1 -----------------------------------------------------------------------------
2 -- LEON3 Demonstration design
3 -- Copyright (C) 2004 Jiri Gaisler, Gaisler Research
4 ------------------------------------------------------------------------------
5 -- This file is a part of the GRLIB VHDL IP LIBRARY
6 -- Copyright (C) 2003 - 2008, Gaisler Research
7 -- Copyright (C) 2008 - 2010, Aeroflex Gaisler
9 -- This program is free software; you can redistribute it and/or modify
10 -- it under the terms of the GNU General Public License as published by
11 -- the Free Software Foundation; either version 2 of the License, or
12 -- (at your option) any later version.
14 -- This program is distributed in the hope that it will be useful,
15 -- but WITHOUT ANY WARRANTY; without even the implied warranty of
16 -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 -- GNU General Public License for more details.
19 -- You should have received a copy of the GNU General Public License
20 -- along with this program; if not, write to the Free Software
21 -- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 ------------------------------------------------------------------------------
26 use ieee.std_logic_1164.all;
27 library grlib, techmap;
30 use techmap.gencomp.all;
32 use gaisler.memctrl.all;
33 use gaisler.leon3.all;
39 use gaisler.spacewire.all;
40 use gaisler.grusb.all;
44 use esa.memoryctrl.all;
53 fabtech : integer := CFG_FABTECH;
54 memtech : integer := CFG_MEMTECH;
55 padtech : integer := CFG_PADTECH;
56 clktech : integer := CFG_CLKTECH;
57 disas : integer := CFG_DISAS; -- Enable disassembly to console
58 dbguart : integer := CFG_DUART; -- Print UART on console
59 pclow : integer := CFG_PCLOW
62 resetn : in std_ulogic;
63 clk : in std_ulogic; -- 50 MHz main clock
64 clk3 : in std_ulogic; -- 25 MHz ethernet clock
65 pllref : in std_ulogic;
66 errorn : out std_ulogic;
67 wdogn : out std_ulogic;
68 address : out std_logic_vector(27 downto 0);
69 data : inout std_logic_vector(31 downto 0);
70 ramsn : out std_logic_vector (4 downto 0);
71 ramoen : out std_logic_vector (4 downto 0);
72 rwen : out std_logic_vector (3 downto 0);
74 writen : out std_ulogic;
75 read : out std_ulogic;
76 iosn : out std_ulogic;
77 bexcn : in std_ulogic; -- DSU rx data
78 brdyn : in std_ulogic; -- DSU rx data
79 romsn : out std_logic_vector (1 downto 0);
80 sdclk : out std_ulogic;
81 sdcsn : out std_logic_vector (1 downto 0); -- sdram chip select
82 sdwen : out std_ulogic; -- sdram write enable
83 sdrasn : out std_ulogic; -- sdram ras
84 sdcasn : out std_ulogic; -- sdram cas
85 sddqm : out std_logic_vector (3 downto 0); -- sdram dqm
87 dsuen : in std_ulogic;
88 dsubre : in std_ulogic;
89 dsuact : out std_ulogic;
91 txd1 : out std_ulogic; -- UART1 tx data
92 rxd1 : in std_ulogic; -- UART1 rx data
93 ctsn1 : in std_ulogic; -- UART1 rx data
94 rtsn1 : out std_ulogic; -- UART1 rx data
95 txd2 : out std_ulogic; -- UART2 tx data
96 rxd2 : in std_ulogic; -- UART2 rx data
97 ctsn2 : in std_ulogic; -- UART1 rx data
98 rtsn2 : out std_ulogic; -- UART1 rx data
100 pio : inout std_logic_vector(17 downto 0); -- I/O port
102 emdio : inout std_logic; -- ethernet PHY interface
103 etx_clk : in std_ulogic;
104 erx_clk : in std_ulogic;
105 erxd : in std_logic_vector(3 downto 0);
106 erx_dv : in std_ulogic;
107 erx_er : in std_ulogic;
108 erx_col : in std_ulogic;
109 erx_crs : in std_ulogic;
110 emdint : in std_ulogic;
111 etxd : out std_logic_vector(3 downto 0);
112 etx_en : out std_ulogic;
113 etx_er : out std_ulogic;
114 emdc : out std_ulogic;
116 ps2clk : inout std_logic_vector(1 downto 0);
117 ps2data : inout std_logic_vector(1 downto 0);
119 vid_clock : out std_ulogic;
120 vid_blankn : out std_ulogic;
121 vid_syncn : out std_ulogic;
122 vid_hsync : out std_ulogic;
123 vid_vsync : out std_ulogic;
124 vid_r : out std_logic_vector(7 downto 0);
125 vid_g : out std_logic_vector(7 downto 0);
126 vid_b : out std_logic_vector(7 downto 0);
128 spw_clk : in std_ulogic;
129 spw_rxdp : in std_logic_vector(0 to 2);
130 spw_rxdn : in std_logic_vector(0 to 2);
131 spw_rxsp : in std_logic_vector(0 to 2);
132 spw_rxsn : in std_logic_vector(0 to 2);
133 spw_txdp : out std_logic_vector(0 to 2);
134 spw_txdn : out std_logic_vector(0 to 2);
135 spw_txsp : out std_logic_vector(0 to 2);
136 spw_txsn : out std_logic_vector(0 to 2);
138 usb_clkout : in std_ulogic;
139 usb_d : inout std_logic_vector(15 downto 0);
140 usb_linestate : in std_logic_vector(1 downto 0);
141 usb_opmode : out std_logic_vector(1 downto 0);
142 usb_reset : out std_ulogic;
143 usb_rxactive : in std_ulogic;
144 usb_rxerror : in std_ulogic;
