# --- T2-COPYRIGHT-NOTE-BEGIN ---
# T2 SDE: architecture/powerpc64/package/*/0260-udbg-lv1-console.patch
# Copyright (C) 2019 - 2022 The T2 SDE Project
# 
# This Copyright note is generated by scripts/Create-CopyPatch,
# more information can be found in the files COPYING and README.
# 
# This patch file is dual-licensed. It is available under the license the
# patched project is licensed under, as long as it is an OpenSource license
# as defined at http://www.opensource.org/ (e.g. BSD, X11) or under the terms
# of the GNU General Public License version 2 as used by the T2 SDE.
# --- T2-COPYRIGHT-NOTE-END ---

--- a/arch/powerpc/platforms/ps3/Kconfig
+++ b/arch/powerpc/platforms/ps3/Kconfig
@@ -237,4 +237,12 @@ config PS3GELIC_UDBG
 
 	  If in doubt, say N here.
 
+config PS3_LV1_CONS_UDBG
+	bool "PS3 udbg output via LV1 console"
+	depends on PPC_PS3
+	help
+	  Enables udbg early debugging output to LV1 console.
+
+	  If in doubt, say N here.
+
 endmenu
--- a/arch/powerpc/platforms/ps3/Makefile
+++ b/arch/powerpc/platforms/ps3/Makefile
@@ -4,6 +4,7 @@ obj-y += interrupt.o exports.o os-area.o
 obj-y += system-bus.o
 
 obj-$(CONFIG_PPC_EARLY_DEBUG_PS3GELIC) += gelic_udbg.o
+obj-$(CONFIG_PS3_LV1_CONS_UDBG) += lv1_cons_udbg.o
 obj-$(CONFIG_SMP) += smp.o
 obj-$(CONFIG_SPU_BASE) += spu.o
 obj-y += device-init.o
--- /dev/null
+++ b/arch/powerpc/platforms/ps3/lv1_cons_udbg.c
@@ -0,0 +1,58 @@
+/*
+ * PS3 LV1 Debug Console
+ *
+ * Copyright (C) 2024 René Rebe <rene@exactcode.de>
+ * Copyright (C) 2013 glevand <geoffrey.levand@mail.ru>
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published
+ * by the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <asm/io.h>
+#include <asm/udbg.h>
+#include <asm/lv1call.h>
+
+#define LV1_CONS_ID		1
+#define LV1_CONS_LENGTH		0xff0
+
+static int initialized = 0;
+
+static void lv1_cons_udbg_putc(char ch)
+{
+	u64 data, written;
+	int ret;
+
+	if (!initialized) {
+		ret = lv1_undocumented_function_105(LV1_CONS_ID, 0, 0,
+			LV1_CONS_LENGTH, LV1_CONS_LENGTH, 0, 0);
+		if ((ret != 0) && (ret != -7))
+			return;
+
+		initialized = 1;
+	}
+
+	data = ch;
+	data <<= 56;
+
+	lv1_undocumented_function_107(LV1_CONS_ID, 1, data, 0, 0, 0, &written);
+
+	/* flush to console buffer in LV1 */
+
+	lv1_undocumented_function_109(LV1_CONS_ID);
+}
+
+void __init udbg_init_ps3_lv1_cons(void)
+{
+	udbg_putc = lv1_cons_udbg_putc;
+}
--- a/arch/powerpc/Kconfig.debug
+++ b/arch/powerpc/Kconfig.debug
@@ -256,6 +256,14 @@ config PPC_EARLY_DEBUG_PS3GELIC
 	  Select this to enable early debugging for the PlayStation3 via
 	  UDP broadcasts sent out through the Ethernet port.
 
+config PPC_EARLY_DEBUG_PS3_LV1_CONS
+	bool "Early debugging through the PS3 LV1 console"
+	depends on PPC_PS3
+	select PS3_LV1_CONS_UDBG
+	help
+	  Select this to enable early debugging for the PlayStation3 via
+	  LV1 debug console.
+
 config PPC_EARLY_DEBUG_OPAL_RAW
 	bool "OPAL raw console"
 	depends on HVC_OPAL
--- linux-6.1/arch/powerpc/include/asm/udbg.h.vanilla	2022-12-21 13:04:59.885429328 +0100
+++ linux-6.1/arch/powerpc/include/asm/udbg.h	2022-12-21 13:05:14.743428236 +0100
@@ -50,6 +50,7 @@
 void __init udbg_init_memcons(void);
 void __init udbg_init_ehv_bc(void);
 void __init udbg_init_ps3gelic(void);
+void __init udbg_init_ps3_lv1_cons(void);
 void __init udbg_init_debug_opal_raw(void);
 void __init udbg_init_debug_opal_hvsi(void);
 void __init udbg_init_debug_16550(void);
--- a/arch/powerpc/kernel/udbg.c
+++ b/arch/powerpc/kernel/udbg.c
@@ -63,6 +63,8 @@ void __init udbg_early_init(void)
 	udbg_init_ehv_bc();
 #elif defined(CONFIG_PPC_EARLY_DEBUG_PS3GELIC)
 	udbg_init_ps3gelic();
+#elif defined(CONFIG_PPC_EARLY_DEBUG_PS3_LV1_CONS)
+	udbg_init_ps3_lv1_cons();
 #elif defined(CONFIG_PPC_EARLY_DEBUG_OPAL_RAW)
 	udbg_init_debug_opal_raw();
 #elif defined(CONFIG_PPC_EARLY_DEBUG_OPAL_HVSI)