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authorDarius Augulis <augulis.darius@gmail.com>2008-11-14 11:01:39 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2008-12-16 14:58:42 +0100
commit5032630f398a4e30371dd39fce28778eedcbb5b5 (patch)
tree424bafe500d6f60aebac80314fa5e2ecdc9dcfbb /arch/arm/plat-mxc
parent219fed7558346225bae3cfd8fdbf44876e5bf79f (diff)
patch-mx1-mtd-xip
Adds MTD XIP support for ARCH_MX1. Signed-off-by: Darius Augulis <augulis.darius@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/plat-mxc')
-rw-r--r--arch/arm/plat-mxc/include/mach/mtd-xip.h34
1 files changed, 34 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 00000000000..1ab1bba5688
--- /dev/null
+++ b/arch/arm/plat-mxc/include/mach/mtd-xip.h
@@ -0,0 +1,34 @@
+/*
+ * MTD primitives for XIP support. Architecture specific functions
+ *
+ * Do not include this file directly. It's included from linux/mtd/xip.h
+ *
+ * Copyright (C) 2008 Darius Augulis <augulis.darius@gmail.com>, Teltonika, Inc.
+ *
+ * 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.
+ *
+ */
+
+#include <mach/mxc_timer.h>
+
+#ifndef __ARCH_IMX_MTD_XIP_H__
+#define __ARCH_IMX_MTD_XIP_H__
+
+#ifdef CONFIG_ARCH_MX1
+/* AITC registers */
+#define AITC_BASE IO_ADDRESS(AVIC_BASE_ADDR)
+#define NIPNDH (AITC_BASE + 0x58)
+#define NIPNDL (AITC_BASE + 0x5C)
+#define INTENABLEH (AITC_BASE + 0x10)
+#define INTENABLEL (AITC_BASE + 0x14)
+/* MTD macros */
+#define xip_irqpending() ((__raw_readl(INTENABLEH) & __raw_readl(NIPNDH)) \
+ || (__raw_readl(INTENABLEL) & __raw_readl(NIPNDL)))
+#define xip_currtime() (__raw_readl(TIMER_BASE + MXC_TCN))
+#define xip_elapsed_since(x) (signed)((__raw_readl(TIMER_BASE + MXC_TCN) - (x)) / 96)
+#define xip_cpu_idle() asm volatile ("mcr p15, 0, %0, c7, c0, 4" :: "r" (0))
+#endif /* CONFIG_ARCH_MX1 */
+
+#endif /* __ARCH_IMX_MTD_XIP_H__ */