diff --git a/arch/arm/mach-exynos/include/mach/hardware.h b/arch/arm/mach-exynos/include/mach/hardware.h
deleted file mode 100644
index 5109eb232f23..000000000000
--- a/arch/arm/mach-exynos/include/mach/hardware.h
+++ /dev/null
@@ -1,18 +0,0 @@
-/* linux/arch/arm/mach-exynos4/include/mach/hardware.h
- *
- * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
- *		http://www.samsung.com
- *
- * EXYNOS4 - Hardware support
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
-*/
-
-#ifndef __ASM_ARCH_HARDWARE_H
-#define __ASM_ARCH_HARDWARE_H __FILE__
-
-/* currently nothing here, placeholder */
-
-#endif /* __ASM_ARCH_HARDWARE_H */
diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-exynos/platsmp.c
index 8ea02f63fed9..03e5e9f94705 100644
--- a/arch/arm/mach-exynos/platsmp.c
+++ b/arch/arm/mach-exynos/platsmp.c
@@ -26,8 +26,6 @@
 #include <asm/smp_scu.h>
 #include <asm/firmware.h>
 
-#include <mach/hardware.h>
-
 #include <plat/cpu.h>
 
 #include "common.h"
diff --git a/arch/arm/mach-s3c24xx/include/mach/hardware.h b/arch/arm/mach-s3c24xx/include/mach/hardware.h
index a6cc14a092fc..dedd3837c193 100644
--- a/arch/arm/mach-s3c24xx/include/mach/hardware.h
+++ b/arch/arm/mach-s3c24xx/include/mach/hardware.h
@@ -1,5 +1,4 @@
-/* arch/arm/mach-s3c2410/include/mach/hardware.h
- *
+/*
  * Copyright (c) 2003 Simtec Electronics
  *	Ben Dooks <ben@simtec.co.uk>
  *
@@ -17,20 +16,9 @@
 
 extern unsigned int s3c2410_modify_misccr(unsigned int clr, unsigned int chg);
 
-#ifdef CONFIG_CPU_S3C2440
-
-extern int s3c2440_set_dsc(unsigned int pin, unsigned int value);
-
-#endif /* CONFIG_CPU_S3C2440 */
-
 #endif /* __ASSEMBLY__ */
 
 #include <asm/sizes.h>
 #include <mach/map.h>
 
-/* machine specific hardware definitions should go after this */
-
-/* currently here until moved into config (todo) */
-#define CONFIG_NO_MULTIWORD_IO
-
 #endif /* __ASM_ARCH_HARDWARE_H */
diff --git a/arch/arm/plat-samsung/clock.c b/arch/arm/plat-samsung/clock.c
index ddfebddb4105..d103ac1a52af 100644
--- a/arch/arm/plat-samsung/clock.c
+++ b/arch/arm/plat-samsung/clock.c
@@ -43,7 +43,6 @@
 #include <linux/debugfs.h>
 #endif
 
-#include <mach/hardware.h>
 #include <asm/irq.h>
 
 #include <plat/cpu-freq.h>
diff --git a/arch/arm/plat-samsung/devs.c b/arch/arm/plat-samsung/devs.c
index c64a39ac1b04..ead4f1c94058 100644
--- a/arch/arm/plat-samsung/devs.c
+++ b/arch/arm/plat-samsung/devs.c
@@ -31,6 +31,7 @@
 #include <linux/mtd/partitions.h>
 #include <linux/mmc/host.h>
 #include <linux/ioport.h>
+#include <linux/sizes.h>
 #include <linux/platform_data/s3c-hsudc.h>
 #include <linux/platform_data/s3c-hsotg.h>
 #include <linux/platform_data/dma-s3c24xx.h>
@@ -42,7 +43,6 @@
 #include <asm/mach/map.h>
 #include <asm/mach/irq.h>
 
-#include <mach/hardware.h>
 #include <mach/dma.h>
 #include <mach/irqs.h>
 #include <mach/map.h>
diff --git a/arch/arm/plat-samsung/init.c b/arch/arm/plat-samsung/init.c
index 0ffc84aaf60e..8706c6c4f894 100644
--- a/arch/arm/plat-samsung/init.c
+++ b/arch/arm/plat-samsung/init.c
@@ -25,8 +25,6 @@
 #include <linux/platform_device.h>
 #include <linux/of.h>
 
-#include <mach/hardware.h>
-
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
 
diff --git a/arch/arm/plat-samsung/pm.c b/arch/arm/plat-samsung/pm.c
index ae9baa2d6381..d438e77fbf7b 100644
--- a/arch/arm/plat-samsung/pm.c
+++ b/arch/arm/plat-samsung/pm.c
@@ -25,7 +25,6 @@
 #include <asm/suspend.h>
 
 #ifdef CONFIG_SAMSUNG_ATAGS
-#include <mach/hardware.h>
 #include <mach/map.h>
 #ifndef CONFIG_ARCH_EXYNOS
 #include <mach/regs-clock.h>
diff --git a/arch/arm/plat-samsung/s5p-dev-uart.c b/arch/arm/plat-samsung/s5p-dev-uart.c
index cafa3deddcc1..8c4487af98c8 100644
--- a/arch/arm/plat-samsung/s5p-dev-uart.c
+++ b/arch/arm/plat-samsung/s5p-dev-uart.c
@@ -18,7 +18,6 @@
 
 #include <asm/mach/arch.h>
 #include <asm/mach/irq.h>
-#include <mach/hardware.h>
 #include <mach/map.h>
 
 #include <plat/devs.h>