time_management. After a reset (and a soft reset), the APB_TM is desynchronized and the CT value is 0x80000000.
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leon3mp.vhd
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Mise a jour Projets blanc
 r100 -----------------------------------------------------------------------------
-- LEON3 Demonstration design
-- Copyright (C) 2004 Jiri Gaisler, Gaisler Research
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; either version 2 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
library grlib;
use grlib.amba.all;
use grlib.stdlib.all;
library techmap;
use techmap.gencomp.all;
library gaisler;
use gaisler.memctrl.all;
use gaisler.leon3.all;
use gaisler.uart.all;
use gaisler.misc.all;
library esa;
use esa.memoryctrl.all;
use work.config.all;
library lpp;
use lpp.lpp_amba.all;
entity leon3mp is
generic (
fabtech : integer := CFG_FABTECH;
memtech : integer := CFG_MEMTECH;
padtech : integer := CFG_PADTECH;
clktech : integer := CFG_CLKTECH;
disas : integer := CFG_DISAS; -- Enable disassembly to console
dbguart : integer := CFG_DUART; -- Print UART on console
pclow : integer := CFG_PCLOW
);
port (
clk50MHz : in std_ulogic;
reset : in std_ulogic;
ramclk : out std_logic;
ahbrxd : in std_ulogic; -- DSU rx data
ahbtxd : out std_ulogic; -- DSU tx data
dsubre : in std_ulogic;
dsuact : out std_ulogic;
urxd1 : in std_ulogic; -- UART1 rx data
utxd1 : out std_ulogic; -- UART1 tx data
errorn : out std_ulogic;
address : out std_logic_vector(18 downto 0);
data : inout std_logic_vector(31 downto 0);
gpio : inout std_logic_vector(6 downto 0); -- I/O port
ramben : out std_logic_vector (3 downto 0);
ramsn : out std_logic;
romsn : out std_logic;
iosn : out std_logic;
rwen : out std_logic;
oen : out std_ulogic;
ramoen : out std_logic;
writen : out std_ulogic;
sram_adv : out std_logic;
sram_pwrdwn : out std_logic;
sram_gwen : out std_logic;
sram_adsc : out std_logic;
sram_adsp : out std_logic;
---------------------------------------------------------------------
--- AJOUT TEST ------------------------In/Out-----------------------
---------------------------------------------------------------------
---------------------------------------------------------------------
led : out std_logic_vector(5 downto 0)
);
end;
architecture Behavioral of leon3mp is
constant maxahbmsp : integer := CFG_NCPU+CFG_AHB_UART+
CFG_GRETH+CFG_AHB_JTAG;
constant maxahbm : integer := maxahbmsp;
--Clk & Rst g�n�
signal vcc : std_logic_vector(4 downto 0);
signal gnd : std_logic_vector(4 downto 0);
signal resetnl : std_ulogic;
signal clk2x : std_ulogic;
signal lclk : std_ulogic;
signal lclk2x : std_ulogic;
signal clkm : std_ulogic;
signal rstn : std_ulogic;
signal rstraw : std_ulogic;
signal pciclk : std_ulogic;
signal sdclkl : std_ulogic;
signal cgi : clkgen_in_type;
signal cgo : clkgen_out_type;
--- AHB / APB
signal apbi : apb_slv_in_type;
signal apbo : apb_slv_out_vector := (others => apb_none);
signal ahbsi : ahb_slv_in_type;
signal ahbso : ahb_slv_out_vector := (others => ahbs_none);
signal ahbmi : ahb_mst_in_type;
signal ahbmo : ahb_mst_out_vector := (others => ahbm_none);
--UART
