From b4cbef36ad73ebc8c8521e33e14a33c86ee392c1 Mon Sep 17 00:00:00 2001
From: matt
Date: Sat, 11 Oct 2008 23:04:06 +0000
Subject: New serdes status interrupt, clk_status interrupt.  New capability to
 flush the ICache.

git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@9779 221aa14e-8319-0410-a670-987f0aec2ac5
---
 usrp2/fpga/control_lib/icache.v         | 5 +++--
 usrp2/fpga/control_lib/ram_harv_cache.v | 7 +++++--
 2 files changed, 8 insertions(+), 4 deletions(-)

(limited to 'usrp2/fpga/control_lib')

diff --git a/usrp2/fpga/control_lib/icache.v b/usrp2/fpga/control_lib/icache.v
index dd93c88ed..bd21f47cc 100644
--- a/usrp2/fpga/control_lib/icache.v
+++ b/usrp2/fpga/control_lib/icache.v
@@ -11,7 +11,8 @@ module icache
      output iwb_ack_o,
      input [31:0] iram_dat_i,
      output [AWIDTH-1:0] iram_adr_o,
-     output iram_en_o );
+     output iram_en_o,
+     input flush);
 
    localparam TAGWIDTH = AWIDTH-CWIDTH-2;
    reg 	      stb_d1, ack_d1, miss_d1;
@@ -28,7 +29,7 @@ module icache
    // Write into cache
    integer 	      i;
    always @(posedge wb_clk_i)
-     if(wb_rst_i)
+     if(wb_rst_i | flush)
        for(i=0;i<(1<<CWIDTH);i=i+1)
 	 ivalid[i] <= 0;
      else
diff --git a/usrp2/fpga/control_lib/ram_harv_cache.v b/usrp2/fpga/control_lib/ram_harv_cache.v
index 933f9ba1a..29fdebf7a 100644
--- a/usrp2/fpga/control_lib/ram_harv_cache.v
+++ b/usrp2/fpga/control_lib/ram_harv_cache.v
@@ -25,7 +25,9 @@ module ram_harv_cache
      input dwb_we_i,
      output dwb_ack_o,
      input dwb_stb_i,
-     input [3:0] dwb_sel_i );
+     input [3:0] dwb_sel_i,
+
+     input flush_icache );
 
    wire [31:0] 	 iram_dat, dram_dat_i, dram_dat_o;
    wire [AWIDTH-1:0] iram_adr, dram_adr;
@@ -60,7 +62,8 @@ module ram_harv_cache
      icache(.wb_clk_i(wb_clk_i),.wb_rst_i(wb_rst_i),
 	    .iwb_adr_i(iwb_adr_i),.iwb_stb_i(iwb_stb_i),
 	    .iwb_dat_o(iwb_dat_o),.iwb_ack_o(iwb_ack_o),
-	    .iram_dat_i(iram_dat),.iram_adr_o(iram_adr),.iram_en_o(iram_en) );
+	    .iram_dat_i(iram_dat),.iram_adr_o(iram_adr),.iram_en_o(iram_en),
+	    .flush(flush_icache));
 
    // RAM loader
    assign 	 ram_loader_ack_o = ram_loader_stb_i;
-- 
cgit