145 usb_rxvalid : in std_ulogic;
146 usb_suspend : out std_ulogic;
147 usb_termsel : out std_ulogic;
148 usb_txready : in std_ulogic;
149 usb_txvalid : out std_ulogic;
150 usb_validh : inout std_ulogic;
151 usb_xcvrsel : out std_ulogic;
152 usb_vbus : in std_ulogic;
154 ata_rstn : out std_logic;
155 ata_data : inout std_logic_vector(15 downto 0);
156 ata_da : out std_logic_vector(2 downto 0);
157 ata_cs0 : out std_logic;
158 ata_cs1 : out std_logic;
159 ata_dior : out std_logic;
160 ata_diow : out std_logic;
161 ata_iordy : in std_logic;
162 ata_intrq : in std_logic;
163 ata_dmarq : in std_logic;
164 ata_dmack : out std_logic;
165 --ata_dasp : in std_logic
166 ata_csel : out std_logic
171 architecture rtl of leon3mp is
173 attribute syn_netlist_hierarchy : boolean;
174 attribute syn_netlist_hierarchy of rtl : architecture is false;
176 constant blength : integer := 12;
177 constant fifodepth : integer := 8;
178 constant maxahbm : integer := CFG_NCPU+CFG_AHB_UART+CFG_GRETH+
179 CFG_AHB_JTAG+CFG_SPW_NUM*CFG_SPW_EN+CFG_GRUSB_DCL+CFG_SVGA_ENABLE+
180 CFG_ATA+CFG_GRUSBDC+1;
182 signal vcc, gnd : std_logic_vector(4 downto 0);
183 signal memi : memory_in_type;
184 signal memo : memory_out_type;
185 signal wpo : wprot_out_type;
186 signal sdi : sdctrl_in_type;
187 signal sdo : sdram_out_type;
188 signal sdo2, sdo3 : sdctrl_out_type;
190 signal apbi : apb_slv_in_type;
191 signal apbo : apb_slv_out_vector := (others => apb_none);
192 signal ahbsi : ahb_slv_in_type;
193 signal ahbso : ahb_slv_out_vector := (others => ahbs_none);
194 signal ahbmi : ahb_mst_in_type;
195 signal ahbmo : ahb_mst_out_vector := (others => ahbm_none);
197 signal clkm, rstn, rstraw, sdclkl : std_ulogic;
198 signal cgi, cgi2 : clkgen_in_type;
199 signal cgo, cgo2 : clkgen_out_type;
200 signal u1i, u2i, dui : uart_in_type;
201 signal u1o, u2o, duo : uart_out_type;
203 signal irqi : irq_in_vector(0 to CFG_NCPU-1);
204 signal irqo : irq_out_vector(0 to CFG_NCPU-1);
206 signal dbgi : l3_debug_in_vector(0 to CFG_NCPU-1);
207 signal dbgo : l3_debug_out_vector(0 to CFG_NCPU-1);
209 signal dsui : dsu_in_type;
210 signal dsuo : dsu_out_type;
212 signal ethi, ethi1, ethi2 : eth_in_type;
213 signal etho, etho1, etho2 : eth_out_type;
215 signal gpti : gptimer_in_type;
216 signal gpto : gptimer_out_type;
218 signal gpioi : gpio_in_type;
219 signal gpioo : gpio_out_type;
221 signal can_lrx, can_ltx : std_logic_vector(0 to 7);
223 signal lclk, rst, ndsuact, wdogl : std_ulogic;
224 signal tck, tckn, tms, tdi, tdo : std_ulogic;
226 signal ethclk : std_ulogic;
228 signal kbdi : ps2_in_type;
229 signal kbdo : ps2_out_type;
230 signal moui : ps2_in_type;
231 signal mouo : ps2_out_type;
232 signal vgao : apbvga_out_type;
234 constant BOARD_FREQ : integer := 50000; -- input frequency in KHz
235 constant CPU_FREQ : integer := BOARD_FREQ * CFG_CLKMUL / CFG_CLKDIV; -- cpu frequency in KHz
236 constant IOAEN : integer := CFG_CAN + CFG_ATA + CFG_GRUSBDC;
238 signal spwi : grspw_in_type_vector(0 to 2);
239 signal spwo : grspw_out_type_vector(0 to 2);
240 signal dtmp : std_logic_vector(2 downto 0);
241 signal stmp : std_logic_vector(2 downto 0);
242 signal spw_clkl : std_ulogic;
243 signal spw_clkln : std_ulogic;
244 signal rxclko : std_logic_vector(CFG_SPW_NUM-1 downto 0);
245 signal stati : ahbstat_in_type;
247 signal uclk : std_ulogic;
248 signal usbi : grusb_in_type;
249 signal usbo : grusb_out_type;
251 signal idei : ata_in_type;
252 signal ideo : ata_out_type;
254 constant SPW_LOOP_BACK : integer := 0;
256 signal dac_clk, video_clk, clk50 : std_logic; -- signals to vga_clkgen.
257 signal clk_sel : std_logic_vector(1 downto 0);
259 attribute keep : boolean;
260 attribute syn_keep : boolean;
261 attribute syn_preserve : boolean;
262 attribute syn_keep of clk50 : signal is true;
263 attribute syn_preserve of clk50 : signal is true;
264 attribute keep of clk50 : signal is true;
265 attribute syn_keep of video_clk : signal is true;
266 attribute syn_preserve of video_clk : signal is true;
267 attribute keep of video_clk : signal is true;
271 ----------------------------------------------------------------------
272 --- Reset and Clock generation -------------------------------------
273 ----------------------------------------------------------------------
275 vcc <= (others => '1'); gnd <= (others => '0');
276 cgi.pllctrl <= "00"; cgi.pllrst <= rstraw;
278 pllref_pad : clkpad generic map (tech => padtech) port map (pllref, cgi.pllref);
279 ethclk_pad : inpad generic map (tech => padtech) port map(clk3, ethclk);
280 clk_pad : clkpad generic map (tech => padtech) port map (clk, lclk);
