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2874c5fd | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
bd358132 IS |
2 | /* |
3 | * Common Definitions for Janz MODULbus devices | |
4 | * | |
5 | * Copyright (c) 2010 Ira W. Snyder <iws@ovro.caltech.edu> | |
bd358132 IS |
6 | */ |
7 | ||
8 | #ifndef JANZ_H | |
9 | #define JANZ_H | |
10 | ||
11 | struct janz_platform_data { | |
12 | /* MODULbus Module Number */ | |
13 | unsigned int modno; | |
14 | }; | |
15 | ||
16 | /* PLX bridge chip onboard registers */ | |
17 | struct 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 */ |