remove synchronizers

efabless · Aug 11, 2024 · 43965e6 · 43965e6
1 parent e05c0e7
commit 43965e6
Show file tree

Hide file tree

Showing 2 changed files with 4 additions and 50 deletions.
diff --git a/hdl/rtl/bus_wrappers/EF_I2C_APB.pp.v b/hdl/rtl/bus_wrappers/EF_I2C_APB.pp.v
@@ -122,30 +122,6 @@ module EF_I2C_APB # (
                     (PADDR[15:0] == GCLK_REG_ADDR)  ? {23'b0, GCLK_REG}   :
                     32'hDEADBEEF;
 
-
-    reg [0:0]	_scl_i_reg_[1:0];
-    wire		_scl_i_w_ = _scl_i_reg_[1];
-    always@(posedge PCLK or negedge PRESETn)
-        if(PRESETn == 0) begin
-            _scl_i_reg_[0] <= 'b0;
-            _scl_i_reg_[1] <= 'b0;
-        end
-        else begin
-            _scl_i_reg_[0] <= scl_i;
-            _scl_i_reg_[1] <= _scl_i_reg_[0];
-        end
-
-    reg [0:0]	_sda_i_reg_[1:0];
-    wire		_sda_i_w_ = _sda_i_reg_[1];
-    always@(posedge PCLK or negedge PRESETn)
-        if(PRESETn == 0) begin
-            _sda_i_reg_[0] <= 'b0;
-            _sda_i_reg_[1] <= 'b0;
-        end
-        else begin
-            _sda_i_reg_[0] <= sda_i;
-            _sda_i_reg_[1] <= _sda_i_reg_[0];
-        end
 
     i2c_master_wbs_16 #
     (
@@ -175,10 +151,10 @@ module EF_I2C_APB # (
         .wbs_cyc_i(wbs_cyc_i),   // CYC_I cycle input
 
         // I2C interface
-        .i2c_scl_i(_scl_i_w_),
+        .i2c_scl_i(scl_i),
         .i2c_scl_o(scl_o),
         .i2c_scl_t(scl_oen_o),
-        .i2c_sda_i(_sda_i_w_),
+        .i2c_sda_i(sda_i),
         .i2c_sda_o(sda_o),
         .i2c_sda_t(sda_oen_o),
 

diff --git a/hdl/rtl/bus_wrappers/EF_I2C_APB.v b/hdl/rtl/bus_wrappers/EF_I2C_APB.v
@@ -133,29 +133,7 @@ module EF_I2C_APB # (
                     (PADDR[15:0] == GCLK_REG_ADDR)  ? {23'b0, GCLK_REG}   :
                     32'hDEADBEEF;
 
-    reg [0:0]	_scl_i_reg_[1:0];
-    wire		_scl_i_w_ = _scl_i_reg_[1];
-    always@(posedge PCLK or negedge PRESETn)
-        if(PRESETn == 0) begin
-            _scl_i_reg_[0] <= 'b0;
-            _scl_i_reg_[1] <= 'b0;
-        end
-        else begin
-            _scl_i_reg_[0] <= scl_i;
-            _scl_i_reg_[1] <= _scl_i_reg_[0];
-        end
 
-    reg [0:0]	_sda_i_reg_[1:0];
-    wire		_sda_i_w_ = _sda_i_reg_[1];
-    always@(posedge PCLK or negedge PRESETn)
-        if(PRESETn == 0) begin
-            _sda_i_reg_[0] <= 'b0;
-            _sda_i_reg_[1] <= 'b0;
-        end
-        else begin
-            _sda_i_reg_[0] <= sda_i;
-            _sda_i_reg_[1] <= _sda_i_reg_[0];
-        end
     i2c_master_wbs_16 #
     (
         .DEFAULT_PRESCALE(DEFAULT_PRESCALE),
@@ -184,10 +162,10 @@ module EF_I2C_APB # (
         .wbs_cyc_i(wbs_cyc_i),   // CYC_I cycle input
 
         // I2C interface
-        .i2c_scl_i(_scl_i_w_),
+        .i2c_scl_i(scl_i),
         .i2c_scl_o(scl_o),
         .i2c_scl_t(scl_oen_o),
-        .i2c_sda_i(_sda_i_w_),
+        .i2c_sda_i(sda_i),
         .i2c_sda_o(sda_o),
         .i2c_sda_t(sda_oen_o),