281 clkgen0 : clkgen -- clock generator
282 generic map (clktech, CFG_CLKMUL, CFG_CLKDIV, CFG_MCTRL_SDEN,
283 CFG_CLK_NOFB, 0, 0, 0, BOARD_FREQ)
284 port map (lclk, lclk, clkm, open, open, sdclkl, open, cgi, cgo, open, clk50);
286 sdclk_pad : outpad generic map (tech => padtech, slew => 1, strength => 24)
287 port map (sdclk, sdclkl);
289 resetn_pad : inpad generic map (tech => padtech) port map (resetn, rst);
290 rst0 : rstgen -- reset generator
291 port map (rst, clkm, cgo.clklock, rstn, rstraw);
293 ----------------------------------------------------------------------
294 --- AHB CONTROLLER --------------------------------------------------
295 ----------------------------------------------------------------------
297 ahb0 : ahbctrl -- AHB arbiter/multiplexer
298 generic map (defmast => CFG_DEFMST, split => CFG_SPLIT,
299 rrobin => CFG_RROBIN, ioaddr => CFG_AHBIO,
300 ioen => IOAEN, nahbm => maxahbm, nahbs => 8)
301 port map (rstn, clkm, ahbmi, ahbmo, ahbsi, ahbso);
303 ----------------------------------------------------------------------
304 --- LEON3 processor and DSU -----------------------------------------
305 ----------------------------------------------------------------------
307 l3 : if CFG_LEON3 = 1 generate
308 cpu : for i in 0 to CFG_NCPU-1 generate
309 u0 : leon3s -- LEON3 processor
310 generic map (i, fabtech, memtech, CFG_NWIN, CFG_DSU, CFG_FPU, CFG_V8,
311 0, CFG_MAC, pclow, 0, CFG_NWP, CFG_ICEN, CFG_IREPL, CFG_ISETS, CFG_ILINE,
312 CFG_ISETSZ, CFG_ILOCK, CFG_DCEN, CFG_DREPL, CFG_DSETS, CFG_DLINE, CFG_DSETSZ,
313 CFG_DLOCK, CFG_DSNOOP, CFG_ILRAMEN, CFG_ILRAMSZ, CFG_ILRAMADDR, CFG_DLRAMEN,
314 CFG_DLRAMSZ, CFG_DLRAMADDR, CFG_MMUEN, CFG_ITLBNUM, CFG_DTLBNUM, CFG_TLB_TYPE, CFG_TLB_REP,
315 CFG_LDDEL, disas, CFG_ITBSZ, CFG_PWD, CFG_SVT, CFG_RSTADDR, CFG_NCPU-1, 0, 0,
316 CFG_MMU_PAGE, CFG_BP)
317 port map (clkm, rstn, ahbmi, ahbmo(i), ahbsi, ahbso,
318 irqi(i), irqo(i), dbgi(i), dbgo(i));
320 errorn_pad : odpad generic map (tech => padtech) port map (errorn, dbgo(0).error);
322 dsugen : if CFG_DSU = 1 generate
323 dsu0 : dsu3 -- LEON3 Debug Support Unit
324 generic map (hindex => 2, haddr => 16#900#, hmask => 16#F00#,
325 ncpu => CFG_NCPU, tbits => 30, tech => memtech, irq => 0, kbytes => CFG_ATBSZ)
326 port map (rstn, clkm, ahbmi, ahbsi, ahbso(2), dbgo, dbgi, dsui, dsuo);
327 dsuen_pad : inpad generic map (tech => padtech) port map (dsuen, dsui.enable);
328 dsubre_pad : inpad generic map (tech => padtech) port map (dsubre, dsui.break);
329 dsuact_pad : outpad generic map (tech => padtech) port map (dsuact, ndsuact);
330 ndsuact <= not dsuo.active;
333 nodsu : if CFG_DSU = 0 generate
334 dsuo.tstop <= '0'; dsuo.active <= '0';
337 dcomgen : if CFG_AHB_UART = 1 generate
338 dcom0: ahbuart -- Debug UART
339 generic map (hindex => CFG_NCPU, pindex => 7, paddr => 7)
340 port map (rstn, clkm, dui, duo, apbi, apbo(7), ahbmi, ahbmo(CFG_NCPU));
341 dsurx_pad : inpad generic map (tech => padtech) port map (rxd2, dui.rxd);
342 dsutx_pad : outpad generic map (tech => padtech) port map (txd2, duo.txd);
344 nouah : if CFG_AHB_UART = 0 generate apbo(7) <= apb_none; end generate;
346 ahbjtaggen0 :if CFG_AHB_JTAG = 1 generate
347 ahbjtag0 : ahbjtag generic map(tech => fabtech, hindex => CFG_NCPU+CFG_AHB_UART)
348 port map(rstn, clkm, tck, tms, tdi, tdo, ahbmi, ahbmo(CFG_NCPU+CFG_AHB_UART),
349 open, open, open, open, open, open, open, gnd(0));
352 ----------------------------------------------------------------------
353 --- Memory controllers ----------------------------------------------
354 ----------------------------------------------------------------------
356 memi.writen <= '1'; memi.wrn <= "1111"; memi.bwidth <= "00";
357 brdyn_pad : inpad generic map (tech => padtech) port map (brdyn, memi.brdyn);
358 bexcn_pad : inpad generic map (tech => padtech) port map (bexcn, memi.bexcn);
360 mctrl0 : mctrl generic map (hindex => 0, pindex => 0,
361 paddr => 0, srbanks => 2, ram8 => CFG_MCTRL_RAM8BIT,
362 ram16 => CFG_MCTRL_RAM16BIT, sden => CFG_MCTRL_SDEN,
363 invclk => CFG_CLK_NOFB, sepbus => CFG_MCTRL_SEPBUS,
364 pageburst => CFG_MCTRL_PAGE)
365 port map (rstn, clkm, memi, memo, ahbsi, ahbso(0), apbi, apbo(0), wpo, sdo);
366 sdpads : if CFG_MCTRL_SDEN = 1 generate -- SDRAM controller
367 sdwen_pad : outpad generic map (tech => padtech)
368 port map (sdwen, sdo.sdwen);
369 sdras_pad : outpad generic map (tech => padtech)
370 port map (sdrasn, sdo.rasn);
371 sdcas_pad : outpad generic map (tech => padtech)
372 port map (sdcasn, sdo.casn);
373 sddqm_pad : outpadv generic map (width =>4, tech => padtech)
374 port map (sddqm, sdo.dqm(3 downto 0));
