This adds the platform specific i2c configuration data structures to setup the nomadik/Ux500 I2C block.
Signed-off-by: srinidhi kasagar <[email protected]> Acked-by: Andrea Gallo <[email protected]> --- arch/arm/plat-nomadik/include/plat/i2c.h | 37 ++++++++++++++++++++++++++++++ 1 files changed, 37 insertions(+), 0 deletions(-) create mode 100644 arch/arm/plat-nomadik/include/plat/i2c.h diff --git a/arch/arm/plat-nomadik/include/plat/i2c.h b/arch/arm/plat-nomadik/include/plat/i2c.h new file mode 100644 index 0000000..1621db6 --- /dev/null +++ b/arch/arm/plat-nomadik/include/plat/i2c.h @@ -0,0 +1,37 @@ +/* + * 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 */ -- 1.6.3.GIT -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
