diff options
Diffstat (limited to 'kernel/include/linux/i2c-omap.h')
-rw-r--r-- | kernel/include/linux/i2c-omap.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/kernel/include/linux/i2c-omap.h b/kernel/include/linux/i2c-omap.h new file mode 100644 index 000000000..babe0cf6d --- /dev/null +++ b/kernel/include/linux/i2c-omap.h @@ -0,0 +1,38 @@ +#ifndef __I2C_OMAP_H__ +#define __I2C_OMAP_H__ + +#include <linux/platform_device.h> + +/* + * Version 2 of the I2C peripheral unit has a different register + * layout and extra registers. The ID register in the V2 peripheral + * unit on the OMAP4430 reports the same ID as the V1 peripheral + * unit on the OMAP3530, so we must inform the driver which IP + * version we know it is running on from platform / cpu-specific + * code using these constants in the hwmod class definition. + */ + +#define OMAP_I2C_IP_VERSION_1 1 +#define OMAP_I2C_IP_VERSION_2 2 + +/* struct omap_i2c_bus_platform_data .flags meanings */ + +#define OMAP_I2C_FLAG_NO_FIFO BIT(0) +#define OMAP_I2C_FLAG_SIMPLE_CLOCK BIT(1) +#define OMAP_I2C_FLAG_16BIT_DATA_REG BIT(2) +#define OMAP_I2C_FLAG_ALWAYS_ARMXOR_CLK BIT(5) +#define OMAP_I2C_FLAG_FORCE_19200_INT_CLK BIT(6) +/* how the CPU address bus must be translated for I2C unit access */ +#define OMAP_I2C_FLAG_BUS_SHIFT_NONE 0 +#define OMAP_I2C_FLAG_BUS_SHIFT_1 BIT(7) +#define OMAP_I2C_FLAG_BUS_SHIFT_2 BIT(8) +#define OMAP_I2C_FLAG_BUS_SHIFT__SHIFT 7 + +struct omap_i2c_bus_platform_data { + u32 clkrate; + u32 rev; + u32 flags; + void (*set_mpu_wkup_lat)(struct device *dev, long set); +}; + +#endif |