ARC: Ensure DT mem base is same as what kernel is built with

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>

arch/arc/boot/dts/axc001.dtsi

@@ -95,6 +95,6 @@ memory {
 		#size-cells = <1>;
 		ranges = <0x00000000 0x80000000 0x40000000>;
 		device_type = "memory";
-		reg = <0x00000000 0x20000000>;	/* 512MiB */
+		reg = <0x80000000 0x20000000>;	/* 512MiB */
 	};
 };

arch/arc/boot/dts/axc003.dtsi

@@ -98,6 +98,6 @@ memory {
 		#size-cells = <1>;
 		ranges = <0x00000000 0x80000000 0x40000000>;
 		device_type = "memory";
-		reg = <0x00000000 0x20000000>;	/* 512MiB */
+		reg = <0x80000000 0x20000000>;	/* 512MiB */
 	};
 };

arch/arc/boot/dts/axc003_idu.dtsi

@@ -121,6 +121,6 @@ memory {
 		#size-cells = <1>;
 		ranges = <0x00000000 0x80000000 0x40000000>;
 		device_type = "memory";
-		reg = <0x00000000 0x20000000>;	/* 512MiB */
+		reg = <0x80000000 0x20000000>;	/* 512MiB */
 	};
 };

arch/arc/boot/dts/skeleton.dtsi

@@ -32,6 +32,6 @@ cpu@0 {
 
 	memory {
 		device_type = "memory";
-		reg = <0x00000000 0x10000000>;	/* 256M */
+		reg = <0x80000000 0x10000000>;	/* 256M */
 	};
 };

arch/arc/boot/dts/vdk_axc003.dtsi

@@ -56,6 +56,6 @@ memory {
 		#size-cells = <1>;
 		ranges = <0x00000000 0x80000000 0x40000000>;
 		device_type = "memory";
-		reg = <0x00000000 0x20000000>;	/* 512MiB */
+		reg = <0x80000000 0x20000000>;	/* 512MiB */
 	};
 };

arch/arc/boot/dts/vdk_axc003_idu.dtsi

@@ -71,6 +71,6 @@ memory {
 		#size-cells = <1>;
 		ranges = <0x00000000 0x80000000 0x40000000>;
 		device_type = "memory";
-		reg = <0x00000000 0x20000000>;	/* 512MiB */
+		reg = <0x80000000 0x20000000>;	/* 512MiB */
 	};
 };

arch/arc/mm/init.c

@@ -43,6 +43,8 @@ void __init early_init_dt_add_memory_arch(u64 base, u64 size)
 {
 	arc_mem_sz = size & PAGE_MASK;
 	pr_info("Memory size set via devicetree %ldM\n", TO_MB(arc_mem_sz));
+
+	BUG_ON(base != CONFIG_LINUX_LINK_BASE);
 }
 
 #ifdef CONFIG_BLK_DEV_INITRD