arp: Rename timeout_tick to systick

design/top_hwitl.vhd

@@ -216,12 +216,12 @@ architecture eth of top_hwitl is
 begin
 	trashernet_arp_inst : entity trashernet.trashernet_arp
 		generic map(
-			TIMEOUT_TICK_FREQ => F_CLK
+			SYSTICK_FREQ => F_CLK
 		)
 		port map(
 			clk             => clk,
 			rst             => rst,
-			timeout_tick    => '1',
+			systick         => '1',
 			mac_config      => ETH_CONFIG,
 			ip_config       => IP_CONFIG,
 			arp_out         => arp_out,

trashernet/trashernet_arp.vhd

@@ -17,13 +17,13 @@ use work.trashernet_pkg.all;
 
 entity trashernet_arp is
 	generic(
-		TIMEOUT_TICK_FREQ : integer
+		SYSTICK_FREQ : integer
 	);
 	port(
 		-- Global
 		clk             : in  std_logic; -- Global clock
 		rst             : in  std_logic; -- Asynchronous reset
-		timeout_tick    : in  std_logic; -- Global timeout tick strobe
+		systick         : in  std_logic; -- Global time reference for slow events (here: timeout)
 
 		-- Configuration
 		mac_config      : in  configuration_t; -- Trashernet MAC configuration
@@ -124,14 +124,14 @@ begin
 
 		timeout_timer_inst : entity work.timer
 			generic map(
-				F_TICK    => TIMEOUT_TICK_FREQ,
+				F_TICK    => SYSTICK_FREQ,
 				DURATION  => ARP_TIMEOUT,
 				AUTOSTART => false
 			)
 			port map(
 				clk         => clk,
 				rst         => rst,
-				tick        => timeout_tick,
+				tick        => systick,
 				start       => arp_tx_request_rq,
 				expired     => query_timeout,
 				expired_stb => open