42 lines
1.4 KiB
C
42 lines
1.4 KiB
C
#ifndef __I2C_OMAP_H__
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#define __I2C_OMAP_H__
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#include <linux/platform_device.h>
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/*
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* Version 2 of the I2C peripheral unit has a different register
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* layout and extra registers. The ID register in the V2 peripheral
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* unit on the OMAP4430 reports the same ID as the V1 peripheral
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* unit on the OMAP3530, so we must inform the driver which IP
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* version we know it is running on from platform / cpu-specific
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* code using these constants in the hwmod class definition.
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*/
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#define OMAP_I2C_IP_VERSION_1 1
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#define OMAP_I2C_IP_VERSION_2 2
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/* struct omap_i2c_bus_platform_data .flags meanings */
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#define OMAP_I2C_FLAG_NO_FIFO BIT(0)
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#define OMAP_I2C_FLAG_SIMPLE_CLOCK BIT(1)
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#define OMAP_I2C_FLAG_16BIT_DATA_REG BIT(2)
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#define OMAP_I2C_FLAG_RESET_REGS_POSTIDLE BIT(3)
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#define OMAP_I2C_FLAG_APPLY_ERRATA_I207 BIT(4)
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#define OMAP_I2C_FLAG_ALWAYS_ARMXOR_CLK BIT(5)
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#define OMAP_I2C_FLAG_FORCE_19200_INT_CLK BIT(6)
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/* how the CPU address bus must be translated for I2C unit access */
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#define OMAP_I2C_FLAG_BUS_SHIFT_NONE 0
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#define OMAP_I2C_FLAG_BUS_SHIFT_1 BIT(7)
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#define OMAP_I2C_FLAG_BUS_SHIFT_2 BIT(8)
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#define OMAP_I2C_FLAG_BUS_SHIFT__SHIFT 7
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struct omap_i2c_bus_platform_data {
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u32 clkrate;
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void (*set_mpu_wkup_lat)(struct device *dev, long set);
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int (*device_enable) (struct platform_device *pdev);
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int (*device_shutdown) (struct platform_device *pdev);
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int (*device_idle) (struct platform_device *pdev);
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};
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#endif
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