From d6a1e022e17664690089e4228283eb2e9b697c7a Mon Sep 17 00:00:00 2001
From: YRabbit <rabbit@yrabbit.cyou>
Date: Wed, 11 Jan 2023 11:41:29 +1000
Subject: [PATCH] gowin: add a new type of PLL - PLLVR

This primitive is used in the GW1NS-4, GW1NS-4C, GW1NSR-4, GW1NSR-4C and
GW1NSER-4C chips.

Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
---
 techlibs/gowin/cells_sim.v | 47 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/techlibs/gowin/cells_sim.v b/techlibs/gowin/cells_sim.v
index 736aa0707..ab8207ef1 100644
--- a/techlibs/gowin/cells_sim.v
+++ b/techlibs/gowin/cells_sim.v
@@ -1552,6 +1552,53 @@ parameter DEVICE = "GW1N-1";        // "GW1N-1", "GW1N-4", "GW1N-9", "GW1NR-4",
 
 endmodule
 
+(* blackbox *)
+module PLLVR (CLKOUT, CLKOUTP, CLKOUTD, CLKOUTD3, LOCK, CLKIN, CLKFB, FBDSEL, IDSEL, ODSEL, DUTYDA, PSDA, FDLY, RESET, RESET_P, VREN);
+input CLKIN;
+input CLKFB;
+input RESET;
+input RESET_P;
+input [5:0] FBDSEL;
+input [5:0] IDSEL;
+input [5:0] ODSEL;
+input [3:0] PSDA,FDLY;
+input [3:0] DUTYDA;
+input VREN;
+
+output CLKOUT;
+output LOCK;
+output CLKOUTP;
+output CLKOUTD;
+output CLKOUTD3;
+
+parameter FCLKIN = "100.0";         // frequency of CLKIN
+parameter DYN_IDIV_SEL= "false";    // true:IDSEL, false:IDIV_SEL
+parameter IDIV_SEL = 0;             // 0:1, 1:2 ... 63:64
+parameter DYN_FBDIV_SEL= "false";   // true:FBDSEL, false:FBDIV_SEL
+parameter FBDIV_SEL = 0;            // 0:1, 1:2 ... 63:64
+parameter DYN_ODIV_SEL= "false";    // true:ODSEL, false:ODIV_SEL
+parameter ODIV_SEL = 8;             // 2/4/8/16/32/48/64/80/96/112/128
+
+parameter PSDA_SEL= "0000";
+parameter DYN_DA_EN = "false";      // true:PSDA or DUTYDA or FDA, false: DA_SEL
+parameter DUTYDA_SEL= "1000";
+
+parameter CLKOUT_FT_DIR = 1'b1;     // CLKOUT fine tuning direction. 1'b1 only
+parameter CLKOUTP_FT_DIR = 1'b1;    // 1'b1 only
+parameter CLKOUT_DLY_STEP = 0;      // 0, 1, 2, 4
+parameter CLKOUTP_DLY_STEP = 0;     // 0, 1, 2
+
+parameter CLKFB_SEL = "internal";   // "internal", "external"
+parameter CLKOUT_BYPASS = "false";  // "true", "false"
+parameter CLKOUTP_BYPASS = "false"; // "true", "false"
+parameter CLKOUTD_BYPASS = "false"; // "true", "false"
+parameter DYN_SDIV_SEL = 2;         // 2~128, only even numbers
+parameter CLKOUTD_SRC =  "CLKOUT";  // CLKOUT, CLKOUTP
+parameter CLKOUTD3_SRC = "CLKOUT";  // CLKOUT, CLKOUTP
+parameter DEVICE = "GW1NS-4";       // "GW1NS-4", "GW1NS-4C", "GW1NSR-4", "GW1NSR-4C", "GW1NSER-4C"
+
+endmodule
+
 (* blackbox *)
 module OSC(OSCOUT);
 output OSCOUT;