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kernel/linux-rt-4.4.41/include/linux/can/platform/cc770.h 1.13 KB
5113f6f70   김현기   kernel add
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  #ifndef _CAN_PLATFORM_CC770_H
  #define _CAN_PLATFORM_CC770_H
  
  /* CPU Interface Register (0x02) */
  #define CPUIF_CEN	0x01	/* Clock Out Enable */
  #define CPUIF_MUX	0x04	/* Multiplex */
  #define CPUIF_SLP	0x08	/* Sleep */
  #define CPUIF_PWD	0x10	/* Power Down Mode */
  #define CPUIF_DMC	0x20	/* Divide Memory Clock */
  #define CPUIF_DSC	0x40	/* Divide System Clock */
  #define CPUIF_RST	0x80	/* Hardware Reset Status */
  
  /* Clock Out Register (0x1f) */
  #define CLKOUT_CD_MASK  0x0f	/* Clock Divider mask */
  #define CLKOUT_SL_MASK	0x30	/* Slew Rate mask */
  #define CLKOUT_SL_SHIFT	4
  
  /* Bus Configuration Register (0x2f) */
  #define BUSCFG_DR0	0x01	/* Disconnect RX0 Input / Select RX input */
  #define BUSCFG_DR1	0x02	/* Disconnect RX1 Input / Silent mode */
  #define BUSCFG_DT1	0x08	/* Disconnect TX1 Output */
  #define BUSCFG_POL	0x20	/* Polarity dominant or recessive */
  #define BUSCFG_CBY	0x40	/* Input Comparator Bypass */
  
  struct cc770_platform_data {
  	u32 osc_freq;	/* CAN bus oscillator frequency in Hz */
  
  	u8 cir;		/* CPU Interface Register */
  	u8 cor;		/* Clock Out Register */
  	u8 bcr;		/* Bus Configuration Register */
  };
  
  #endif	/* !_CAN_PLATFORM_CC770_H */