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authorGuanXuetao <gxt@mprc.pku.edu.cn>2011-01-15 18:19:03 +0800
committerGuanXuetao <gxt@mprc.pku.edu.cn>2011-03-17 09:19:10 +0800
commit02b2ee16cc31df2b23d6f6c68a597d947f6c10e8 (patch)
treeac92441c0286fc3458339589c4e9de27e6be6067 /arch/unicore32/include
parent10c9c10c31514564b09c153432a42ffaea3ce831 (diff)
unicore32 core architecture: timer and time handling
This patch implements timer and time. RTC and PWM device drivers are also here. Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Diffstat (limited to 'arch/unicore32/include')
-rw-r--r--arch/unicore32/include/asm/timex.h34
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/unicore32/include/asm/timex.h b/arch/unicore32/include/asm/timex.h
new file mode 100644
index 000000000000..faf16ba46544
--- /dev/null
+++ b/arch/unicore32/include/asm/timex.h
@@ -0,0 +1,34 @@
+/*
+ * linux/arch/unicore32/include/asm/timex.h
+ *
+ * Code specific to PKUnity SoC and UniCore ISA
+ *
+ * Copyright (C) 2001-2010 GUAN Xue-tao
+ *
+ * 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 __UNICORE_TIMEX_H__
+#define __UNICORE_TIMEX_H__
+
+#ifdef CONFIG_ARCH_FPGA
+
+/* in FPGA, APB clock is 33M, and OST clock is 32K, */
+/* so, 1M is selected for timer interrupt correctly */
+#define CLOCK_TICK_RATE (32*1024)
+
+#endif
+
+#if defined(CONFIG_PUV3_DB0913) \
+ || defined(CONFIG_PUV3_NB0916) \
+ || defined(CONFIG_PUV3_SMW0919)
+
+#define CLOCK_TICK_RATE (14318000)
+
+#endif
+
+#include <asm-generic/timex.h>
+
+#endif