376 sdcsn_pad : outpadv generic map (width =>2, tech => padtech)
377 port map (sdcsn, sdo.sdcsn);
379 addr_pad : outpadv generic map (width => 28, tech => padtech)
380 port map (address, memo.address(27 downto 0));
381 rams_pad : outpadv generic map (width => 5, tech => padtech)
382 port map (ramsn, memo.ramsn(4 downto 0));
383 roms_pad : outpadv generic map (width => 2, tech => padtech)
384 port map (romsn, memo.romsn(1 downto 0));
385 oen_pad : outpad generic map (tech => padtech)
386 port map (oen, memo.oen);
387 rwen_pad : outpadv generic map (width => 4, tech => padtech)
388 port map (rwen, memo.wrn);
389 roen_pad : outpadv generic map (width => 5, tech => padtech)
390 port map (ramoen, memo.ramoen(4 downto 0));
391 wri_pad : outpad generic map (tech => padtech)
392 port map (writen, memo.writen);
393 read_pad : outpad generic map (tech => padtech)
394 port map (read, memo.read);
395 iosn_pad : outpad generic map (tech => padtech)
396 port map (iosn, memo.iosn);
397 bdr : for i in 0 to 3 generate
398 data_pad : iopadv generic map (tech => padtech, width => 8)
399 port map (data(31-i*8 downto 24-i*8), memo.data(31-i*8 downto 24-i*8),
400 memo.bdrive(i), memi.data(31-i*8 downto 24-i*8));
403 ----------------------------------------------------------------------
404 --- APB Bridge and various periherals -------------------------------
405 ----------------------------------------------------------------------
407 bpromgen : if CFG_AHBROMEN /= 0 generate
408 brom : entity work.ahbrom
409 generic map (hindex => 6, haddr => CFG_AHBRODDR, pipe => CFG_AHBROPIP)
410 port map ( rstn, clkm, ahbsi, ahbso(6));
413 ----------------------------------------------------------------------
414 --- APB Bridge and various periherals -------------------------------
415 ----------------------------------------------------------------------
417 apb0 : apbctrl -- AHB/APB bridge
418 generic map (hindex => 1, haddr => CFG_APBADDR, nslaves => 16)
419 port map (rstn, clkm, ahbsi, ahbso(1), apbi, apbo );
421 ua1 : if CFG_UART1_ENABLE /= 0 generate
422 uart1 : apbuart -- UART 1
423 generic map (pindex => 1, paddr => 1, pirq => 2, console => dbguart,
424 fifosize => CFG_UART1_FIFO)
425 port map (rstn, clkm, apbi, apbo(1), u1i, u1o);
427 rxd1_pad : inpad generic map (tech => padtech) port map (rxd1, u1i.rxd);
428 txd1_pad : outpad generic map (tech => padtech) port map (txd1, u1o.txd);
429 cts1_pad : inpad generic map (tech => padtech) port map (ctsn1, u1i.ctsn);
430 rts1_pad : outpad generic map (tech => padtech) port map (rtsn1, u1o.rtsn);
432 noua0 : if CFG_UART1_ENABLE = 0 generate apbo(1) <= apb_none; end generate;
434 ua2 : if CFG_UART2_ENABLE /= 0 generate
435 uart2 : apbuart -- UART 2
436 generic map (pindex => 9, paddr => 9, pirq => 3, fifosize => CFG_UART2_FIFO)
437 port map (rstn, clkm, apbi, apbo(9), u2i, u2o);
439 rxd2_pad : inpad generic map (tech => padtech) port map (rxd2, u2i.rxd);
440 txd2_pad : outpad generic map (tech => padtech) port map (txd2, u2o.txd);
441 cts2_pad : inpad generic map (tech => padtech) port map (ctsn2, u2i.ctsn);
442 rts2_pad : outpad generic map (tech => padtech) port map (rtsn2, u2o.rtsn);
444 noua1 : if CFG_UART2_ENABLE = 0 generate
445 apbo(9) <= apb_none; rtsn2 <= '0';
448 irqctrl : if CFG_IRQ3_ENABLE /= 0 generate
449 irqctrl0 : irqmp -- interrupt controller
450 generic map (pindex => 2, paddr => 2, ncpu => CFG_NCPU)
451 port map (rstn, clkm, apbi, apbo(2), irqo, irqi);
453 irq3 : if CFG_IRQ3_ENABLE = 0 generate
454 x : for i in 0 to CFG_NCPU-1 generate
455 irqi(i).irl <= "0000";
460 gpt : if CFG_GPT_ENABLE /= 0 generate
461 timer0 : gptimer -- timer unit
462 generic map (pindex => 3, paddr => 3, pirq => CFG_GPT_IRQ,
463 sepirq => CFG_GPT_SEPIRQ, sbits => CFG_GPT_SW, ntimers => CFG_GPT_NTIM,
464 nbits => CFG_GPT_TW, wdog => CFG_GPT_WDOGEN*CFG_GPT_WDOG)
465 port map (rstn, clkm, apbi, apbo(3), gpti, gpto);
466 gpti.dhalt <= dsuo.tstop; gpti.extclk <= '0';
468 wden : if CFG_GPT_WDOGEN /= 0 generate
469 wdogl <= gpto.wdogn or not rstn;
470 wdogn_pad : odpad generic map (tech => padtech) port map (wdogn, wdogl);
472 wddis : if CFG_GPT_WDOGEN = 0 generate
473 wdogn_pad : odpad generic map (tech => padtech) port map (wdogn, vcc(0));
476 nogpt : if CFG_GPT_ENABLE = 0 generate apbo(3) <= apb_none; end generate;
478 kbd : if CFG_KBD_ENABLE /= 0 generate
479 ps21 : apbps2 generic map(pindex => 4, paddr => 4, pirq => 4)
480 port map(rstn, clkm, apbi, apbo(4), moui, mouo);
481 ps20 : apbps2 generic map(pindex => 5, paddr => 5, pirq => 5)
482 port map(rstn, clkm, apbi, apbo(5), kbdi, kbdo);
484 nokbd : if CFG_KBD_ENABLE = 0 generate
