Add Sony PlayStation support to Libreboot

I also added a "cleanargs" argument, similar to the makeargs
argument, to work around a build error.

This builds the PCSX-Redux PS1 BIOS. They reverse engineered
the Sony PS1 BIOS and wrote a free one under MIT license.

Run this:

./mk -b pcsx-redux

The file will appear: bin/playstation/openbios.bin

Signed-off-by: Leah Rowe <leah@libreboot.org>

5 files changed, 57 insertions, 6 deletions

diff --git a/config/data/pcsx-redux/mkhelper.cfg b/config/data/pcsx-redux/mkhelper.cfg
new file mode 100644
index 00000000..379ad032
--- /dev/null
+++ b/config/data/pcsx-redux/mkhelper.cfg
@@ -0,0 +1,3 @@
+. "include/rom.sh"
+
+postmake="copyps1bios"
diff --git a/config/pcsx-redux/patches/0001-no-context-will-be-given.patch b/config/pcsx-redux/patches/0001-no-context-will-be-given.patch
new file mode 100644
index 00000000..b2968c11
--- /dev/null
+++ b/config/pcsx-redux/patches/0001-no-context-will-be-given.patch
@@ -0,0 +1,36 @@
+From 6516ecaea03845cd07732bd4ca8c32cd08ea4281 Mon Sep 17 00:00:00 2001
+From: Leah Rowe <info@minifree.org>
+Date: Wed, 25 Sep 2024 23:45:56 +0100
+Subject: [PATCH 1/1] no context will be given.
+
+Signed-off-by: Leah Rowe <info@minifree.org>
+---
+ lbmkbofhmakefile | 16 ++++++++++++++++
+ 1 file changed, 16 insertions(+)
+ create mode 100644 lbmkbofhmakefile
+
+diff --git a/lbmkbofhmakefile b/lbmkbofhmakefile
+new file mode 100644
+index 00000000..fe2e36d2
+--- /dev/null
++++ b/lbmkbofhmakefile
+@@ -0,0 +1,16 @@
++# SPDX-License-Identifier: MIT
++# SPDX-FileCopyrightText: 2024 Leah Rowe <leah@libreboot.org>
++
++# This is not the original pcsx-redux Makefile.
++# We don't need to build all of PCSX-Redux, only the Open BIOS.
++# Due to idiosyncrasies of lbmk's design, it's simpler to just hack
++# the Makefile like this.
++
++all:
++	make -C src/mips/openbios
++
++clean:
++	make -C src/mips/openbios clean
++
++distclean:
++	make -C src/mips/openbios clean
+-- 
+2.39.5
+
diff --git a/config/pcsx-redux/target.cfg b/config/pcsx-redux/target.cfg
new file mode 100644
index 00000000..21dc4b2d
--- /dev/null
+++ b/config/pcsx-redux/target.cfg
@@ -0,0 +1,3 @@
+makeargs="-f lbmkbofhmakefile"
+cleanargs="-f lbmkbofhmakefile"
+mkhelper="copyps1bios"
diff --git a/include/rom.sh b/include/rom.sh
index 80643c48..cfd00a86 100644
--- a/include/rom.sh
+++ b/include/rom.sh
@@ -24,6 +24,13 @@ mkserprog()
 	[ "$XBMK_RELEASE" = "y" ] && mkrom_tarball "bin/serprog_$1"; return 0
 }
 
+copyps1bios()
+{
+	x_ rm -Rf bin/playstation
+	x_ mkdir -p bin/playstation
+	x_ cp src/pcsx-redux/src/mips/openbios/openbios.bin bin/playstation
+}
+
 mkpayload_grub()
 {
 	eval `setvars "" grub_modules grub_install_modules`
diff --git a/script/trees b/script/trees
index 01df28a0..5be43dcc 100755
--- a/script/trees
+++ b/script/trees
@@ -12,7 +12,7 @@ set -u -e
 eval `setvars "" xarch srcdir premake cmakedir xlang mode makeargs elfdir cmd \
     project target target_dir targets xtree _f release bootstrapargs mkhelper \
     autoconfargs listfile autogenargs btype tree rev tree_depend build_depend \
-    defconfig postmake mkhelpercfg dry dest_dir mdir`; badhash="n"
+    defconfig postmake mkhelpercfg dry dest_dir mdir cleanargs`; badhash="n"
 
 main()
 {
@@ -111,7 +111,8 @@ handle_defconfig()
 configure_project()
 {
 	eval `setvars "" xarch xlang build_depend autoconfargs xtree postmake \
-	    tree_depend makeargs btype mkhelper bootstrapargs premake release`
+	    tree_depend makeargs btype mkhelper bootstrapargs premake release \
+	    cleanargs`
 	_tcfg="$1/target.cfg"; badhash="n"; [ -f "$_tcfg" ] || btype="auto"
 	[ -f "$datadir/mkhelper.cfg" ] && eval `setcfg "$datadir/mkhelper.cfg"`
 
@@ -224,7 +225,7 @@ elfcheck()
 
 handle_makefile()
 {
-	$dry check_makefile "$srcdir" && x_ make clean -C "$srcdir"
+	$dry check_makefile "$srcdir" && x_ make -C "$srcdir" $cleanargs clean
 	[ -f "$defconfig" ] && x_ cp "$defconfig" "$srcdir/.config"
 	[ -n "$mode" ] || [ -n "$btype" ] || $dry make -C \
 	    "$srcdir" silentoldconfig || make -C "$srcdir" oldconfig || :
@@ -236,7 +237,7 @@ handle_makefile()
 	    $dry x_ cp "$srcdir/$_copy" "$defconfig"
 
 	[ -e "$srcdir/.git" ] && [ "$project" = "u-boot" ] && \
-	    [ "$mode" = "distclean" ] && $dry x_ git -C "$srcdir" clean -fdx; :
+	    [ "$mode" = "distclean" ] && $dry x_ git -C "$srcdir" $cleanargs clean -fdx; :
 }
 
 run_make_command()
@@ -248,7 +249,8 @@ run_make_command()
 	$dry make -C "$srcdir" $mode -j$XBMK_THREADS $makeargs || $err "!$mode"
 	[ -z "$mkhelper" ] || [ -n "$mode" ] || $mkhelper || $err "!$mkhelper"
 
-	[ "$mode" = "clean" ] && $dry make -C "$srcdir" distclean || :; :
+	[ "$mode" = "clean" ] && \
+	    $dry make -C "$srcdir" $cleanargs distclean || :; :
 }
 
 check_cmake()
@@ -280,7 +282,7 @@ copy_elf()
 {
 	[ -f "$listfile" ] && x_ mkdir -p "$dest_dir" && while read -r f; do
 		[ -f "$srcdir/$f" ] && x_ cp "$srcdir/$f" "$dest_dir"
-	done < "$listfile"; x_ make clean -C "$srcdir"
+	done < "$listfile"; x_ make clean -C "$srcdir" $cleanargs
 }
 
 main $@ || exit 0