i2c-omap.h (1241B)
1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef __I2C_OMAP_H__ 3#define __I2C_OMAP_H__ 4 5#include <linux/platform_device.h> 6 7/* 8 * Version 2 of the I2C peripheral unit has a different register 9 * layout and extra registers. The ID register in the V2 peripheral 10 * unit on the OMAP4430 reports the same ID as the V1 peripheral 11 * unit on the OMAP3530, so we must inform the driver which IP 12 * version we know it is running on from platform / cpu-specific 13 * code using these constants in the hwmod class definition. 14 */ 15 16#define OMAP_I2C_IP_VERSION_1 1 17#define OMAP_I2C_IP_VERSION_2 2 18 19/* struct omap_i2c_bus_platform_data .flags meanings */ 20 21#define OMAP_I2C_FLAG_NO_FIFO BIT(0) 22#define OMAP_I2C_FLAG_SIMPLE_CLOCK BIT(1) 23#define OMAP_I2C_FLAG_16BIT_DATA_REG BIT(2) 24#define OMAP_I2C_FLAG_ALWAYS_ARMXOR_CLK BIT(5) 25#define OMAP_I2C_FLAG_FORCE_19200_INT_CLK BIT(6) 26/* how the CPU address bus must be translated for I2C unit access */ 27#define OMAP_I2C_FLAG_BUS_SHIFT_NONE 0 28#define OMAP_I2C_FLAG_BUS_SHIFT_1 BIT(7) 29#define OMAP_I2C_FLAG_BUS_SHIFT_2 BIT(8) 30#define OMAP_I2C_FLAG_BUS_SHIFT__SHIFT 7 31 32struct omap_i2c_bus_platform_data { 33 u32 clkrate; 34 u32 rev; 35 u32 flags; 36 void (*set_mpu_wkup_lat)(struct device *dev, long set); 37}; 38 39#endif