485 apbo(4) <= apb_none; mouo <= ps2o_none;
486 apbo(5) <= apb_none; kbdo <= ps2o_none;
488 kbdclk_pad : iopad generic map (tech => padtech)
489 port map (ps2clk(0),kbdo.ps2_clk_o, kbdo.ps2_clk_oe, kbdi.ps2_clk_i);
490 kbdata_pad : iopad generic map (tech => padtech)
491 port map (ps2data(0), kbdo.ps2_data_o, kbdo.ps2_data_oe, kbdi.ps2_data_i);
492 mouclk_pad : iopad generic map (tech => padtech)
493 port map (ps2clk(1),mouo.ps2_clk_o, mouo.ps2_clk_oe, moui.ps2_clk_i);
494 mouata_pad : iopad generic map (tech => padtech)
495 port map (ps2data(1), mouo.ps2_data_o, mouo.ps2_data_oe, moui.ps2_data_i);
497 vga : if CFG_VGA_ENABLE /= 0 generate
498 vga0 : apbvga generic map(memtech => memtech, pindex => 6, paddr => 6)
499 port map(rstn, clkm, ethclk, apbi, apbo(6), vgao);
500 video_clock_pad : outpad generic map ( tech => padtech)
501 port map (vid_clock, video_clk);
502 video_clk <= not ethclk;
505 svga : if CFG_SVGA_ENABLE /= 0 generate
506 svga0 : svgactrl generic map(memtech => memtech, pindex => 6, paddr => 6,
507 hindex => CFG_NCPU+CFG_AHB_UART+CFG_AHB_JTAG,
508 clk0 => 40000, clk1 => 1000000000/((BOARD_FREQ * CFG_CLKMUL)/CFG_CLKDIV),
509 clk2 => 20000, clk3 => 15385, burstlen => 6)
510 port map(rstn, clkm, video_clk, apbi, apbo(6), vgao, ahbmi,
511 ahbmo(CFG_NCPU+CFG_AHB_UART+CFG_AHB_JTAG), clk_sel);
512 vgaclk0 : entity work.vga_clkgen
513 port map (rstn, clk_sel, ethclk, clkm, clk50, video_clk);
514 dac_clk <= not video_clk;
515 video_clock_pad : outpad generic map ( tech => padtech)
516 port map (vid_clock, dac_clk);
519 novga : if (CFG_VGA_ENABLE = 0 and CFG_SVGA_ENABLE = 0) generate
520 apbo(6) <= apb_none; vgao <= vgao_none;
521 video_clk <= not clkm;
522 video_clock_pad : outpad generic map ( tech => padtech)
523 port map (vid_clock, video_clk);
526 blank_pad : outpad generic map (tech => padtech)
527 port map (vid_blankn, vgao.blank);
528 comp_sync_pad : outpad generic map (tech => padtech)
529 port map (vid_syncn, vgao.comp_sync);
530 vert_sync_pad : outpad generic map (tech => padtech)
531 port map (vid_vsync, vgao.vsync);
532 horiz_sync_pad : outpad generic map (tech => padtech)
533 port map (vid_hsync, vgao.hsync);
534 video_out_r_pad : outpadv generic map (width => 8, tech => padtech)
535 port map (vid_r, vgao.video_out_r);
536 video_out_g_pad : outpadv generic map (width => 8, tech => padtech)
537 port map (vid_g, vgao.video_out_g);
538 video_out_b_pad : outpadv generic map (width => 8, tech => padtech)
539 port map (vid_b, vgao.video_out_b);
541 gpio0 : if CFG_GRGPIO_ENABLE /= 0 generate -- GPIO unit
543 generic map(pindex => 8, paddr => 8, imask => CFG_GRGPIO_IMASK, nbits => 18)
544 port map(rst => rstn, clk => clkm, apbi => apbi, apbo => apbo(8),
545 gpioi => gpioi, gpioo => gpioo);
546 p0 : if (CFG_CAN = 0) or (CFG_CAN_NUM = 1) generate
547 pio_pads : for i in 1 to 2 generate
548 pio_pad : iopad generic map (tech => padtech)
549 port map (pio(i), gpioo.dout(i), gpioo.oen(i), gpioi.din(i));
552 p1 : if (CFG_CAN = 0) generate
553 pio_pads : for i in 4 to 5 generate
554 pio_pad : iopad generic map (tech => padtech)
555 port map (pio(i), gpioo.dout(i), gpioo.oen(i), gpioi.din(i));
558 pio_pad0 : iopad generic map (tech => padtech)
559 port map (pio(0), gpioo.dout(0), gpioo.oen(0), gpioi.din(0));
560 pio_pad1 : iopad generic map (tech => padtech)
561 port map (pio(3), gpioo.dout(3), gpioo.oen(3), gpioi.din(3));
562 pio_pads : for i in 6 to 17 generate
563 pio_pad : iopad generic map (tech => padtech)
564 port map (pio(i), gpioo.dout(i), gpioo.oen(i), gpioi.din(i));
569 ahbs : if CFG_AHBSTAT = 1 generate -- AHB status register
570 ahbstat0 : ahbstat generic map (pindex => 15, paddr => 15, pirq => 7,
571 nftslv => CFG_AHBSTATN)
572 port map (rstn, clkm, ahbmi, ahbsi, stati, apbi, apbo(15));
575 -----------------------------------------------------------------------
576 --- ETHERNET ---------------------------------------------------------
577 -----------------------------------------------------------------------
579 eth0 : if CFG_GRETH = 1 generate -- Gaisler ethernet MAC
580 e1 : grethm generic map(
581 hindex => CFG_NCPU+CFG_AHB_UART+CFG_AHB_JTAG+CFG_SVGA_ENABLE,
582 pindex => 13, paddr => 13, pirq => 13, memtech => memtech,
583 mdcscaler => CPU_FREQ/1000, enable_mdio => 1, fifosize => CFG_ETH_FIFO,
584 nsync => 1, edcl => CFG_DSU_ETH, edclbufsz => CFG_ETH_BUF,
585 macaddrh => CFG_ETH_ENM, macaddrl => CFG_ETH_ENL, enable_mdint => 1,
586 ipaddrh => CFG_ETH_IPM, ipaddrl => CFG_ETH_IPL, giga => CFG_GRETH1G)
587 port map( rst => rstn, clk => clkm, ahbmi => ahbmi,
588 ahbmo => ahbmo(CFG_NCPU+CFG_AHB_UART+CFG_AHB_JTAG+CFG_SVGA_ENABLE),
