l4t: Add L4T loader for T210 and T210B01

Makefile

@@ -26,7 +26,7 @@ OBJS = $(addprefix $(BUILDDIR)/$(TARGET)/, \
 	start.o exception_handlers.o \
 	main.o heap.o \
 	gfx.o logos.o tui.o \
-	fe_info.o fe_tools.o \
+	l4t.o fe_info.o fe_tools.o \
 )
 
 # Hardware.

README.md

@@ -113,6 +113,12 @@ There are four possible type of entries. "**[ ]**": Boot entry, "**{ }**": Capti
 | ---------------------- | ---------------------------------------------------------- |
 | payload={FILE path}    | Payload launching. Tools, Android/Linux, CFW bootloaders, etc. Any key above when used with that, doesn't get into account. |
 | ---------------------- | ---------------------------------------------------------- |
+| l4t=1                  | L4T Linux/Android native launching.                        |
+| boot_prefixes={FOLDER path} | L4T bootstack directory.                              |
+| ram_oc=0               | L4T RAM Overclocking. Check README_CONFIG.txt for more info. |
+| uart_port=0            | Enables logging on serial port for L4T uboot/kernel.       |
+| Additional keys        | Each distro supports more keys. Check README_CONFIG.txt  for more info. |
+| ---------------------- | ---------------------------------------------------------- |
 | id=IDNAME              | Identifies boot entry for forced boot via id. Max 7 chars. |
 | logopath={FILE path}   | If it exists, it will load the specified bitmap. Otherwise `bootloader/bootlogo.bmp` will be used if exists |
 | icon={FILE path}       | Force Nyx to use the icon defined here. If this is not found, it will check for a bmp named as the boot entry ([Test 2] -> `bootloader/res/Test 2.bmp`). Otherwise defaults will be used. |
@@ -160,9 +166,6 @@ hekate has a boot storage in the binary that helps it configure it outside of BP
 | '0xA0' emummc_path[120] | When `Boot to emuMMC` is set, it will override the current emuMMC (boot entry or emummc.ini). Must be NULL terminated. |
 
 
-If the main .ini is not found, it is created on the first hekate boot and only has the `[config]` entry.
-
-
 ### Nyx Configuration keys/values (nyx.ini):
 
 | Config option      | Description                                                |

bootloader/l4t/l4t.h

@@ -0,0 +1,24 @@
+/*
+ * L4T Loader for Tegra X1
+ *
+ * Copyright (c) 2020-2022 CTCaer
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _L4T_H_
+#define _L4T_H_
+
+void launch_l4t(const ini_sec_t *ini_sec, int entry_idx, int is_list, bool t210b01);
+
+#endif

bootloader/l4t/l4t_config.inl

@@ -0,0 +1,36 @@
+/*
+ * L4T Loader for Tegra X1
+ *
+ * Copyright (c) 2020-2022 CTCaer
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
+ */
+
+// Set to 1 to enable early boot debugging.
+#define DEBUG_LOG_ATF    0
+#define DEBUG_LOG_BPMPFW 0 // Do not enable if UART setup is hindered during early boot.
+
+// Set to 1 to lock PMC registers that contain LP0 parameters.
+#define LOCK_PMC_REGISTERS 0
+
+// Configurable carveout enable config. Only one can be enabled at a time.
+#define CARVEOUT_NVDEC_TSEC_ENABLE 0 // Enable for NVDEC bl/prod and full TOS/DRM.
+#define CARVEOUT_SECFW_ENABLE      1 // SECFW is always allocated even if carveout is disabled.
+
+/*
+ * WPR Carveout size config.
+ *
+ * L4T: 2MB or 13MB. On non SecureOS env, only 0x100 bytes are used, probably also on full TOS.
+ * On 4GB+ systems, it's normally placed at BANK1_TOP - SIZE;
+ */
+#define CARVEOUT_GPUWPR_SIZE_CFG (SZ_8M + SZ_4M + SZ_1M) // Mandatory when CARVEOUT_NVDEC_TSEC_ENABLE is 1.

bootloader/main.c

@@ -26,6 +26,7 @@
 #include "gfx/tui.h"
 #include "hos/hos.h"
 #include "hos/secmon_exo.h"
+#include "l4t/l4t.h"
 #include <ianos/ianos.h>
 #include <libs/compr/blz.h>
 #include <libs/fatfs/ff.h>
@@ -458,6 +459,19 @@ parse_failed:
 		// Try to launch Payload or L4T.
 		if (special_path != (char *)-1)
 			_launch_payload(special_path, false, true);
+		else
+		{
+			u32 entry_idx = 0;
+			for (u32 i = 0; i < sec_idx; i++)
+			{
+				if (ments[i].data == cfg_sec)
+				{
+					entry_idx = i;
+					break;
+				}
+			}
+			launch_l4t(cfg_sec, entry_idx, 1, h_cfg.t210b01);
+		}
 	}
 	else if (!hos_launch(cfg_sec))
 	{
@@ -590,6 +604,19 @@ parse_failed:
 		// Try to launch Payload or L4T.
 		if (special_path != (char *)-1)
 			_launch_payload(special_path, false, true);
+		else
+		{
+			u32 entry_idx = 0;
+			for (u32 i = 0; i < sec_idx; i++)
+			{
+				if (ments[i].data == cfg_sec)
+				{
+					entry_idx = i;
+					break;
+				}
+			}
+			launch_l4t(cfg_sec, entry_idx, 0, h_cfg.t210b01);
+		}
 	}
 	else if (!hos_launch(cfg_sec))
 	{
@@ -904,7 +931,8 @@ skip_list:
 	// Check if entry is payload or l4t special case.
 	char *special_path = ini_check_special_section(cfg_sec);
 
-	if (!(b_cfg.boot_cfg & BOOT_CFG_FROM_LAUNCH) && h_cfg.bootwait)
+	if ((!(b_cfg.boot_cfg & BOOT_CFG_FROM_LAUNCH) && h_cfg.bootwait) || // Conditional for HOS/Payload.
+		(special_path && special_path == (char *)-1))                   // Always show for L4T.
 	{
 		u32 fsize;
 		u8 *logo_buf = NULL;
@@ -987,6 +1015,8 @@ skip_list:
 		// Try to launch Payload or L4T.
 		if (special_path != (char *)-1)
 			_launch_payload(special_path, false, false);
+		else
+			launch_l4t(cfg_sec, h_cfg.autoboot, h_cfg.autoboot_list, h_cfg.t210b01);
 		goto error;
 	}
 	else