signal ahbuarti : uart_in_type;
signal ahbuarto : uart_out_type;
signal apbuarti : uart_in_type;
signal apbuarto : uart_out_type;
--MEM CTRLR
signal memi : memory_in_type;
signal memo : memory_out_type;
signal wpo : wprot_out_type;
signal sdo : sdram_out_type;
--IRQ
signal irqi : irq_in_vector(0 to CFG_NCPU-1);
signal irqo : irq_out_vector(0 to CFG_NCPU-1);
--Timer
signal gpti : gptimer_in_type;
signal gpto : gptimer_out_type;
--GPIO
signal gpioi : gpio_in_type;
signal gpioo : gpio_out_type;
--DSU
signal dbgi : l3_debug_in_vector(0 to CFG_NCPU-1);
signal dbgo : l3_debug_out_vector(0 to CFG_NCPU-1);
signal dsui : dsu_in_type;
signal dsuo : dsu_out_type;
---------------------------------------------------------------------
--- AJOUT TEST ------------------------Signaux----------------------
---------------------------------------------------------------------
---------------------------------------------------------------------
constant IOAEN : integer := CFG_CAN;
constant boardfreq : integer := 50000;
begin
---------------------------------------------------------------------
--- AJOUT TEST -------------------------------------IPs-------------
---------------------------------------------------------------------
led(1 downto 0) <= gpio(1 downto 0);
----------------------------------------------------------------------
----------------------------------------------------------------------
--- Reset and Clock generation -------------------------------------
----------------------------------------------------------------------
vcc <= (others => '1'); gnd <= (others => '0');
cgi.pllctrl <= "00"; cgi.pllrst <= rstraw;
rst0 : rstgen port map (reset, clkm, cgo.clklock, rstn, rstraw);
clk_pad : clkpad generic map (tech => padtech) port map (clk50MHz, lclk2x);
clkgen0 : clkgen -- clock generator
generic map (clktech, CFG_CLKMUL, CFG_CLKDIV, CFG_MCTRL_SDEN,
CFG_CLK_NOFB, 0, 0, 0, boardfreq, 0, 0, CFG_OCLKDIV)
port map (lclk, lclk, clkm, open, clk2x, sdclkl, pciclk, cgi, cgo);
ramclk <= clkm;
process(lclk2x)
begin
if lclk2x'event and lclk2x = '1' then
lclk <= not lclk;
end if;
end process;
----------------------------------------------------------------------
--- LEON3 processor / DSU / IRQ ------------------------------------
----------------------------------------------------------------------
l3 : if CFG_LEON3 = 1 generate
cpu : for i in 0 to CFG_NCPU-1 generate
u0 : leon3s -- LEON3 processor
generic map (i, fabtech, memtech, CFG_NWIN, CFG_DSU, CFG_FPU, CFG_V8,
0, CFG_MAC, pclow, 0, CFG_NWP, CFG_ICEN, CFG_IREPL, CFG_ISETS, CFG_ILINE,
CFG_ISETSZ, CFG_ILOCK, CFG_DCEN, CFG_DREPL, CFG_DSETS, CFG_DLINE, CFG_DSETSZ,
CFG_DLOCK, CFG_DSNOOP, CFG_ILRAMEN, CFG_ILRAMSZ, CFG_ILRAMADDR, CFG_DLRAMEN,
CFG_DLRAMSZ, CFG_DLRAMADDR, CFG_MMUEN, CFG_ITLBNUM, CFG_DTLBNUM, CFG_TLB_TYPE, CFG_TLB_REP,
CFG_LDDEL, disas, CFG_ITBSZ, CFG_PWD, CFG_SVT, CFG_RSTADDR, CFG_NCPU-1)
port map (clkm, rstn, ahbmi, ahbmo(i), ahbsi, ahbso,
irqi(i), irqo(i), dbgi(i), dbgo(i));
end generate;
errorn_pad : outpad generic map (tech => padtech) port map (errorn, dbgo(0).error);
dsugen : if CFG_DSU = 1 generate
dsu0 : dsu3 -- LEON3 Debug Support Unit