589 apbi => apbi, apbo => apbo(13), ethi => ethi, etho => etho);
592 ethpads : if (CFG_GRETH = 1) generate -- eth pads
593 emdio_pad : iopad generic map (tech => padtech)
594 port map (emdio, etho.mdio_o, etho.mdio_oe, ethi.mdio_i);
595 etxc_pad : clkpad generic map (tech => padtech, arch => 2)
596 port map (etx_clk, ethi.tx_clk);
597 erxc_pad : clkpad generic map (tech => padtech, arch => 2)
598 port map (erx_clk, ethi.rx_clk);
599 erxd_pad : inpadv generic map (tech => padtech, width => 4)
600 port map (erxd, ethi.rxd(3 downto 0));
601 erxdv_pad : inpad generic map (tech => padtech)
602 port map (erx_dv, ethi.rx_dv);
603 erxer_pad : inpad generic map (tech => padtech)
604 port map (erx_er, ethi.rx_er);
605 erxco_pad : inpad generic map (tech => padtech)
606 port map (erx_col, ethi.rx_col);
607 erxcr_pad : inpad generic map (tech => padtech)
608 port map (erx_crs, ethi.rx_crs);
609 emdint_pad : inpad generic map (tech => padtech)
610 port map (emdint, ethi.mdint);
612 etxd_pad : outpadv generic map (tech => padtech, width => 4)
613 port map (etxd, etho.txd(3 downto 0));
614 etxen_pad : outpad generic map (tech => padtech)
615 port map ( etx_en, etho.tx_en);
616 etxer_pad : outpad generic map (tech => padtech)
617 port map (etx_er, etho.tx_er);
618 emdc_pad : outpad generic map (tech => padtech)
619 port map (emdc, etho.mdc);
622 -----------------------------------------------------------------------
623 --- AHB RAM ----------------------------------------------------------
624 -----------------------------------------------------------------------
626 ocram : if CFG_AHBRAMEN = 1 generate
627 ahbram0 : ahbram generic map (hindex => 7, haddr => CFG_AHBRADDR,
628 tech => CFG_MEMTECH, kbytes => CFG_AHBRSZ)
629 port map ( rstn, clkm, ahbsi, ahbso(7));
632 -----------------------------------------------------------------------
633 --- Multi-core CAN ---------------------------------------------------
634 -----------------------------------------------------------------------
636 can0 : if CFG_CAN = 1 generate
637 can0 : can_mc generic map (slvndx => 4, ioaddr => CFG_CANIO,
638 iomask => 16#FF0#, irq => CFG_CANIRQ, memtech => memtech,
639 ncores => CFG_CAN_NUM, sepirq => CFG_CANSEPIRQ)
640 port map (rstn, clkm, ahbsi, ahbso(4), can_lrx, can_ltx );
641 can_tx_pad1 : iopad generic map (tech => padtech)
642 port map (pio(5), can_ltx(0), gnd(0), gpioi.din(5));
643 can_rx_pad1 : iopad generic map (tech => padtech)
644 port map (pio(4), gnd(0), vcc(0), can_lrx(0));
645 canpas : if CFG_CAN_NUM = 2 generate
646 can_tx_pad2 : iopad generic map (tech => padtech)
647 port map (pio(2), can_ltx(1), gnd(0), gpioi.din(2));
648 can_rx_pad2 : iopad generic map (tech => padtech)
649 port map (pio(1), gnd(0), vcc(0), can_lrx(1));
653 -- standby controlled by pio(3) and pio(0)
655 -----------------------------------------------------------------------
656 --- SPACEWIRE -------------------------------------------------------
657 -----------------------------------------------------------------------
659 spw : if CFG_SPW_EN > 0 generate
660 core0: if CFG_SPW_GRSPW = 1 generate
664 core1 : if CFG_SPW_GRSPW = 2 generate
665 cgi2.pllctrl <= "00"; cgi2.pllrst <= rstraw;
666 clkgen_spw_rx : clkgen -- clock generator
667 generic map (clktech, 12, 2, 0,
669 port map (clk3, clk3, spw_clkl, spw_clkln, open, open, open, cgi2, cgo2, open, open);
672 swloop : for i in 0 to CFG_SPW_NUM-1 generate
673 core1 : if CFG_SPW_GRSPW = 2 generate
674 spw_phy0 : grspw2_phy
678 input_type => CFG_SPW_INPUT)
682 rxclkin => spw_clkln,
686 do => spwi(i).d(1 downto 0),
687 dov => spwi(i).dv(1 downto 0),
688 dconnect => spwi(i).dconnect(1 downto 0),
689 rxclko => rxclko(i));
692 sw0 : grspwm generic map(tech => memtech,
693 hindex => CFG_NCPU+CFG_AHB_UART+CFG_GRETH+CFG_AHB_JTAG+CFG_SVGA_ENABLE+i,
694 sysfreq => CPU_FREQ, usegen => 1,
695 pindex => 10+i, paddr => 10+i, pirq => 10+i,
696 nsync => 1, rmap => CFG_SPW_RMAP, rxunaligned => CFG_SPW_RXUNAL,
697 rmapcrc => CFG_SPW_RMAPCRC, fifosize1 => CFG_SPW_AHBFIFO,
698 fifosize2 => CFG_SPW_RXFIFO, rxclkbuftype => 2, dmachan => CFG_SPW_DMACHAN,
699 rmapbufs => CFG_SPW_RMAPBUF, ft => CFG_SPW_FT, ports => CFG_SPW_PORTS,
700 spwcore => CFG_SPW_GRSPW, netlist => CFG_SPW_NETLIST,
701 rxtx_sameclk => CFG_SPW_RTSAME, input_type => CFG_SPW_INPUT,
702 output_type => CFG_SPW_OUTPUT)
703 port map(rstn, clkm, rxclko(i), rxclko(i), spw_clkl, spw_clkl, ahbmi,
704 ahbmo(CFG_NCPU+CFG_AHB_UART+CFG_GRETH+CFG_AHB_JTAG+CFG_SVGA_ENABLE+i),
705 apbi, apbo(10+i), spwi(i), spwo(i));
706 spwi(i).tickin <= '0'; spwi(i).rmapen <= '1';
