[Cryptech-Commits] [core/rng/trng] branch master updated: (1) Changed API addresses for ctrl and status registers - HEADSUP: this might break SW that tries to do discard. Updated core version to reflect api changes. (2) Added support for reading discard and test mode bits in control register.

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joachim at secworks.se pushed a commit to branch master
in repository core/rng/trng.

The following commit(s) were added to refs/heads/master by this push:
       new  6afba1f   (1) Changed API addresses for ctrl and status registers - HEADSUP: this might break SW that tries to do discard. Updated core version to reflect api changes. (2) Added support for reading discard and test mode bits in control register.
6afba1f is described below

commit 6afba1ff3ec4b4f6f7e31f788d86206b8b53748d
Author: Joachim Strömbergson <joachim at secworks.se>
Date:   Mon Oct 5 13:11:33 2015 +0200

    (1) Changed API addresses for ctrl and status registers - HEADSUP: this might break SW that tries to do discard. Updated core version to reflect api changes. (2) Added support for reading discard and test mode bits in control register.
---
 src/rtl/trng.v | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/rtl/trng.v b/src/rtl/trng.v
index 728fa39..06af515 100644
--- a/src/rtl/trng.v
+++ b/src/rtl/trng.v
@@ -76,17 +76,18 @@ module trng(
   localparam ADDR_NAME1              = 8'h01;
   localparam ADDR_VERSION            = 8'h02;
 
-  localparam ADDR_TRNG_CTRL          = 8'h10;
+  localparam ADDR_TRNG_CTRL          = 8'h08;
   localparam TRNG_CTRL_DISCARD_BIT   = 0;
   localparam TRNG_CTRL_TEST_MODE_BIT = 1;
 
-  localparam ADDR_TRNG_STATUS        = 8'h11;
+  localparam ADDR_TRNG_STATUS        = 8'h09;
+
   localparam ADDR_DEBUG_CTRL         = 8'h12;
   localparam ADDR_DEBUG_DELAY        = 8'h13;
 
   localparam TRNG_NAME0              = 32'h74726e67; // "trng"
   localparam TRNG_NAME1              = 32'h20202020; // "    "
-  localparam TRNG_VERSION            = 32'h302e3530; // "0.50"
+  localparam TRNG_VERSION            = 32'h302e3531; // "0.51"
 
   // 20x/s @ 50 MHz.
   localparam DEFAULT_DEBUG_DELAY     = 32'h002625a0;
@@ -556,6 +557,7 @@ module trng(
 
                 ADDR_TRNG_CTRL:
                   begin
+                    trng_api_read_data = {30'h0000000, test_mode_reg, discard_reg};
                   end
 
                 ADDR_TRNG_STATUS:

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