generic map (hindex => 2, haddr => 16#900#, hmask => 16#F00#,
ncpu => CFG_NCPU, tbits => 30, tech => memtech, irq => 0, kbytes => CFG_ATBSZ)
port map (rstn, clkm, ahbmi, ahbsi, ahbso(2), dbgo, dbgi, dsui, dsuo);
-- dsuen_pad : inpad generic map (tech => padtech) port map (dsuen, dsui.enable);
dsui.enable <= '1';
dsubre_pad : inpad generic map (tech => padtech) port map (dsubre, dsui.break);
dsuact_pad : outpad generic map (tech => padtech) port map (dsuact, dsuo.active);
end generate;
end generate;
nodsu : if CFG_DSU = 0 generate
ahbso(2) <= ahbs_none; dsuo.tstop <= '0'; dsuo.active <= '0';
end generate;
irqctrl : if CFG_IRQ3_ENABLE /= 0 generate
irqctrl0 : irqmp -- interrupt controller
generic map (pindex => 2, paddr => 2, ncpu => CFG_NCPU)
port map (rstn, clkm, apbi, apbo(2), irqo, irqi);
end generate;
irq3 : if CFG_IRQ3_ENABLE = 0 generate
x : for i in 0 to CFG_NCPU-1 generate
irqi(i).irl <= "0000";
end generate;
apbo(2) <= apb_none;
end generate;
----------------------------------------------------------------------
--- Memory controllers ---------------------------------------------
----------------------------------------------------------------------
sram_pwrdwn <= '0';
sram_gwen <= '1';
sram_adsc <= '0';
sram_adsp <= '1';
mctrl2 : if (CFG_MCTRL_LEON2 = 1) and (CFG_SSCTRL = 0) generate -- LEON2 memory controller
sr1 : mctrl generic map (hindex => 0, pindex => 0, paddr => 0,
srbanks => 2, sden => CFG_MCTRL_SDEN, ram8 => CFG_MCTRL_RAM8BIT,
ram16 => CFG_MCTRL_RAM16BIT, invclk => CFG_MCTRL_INVCLK)
port map (rstn, clkm, memi, memo, ahbsi, ahbso(0), apbi, apbo(0), wpo, sdo);
sram_adv <= '1';
ramben_pads : for i in 0 to 3 generate
x : outpad generic map (tech => padtech)
port map (ramben(i), memo.mben(3-i));
end generate;
end generate;
mempads : if (CFG_MCTRL_LEON2 = 1) or (CFG_SSCTRL = 1) generate -- LEON2 memory controller
addr_pad : outpadv generic map (width => 19, tech => padtech)
port map (address, memo.address(20 downto 2));
rams_pad : outpad generic map (tech => padtech)
port map (ramsn, memo.ramsn(0));
roms_pad : outpad generic map (tech => padtech)
port map (romsn, memo.romsn(0));
iosn_pad : outpad generic map (tech => padtech)
port map (iosn, memo.iosn);
oen_pad : outpad generic map (tech => padtech)
port map (oen, memo.oen);
rwen_pad : outpad generic map (tech => padtech)
port map (rwen, memo.writen);
roen_pad : outpad generic map (tech => padtech)
port map (ramoen, memo.ramoen(0));
wri_pad : outpad generic map (tech => padtech)
port map (writen, memo.writen);
bdr : for i in 0 to 3 generate
data_pad : iopadv generic map (tech => padtech, width => 8)
port map (data(31-i*8 downto 24-i*8), memo.data(31-i*8 downto 24-i*8),
memo.bdrive(i), memi.data(31-i*8 downto 24-i*8));
end generate;
end generate;
memi.brdyn <= '1'; memi.bexcn <= '1';
memi.writen <= '1'; memi.wrn <= "1111"; memi.bwidth <= "10";
----------------------------------------------------------------------
--- AHB CONTROLLER -------------------------------------------------
----------------------------------------------------------------------
ahb0 : ahbctrl -- AHB arbiter/multiplexer
generic map (defmast => CFG_DEFMST, split => CFG_SPLIT,