707 spwi(i).clkdiv10 <= conv_std_logic_vector(CPU_FREQ/10000-1, 8) when CFG_SPW_GRSPW = 1
708 else conv_std_logic_vector((25*12/20)-1, 8);
710 spwlb0 : if SPW_LOOP_BACK = 1 generate
711 core0 : if CFG_SPW_GRSPW = 1 generate
712 spwi(i).d(0) <= spwo(i).d(0); spwi(i).s(0) <= spwo(i).s(0);
714 core1 : if CFG_SPW_GRSPW = 2 generate
715 dtmp(i) <= spwo(i).d(0); stmp(i) <= spwo(i).s(0);
719 nospwlb0 : if SPW_LOOP_BACK = 0 generate
720 core0 : if CFG_SPW_GRSPW = 1 generate
721 spwi(i).d(0) <= dtmp(i); spwi(i).s(0) <= stmp(i);
723 spw_rxd_pad : inpad_ds generic map (padtech, lvds, x25v)
724 port map (spw_rxdp(i), spw_rxdn(i), dtmp(i));
725 spw_rxs_pad : inpad_ds generic map (padtech, lvds, x25v)
726 port map (spw_rxsp(i), spw_rxsn(i), stmp(i));
727 spw_txd_pad : outpad_ds generic map (padtech, lvds, x25v)
728 port map (spw_txdp(i), spw_txdn(i), spwo(i).d(0), gnd(0));
729 spw_txs_pad : outpad_ds generic map (padtech, lvds, x25v)
730 port map (spw_txsp(i), spw_txsn(i), spwo(i).s(0), gnd(0));
735 -------------------------------------------------------------------------------
736 --- USB -----------------------------------------------------------------------
737 -------------------------------------------------------------------------------
738 -- Note that the GRUSBDC and GRUSB_DCL can not be instantiated at the same
739 -- time (board has only one USB transceiver), therefore they share AHB
740 -- master/slave indexes
741 -----------------------------------------------------------------------------
743 -----------------------------------------------------------------------------
744 usbpads: if (CFG_GRUSBDC + CFG_GRUSB_DCL) /= 0 generate
745 usb_clk_pad : clkpad generic map (tech => padtech, arch => 2)
746 port map (usb_clkout, uclk);
748 usb_d_pad: iopadv generic map(tech => padtech, width => 16, slew => 1)
749 port map (usb_d, usbo.dataout, usbo.oen, usbi.datain);
751 usb_txready_pad : inpad generic map (tech => padtech)
752 port map (usb_txready,usbi.txready);
753 usb_rxvalid_pad : inpad generic map (tech => padtech)
754 port map (usb_rxvalid,usbi.rxvalid);
755 usb_rxerror_pad : inpad generic map (tech => padtech)
756 port map (usb_rxerror,usbi.rxerror);
757 usb_rxactive_pad : inpad generic map (tech => padtech)
758 port map (usb_rxactive,usbi.rxactive);
759 usb_linestate_pad : inpadv generic map (tech => padtech, width => 2)
760 port map (usb_linestate,usbi.linestate);
761 usb_vbus_pad : inpad generic map (tech => padtech)
762 port map (usb_vbus, usbi.vbusvalid);
764 usb_reset_pad : outpad generic map (tech => padtech, slew => 1)
765 port map (usb_reset,usbo.reset);
766 usb_suspend_pad : outpad generic map (tech => padtech, slew => 1)
767 port map (usb_suspend,usbo.suspendm);
768 usb_termsel_pad : outpad generic map (tech => padtech, slew => 1)
769 port map (usb_termsel,usbo.termselect);
770 usb_xcvrsel_pad : outpad generic map (tech => padtech, slew => 1)
771 port map (usb_xcvrsel,usbo.xcvrselect(0));
772 usb_txvalid_pad : outpad generic map (tech => padtech, slew => 1)
773 port map (usb_txvalid,usbo.txvalid);
774 usb_opmode_pad : outpadv generic map (tech =>padtech ,width =>2, slew =>1)
775 port map (usb_opmode,usbo.opmode);
777 usb_validh_pad:iopad generic map(tech => padtech, slew => 1)
778 port map (usb_validh, usbo.txvalidh, usbo.oen, usbi.rxvalidh);
782 -----------------------------------------------------------------------------
783 -- USB 2.0 Device Controller
784 -----------------------------------------------------------------------------
785 usbdc0: if CFG_GRUSBDC = 1 generate
788 hsindex => 5, hirq => 9, haddr => 16#004#, hmask => 16#FFC#,
789 hmindex => CFG_NCPU+CFG_AHB_UART+CFG_GRETH+CFG_AHB_JTAG+
790 CFG_SVGA_ENABLE+CFG_SPW_NUM*CFG_SPW_EN,
791 aiface => CFG_GRUSBDC_AIFACE, uiface => 0, dwidth => CFG_GRUSBDC_DW,
792 nepi => CFG_GRUSBDC_NEPI, nepo => CFG_GRUSBDC_NEPO,
793 i0 => CFG_GRUSBDC_I0, i1 => CFG_GRUSBDC_I1,
794 i2 => CFG_GRUSBDC_I2, i3 => CFG_GRUSBDC_I3,
795 i4 => CFG_GRUSBDC_I4, i5 => CFG_GRUSBDC_I5,
796 i6 => CFG_GRUSBDC_I6, i7 => CFG_GRUSBDC_I7,
797 i8 => CFG_GRUSBDC_I8, i9 => CFG_GRUSBDC_I9,
798 i10 => CFG_GRUSBDC_I10, i11 => CFG_GRUSBDC_I11,
799 i12 => CFG_GRUSBDC_I12, i13 => CFG_GRUSBDC_I13,
800 i14 => CFG_GRUSBDC_I14, i15 => CFG_GRUSBDC_I15,
801 o0 => CFG_GRUSBDC_O0, o1 => CFG_GRUSBDC_O1,
802 o2 => CFG_GRUSBDC_O2, o3 => CFG_GRUSBDC_O3,
803 o4 => CFG_GRUSBDC_O4, o5 => CFG_GRUSBDC_O5,
804 o6 => CFG_GRUSBDC_O6, o7 => CFG_GRUSBDC_O7,
805 o8 => CFG_GRUSBDC_O8, o9 => CFG_GRUSBDC_O9,
806 o10 => CFG_GRUSBDC_O10, o11 => CFG_GRUSBDC_O11,
807 o12 => CFG_GRUSBDC_O12, o13 => CFG_GRUSBDC_O13,
808 o14 => CFG_GRUSBDC_O14, o15 => CFG_GRUSBDC_O15,
