i2c-omap.h 1.2 KB

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