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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2011-07-27 00:54:47 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2011-07-27 00:54:47 -0700
commitaa7eb8e78d8ecd6cd0475d86ea8385ff9cb47ece (patch)
tree3f9e98fadd5124fb05e8f6f9b06aa23698d4f215 /arch/arm/mach-at91/include/mach/system_rev.h
parentcca8edfd2ec2a34d9f50f593bc753bb11e1bc1f5 (diff)
parent3c6b50141ef9f0a8844bf1357b80c0cdf518bf05 (diff)
Merge branch 'next' into for-linus
Diffstat (limited to 'arch/arm/mach-at91/include/mach/system_rev.h')
-rw-r--r--arch/arm/mach-at91/include/mach/system_rev.h25
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/include/mach/system_rev.h b/arch/arm/mach-at91/include/mach/system_rev.h
new file mode 100644
index 00000000000..b855ee75f72
--- /dev/null
+++ b/arch/arm/mach-at91/include/mach/system_rev.h
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2011 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
+ *
+ * Under GPLv2 only
+ */
+
+#ifndef __ARCH_SYSTEM_REV_H__
+#define __ARCH_SYSTEM_REV_H__
+
+/*
+ * board revision encoding
+ * mach specific
+ * the 16-31 bit are reserved for at91 generic information
+ *
+ * bit 31:
+ * 0 => nand 16 bit
+ * 1 => nand 8 bit
+ */
+#define BOARD_HAVE_NAND_8BIT (1 << 31)
+static int inline board_have_nand_8bit(void)
+{
+ return system_rev & BOARD_HAVE_NAND_8BIT;
+}
+
+#endif /* __ARCH_SYSTEM_REV_H__ */