Add Linux iob_eth validation tests

default.nix

@@ -5,8 +5,8 @@
 { pkgs ? import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/25.05.tar.gz") {} }:
 
 let
-  py2hwsw_commit = "21b1f2db283dc72d3ad62995f3457c16f77592b0"; # Replace with the desired commit.
-  py2hwsw_sha256 = "XmNwIx3p5uhjueZ5vlNZvZbrR1ja2UiQ+B22ekFDxdI="; # Replace with the actual SHA256 hash.
+  py2hwsw_commit = "3ba45fe1420f3b1ef67903c90f652172f8697949"; # Replace with the desired commit.
+  py2hwsw_sha256 = "5ANpITrAKXw8DX+uCnyPDueEoBRpYpCMgOwSA1gqO70="; # Replace with the actual SHA256 hash.
   # Get local py2hwsw root from `PY2HWSW_ROOT` env variable
   py2hwswRoot = builtins.getEnv "PY2HWSW_ROOT";
 

hardware/fpga/child2_fpga_build.mk

@@ -20,6 +20,18 @@ ifeq ($(UART_DEMO),1)
 MINICOM_SCRIPT=minicom_uart_demo.txt
 endif
 
+# Pass ETH_DEMO flag to remote systems
+UFLAGS+=ETH_DEMO=$(ETH_DEMO)
+
+ifeq ($(ETH_DEMO),1)
+GRAB_TIMEOUT= 1500
+MINICOM_SCRIPT=minicom_eth_demo.txt
+CONSOLE_CMD += && ( cd ../../software/tests/iob_eth && ./validate_eth.sh -S root -p root -s 192.168.74.2 -i $(ETH_IF) )
+# # Override CONSOLE_CMD: skip minicom (appended by child_fpga_build.mk) and run eth test instead
+# # Use = (deferred expansion) to preserve variable references for later expansion
+# CONSOLE_CMD = $(IOB_CONSOLE_PYTHON_ENV) $(PYTHON_DIR)/console_ethernet.py -s $(BOARD_SERIAL_PORT) -c $(PYTHON_DIR)/console.py -m "$(RMAC_ADDR)" -i "$(ETH_IF)" && ( cd ../../software/tests/iob_eth && ./validate_eth.sh -S root -p root -s 192.168.74.2 -i $(ETH_IF) )
+endif
+
 # include fpga build segment of (level 3) child systems
 # child systems can add their own child3_fpga_build.mk without having to override this one.
 ifneq ($(wildcard child3_fpga_build.mk),)

hardware/fpga/minicom_cache_demo.txt

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2026 IObundle
+#
+# SPDX-License-Identifier: MIT
+
 # Script for "runscript" program of minicom, to test iob_cache (with DMA loopback) in linux
 
 # Set 15min timeout
@@ -19,6 +23,13 @@ print "\n[minicom] Detected login prompt. Logging in..."
 
 send "root"
 
+expect {
+    "Password:"
+    timeout 20 goto on_timeout
+}
+
+send "root"
+
 expect {
     "#"
     timeout 20 goto on_timeout

hardware/fpga/minicom_eth_demo.txt

@@ -0,0 +1,60 @@
+# SPDX-FileCopyrightText: 2026 IObundle
+#
+# SPDX-License-Identifier: MIT
+
+# Script for "runscript" program of minicom, to test two iob_uart16550 instances in linux
+
+# Set 15min timeout
+# runscript has 2min timeout by default:
+# check `timeout` in: https://linux.die.net/man/1/runscript
+timeout 900
+
+# Wait for the "buildroot login:" message
+# Or jump straight to shell if we are already logged in
+print "\n[minicom] Waiting for buildroot login..."
+send ""
+expect {
+    "buildroot login:"
+    "\n#" goto post_login
+    timeout 300 goto on_timeout
+}
+
+print "\n[minicom] Detected login prompt. Logging in..."
+
+send "root"
+
+expect {
+    "Password:"
+    timeout 20 goto on_timeout
+}
+
+send "root"
+
+expect {
+    "#"
+    timeout 20 goto on_timeout
+}
+
+post_login:
+
+#
+# Run tests
+#
+
+print "\n[minicom] Logged in. Running tests..."
+
+print "\n[minicom] Exit minicom to run standalone iob_eth test"
+
+# Exit minicom
+! kill `cut -f4 -d' ' /proc/$PPID/stat`
+
+
+# Jump here when timeout is triggered
+on_timeout:
+
+print "\n[minicom] Timeout reached. Exiting..."
+
+# Exit minicom
+! kill `cut -f4 -d' ' /proc/$PPID/stat`
+
+

hardware/fpga/minicom_uart_demo.txt

@@ -23,6 +23,13 @@ print "\n[minicom] Detected login prompt. Logging in..."
 
 send "root"
 
+expect {
+    "Password:"
+    timeout 20 goto on_timeout
+}
+
+send "root"
+
 expect {
     "#"
     timeout 20 goto on_timeout