817 ahbmo => ahbmo(CFG_NCPU+CFG_AHB_UART+CFG_GRETH+CFG_AHB_JTAG+
818 CFG_SVGA_ENABLE+CFG_SPW_NUM*CFG_SPW_EN),
824 -----------------------------------------------------------------------------
826 -----------------------------------------------------------------------------
827 usb_dcl0: if CFG_GRUSB_DCL = 1 generate
830 hindex => CFG_NCPU+CFG_AHB_UART+CFG_GRETH+CFG_AHB_JTAG+
831 CFG_SVGA_ENABLE+CFG_SPW_NUM*CFG_SPW_EN,
832 memtech => memtech, uiface => 0, dwidth => CFG_GRUSB_DCL_DW)
834 uclk, usbi, usbo, clkm, rstn, ahbmi,
835 ahbmo(CFG_NCPU+CFG_AHB_UART+CFG_GRETH+CFG_AHB_JTAG+CFG_SVGA_ENABLE+
836 CFG_SPW_NUM*CFG_SPW_EN));
837 end generate usb_dcl0;
839 -----------------------------------------------------------------------
840 --- AHB ATA ----------------------------------------------------------
841 -----------------------------------------------------------------------
843 ata0 : if CFG_ATA = 1 generate
846 tech => 0, fdepth => CFG_ATAFIFO,
847 mhindex => CFG_NCPU+CFG_AHB_UART+CFG_GRETH+CFG_AHB_JTAG+
848 CFG_SVGA_ENABLE+CFG_SPW_NUM*CFG_SPW_EN+CFG_GRUSB_DCL+
850 shindex => 3, haddr => 16#A00#, hmask => 16#fff#, pirq => CFG_ATAIRQ,
851 mwdma => CFG_ATADMA, TWIDTH => 8,
852 -- PIO mode 0 settings (@100MHz clock)
853 PIO_mode0_T1 => 6, -- 70ns
854 PIO_mode0_T2 => 28, -- 290ns
855 PIO_mode0_T4 => 2, -- 30ns
856 PIO_mode0_Teoc => 23 -- 240ns ==> T0 - T1 - T2 = 600 - 70 - 290 = 240
859 rst => rstn, arst => vcc(0), clk => clkm, ahbmi => ahbmi,
860 ahbmo => ahbmo(CFG_NCPU+CFG_AHB_UART+CFG_GRETH+CFG_AHB_JTAG+
861 CFG_SVGA_ENABLE+CFG_SPW_NUM*CFG_SPW_EN+
862 CFG_GRUSB_DCL+CFG_GRUSBDC),
863 ahbsi => ahbsi, ahbso => ahbso(3), atai => idei, atao => ideo);
865 ata_rstn_pad : outpad generic map (tech => padtech)
866 port map (ata_rstn, ideo.rstn);
867 ata_data_pad : iopadv generic map (tech => padtech, width => 16, oepol => 1)
868 port map (ata_data, ideo.ddo, ideo.oen, idei.ddi);
869 ata_da_pad : outpadv generic map (tech => padtech, width => 3)
870 port map (ata_da, ideo.da);
871 ata_cs0_pad : outpad generic map (tech => padtech)
872 port map (ata_cs0, ideo.cs0);
873 ata_cs1_pad : outpad generic map (tech => padtech)
874 port map (ata_cs1, ideo.cs1);
875 ata_dior_pad : outpad generic map (tech => padtech)
876 port map (ata_dior, ideo.dior);
877 ata_diow_pad : outpad generic map (tech => padtech)
878 port map (ata_diow, ideo.diow);
879 iordy_pad : inpad generic map (tech => padtech)
880 port map (ata_iordy, idei.iordy);
881 intrq_pad : inpad generic map (tech => padtech)
882 port map (ata_intrq, idei.intrq);
883 dmarq_pad : inpad generic map (tech => padtech)
884 port map (ata_dmarq, idei.dmarq);
885 dmack_pad : outpad generic map (tech => padtech)
886 port map (ata_dmack, ideo.dmack);
891 -------------------------------------------------------------------------------
892 -- Upsample YCC-RGB translation module ---------------------------------------
893 -------------------------------------------------------------------------------
895 generic map( shindex => 4, haddr => 16#A00#,
896 hirq => 10, pindex => 12,
897 paddr => 12, mhindex => CFG_NCPU+CFG_AHB_UART+CFG_GRETH+CFG_AHB_JTAG+
898 CFG_SVGA_ENABLE+CFG_SPW_NUM*CFG_SPW_EN+CFG_GRUSB_DCL+
899 CFG_GRUSBDC+CFG_ATA )
900 port map(rst => rstn, clk => clkm, ahbmi => ahbmi,
901 ahbmo => ahbmo(CFG_NCPU+CFG_AHB_UART+CFG_GRETH+CFG_AHB_JTAG+
902 CFG_SVGA_ENABLE+CFG_SPW_NUM*CFG_SPW_EN+CFG_GRUSB_DCL+
903 CFG_GRUSBDC+CFG_ATA), ahbsi => ahbsi, ahbso => ahbso(4),
904 apbi => apbi, apbo => apbo(12)
909 -----------------------------------------------------------------------
910 --- Drive unused bus elements ---------------------------------------
911 -----------------------------------------------------------------------
913 -- nam1 : for i in (CFG_NCPU+CFG_AHB_UART+CFG_GRETH+CFG_AHB_JTAG) to NAHBMST-1 generate
914 -- ahbmo(i) <= ahbm_none;
916 -- nap0 : for i in 11 to NAPBSLV-1 generate apbo(i) <= apb_none; end generate;
917 -- nah0 : for i in 8 to NAHBSLV-1 generate ahbso(i) <= ahbs_none; end generate;
919 -----------------------------------------------------------------------
920 --- Boot message ----------------------------------------------------
921 -----------------------------------------------------------------------
923 -- pragma translate_off
926 msg1 => "LEON3 GR-XC3S-1500 Demonstration design",
927 msg2 => "GRLIB Version " & tost(LIBVHDL_VERSION/1000) & "." & tost((LIBVHDL_VERSION mod 1000)/100)
928 & "." & tost(LIBVHDL_VERSION mod 100) & ", build " & tost(LIBVHDL_BUILD),
929 msg3 => "Target technology: " & tech_table(fabtech) & ", memory library: " & tech_table(memtech),
932 -- pragma translate_on