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Commit e208c447 authored by Srinidhi Kasagar's avatar Srinidhi Kasagar Committed by Russell King
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ARM: 5908/1: nomadik: add platform specific i2c configuration 



This adds the platform specific i2c configuration
data structures to setup the nomadik/ux500 i2c block.

Signed-off-by: default avatarsrinidhi kasagar <srinidhi.kasagar@stericsson.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 8e58ed34

arch/arm/plat-nomadik/include/plat/i2c.h

0 → 100644
+37 −0
Original line number Diff line number Diff line 
/*

 * 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 */