diff --git a/arch/arm64/kernel/efi-entry.S b/arch/arm64/kernel/efi-entry.S
index 8ce9b05..0024d02 100644
--- a/arch/arm64/kernel/efi-entry.S
+++ b/arch/arm64/kernel/efi-entry.S
@@ -91,16 +91,6 @@ ENTRY(efi_stub_entry)
 	sub	x1, x1, x0
 	bl	__flush_dcache_area
 
-	/* Turn off Dcache and MMU */
-	mrs	x0, CurrentEL
-	cmp	x0, #CurrentEL_EL2
-	b.ne	1f
-	mrs	x0, sctlr_el2
-	bic	x0, x0, #1 << 0	// clear SCTLR.M
-	bic	x0, x0, #1 << 2	// clear SCTLR.C
-	msr	sctlr_el2, x0
-	isb
-	b	2f
 1:
 	mrs	x0, sctlr_el1
 	bic	x0, x0, #1 << 0	// clear SCTLR.M
diff --git a/drivers/firmware/efi/libstub/efi-stub-helper.c b/drivers/firmware/efi/libstub/efi-stub-helper.c
index f07d4a6..61757ef 100644
--- a/drivers/firmware/efi/libstub/efi-stub-helper.c
+++ b/drivers/firmware/efi/libstub/efi-stub-helper.c
@@ -369,6 +369,7 @@ efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
 	efi_status_t status;
 	int nr_files;
 	char *str;
+	char Message[256] = {0};
 	int i, j, k;
 
 	file_addr = 0;
@@ -413,10 +414,14 @@ efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
 	}
 
 	str = cmd_line;
+
 	for (i = 0; i < nr_files; i++) {
 		struct file_info *file;
 		efi_char16_t filename_16[256];
 		efi_char16_t *p;
+		char pram[256];
+		char *token = NULL;
+		char *ppram;
 
 		str = strstr(str, option_string);
 		if (!str)
@@ -426,6 +431,7 @@ efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
 
 		file = &files[i];
 		p = filename_16;
+		ppram = pram;
 
 		/* Skip any leading slashes */
 		while (*str == '/' || *str == '\\')
@@ -437,13 +443,41 @@ efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
 
 			if (*str == '/') {
 				*p++ = '\\';
+				*ppram++ = '\\';
 				str++;
 			} else {
-				*p++ = *str++;
+				*p = *str;
+				*ppram = *str;
+				p++;
+				ppram++;
+				str++;
 			}
 		}
 
 		*p = '\0';
+		*ppram = '\0';
+		
+		/* Check Whether Pre-load RAM Location. Format dtb=0x83000000,0x83200000 */
+		ppram = pram;
+		token = strsep(&ppram, ",");
+
+		if(token != NULL)
+		{
+			sscanf( (const char *)token, "%lx", &file_addr);
+			memset(Message, 0, sizeof(Message));
+			sprintf(Message, "Preloaded dtb or initrd found. Address = 0x%lx\n", file_addr);
+			efi_printk(sys_table_arg, Message);
+			token = strsep(&ppram, ",");
+
+			if(token != NULL)
+			{
+				sscanf( (const char *)token, "%llx", &file_size_total );
+				memset(Message, 0, sizeof(Message));
+				sprintf(Message, "Preloaded dtb or initrd File Size = 0x%llx\n", file_size_total);
+				efi_printk(sys_table_arg, Message);
+				break;
+			}
+		}
 
 		/* Only open the volume once. */
 		if (!i) {
@@ -460,8 +494,8 @@ efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
 
 		file_size_total += file->size;
 	}
-
-	if (file_size_total) {
+    
+	if (file_size_total && !file_addr) {
 		unsigned long addr;
 
 		/*