1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * Common Definitions for Janz MODULbus devices
4 *
5 * Copyright (c) 2010 Ira W. Snyder <iws@ovro.caltech.edu>
6 */
7
8#ifndef JANZ_H
9#define JANZ_H
10
11struct janz_platform_data {
12	/* MODULbus Module Number */
13	unsigned int modno;
14};
15
16/* PLX bridge chip onboard registers */
17struct janz_cmodio_onboard_regs {
18	u8 unused1;
19
20	/*
21	 * Read access: interrupt status
22	 * Write access: interrupt disable
23	 */
24	u8 int_disable;
25	u8 unused2;
26
27	/*
28	 * Read access: MODULbus number (hex switch)
29	 * Write access: interrupt enable
30	 */
31	u8 int_enable;
32	u8 unused3;
33
34	/* write-only */
35	u8 reset_assert;
36	u8 unused4;
37
38	/* write-only */
39	u8 reset_deassert;
40	u8 unused5;
41
42	/* read-write access to serial EEPROM */
43	u8 eep;
44	u8 unused6;
45
46	/* write-only access to EEPROM chip select */
47	u8 enid;
48};
49
50#endif /* JANZ_H */
51