From 6e6c51dd277de705f0828d1091cce5d64543c60d Mon Sep 17 00:00:00 2001
From: Laszlo Nagy <laszlo.nagy@analog.com>
Date: Tue, 19 Jan 2021 15:22:41 +0000
Subject: [PATCH] common/a10soc: Bridge support

---
 projects/common/a10soc/a10soc_system_qsys.tcl | 21 ++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

diff --git a/projects/common/a10soc/a10soc_system_qsys.tcl b/projects/common/a10soc/a10soc_system_qsys.tcl
index ea98172f7..b69da169a 100644
--- a/projects/common/a10soc/a10soc_system_qsys.tcl
+++ b/projects/common/a10soc/a10soc_system_qsys.tcl
@@ -195,10 +195,25 @@ proc ad_cpu_interrupt {m_irq m_port} {
   set_connection_parameter_value sys_hps.f2h_irq0/${m_port} irqNumber ${m_irq}
 }
 
-proc ad_cpu_interconnect {m_base m_port} {
+proc ad_cpu_interconnect {m_base m_port {avl_bridge ""} {avl_bridge_base 0x00000000} {avl_address_width 18}} {
 
-  add_connection sys_hps.h2f_lw_axi_master ${m_port}
-  set_connection_parameter_value sys_hps.h2f_lw_axi_master/${m_port} baseAddress ${m_base}
+  if {[string equal ${avl_bridge} ""]} {
+    add_connection sys_hps.h2f_lw_axi_master ${m_port}
+    set_connection_parameter_value sys_hps.h2f_lw_axi_master/${m_port} baseAddress ${m_base}
+  } else {
+    if {[lsearch -exact [get_instances] ${avl_bridge}] == -1} {
+      ## Instantiate the bridge and connect the interfaces
+      add_instance ${avl_bridge} altera_avalon_mm_bridge
+      set_instance_parameter_value ${avl_bridge} {ADDRESS_WIDTH} $avl_address_width
+      set_instance_parameter_value ${avl_bridge} {SYNC_RESET} {1}
+      add_connection sys_hps.h2f_lw_axi_master ${avl_bridge}.s0
+      set_connection_parameter_value sys_hps.h2f_lw_axi_master/${avl_bridge}.s0 baseAddress ${avl_bridge_base}
+      add_connection sys_clk.clk ${avl_bridge}.clk
+      add_connection sys_clk.clk_reset ${avl_bridge}.reset
+    }
+    add_connection ${avl_bridge}.m0 ${m_port}
+    set_connection_parameter_value ${avl_bridge}.m0/${m_port} baseAddress ${m_base}
+  }
 }
 
 proc ad_dma_interconnect {m_port} {