1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _CAN_PLATFORM_CC770_H
3 #define _CAN_PLATFORM_CC770_H
4
5 /* CPU Interface Register (0x02) */
6 #define CPUIF_CEN 0x01 /* Clock Out Enable */
7 #define CPUIF_MUX 0x04 /* Multiplex */
8 #define CPUIF_SLP 0x08 /* Sleep */
9 #define CPUIF_PWD 0x10 /* Power Down Mode */
10 #define CPUIF_DMC 0x20 /* Divide Memory Clock */
11 #define CPUIF_DSC 0x40 /* Divide System Clock */
12 #define CPUIF_RST 0x80 /* Hardware Reset Status */
13
14 /* Clock Out Register (0x1f) */
15 #define CLKOUT_CD_MASK 0x0f /* Clock Divider mask */
16 #define CLKOUT_SL_MASK 0x30 /* Slew Rate mask */
17 #define CLKOUT_SL_SHIFT 4
18
19 /* Bus Configuration Register (0x2f) */
20 #define BUSCFG_DR0 0x01 /* Disconnect RX0 Input / Select RX input */
21 #define BUSCFG_DR1 0x02 /* Disconnect RX1 Input / Silent mode */
22 #define BUSCFG_DT1 0x08 /* Disconnect TX1 Output */
23 #define BUSCFG_POL 0x20 /* Polarity dominant or recessive */
24 #define BUSCFG_CBY 0x40 /* Input Comparator Bypass */
25
26 struct cc770_platform_data {
27 u32 osc_freq; /* CAN bus oscillator frequency in Hz */
28
29 u8 cir; /* CPU Interface Register */
30 u8 cor; /* Clock Out Register */
31 u8 bcr; /* Bus Configuration Register */
32 };
33
34 #endif /* !_CAN_PLATFORM_CC770_H */