From 8fdb2a784e44b144f53de2ba096d83e61e5cd6ea Mon Sep 17 00:00:00 2001
From: stnolting <stnolting@gmail.com>
Date: Sat, 29 Mar 2025 20:58:12 +0100
Subject: [PATCH] [vivad_ip] add new hw spinlock configuration

---
 rtl/system_integration/neorv32_vivado_ip.tcl | 5 +++++
 rtl/system_integration/neorv32_vivado_ip.vhd | 7 +++++--
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/rtl/system_integration/neorv32_vivado_ip.tcl b/rtl/system_integration/neorv32_vivado_ip.tcl
index 2a9dff61..c330d80f 100644
--- a/rtl/system_integration/neorv32_vivado_ip.tcl
+++ b/rtl/system_integration/neorv32_vivado_ip.tcl
@@ -409,6 +409,11 @@ proc setup_ip_gui {} {
   add_params $group {
     { IO_CRC_EN {Enable CRC} }
   }
+
+  set group [add_group $page {Hardware Spinlocks (HWSPINLOCK)}]
+  add_params $group {
+    { IO_HWSPINLOCK_EN {Implement 32 HW-based spinlocks} }
+  }
 }
 
 setup_ip_gui
diff --git a/rtl/system_integration/neorv32_vivado_ip.vhd b/rtl/system_integration/neorv32_vivado_ip.vhd
index 915cfb23..40587f49 100644
--- a/rtl/system_integration/neorv32_vivado_ip.vhd
+++ b/rtl/system_integration/neorv32_vivado_ip.vhd
@@ -129,7 +129,9 @@ entity neorv32_vivado_ip is
     IO_SLINK_EN           : boolean                        := false;
     IO_SLINK_RX_FIFO      : natural range 1 to 2**15       := 1;
     IO_SLINK_TX_FIFO      : natural range 1 to 2**15       := 1;
-    IO_CRC_EN             : boolean                        := false
+    IO_CRC_EN             : boolean                        := false;
+    IO_HWSPINLOCK_EN      : boolean                        := false
+
   );
   port (
     -- ------------------------------------------------------------
@@ -439,7 +441,8 @@ begin
     IO_SLINK_EN           => IO_SLINK_EN,
     IO_SLINK_RX_FIFO      => IO_SLINK_RX_FIFO,
     IO_SLINK_TX_FIFO      => IO_SLINK_TX_FIFO,
-    IO_CRC_EN             => IO_CRC_EN
+    IO_CRC_EN             => IO_CRC_EN,
+    IO_HWSPINLOCK_EN      => IO_HWSPINLOCK_EN
   )
   port map (
     -- Global control --