Replace MIT license with GPL-3.0-only.

.github/workflows/ci.yml

@@ -1,6 +1,6 @@
-# SPDX-FileCopyrightText: 2025 IObundle
+# SPDX-FileCopyrightText: 2026 IObundle
 #
-# SPDX-License-Identifier: MIT
+# SPDX-License-Identifier: GPL-3.0-only
 
 name: CI
 
@@ -27,7 +27,7 @@ jobs:
 
   simulation:
     runs-on: self-hosted
-    timeout-minutes: 30
+    timeout-minutes: 40
     # run even if previous job failed
     if: ${{ !cancelled() }}
 

Makefile

@@ -1,6 +1,6 @@
-# SPDX-FileCopyrightText: 2025 IObundle
+# SPDX-FileCopyrightText: 2026 IObundle
 #
-# SPDX-License-Identifier: MIT
+# SPDX-License-Identifier: GPL-3.0-only
 
 CORE := soc_linux
 

README.md

@@ -1,7 +1,7 @@
 <!--
-SPDX-FileCopyrightText: 2025 IObundle
+SPDX-FileCopyrightText: 2026 IObundle
 
-SPDX-License-Identifier: MIT
+SPDX-License-Identifier: GPL-3.0-only
 -->
 
 # SoCLinux Project

default.nix

@@ -1,6 +1,6 @@
-# SPDX-FileCopyrightText: 2025 IObundle
+# SPDX-FileCopyrightText: 2026 IObundle
 #
-# SPDX-License-Identifier: MIT
+# SPDX-License-Identifier: GPL-3.0-only
 
 { pkgs ? import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/25.05.tar.gz") {} }:
 

document/doc_build.mk

@@ -1,6 +1,6 @@
-# SPDX-FileCopyrightText: 2025 IObundle
+# SPDX-FileCopyrightText: 2026 IObundle
 #
-# SPDX-License-Identifier: MIT
+# SPDX-License-Identifier: GPL-3.0-only
 
 # This makefile segment is used at build-time in $(BUILD_DIR)/doc/Makefile
 

document/paper/preprint.pdf.license

@@ -1,3 +1,3 @@
-SPDX-FileCopyrightText: 2025 IObundle
+SPDX-FileCopyrightText: 2026 IObundle
 
-SPDX-License-Identifier: MIT
+SPDX-License-Identifier: GPL-3.0-only

document/sd.pdf.license

@@ -1,3 +1,3 @@
-SPDX-FileCopyrightText: 2025 IObundle
+SPDX-FileCopyrightText: 2026 IObundle
 
-SPDX-License-Identifier: MIT
+SPDX-License-Identifier: GPL-3.0-only

document/tsrc/sd.tex

@@ -1,6 +1,6 @@
-% SPDX-FileCopyrightText: 2025 IObundle
+% SPDX-FileCopyrightText: 2026 IObundle
 %
-% SPDX-License-Identifier: MIT
+% SPDX-License-Identifier: GPL-3.0-only
 
 \documentclass{ug}
 

document/tsrc/sd_architecture.tex

@@ -1,6 +1,6 @@
-% SPDX-FileCopyrightText: 2025 IObundle
+% SPDX-FileCopyrightText: 2026 IObundle
 %
-% SPDX-License-Identifier: MIT
+% SPDX-License-Identifier: GPL-3.0-only
 
 The SoCLinux system architecture is built upon the Py2HWSW framework, which enables the seamless integration of hardware and software components. The system consists of the following key elements:
 

document/tsrc/sd_future_work.tex

@@ -1,6 +1,6 @@
-% SPDX-FileCopyrightText: 2025 IObundle
+% SPDX-FileCopyrightText: 2026 IObundle
 %
-% SPDX-License-Identifier: MIT
+% SPDX-License-Identifier: GPL-3.0-only
 
 The remaining work for the SoCLinux project focuses on full system integration and the development of specialized IP drivers.
 

document/tsrc/sd_intro.tex

@@ -1,6 +1,6 @@
-% SPDX-FileCopyrightText: 2025 IObundle
+% SPDX-FileCopyrightText: 2026 IObundle
 %
-% SPDX-License-Identifier: MIT
+% SPDX-License-Identifier: GPL-3.0-only
 
 SoCLinux is an open-source project that aims to configure and generate a Linux system for RISC-V processors, focusing on creating a robust and maintainable environment for designing and testing IP cores.
 

document/tsrc/sd_milestone_details.tex

@@ -1,6 +1,6 @@
-% SPDX-FileCopyrightText: 2025 IObundle
+% SPDX-FileCopyrightText: 2026 IObundle
 %
-% SPDX-License-Identifier: MIT
+% SPDX-License-Identifier: GPL-3.0-only
 
 \section{Milestone Implementation Details}
 \label{sec:milestone_details}

document/tsrc/sd_milestones.tex

@@ -1,6 +1,6 @@
-% SPDX-FileCopyrightText: 2025 IObundle
+% SPDX-FileCopyrightText: 2026 IObundle
 %
-% SPDX-License-Identifier: MIT
+% SPDX-License-Identifier: GPL-3.0-only
 
