| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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| 2 | #ifndef __I2C_OMAP_H__ |
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| 3 | #define __I2C_OMAP_H__ |
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| 4 | |
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| 5 | #include <linux/platform_device.h> |
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| 6 | |
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| 7 | /* |
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| 8 | * Version 2 of the I2C peripheral unit has a different register |
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| 9 | * layout and extra registers. The ID register in the V2 peripheral |
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| 10 | * unit on the OMAP4430 reports the same ID as the V1 peripheral |
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| 11 | * unit on the OMAP3530, so we must inform the driver which IP |
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| 12 | * version we know it is running on from platform / cpu-specific |
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| 13 | * code using these constants in the hwmod class definition. |
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| 14 | */ |
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| 15 | |
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| 16 | #define OMAP_I2C_IP_VERSION_1 1 |
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| 17 | #define OMAP_I2C_IP_VERSION_2 2 |
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| 18 | |
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| 19 | /* struct omap_i2c_bus_platform_data .flags meanings */ |
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| 20 | |
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| 21 | #define OMAP_I2C_FLAG_NO_FIFO BIT(0) |
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| 22 | #define OMAP_I2C_FLAG_SIMPLE_CLOCK BIT(1) |
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| 23 | #define OMAP_I2C_FLAG_16BIT_DATA_REG BIT(2) |
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| 24 | #define OMAP_I2C_FLAG_ALWAYS_ARMXOR_CLK BIT(5) |
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| 25 | #define OMAP_I2C_FLAG_FORCE_19200_INT_CLK BIT(6) |
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| 26 | /* how the CPU address bus must be translated for I2C unit access */ |
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| 27 | #define OMAP_I2C_FLAG_BUS_SHIFT_NONE 0 |
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| 28 | #define OMAP_I2C_FLAG_BUS_SHIFT_1 BIT(7) |
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| 29 | #define OMAP_I2C_FLAG_BUS_SHIFT_2 BIT(8) |
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| 30 | #define OMAP_I2C_FLAG_BUS_SHIFT__SHIFT 7 |
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| 31 | |
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| 32 | struct omap_i2c_bus_platform_data { |
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| 33 | u32 clkrate; |
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| 34 | u32 rev; |
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| 35 | u32 flags; |
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| 36 | void (*set_mpu_wkup_lat)(struct device *dev, long set); |
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| 37 | }; |
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| 38 | |
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| 39 | #endif |
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| 40 | |
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