include/linux/can/platform/sja1000.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _CAN_PLATFORM_SJA1000_H
   3 #define _CAN_PLATFORM_SJA1000_H
   4
   5 /* clock divider register */
   6 #define CDR_CLKOUT_MASK 0x07
   7 #define CDR_CLK_OFF     0x08 /* Clock off (CLKOUT pin) */
   8 #define CDR_RXINPEN     0x20 /* TX1 output is RX irq output */
   9 #define CDR_CBP         0x40 /* CAN input comparator bypass */
  10 #define CDR_PELICAN     0x80 /* PeliCAN mode */
  11
  12 /* output control register */
  13 #define OCR_MODE_BIPHASE  0x00
  14 #define OCR_MODE_TEST     0x01
  15 #define OCR_MODE_NORMAL   0x02
  16 #define OCR_MODE_CLOCK    0x03
  17 #define OCR_MODE_MASK     0x07
  18 #define OCR_TX0_INVERT    0x04
  19 #define OCR_TX0_PULLDOWN  0x08
  20 #define OCR_TX0_PULLUP    0x10
  21 #define OCR_TX0_PUSHPULL  0x18
  22 #define OCR_TX1_INVERT    0x20
  23 #define OCR_TX1_PULLDOWN  0x40
  24 #define OCR_TX1_PULLUP    0x80
  25 #define OCR_TX1_PUSHPULL  0xc0
  26 #define OCR_TX_MASK       0xfc
  27 #define OCR_TX_SHIFT      2
  28
  29 struct sja1000_platform_data {
  30         u32 osc_freq;   /* CAN bus oscillator frequency in Hz */
  31
  32         u8 ocr;         /* output control register */
  33         u8 cdr;         /* clock divider register */
  34 };
  35
  36 #endif  /* !_CAN_PLATFORM_SJA1000_H */