From e92d06775389c2a19d6b63864191bc0636a63ec8 Mon Sep 17 00:00:00 2001
From: Erik Kooistra <kooistra@astron.nl>
Date: Mon, 22 Dec 2014 16:03:58 +0000
Subject: [PATCH] Use 'RANGE instead of g_wr_fifo_depth to know width of
wr_fifo_usedw.
---
libraries/io/ddr/src/vhdl/io_ddr.vhd | 3 +--
libraries/io/ddr/src/vhdl/io_ddr_driver.vhd | 5 ++---
2 files changed, 3 insertions(+), 5 deletions(-)
diff --git a/libraries/io/ddr/src/vhdl/io_ddr.vhd b/libraries/io/ddr/src/vhdl/io_ddr.vhd
index 2ca84c2153..7ebc7d82ab 100644
--- a/libraries/io/ddr/src/vhdl/io_ddr.vhd
+++ b/libraries/io/ddr/src/vhdl/io_ddr.vhd
@@ -211,8 +211,7 @@ BEGIN
u_io_ddr_driver : ENTITY work.io_ddr_driver
GENERIC MAP (
- g_tech_ddr => g_tech_ddr,
- g_wr_fifo_depth => g_wr_fifo_depth
+ g_tech_ddr => g_tech_ddr
)
PORT MAP (
rst => ctlr_gen_rst,
diff --git a/libraries/io/ddr/src/vhdl/io_ddr_driver.vhd b/libraries/io/ddr/src/vhdl/io_ddr_driver.vhd
index 03124a9bb7..e28a52d8a1 100644
--- a/libraries/io/ddr/src/vhdl/io_ddr_driver.vhd
+++ b/libraries/io/ddr/src/vhdl/io_ddr_driver.vhd
@@ -29,8 +29,7 @@ USE tech_ddr_lib.tech_ddr_pkg.ALL;
ENTITY io_ddr_driver IS
GENERIC (
- g_tech_ddr : t_c_tech_ddr;
- g_wr_fifo_depth : NATURAL := 128
+ g_tech_ddr : t_c_tech_ddr
);
PORT (
clk : IN STD_LOGIC;
@@ -98,7 +97,7 @@ ARCHITECTURE str OF io_ddr_driver IS
SIGNAL addresses_rem : STD_LOGIC_VECTOR(31 DOWNTO 0); -- nof words (on the user side interface) to rd/wr until end addr is reached
SIGNAL reg_addresses_rem : STD_LOGIC_VECTOR(31 DOWNTO 0); -- nof words (on the user side interface) to rd/wr until end addr is reached
- SIGNAL reg_wr_fifo_usedw : STD_LOGIC_VECTOR(ceil_log2(g_wr_fifo_depth)-1 DOWNTO 0); -- read side depth of the write FIFO
+ SIGNAL reg_wr_fifo_usedw : STD_LOGIC_VECTOR(wr_fifo_usedw'RANGE); -- read side depth of the write FIFO
BEGIN
--
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