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authorTony Lindgren <tony@atomide.com>2010-03-01 14:19:05 -0800
committerTony Lindgren <tony@atomide.com>2010-03-01 14:19:05 -0800
commitd702d12167a2c05a346f49aac7a311d597762495 (patch)
treebaae42c299cce34d6df24b5d01f8b1d0b481bd9a /arch/arm/plat-nomadik/include/plat/i2c.h
parent9418c65f9bd861d0f7e39aab9cfb3aa6f2275d11 (diff)
parentac0f6f927db539e03e1f3f61bcd4ed57d5cde7a9 (diff)
downloadblackbird-op-linux-d702d12167a2c05a346f49aac7a311d597762495.tar.gz
blackbird-op-linux-d702d12167a2c05a346f49aac7a311d597762495.zip
Merge with mainline to remove plat-omap/Kconfig conflict
Conflicts: arch/arm/plat-omap/Kconfig
Diffstat (limited to 'arch/arm/plat-nomadik/include/plat/i2c.h')
-rw-r--r--arch/arm/plat-nomadik/include/plat/i2c.h37
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/arm/plat-nomadik/include/plat/i2c.h b/arch/arm/plat-nomadik/include/plat/i2c.h
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+++ b/arch/arm/plat-nomadik/include/plat/i2c.h
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+/*
+ * Copyright (C) 2009 ST-Ericsson
+ *
+ * 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 __PLAT_I2C_H
+#define __PLAT_I2C_H
+
+enum i2c_freq_mode {
+ I2C_FREQ_MODE_STANDARD, /* up to 100 Kb/s */
+ I2C_FREQ_MODE_FAST, /* up to 400 Kb/s */
+ I2C_FREQ_MODE_FAST_PLUS, /* up to 1 Mb/s */
+ I2C_FREQ_MODE_HIGH_SPEED /* up to 3.4 Mb/s */
+};
+
+/**
+ * struct nmk_i2c_controller - client specific controller configuration
+ * @clk_freq: clock frequency for the operation mode
+ * @slsu: Slave data setup time in ns.
+ * The needed setup time for three modes of operation
+ * are 250ns, 100ns and 10ns respectively thus leading
+ * to the values of 14, 6, 2 for a 48 MHz i2c clk
+ * @tft: Tx FIFO Threshold in bytes
+ * @rft: Rx FIFO Threshold in bytes
+ * @sm: speed mode
+ */
+struct nmk_i2c_controller {
+ unsigned long clk_freq;
+ unsigned short slsu;
+ unsigned char tft;
+ unsigned char rft;
+ enum i2c_freq_mode sm;
+};
+
+#endif /* __PLAT_I2C_H */
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