1 files changed, 49 insertions, 0 deletions
diff --git a/arch/arm/plat-mxc/include/mach/io.h b/arch/arm/plat-mxc/include/mach/io.h
new file mode 100644
index 00000000..4347a87d
--- /dev/null
+++ b/arch/arm/plat-mxc/include/mach/io.h
@@ -0,0 +1,49 @@
+/*
+ *  Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * 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_MXC_IO_H__
+#define __ASM_ARCH_MXC_IO_H__
+
+/* Allow IO space to be anywhere in the memory */
+#define IO_SPACE_LIMIT 0xffffffff
+
+#if defined(CONFIG_SOC_IMX31) || defined(CONFIG_SOC_IMX35)
+#include <mach/hardware.h>
+
+#define __arch_ioremap __imx_ioremap
+#define __arch_iounmap __iounmap
+
+#define addr_in_module(addr, mod) \
+	((unsigned long)(addr) - mod ## _BASE_ADDR < mod ## _SIZE)
+
+static inline void __iomem *
+__imx_ioremap(unsigned long phys_addr, size_t size, unsigned int mtype)
+{
+	if (mtype == MT_DEVICE && (cpu_is_mx31() || cpu_is_mx35())) {
+		/*
+		 * Access all peripherals below 0x80000000 as nonshared device
+		 * on mx3, but leave l2cc alone.  Otherwise cache corruptions
+		 * can occur.
+		 */
+		if (phys_addr < 0x80000000 &&
+				!addr_in_module(phys_addr, MX3x_L2CC))
+			mtype = MT_DEVICE_NONSHARED;
+	}
+
+	return __arm_ioremap(phys_addr, size, mtype);
+}
+#endif
+
+/* io address mapping macro */
+#define __io(a)		__typesafe_io(a)
+
+#define __mem_pci(a)	(a)
+
+#endif