 The project plan is organized into the following milestones:
 

document/tsrc/sd_revhist.tex

@@ -1,6 +1,6 @@
-% SPDX-FileCopyrightText: 2025 IObundle
+% SPDX-FileCopyrightText: 2026 IObundle
 %
-% SPDX-License-Identifier: MIT
+% SPDX-License-Identifier: GPL-3.0-only
 
 \subsection*{Document Version History}
 

document/tsrc/sd_title.tex

@@ -1,6 +1,6 @@
-% SPDX-FileCopyrightText: 2025 IObundle
+% SPDX-FileCopyrightText: 2026 IObundle
 %
-% SPDX-License-Identifier: MIT
+% SPDX-License-Identifier: GPL-3.0-only
 
 \title{%
 \Huge {\bf SoCLinux} \\

document/tsrc/sd_verification.tex

@@ -1,6 +1,6 @@
-% SPDX-FileCopyrightText: 2025 IObundle
+% SPDX-FileCopyrightText: 2026 IObundle
 %
-% SPDX-License-Identifier: MIT
+% SPDX-License-Identifier: GPL-3.0-only
 
 The SoCLinux verification strategy is based on a hierarchical approach:
 

hardware/fpga/child2_fpga_build.mk

@@ -1,6 +1,6 @@
 # SPDX-FileCopyrightText: 2026 IObundle
 #
-# SPDX-License-Identifier: MIT
+# SPDX-License-Identifier: GPL-3.0-only
 
 # SoC-Linux specific makefile segment (level 2 child - child of iob_system_linux)
 

hardware/fpga/minicom_cache_demo.txt.license

@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2026 IObundle
+
+SPDX-License-Identifier: GPL-3.0-only

hardware/fpga/minicom_cpu_demo.txt.license

@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2026 IObundle
+
+SPDX-License-Identifier: GPL-3.0-only

hardware/fpga/minicom_eth_demo.txt.license

@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2026 IObundle
+
+SPDX-License-Identifier: GPL-3.0-only

hardware/fpga/minicom_uart_demo.txt.license

@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2026 IObundle
+
+SPDX-License-Identifier: GPL-3.0-only

hardware/fpga/minicom_video_demo.txt.license

@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2026 IObundle
+
+SPDX-License-Identifier: GPL-3.0-only

hardware/fpga/video_demo.sh

@@ -2,7 +2,7 @@
 
 # SPDX-FileCopyrightText: 2026 IObundle
 #
-# SPDX-License-Identifier: MIT
+# SPDX-License-Identifier: GPL-3.0-only
 
 # Exit immediately if a command exits with a non-zero status
 set -e

linux_targets.mk

@@ -1,6 +1,6 @@
-# SPDX-FileCopyrightText: 2025 IObundle
+# SPDX-FileCopyrightText: 2026 IObundle
 #
-# SPDX-License-Identifier: MIT
+# SPDX-License-Identifier: GPL-3.0-only
 
 #
 # Configuration variables

soc_linux.py

@@ -1,6 +1,6 @@
-# SPDX-FileCopyrightText: 2025 IObundle
+# SPDX-FileCopyrightText: 2026 IObundle
 #
-# SPDX-License-Identifier: MIT
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 def setup(py_params: dict):

software/iob_cache_dma_test/Makefile

@@ -1,6 +1,6 @@
 # SPDX-FileCopyrightText: 2026 IObundle
 #
-# SPDX-License-Identifier: MIT
+# SPDX-License-Identifier: GPL-3.0-only
 
 CC = riscv64-unknown-linux-gnu-gcc
 FLAGS = -Wall -Werror -O2 -static -march=rv32imac -mabi=ilp32

software/iob_cache_dma_test/iob_cache_dma_test.c

@@ -1,7 +1,7 @@
 /*
  * SPDX-FileCopyrightText: 2026 IObundle
  *
- * SPDX-License-Identifier: MIT
+ * SPDX-License-Identifier: GPL-3.0-only
  */
 
 #include <stdio.h>

software/iob_cache_dma_test/iob_cache_dma_test.license

@@ -1,3 +1,3 @@
 SPDX-FileCopyrightText: 2026 IObundle
 
-SPDX-License-Identifier: MIT
+SPDX-License-Identifier: GPL-3.0-only

software/src/soc_linux_firmware.c

@@ -1,7 +1,7 @@
 /*
- * SPDX-FileCopyrightText: 2025 IObundle
+ * SPDX-FileCopyrightText: 2026 IObundle
  *
- * SPDX-License-Identifier: MIT
+ * SPDX-License-Identifier: GPL-3.0-only
  */
 
 #include "clint.h"

software/sw_build.mk

@@ -1,6 +1,6 @@
 # SPDX-FileCopyrightText: 2026 IObundle
 #
-# SPDX-License-Identifier: MIT
+# SPDX-License-Identifier: GPL-3.0-only
 
 #########################################
 #            Embedded targets           #