rrobin => CFG_RROBIN, ioaddr => CFG_AHBIO,
ioen => IOAEN, nahbm => maxahbm, nahbs => 8)
port map (rstn, clkm, ahbmi, ahbmo, ahbsi, ahbso);
----------------------------------------------------------------------
--- AHB UART -------------------------------------------------------
----------------------------------------------------------------------
dcomgen : if CFG_AHB_UART = 1 generate
dcom0: ahbuart -- Debug UART
generic map (hindex => CFG_NCPU, pindex => 4, paddr => 4)
port map (rstn, clkm, ahbuarti, ahbuarto, apbi, apbo(4), ahbmi, ahbmo(CFG_NCPU));
dsurx_pad : inpad generic map (tech => padtech) port map (ahbrxd, ahbuarti.rxd);
dsutx_pad : outpad generic map (tech => padtech) port map (ahbtxd, ahbuarto.txd);
-- led(0) <= not ahbuarti.rxd; led(1) <= not ahbuarto.txd;
end generate;
nouah : if CFG_AHB_UART = 0 generate apbo(4) <= apb_none; end generate;
----------------------------------------------------------------------
--- APB Bridge -----------------------------------------------------
----------------------------------------------------------------------
apb0 : apbctrl -- AHB/APB bridge
generic map (hindex => 1, haddr => CFG_APBADDR)
port map (rstn, clkm, ahbsi, ahbso(1), apbi, apbo );
----------------------------------------------------------------------
--- GPT Timer ------------------------------------------------------
----------------------------------------------------------------------
gpt : if CFG_GPT_ENABLE /= 0 generate
timer0 : gptimer -- timer unit
generic map (pindex => 3, paddr => 3, pirq => CFG_GPT_IRQ,
sepirq => CFG_GPT_SEPIRQ, sbits => CFG_GPT_SW, ntimers => CFG_GPT_NTIM,
nbits => CFG_GPT_TW)
port map (rstn, clkm, apbi, apbo(3), gpti, gpto);
gpti.dhalt <= dsuo.tstop; gpti.extclk <= '0';
-- led(4) <= gpto.wdog;
end generate;
notim : if CFG_GPT_ENABLE = 0 generate apbo(3) <= apb_none; end generate;
----------------------------------------------------------------------
--- APB UART -------------------------------------------------------
----------------------------------------------------------------------
ua1 : if CFG_UART1_ENABLE /= 0 generate
uart1 : apbuart -- UART 1
generic map (pindex => 1, paddr => 1, pirq => 2, console => dbguart,
fifosize => CFG_UART1_FIFO)
port map (rstn, clkm, apbi, apbo(1), ahbuarti, apbuarto);
apbuarti.rxd <= urxd1; apbuarti.extclk <= '0'; utxd1 <= apbuarto.txd;
apbuarti.ctsn <= '0'; --rtsn1 <= apbuarto.rtsn;
-- led(0) <= not apbuarti.rxd; led(1) <= not apbuarto.txd;
end generate;
noua0 : if CFG_UART1_ENABLE = 0 generate apbo(1) <= apb_none; end generate;
----------------------------------------------------------------------
--- GPIO -----------------------------------------------------------
----------------------------------------------------------------------
gpio0 : if CFG_GRGPIO_ENABLE /= 0 generate -- GR GPIO unit
grgpio0: grgpio
generic map( pindex => 11, paddr => 11, imask => CFG_GRGPIO_IMASK, nbits => 7)
port map( rstn, clkm, apbi, apbo(11), gpioi, gpioo);
pio_pads : for i in 0 to 6 generate
pio_pad : iopad generic map (tech => padtech)
port map (gpio(i), gpioo.dout(i), gpioo.oen(i), gpioi.din(i));
end generate;
end generate;
end Behavioral;