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Commit 2b030bda authored by Linus Walleij's avatar Linus Walleij Committed by Ben Dooks
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mach-ux500: set proper I2C platform data from MOP500s 



This specifies the new per-platform timeout per I2C bus and
switches the I2C buses to fast mode, and increase the FIFO
depth to 8 for reads and writes.

Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarBen Dooks <ben-linux@fluff.org>
parent 82a44134

arch/arm/mach-ux500/board-mop500.c

+8 −6
Original line number Diff line number Diff line
@@ -204,7 +204,7 @@ static struct i2c_board_info __initdata mop500_i2c2_devices[] = { 
	},

};



#define U8500_I2C_CONTROLLER(id, _slsu, _tft, _rft, clk, _sm) \

#define U8500_I2C_CONTROLLER(id, _slsu, _tft, _rft, clk, t_out, _sm)	\

static struct nmk_i2c_controller u8500_i2c##id##_data = { \

	/*				\

	 * slave data setup time, which is	\
@@ -219,19 +219,21 @@ static struct nmk_i2c_controller u8500_i2c##id##_data = { \ 
	.rft		= _rft,		\

	/* std. mode operation */	\

	.clk_freq	= clk,		\

	/* Slave response timeout(ms) */\

	.timeout	= t_out,	\

	.sm		= _sm,		\

}



/*

 * The board uses 4 i2c controllers, initialize all of

 * them with slave data setup time of 250 ns,

 * Tx & Rx FIFO threshold values as 1 and standard

 * Tx & Rx FIFO threshold values as 8 and standard

 * mode of operation

 */

U8500_I2C_CONTROLLER(0, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);

U8500_I2C_CONTROLLER(1, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);

U8500_I2C_CONTROLLER(2,	0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);

U8500_I2C_CONTROLLER(3,	0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);

U8500_I2C_CONTROLLER(0, 0xe, 1, 8, 100000, 200, I2C_FREQ_MODE_FAST);

U8500_I2C_CONTROLLER(1, 0xe, 1, 8, 100000, 200, I2C_FREQ_MODE_FAST);

U8500_I2C_CONTROLLER(2,	0xe, 1, 8, 100000, 200, I2C_FREQ_MODE_FAST);

U8500_I2C_CONTROLLER(3,	0xe, 1, 8, 100000, 200, I2C_FREQ_MODE_FAST);



static void __init mop500_i2c_init(void)

{