1 files changed, 52 insertions, 0 deletions
diff --git a/arch/arm/plat-mxc/include/mach/mtd-xip.h b/arch/arm/plat-mxc/include/mach/mtd-xip.h
new file mode 100644
index 000000000000..340bb9c1562c
--- /dev/null
+++ b/arch/arm/plat-mxc/include/mach/mtd-xip.h
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2007-2009 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * MTD primitives for XIP support. Architecture specific functions
+ *
+ * Do not include this file directly. It's included from linux/mtd/xip.h
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#ifndef __ARCH_MXC_MTD_XIP_H__
+#define __ARCH_MXC_MTD_XIP_H__
+
+#include <linux/clocksource.h>
+#include <mach/hardware.h>
+#include <mach/system.h>
+
+#define xip_irqpending()        \
+        ((__raw_readl(AVIC_NIVECSR) & __raw_readl(AVIC_FIVECSR)) != 0xFFFFFFFF)
+
+extern struct clocksource *mtd_xip_clksrc;
+
+#define xip_currtime()  (unsigned long)clocksource_read(mtd_xip_clksrc)
+
+#if CLOCK_TICK_RATE > 1000000
+#define NUMERATOR	1
+#define DENOMINATOR	(CLOCK_TICK_RATE/1000000 + 1)
+#else
+#define NUMERATOR	(1000000/CLOCK_TICK_RATE)
+#define DENOMINATOR	1
+#endif
+
+static inline unsigned long xip_elapsed_since(unsigned long x)
+{
+	return (((xip_currtime() - x) * NUMERATOR) / DENOMINATOR);
+}
+
+/*
+ * Wait For Interrupt command for XIP kernel to put CPU in Idle mode
+ */
+#define xip_cpu_idle()  arch_idle()
+
+#endif				/* __ARCH_MXC_MTD_XIP_H__ */