--- zzzz-none-000/linux-4.4.60/arch/mips/kernel/setup.c	2017-04-08 07:53:53.000000000 +0000
+++ scorpion-7490-727/linux-4.4.60/arch/mips/kernel/setup.c	2021-02-04 17:41:59.000000000 +0000
@@ -9,6 +9,7 @@
  * Copyright (C) 1996 Stoned Elipot
  * Copyright (C) 1999 Silicon Graphics, Inc.
  * Copyright (C) 2000, 2001, 2002, 2007	 Maciej W. Rozycki
+ * Copyright (C) 2013 AVM GmbH
  */
 #include <linux/init.h>
 #include <linux/ioport.h>
@@ -38,6 +39,12 @@
 #include <asm/setup.h>
 #include <asm/smp-ops.h>
 #include <asm/prom.h>
+#if defined(CONFIG_AVM_ENHANCED)
+#include <asm/avm_enh/avm_enh.h>
+#endif/*--- #if defined(CONFIG_AVM_ENHANCED) ---*/
+
+#include <avm/enh/fw_info.h>
+#include <avm/enh/module_mem.h>
 
 #ifdef CONFIG_MIPS_ELF_APPENDED_DTB
 const char __section(.appended_dtb) __appended_dtb[0x100000];
@@ -172,6 +179,9 @@
 		case BOOT_MEM_ROM_DATA:
 			printk(KERN_CONT "(ROM data)\n");
 			break;
+		case BOOT_MEM_BOOTLOADER:
+			printk(KERN_CONT "(bootloader)\n");
+			break;
 		case BOOT_MEM_RESERVED:
 			printk(KERN_CONT "(reserved)\n");
 			break;
@@ -741,6 +751,9 @@
 		case BOOT_MEM_ROM_DATA:
 			res->name = "System RAM";
 			break;
+		case BOOT_MEM_BOOTLOADER:
+			res->name = "bootloader";
+			break;
 		case BOOT_MEM_RESERVED:
 		default:
 			res->name = "reserved";
@@ -784,11 +797,20 @@
 
 void __init setup_arch(char **cmdline_p)
 {
+    extern void plat_device_tree_setup(void);
+
+#if defined(CONFIG_EARLY_PRINTK) && defined(CONFIG_ATH79)
+    /* ATH79 earlyprintk can run without dt and prom */
+	setup_early_printk();
+#endif
+
 	cpu_probe();
 	prom_init();
 
+    plat_device_tree_setup();
+
 	setup_early_fdc_console();
-#ifdef CONFIG_EARLY_PRINTK
+#if defined(CONFIG_EARLY_PRINTK) && !defined(CONFIG_ATH79)
 	setup_early_printk();
 #endif
 	cpu_report();
@@ -808,6 +830,9 @@
 	plat_smp_setup();
 	prefill_possible_map();
 
+	avm_fw_info_init();
+	avm_module_mem_init();
+
 	cpu_cache_init();
 }